hotspot/src/share/vm/runtime/sharedRuntime.cpp
author never
Wed, 01 Feb 2012 07:59:01 -0800
changeset 11636 3c07b54482a5
parent 11487 f45d945367d4
child 11637 030466036615
permissions -rw-r--r--
7141200: log some interesting information in ring buffers for crashes Reviewed-by: kvn, jrose, kevinw, brutisso, twisti, jmasa
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/*
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 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/compiledIC.hpp"
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#include "code/scopeDesc.hpp"
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#include "code/vtableStubs.hpp"
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#include "compiler/abstractCompiler.hpp"
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#include "compiler/compileBroker.hpp"
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#include "compiler/compilerOracle.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/interpreterRuntime.hpp"
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#include "memory/gcLocker.inline.hpp"
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#include "memory/universe.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "prims/forte.hpp"
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#include "prims/jvmtiExport.hpp"
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#include "prims/jvmtiRedefineClassesTrace.hpp"
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#include "prims/methodHandles.hpp"
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#include "prims/nativeLookup.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/biasedLocking.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/init.hpp"
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#include "runtime/interfaceSupport.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/stubRoutines.hpp"
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#include "runtime/vframe.hpp"
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#include "runtime/vframeArray.hpp"
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#include "utilities/copy.hpp"
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#include "utilities/dtrace.hpp"
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#include "utilities/events.hpp"
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#include "utilities/hashtable.inline.hpp"
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#include "utilities/xmlstream.hpp"
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#ifdef TARGET_ARCH_x86
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# include "nativeInst_x86.hpp"
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# include "vmreg_x86.inline.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "nativeInst_sparc.hpp"
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# include "vmreg_sparc.inline.hpp"
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#endif
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#ifdef TARGET_ARCH_zero
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# include "nativeInst_zero.hpp"
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# include "vmreg_zero.inline.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "nativeInst_arm.hpp"
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# include "vmreg_arm.inline.hpp"
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#endif
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#ifdef TARGET_ARCH_ppc
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# include "nativeInst_ppc.hpp"
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# include "vmreg_ppc.inline.hpp"
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#endif
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#ifdef COMPILER1
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#include "c1/c1_Runtime1.hpp"
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#endif
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// Shared stub locations
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RuntimeStub*        SharedRuntime::_wrong_method_blob;
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RuntimeStub*        SharedRuntime::_ic_miss_blob;
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RuntimeStub*        SharedRuntime::_resolve_opt_virtual_call_blob;
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RuntimeStub*        SharedRuntime::_resolve_virtual_call_blob;
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RuntimeStub*        SharedRuntime::_resolve_static_call_blob;
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DeoptimizationBlob* SharedRuntime::_deopt_blob;
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RicochetBlob*       SharedRuntime::_ricochet_blob;
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SafepointBlob*      SharedRuntime::_polling_page_safepoint_handler_blob;
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SafepointBlob*      SharedRuntime::_polling_page_return_handler_blob;
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#ifdef COMPILER2
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UncommonTrapBlob*   SharedRuntime::_uncommon_trap_blob;
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#endif // COMPILER2
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//----------------------------generate_stubs-----------------------------------
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void SharedRuntime::generate_stubs() {
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  _wrong_method_blob                   = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::handle_wrong_method),         "wrong_method_stub");
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  _ic_miss_blob                        = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::handle_wrong_method_ic_miss), "ic_miss_stub");
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  _resolve_opt_virtual_call_blob       = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::resolve_opt_virtual_call_C),  "resolve_opt_virtual_call");
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  _resolve_virtual_call_blob           = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::resolve_virtual_call_C),      "resolve_virtual_call");
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  _resolve_static_call_blob            = generate_resolve_blob(CAST_FROM_FN_PTR(address, SharedRuntime::resolve_static_call_C),       "resolve_static_call");
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  _polling_page_safepoint_handler_blob = generate_handler_blob(CAST_FROM_FN_PTR(address, SafepointSynchronize::handle_polling_page_exception), false);
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  _polling_page_return_handler_blob    = generate_handler_blob(CAST_FROM_FN_PTR(address, SafepointSynchronize::handle_polling_page_exception), true);
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  generate_ricochet_blob();
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  generate_deopt_blob();
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#ifdef COMPILER2
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  generate_uncommon_trap_blob();
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#endif // COMPILER2
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}
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//----------------------------generate_ricochet_blob---------------------------
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void SharedRuntime::generate_ricochet_blob() {
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  if (!EnableInvokeDynamic)  return;  // leave it as a null
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  // allocate space for the code
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  ResourceMark rm;
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  // setup code generation tools
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  CodeBuffer buffer("ricochet_blob", 256 LP64_ONLY(+ 256), 256);  // XXX x86 LP64L: 512, 512
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  MacroAssembler* masm = new MacroAssembler(&buffer);
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  int bounce_offset = -1, exception_offset = -1, frame_size_in_words = -1;
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  MethodHandles::RicochetFrame::generate_ricochet_blob(masm, &bounce_offset, &exception_offset, &frame_size_in_words);
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  // -------------
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  // make sure all code is generated
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  masm->flush();
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  // failed to generate?
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  if (bounce_offset < 0 || exception_offset < 0 || frame_size_in_words < 0) {
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    assert(false, "bad ricochet blob");
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    return;
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  }
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  _ricochet_blob = RicochetBlob::create(&buffer, bounce_offset, exception_offset, frame_size_in_words);
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}
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#include <math.h>
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#ifndef USDT2
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HS_DTRACE_PROBE_DECL4(hotspot, object__alloc, Thread*, char*, int, size_t);
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HS_DTRACE_PROBE_DECL7(hotspot, method__entry, int,
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                      char*, int, char*, int, char*, int);
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HS_DTRACE_PROBE_DECL7(hotspot, method__return, int,
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                      char*, int, char*, int, char*, int);
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#endif /* !USDT2 */
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// Implementation of SharedRuntime
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#ifndef PRODUCT
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// For statistics
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int SharedRuntime::_ic_miss_ctr = 0;
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int SharedRuntime::_wrong_method_ctr = 0;
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int SharedRuntime::_resolve_static_ctr = 0;
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int SharedRuntime::_resolve_virtual_ctr = 0;
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int SharedRuntime::_resolve_opt_virtual_ctr = 0;
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int SharedRuntime::_implicit_null_throws = 0;
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int SharedRuntime::_implicit_div0_throws = 0;
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int SharedRuntime::_throw_null_ctr = 0;
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int SharedRuntime::_nof_normal_calls = 0;
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int SharedRuntime::_nof_optimized_calls = 0;
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int SharedRuntime::_nof_inlined_calls = 0;
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int SharedRuntime::_nof_megamorphic_calls = 0;
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int SharedRuntime::_nof_static_calls = 0;
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int SharedRuntime::_nof_inlined_static_calls = 0;
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int SharedRuntime::_nof_interface_calls = 0;
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int SharedRuntime::_nof_optimized_interface_calls = 0;
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int SharedRuntime::_nof_inlined_interface_calls = 0;
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int SharedRuntime::_nof_megamorphic_interface_calls = 0;
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int SharedRuntime::_nof_removable_exceptions = 0;
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int SharedRuntime::_new_instance_ctr=0;
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int SharedRuntime::_new_array_ctr=0;
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int SharedRuntime::_multi1_ctr=0;
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int SharedRuntime::_multi2_ctr=0;
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int SharedRuntime::_multi3_ctr=0;
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int SharedRuntime::_multi4_ctr=0;
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int SharedRuntime::_multi5_ctr=0;
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int SharedRuntime::_mon_enter_stub_ctr=0;
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int SharedRuntime::_mon_exit_stub_ctr=0;
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int SharedRuntime::_mon_enter_ctr=0;
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int SharedRuntime::_mon_exit_ctr=0;
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int SharedRuntime::_partial_subtype_ctr=0;
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int SharedRuntime::_jbyte_array_copy_ctr=0;
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int SharedRuntime::_jshort_array_copy_ctr=0;
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int SharedRuntime::_jint_array_copy_ctr=0;
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int SharedRuntime::_jlong_array_copy_ctr=0;
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int SharedRuntime::_oop_array_copy_ctr=0;
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int SharedRuntime::_checkcast_array_copy_ctr=0;
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int SharedRuntime::_unsafe_array_copy_ctr=0;
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int SharedRuntime::_generic_array_copy_ctr=0;
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int SharedRuntime::_slow_array_copy_ctr=0;
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int SharedRuntime::_find_handler_ctr=0;
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int SharedRuntime::_rethrow_ctr=0;
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int     SharedRuntime::_ICmiss_index                    = 0;
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int     SharedRuntime::_ICmiss_count[SharedRuntime::maxICmiss_count];
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address SharedRuntime::_ICmiss_at[SharedRuntime::maxICmiss_count];
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void SharedRuntime::trace_ic_miss(address at) {
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  for (int i = 0; i < _ICmiss_index; i++) {
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    if (_ICmiss_at[i] == at) {
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      _ICmiss_count[i]++;
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      return;
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    }
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  }
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  int index = _ICmiss_index++;
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  if (_ICmiss_index >= maxICmiss_count) _ICmiss_index = maxICmiss_count - 1;
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  _ICmiss_at[index] = at;
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  _ICmiss_count[index] = 1;
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}
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void SharedRuntime::print_ic_miss_histogram() {
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  if (ICMissHistogram) {
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    tty->print_cr ("IC Miss Histogram:");
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    int tot_misses = 0;
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    for (int i = 0; i < _ICmiss_index; i++) {
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      tty->print_cr("  at: " INTPTR_FORMAT "  nof: %d", _ICmiss_at[i], _ICmiss_count[i]);
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      tot_misses += _ICmiss_count[i];
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    }
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    tty->print_cr ("Total IC misses: %7d", tot_misses);
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  }
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}
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#endif // PRODUCT
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#ifndef SERIALGC
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// G1 write-barrier pre: executed before a pointer store.
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JRT_LEAF(void, SharedRuntime::g1_wb_pre(oopDesc* orig, JavaThread *thread))
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  if (orig == NULL) {
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    assert(false, "should be optimized out");
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    return;
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  }
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  assert(orig->is_oop(true /* ignore mark word */), "Error");
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  // store the original value that was in the field reference
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  thread->satb_mark_queue().enqueue(orig);
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JRT_END
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// G1 write-barrier post: executed after a pointer store.
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JRT_LEAF(void, SharedRuntime::g1_wb_post(void* card_addr, JavaThread* thread))
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  thread->dirty_card_queue().enqueue(card_addr);
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JRT_END
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#endif // !SERIALGC
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JRT_LEAF(jlong, SharedRuntime::lmul(jlong y, jlong x))
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  return x * y;
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JRT_END
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JRT_LEAF(jlong, SharedRuntime::ldiv(jlong y, jlong x))
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  if (x == min_jlong && y == CONST64(-1)) {
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    return x;
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  } else {
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    return x / y;
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  }
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JRT_END
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JRT_LEAF(jlong, SharedRuntime::lrem(jlong y, jlong x))
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  if (x == min_jlong && y == CONST64(-1)) {
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    return 0;
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  } else {
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    return x % y;
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  }
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JRT_END
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const juint  float_sign_mask  = 0x7FFFFFFF;
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const juint  float_infinity   = 0x7F800000;
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const julong double_sign_mask = CONST64(0x7FFFFFFFFFFFFFFF);
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const julong double_infinity  = CONST64(0x7FF0000000000000);
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JRT_LEAF(jfloat, SharedRuntime::frem(jfloat  x, jfloat  y))
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#ifdef _WIN64
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  // 64-bit Windows on amd64 returns the wrong values for
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  // infinity operands.
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  union { jfloat f; juint i; } xbits, ybits;
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  xbits.f = x;
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  ybits.f = y;
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  // x Mod Infinity == x unless x is infinity
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  if ( ((xbits.i & float_sign_mask) != float_infinity) &&
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       ((ybits.i & float_sign_mask) == float_infinity) ) {
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    return x;
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  }
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#endif
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  return ((jfloat)fmod((double)x,(double)y));
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JRT_END
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JRT_LEAF(jdouble, SharedRuntime::drem(jdouble x, jdouble y))
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#ifdef _WIN64
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  union { jdouble d; julong l; } xbits, ybits;
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  xbits.d = x;
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  ybits.d = y;
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  // x Mod Infinity == x unless x is infinity
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  if ( ((xbits.l & double_sign_mask) != double_infinity) &&
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       ((ybits.l & double_sign_mask) == double_infinity) ) {
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    return x;
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  }
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#endif
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  return ((jdouble)fmod((double)x,(double)y));
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JRT_END
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#ifdef __SOFTFP__
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JRT_LEAF(jfloat, SharedRuntime::fadd(jfloat x, jfloat y))
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  return x + y;
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JRT_END
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JRT_LEAF(jfloat, SharedRuntime::fsub(jfloat x, jfloat y))
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  return x - y;
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JRT_END
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JRT_LEAF(jfloat, SharedRuntime::fmul(jfloat x, jfloat y))
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  return x * y;
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JRT_END
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JRT_LEAF(jfloat, SharedRuntime::fdiv(jfloat x, jfloat y))
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  return x / y;
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JRT_END
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diff changeset
   333
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   334
JRT_LEAF(jdouble, SharedRuntime::dadd(jdouble x, jdouble y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   335
  return x + y;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   336
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   337
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   338
JRT_LEAF(jdouble, SharedRuntime::dsub(jdouble x, jdouble y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   339
  return x - y;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   340
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   341
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   342
JRT_LEAF(jdouble, SharedRuntime::dmul(jdouble x, jdouble y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   343
  return x * y;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   344
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   345
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   346
JRT_LEAF(jdouble, SharedRuntime::ddiv(jdouble x, jdouble y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   347
  return x / y;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   348
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   349
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   350
JRT_LEAF(jfloat, SharedRuntime::i2f(jint x))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   351
  return (jfloat)x;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   352
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   353
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   354
JRT_LEAF(jdouble, SharedRuntime::i2d(jint x))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   355
  return (jdouble)x;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   356
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   357
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   358
JRT_LEAF(jdouble, SharedRuntime::f2d(jfloat x))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   359
  return (jdouble)x;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   360
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   361
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   362
JRT_LEAF(int,  SharedRuntime::fcmpl(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   363
  return x>y ? 1 : (x==y ? 0 : -1);  /* x<y or is_nan*/
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   364
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   365
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   366
JRT_LEAF(int,  SharedRuntime::fcmpg(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   367
  return x<y ? -1 : (x==y ? 0 : 1);  /* x>y or is_nan */
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   368
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   369
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   370
JRT_LEAF(int,  SharedRuntime::dcmpl(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   371
  return x>y ? 1 : (x==y ? 0 : -1); /* x<y or is_nan */
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   372
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   373
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   374
JRT_LEAF(int,  SharedRuntime::dcmpg(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   375
  return x<y ? -1 : (x==y ? 0 : 1);  /* x>y or is_nan */
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   376
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   377
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   378
// Functions to return the opposite of the aeabi functions for nan.
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   379
JRT_LEAF(int, SharedRuntime::unordered_fcmplt(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   380
  return (x < y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   381
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   382
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   383
JRT_LEAF(int, SharedRuntime::unordered_dcmplt(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   384
  return (x < y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   385
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   386
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   387
JRT_LEAF(int, SharedRuntime::unordered_fcmple(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   388
  return (x <= y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   389
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   390
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   391
JRT_LEAF(int, SharedRuntime::unordered_dcmple(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   392
  return (x <= y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   393
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   394
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   395
JRT_LEAF(int, SharedRuntime::unordered_fcmpge(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   396
  return (x >= y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   397
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   398
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   399
JRT_LEAF(int, SharedRuntime::unordered_dcmpge(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   400
  return (x >= y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   401
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   402
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   403
JRT_LEAF(int, SharedRuntime::unordered_fcmpgt(float x, float y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   404
  return (x > y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   405
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   406
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   407
JRT_LEAF(int, SharedRuntime::unordered_dcmpgt(double x, double y))
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   408
  return (x > y) ? 1 : ((g_isnan(x) || g_isnan(y)) ? 1 : 0);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   409
JRT_END
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   410
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   411
// Intrinsics make gcc generate code for these.
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   412
float  SharedRuntime::fneg(float f)   {
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   413
  return -f;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   414
}
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   415
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   416
double SharedRuntime::dneg(double f)  {
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   417
  return -f;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   418
}
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   419
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   420
#endif // __SOFTFP__
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   421
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   422
#if defined(__SOFTFP__) || defined(E500V2)
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   423
// Intrinsics make gcc generate code for these.
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   424
double SharedRuntime::dabs(double f)  {
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   425
  return (f <= (double)0.0) ? (double)0.0 - f : f;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   426
}
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   427
6965
4ef36b2a6a3a 6989297: Integrate additional portability improvements
bobv
parents: 6463
diff changeset
   428
#endif
4ef36b2a6a3a 6989297: Integrate additional portability improvements
bobv
parents: 6463
diff changeset
   429
4ef36b2a6a3a 6989297: Integrate additional portability improvements
bobv
parents: 6463
diff changeset
   430
#if defined(__SOFTFP__) || defined(PPC)
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   431
double SharedRuntime::dsqrt(double f) {
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   432
  return sqrt(f);
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   433
}
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
   434
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
JRT_LEAF(jint, SharedRuntime::f2i(jfloat  x))
1884
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   437
  if (g_isnan(x))
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   438
    return 0;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   439
  if (x >= (jfloat) max_jint)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   440
    return max_jint;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   441
  if (x <= (jfloat) min_jint)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   442
    return min_jint;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   443
  return (jint) x;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
JRT_LEAF(jlong, SharedRuntime::f2l(jfloat  x))
1884
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   448
  if (g_isnan(x))
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   449
    return 0;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   450
  if (x >= (jfloat) max_jlong)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   451
    return max_jlong;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   452
  if (x <= (jfloat) min_jlong)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   453
    return min_jlong;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   454
  return (jlong) x;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
JRT_LEAF(jint, SharedRuntime::d2i(jdouble x))
1884
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   459
  if (g_isnan(x))
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   460
    return 0;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   461
  if (x >= (jdouble) max_jint)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   462
    return max_jint;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   463
  if (x <= (jdouble) min_jint)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   464
    return min_jint;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   465
  return (jint) x;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
JRT_LEAF(jlong, SharedRuntime::d2l(jdouble x))
1884
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   470
  if (g_isnan(x))
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   471
    return 0;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   472
  if (x >= (jdouble) max_jlong)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   473
    return max_jlong;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   474
  if (x <= (jdouble) min_jlong)
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   475
    return min_jlong;
f61e87294c59 6778657: Casts in SharedRuntime::f2i, f2l, d2i and d2l rely on undefined C++ behaviour
kvn
parents: 1618
diff changeset
   476
  return (jlong) x;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
JRT_LEAF(jfloat, SharedRuntime::d2f(jdouble x))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  return (jfloat)x;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
JRT_LEAF(jfloat, SharedRuntime::l2f(jlong x))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  return (jfloat)x;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
JRT_LEAF(jdouble, SharedRuntime::l2d(jlong x))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  return (jdouble)x;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
// Exception handling accross interpreter/compiler boundaries
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
// exception_handler_for_return_address(...) returns the continuation address.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
// The continuation address is the entry point of the exception handler of the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
// previous frame depending on the return address.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
   500
address SharedRuntime::raw_exception_handler_for_return_address(JavaThread* thread, address return_address) {
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   501
  assert(frame::verify_return_pc(return_address), err_msg("must be a return address: " INTPTR_FORMAT, return_address));
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   502
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   503
  // Reset method handle flag.
5252
58f23871a5b6 6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents: 5050
diff changeset
   504
  thread->set_is_method_handle_return(false);
58f23871a5b6 6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents: 5050
diff changeset
   505
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   506
  // The fastest case first
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  CodeBlob* blob = CodeCache::find_blob(return_address);
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   508
  nmethod* nm = (blob != NULL) ? blob->as_nmethod_or_null() : NULL;
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   509
  if (nm != NULL) {
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   510
    // Set flag if return address is a method handle call site.
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   511
    thread->set_is_method_handle_return(nm->is_method_handle_return(return_address));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
    // native nmethods don't have exception handlers
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   513
    assert(!nm->is_native_method(), "no exception handler");
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   514
    assert(nm->header_begin() != nm->exception_begin(), "no exception handler");
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   515
    if (nm->is_deopt_pc(return_address)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
      return SharedRuntime::deopt_blob()->unpack_with_exception();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
    } else {
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   518
      return nm->exception_begin();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  // Entry code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  if (StubRoutines::returns_to_call_stub(return_address)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
    return StubRoutines::catch_exception_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  // Interpreted code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  if (Interpreter::contains(return_address)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
    return Interpreter::rethrow_exception_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
   530
  // Ricochet frame unwind code
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
   531
  if (SharedRuntime::ricochet_blob() != NULL && SharedRuntime::ricochet_blob()->returns_to_bounce_addr(return_address)) {
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
   532
    return SharedRuntime::ricochet_blob()->exception_addr();
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
   533
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   535
  guarantee(blob == NULL || !blob->is_runtime_stub(), "caller should have skipped stub");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
  guarantee(!VtableStubs::contains(return_address), "NULL exceptions in vtables should have been handled already!");
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   537
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  { ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
    tty->print_cr("No exception handler found for exception at " INTPTR_FORMAT " - potential problems:", return_address);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
    tty->print_cr("a) exception happened in (new?) code stubs/buffers that is not handled here");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
    tty->print_cr("b) other problem");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
#endif // PRODUCT
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8107
diff changeset
   545
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
   551
JRT_LEAF(address, SharedRuntime::exception_handler_for_return_address(JavaThread* thread, address return_address))
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
   552
  return raw_exception_handler_for_return_address(thread, return_address);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
   555
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
address SharedRuntime::get_poll_stub(address pc) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
  address stub;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  // Look up the code blob
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  CodeBlob *cb = CodeCache::find_blob(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  // Should be an nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  assert( cb && cb->is_nmethod(), "safepoint polling: pc must refer to an nmethod" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  // Look up the relocation information
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  assert( ((nmethod*)cb)->is_at_poll_or_poll_return(pc),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
    "safepoint polling: type must be poll" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  assert( ((NativeInstruction*)pc)->is_safepoint_poll(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
    "Only polling locations are used for safepoint");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  bool at_poll_return = ((nmethod*)cb)->is_at_poll_return(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
  if (at_poll_return) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    assert(SharedRuntime::polling_page_return_handler_blob() != NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
           "polling page return stub not created yet");
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
   575
    stub = SharedRuntime::polling_page_return_handler_blob()->entry_point();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
    assert(SharedRuntime::polling_page_safepoint_handler_blob() != NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
           "polling page safepoint stub not created yet");
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
   579
    stub = SharedRuntime::polling_page_safepoint_handler_blob()->entry_point();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  if( TraceSafepoint ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
    char buf[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
    jio_snprintf(buf, sizeof(buf),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
                 "... found polling page %s exception at pc = "
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
                 INTPTR_FORMAT ", stub =" INTPTR_FORMAT,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
                 at_poll_return ? "return" : "loop",
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
                 (intptr_t)pc, (intptr_t)stub);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
    tty->print_raw_cr(buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  return stub;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   596
oop SharedRuntime::retrieve_receiver( Symbol* sig, frame caller ) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  assert(caller.is_interpreted_frame(), "");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  int args_size = ArgumentSizeComputer(sig).size() + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  assert(args_size <= caller.interpreter_frame_expression_stack_size(), "receiver must be on interpreter stack");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  oop result = (oop) *caller.interpreter_frame_tos_at(args_size - 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  assert(Universe::heap()->is_in(result) && result->is_oop(), "receiver must be an oop");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
void SharedRuntime::throw_and_post_jvmti_exception(JavaThread *thread, Handle h_exception) {
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4735
diff changeset
   607
  if (JvmtiExport::can_post_on_exceptions()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
    vframeStream vfst(thread, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
    methodHandle method = methodHandle(thread, vfst.method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
    address bcp = method()->bcp_from(vfst.bci());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
    JvmtiExport::post_exception_throw(thread, method(), bcp, h_exception());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  Exceptions::_throw(thread, __FILE__, __LINE__, h_exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   616
void SharedRuntime::throw_and_post_jvmti_exception(JavaThread *thread, Symbol* name, const char *message) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
  Handle h_exception = Exceptions::new_exception(thread, name, message);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  throw_and_post_jvmti_exception(thread, h_exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
2136
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   621
// The interpreter code to call this tracing function is only
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   622
// called/generated when TraceRedefineClasses has the right bits
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   623
// set. Since obsolete methods are never compiled, we don't have
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   624
// to modify the compilers to generate calls to this function.
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   625
//
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   626
JRT_LEAF(int, SharedRuntime::rc_trace_method_entry(
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   627
    JavaThread* thread, methodOopDesc* method))
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   628
  assert(RC_TRACE_IN_RANGE(0x00001000, 0x00002000), "wrong call");
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   629
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   630
  if (method->is_obsolete()) {
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   631
    // We are calling an obsolete method, but this is not necessarily
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   632
    // an error. Our method could have been redefined just after we
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   633
    // fetched the methodOop from the constant pool.
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   634
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   635
    // RC_TRACE macro has an embedded ResourceMark
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   636
    RC_TRACE_WITH_THREAD(0x00001000, thread,
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   637
                         ("calling obsolete method '%s'",
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   638
                          method->name_and_sig_as_C_string()));
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   639
    if (RC_TRACE_ENABLED(0x00002000)) {
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   640
      // this option is provided to debug calls to obsolete methods
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   641
      guarantee(false, "faulting at call to an obsolete method.");
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   642
    }
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   643
  }
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   644
  return 0;
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   645
JRT_END
c55428da3cec 6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents: 1618
diff changeset
   646
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
// ret_pc points into caller; we are returning caller's exception handler
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
// for given exception
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
address SharedRuntime::compute_compiled_exc_handler(nmethod* nm, address ret_pc, Handle& exception,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
                                                    bool force_unwind, bool top_frame_only) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
  assert(nm != NULL, "must exist");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
  ScopeDesc* sd = nm->scope_desc_at(ret_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  // determine handler bci, if any
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
  int handler_bci = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  int scope_depth = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
  if (!force_unwind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    int bci = sd->bci();
10731
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   662
    bool recursive_exception = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
      bool skip_scope_increment = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
      // exception handler lookup
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
      KlassHandle ek (THREAD, exception->klass());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
      handler_bci = sd->method()->fast_exception_handler_bci_for(ek, bci, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
      if (HAS_PENDING_EXCEPTION) {
10731
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   669
        recursive_exception = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
        // We threw an exception while trying to find the exception handler.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
        // Transfer the new exception to the exception handle which will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
        // be set into thread local storage, and do another lookup for an
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
        // exception handler for this exception, this time starting at the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
        // BCI of the exception handler which caused the exception to be
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
        // thrown (bugs 4307310 and 4546590). Set "exception" reference
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
        // argument to ensure that the correct exception is thrown (4870175).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
        exception = Handle(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
        CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
        if (handler_bci >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
          bci = handler_bci;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
          handler_bci = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
          skip_scope_increment = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
      }
10731
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   685
      else {
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   686
        recursive_exception = false;
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   687
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
      if (!top_frame_only && handler_bci < 0 && !skip_scope_increment) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
        sd = sd->sender();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
        if (sd != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
          bci = sd->bci();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
        ++scope_depth;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
      }
10731
ffe24d6f0575 6865265: JVM crashes with "missing exception handler" error
kvn
parents: 10254
diff changeset
   695
    } while (recursive_exception || (!top_frame_only && handler_bci < 0 && sd != NULL));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  // found handling method => lookup exception handler
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
   699
  int catch_pco = ret_pc - nm->code_begin();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  ExceptionHandlerTable table(nm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  HandlerTableEntry *t = table.entry_for(catch_pco, handler_bci, scope_depth);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  if (t == NULL && (nm->is_compiled_by_c1() || handler_bci != -1)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    // Allow abbreviated catch tables.  The idea is to allow a method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
    // to materialize its exceptions without committing to the exact
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    // routing of exceptions.  In particular this is needed for adding
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
    // a synthethic handler to unlock monitors when inlining
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    // synchonized methods since the unlock path isn't represented in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
    // the bytecodes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
    t = table.entry_for(catch_pco, -1, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
5334
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   713
#ifdef COMPILER1
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   714
  if (t == NULL && nm->is_compiled_by_c1()) {
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   715
    assert(nm->unwind_handler_begin() != NULL, "");
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   716
    return nm->unwind_handler_begin();
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   717
  }
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   718
#endif
b2d040a8d375 6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents: 5252
diff changeset
   719
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
  if (t == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    tty->print_cr("MISSING EXCEPTION HANDLER for pc " INTPTR_FORMAT " and handler bci %d", ret_pc, handler_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
    tty->print_cr("   Exception:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
    exception->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
    tty->print_cr(" Compiled exception table :");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
    table.print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
    nm->print_code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
    guarantee(false, "missing exception handler");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
   732
  return nm->code_begin() + t->pco();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
JRT_ENTRY(void, SharedRuntime::throw_AbstractMethodError(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  // These errors occur only at call sites
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_AbstractMethodError());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
189
4248c8e21063 6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents: 1
diff changeset
   740
JRT_ENTRY(void, SharedRuntime::throw_IncompatibleClassChangeError(JavaThread* thread))
4248c8e21063 6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents: 1
diff changeset
   741
  // These errors occur only at call sites
4248c8e21063 6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents: 1
diff changeset
   742
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_IncompatibleClassChangeError(), "vtable stub");
4248c8e21063 6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents: 1
diff changeset
   743
JRT_END
4248c8e21063 6664627: Merge changes made only in hotspot 11 forward to jdk 7
dcubed
parents: 1
diff changeset
   744
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
JRT_ENTRY(void, SharedRuntime::throw_ArithmeticException(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_ArithmeticException(), "/ by zero");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
JRT_ENTRY(void, SharedRuntime::throw_NullPointerException(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_NullPointerException());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
JRT_ENTRY(void, SharedRuntime::throw_NullPointerException_at_call(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  // This entry point is effectively only used for NullPointerExceptions which occur at inline
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
  // cache sites (when the callee activation is not yet set up) so we are at a call site
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_NullPointerException());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
JRT_ENTRY(void, SharedRuntime::throw_StackOverflowError(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  // We avoid using the normal exception construction in this case because
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  // it performs an upcall to Java, and we're already out of stack space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
  klassOop k = SystemDictionary::StackOverflowError_klass();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  oop exception_oop = instanceKlass::cast(k)->allocate_instance(CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
  Handle exception (thread, exception_oop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
  if (StackTraceInThrowable) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
    java_lang_Throwable::fill_in_stack_trace(exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  throw_and_post_jvmti_exception(thread, exception);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
10004
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   771
JRT_ENTRY(void, SharedRuntime::throw_WrongMethodTypeException(JavaThread* thread, oopDesc* required, oopDesc* actual))
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   772
  assert(thread == JavaThread::current() && required->is_oop() && actual->is_oop(), "bad args");
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   773
  ResourceMark rm;
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   774
  char* message = SharedRuntime::generate_wrong_method_type_message(thread, required, actual);
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   775
  throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_invoke_WrongMethodTypeException(), message);
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   776
JRT_END
190e88f7edd1 7055355: JSR 292: crash while throwing WrongMethodTypeException
never
parents: 9976
diff changeset
   777
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
address SharedRuntime::continuation_for_implicit_exception(JavaThread* thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
                                                           address pc,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
                                                           SharedRuntime::ImplicitExceptionKind exception_kind)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
  address target_pc = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  if (Interpreter::contains(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
#ifdef CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
    // C++ interpreter doesn't throw implicit exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
#else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
    switch (exception_kind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
      case IMPLICIT_NULL:           return Interpreter::throw_NullPointerException_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
      case IMPLICIT_DIVIDE_BY_ZERO: return Interpreter::throw_ArithmeticException_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
      case STACK_OVERFLOW:          return Interpreter::throw_StackOverflowError_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
      default:                      ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
#endif // !CC_INTERP
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
    switch (exception_kind) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
      case STACK_OVERFLOW: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
        // Stack overflow only occurs upon frame setup; the callee is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
        // going to be unwound. Dispatch to a shared runtime stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
        // which will cause the StackOverflowError to be fabricated
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
        // and processed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
        // For stack overflow in deoptimization blob, cleanup thread.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
        if (thread->deopt_mark() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
          Deoptimization::cleanup_deopt_info(thread, NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
        return StubRoutines::throw_StackOverflowError_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
      case IMPLICIT_NULL: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
        if (VtableStubs::contains(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
          // We haven't yet entered the callee frame. Fabricate an
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
          // exception and begin dispatching it in the caller. Since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
          // the caller was at a call site, it's safe to destroy all
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
          // caller-saved registers, as these entry points do.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
          VtableStub* vt_stub = VtableStubs::stub_containing(pc);
1618
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   817
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   818
          // If vt_stub is NULL, then return NULL to signal handler to report the SEGV error.
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   819
          if (vt_stub == NULL) return NULL;
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   820
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
          if (vt_stub->is_abstract_method_error(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
            assert(!vt_stub->is_vtable_stub(), "should never see AbstractMethodErrors from vtable-type VtableStubs");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
            return StubRoutines::throw_AbstractMethodError_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
            return StubRoutines::throw_NullPointerException_at_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
          CodeBlob* cb = CodeCache::find_blob(pc);
1618
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   829
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   830
          // If code blob is NULL, then return NULL to signal handler to report the SEGV error.
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   831
          if (cb == NULL) return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
          // Exception happened in CodeCache. Must be either:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
          // 1. Inline-cache check in C2I handler blob,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
          // 2. Inline-cache check in nmethod, or
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
          // 3. Implict null exception in nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
          if (!cb->is_nmethod()) {
5050
47ecd86932ce 6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents: 5046
diff changeset
   839
            guarantee(cb->is_adapter_blob() || cb->is_method_handles_adapter_blob(),
1618
2d86b9b84aa5 6739363: Xcheck jni doesn't check native function arguments
poonam
parents: 1388
diff changeset
   840
                      "exception happened outside interpreter, nmethods and vtable stubs (1)");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
            // There is no handler here, so we will simply unwind.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
            return StubRoutines::throw_NullPointerException_at_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
          // Otherwise, it's an nmethod.  Consult its exception handlers.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
          nmethod* nm = (nmethod*)cb;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
          if (nm->inlinecache_check_contains(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
            // exception happened inside inline-cache check code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
            // => the nmethod is not yet active (i.e., the frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
            // is not set up yet) => use return address pushed by
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
            // caller => don't push another return address
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
            return StubRoutines::throw_NullPointerException_at_call_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
          _implicit_null_throws++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
          target_pc = nm->continuation_for_implicit_exception(pc);
4891
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   859
          // If there's an unexpected fault, target_pc might be NULL,
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   860
          // in which case we want to fall through into the normal
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   861
          // error handling code.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
        break; // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
      case IMPLICIT_DIVIDE_BY_ZERO: {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
        nmethod* nm = CodeCache::find_nmethod(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
        guarantee(nm != NULL, "must have containing nmethod for implicit division-by-zero exceptions");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
        _implicit_div0_throws++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
        target_pc = nm->continuation_for_implicit_exception(pc);
4891
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   875
        // If there's an unexpected fault, target_pc might be NULL,
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   876
        // in which case we want to fall through into the normal
7c8755dd5bb2 6920293: OptimizeStringConcat causing core dumps
never
parents: 4755
diff changeset
   877
        // error handling code.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
        break; // fall through
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
      default: ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
    assert(exception_kind == IMPLICIT_NULL || exception_kind == IMPLICIT_DIVIDE_BY_ZERO, "wrong implicit exception kind");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
    // for AbortVMOnException flag
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
    NOT_PRODUCT(Exceptions::debug_check_abort("java.lang.NullPointerException"));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
    if (exception_kind == IMPLICIT_NULL) {
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11487
diff changeset
   889
      Events::log_exception(thread, "Implicit null exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   890
    } else {
11636
3c07b54482a5 7141200: log some interesting information in ring buffers for crashes
never
parents: 11487
diff changeset
   891
      Events::log_exception(thread, "Implicit division by zero exception at " INTPTR_FORMAT " to " INTPTR_FORMAT, pc, target_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    return target_pc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
  ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
489c9b5090e2 Initial load
duke
parents:
diff changeset
   900
489c9b5090e2 Initial load
duke
parents:
diff changeset
   901
JNI_ENTRY(void, throw_unsatisfied_link_error(JNIEnv* env, ...))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   902
{
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
  THROW(vmSymbols::java_lang_UnsatisfiedLinkError());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
JNI_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
address SharedRuntime::native_method_throw_unsatisfied_link_error_entry() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  return CAST_FROM_FN_PTR(address, &throw_unsatisfied_link_error);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
JRT_ENTRY(intptr_t, SharedRuntime::trace_bytecode(JavaThread* thread, intptr_t preserve_this_value, intptr_t tos, intptr_t tos2))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  const frame f = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  assert(f.is_interpreted_frame(), "must be an interpreted frame");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
  methodHandle mh(THREAD, f.interpreter_frame_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
  BytecodeTracer::trace(mh, f.interpreter_frame_bcp(), tos, tos2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
  return preserve_this_value;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
#endif // !PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
JRT_ENTRY(void, SharedRuntime::yield_all(JavaThread* thread, int attempts))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
  os::yield_all(attempts);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
JRT_ENTRY_NO_ASYNC(void, SharedRuntime::register_finalizer(JavaThread* thread, oopDesc* obj))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
  assert(obj->is_oop(), "must be a valid oop");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
  assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
  instanceKlass::register_finalizer(instanceOop(obj), CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
jlong SharedRuntime::get_java_tid(Thread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
  if (thread != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    if (thread->is_Java_thread()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
      oop obj = ((JavaThread*)thread)->threadObj();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
      return (obj == NULL) ? 0 : java_lang_Thread::thread_id(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
/**
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
 * This function ought to be a void function, but cannot be because
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
 * it gets turned into a tail-call on sparc, which runs into dtrace bug
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
 * 6254741.  Once that is fixed we can remove the dummy return value.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
int SharedRuntime::dtrace_object_alloc(oopDesc* o) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  return dtrace_object_alloc_base(Thread::current(), o);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
int SharedRuntime::dtrace_object_alloc_base(Thread* thread, oopDesc* o) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  assert(DTraceAllocProbes, "wrong call");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
  Klass* klass = o->blueprint();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   960
  int size = o->size();
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   961
  Symbol* name = klass->name();
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   962
#ifndef USDT2
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
  HS_DTRACE_PROBE4(hotspot, object__alloc, get_java_tid(thread),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
                   name->bytes(), name->utf8_length(), size * HeapWordSize);
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   965
#else /* USDT2 */
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   966
  HOTSPOT_OBJECT_ALLOC(
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   967
                   get_java_tid(thread),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   968
                   (char *) name->bytes(), name->utf8_length(), size * HeapWordSize);
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   969
#endif /* USDT2 */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
JRT_LEAF(int, SharedRuntime::dtrace_method_entry(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
    JavaThread* thread, methodOopDesc* method))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
  assert(DTraceMethodProbes, "wrong call");
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   976
  Symbol* kname = method->klass_name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   977
  Symbol* name = method->name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   978
  Symbol* sig = method->signature();
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   979
#ifndef USDT2
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
  HS_DTRACE_PROBE7(hotspot, method__entry, get_java_tid(thread),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
      kname->bytes(), kname->utf8_length(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
      name->bytes(), name->utf8_length(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
      sig->bytes(), sig->utf8_length());
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   984
#else /* USDT2 */
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   985
  HOTSPOT_METHOD_ENTRY(
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   986
      get_java_tid(thread),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   987
      (char *) kname->bytes(), kname->utf8_length(),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   988
      (char *) name->bytes(), name->utf8_length(),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   989
      (char *) sig->bytes(), sig->utf8_length());
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
   990
#endif /* USDT2 */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
JRT_LEAF(int, SharedRuntime::dtrace_method_exit(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
    JavaThread* thread, methodOopDesc* method))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
  assert(DTraceMethodProbes, "wrong call");
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   997
  Symbol* kname = method->klass_name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   998
  Symbol* name = method->name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   999
  Symbol* sig = method->signature();
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1000
#ifndef USDT2
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
  HS_DTRACE_PROBE7(hotspot, method__return, get_java_tid(thread),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
      kname->bytes(), kname->utf8_length(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
      name->bytes(), name->utf8_length(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
      sig->bytes(), sig->utf8_length());
10739
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1005
#else /* USDT2 */
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1006
  HOTSPOT_METHOD_RETURN(
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1007
      get_java_tid(thread),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1008
      (char *) kname->bytes(), kname->utf8_length(),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1009
      (char *) name->bytes(), name->utf8_length(),
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1010
      (char *) sig->bytes(), sig->utf8_length());
91935236600e 7098194: integrate macosx-port changes
dcubed
parents: 10254
diff changeset
  1011
#endif /* USDT2 */
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
  return 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
// Finds receiver, CallInfo (i.e. receiver method), and calling bytecode)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
// for a call current in progress, i.e., arguments has been pushed on stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
// put callee has not been invoked yet.  Used by: resolve virtual/static,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
// vtable updates, etc.  Caller frame must be compiled.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
Handle SharedRuntime::find_callee_info(JavaThread* thread, Bytecodes::Code& bc, CallInfo& callinfo, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
  // last java frame on stack (which includes native call frames)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
  vframeStream vfst(thread, true);  // Do not skip and javaCalls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
  return find_callee_info_helper(thread, vfst, bc, callinfo, CHECK_(Handle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
// Finds receiver, CallInfo (i.e. receiver method), and calling bytecode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
// for a call current in progress, i.e., arguments has been pushed on stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
// but callee has not been invoked yet.  Caller frame must be compiled.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
Handle SharedRuntime::find_callee_info_helper(JavaThread* thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
                                              vframeStream& vfst,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
                                              Bytecodes::Code& bc,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
                                              CallInfo& callinfo, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
  Handle receiver;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  Handle nullHandle;  //create a handy null handle for exception returns
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  assert(!vfst.at_end(), "Java frame must exist");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
  // Find caller and bci from vframe
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
  methodHandle caller (THREAD, vfst.method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
  int          bci    = vfst.bci();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
  // Find bytecode
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1047
  Bytecode_invoke bytecode(caller, bci);
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1048
  bc = bytecode.java_code();
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1049
  int bytecode_index = bytecode.index();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
  // Find receiver for non-static call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
  if (bc != Bytecodes::_invokestatic) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
    // This register map must be update since we need to find the receiver for
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
    // compiled frames. The receiver might be in a register.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
    RegisterMap reg_map2(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
    frame stubFrame   = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
    // Caller-frame is a compiled frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
    frame callerFrame = stubFrame.sender(&reg_map2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1060
    methodHandle callee = bytecode.static_target(CHECK_(nullHandle));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
    if (callee.is_null()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
      THROW_(vmSymbols::java_lang_NoSuchMethodException(), nullHandle);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
    // Retrieve from a compiled argument list
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
    receiver = Handle(THREAD, callerFrame.retrieve_receiver(&reg_map2));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
    if (receiver.is_null()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
      THROW_(vmSymbols::java_lang_NullPointerException(), nullHandle);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
  // Resolve method. This is parameterized by bytecode.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
  constantPoolHandle constants (THREAD, caller->constants());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1074
  assert (receiver.is_null() || receiver->is_oop(), "wrong receiver");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
  LinkResolver::resolve_invoke(callinfo, receiver, constants, bytecode_index, bc, CHECK_(nullHandle));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
  // Check that the receiver klass is of the right subtype and that it is initialized for virtual calls
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1079
  if (bc != Bytecodes::_invokestatic && bc != Bytecodes::_invokedynamic) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1080
    assert(receiver.not_null(), "should have thrown exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
    KlassHandle receiver_klass (THREAD, receiver->klass());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
    klassOop rk = constants->klass_ref_at(bytecode_index, CHECK_(nullHandle));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
                            // klass is already loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
    KlassHandle static_receiver_klass (THREAD, rk);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
    assert(receiver_klass->is_subtype_of(static_receiver_klass()), "actual receiver must be subclass of static receiver klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
    if (receiver_klass->oop_is_instance()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
      if (instanceKlass::cast(receiver_klass())->is_not_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
        tty->print_cr("ERROR: Klass not yet initialized!!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1089
        receiver_klass.print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
      assert (!instanceKlass::cast(receiver_klass())->is_not_initialized(), "receiver_klass must be initialized");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1092
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1093
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
  return receiver;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
methodHandle SharedRuntime::find_callee_method(JavaThread* thread, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
  ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  // We need first to check if any Java activations (compiled, interpreted)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
  // exist on the stack since last JavaCall.  If not, we need
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
  // to get the target method from the JavaCall wrapper.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
  vframeStream vfst(thread, true);  // Do not skip any javaCalls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
  if (vfst.at_end()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
    // No Java frames were found on stack since we did the JavaCall.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
    // Hence the stack can only contain an entry_frame.  We need to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
    // find the target method from the stub frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
    RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
    frame fr = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
    assert(fr.is_runtime_frame(), "must be a runtimeStub");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
    fr = fr.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
    assert(fr.is_entry_frame(), "must be");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
    // fr is now pointing to the entry frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
    callee_method = methodHandle(THREAD, fr.entry_frame_call_wrapper()->callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
    assert(fr.entry_frame_call_wrapper()->receiver() == NULL || !callee_method->is_static(), "non-null receiver for static call??");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1118
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
    Bytecodes::Code bc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
    CallInfo callinfo;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
    find_callee_info_helper(thread, vfst, bc, callinfo, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
    callee_method = callinfo.selected_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
  assert(callee_method()->is_method(), "must be");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
// Resolves a call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
methodHandle SharedRuntime::resolve_helper(JavaThread *thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1130
                                           bool is_virtual,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1131
                                           bool is_optimized, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1132
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
  callee_method = resolve_sub_helper(thread, is_virtual, is_optimized, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
  if (JvmtiExport::can_hotswap_or_post_breakpoint()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
    int retry_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
    while (!HAS_PENDING_EXCEPTION && callee_method->is_old() &&
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4567
diff changeset
  1137
           callee_method->method_holder() != SystemDictionary::Object_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
      // If has a pending exception then there is no need to re-try to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
      // resolve this method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
      // If the method has been redefined, we need to try again.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
      // Hack: we have no way to update the vtables of arrays, so don't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
      // require that java.lang.Object has been updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
      // It is very unlikely that method is redefined more than 100 times
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
      // in the middle of resolve. If it is looping here more than 100 times
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
      // means then there could be a bug here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
      guarantee((retry_count++ < 100),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
                "Could not resolve to latest version of redefined method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
      // method is redefined in the middle of resolve so re-try.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
      callee_method = resolve_sub_helper(thread, is_virtual, is_optimized, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
  return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
// Resolves a call.  The compilers generate code for calls that go here
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
// and are patched with the real destination of the call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
methodHandle SharedRuntime::resolve_sub_helper(JavaThread *thread,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
                                           bool is_virtual,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
                                           bool is_optimized, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1161
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
  RegisterMap cbl_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
  frame caller_frame = thread->last_frame().sender(&cbl_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1166
  CodeBlob* caller_cb = caller_frame.cb();
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1167
  guarantee(caller_cb != NULL && caller_cb->is_nmethod(), "must be called from nmethod");
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1168
  nmethod* caller_nm = caller_cb->as_nmethod_or_null();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1169
  // make sure caller is not getting deoptimized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  // and removed before we are done with it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  // CLEANUP - with lazy deopt shouldn't need this lock
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1172
  nmethodLocker caller_lock(caller_nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
  // determine call info & receiver
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  // note: a) receiver is NULL for static calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  //       b) an exception is thrown if receiver is NULL for non-static calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
  CallInfo call_info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  Bytecodes::Code invoke_code = Bytecodes::_illegal;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
  Handle receiver = find_callee_info(thread, invoke_code,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
                                     call_info, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1182
  methodHandle callee_method = call_info.selected_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  assert((!is_virtual && invoke_code == Bytecodes::_invokestatic) ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
         ( is_virtual && invoke_code != Bytecodes::_invokestatic), "inconsistent bytecode");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
  // tracing/debugging/statistics
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  int *addr = (is_optimized) ? (&_resolve_opt_virtual_ctr) :
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
                (is_virtual) ? (&_resolve_virtual_ctr) :
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
                               (&_resolve_static_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
  Atomic::inc(addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
    ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
    tty->print("resolving %s%s (%s) call to",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
      (is_optimized) ? "optimized " : "", (is_virtual) ? "virtual" : "static",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
      Bytecodes::name(invoke_code));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
    callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
    tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1204
  // JSR 292
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1205
  // If the resolved method is a MethodHandle invoke target the call
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1206
  // site must be a MethodHandle call site.
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1207
  if (callee_method->is_method_handle_invoke()) {
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1208
    assert(caller_nm->is_method_handle_return(caller_frame.pc()), "must be MH call site");
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1209
  }
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1210
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
  // Compute entry points. This might require generation of C2I converter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
  // frames, so we cannot be holding any locks here. Furthermore, the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
  // computation of the entry points is independent of patching the call.  We
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
  // always return the entry-point, but we only patch the stub if the call has
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
  // not been deoptimized.  Return values: For a virtual call this is an
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  // (cached_oop, destination address) pair. For a static call/optimized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  // virtual this is just a destination address.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  StaticCallInfo static_call_info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  CompiledICInfo virtual_call_info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  // Make sure the callee nmethod does not get deoptimized and removed before
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
  // we are done patching the code.
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1224
  nmethod* callee_nm = callee_method->code();
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1225
  nmethodLocker nl_callee(callee_nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
#ifdef ASSERT
5046
27e801a857cb 6919934: JSR 292 needs to support x86 C1
twisti
parents: 4904
diff changeset
  1227
  address dest_entry_point = callee_nm == NULL ? 0 : callee_nm->entry_point(); // used below
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  if (is_virtual) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
    assert(receiver.not_null(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
    bool static_bound = call_info.resolved_method()->can_be_statically_bound();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
    KlassHandle h_klass(THREAD, receiver->klass());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
    CompiledIC::compute_monomorphic_entry(callee_method, h_klass,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
                     is_optimized, static_bound, virtual_call_info,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
                     CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
    // static call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
    CompiledStaticCall::compute_entry(callee_method, static_call_info);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
  // grab lock, check for deoptimization and potentially patch caller
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
    MutexLocker ml_patch(CompiledIC_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
    // Now that we are ready to patch if the methodOop was redefined then
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
    // don't update call site and let the caller retry.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
    if (!callee_method->is_old()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
      // We must not try to patch to jump to an already unloaded method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
      if (dest_entry_point != 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
        assert(CodeCache::find_blob(dest_entry_point) != NULL,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
               "should not unload nmethod while locked");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
      if (is_virtual) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
        CompiledIC* inline_cache = CompiledIC_before(caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
        if (inline_cache->is_clean()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
          inline_cache->set_to_monomorphic(virtual_call_info);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
        CompiledStaticCall* ssc = compiledStaticCall_before(caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
        if (ssc->is_clean()) ssc->set(static_call_info);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
  } // unlock CompiledIC_lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
// Inline caches exist only in compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
JRT_BLOCK_ENTRY(address, SharedRuntime::handle_wrong_method_ic_miss(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
  assert(stub_frame.is_runtime_frame(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
  frame caller_frame = stub_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
  assert(!caller_frame.is_interpreted_frame() && !caller_frame.is_entry_frame(), "unexpected frame");
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
  1282
  assert(!caller_frame.is_ricochet_frame(), "unexpected frame");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
#endif /* ASSERT */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  JRT_BLOCK
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
    callee_method = SharedRuntime::handle_ic_miss_helper(thread, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
    // Return methodOop through TLS
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
    thread->set_vm_result(callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
  JRT_BLOCK_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
  // return compiled code entry point after potential safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
  assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  return callee_method->verified_code_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
// Handle call site that has been made non-entrant
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
JRT_BLOCK_ENTRY(address, SharedRuntime::handle_wrong_method(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
  // 6243940 We might end up in here if the callee is deoptimized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
  // as we race to call it.  We don't want to take a safepoint if
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1301
  // the caller was interpreted because the caller frame will look
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
  // interpreted to the stack walkers and arguments are now
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
  // "compiled" so it is much better to make this transition
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
  // invisible to the stack walking code. The i2c path will
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
  // place the callee method in the callee_target. It is stashed
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
  // there because if we try and find the callee by normal means a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1307
  // safepoint is possible and have trouble gc'ing the compiled args.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
  RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
  frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1310
  assert(stub_frame.is_runtime_frame(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1311
  frame caller_frame = stub_frame.sender(&reg_map);
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1312
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1313
  // MethodHandle invokes don't have a CompiledIC and should always
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1314
  // simply redispatch to the callee_target.
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1315
  address   sender_pc = caller_frame.pc();
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1316
  CodeBlob* sender_cb = caller_frame.cb();
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1317
  nmethod*  sender_nm = sender_cb->as_nmethod_or_null();
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1318
  bool is_mh_invoke_via_adapter = false;  // Direct c2c call or via adapter?
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1319
  if (sender_nm != NULL && sender_nm->is_method_handle_return(sender_pc)) {
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1320
    // If the callee_target is set, then we have come here via an i2c
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1321
    // adapter.
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1322
    methodOop callee = thread->callee_target();
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1323
    if (callee != NULL) {
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1324
      assert(callee->is_method(), "sanity");
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1325
      is_mh_invoke_via_adapter = true;
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1326
    }
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1327
  }
4564
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1328
55dfb20908d0 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents: 3262
diff changeset
  1329
  if (caller_frame.is_interpreted_frame() ||
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1330
      caller_frame.is_entry_frame()       ||
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 9323
diff changeset
  1331
      caller_frame.is_ricochet_frame()    ||
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1332
      is_mh_invoke_via_adapter) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
    methodOop callee = thread->callee_target();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
    guarantee(callee != NULL && callee->is_method(), "bad handshake");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
    thread->set_vm_result(callee);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
    thread->set_callee_target(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
    return callee->get_c2i_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
  // Must be compiled to compiled path which is safe to stackwalk
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
  JRT_BLOCK
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
    // Force resolving of caller (if we called from compiled frame)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
    callee_method = SharedRuntime::reresolve_call_site(thread, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
    thread->set_vm_result(callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
  JRT_BLOCK_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
  // return compiled code entry point after potential safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
  assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
  return callee_method->verified_code_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
// resolve a static call and patch code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
JRT_BLOCK_ENTRY(address, SharedRuntime::resolve_static_call_C(JavaThread *thread ))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
  JRT_BLOCK
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
    callee_method = SharedRuntime::resolve_helper(thread, false, false, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
    thread->set_vm_result(callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
  JRT_BLOCK_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  // return compiled code entry point after potential safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
  assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
  return callee_method->verified_code_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
// resolve virtual call and update inline cache to monomorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
JRT_BLOCK_ENTRY(address, SharedRuntime::resolve_virtual_call_C(JavaThread *thread ))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
  JRT_BLOCK
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
    callee_method = SharedRuntime::resolve_helper(thread, true, false, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
    thread->set_vm_result(callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
  JRT_BLOCK_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
  // return compiled code entry point after potential safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
  assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
  return callee_method->verified_code_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
// Resolve a virtual call that can be statically bound (e.g., always
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
// monomorphic, so it has no inline cache).  Patch code to resolved target.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
JRT_BLOCK_ENTRY(address, SharedRuntime::resolve_opt_virtual_call_C(JavaThread *thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
  methodHandle callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
  JRT_BLOCK
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
    callee_method = SharedRuntime::resolve_helper(thread, true, true, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
    thread->set_vm_result(callee_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
  JRT_BLOCK_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
  // return compiled code entry point after potential safepoints
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
  assert(callee_method->verified_code_entry() != NULL, " Jump to zero!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
  return callee_method->verified_code_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
methodHandle SharedRuntime::handle_ic_miss_helper(JavaThread *thread, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
  CallInfo call_info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
  Bytecodes::Code bc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  // receiver is NULL for static calls. An exception is thrown for NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  // receivers for non-static calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
  Handle receiver = find_callee_info(thread, bc, call_info,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
                                     CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
  // Compiler1 can produce virtual call sites that can actually be statically bound
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
  // If we fell thru to below we would think that the site was going megamorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
  // when in fact the site can never miss. Worse because we'd think it was megamorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  // we'd try and do a vtable dispatch however methods that can be statically bound
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
  // don't have vtable entries (vtable_index < 0) and we'd blow up. So we force a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
  // reresolution of the  call site (as if we did a handle_wrong_method and not an
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
  // plain ic_miss) and the site will be converted to an optimized virtual call site
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  // never to miss again. I don't believe C2 will produce code like this but if it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
  // did this would still be the correct thing to do for it too, hence no ifdef.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
  if (call_info.resolved_method()->can_be_statically_bound()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
    methodHandle callee_method = SharedRuntime::reresolve_call_site(thread, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
    if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
      RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
      frame caller_frame = thread->last_frame().sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
      ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
      tty->print("converting IC miss to reresolve (%s) call to", Bytecodes::name(bc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
      callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
      tty->print_cr(" from pc: " INTPTR_FORMAT, caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
      tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
    return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  methodHandle callee_method = call_info.selected_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
  bool should_be_mono = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
  Atomic::inc(&_ic_miss_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
  // Statistics & Tracing
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
  if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
    ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
    tty->print("IC miss (%s) call to", Bytecodes::name(bc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
    callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
    tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  if (ICMissHistogram) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
    MutexLocker m(VMStatistic_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
    RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
    frame f = thread->last_frame().real_sender(&reg_map);// skip runtime stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
    // produce statistics under the lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
    trace_ic_miss(f.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
  // install an event collector so that when a vtable stub is created the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
  // profiler can be notified via a DYNAMIC_CODE_GENERATED event. The
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
  // event can't be posted when the stub is created as locks are held
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
  // - instead the event will be deferred until the event collector goes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
  // out of scope.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
  JvmtiDynamicCodeEventCollector event_collector;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
  // Update inline cache to megamorphic. Skip update if caller has been
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
  // made non-entrant or we are called from interpreted.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
  { MutexLocker ml_patch (CompiledIC_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
    RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
    frame caller_frame = thread->last_frame().sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
    CodeBlob* cb = caller_frame.cb();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
    if (cb->is_nmethod() && ((nmethod*)cb)->is_in_use()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
      // Not a non-entrant nmethod, so find inline_cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
      CompiledIC* inline_cache = CompiledIC_before(caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
      bool should_be_mono = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
      if (inline_cache->is_optimized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
        if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
          ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
          tty->print("OPTIMIZED IC miss (%s) call to", Bytecodes::name(bc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
          callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
          tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1476
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
        should_be_mono = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
        compiledICHolderOop ic_oop = (compiledICHolderOop) inline_cache->cached_oop();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
        if ( ic_oop != NULL && ic_oop->is_compiledICHolder()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
          if (receiver()->klass() == ic_oop->holder_klass()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
            // This isn't a real miss. We must have seen that compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
            // is now available and we want the call site converted to a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
            // monomorphic compiled call site.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1486
            // We can't assert for callee_method->code() != NULL because it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
            // could have been deoptimized in the meantime
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
            if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
              ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
              tty->print("FALSE IC miss (%s) converting to compiled call to", Bytecodes::name(bc));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
              callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
              tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
            should_be_mono = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
      if (should_be_mono) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
        // We have a path that was monomorphic but was going interpreted
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
        // and now we have (or had) a compiled entry. We correct the IC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
        // by using a new icBuffer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
        CompiledICInfo info;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1505
        KlassHandle receiver_klass(THREAD, receiver()->klass());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
        inline_cache->compute_monomorphic_entry(callee_method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
                                                receiver_klass,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1508
                                                inline_cache->is_optimized(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
                                                false,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
                                                info, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
        inline_cache->set_to_monomorphic(info);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
      } else if (!inline_cache->is_megamorphic() && !inline_cache->is_clean()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
        // Change to megamorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
        inline_cache->set_to_megamorphic(&call_info, bc, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
        // Either clean or megamorphic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
  } // Release CompiledIC_lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
  return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
// Resets a call-site in compiled code so it will get resolved again.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
// This routines handles both virtual call sites, optimized virtual call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
// sites, and static call sites. Typically used to change a call sites
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
// destination from compiled to interpreted.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
methodHandle SharedRuntime::reresolve_call_site(JavaThread *thread, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
  RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
  assert(stub_frame.is_runtime_frame(), "must be a runtimeStub");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
  frame caller = stub_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
  // Do nothing if the frame isn't a live compiled frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
  // nmethod could be deoptimized by the time we get here
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
  // so no update to the caller is needed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
  if (caller.is_compiled_frame() && !caller.is_deoptimized_frame()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
    address pc = caller.pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
    // Default call_addr is the location of the "basic" call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
    // Determine the address of the call we a reresolving. With
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
    // Inline Caches we will always find a recognizable call.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
    // With Inline Caches disabled we may or may not find a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
    // recognizable call. We will always find a call for static
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
    // calls and for optimized virtual calls. For vanilla virtual
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
    // calls it depends on the state of the UseInlineCaches switch.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
    // With Inline Caches disabled we can get here for a virtual call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
    // for two reasons:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
    //   1 - calling an abstract method. The vtable for abstract methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
    //       will run us thru handle_wrong_method and we will eventually
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
    //       end up in the interpreter to throw the ame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
    //   2 - a racing deoptimization. We could be doing a vanilla vtable
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
    //       call and between the time we fetch the entry address and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
    //       we jump to it the target gets deoptimized. Similar to 1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
    //       we will wind up in the interprter (thru a c2i with c2).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
    address call_addr = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
      // Get call instruction under lock because another thread may be
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
      // busy patching it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
      MutexLockerEx ml_patch(Patching_lock, Mutex::_no_safepoint_check_flag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
      // Location of call instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
      if (NativeCall::is_call_before(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
        NativeCall *ncall = nativeCall_before(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
        call_addr = ncall->instruction_address();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1572
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1573
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1574
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1575
    // Check for static or virtual call
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1576
    bool is_static_call = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1577
    nmethod* caller_nm = CodeCache::find_nmethod(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
    // Make sure nmethod doesn't get deoptimized and removed until
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1579
    // this is done with it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
    // CLEANUP - with lazy deopt shouldn't need this lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1581
    nmethodLocker nmlock(caller_nm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1582
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1583
    if (call_addr != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1584
      RelocIterator iter(caller_nm, call_addr, call_addr+1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1585
      int ret = iter.next(); // Get item
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1586
      if (ret) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1587
        assert(iter.addr() == call_addr, "must find call");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
        if (iter.type() == relocInfo::static_call_type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1589
          is_static_call = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
          assert(iter.type() == relocInfo::virtual_call_type ||
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
                 iter.type() == relocInfo::opt_virtual_call_type
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
                , "unexpected relocInfo. type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1594
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1595
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1596
        assert(!UseInlineCaches, "relocation info. must exist for this address");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
      // Cleaning the inline cache will force a new resolve. This is more robust
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
      // than directly setting it to the new destination, since resolving of calls
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
      // is always done through the same code path. (experience shows that it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
      // leads to very hard to track down bugs, if an inline cache gets updated
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
      // to a wrong method). It should not be performance critical, since the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
      // resolve is only done once.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
      MutexLocker ml(CompiledIC_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
      // We do not patch the call site if the nmethod has been made non-entrant
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1609
      // as it is a waste of time
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
      if (caller_nm->is_in_use()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
        if (is_static_call) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
          CompiledStaticCall* ssc= compiledStaticCall_at(call_addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
          ssc->set_to_clean();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1615
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
          // compiled, dispatched call (which used to call an interpreted method)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1617
          CompiledIC* inline_cache = CompiledIC_at(call_addr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
          inline_cache->set_to_clean();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1620
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1621
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1622
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1623
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1624
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1625
  methodHandle callee_method = find_callee_method(thread, CHECK_(methodHandle()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1626
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1627
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1628
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1629
  Atomic::inc(&_wrong_method_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1630
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1631
  if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1632
    ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1633
    tty->print("handle_wrong_method reresolving call to");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1634
    callee_method->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1635
    tty->print_cr(" code: " INTPTR_FORMAT, callee_method->code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1636
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1638
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
  return callee_method;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1641
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1642
// ---------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1643
// We are calling the interpreter via a c2i. Normally this would mean that
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1644
// we were called by a compiled method. However we could have lost a race
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1645
// where we went int -> i2c -> c2i and so the caller could in fact be
4753
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1646
// interpreted. If the caller is compiled we attempt to patch the caller
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1647
// so he no longer calls into the interpreter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1648
IRT_LEAF(void, SharedRuntime::fixup_callers_callsite(methodOopDesc* method, address caller_pc))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1649
  methodOop moop(method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1650
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1651
  address entry_point = moop->from_compiled_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1652
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
  // It's possible that deoptimization can occur at a call site which hasn't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
  // been resolved yet, in which case this function will be called from
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1655
  // an nmethod that has been patched for deopt and we can ignore the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
  // request for a fixup.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1657
  // Also it is possible that we lost a race in that from_compiled_entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
  // is now back to the i2c in that case we don't need to patch and if
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1659
  // we did we'd leap into space because the callsite needs to use
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1660
  // "to interpreter" stub in order to load up the methodOop. Don't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
  // ask me how I know this...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1663
  CodeBlob* cb = CodeCache::find_blob(caller_pc);
4753
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1664
  if (!cb->is_nmethod() || entry_point == moop->get_c2i_entry()) {
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1665
    return;
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1666
  }
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1667
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1668
  // The check above makes sure this is a nmethod.
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1669
  nmethod* nm = cb->as_nmethod_or_null();
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1670
  assert(nm, "must be");
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1671
10968
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1672
  // Get the return PC for the passed caller PC.
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1673
  address return_pc = caller_pc + frame::pc_return_offset;
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1674
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1675
  // Don't fixup method handle call sites as the executed method
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1676
  // handle adapters are doing the required MethodHandle chain work.
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1677
  if (nm->is_method_handle_return(return_pc)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1678
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1679
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1680
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1681
  // There is a benign race here. We could be attempting to patch to a compiled
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
  // entry point at the same time the callee is being deoptimized. If that is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1683
  // the case then entry_point may in fact point to a c2i and we'd patch the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1684
  // call site with the same old data. clear_code will set code() to NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1685
  // at the end of it. If we happen to see that NULL then we can skip trying
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1686
  // to patch. If we hit the window where the callee has a c2i in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1687
  // from_compiled_entry and the NULL isn't present yet then we lose the race
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1688
  // and patch the code with the same old data. Asi es la vida.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1689
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1690
  if (moop->code() == NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1691
4753
9e7bcf214f71 6921799: JSR 292 call sites should not be fixed-up
twisti
parents: 4752
diff changeset
  1692
  if (nm->is_in_use()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1693
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1694
    // Expect to find a native call there (unless it was no-inline cache vtable dispatch)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1695
    MutexLockerEx ml_patch(Patching_lock, Mutex::_no_safepoint_check_flag);
10968
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1696
    if (NativeCall::is_call_before(return_pc)) {
6f5d19d76c93 7101642: JSR 292: SIGSEGV in java.lang.invoke.MethodHandleImpl$FieldAccessor.getFieldI(Ljava/lang/Object;)I
twisti
parents: 10740
diff changeset
  1697
      NativeCall *call = nativeCall_before(return_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1698
      //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
      // bug 6281185. We might get here after resolving a call site to a vanilla
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1700
      // virtual call. Because the resolvee uses the verified entry it may then
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1701
      // see compiled code and attempt to patch the site by calling us. This would
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1702
      // then incorrectly convert the call site to optimized and its downhill from
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1703
      // there. If you're lucky you'll get the assert in the bugid, if not you've
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1704
      // just made a call site that could be megamorphic into a monomorphic site
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1705
      // for the rest of its life! Just another racing bug in the life of
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
      // fixup_callers_callsite ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
      //
5686
5435e77aa3df 6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents: 5420
diff changeset
  1708
      RelocIterator iter(nm, call->instruction_address(), call->next_instruction_address());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
      iter.next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
      assert(iter.has_current(), "must have a reloc at java call site");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1711
      relocInfo::relocType typ = iter.reloc()->type();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1712
      if ( typ != relocInfo::static_call_type &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1713
           typ != relocInfo::opt_virtual_call_type &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1714
           typ != relocInfo::static_stub_type) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1715
        return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1716
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1717
      address destination = call->destination();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
      if (destination != entry_point) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
        CodeBlob* callee = CodeCache::find_blob(destination);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
        // callee == cb seems weird. It means calling interpreter thru stub.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
        if (callee == cb || callee->is_adapter_blob()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
          // static call or optimized virtual
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
          if (TraceCallFixup) {
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1724
            tty->print("fixup callsite           at " INTPTR_FORMAT " to compiled code for", caller_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
            moop->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1726
            tty->print_cr(" to " INTPTR_FORMAT, entry_point);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
          call->set_destination_mt_safe(entry_point);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
          if (TraceCallFixup) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
            tty->print("failed to fixup callsite at " INTPTR_FORMAT " to compiled code for", caller_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1732
            moop->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
            tty->print_cr(" to " INTPTR_FORMAT, entry_point);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
          // assert is too strong could also be resolve destinations.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1736
          // assert(InlineCacheBuffer::contains(destination) || VtableStubs::contains(destination), "must be");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1739
          if (TraceCallFixup) {
4752
67a506670cd0 6921352: JSR 292 needs its own deopt handler
twisti
parents: 4750
diff changeset
  1740
            tty->print("already patched callsite at " INTPTR_FORMAT " to compiled code for", caller_pc);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
            moop->print_short_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1742
            tty->print_cr(" to " INTPTR_FORMAT, entry_point);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1745
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1746
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
IRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1748
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1749
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
// same as JVM_Arraycopy, but called directly from compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1751
JRT_ENTRY(void, SharedRuntime::slow_arraycopy_C(oopDesc* src,  jint src_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
                                                oopDesc* dest, jint dest_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
                                                jint length,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
                                                JavaThread* thread)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1755
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1756
  _slow_array_copy_ctr++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1757
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1758
  // Check if we have null pointers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1759
  if (src == NULL || dest == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1760
    THROW(vmSymbols::java_lang_NullPointerException());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1761
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1762
  // Do the copy.  The casts to arrayOop are necessary to the copy_array API,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1763
  // even though the copy_array API also performs dynamic checks to ensure
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1764
  // that src and dest are truly arrays (and are conformable).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1765
  // The copy_array mechanism is awkward and could be removed, but
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1766
  // the compilers don't call this function except as a last resort,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1767
  // so it probably doesn't matter.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1768
  Klass::cast(src->klass())->copy_array((arrayOopDesc*)src,  src_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1769
                                        (arrayOopDesc*)dest, dest_pos,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1770
                                        length, thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1771
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1772
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1773
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
char* SharedRuntime::generate_class_cast_message(
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1775
    JavaThread* thread, const char* objName) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1776
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1777
  // Get target class name from the checkcast instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1778
  vframeStream vfst(thread, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1779
  assert(!vfst.at_end(), "Java frame must exist");
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1780
  Bytecode_checkcast cc(vfst.method(), vfst.method()->bcp_from(vfst.bci()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
  Klass* targetKlass = Klass::cast(vfst.method()->constants()->klass_at(
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1782
    cc.index(), thread));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
  return generate_class_cast_message(objName, targetKlass->external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1786
char* SharedRuntime::generate_wrong_method_type_message(JavaThread* thread,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1787
                                                        oopDesc* required,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1788
                                                        oopDesc* actual) {
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1789
  if (TraceMethodHandles) {
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1790
    tty->print_cr("WrongMethodType thread="PTR_FORMAT" req="PTR_FORMAT" act="PTR_FORMAT"",
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1791
                  thread, required, actual);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1792
  }
8883
5569135acca3 6817525: turn on method handle functionality by default for JSR 292
twisti
parents: 8872
diff changeset
  1793
  assert(EnableInvokeDynamic, "");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1794
  oop singleKlass = wrong_method_type_is_for_single_argument(thread, required);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1795
  char* message = NULL;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1796
  if (singleKlass != NULL) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1797
    const char* objName = "argument or return value";
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1798
    if (actual != NULL) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1799
      // be flexible about the junk passed in:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1800
      klassOop ak = (actual->is_klass()
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1801
                     ? (klassOop)actual
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1802
                     : actual->klass());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1803
      objName = Klass::cast(ak)->external_name();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1804
    }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1805
    Klass* targetKlass = Klass::cast(required->is_klass()
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1806
                                     ? (klassOop)required
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1807
                                     : java_lang_Class::as_klassOop(required));
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1808
    message = generate_class_cast_message(objName, targetKlass->external_name());
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1809
  } else {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1810
    // %%% need to get the MethodType string, without messing around too much
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1811
    const char* desc = NULL;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1812
    // Get a signature from the invoke instruction
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1813
    const char* mhName = "method handle";
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1814
    const char* targetType = "the required signature";
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1815
    int targetArity = -1, mhArity = -1;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1816
    vframeStream vfst(thread, true);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1817
    if (!vfst.at_end()) {
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1818
      Bytecode_invoke call(vfst.method(), vfst.bci());
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1819
      methodHandle target;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1820
      {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1821
        EXCEPTION_MARK;
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7397
diff changeset
  1822
        target = call.static_target(THREAD);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1823
        if (HAS_PENDING_EXCEPTION) { CLEAR_PENDING_EXCEPTION; }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1824
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1825
      if (target.not_null()
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1826
          && target->is_method_handle_invoke()
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1827
          && required == target->method_handle_type()) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1828
        targetType = target->signature()->as_C_string();
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1829
        targetArity = ArgumentCount(target->signature()).size();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1830
      }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1831
    }
9323
20cc2230dc8a 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 9117
diff changeset
  1832
    KlassHandle kignore; int dmf_flags = 0;
20cc2230dc8a 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 9117
diff changeset
  1833
    methodHandle actual_method = MethodHandles::decode_method(actual, kignore, dmf_flags);
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1834
    if ((dmf_flags & ~(MethodHandles::_dmf_has_receiver |
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1835
                       MethodHandles::_dmf_does_dispatch |
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1836
                       MethodHandles::_dmf_from_interface)) != 0)
9323
20cc2230dc8a 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 9117
diff changeset
  1837
      actual_method = methodHandle();  // MH does extra binds, drops, etc.
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1838
    bool has_receiver = ((dmf_flags & MethodHandles::_dmf_has_receiver) != 0);
9323
20cc2230dc8a 7018355: JSR 292: VM crash in DefNewGeneration::copy_to_survivor_space
twisti
parents: 9117
diff changeset
  1839
    if (actual_method.not_null()) {
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1840
      mhName = actual_method->signature()->as_C_string();
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1841
      mhArity = ArgumentCount(actual_method->signature()).size();
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1842
      if (!actual_method->is_static())  mhArity += 1;
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1843
    } else if (java_lang_invoke_MethodHandle::is_instance(actual)) {
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1844
      oopDesc* mhType = java_lang_invoke_MethodHandle::type(actual);
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1845
      mhArity = java_lang_invoke_MethodType::ptype_count(mhType);
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1846
      stringStream st;
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1847
      java_lang_invoke_MethodType::print_signature(mhType, &st);
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1848
      mhName = st.as_string();
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1849
    }
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1850
    if (targetArity != -1 && targetArity != mhArity) {
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1851
      if (has_receiver && targetArity == mhArity-1)
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1852
        desc = " cannot be called without a receiver argument as ";
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1853
      else
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1854
        desc = " cannot be called with a different arity as ";
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1855
    }
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1856
    message = generate_class_cast_message(mhName, targetType,
9117
30d757743e56 7012087: JSR 292 Misleading exception message for a non-bound MH for a virtual method
jrose
parents: 8883
diff changeset
  1857
                                          desc != NULL ? desc :
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1858
                                          " cannot be called as ");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1859
  }
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1860
  if (TraceMethodHandles) {
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1861
    tty->print_cr("WrongMethodType => message=%s", message);
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1862
  }
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6418
diff changeset
  1863
  return message;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1864
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1865
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1866
oop SharedRuntime::wrong_method_type_is_for_single_argument(JavaThread* thr,
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1867
                                                            oopDesc* required) {
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1868
  if (required == NULL)  return NULL;
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4567
diff changeset
  1869
  if (required->klass() == SystemDictionary::Class_klass())
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1870
    return required;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1871
  if (required->is_klass())
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1872
    return Klass::cast(klassOop(required))->java_mirror();
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1873
  return NULL;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1874
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1875
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1876
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1877
char* SharedRuntime::generate_class_cast_message(
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2332
diff changeset
  1878
    const char* objName, const char* targetKlassName, const char* desc) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1879
  size_t msglen = strlen(objName) + strlen(desc) + strlen(targetKlassName) + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1880
226
e4a3ef4b2665 6631248: Memory problem when doing invalid type cast
kamg
parents: 1
diff changeset
  1881
  char* message = NEW_RESOURCE_ARRAY(char, msglen);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1882
  if (NULL == message) {
226
e4a3ef4b2665 6631248: Memory problem when doing invalid type cast
kamg
parents: 1
diff changeset
  1883
    // Shouldn't happen, but don't cause even more problems if it does
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1884
    message = const_cast<char*>(objName);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1885
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1886
    jio_snprintf(message, msglen, "%s%s%s", objName, desc, targetKlassName);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1887
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1888
  return message;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1889
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1890
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1891
JRT_LEAF(void, SharedRuntime::reguard_yellow_pages())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1892
  (void) JavaThread::current()->reguard_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1893
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1894
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1895
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1896
// Handles the uncommon case in locking, i.e., contention or an inflated lock.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1897
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1898
int SharedRuntime::_monitor_enter_ctr=0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1899
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1900
JRT_ENTRY_NO_ASYNC(void, SharedRuntime::complete_monitor_locking_C(oopDesc* _obj, BasicLock* lock, JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1901
  oop obj(_obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1902
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1903
  _monitor_enter_ctr++;             // monitor enter slow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1904
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1905
  if (PrintBiasedLockingStatistics) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1906
    Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1907
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1908
  Handle h_obj(THREAD, obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1909
  if (UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1910
    // Retry fast entry if bias is revoked to avoid unnecessary inflation
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1911
    ObjectSynchronizer::fast_enter(h_obj, lock, true, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1912
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1913
    ObjectSynchronizer::slow_enter(h_obj, lock, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1914
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1915
  assert(!HAS_PENDING_EXCEPTION, "Should have no exception here");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1916
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1917
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1918
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1919
int SharedRuntime::_monitor_exit_ctr=0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1920
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1921
// Handles the uncommon cases of monitor unlocking in compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1922
JRT_LEAF(void, SharedRuntime::complete_monitor_unlocking_C(oopDesc* _obj, BasicLock* lock))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1923
   oop obj(_obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1924
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1925
  _monitor_exit_ctr++;              // monitor exit slow
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1926
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1927
  Thread* THREAD = JavaThread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1928
  // I'm not convinced we need the code contained by MIGHT_HAVE_PENDING anymore
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1929
  // testing was unable to ever fire the assert that guarded it so I have removed it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1930
  assert(!HAS_PENDING_EXCEPTION, "Do we need code below anymore?");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1931
#undef MIGHT_HAVE_PENDING
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1932
#ifdef MIGHT_HAVE_PENDING
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1933
  // Save and restore any pending_exception around the exception mark.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1934
  // While the slow_exit must not throw an exception, we could come into
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1935
  // this routine with one set.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1936
  oop pending_excep = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1937
  const char* pending_file;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1938
  int pending_line;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1939
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1940
    pending_excep = PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1941
    pending_file  = THREAD->exception_file();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1942
    pending_line  = THREAD->exception_line();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1943
    CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1944
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1945
#endif /* MIGHT_HAVE_PENDING */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1946
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1947
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1948
    // Exit must be non-blocking, and therefore no exceptions can be thrown.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1949
    EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1950
    ObjectSynchronizer::slow_exit(obj, lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1951
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1952
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1953
#ifdef MIGHT_HAVE_PENDING
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1954
  if (pending_excep != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1955
    THREAD->set_pending_exception(pending_excep, pending_file, pending_line);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1956
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1957
#endif /* MIGHT_HAVE_PENDING */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1958
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1959
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1960
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1961
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1962
void SharedRuntime::print_statistics() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
  ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1964
  if (xtty != NULL)  xtty->head("statistics type='SharedRuntime'");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1965
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1966
  if (_monitor_enter_ctr ) tty->print_cr("%5d monitor enter slow",  _monitor_enter_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
  if (_monitor_exit_ctr  ) tty->print_cr("%5d monitor exit slow",   _monitor_exit_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1968
  if (_throw_null_ctr) tty->print_cr("%5d implicit null throw", _throw_null_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
  SharedRuntime::print_ic_miss_histogram();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1972
  if (CountRemovableExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
    if (_nof_removable_exceptions > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1974
      Unimplemented(); // this counter is not yet incremented
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1975
      tty->print_cr("Removable exceptions: %d", _nof_removable_exceptions);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1976
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1977
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1978
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1979
  // Dump the JRT_ENTRY counters
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1980
  if( _new_instance_ctr ) tty->print_cr("%5d new instance requires GC", _new_instance_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1981
  if( _new_array_ctr ) tty->print_cr("%5d new array requires GC", _new_array_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1982
  if( _multi1_ctr ) tty->print_cr("%5d multianewarray 1 dim", _multi1_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1983
  if( _multi2_ctr ) tty->print_cr("%5d multianewarray 2 dim", _multi2_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1984
  if( _multi3_ctr ) tty->print_cr("%5d multianewarray 3 dim", _multi3_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1985
  if( _multi4_ctr ) tty->print_cr("%5d multianewarray 4 dim", _multi4_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1986
  if( _multi5_ctr ) tty->print_cr("%5d multianewarray 5 dim", _multi5_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1987
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1988
  tty->print_cr("%5d inline cache miss in compiled", _ic_miss_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1989
  tty->print_cr("%5d wrong method", _wrong_method_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1990
  tty->print_cr("%5d unresolved static call site", _resolve_static_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1991
  tty->print_cr("%5d unresolved virtual call site", _resolve_virtual_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1992
  tty->print_cr("%5d unresolved opt virtual call site", _resolve_opt_virtual_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1993
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1994
  if( _mon_enter_stub_ctr ) tty->print_cr("%5d monitor enter stub", _mon_enter_stub_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1995
  if( _mon_exit_stub_ctr ) tty->print_cr("%5d monitor exit stub", _mon_exit_stub_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1996
  if( _mon_enter_ctr ) tty->print_cr("%5d monitor enter slow", _mon_enter_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1997
  if( _mon_exit_ctr ) tty->print_cr("%5d monitor exit slow", _mon_exit_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1998
  if( _partial_subtype_ctr) tty->print_cr("%5d slow partial subtype", _partial_subtype_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1999
  if( _jbyte_array_copy_ctr ) tty->print_cr("%5d byte array copies", _jbyte_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2000
  if( _jshort_array_copy_ctr ) tty->print_cr("%5d short array copies", _jshort_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2001
  if( _jint_array_copy_ctr ) tty->print_cr("%5d int array copies", _jint_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2002
  if( _jlong_array_copy_ctr ) tty->print_cr("%5d long array copies", _jlong_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2003
  if( _oop_array_copy_ctr ) tty->print_cr("%5d oop array copies", _oop_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2004
  if( _checkcast_array_copy_ctr ) tty->print_cr("%5d checkcast array copies", _checkcast_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2005
  if( _unsafe_array_copy_ctr ) tty->print_cr("%5d unsafe array copies", _unsafe_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2006
  if( _generic_array_copy_ctr ) tty->print_cr("%5d generic array copies", _generic_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2007
  if( _slow_array_copy_ctr ) tty->print_cr("%5d slow array copies", _slow_array_copy_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2008
  if( _find_handler_ctr ) tty->print_cr("%5d find exception handler", _find_handler_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2009
  if( _rethrow_ctr ) tty->print_cr("%5d rethrow handler", _rethrow_ctr );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2010
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2011
  AdapterHandlerLibrary::print_statistics();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2012
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2013
  if (xtty != NULL)  xtty->tail("statistics");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2014
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2015
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2016
inline double percent(int x, int y) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2017
  return 100.0 * x / MAX2(y, 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2018
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2019
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2020
class MethodArityHistogram {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2021
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2022
  enum { MAX_ARITY = 256 };
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2023
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2024
  static int _arity_histogram[MAX_ARITY];     // histogram of #args
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2025
  static int _size_histogram[MAX_ARITY];      // histogram of arg size in words
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2026
  static int _max_arity;                      // max. arity seen
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2027
  static int _max_size;                       // max. arg size seen
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2028
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2029
  static void add_method_to_histogram(nmethod* nm) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2030
    methodOop m = nm->method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2031
    ArgumentCount args(m->signature());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2032
    int arity   = args.size() + (m->is_static() ? 0 : 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2033
    int argsize = m->size_of_parameters();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2034
    arity   = MIN2(arity, MAX_ARITY-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2035
    argsize = MIN2(argsize, MAX_ARITY-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2036
    int count = nm->method()->compiled_invocation_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2037
    _arity_histogram[arity]  += count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2038
    _size_histogram[argsize] += count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2039
    _max_arity = MAX2(_max_arity, arity);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2040
    _max_size  = MAX2(_max_size, argsize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2041
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2042
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2043
  void print_histogram_helper(int n, int* histo, const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2044
    const int N = MIN2(5, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2045
    tty->print_cr("\nHistogram of call arity (incl. rcvr, calls to compiled methods only):");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2046
    double sum = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2047
    double weighted_sum = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2048
    int i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2049
    for (i = 0; i <= n; i++) { sum += histo[i]; weighted_sum += i*histo[i]; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2050
    double rest = sum;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2051
    double percent = sum / 100;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2052
    for (i = 0; i <= N; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2053
      rest -= histo[i];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2054
      tty->print_cr("%4d: %7d (%5.1f%%)", i, histo[i], histo[i] / percent);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2055
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2056
    tty->print_cr("rest: %7d (%5.1f%%))", (int)rest, rest / percent);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2057
    tty->print_cr("(avg. %s = %3.1f, max = %d)", name, weighted_sum / sum, n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2058
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2059
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2060
  void print_histogram() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2061
    tty->print_cr("\nHistogram of call arity (incl. rcvr, calls to compiled methods only):");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2062
    print_histogram_helper(_max_arity, _arity_histogram, "arity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2063
    tty->print_cr("\nSame for parameter size (in words):");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2064
    print_histogram_helper(_max_size, _size_histogram, "size");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2065
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2066
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2067
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
 public:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
  MethodArityHistogram() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
    MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
    _max_arity = _max_size = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
    for (int i = 0; i < MAX_ARITY; i++) _arity_histogram[i] = _size_histogram [i] = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2073
    CodeCache::nmethods_do(add_method_to_histogram);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
    print_histogram();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
int MethodArityHistogram::_arity_histogram[MethodArityHistogram::MAX_ARITY];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2079
int MethodArityHistogram::_size_histogram[MethodArityHistogram::MAX_ARITY];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2080
int MethodArityHistogram::_max_arity;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2081
int MethodArityHistogram::_max_size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
void SharedRuntime::print_call_statistics(int comp_total) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2084
  tty->print_cr("Calls from compiled code:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2085
  int total  = _nof_normal_calls + _nof_interface_calls + _nof_static_calls;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2086
  int mono_c = _nof_normal_calls - _nof_optimized_calls - _nof_megamorphic_calls;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2087
  int mono_i = _nof_interface_calls - _nof_optimized_interface_calls - _nof_megamorphic_interface_calls;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2088
  tty->print_cr("\t%9d   (%4.1f%%) total non-inlined   ", total, percent(total, total));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2089
  tty->print_cr("\t%9d   (%4.1f%%) virtual calls       ", _nof_normal_calls, percent(_nof_normal_calls, total));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2090
  tty->print_cr("\t  %9d  (%3.0f%%)   inlined          ", _nof_inlined_calls, percent(_nof_inlined_calls, _nof_normal_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2091
  tty->print_cr("\t  %9d  (%3.0f%%)   optimized        ", _nof_optimized_calls, percent(_nof_optimized_calls, _nof_normal_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2092
  tty->print_cr("\t  %9d  (%3.0f%%)   monomorphic      ", mono_c, percent(mono_c, _nof_normal_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2093
  tty->print_cr("\t  %9d  (%3.0f%%)   megamorphic      ", _nof_megamorphic_calls, percent(_nof_megamorphic_calls, _nof_normal_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2094
  tty->print_cr("\t%9d   (%4.1f%%) interface calls     ", _nof_interface_calls, percent(_nof_interface_calls, total));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
  tty->print_cr("\t  %9d  (%3.0f%%)   inlined          ", _nof_inlined_interface_calls, percent(_nof_inlined_interface_calls, _nof_interface_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2096
  tty->print_cr("\t  %9d  (%3.0f%%)   optimized        ", _nof_optimized_interface_calls, percent(_nof_optimized_interface_calls, _nof_interface_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
  tty->print_cr("\t  %9d  (%3.0f%%)   monomorphic      ", mono_i, percent(mono_i, _nof_interface_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2098
  tty->print_cr("\t  %9d  (%3.0f%%)   megamorphic      ", _nof_megamorphic_interface_calls, percent(_nof_megamorphic_interface_calls, _nof_interface_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
  tty->print_cr("\t%9d   (%4.1f%%) static/special calls", _nof_static_calls, percent(_nof_static_calls, total));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
  tty->print_cr("\t  %9d  (%3.0f%%)   inlined          ", _nof_inlined_static_calls, percent(_nof_inlined_static_calls, _nof_static_calls));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
  tty->print_cr("Note 1: counter updates are not MT-safe.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
  tty->print_cr("Note 2: %% in major categories are relative to total non-inlined calls;");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2104
  tty->print_cr("        %% in nested categories are relative to their category");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2105
  tty->print_cr("        (and thus add up to more than 100%% with inlining)");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2106
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2107
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2108
  MethodArityHistogram h;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2109
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2110
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2111
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2112
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2113
// A simple wrapper class around the calling convention information
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2114
// that allows sharing of adapters for the same calling convention.
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2115
class AdapterFingerPrint : public CHeapObj {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2116
 private:
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2117
  union {
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2118
    int  _compact[3];
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2119
    int* _fingerprint;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2120
  } _value;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2121
  int _length; // A negative length indicates the fingerprint is in the compact form,
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2122
               // Otherwise _value._fingerprint is the array.
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2123
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2124
  // Remap BasicTypes that are handled equivalently by the adapters.
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2125
  // These are correct for the current system but someday it might be
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2126
  // necessary to make this mapping platform dependent.
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2127
  static BasicType adapter_encoding(BasicType in) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2128
    assert((~0xf & in) == 0, "must fit in 4 bits");
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2129
    switch(in) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2130
      case T_BOOLEAN:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2131
      case T_BYTE:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2132
      case T_SHORT:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2133
      case T_CHAR:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2134
        // There are all promoted to T_INT in the calling convention
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2135
        return T_INT;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2136
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2137
      case T_OBJECT:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2138
      case T_ARRAY:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2139
#ifdef _LP64
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5334
diff changeset
  2140
        return T_LONG;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2141
#else
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5334
diff changeset
  2142
        return T_INT;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2143
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2144
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2145
      case T_INT:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2146
      case T_LONG:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2147
      case T_FLOAT:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2148
      case T_DOUBLE:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2149
      case T_VOID:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2150
        return in;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2151
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2152
      default:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2153
        ShouldNotReachHere();
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2154
        return T_CONFLICT;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2155
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2156
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2157
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2158
 public:
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2159
  AdapterFingerPrint(int total_args_passed, BasicType* sig_bt) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2160
    // The fingerprint is based on the BasicType signature encoded
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2161
    // into an array of ints with eight entries per int.
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2162
    int* ptr;
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2163
    int len = (total_args_passed + 7) >> 3;
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2164
    if (len <= (int)(sizeof(_value._compact) / sizeof(int))) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2165
      _value._compact[0] = _value._compact[1] = _value._compact[2] = 0;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2166
      // Storing the signature encoded as signed chars hits about 98%
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2167
      // of the time.
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2168
      _length = -len;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2169
      ptr = _value._compact;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2170
    } else {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2171
      _length = len;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2172
      _value._fingerprint = NEW_C_HEAP_ARRAY(int, _length);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2173
      ptr = _value._fingerprint;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2174
    }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2175
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2176
    // Now pack the BasicTypes with 8 per int
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2177
    int sig_index = 0;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2178
    for (int index = 0; index < len; index++) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2179
      int value = 0;
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2180
      for (int byte = 0; byte < 8; byte++) {
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2181
        if (sig_index < total_args_passed) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2182
          value = (value << 4) | adapter_encoding(sig_bt[sig_index++]);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2183
        }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2184
      }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2185
      ptr[index] = value;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2186
    }
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2187
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2188
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2189
  ~AdapterFingerPrint() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2190
    if (_length > 0) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2191
      FREE_C_HEAP_ARRAY(int, _value._fingerprint);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2192
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2193
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2194
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2195
  int value(int index) {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2196
    if (_length < 0) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2197
      return _value._compact[index];
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2198
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2199
    return _value._fingerprint[index];
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2200
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2201
  int length() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2202
    if (_length < 0) return -_length;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2203
    return _length;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2204
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2205
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2206
  bool is_compact() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2207
    return _length <= 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2208
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2209
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2210
  unsigned int compute_hash() {
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2211
    int hash = 0;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2212
    for (int i = 0; i < length(); i++) {
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2213
      int v = value(i);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2214
      hash = (hash << 8) ^ v ^ (hash >> 5);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2215
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2216
    return (unsigned int)hash;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2217
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2218
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2219
  const char* as_string() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2220
    stringStream st;
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2221
    st.print("0x");
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2222
    for (int i = 0; i < length(); i++) {
10254
406448a00c51 7071427: AdapterFingerPrint can hold 8 entries per int
never
parents: 10004
diff changeset
  2223
      st.print("%08x", value(i));
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2224
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2225
    return st.as_string();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2226
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2227
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2228
  bool equals(AdapterFingerPrint* other) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2229
    if (other->_length != _length) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2230
      return false;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2231
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2232
    if (_length < 0) {
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2233
      return _value._compact[0] == other->_value._compact[0] &&
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2234
             _value._compact[1] == other->_value._compact[1] &&
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2235
             _value._compact[2] == other->_value._compact[2];
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2236
    } else {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2237
      for (int i = 0; i < _length; i++) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2238
        if (_value._fingerprint[i] != other->_value._fingerprint[i]) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2239
          return false;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2240
        }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2241
      }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2242
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2243
    return true;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2244
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2245
};
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2246
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2247
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2248
// A hashtable mapping from AdapterFingerPrints to AdapterHandlerEntries
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2249
class AdapterHandlerTable : public BasicHashtable {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2250
  friend class AdapterHandlerTableIterator;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2251
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2252
 private:
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2253
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2254
#ifndef PRODUCT
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2255
  static int _lookups; // number of calls to lookup
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2256
  static int _buckets; // number of buckets checked
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2257
  static int _equals;  // number of buckets checked with matching hash
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2258
  static int _hits;    // number of successful lookups
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2259
  static int _compact; // number of equals calls with compact signature
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2260
#endif
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2261
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2262
  AdapterHandlerEntry* bucket(int i) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2263
    return (AdapterHandlerEntry*)BasicHashtable::bucket(i);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2264
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2265
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2266
 public:
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2267
  AdapterHandlerTable()
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2268
    : BasicHashtable(293, sizeof(AdapterHandlerEntry)) { }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2269
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2270
  // Create a new entry suitable for insertion in the table
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2271
  AdapterHandlerEntry* new_entry(AdapterFingerPrint* fingerprint, address i2c_entry, address c2i_entry, address c2i_unverified_entry) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2272
    AdapterHandlerEntry* entry = (AdapterHandlerEntry*)BasicHashtable::new_entry(fingerprint->compute_hash());
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2273
    entry->init(fingerprint, i2c_entry, c2i_entry, c2i_unverified_entry);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2274
    return entry;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2275
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2276
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2277
  // Insert an entry into the table
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2278
  void add(AdapterHandlerEntry* entry) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2279
    int index = hash_to_index(entry->hash());
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2280
    add_entry(index, entry);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2281
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2282
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2283
  void free_entry(AdapterHandlerEntry* entry) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2284
    entry->deallocate();
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2285
    BasicHashtable::free_entry(entry);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2286
  }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2287
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2288
  // Find a entry with the same fingerprint if it exists
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2289
  AdapterHandlerEntry* lookup(int total_args_passed, BasicType* sig_bt) {
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2290
    NOT_PRODUCT(_lookups++);
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2291
    AdapterFingerPrint fp(total_args_passed, sig_bt);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2292
    unsigned int hash = fp.compute_hash();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2293
    int index = hash_to_index(hash);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2294
    for (AdapterHandlerEntry* e = bucket(index); e != NULL; e = e->next()) {
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2295
      NOT_PRODUCT(_buckets++);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2296
      if (e->hash() == hash) {
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2297
        NOT_PRODUCT(_equals++);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2298
        if (fp.equals(e->fingerprint())) {
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2299
#ifndef PRODUCT
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2300
          if (fp.is_compact()) _compact++;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2301
          _hits++;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2302
#endif
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2303
          return e;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2304
        }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2305
      }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2306
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2307
    return NULL;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2308
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2309
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2310
#ifndef PRODUCT
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2311
  void print_statistics() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2312
    ResourceMark rm;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2313
    int longest = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2314
    int empty = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2315
    int total = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2316
    int nonempty = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2317
    for (int index = 0; index < table_size(); index++) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2318
      int count = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2319
      for (AdapterHandlerEntry* e = bucket(index); e != NULL; e = e->next()) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2320
        count++;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2321
      }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2322
      if (count != 0) nonempty++;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2323
      if (count == 0) empty++;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2324
      if (count > longest) longest = count;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2325
      total += count;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2326
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2327
    tty->print_cr("AdapterHandlerTable: empty %d longest %d total %d average %f",
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2328
                  empty, longest, total, total / (double)nonempty);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2329
    tty->print_cr("AdapterHandlerTable: lookups %d buckets %d equals %d hits %d compact %d",
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2330
                  _lookups, _buckets, _equals, _hits, _compact);
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2331
  }
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2332
#endif
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2333
};
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2334
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2335
4904
186345703249 6926697: "optimized" VM build failed: The type "AdapterHandlerTableIterator" is incomplete
kvn
parents: 4898
diff changeset
  2336
#ifndef PRODUCT
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2337
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2338
int AdapterHandlerTable::_lookups;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2339
int AdapterHandlerTable::_buckets;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2340
int AdapterHandlerTable::_equals;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2341
int AdapterHandlerTable::_hits;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2342
int AdapterHandlerTable::_compact;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2343
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2344
#endif
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2345
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2346
class AdapterHandlerTableIterator : public StackObj {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2347
 private:
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2348
  AdapterHandlerTable* _table;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2349
  int _index;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2350
  AdapterHandlerEntry* _current;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2351
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2352
  void scan() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2353
    while (_index < _table->table_size()) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2354
      AdapterHandlerEntry* a = _table->bucket(_index);
5687
b862d1f189bd 6930772: JSR 292 needs to support SPARC C1
twisti
parents: 5686
diff changeset
  2355
      _index++;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2356
      if (a != NULL) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2357
        _current = a;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2358
        return;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2359
      }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2360
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2361
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2362
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2363
 public:
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2364
  AdapterHandlerTableIterator(AdapterHandlerTable* table): _table(table), _index(0), _current(NULL) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2365
    scan();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2366
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2367
  bool has_next() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2368
    return _current != NULL;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2369
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2370
  AdapterHandlerEntry* next() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2371
    if (_current != NULL) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2372
      AdapterHandlerEntry* result = _current;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2373
      _current = _current->next();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2374
      if (_current == NULL) scan();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2375
      return result;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2376
    } else {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2377
      return NULL;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2378
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2379
  }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2380
};
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2381
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2382
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2383
// ---------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2384
// Implementation of AdapterHandlerLibrary
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2385
AdapterHandlerTable* AdapterHandlerLibrary::_adapters = NULL;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2386
AdapterHandlerEntry* AdapterHandlerLibrary::_abstract_method_handler = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2387
const int AdapterHandlerLibrary_size = 16*K;
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2388
BufferBlob* AdapterHandlerLibrary::_buffer = NULL;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2389
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2390
BufferBlob* AdapterHandlerLibrary::buffer_blob() {
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2391
  // Should be called only when AdapterHandlerLibrary_lock is active.
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2392
  if (_buffer == NULL) // Initialize lazily
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2393
      _buffer = BufferBlob::create("adapters", AdapterHandlerLibrary_size);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2394
  return _buffer;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2395
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2396
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2397
void AdapterHandlerLibrary::initialize() {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2398
  if (_adapters != NULL) return;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2399
  _adapters = new AdapterHandlerTable();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2400
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2401
  // Create a special handler for abstract methods.  Abstract methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2402
  // are never compiled so an i2c entry is somewhat meaningless, but
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2403
  // fill it in with something appropriate just in case.  Pass handle
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2404
  // wrong method for the c2i transitions.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2405
  address wrong_method = SharedRuntime::get_handle_wrong_method_stub();
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2406
  _abstract_method_handler = AdapterHandlerLibrary::new_entry(new AdapterFingerPrint(0, NULL),
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2407
                                                              StubRoutines::throw_AbstractMethodError_entry(),
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2408
                                                              wrong_method, wrong_method);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2409
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2410
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2411
AdapterHandlerEntry* AdapterHandlerLibrary::new_entry(AdapterFingerPrint* fingerprint,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2412
                                                      address i2c_entry,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2413
                                                      address c2i_entry,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2414
                                                      address c2i_unverified_entry) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2415
  return _adapters->new_entry(fingerprint, i2c_entry, c2i_entry, c2i_unverified_entry);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2416
}
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2417
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2418
AdapterHandlerEntry* AdapterHandlerLibrary::get_adapter(methodHandle method) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2419
  // Use customized signature handler.  Need to lock around updates to
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2420
  // the AdapterHandlerTable (it is not safe for concurrent readers
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2421
  // and a single writer: this could be fixed if it becomes a
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2422
  // problem).
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2423
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2424
  // Get the address of the ic_miss handlers before we grab the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2425
  // AdapterHandlerLibrary_lock. This fixes bug 6236259 which
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2426
  // was caused by the initialization of the stubs happening
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2427
  // while we held the lock and then notifying jvmti while
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2428
  // holding it. This just forces the initialization to be a little
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2429
  // earlier.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2430
  address ic_miss = SharedRuntime::get_ic_miss_stub();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2431
  assert(ic_miss != NULL, "must have handler");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2432
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2433
  ResourceMark rm;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2434
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2435
  NOT_PRODUCT(int insts_size);
5050
47ecd86932ce 6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents: 5046
diff changeset
  2436
  AdapterBlob* B = NULL;
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2437
  AdapterHandlerEntry* entry = NULL;
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2438
  AdapterFingerPrint* fingerprint = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2439
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2440
    MutexLocker mu(AdapterHandlerLibrary_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2441
    // make sure data structure is initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2442
    initialize();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2443
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2444
    if (method->is_abstract()) {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2445
      return _abstract_method_handler;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2446
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2447
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2448
    // Fill in the signature array, for the calling-convention call.
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2449
    int total_args_passed = method->size_of_parameters(); // All args on stack
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2450
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2451
    BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, total_args_passed);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2452
    VMRegPair* regs   = NEW_RESOURCE_ARRAY(VMRegPair, total_args_passed);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2453
    int i = 0;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2454
    if (!method->is_static())  // Pass in receiver first
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2455
      sig_bt[i++] = T_OBJECT;
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2456
    for (SignatureStream ss(method->signature()); !ss.at_return_type(); ss.next()) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2457
      sig_bt[i++] = ss.type();  // Collect remaining bits of signature
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2458
      if (ss.type() == T_LONG || ss.type() == T_DOUBLE)
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2459
        sig_bt[i++] = T_VOID;   // Longs & doubles take 2 Java slots
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2460
    }
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2461
    assert(i == total_args_passed, "");
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2462
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2463
    // Lookup method signature's fingerprint
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2464
    entry = _adapters->lookup(total_args_passed, sig_bt);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2465
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2466
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2467
    AdapterHandlerEntry* shared_entry = NULL;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2468
    if (VerifyAdapterSharing && entry != NULL) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2469
      shared_entry = entry;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2470
      entry = NULL;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2471
    }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2472
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2473
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2474
    if (entry != NULL) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2475
      return entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2476
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2477
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2478
    // Get a description of the compiled java calling convention and the largest used (VMReg) stack slot usage
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2479
    int comp_args_on_stack = SharedRuntime::java_calling_convention(sig_bt, regs, total_args_passed, false);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2480
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2481
    // Make a C heap allocated version of the fingerprint to store in the adapter
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2482
    fingerprint = new AdapterFingerPrint(total_args_passed, sig_bt);
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2483
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2484
    // Create I2C & C2I handlers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2485
5050
47ecd86932ce 6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents: 5046
diff changeset
  2486
    BufferBlob* buf = buffer_blob(); // the temporary code buffer in CodeCache
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2487
    if (buf != NULL) {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2488
      CodeBuffer buffer(buf);
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2489
      short buffer_locs[20];
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2490
      buffer.insts()->initialize_shared_locs((relocInfo*)buffer_locs,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2491
                                             sizeof(buffer_locs)/sizeof(relocInfo));
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2492
      MacroAssembler _masm(&buffer);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2493
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2494
      entry = SharedRuntime::generate_i2c2i_adapters(&_masm,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2495
                                                     total_args_passed,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2496
                                                     comp_args_on_stack,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2497
                                                     sig_bt,
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2498
                                                     regs,
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2499
                                                     fingerprint);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2500
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2501
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2502
      if (VerifyAdapterSharing) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2503
        if (shared_entry != NULL) {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2504
          assert(shared_entry->compare_code(buf->code_begin(), buffer.insts_size(), total_args_passed, sig_bt),
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2505
                 "code must match");
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2506
          // Release the one just created and return the original
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2507
          _adapters->free_entry(entry);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2508
          return shared_entry;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2509
        } else  {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2510
          entry->save_code(buf->code_begin(), buffer.insts_size(), total_args_passed, sig_bt);
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2511
        }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2512
      }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2513
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2514
5050
47ecd86932ce 6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents: 5046
diff changeset
  2515
      B = AdapterBlob::create(&buffer);
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2516
      NOT_PRODUCT(insts_size = buffer.insts_size());
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2517
    }
201
7893b7ce2d8d 6650373: Assert in methodOopDesc::make_adapters()
kvn
parents: 189
diff changeset
  2518
    if (B == NULL) {
7893b7ce2d8d 6650373: Assert in methodOopDesc::make_adapters()
kvn
parents: 189
diff changeset
  2519
      // CodeCache is full, disable compilation
7893b7ce2d8d 6650373: Assert in methodOopDesc::make_adapters()
kvn
parents: 189
diff changeset
  2520
      // Ought to log this but compile log is only per compile thread
7893b7ce2d8d 6650373: Assert in methodOopDesc::make_adapters()
kvn
parents: 189
diff changeset
  2521
      // and we're some non descript Java thread.
4750
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4749
diff changeset
  2522
      MutexUnlocker mu(AdapterHandlerLibrary_lock);
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4749
diff changeset
  2523
      CompileBroker::handle_full_code_cache();
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2524
      return NULL; // Out of CodeCache space
201
7893b7ce2d8d 6650373: Assert in methodOopDesc::make_adapters()
kvn
parents: 189
diff changeset
  2525
    }
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2526
    entry->relocate(B->content_begin());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2527
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2528
    // debugging suppport
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2529
    if (PrintAdapterHandlers) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2530
      tty->cr();
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2531
      tty->print_cr("i2c argument handler #%d for: %s %s (fingerprint = %s, %d bytes generated)",
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2532
                    _adapters->number_of_entries(), (method->is_static() ? "static" : "receiver"),
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2533
                    method->signature()->as_C_string(), fingerprint->as_string(), insts_size );
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2534
      tty->print_cr("c2i argument handler starts at %p",entry->get_c2i_entry());
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2535
      Disassembler::decode(entry->get_i2c_entry(), entry->get_i2c_entry() + insts_size);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2536
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2537
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2538
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2539
    _adapters->add(entry);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2540
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2541
  // Outside of the lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2542
  if (B != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2543
    char blob_id[256];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2544
    jio_snprintf(blob_id,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2545
                 sizeof(blob_id),
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2546
                 "%s(%s)@" PTR_FORMAT,
5050
47ecd86932ce 6934494: JSR 292 MethodHandles adapters should be generated into their own CodeBlob
twisti
parents: 5046
diff changeset
  2547
                 B->name(),
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2548
                 fingerprint->as_string(),
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2549
                 B->content_begin());
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2550
    Forte::register_stub(blob_id, B->content_begin(), B->content_end());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2551
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2552
    if (JvmtiExport::should_post_dynamic_code_generated()) {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2553
      JvmtiExport::post_dynamic_code_generated(blob_id, B->content_begin(), B->content_end());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2554
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2555
  }
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2556
  return entry;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2557
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2558
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2559
void AdapterHandlerEntry::relocate(address new_base) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2560
    ptrdiff_t delta = new_base - _i2c_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2561
    _i2c_entry += delta;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2562
    _c2i_entry += delta;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2563
    _c2i_unverified_entry += delta;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2564
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2565
4755
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2566
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2567
void AdapterHandlerEntry::deallocate() {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2568
  delete _fingerprint;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2569
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2570
  if (_saved_code) FREE_C_HEAP_ARRAY(unsigned char, _saved_code);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2571
  if (_saved_sig)  FREE_C_HEAP_ARRAY(Basictype, _saved_sig);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2572
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2573
}
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2574
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2575
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2576
#ifdef ASSERT
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2577
// Capture the code before relocation so that it can be compared
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2578
// against other versions.  If the code is captured after relocation
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2579
// then relative instructions won't be equivalent.
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2580
void AdapterHandlerEntry::save_code(unsigned char* buffer, int length, int total_args_passed, BasicType* sig_bt) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2581
  _saved_code = NEW_C_HEAP_ARRAY(unsigned char, length);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2582
  _code_length = length;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2583
  memcpy(_saved_code, buffer, length);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2584
  _total_args_passed = total_args_passed;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2585
  _saved_sig = NEW_C_HEAP_ARRAY(BasicType, _total_args_passed);
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2586
  memcpy(_saved_sig, sig_bt, _total_args_passed * sizeof(BasicType));
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2587
}
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2588
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2589
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2590
bool AdapterHandlerEntry::compare_code(unsigned char* buffer, int length, int total_args_passed, BasicType* sig_bt) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2591
  if (length != _code_length) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2592
    return false;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2593
  }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2594
  for (int i = 0; i < length; i++) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2595
    if (buffer[i] != _saved_code[i]) {
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2596
      return false;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2597
    }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2598
  }
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2599
  return true;
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2600
}
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2601
#endif
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2602
eee57ea6d910 6921922: fix for 6911204 breaks tagged stack interpreter
never
parents: 4753
diff changeset
  2603
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2604
// Create a native wrapper for this native method.  The wrapper converts the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2605
// java compiled calling convention to the native convention, handlizes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2606
// arguments, and transitions to native.  On return from the native we transition
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2607
// back to java blocking if a safepoint is in progress.
8872
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2608
nmethod *AdapterHandlerLibrary::create_native_wrapper(methodHandle method, int compile_id) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2609
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2610
  nmethod* nm = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2611
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2612
  assert(method->has_native_function(), "must have something valid to call!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2613
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2614
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2615
    // perform the work while holding the lock, but perform any printing outside the lock
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2616
    MutexLocker mu(AdapterHandlerLibrary_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2617
    // See if somebody beat us to it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2618
    nm = method->code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2619
    if (nm) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2620
      return nm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2621
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2622
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2623
    ResourceMark rm;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2624
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2625
    BufferBlob*  buf = buffer_blob(); // the temporary code buffer in CodeCache
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2626
    if (buf != NULL) {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2627
      CodeBuffer buffer(buf);
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2628
      double locs_buf[20];
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2629
      buffer.insts()->initialize_shared_locs((relocInfo*)locs_buf, sizeof(locs_buf) / sizeof(relocInfo));
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2630
      MacroAssembler _masm(&buffer);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2631
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2632
      // Fill in the signature array, for the calling-convention call.
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2633
      int total_args_passed = method->size_of_parameters();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2634
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2635
      BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType,total_args_passed);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2636
      VMRegPair*   regs = NEW_RESOURCE_ARRAY(VMRegPair,total_args_passed);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2637
      int i=0;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2638
      if( !method->is_static() )  // Pass in receiver first
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2639
        sig_bt[i++] = T_OBJECT;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2640
      SignatureStream ss(method->signature());
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2641
      for( ; !ss.at_return_type(); ss.next()) {
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2642
        sig_bt[i++] = ss.type();  // Collect remaining bits of signature
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2643
        if( ss.type() == T_LONG || ss.type() == T_DOUBLE )
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2644
          sig_bt[i++] = T_VOID;   // Longs & doubles take 2 Java slots
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2645
      }
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2646
      assert( i==total_args_passed, "" );
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2647
      BasicType ret_type = ss.type();
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2648
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2649
      // Now get the compiled-Java layout as input arguments
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2650
      int comp_args_on_stack;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2651
      comp_args_on_stack = SharedRuntime::java_calling_convention(sig_bt, regs, total_args_passed, false);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2652
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2653
      // Generate the compiled-to-native wrapper code
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2654
      nm = SharedRuntime::generate_native_wrapper(&_masm,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2655
                                                  method,
8872
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2656
                                                  compile_id,
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2657
                                                  total_args_passed,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2658
                                                  comp_args_on_stack,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2659
                                                  sig_bt,regs,
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2660
                                                  ret_type);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2661
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2662
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2663
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2664
  // Must unlock before calling set_code
6270
d628c75fbf48 6976372: # assert(_owner == Thread::current()) failed: invariant
never
parents: 6176
diff changeset
  2665
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2666
  // Install the generated code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2667
  if (nm != NULL) {
8872
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2668
    if (PrintCompilation) {
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2669
      ttyLocker ttyl;
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2670
      CompileTask::print_compilation(tty, nm, method->is_static() ? "(static)" : "");
36680c58660e 7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents: 8495
diff changeset
  2671
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2672
    method->set_code(method, nm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2673
    nm->post_compiled_method_load_event();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2674
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2675
    // CodeCache is full, disable compilation
4750
71fd601907dc 4360113: Evict nmethods when code cache gets full
kvn
parents: 4749
diff changeset
  2676
    CompileBroker::handle_full_code_cache();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2677
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2678
  return nm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2679
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2680
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2681
#ifdef HAVE_DTRACE_H
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2682
// Create a dtrace nmethod for this method.  The wrapper converts the
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2683
// java compiled calling convention to the native convention, makes a dummy call
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2684
// (actually nops for the size of the call instruction, which become a trap if
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2685
// probe is enabled). The returns to the caller. Since this all looks like a
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2686
// leaf no thread transition is needed.
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2687
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2688
nmethod *AdapterHandlerLibrary::create_dtrace_nmethod(methodHandle method) {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2689
  ResourceMark rm;
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2690
  nmethod* nm = NULL;
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2691
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2692
  if (PrintCompilation) {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2693
    ttyLocker ttyl;
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2694
    tty->print("---   n%s  ");
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2695
    method->print_short_name(tty);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2696
    if (method->is_static()) {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2697
      tty->print(" (static)");
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2698
    }
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2699
    tty->cr();
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2700
  }
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2701
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2702
  {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2703
    // perform the work while holding the lock, but perform any printing
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2704
    // outside the lock
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2705
    MutexLocker mu(AdapterHandlerLibrary_lock);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2706
    // See if somebody beat us to it
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2707
    nm = method->code();
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2708
    if (nm) {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2709
      return nm;
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2710
    }
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2711
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2712
    ResourceMark rm;
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2713
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2714
    BufferBlob*  buf = buffer_blob(); // the temporary code buffer in CodeCache
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2715
    if (buf != NULL) {
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6270
diff changeset
  2716
      CodeBuffer buffer(buf);
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2717
      // Need a few relocation entries
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2718
      double locs_buf[20];
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2719
      buffer.insts()->initialize_shared_locs(
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2720
        (relocInfo*)locs_buf, sizeof(locs_buf) / sizeof(relocInfo));
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2721
      MacroAssembler _masm(&buffer);
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2722
2732
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2723
      // Generate the compiled-to-native wrapper code
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2724
      nm = SharedRuntime::generate_dtrace_nmethod(&_masm, method);
3ab85419f523 6834177: Running jsynprog on Solaris Nevada can cause JVM crash
kvn
parents: 2534
diff changeset
  2725
    }
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2726
  }
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2727
  return nm;
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2728
}
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2729
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2730
// the dtrace method needs to convert java lang string to utf8 string.
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2731
void SharedRuntime::get_utf(oopDesc* src, address dst) {
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2732
  typeArrayOop jlsValue  = java_lang_String::value(src);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2733
  int          jlsOffset = java_lang_String::offset(src);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2734
  int          jlsLen    = java_lang_String::length(src);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2735
  jchar*       jlsPos    = (jlsLen == 0) ? NULL :
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2736
                                           jlsValue->char_at_addr(jlsOffset);
8107
78e5bd944384 7016023: Enable building ARM and PPC from src/closed repository
bobv
parents: 8076
diff changeset
  2737
  assert(typeArrayKlass::cast(jlsValue->klass())->element_type() == T_CHAR, "compressed string");
363
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2738
  (void) UNICODE::as_utf8(jlsPos, jlsLen, (char *)dst, max_dtrace_string_size);
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2739
}
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2740
#endif // ndef HAVE_DTRACE_H
99d43e8a76ad 6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents: 235
diff changeset
  2741
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2742
// -------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2743
// Java-Java calling convention
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2744
// (what you use when Java calls Java)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2745
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2746
//------------------------------name_for_receiver----------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2747
// For a given signature, return the VMReg for parameter 0.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2748
VMReg SharedRuntime::name_for_receiver() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2749
  VMRegPair regs;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2750
  BasicType sig_bt = T_OBJECT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2751
  (void) java_calling_convention(&sig_bt, &regs, 1, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2752
  // Return argument 0 register.  In the LP64 build pointers
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2753
  // take 2 registers, but the VM wants only the 'main' name.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2754
  return regs.first();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2755
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2756
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  2757
VMRegPair *SharedRuntime::find_callee_arguments(Symbol* sig, bool has_receiver, int* arg_size) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2758
  // This method is returning a data structure allocating as a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2759
  // ResourceObject, so do not put any ResourceMarks in here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2760
  char *s = sig->as_C_string();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2761
  int len = (int)strlen(s);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2762
  *s++; len--;                  // Skip opening paren
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2763
  char *t = s+len;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2764
  while( *(--t) != ')' ) ;      // Find close paren
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2765
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2766
  BasicType *sig_bt = NEW_RESOURCE_ARRAY( BasicType, 256 );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2767
  VMRegPair *regs = NEW_RESOURCE_ARRAY( VMRegPair, 256 );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2768
  int cnt = 0;
4567
7fc02fbe5c7a 6893268: additional dynamic language related optimizations in C2
twisti
parents: 4564
diff changeset
  2769
  if (has_receiver) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2770
    sig_bt[cnt++] = T_OBJECT; // Receiver is argument 0; not in signature
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2771
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2772
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2773
  while( s < t ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2774
    switch( *s++ ) {            // Switch on signature character
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2775
    case 'B': sig_bt[cnt++] = T_BYTE;    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2776
    case 'C': sig_bt[cnt++] = T_CHAR;    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2777
    case 'D': sig_bt[cnt++] = T_DOUBLE;  sig_bt[cnt++] = T_VOID; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2778
    case 'F': sig_bt[cnt++] = T_FLOAT;   break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2779
    case 'I': sig_bt[cnt++] = T_INT;     break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2780
    case 'J': sig_bt[cnt++] = T_LONG;    sig_bt[cnt++] = T_VOID; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2781
    case 'S': sig_bt[cnt++] = T_SHORT;   break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2782
    case 'Z': sig_bt[cnt++] = T_BOOLEAN; break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2783
    case 'V': sig_bt[cnt++] = T_VOID;    break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2784
    case 'L':                   // Oop
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2785
      while( *s++ != ';'  ) ;   // Skip signature
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2786
      sig_bt[cnt++] = T_OBJECT;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2787
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2788
    case '[': {                 // Array
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2789
      do {                      // Skip optional size
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2790
        while( *s >= '0' && *s <= '9' ) s++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2791
      } while( *s++ == '[' );   // Nested arrays?
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2792
      // Skip element type
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2793
      if( s[-1] == 'L' )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2794
        while( *s++ != ';'  ) ; // Skip signature
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2795
      sig_bt[cnt++] = T_ARRAY;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2796
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2797
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2798
    default : ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2799
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2800
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2801
  assert( cnt < 256, "grow table size" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2802
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2803
  int comp_args_on_stack;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2804
  comp_args_on_stack = java_calling_convention(sig_bt, regs, cnt, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2805
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2806
  // the calling convention doesn't count out_preserve_stack_slots so
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2807
  // we must add that in to get "true" stack offsets.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2808
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2809
  if (comp_args_on_stack) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2810
    for (int i = 0; i < cnt; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2811
      VMReg reg1 = regs[i].first();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2812
      if( reg1->is_stack()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2813
        // Yuck
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2814
        reg1 = reg1->bias(out_preserve_stack_slots());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2815
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2816
      VMReg reg2 = regs[i].second();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2817
      if( reg2->is_stack()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2818
        // Yuck
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2819
        reg2 = reg2->bias(out_preserve_stack_slots());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2820
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2821
      regs[i].set_pair(reg2, reg1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2822
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2823
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2824
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2825
  // results
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2826
  *arg_size = cnt;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2827
  return regs;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2828
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2829
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2830
// OSR Migration Code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2831
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2832
// This code is used convert interpreter frames into compiled frames.  It is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2833
// called from very start of a compiled OSR nmethod.  A temp array is
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2834
// allocated to hold the interesting bits of the interpreter frame.  All
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2835
// active locks are inflated to allow them to move.  The displaced headers and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2836
// active interpeter locals are copied into the temp buffer.  Then we return
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2837
// back to the compiled code.  The compiled code then pops the current
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2838
// interpreter frame off the stack and pushes a new compiled frame.  Then it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2839
// copies the interpreter locals and displaced headers where it wants.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2840
// Finally it calls back to free the temp buffer.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2841
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2842
// All of this is done NOT at any Safepoint, nor is any safepoint or GC allowed.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2843
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2844
JRT_LEAF(intptr_t*, SharedRuntime::OSR_migration_begin( JavaThread *thread) )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2845
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2846
#ifdef IA64
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2847
  ShouldNotReachHere(); // NYI
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2848
#endif /* IA64 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2849
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2850
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2851
  // This code is dependent on the memory layout of the interpreter local
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2852
  // array and the monitors. On all of our platforms the layout is identical
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2853
  // so this code is shared. If some platform lays the their arrays out
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2854
  // differently then this code could move to platform specific code or
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2855
  // the code here could be modified to copy items one at a time using
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2856
  // frame accessor methods and be platform independent.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2857
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2858
  frame fr = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2859
  assert( fr.is_interpreted_frame(), "" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2860
  assert( fr.interpreter_frame_expression_stack_size()==0, "only handle empty stacks" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2861
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2862
  // Figure out how many monitors are active.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2863
  int active_monitor_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2864
  for( BasicObjectLock *kptr = fr.interpreter_frame_monitor_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2865
       kptr < fr.interpreter_frame_monitor_begin();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2866
       kptr = fr.next_monitor_in_interpreter_frame(kptr) ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2867
    if( kptr->obj() != NULL ) active_monitor_count++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2868
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2869
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2870
  // QQQ we could place number of active monitors in the array so that compiled code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2871
  // could double check it.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2872
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2873
  methodOop moop = fr.interpreter_frame_method();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2874
  int max_locals = moop->max_locals();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2875
  // Allocate temp buffer, 1 word per local & 2 per active monitor
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2876
  int buf_size_words = max_locals + active_monitor_count*2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2877
  intptr_t *buf = NEW_C_HEAP_ARRAY(intptr_t,buf_size_words);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2878
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2879
  // Copy the locals.  Order is preserved so that loading of longs works.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2880
  // Since there's no GC I can copy the oops blindly.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2881
  assert( sizeof(HeapWord)==sizeof(intptr_t), "fix this code");
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 5334
diff changeset
  2882
  Copy::disjoint_words((HeapWord*)fr.interpreter_frame_local_at(max_locals-1),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2883
                       (HeapWord*)&buf[0],
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2884
                       max_locals);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2885
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2886
  // Inflate locks.  Copy the displaced headers.  Be careful, there can be holes.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2887
  int i = max_locals;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2888
  for( BasicObjectLock *kptr2 = fr.interpreter_frame_monitor_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2889
       kptr2 < fr.interpreter_frame_monitor_begin();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2890
       kptr2 = fr.next_monitor_in_interpreter_frame(kptr2) ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2891
    if( kptr2->obj() != NULL) {         // Avoid 'holes' in the monitor array
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2892
      BasicLock *lock = kptr2->lock();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2893
      // Inflate so the displaced header becomes position-independent
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2894
      if (lock->displaced_header()->is_unlocked())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2895
        ObjectSynchronizer::inflate_helper(kptr2->obj());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2896
      // Now the displaced header is free to move
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2897
      buf[i++] = (intptr_t)lock->displaced_header();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2898
      buf[i++] = (intptr_t)kptr2->obj();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2899
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2900
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2901
  assert( i - max_locals == active_monitor_count*2, "found the expected number of monitors" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2902
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2903
  return buf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2904
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2905
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2906
JRT_LEAF(void, SharedRuntime::OSR_migration_end( intptr_t* buf) )
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2907
  FREE_C_HEAP_ARRAY(intptr_t,buf);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2908
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2909
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2910
bool AdapterHandlerLibrary::contains(CodeBlob* b) {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2911
  AdapterHandlerTableIterator iter(_adapters);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2912
  while (iter.has_next()) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2913
    AdapterHandlerEntry* a = iter.next();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2914
    if ( b == CodeCache::find_blob(a->get_i2c_entry()) ) return true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2916
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2917
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2918
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2919
void AdapterHandlerLibrary::print_handler_on(outputStream* st, CodeBlob* b) {
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2920
  AdapterHandlerTableIterator iter(_adapters);
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2921
  while (iter.has_next()) {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2922
    AdapterHandlerEntry* a = iter.next();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2923
    if ( b == CodeCache::find_blob(a->get_i2c_entry()) ) {
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2924
      st->print("Adapter for signature: ");
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2925
      st->print_cr("%s i2c: " INTPTR_FORMAT " c2i: " INTPTR_FORMAT " c2iUV: " INTPTR_FORMAT,
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2926
                   a->fingerprint()->as_string(),
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2927
                   a->get_i2c_entry(), a->get_c2i_entry(), a->get_c2i_unverified_entry());
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2928
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2929
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2930
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2931
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2932
  assert(false, "Should have found handler");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2933
}
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2934
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2935
#ifndef PRODUCT
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5924
diff changeset
  2936
4735
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2937
void AdapterHandlerLibrary::print_statistics() {
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2938
  _adapters->print_statistics();
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2939
}
3d4e4ec0df67 6911204: generated adapters with large signatures can fill up the code cache
never
parents: 4571
diff changeset
  2940
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2941
#endif /* PRODUCT */