hotspot/src/share/vm/c1/c1_Runtime1.cpp
author vlivanov
Fri, 18 Dec 2015 20:23:26 +0300
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child 35543 0961315f4016
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8071374: -XX:+PrintAssembly -XX:+PrintSignatureHandlers crash fastdebug VM with assert(limit == __null || limit <= nm->code_end()) in RelocIterator::initialize Reviewed-by: kvn, iklam, shade
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/*
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 * Copyright (c) 1999, 2015, 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 "asm/codeBuffer.hpp"
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#include "c1/c1_CodeStubs.hpp"
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#include "c1/c1_Defs.hpp"
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#include "c1/c1_FrameMap.hpp"
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#include "c1/c1_LIRAssembler.hpp"
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#include "c1/c1_MacroAssembler.hpp"
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#include "c1/c1_Runtime1.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/codeBlob.hpp"
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#include "code/codeCacheExtensions.hpp"
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#include "code/compiledIC.hpp"
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#include "code/pcDesc.hpp"
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#include "code/scopeDesc.hpp"
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#include "code/vtableStubs.hpp"
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#include "compiler/disassembler.hpp"
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#include "gc/shared/barrierSet.hpp"
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#include "gc/shared/collectedHeap.hpp"
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#include "interpreter/bytecode.hpp"
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#include "interpreter/interpreter.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/objArrayKlass.hpp"
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#include "oops/oop.inline.hpp"
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#include "runtime/atomic.inline.hpp"
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#include "runtime/biasedLocking.hpp"
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#include "runtime/compilationPolicy.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/threadCritical.hpp"
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#include "runtime/vframe.hpp"
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#include "runtime/vframeArray.hpp"
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#include "runtime/vm_version.hpp"
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#include "utilities/copy.hpp"
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#include "utilities/events.hpp"
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// Implementation of StubAssembler
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StubAssembler::StubAssembler(CodeBuffer* code, const char * name, int stub_id) : C1_MacroAssembler(code) {
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  _name = name;
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  _must_gc_arguments = false;
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  _frame_size = no_frame_size;
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  _num_rt_args = 0;
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  _stub_id = stub_id;
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}
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void StubAssembler::set_info(const char* name, bool must_gc_arguments) {
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  _name = name;
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  _must_gc_arguments = must_gc_arguments;
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}
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void StubAssembler::set_frame_size(int size) {
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  if (_frame_size == no_frame_size) {
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    _frame_size = size;
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  }
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  assert(_frame_size == size, "can't change the frame size");
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}
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void StubAssembler::set_num_rt_args(int args) {
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  if (_num_rt_args == 0) {
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    _num_rt_args = args;
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  }
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  assert(_num_rt_args == args, "can't change the number of args");
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}
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// Implementation of Runtime1
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CodeBlob* Runtime1::_blobs[Runtime1::number_of_ids];
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const char *Runtime1::_blob_names[] = {
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  RUNTIME1_STUBS(STUB_NAME, LAST_STUB_NAME)
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};
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#ifndef PRODUCT
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// statistics
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int Runtime1::_generic_arraycopy_cnt = 0;
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int Runtime1::_primitive_arraycopy_cnt = 0;
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int Runtime1::_oop_arraycopy_cnt = 0;
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int Runtime1::_generic_arraycopystub_cnt = 0;
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int Runtime1::_arraycopy_slowcase_cnt = 0;
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int Runtime1::_arraycopy_checkcast_cnt = 0;
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int Runtime1::_arraycopy_checkcast_attempt_cnt = 0;
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int Runtime1::_new_type_array_slowcase_cnt = 0;
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int Runtime1::_new_object_array_slowcase_cnt = 0;
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int Runtime1::_new_instance_slowcase_cnt = 0;
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int Runtime1::_new_multi_array_slowcase_cnt = 0;
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int Runtime1::_monitorenter_slowcase_cnt = 0;
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int Runtime1::_monitorexit_slowcase_cnt = 0;
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int Runtime1::_patch_code_slowcase_cnt = 0;
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int Runtime1::_throw_range_check_exception_count = 0;
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int Runtime1::_throw_index_exception_count = 0;
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int Runtime1::_throw_div0_exception_count = 0;
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int Runtime1::_throw_null_pointer_exception_count = 0;
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int Runtime1::_throw_class_cast_exception_count = 0;
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int Runtime1::_throw_incompatible_class_change_error_count = 0;
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int Runtime1::_throw_array_store_exception_count = 0;
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int Runtime1::_throw_count = 0;
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static int _byte_arraycopy_stub_cnt = 0;
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static int _short_arraycopy_stub_cnt = 0;
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static int _int_arraycopy_stub_cnt = 0;
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static int _long_arraycopy_stub_cnt = 0;
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static int _oop_arraycopy_stub_cnt = 0;
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address Runtime1::arraycopy_count_address(BasicType type) {
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  switch (type) {
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  case T_BOOLEAN:
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  case T_BYTE:   return (address)&_byte_arraycopy_stub_cnt;
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  case T_CHAR:
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  case T_SHORT:  return (address)&_short_arraycopy_stub_cnt;
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  case T_FLOAT:
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  case T_INT:    return (address)&_int_arraycopy_stub_cnt;
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  case T_DOUBLE:
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  case T_LONG:   return (address)&_long_arraycopy_stub_cnt;
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  case T_ARRAY:
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  case T_OBJECT: return (address)&_oop_arraycopy_stub_cnt;
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  default:
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    ShouldNotReachHere();
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    return NULL;
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  }
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}
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#endif
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// Simple helper to see if the caller of a runtime stub which
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// entered the VM has been deoptimized
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static bool caller_is_deopted() {
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  JavaThread* thread = JavaThread::current();
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  RegisterMap reg_map(thread, false);
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  frame runtime_frame = thread->last_frame();
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  frame caller_frame = runtime_frame.sender(&reg_map);
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  assert(caller_frame.is_compiled_frame(), "must be compiled");
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  return caller_frame.is_deoptimized_frame();
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}
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// Stress deoptimization
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static void deopt_caller() {
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  if ( !caller_is_deopted()) {
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    JavaThread* thread = JavaThread::current();
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    RegisterMap reg_map(thread, false);
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    frame runtime_frame = thread->last_frame();
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    frame caller_frame = runtime_frame.sender(&reg_map);
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    Deoptimization::deoptimize_frame(thread, caller_frame.id());
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    assert(caller_is_deopted(), "Must be deoptimized");
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  }
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}
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void Runtime1::generate_blob_for(BufferBlob* buffer_blob, StubID id) {
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  assert(0 <= id && id < number_of_ids, "illegal stub id");
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  ResourceMark rm;
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  // create code buffer for code storage
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  CodeBuffer code(buffer_blob);
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  OopMapSet* oop_maps;
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  int frame_size;
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  bool must_gc_arguments;
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  if (!CodeCacheExtensions::skip_compiler_support()) {
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    // bypass useless code generation
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    Compilation::setup_code_buffer(&code, 0);
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    // create assembler for code generation
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    StubAssembler* sasm = new StubAssembler(&code, name_for(id), id);
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    // generate code for runtime stub
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    oop_maps = generate_code_for(id, sasm);
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    assert(oop_maps == NULL || sasm->frame_size() != no_frame_size,
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           "if stub has an oop map it must have a valid frame size");
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#ifdef ASSERT
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    // Make sure that stubs that need oopmaps have them
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    switch (id) {
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      // These stubs don't need to have an oopmap
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    case dtrace_object_alloc_id:
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    case g1_pre_barrier_slow_id:
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    case g1_post_barrier_slow_id:
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    case slow_subtype_check_id:
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    case fpu2long_stub_id:
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    case unwind_exception_id:
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    case counter_overflow_id:
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#if defined(SPARC) || defined(PPC32)
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    case handle_exception_nofpu_id:  // Unused on sparc
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#endif
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      break;
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      // All other stubs should have oopmaps
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    default:
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      assert(oop_maps != NULL, "must have an oopmap");
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    }
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#endif
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    // align so printing shows nop's instead of random code at the end (SimpleStubs are aligned)
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    sasm->align(BytesPerWord);
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    // make sure all code is in code buffer
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    sasm->flush();
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    frame_size = sasm->frame_size();
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    must_gc_arguments = sasm->must_gc_arguments();
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  } else {
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    /* ignored values */
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    oop_maps = NULL;
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    frame_size = 0;
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    must_gc_arguments = false;
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  }
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  // create blob - distinguish a few special cases
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  CodeBlob* blob = RuntimeStub::new_runtime_stub(name_for(id),
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                                                 &code,
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                                                 CodeOffsets::frame_never_safe,
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                                                 frame_size,
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                                                 oop_maps,
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                                                 must_gc_arguments);
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  // install blob
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  assert(blob != NULL, "blob must exist");
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  _blobs[id] = blob;
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}
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void Runtime1::initialize(BufferBlob* blob) {
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  // platform-dependent initialization
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  initialize_pd();
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  // generate stubs
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  for (int id = 0; id < number_of_ids; id++) generate_blob_for(blob, (StubID)id);
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  // printing
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#ifndef PRODUCT
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  if (PrintSimpleStubs) {
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    ResourceMark rm;
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    for (int id = 0; id < number_of_ids; id++) {
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      _blobs[id]->print();
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      if (_blobs[id]->oop_maps() != NULL) {
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        _blobs[id]->oop_maps()->print();
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      }
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    }
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  }
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#endif
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}
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CodeBlob* Runtime1::blob_for(StubID id) {
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  assert(0 <= id && id < number_of_ids, "illegal stub id");
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  return _blobs[id];
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}
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const char* Runtime1::name_for(StubID id) {
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  assert(0 <= id && id < number_of_ids, "illegal stub id");
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  return _blob_names[id];
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}
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const char* Runtime1::name_for_address(address entry) {
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  for (int id = 0; id < number_of_ids; id++) {
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    if (entry == entry_for((StubID)id)) return name_for((StubID)id);
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  }
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#define FUNCTION_CASE(a, f) \
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  if ((intptr_t)a == CAST_FROM_FN_PTR(intptr_t, f))  return #f
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  FUNCTION_CASE(entry, os::javaTimeMillis);
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  FUNCTION_CASE(entry, os::javaTimeNanos);
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  FUNCTION_CASE(entry, SharedRuntime::OSR_migration_end);
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  FUNCTION_CASE(entry, SharedRuntime::d2f);
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  FUNCTION_CASE(entry, SharedRuntime::d2i);
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  FUNCTION_CASE(entry, SharedRuntime::d2l);
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  FUNCTION_CASE(entry, SharedRuntime::dcos);
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  FUNCTION_CASE(entry, SharedRuntime::dexp);
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  FUNCTION_CASE(entry, SharedRuntime::dlog);
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  FUNCTION_CASE(entry, SharedRuntime::dlog10);
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  FUNCTION_CASE(entry, SharedRuntime::dpow);
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  FUNCTION_CASE(entry, SharedRuntime::drem);
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  FUNCTION_CASE(entry, SharedRuntime::dsin);
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  FUNCTION_CASE(entry, SharedRuntime::dtan);
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  FUNCTION_CASE(entry, SharedRuntime::f2i);
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  FUNCTION_CASE(entry, SharedRuntime::f2l);
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  FUNCTION_CASE(entry, SharedRuntime::frem);
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  FUNCTION_CASE(entry, SharedRuntime::l2d);
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  FUNCTION_CASE(entry, SharedRuntime::l2f);
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  FUNCTION_CASE(entry, SharedRuntime::ldiv);
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  FUNCTION_CASE(entry, SharedRuntime::lmul);
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  FUNCTION_CASE(entry, SharedRuntime::lrem);
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  FUNCTION_CASE(entry, SharedRuntime::lrem);
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  FUNCTION_CASE(entry, SharedRuntime::dtrace_method_entry);
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  FUNCTION_CASE(entry, SharedRuntime::dtrace_method_exit);
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  FUNCTION_CASE(entry, is_instance_of);
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  FUNCTION_CASE(entry, trace_block_entry);
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#ifdef TRACE_HAVE_INTRINSICS
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  FUNCTION_CASE(entry, TRACE_TIME_METHOD);
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#endif
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  FUNCTION_CASE(entry, StubRoutines::updateBytesCRC32());
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  FUNCTION_CASE(entry, StubRoutines::dexp());
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  FUNCTION_CASE(entry, StubRoutines::dlog());
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  FUNCTION_CASE(entry, StubRoutines::dpow());
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  FUNCTION_CASE(entry, StubRoutines::dsin());
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  FUNCTION_CASE(entry, StubRoutines::dcos());
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#undef FUNCTION_CASE
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  // Soft float adds more runtime names.
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  return pd_name_for_address(entry);
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}
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JRT_ENTRY(void, Runtime1::new_instance(JavaThread* thread, Klass* klass))
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  NOT_PRODUCT(_new_instance_slowcase_cnt++;)
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  assert(klass->is_klass(), "not a class");
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  instanceKlassHandle h(thread, klass);
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  h->check_valid_for_instantiation(true, CHECK);
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  // make sure klass is initialized
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  h->initialize(CHECK);
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  // allocate instance and return via TLS
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  oop obj = h->allocate_instance(CHECK);
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parents:
diff changeset
   343
  thread->set_vm_result(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   344
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   345
489c9b5090e2 Initial load
duke
parents:
diff changeset
   346
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   347
JRT_ENTRY(void, Runtime1::new_type_array(JavaThread* thread, Klass* klass, jint length))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   348
  NOT_PRODUCT(_new_type_array_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   349
  // Note: no handle for klass needed since they are not used
489c9b5090e2 Initial load
duke
parents:
diff changeset
   350
  //       anymore after new_typeArray() and no GC can happen before.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   351
  //       (This may have to change if this code changes!)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   352
  assert(klass->is_klass(), "not a class");
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
   353
  BasicType elt_type = TypeArrayKlass::cast(klass)->element_type();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   354
  oop obj = oopFactory::new_typeArray(elt_type, length, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   355
  thread->set_vm_result(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   356
  // This is pretty rare but this runtime patch is stressful to deoptimization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   357
  // if we deoptimize here so force a deopt to stress the path.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   358
  if (DeoptimizeALot) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   359
    deopt_caller();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   360
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   361
489c9b5090e2 Initial load
duke
parents:
diff changeset
   362
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   363
489c9b5090e2 Initial load
duke
parents:
diff changeset
   364
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   365
JRT_ENTRY(void, Runtime1::new_object_array(JavaThread* thread, Klass* array_klass, jint length))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
  NOT_PRODUCT(_new_object_array_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
489c9b5090e2 Initial load
duke
parents:
diff changeset
   368
  // Note: no handle for klass needed since they are not used
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
  //       anymore after new_objArray() and no GC can happen before.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  //       (This may have to change if this code changes!)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   371
  assert(array_klass->is_klass(), "not a class");
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
   372
  Klass* elem_klass = ObjArrayKlass::cast(array_klass)->element_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  objArrayOop obj = oopFactory::new_objArray(elem_klass, length, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
  thread->set_vm_result(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
  // This is pretty rare but this runtime patch is stressful to deoptimization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  // if we deoptimize here so force a deopt to stress the path.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
  if (DeoptimizeALot) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
    deopt_caller();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   379
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   383
JRT_ENTRY(void, Runtime1::new_multi_array(JavaThread* thread, Klass* klass, int rank, jint* dims))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
  NOT_PRODUCT(_new_multi_array_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   386
  assert(klass->is_klass(), "not a class");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
  assert(rank >= 1, "rank must be nonzero");
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
   388
  oop obj = ArrayKlass::cast(klass)->multi_allocate(rank, dims, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
  thread->set_vm_result(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
JRT_ENTRY(void, Runtime1::unimplemented_entry(JavaThread* thread, StubID id))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
  tty->print_cr("Runtime1::entry_for(%d) returned unimplemented entry point", id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
8067
f5f4eac4c48f 7008809: should report the class in ArrayStoreExceptions from compiled code
never
parents: 7913
diff changeset
   398
JRT_ENTRY(void, Runtime1::throw_array_store_exception(JavaThread* thread, oopDesc* obj))
f5f4eac4c48f 7008809: should report the class in ArrayStoreExceptions from compiled code
never
parents: 7913
diff changeset
   399
  ResourceMark rm(thread);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 13952
diff changeset
   400
  const char* klass_name = obj->klass()->external_name();
8067
f5f4eac4c48f 7008809: should report the class in ArrayStoreExceptions from compiled code
never
parents: 7913
diff changeset
   401
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_ArrayStoreException(), klass_name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
10014
a5c2141ee857 7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents: 9318
diff changeset
   405
// counter_overflow() is called from within C1-compiled methods. The enclosing method is the method
a5c2141ee857 7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents: 9318
diff changeset
   406
// associated with the top activation record. The inlinee (that is possibly included in the enclosing
a5c2141ee857 7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents: 9318
diff changeset
   407
// method) method oop is passed as an argument. In order to do that it is embedded in the code as
a5c2141ee857 7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents: 9318
diff changeset
   408
// a constant.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   409
static nmethod* counter_overflow_helper(JavaThread* THREAD, int branch_bci, Method* m) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   410
  nmethod* osr_nm = NULL;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   411
  methodHandle method(THREAD, m);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   412
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   413
  RegisterMap map(THREAD, false);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   414
  frame fr =  THREAD->last_frame().sender(&map);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
  nmethod* nm = (nmethod*) fr.cb();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   416
  assert(nm!= NULL && nm->is_nmethod(), "Sanity check");
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   417
  methodHandle enclosing_method(THREAD, nm->method());
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   418
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   419
  CompLevel level = (CompLevel)nm->comp_level();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   420
  int bci = InvocationEntryBci;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   421
  if (branch_bci != InvocationEntryBci) {
31620
53be635ad49c 8087333: Optionally Pre-Generate the HotSpot Template Interpreter
bdelsart
parents: 30764
diff changeset
   422
    // Compute destination bci
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   423
    address pc = method()->code_base() + branch_bci;
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   424
    Bytecodes::Code branch = Bytecodes::code_at(method(), pc);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   425
    int offset = 0;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   426
    switch (branch) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   427
      case Bytecodes::_if_icmplt: case Bytecodes::_iflt:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   428
      case Bytecodes::_if_icmpgt: case Bytecodes::_ifgt:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   429
      case Bytecodes::_if_icmple: case Bytecodes::_ifle:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   430
      case Bytecodes::_if_icmpge: case Bytecodes::_ifge:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   431
      case Bytecodes::_if_icmpeq: case Bytecodes::_if_acmpeq: case Bytecodes::_ifeq:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   432
      case Bytecodes::_if_icmpne: case Bytecodes::_if_acmpne: case Bytecodes::_ifne:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   433
      case Bytecodes::_ifnull: case Bytecodes::_ifnonnull: case Bytecodes::_goto:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   434
        offset = (int16_t)Bytes::get_Java_u2(pc + 1);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   435
        break;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   436
      case Bytecodes::_goto_w:
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   437
        offset = Bytes::get_Java_u4(pc + 1);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   438
        break;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   439
      default: ;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
    }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   441
    bci = branch_bci + offset;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   442
  }
11572
84afef481892 7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents: 10972
diff changeset
   443
  assert(!HAS_PENDING_EXCEPTION, "Should not have any exceptions pending");
10014
a5c2141ee857 7057120: Tiered: Allow C1 to inline methods with loops
iveresov
parents: 9318
diff changeset
   444
  osr_nm = CompilationPolicy::policy()->event(enclosing_method, method, branch_bci, bci, level, nm, THREAD);
11572
84afef481892 7131259: compile_method and CompilationPolicy::event shouldn't be declared TRAPS
iveresov
parents: 10972
diff changeset
   445
  assert(!HAS_PENDING_EXCEPTION, "Event handler should not throw any exceptions");
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   446
  return osr_nm;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   447
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   448
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   449
JRT_BLOCK_ENTRY(address, Runtime1::counter_overflow(JavaThread* thread, int bci, Method* method))
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   450
  nmethod* osr_nm;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   451
  JRT_BLOCK
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   452
    osr_nm = counter_overflow_helper(thread, bci, method);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   453
    if (osr_nm != NULL) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   454
      RegisterMap map(thread, false);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   455
      frame fr =  thread->last_frame().sender(&map);
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6453
diff changeset
   456
      Deoptimization::deoptimize_frame(thread, fr.id());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
    }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   458
  JRT_BLOCK_END
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
   459
  return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
extern void vm_exit(int code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
// Enter this method from compiled code handler below. This is where we transition
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
// to VM mode. This is done as a helper routine so that the method called directly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
// from compiled code does not have to transition to VM. This allows the entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
// method to see if the nmethod that we have just looked up a handler for has
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
// been deoptimized while we were in the vm. This simplifies the assembly code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
// cpu directories.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
// We are entering here from exception stub (via the entry method below)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
// If there is a compiled exception handler in this method, we will continue there;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
// otherwise we will unwind the stack and continue at the caller of top frame method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
// Note: we enter in Java using a special JRT wrapper. This wrapper allows us to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
// control the area where we can allow a safepoint. After we exit the safepoint area we can
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
// check to see if the handler we are going to return is now in a nmethod that has
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
// been deoptimized. If that is the case we return the deopt blob
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
// unpack_with_exception entry instead. This makes life for the exception blob easier
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
// because making that same check and diverting is painful from assembly language.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
JRT_ENTRY_NO_ASYNC(static address, exception_handler_for_pc_helper(JavaThread* thread, oopDesc* ex, address pc, nmethod*& nm))
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   481
  // Reset method handle flag.
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   482
  thread->set_is_method_handle_return(false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  Handle exception(thread, ex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  nm = CodeCache::find_nmethod(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  assert(nm != NULL, "this is not an nmethod");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  // Adjust the pc as needed/
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  if (nm->is_deopt_pc(pc)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
    RegisterMap map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
    frame exception_frame = thread->last_frame().sender(&map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
    // if the frame isn't deopted then pc must not correspond to the caller of last_frame
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
    assert(exception_frame.is_deoptimized_frame(), "must be deopted");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
    pc = exception_frame.pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
  assert(exception.not_null(), "NULL exceptions should be handled by throw_exception");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  assert(exception->is_oop(), "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  // Check that exception is a subclass of Throwable, otherwise we have a VerifyError
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 2105
diff changeset
   499
  if (!(exception->is_a(SystemDictionary::Throwable_klass()))) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
    if (ExitVMOnVerifyError) vm_exit(-1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
  // Check the stack guard pages and reenable them if necessary and there is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
  // enough space on the stack to do so.  Use fast exceptions only if the guard
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
  // pages are enabled.
35071
a0910b1d3e0d 8046936: JEP 270: Reserved Stack Areas for Critical Sections
fparain
parents: 34500
diff changeset
   508
  bool guard_pages_enabled = thread->stack_guards_enabled();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
  if (!guard_pages_enabled) guard_pages_enabled = thread->reguard_stack();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
4761
bdb7375a1fee 6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents: 4571
diff changeset
   511
  if (JvmtiExport::can_post_on_exceptions()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
    // To ensure correct notification of exception catches and throws
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    // we have to deoptimize here.  If we attempted to notify the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
    // catches and throws during this exception lookup it's possible
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
    // we could deoptimize on the way out of the VM and end back in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
    // the interpreter at the throw site.  This would result in double
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
    // notifications since the interpreter would also notify about
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
    // these same catches and throws as it unwound the frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
    RegisterMap reg_map(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
    frame stub_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
    frame caller_frame = stub_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
    // We don't really want to deoptimize the nmethod itself since we
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
    // can actually continue in the exception handler ourselves but I
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
    // don't see an easy way to have the desired effect.
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6453
diff changeset
   527
    Deoptimization::deoptimize_frame(thread, caller_frame.id());
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6453
diff changeset
   528
    assert(caller_is_deopted(), "Must be deoptimized");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
    return SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   533
  // ExceptionCache is used only for exceptions at call sites and not for implicit exceptions
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  if (guard_pages_enabled) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
    address fast_continuation = nm->handler_for_exception_and_pc(exception, pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
    if (fast_continuation != NULL) {
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   537
      // 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: 8067
diff changeset
   538
      thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
      return fast_continuation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  // If the stack guard pages are enabled, check whether there is a handler in
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
  // the current method.  Otherwise (guard pages disabled), force an unwind and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  // skip the exception cache update (i.e., just leave continuation==NULL).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  address continuation = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
  if (guard_pages_enabled) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
    // New exception handling mechanism can support inlined methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
    // with exception handlers since the mappings are from PC to PC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
    // debugging support
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
    // tracing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
    if (TraceExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
      ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
      ResourceMark rm;
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
   557
      tty->print_cr("Exception <%s> (" INTPTR_FORMAT ") thrown in compiled method <%s> at PC " INTPTR_FORMAT " for thread " INTPTR_FORMAT "",
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
   558
                    exception->print_value_string(), p2i((address)exception()), nm->method()->print_value_string(), p2i(pc), p2i(thread));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
    // for AbortVMOnException flag
33208
5ec6ffa63c57 8136577: Make AbortVMOnException available in product builds
poonam
parents: 31620
diff changeset
   561
    Exceptions::debug_check_abort(exception);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
    // Clear out the exception oop and pc since looking up an
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
    // exception handler can cause class loading, which might throw an
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
    // exception and those fields are expected to be clear during
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
    // normal bytecode execution.
20703
2de7fe0e9693 8005173: assert(false) failed: DEBUG MESSAGE: exception oop must be empty (macroAssembler_x86.cpp:625)
twisti
parents: 20303
diff changeset
   567
    thread->clear_exception_oop_and_pc();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
26169
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   569
    Handle original_exception(thread, exception());
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   570
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
    continuation = SharedRuntime::compute_compiled_exc_handler(nm, pc, exception, false, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
    // If an exception was thrown during exception dispatch, the exception oop may have changed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    thread->set_exception_oop(exception());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
    thread->set_exception_pc(pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
    // the exception cache is used only by non-implicit exceptions
26169
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   577
    // Update the exception cache only when there didn't happen
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   578
    // another exception during the computation of the compiled
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   579
    // exception handler.
b1e1ef66da74 8054224: Recursive method that was compiled by C1 is unable to catch StackOverflowError
roland
parents: 25716
diff changeset
   580
    if (continuation != NULL && original_exception() == exception()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
      nm->add_handler_for_exception_and_pc(exception, pc, continuation);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  thread->set_vm_result(exception());
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   586
  // 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: 8067
diff changeset
   587
  thread->set_is_method_handle_return(nm->is_method_handle_return(pc));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
  if (TraceExceptions) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
    ttyLocker ttyl;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
    tty->print_cr("Thread " PTR_FORMAT " continuing at PC " PTR_FORMAT " for exception thrown at PC " PTR_FORMAT,
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
   593
                  p2i(thread), p2i(continuation), p2i(pc));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
  return continuation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
// Enter this method from compiled code only if there is a Java exception handler
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   600
// in the method handling the exception.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
// We are entering here from exception stub. We don't do a normal VM transition here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
// We do it in a helper. This is so we can check to see if the nmethod we have just
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
// searched for an exception handler has been deoptimized in the meantime.
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   604
address Runtime1::exception_handler_for_pc(JavaThread* thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
  oop exception = thread->exception_oop();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  address pc = thread->exception_pc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
  // Still in Java mode
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   608
  DEBUG_ONLY(ResetNoHandleMark rnhm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
  nmethod* nm = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  address continuation = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
    // Enter VM mode by calling the helper
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
    ResetNoHandleMark rnhm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   614
    continuation = exception_handler_for_pc_helper(thread, exception, pc, nm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
  // Back in JAVA, use no oops DON'T safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  // Now check to see if the nmethod we were called from is now deoptimized.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  // If so we must return to the deopt blob and deoptimize the nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
  if (nm != NULL && caller_is_deopted()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
    continuation = SharedRuntime::deopt_blob()->unpack_with_exception_in_tls();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
8495
a4959965eaa3 7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents: 8067
diff changeset
   624
  assert(continuation != NULL, "no handler found");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
  return continuation;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
JRT_ENTRY(void, Runtime1::throw_range_check_exception(JavaThread* thread, int index))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
  NOT_PRODUCT(_throw_range_check_exception_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
  char message[jintAsStringSize];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
  sprintf(message, "%d", index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_ArrayIndexOutOfBoundsException(), message);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
JRT_ENTRY(void, Runtime1::throw_index_exception(JavaThread* thread, int index))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
  NOT_PRODUCT(_throw_index_exception_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
  char message[16];
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
  sprintf(message, "%d", index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_IndexOutOfBoundsException(), message);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
JRT_ENTRY(void, Runtime1::throw_div0_exception(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
  NOT_PRODUCT(_throw_div0_exception_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_ArithmeticException(), "/ by zero");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
JRT_ENTRY(void, Runtime1::throw_null_pointer_exception(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  NOT_PRODUCT(_throw_null_pointer_exception_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_NullPointerException());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
JRT_ENTRY(void, Runtime1::throw_class_cast_exception(JavaThread* thread, oopDesc* object))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
  NOT_PRODUCT(_throw_class_cast_exception_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
  char* message = SharedRuntime::generate_class_cast_message(
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 13952
diff changeset
   661
    thread, object->klass()->external_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  SharedRuntime::throw_and_post_jvmti_exception(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    thread, vmSymbols::java_lang_ClassCastException(), message);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
JRT_ENTRY(void, Runtime1::throw_incompatible_class_change_error(JavaThread* thread))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
  NOT_PRODUCT(_throw_incompatible_class_change_error_count++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
  SharedRuntime::throw_and_post_jvmti_exception(thread, vmSymbols::java_lang_IncompatibleClassChangeError());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
JRT_ENTRY_NO_ASYNC(void, Runtime1::monitorenter(JavaThread* thread, oopDesc* obj, BasicObjectLock* lock))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  NOT_PRODUCT(_monitorenter_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
  if (PrintBiasedLockingStatistics) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    Atomic::inc(BiasedLocking::slow_path_entry_count_addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
  Handle h_obj(thread, obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
  assert(h_obj()->is_oop(), "must be NULL or an object");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
  if (UseBiasedLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
    // Retry fast entry if bias is revoked to avoid unnecessary inflation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
    ObjectSynchronizer::fast_enter(h_obj, lock->lock(), true, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    if (UseFastLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
      // When using fast locking, the compiled code has already tried the fast case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
      assert(obj == lock->obj(), "must match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
      ObjectSynchronizer::slow_enter(h_obj, lock->lock(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
      lock->set_obj(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
      ObjectSynchronizer::fast_enter(h_obj, lock->lock(), false, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
JRT_LEAF(void, Runtime1::monitorexit(JavaThread* thread, BasicObjectLock* lock))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  NOT_PRODUCT(_monitorexit_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  assert(thread == JavaThread::current(), "threads must correspond");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  assert(thread->last_Java_sp(), "last_Java_sp must be set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  // monitorexit is non-blocking (leaf routine) => no exceptions can be thrown
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  EXCEPTION_MARK;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
  oop obj = lock->obj();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
  assert(obj->is_oop(), "must be NULL or an object");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
  if (UseFastLocking) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
    // When using fast locking, the compiled code has already tried the fast case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    ObjectSynchronizer::slow_exit(obj, lock->lock(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
    ObjectSynchronizer::fast_exit(obj, lock->lock(), THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
10972
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   714
// Cf. OptoRuntime::deoptimize_caller_frame
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   715
JRT_ENTRY(void, Runtime1::deoptimize(JavaThread* thread, jint trap_request))
10972
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   716
  // Called from within the owner thread, so no need for safepoint
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   717
  RegisterMap reg_map(thread, false);
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   718
  frame stub_frame = thread->last_frame();
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   719
  assert(stub_frame.is_runtime_frame(), "Sanity check");
10972
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   720
  frame caller_frame = stub_frame.sender(&reg_map);
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   721
  nmethod* nm = caller_frame.cb()->as_nmethod_or_null();
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   722
  assert(nm != NULL, "Sanity check");
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   723
  methodHandle method(thread, nm->method());
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   724
  assert(nm == CodeCache::find_nmethod(caller_frame.pc()), "Should be the same");
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   725
  Deoptimization::DeoptAction action = Deoptimization::trap_request_action(trap_request);
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   726
  Deoptimization::DeoptReason reason = Deoptimization::trap_request_reason(trap_request);
10972
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   727
24442
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   728
  if (action == Deoptimization::Action_make_not_entrant) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   729
    if (nm->make_not_entrant()) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   730
      if (reason == Deoptimization::Reason_tenured) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   731
        MethodData* trap_mdo = Deoptimization::get_method_data(thread, method, true /*create_if_missing*/);
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   732
        if (trap_mdo != NULL) {
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   733
          trap_mdo->inc_tenure_traps();
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   734
        }
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   735
      }
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   736
    }
4d4ae31dea26 8032463: VirtualDispatch test timeout with DeoptimizeALot
iveresov
parents: 24424
diff changeset
   737
  }
10972
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   738
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   739
  // Deoptimize the caller frame.
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   740
  Deoptimization::deoptimize_frame(thread, caller_frame.id());
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   741
  // Return to the now deoptimized frame.
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   742
JRT_END
ef164805934c 7102657: JSR 292: C1 deoptimizes unlinked invokedynamic call sites infinitely
twisti
parents: 10508
diff changeset
   743
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
29180
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
   745
#ifndef DEOPTIMIZE_WHEN_PATCHING
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
   746
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   747
static Klass* resolve_field_return_klass(methodHandle caller, int bci, TRAPS) {
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   748
  Bytecode_field field_access(caller, bci);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
  // This can be static or non-static field access
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   750
  Bytecodes::Code code       = field_access.code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
  // We must load class, initialize class and resolvethe field
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   753
  fieldDescriptor result; // initialize class if needed
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  constantPoolHandle constants(THREAD, caller->constants());
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   755
  LinkResolver::resolve_field_access(result, constants, field_access.index(), Bytecodes::java_code(code), CHECK_NULL);
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   756
  return result.field_holder();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
// This routine patches sites where a class wasn't loaded or
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
// initialized at the time the code was generated.  It handles
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
// references to classes, fields and forcing of initialization.  Most
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
// of the cases are straightforward and involving simply forcing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
// resolution of a class, rewriting the instruction stream with the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
// needed constant and replacing the call in this function with the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
// patched code.  The case for static field is more complicated since
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
// the thread which is in the process of initializing a class can
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
// access it's static fields but other threads can't so the code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
// either has to deoptimize when this case is detected or execute a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
// check that the current thread is the initializing thread.  The
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
// current
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
// Patches basically look like this:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
// patch_site: jmp patch stub     ;; will be patched
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
// continue:   ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
//             ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
//             ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
//             ...
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
// They have a stub which looks like this:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
//             ;; patch body
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
//             movl <const>, reg           (for class constants)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
//        <or> movl [reg1 + <const>], reg  (for field offsets)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
//        <or> movl reg, [reg1 + <const>]  (for field offsets)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
//             <being_init offset> <bytes to copy> <bytes to skip>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
// patch_stub: call Runtime1::patch_code (through a runtime stub)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
//             jmp patch_site
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
// A normal patch is done by rewriting the patch body, usually a move,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
// and then copying it into place over top of the jmp instruction
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
// being careful to flush caches and doing it in an MP-safe way.  The
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
// constants following the patch body are used to find various pieces
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
// of the patch relative to the call site for Runtime1::patch_code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
// The case for getstatic and putstatic is more complicated because
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
// getstatic and putstatic have special semantics when executing while
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
// the class is being initialized.  getstatic/putstatic on a class
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
// which is being_initialized may be executed by the initializing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
// thread but other threads have to block when they execute it.  This
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
// is accomplished in compiled code by executing a test of the current
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
// thread against the initializing thread of the class.  It's emitted
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
// as boilerplate in their stub which allows the patched code to be
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
// executed before it's copied back into the main body of the nmethod.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
// being_init: get_thread(<tmp reg>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
//             cmpl [reg1 + <init_thread_offset>], <tmp reg>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
//             jne patch_stub
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
//             movl [reg1 + <const>], reg  (for field offsets)  <or>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
//             movl reg, [reg1 + <const>]  (for field offsets)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
//             jmp continue
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
//             <being_init offset> <bytes to copy> <bytes to skip>
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
// patch_stub: jmp Runtim1::patch_code (through a runtime stub)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
//             jmp patch_site
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
// If the class is being initialized the patch body is rewritten and
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
// the patch site is rewritten to jump to being_init, instead of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
// patch_stub.  Whenever this code is executed it checks the current
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
// thread against the intializing thread so other threads will enter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
// the runtime and end up blocked waiting the class to finish
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
// initializing inside the calls to resolve_field below.  The
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
// initializing class will continue on it's way.  Once the class is
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
// fully_initialized, the intializing_thread of the class becomes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
// NULL, so the next thread to execute this code will fail the test,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
// call into patch_code and complete the patching process by copying
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
// the patch body back into the main part of the nmethod and resume
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
// executing.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
JRT_ENTRY(void, Runtime1::patch_code(JavaThread* thread, Runtime1::StubID stub_id ))
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
  NOT_PRODUCT(_patch_code_slowcase_cnt++;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
  RegisterMap reg_map(thread, false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
  frame runtime_frame = thread->last_frame();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
  frame caller_frame = runtime_frame.sender(&reg_map);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  // last java frame on stack
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
  vframeStream vfst(thread, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  assert(!vfst.at_end(), "Java frame must exist");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  methodHandle caller_method(THREAD, vfst.method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
  // Note that caller_method->code() may not be same as caller_code because of OSR's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
  // Note also that in the presence of inlining it is not guaranteed
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
  // that caller_method() == caller_code->method()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
  int bci = vfst.bci();
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   852
  Bytecodes::Code code = caller_method()->java_code_at(bci);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
489c9b5090e2 Initial load
duke
parents:
diff changeset
   854
  // this is used by assertions in the access_field_patching_id
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
  BasicType patch_field_type = T_ILLEGAL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  bool deoptimize_for_volatile = false;
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   857
  bool deoptimize_for_atomic = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
  int patch_field_offset = -1;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   859
  KlassHandle init_klass(THREAD, NULL); // klass needed by load_klass_patching code
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   860
  KlassHandle load_klass(THREAD, NULL); // klass needed by load_klass_patching code
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   861
  Handle mirror(THREAD, NULL);                    // oop needed by load_mirror_patching code
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   862
  Handle appendix(THREAD, NULL);                  // oop needed by appendix_patching code
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   863
  bool load_klass_or_mirror_patch_id =
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   864
    (stub_id == Runtime1::load_klass_patching_id || stub_id == Runtime1::load_mirror_patching_id);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   865
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
  if (stub_id == Runtime1::access_field_patching_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   868
    Bytecode_field field_access(caller_method, bci);
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   869
    fieldDescriptor result; // initialize class if needed
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   870
    Bytecodes::Code code = field_access.code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
    constantPoolHandle constants(THREAD, caller_method->constants());
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   872
    LinkResolver::resolve_field_access(result, constants, field_access.index(), Bytecodes::java_code(code), CHECK);
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19710
diff changeset
   873
    patch_field_offset = result.offset();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   874
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
    // If we're patching a field which is volatile then at compile it
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
    // must not have been know to be volatile, so the generated code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
    // isn't correct for a volatile reference.  The nmethod has to be
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
    // deoptimized so that the code can be regenerated correctly.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
    // This check is only needed for access_field_patching since this
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
    // is the path for patching field offsets.  load_klass is only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
    // used for patching references to oops which don't need special
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
    // handling in the volatile case.
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   883
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
    deoptimize_for_volatile = result.access_flags().is_volatile();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   886
    // If we are patching a field which should be atomic, then
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   887
    // the generated code is not correct either, force deoptimizing.
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   888
    // We need to only cover T_LONG and T_DOUBLE fields, as we can
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   889
    // break access atomicity only for them.
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   890
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   891
    // Strictly speaking, the deoptimizaation on 64-bit platforms
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   892
    // is unnecessary, and T_LONG stores on 32-bit platforms need
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   893
    // to be handled by special patching code when AlwaysAtomicAccesses
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   894
    // becomes product feature. At this point, we are still going
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   895
    // for the deoptimization for consistency against volatile
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   896
    // accesses.
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   897
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
    patch_field_type = result.field_type();
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   899
    deoptimize_for_atomic = (AlwaysAtomicAccesses && (patch_field_type == T_DOUBLE || patch_field_type == T_LONG));
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   900
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   901
  } else if (load_klass_or_mirror_patch_id) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   902
    Klass* k = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   903
    switch (code) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   904
      case Bytecodes::_putstatic:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
      case Bytecodes::_getstatic:
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   906
        { Klass* klass = resolve_field_return_klass(caller_method, bci, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
          init_klass = KlassHandle(THREAD, klass);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   908
          mirror = Handle(THREAD, klass->java_mirror());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
      case Bytecodes::_new:
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   912
        { Bytecode_new bnew(caller_method(), caller_method->bcp_from(bci));
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   913
          k = caller_method->constants()->klass_at(bnew.index(), CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
      case Bytecodes::_multianewarray:
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   917
        { Bytecode_multianewarray mna(caller_method(), caller_method->bcp_from(bci));
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   918
          k = caller_method->constants()->klass_at(mna.index(), CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
      case Bytecodes::_instanceof:
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   922
        { Bytecode_instanceof io(caller_method(), caller_method->bcp_from(bci));
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   923
          k = caller_method->constants()->klass_at(io.index(), CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
      case Bytecodes::_checkcast:
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   927
        { Bytecode_checkcast cc(caller_method(), caller_method->bcp_from(bci));
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   928
          k = caller_method->constants()->klass_at(cc.index(), CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
      case Bytecodes::_anewarray:
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   932
        { Bytecode_anewarray anew(caller_method(), caller_method->bcp_from(bci));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   933
          Klass* ek = caller_method->constants()->klass_at(anew.index(), CHECK);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 13952
diff changeset
   934
          k = ek->array_klass(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
      case Bytecodes::_ldc:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
      case Bytecodes::_ldc_w:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
        {
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7427
diff changeset
   940
          Bytecode_loadconstant cc(caller_method, bci);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   941
          oop m = cc.resolve_constant(CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   942
          mirror = Handle(THREAD, m);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
        break;
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   945
      default: fatal("unexpected bytecode for load_klass_or_mirror_patch_id");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
    // convert to handle
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
   948
    load_klass = KlassHandle(THREAD, k);
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   949
  } else if (stub_id == load_appendix_patching_id) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   950
    Bytecode_invoke bytecode(caller_method, bci);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   951
    Bytecodes::Code bc = bytecode.invoke_code();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   952
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   953
    CallInfo info;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   954
    constantPoolHandle pool(thread, caller_method->constants());
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   955
    int index = bytecode.index();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   956
    LinkResolver::resolve_invoke(info, Handle(), pool, index, bc, CHECK);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   957
    appendix = info.resolved_appendix();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   958
    switch (bc) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   959
      case Bytecodes::_invokehandle: {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   960
        int cache_index = ConstantPool::decode_cpcache_index(index, true);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   961
        assert(cache_index >= 0 && cache_index < pool->cache()->length(), "unexpected cache index");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   962
        pool->cache()->entry_at(cache_index)->set_method_handle(pool, info);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   963
        break;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   964
      }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   965
      case Bytecodes::_invokedynamic: {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   966
        pool->invokedynamic_cp_cache_entry_at(index)->set_dynamic_call(pool, info);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   967
        break;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   968
      }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   969
      default: fatal("unexpected bytecode for load_appendix_patching_id");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
   970
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
    ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   975
  if (deoptimize_for_volatile || deoptimize_for_atomic) {
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   976
    // At compile time we assumed the field wasn't volatile/atomic but after
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   977
    // loading it turns out it was volatile/atomic so we have to throw the
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
    // compiled code out and let it be regenerated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   979
    if (TracePatching) {
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   980
      if (deoptimize_for_volatile) {
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   981
        tty->print_cr("Deoptimizing for patching volatile field reference");
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   982
      }
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   983
      if (deoptimize_for_atomic) {
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   984
        tty->print_cr("Deoptimizing for patching atomic field reference");
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   985
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
    }
23189
27cf1316709b 8033380: Experimental VM flag to enforce access atomicity
shade
parents: 20703
diff changeset
   987
1672
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   988
    // It's possible the nmethod was invalidated in the last
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   989
    // safepoint, but if it's still alive then make it not_entrant.
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   990
    nmethod* nm = CodeCache::find_nmethod(caller_frame.pc());
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   991
    if (nm != NULL) {
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   992
      nm->make_not_entrant();
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   993
    }
ae4d91125c2d 6767587: missing call to make_not_entrant after deoptimizing for patching volatiles
never
parents: 1394
diff changeset
   994
7106
867c9d296c6b 6968367: can_post_on_exceptions is still using VM_DeoptimizeFrame in some places
never
parents: 6453
diff changeset
   995
    Deoptimization::deoptimize_frame(thread, caller_frame.id());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
    // Return to the now deoptimized frame.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
  // Now copy code back
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
    MutexLockerEx ml_patch (Patching_lock, Mutex::_no_safepoint_check_flag);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
    //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
    // Deoptimization may have happened while we waited for the lock.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
    // In that case we don't bother to do any patching we just return
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
    // and let the deopt happen
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
    if (!caller_is_deopted()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
      NativeGeneralJump* jump = nativeGeneralJump_at(caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
      address instr_pc = jump->jump_destination();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
      NativeInstruction* ni = nativeInstruction_at(instr_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
      if (ni->is_jump() ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
        // the jump has not been patched yet
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
        // The jump destination is slow case and therefore not part of the stubs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
        // (stubs are only for StaticCalls)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
        // format of buffer
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
        //    ....
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
        //    instr byte 0     <-- copy_buff
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
        //    instr byte 1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
        //    ..
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
        //    instr byte n-1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
        //      n
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
        //    ....             <-- call destination
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
        address stub_location = caller_frame.pc() + PatchingStub::patch_info_offset();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
        unsigned char* byte_count = (unsigned char*) (stub_location - 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
        unsigned char* byte_skip = (unsigned char*) (stub_location - 2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
        unsigned char* being_initialized_entry_offset = (unsigned char*) (stub_location - 3);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
        address copy_buff = stub_location - *byte_skip - *byte_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
        address being_initialized_entry = stub_location - *being_initialized_entry_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
        if (TracePatching) {
35542
9dccb7f9f656 8071374: -XX:+PrintAssembly -XX:+PrintSignatureHandlers crash fastdebug VM with assert(limit == __null || limit <= nm->code_end()) in RelocIterator::initialize
vlivanov
parents: 35540
diff changeset
  1033
          ttyLocker ttyl;
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
  1034
          tty->print_cr(" Patching %s at bci %d at address " INTPTR_FORMAT "  (%s)", Bytecodes::name(code), bci,
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
  1035
                        p2i(instr_pc), (stub_id == Runtime1::access_field_patching_id) ? "field" : "klass");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
          nmethod* caller_code = CodeCache::find_nmethod(caller_frame.pc());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
          assert(caller_code != NULL, "nmethod not found");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
          // NOTE we use pc() not original_pc() because we already know they are
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
          // identical otherwise we'd have never entered this block of code
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
30590
14f7f48c1377 8064458: OopMap class could be more compact
rbackman
parents: 29474
diff changeset
  1042
          const ImmutableOopMap* map = caller_code->oop_map_for_return_address(caller_frame.pc());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
          assert(map != NULL, "null check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1044
          map->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
          tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
          Disassembler::decode(copy_buff, copy_buff + *byte_count, tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
        // depending on the code below, do_patch says whether to copy the patch body back into the nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
        bool do_patch = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
        if (stub_id == Runtime1::access_field_patching_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
          // The offset may not be correct if the class was not loaded at code generation time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
          // Set it now.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
          NativeMovRegMem* n_move = nativeMovRegMem_at(copy_buff);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
          assert(n_move->offset() == 0 || (n_move->offset() == 4 && (patch_field_type == T_DOUBLE || patch_field_type == T_LONG)), "illegal offset for type");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
          assert(patch_field_offset >= 0, "illegal offset");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
          n_move->add_offset_in_bytes(patch_field_offset);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1058
        } else if (load_klass_or_mirror_patch_id) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1059
          // If a getstatic or putstatic is referencing a klass which
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
          // isn't fully initialized, the patch body isn't copied into
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
          // place until initialization is complete.  In this case the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
          // patch site is setup so that any threads besides the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1063
          // initializing thread are forced to come into the VM and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
          // block.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
          do_patch = (code != Bytecodes::_getstatic && code != Bytecodes::_putstatic) ||
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1066
                     InstanceKlass::cast(init_klass())->is_initialized();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
          NativeGeneralJump* jump = nativeGeneralJump_at(instr_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
          if (jump->jump_destination() == being_initialized_entry) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
            assert(do_patch == true, "initialization must be complete at this point");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
          } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
            // patch the instruction <move reg, klass>
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
            NativeMovConstReg* n_copy = nativeMovConstReg_at(copy_buff);
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1073
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1074
            assert(n_copy->data() == 0 ||
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6418
diff changeset
  1075
                   n_copy->data() == (intptr_t)Universe::non_oop_word(),
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1076
                   "illegal init value");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1077
            if (stub_id == Runtime1::load_klass_patching_id) {
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1078
              assert(load_klass() != NULL, "klass not set");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1079
              n_copy->set_data((intx) (load_klass()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1080
            } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1081
              assert(mirror() != NULL, "klass not set");
25492
d27050bdfb04 8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents: 25491
diff changeset
  1082
              // Don't need a G1 pre-barrier here since we assert above that data isn't an oop.
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 20017
diff changeset
  1083
              n_copy->set_data(cast_from_oop<intx>(mirror()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1084
            }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
            if (TracePatching) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1087
              Disassembler::decode(copy_buff, copy_buff + *byte_count, tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1088
            }
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1089
          }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1090
        } else if (stub_id == Runtime1::load_appendix_patching_id) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1091
          NativeMovConstReg* n_copy = nativeMovConstReg_at(copy_buff);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1092
          assert(n_copy->data() == 0 ||
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1093
                 n_copy->data() == (intptr_t)Universe::non_oop_word(),
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1094
                 "illegal init value");
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 20017
diff changeset
  1095
          n_copy->set_data(cast_from_oop<intx>(appendix()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1097
          if (TracePatching) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1098
            Disassembler::decode(copy_buff, copy_buff + *byte_count, tty);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
          ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
        }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1103
34220
1ba69cb5585c 8138952: C1: Distinguish between PPC32 and PPC64
mdoerr
parents: 33470
diff changeset
  1104
#if defined(SPARC) || defined(PPC32)
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1105
        if (load_klass_or_mirror_patch_id ||
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1106
            stub_id == Runtime1::load_appendix_patching_id) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1107
          // Update the location in the nmethod with the proper
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1108
          // metadata.  When the code was generated, a NULL was stuffed
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1109
          // in the metadata table and that table needs to be update to
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1110
          // have the right value.  On intel the value is kept
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1111
          // directly in the instruction instead of in the metadata
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1112
          // table, so set_data above effectively updated the value.
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1113
          nmethod* nm = CodeCache::find_nmethod(instr_pc);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1114
          assert(nm != NULL, "invalid nmethod_pc");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1115
          RelocIterator mds(nm, copy_buff, copy_buff + 1);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1116
          bool found = false;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1117
          while (mds.next() && !found) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1118
            if (mds.type() == relocInfo::oop_type) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1119
              assert(stub_id == Runtime1::load_mirror_patching_id ||
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1120
                     stub_id == Runtime1::load_appendix_patching_id, "wrong stub id");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1121
              oop_Relocation* r = mds.oop_reloc();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1122
              oop* oop_adr = r->oop_addr();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1123
              *oop_adr = stub_id == Runtime1::load_mirror_patching_id ? mirror() : appendix();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1124
              r->fix_oop_relocation();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1125
              found = true;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1126
            } else if (mds.type() == relocInfo::metadata_type) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1127
              assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1128
              metadata_Relocation* r = mds.metadata_reloc();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1129
              Metadata** metadata_adr = r->metadata_addr();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1130
              *metadata_adr = load_klass();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1131
              r->fix_metadata_relocation();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1132
              found = true;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1133
            }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1134
          }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1135
          assert(found, "the metadata must exist!");
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1136
        }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1137
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
        if (do_patch) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
          // replace instructions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1140
          // first replace the tail, then the call
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1141
#ifdef ARM
20301
7a16289e8bef 8024990: JT_JDK: 11 failures with SIGSEGV on arm-sflt platforms in nightly fastdebug build.
jiangli
parents: 19710
diff changeset
  1142
          if((load_klass_or_mirror_patch_id ||
7a16289e8bef 8024990: JT_JDK: 11 failures with SIGSEGV on arm-sflt platforms in nightly fastdebug build.
jiangli
parents: 19710
diff changeset
  1143
              stub_id == Runtime1::load_appendix_patching_id) &&
29474
81a5c5330d08 8072383: resolve conflicts between open and closed ports
dlong
parents: 29180
diff changeset
  1144
              nativeMovConstReg_at(copy_buff)->is_pc_relative()) {
9318
c7acc13a9226 7035861: linux-armsflt: assert(ni->data() == (int)(x + o)) failed: instructions must match
vladidan
parents: 9102
diff changeset
  1145
            nmethod* nm = CodeCache::find_nmethod(instr_pc);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1146
            address addr = NULL;
9318
c7acc13a9226 7035861: linux-armsflt: assert(ni->data() == (int)(x + o)) failed: instructions must match
vladidan
parents: 9102
diff changeset
  1147
            assert(nm != NULL, "invalid nmethod_pc");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1148
            RelocIterator mds(nm, copy_buff, copy_buff + 1);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1149
            while (mds.next()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1150
              if (mds.type() == relocInfo::oop_type) {
20301
7a16289e8bef 8024990: JT_JDK: 11 failures with SIGSEGV on arm-sflt platforms in nightly fastdebug build.
jiangli
parents: 19710
diff changeset
  1151
                assert(stub_id == Runtime1::load_mirror_patching_id ||
7a16289e8bef 8024990: JT_JDK: 11 failures with SIGSEGV on arm-sflt platforms in nightly fastdebug build.
jiangli
parents: 19710
diff changeset
  1152
                       stub_id == Runtime1::load_appendix_patching_id, "wrong stub id");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1153
                oop_Relocation* r = mds.oop_reloc();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1154
                addr = (address)r->oop_addr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1155
                break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1156
              } else if (mds.type() == relocInfo::metadata_type) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1157
                assert(stub_id == Runtime1::load_klass_patching_id, "wrong stub id");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1158
                metadata_Relocation* r = mds.metadata_reloc();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1159
                addr = (address)r->metadata_addr();
9318
c7acc13a9226 7035861: linux-armsflt: assert(ni->data() == (int)(x + o)) failed: instructions must match
vladidan
parents: 9102
diff changeset
  1160
                break;
c7acc13a9226 7035861: linux-armsflt: assert(ni->data() == (int)(x + o)) failed: instructions must match
vladidan
parents: 9102
diff changeset
  1161
              }
c7acc13a9226 7035861: linux-armsflt: assert(ni->data() == (int)(x + o)) failed: instructions must match
vladidan
parents: 9102
diff changeset
  1162
            }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1163
            assert(addr != NULL, "metadata relocation must exist");
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1164
            copy_buff -= *byte_count;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1165
            NativeMovConstReg* n_copy2 = nativeMovConstReg_at(copy_buff);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1166
            n_copy2->set_pc_relative_offset(addr, instr_pc);
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1167
          }
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1168
#endif
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1169
34500
3c82f7ac03e6 8138896: C1: NativeGeneralJump is mixed up with NativeCall in C1 patching code
mdoerr
parents: 34220
diff changeset
  1170
          for (int i = NativeGeneralJump::instruction_size; i < *byte_count; i++) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
            address ptr = copy_buff + i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1172
            int a_byte = (*ptr) & 0xFF;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1173
            address dst = instr_pc + i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
            *(unsigned char*)dst = (unsigned char) a_byte;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
          ICache::invalidate_range(instr_pc, *byte_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
          NativeGeneralJump::replace_mt_safe(instr_pc, copy_buff);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1179
          if (load_klass_or_mirror_patch_id ||
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1180
              stub_id == Runtime1::load_appendix_patching_id) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1181
            relocInfo::relocType rtype =
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1182
              (stub_id == Runtime1::load_klass_patching_id) ?
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1183
                                   relocInfo::metadata_type :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1184
                                   relocInfo::oop_type;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1185
            // update relocInfo to metadata
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
            nmethod* nm = CodeCache::find_nmethod(instr_pc);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
            assert(nm != NULL, "invalid nmethod_pc");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
            // The old patch site is now a move instruction so update
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
            // the reloc info so that it will get updated during
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
            // future GCs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
            RelocIterator iter(nm, (address)instr_pc, (address)(instr_pc + 1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
            relocInfo::change_reloc_info_for_address(&iter, (address) instr_pc,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1194
                                                     relocInfo::none, rtype);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
#ifdef SPARC
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1196
            // Sparc takes two relocations for an metadata so update the second one.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
            address instr_pc2 = instr_pc + NativeMovConstReg::add_offset;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
            RelocIterator iter2(nm, instr_pc2, instr_pc2 + 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
            relocInfo::change_reloc_info_for_address(&iter2, (address) instr_pc2,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1200
                                                     relocInfo::none, rtype);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
#endif
34220
1ba69cb5585c 8138952: C1: Distinguish between PPC32 and PPC64
mdoerr
parents: 33470
diff changeset
  1202
#ifdef PPC32
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1203
          { address instr_pc2 = instr_pc + NativeMovConstReg::lo_offset;
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1204
            RelocIterator iter2(nm, instr_pc2, instr_pc2 + 1);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1205
            relocInfo::change_reloc_info_for_address(&iter2, (address) instr_pc2,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1206
                                                     relocInfo::none, rtype);
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1207
          }
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5883
diff changeset
  1208
#endif
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
          ICache::invalidate_range(copy_buff, *byte_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1213
          NativeGeneralJump::insert_unconditional(instr_pc, being_initialized_entry);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1217
  }
19339
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1218
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1219
  // If we are patching in a non-perm oop, make sure the nmethod
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1220
  // is on the right list.
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1221
  if (ScavengeRootsInCode && ((mirror.not_null() && mirror()->is_scavengable()) ||
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1222
                              (appendix.not_null() && appendix->is_scavengable()))) {
19339
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1223
    MutexLockerEx ml_code (CodeCache_lock, Mutex::_no_safepoint_check_flag);
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1224
    nmethod* nm = CodeCache::find_nmethod(caller_frame.pc());
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1225
    guarantee(nm != NULL, "only nmethods can contain non-perm oops");
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1226
    if (!nm->on_scavenge_root_list()) {
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1227
      CodeCache::add_scavenge_root_nmethod(nm);
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1228
    }
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1229
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1230
    // Since we've patched some oops in the nmethod,
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1231
    // (re)register it with the heap.
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1232
    Universe::heap()->register_nmethod(nm);
d247781beec7 7145569: G1: optimize nmethods scanning
johnc
parents: 18507
diff changeset
  1233
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
29180
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1236
#else // DEOPTIMIZE_WHEN_PATCHING
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1237
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1238
JRT_ENTRY(void, Runtime1::patch_code(JavaThread* thread, Runtime1::StubID stub_id ))
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1239
  RegisterMap reg_map(thread, false);
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1240
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1241
  NOT_PRODUCT(_patch_code_slowcase_cnt++;)
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1242
  if (TracePatching) {
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1243
    tty->print_cr("Deoptimizing because patch is needed");
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1244
  }
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1245
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1246
  frame runtime_frame = thread->last_frame();
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1247
  frame caller_frame = runtime_frame.sender(&reg_map);
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1248
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1249
  // It's possible the nmethod was invalidated in the last
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1250
  // safepoint, but if it's still alive then make it not_entrant.
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1251
  nmethod* nm = CodeCache::find_nmethod(caller_frame.pc());
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1252
  if (nm != NULL) {
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1253
    nm->make_not_entrant();
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1254
  }
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1255
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1256
  Deoptimization::deoptimize_frame(thread, caller_frame.id());
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1257
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1258
  // Return to the now deoptimized frame.
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1259
JRT_END
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1260
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1261
#endif // DEOPTIMIZE_WHEN_PATCHING
50369728b00e 8064611: AARCH64: Changes to HotSpot shared code
aph
parents: 26169
diff changeset
  1262
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
// Entry point for compiled code. We want to patch a nmethod.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
// We don't do a normal VM transition here because we want to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
// know after the patching is complete and any safepoint(s) are taken
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
// if the calling nmethod was deoptimized. We do this by calling a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
// helper method which does the normal VM transition and when it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
// completes we can check for deoptimization. This simplifies the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
// assembly code in the cpu directories.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
int Runtime1::move_klass_patching(JavaThread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
// NOTE: we are still in Java
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
  Thread* THREAD = thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  debug_only(NoHandleMark nhm;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
    // Enter VM mode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
    ResetNoHandleMark rnhm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
    patch_code(thread, load_klass_patching_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
  // Back in JAVA, use no oops DON'T safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  // Return true if calling code is deoptimized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
  return caller_is_deopted();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1291
int Runtime1::move_mirror_patching(JavaThread* thread) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1292
//
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1293
// NOTE: we are still in Java
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1294
//
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1295
  Thread* THREAD = thread;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1296
  debug_only(NoHandleMark nhm;)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1297
  {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1298
    // Enter VM mode
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1299
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1300
    ResetNoHandleMark rnhm;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1301
    patch_code(thread, load_mirror_patching_id);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1302
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1303
  // Back in JAVA, use no oops DON'T safepoint
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1304
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1305
  // Return true if calling code is deoptimized
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1306
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1307
  return caller_is_deopted();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1308
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1309
19710
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1310
int Runtime1::move_appendix_patching(JavaThread* thread) {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1311
//
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1312
// NOTE: we are still in Java
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1313
//
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1314
  Thread* THREAD = thread;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1315
  debug_only(NoHandleMark nhm;)
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1316
  {
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1317
    // Enter VM mode
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1318
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1319
    ResetNoHandleMark rnhm;
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1320
    patch_code(thread, load_appendix_patching_id);
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1321
  }
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1322
  // Back in JAVA, use no oops DON'T safepoint
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1323
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1324
  // Return true if calling code is deoptimized
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1325
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1326
  return caller_is_deopted();
2f8ca425504e 7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents: 19339
diff changeset
  1327
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
// Entry point for compiled code. We want to patch a nmethod.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
// We don't do a normal VM transition here because we want to
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
// know after the patching is complete and any safepoint(s) are taken
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
// if the calling nmethod was deoptimized. We do this by calling a
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
// helper method which does the normal VM transition and when it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
// completes we can check for deoptimization. This simplifies the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
// assembly code in the cpu directories.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
int Runtime1::access_field_patching(JavaThread* thread) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
// NOTE: we are still in Java
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
  Thread* THREAD = thread;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
  debug_only(NoHandleMark nhm;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
    // Enter VM mode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
    ResetNoHandleMark rnhm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
    patch_code(thread, access_field_patching_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
  // Back in JAVA, use no oops DON'T safepoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
  // Return true if calling code is deoptimized
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
  return caller_is_deopted();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1356
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1357
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
JRT_LEAF(void, Runtime1::trace_block_entry(jint block_id))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
  // for now we just print out the block id
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  tty->print("%d ", block_id);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1364
// Array copy return codes.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1365
enum {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1366
  ac_failed = -1, // arraycopy failed
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1367
  ac_ok = 0       // arraycopy succeeded
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1368
};
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1369
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1370
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1371
// Below length is the # elements copied.
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1372
template <class T> int obj_arraycopy_work(oopDesc* src, T* src_addr,
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1373
                                          oopDesc* dst, T* dst_addr,
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1374
                                          int length) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1375
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1376
  // For performance reasons, we assume we are using a card marking write
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1377
  // barrier. The assert will fail if this is not the case.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1378
  // Note that we use the non-virtual inlineable variant of write_ref_array.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1379
  BarrierSet* bs = Universe::heap()->barrier_set();
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1380
  assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1381
  assert(bs->has_write_ref_array_pre_opt(), "For pre-barrier as well.");
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1382
  if (src == dst) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1383
    // same object, no check
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1384
    bs->write_ref_array_pre(dst_addr, length);
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1385
    Copy::conjoint_oops_atomic(src_addr, dst_addr, length);
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1386
    bs->write_ref_array((HeapWord*)dst_addr, length);
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1387
    return ac_ok;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1388
  } else {
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
  1389
    Klass* bound = ObjArrayKlass::cast(dst->klass())->element_klass();
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
  1390
    Klass* stype = ObjArrayKlass::cast(src->klass())->element_klass();
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 13952
diff changeset
  1391
    if (stype == bound || stype->is_subtype_of(bound)) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1392
      // Elements are guaranteed to be subtypes, so no check necessary
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1393
      bs->write_ref_array_pre(dst_addr, length);
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1394
      Copy::conjoint_oops_atomic(src_addr, dst_addr, length);
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1395
      bs->write_ref_array((HeapWord*)dst_addr, length);
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1396
      return ac_ok;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1397
    }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1398
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1399
  return ac_failed;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1400
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1401
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
// fast and direct copy of arrays; returning -1, means that an exception may be thrown
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
// and we did not copy anything
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
JRT_LEAF(int, Runtime1::arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
  _generic_arraycopy_cnt++;        // Slow-path oop array copy
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
  if (src == NULL || dst == NULL || src_pos < 0 || dst_pos < 0 || length < 0) return ac_failed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
  if (!dst->is_array() || !src->is_array()) return ac_failed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
  if ((unsigned int) arrayOop(src)->length() < (unsigned int)src_pos + (unsigned int)length) return ac_failed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  if ((unsigned int) arrayOop(dst)->length() < (unsigned int)dst_pos + (unsigned int)length) return ac_failed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
  if (length == 0) return ac_ok;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
  if (src->is_typeArray()) {
17370
59a0620561fa 8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents: 16611
diff changeset
  1416
    Klass* klass_oop = src->klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
    if (klass_oop != dst->klass()) return ac_failed;
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13728
diff changeset
  1418
    TypeArrayKlass* klass = TypeArrayKlass::cast(klass_oop);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
    const int l2es = klass->log2_element_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
    const int ihs = klass->array_header_in_bytes() / wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
    char* src_addr = (char*) ((oopDesc**)src + ihs) + (src_pos << l2es);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
    char* dst_addr = (char*) ((oopDesc**)dst + ihs) + (dst_pos << l2es);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
    // Potential problem: memmove is not guaranteed to be word atomic
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
    // Revisit in Merlin
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
    memmove(dst_addr, src_addr, length << l2es);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
    return ac_ok;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
  } else if (src->is_objArray() && dst->is_objArray()) {
7427
d7b79a367474 6985015: C1 needs to support compressed oops
iveresov
parents: 7397
diff changeset
  1428
    if (UseCompressedOops) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1429
      narrowOop *src_addr  = objArrayOop(src)->obj_at_addr<narrowOop>(src_pos);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1430
      narrowOop *dst_addr  = objArrayOop(dst)->obj_at_addr<narrowOop>(dst_pos);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1431
      return obj_arraycopy_work(src, src_addr, dst, dst_addr, length);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
    } else {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1433
      oop *src_addr  = objArrayOop(src)->obj_at_addr<oop>(src_pos);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1434
      oop *dst_addr  = objArrayOop(dst)->obj_at_addr<oop>(dst_pos);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
  1435
      return obj_arraycopy_work(src, src_addr, dst, dst_addr, length);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
  return ac_failed;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
JRT_LEAF(void, Runtime1::primitive_arraycopy(HeapWord* src, HeapWord* dst, int length))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  _primitive_arraycopy_cnt++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
  if (length == 0) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
  // Not guaranteed to be word atomic, but that doesn't matter
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
  // for anything but an oop array, which is covered by oop_arraycopy.
5883
8dc4bdc132d5 6730276: JDI_REGRESSION tests fail with "Error: count must be non-zero" error on x86
kvn
parents: 5882
diff changeset
  1450
  Copy::conjoint_jbytes(src, dst, length);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
JRT_LEAF(void, Runtime1::oop_arraycopy(HeapWord* src, HeapWord* dst, int num))
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1455
  _oop_arraycopy_cnt++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
  if (num == 0) return;
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1459
  BarrierSet* bs = Universe::heap()->barrier_set();
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1460
  assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1461
  assert(bs->has_write_ref_array_pre_opt(), "For pre-barrier as well.");
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1462
  if (UseCompressedOops) {
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1463
    bs->write_ref_array_pre((narrowOop*)dst, num);
7427
d7b79a367474 6985015: C1 needs to support compressed oops
iveresov
parents: 7397
diff changeset
  1464
    Copy::conjoint_oops_atomic((narrowOop*) src, (narrowOop*) dst, num);
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1465
  } else {
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1466
    bs->write_ref_array_pre((oop*)dst, num);
7427
d7b79a367474 6985015: C1 needs to support compressed oops
iveresov
parents: 7397
diff changeset
  1467
    Copy::conjoint_oops_atomic((oop*) src, (oop*) dst, num);
4886
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1468
  }
a2f9a66475b3 6904516: More object array barrier fixes, following up on 6906727
ysr
parents: 4571
diff changeset
  1469
  bs->write_ref_array(dst, num);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
JRT_END
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
12949
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1473
JRT_LEAF(int, Runtime1::is_instance_of(oopDesc* mirror, oopDesc* obj))
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1474
  // had to return int instead of bool, otherwise there may be a mismatch
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1475
  // between the C calling convention and the Java one.
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1476
  // e.g., on x86, GCC may clear only %al when returning a bool false, but
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1477
  // JVM takes the whole %eax as the return value, which may misinterpret
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1478
  // the return value as a boolean true.
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1479
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1480
  assert(mirror != NULL, "should null-check on mirror before calling");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 12949
diff changeset
  1481
  Klass* k = java_lang_Class::as_Klass(mirror);
12949
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1482
  return (k != NULL && obj != NULL && obj->is_a(k)) ? 1 : 0;
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1483
JRT_END
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1484
16611
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1485
JRT_ENTRY(void, Runtime1::predicate_failed_trap(JavaThread* thread))
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1486
  ResourceMark rm;
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1487
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1488
  assert(!TieredCompilation, "incompatible with tiered compilation");
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1489
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1490
  RegisterMap reg_map(thread, false);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1491
  frame runtime_frame = thread->last_frame();
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1492
  frame caller_frame = runtime_frame.sender(&reg_map);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1493
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1494
  nmethod* nm = CodeCache::find_nmethod(caller_frame.pc());
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1495
  assert (nm != NULL, "no more nmethod?");
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1496
  nm->make_not_entrant();
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1497
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1498
  methodHandle m(nm->method());
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1499
  MethodData* mdo = m->method_data();
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1500
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1501
  if (mdo == NULL && !HAS_PENDING_EXCEPTION) {
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1502
    // Build an MDO.  Ignore errors like OutOfMemory;
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1503
    // that simply means we won't have an MDO to update.
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1504
    Method::build_interpreter_method_data(m, THREAD);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1505
    if (HAS_PENDING_EXCEPTION) {
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1506
      assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1507
      CLEAR_PENDING_EXCEPTION;
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1508
    }
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1509
    mdo = m->method_data();
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1510
  }
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1511
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1512
  if (mdo != NULL) {
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1513
    mdo->inc_trap_count(Deoptimization::Reason_none);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1514
  }
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1515
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1516
  if (TracePredicateFailedTraps) {
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1517
    stringStream ss1, ss2;
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1518
    vframeStream vfst(thread);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1519
    methodHandle inlinee = methodHandle(vfst.method());
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1520
    inlinee->print_short_name(&ss1);
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1521
    m->print_short_name(&ss2);
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 23189
diff changeset
  1522
    tty->print_cr("Predicate failed trap in method %s at bci %d inlined in %s at pc " INTPTR_FORMAT, ss1.as_string(), vfst.bci(), ss2.as_string(), p2i(caller_frame.pc()));
16611
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1523
  }
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1524
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1525
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1526
  Deoptimization::deoptimize_frame(thread, caller_frame.id());
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1527
6807a703dd6b 7153771: array bound check elimination for c1
roland
parents: 14488
diff changeset
  1528
JRT_END
12949
e125ba4c16bd 7171890: C1: add Class.isInstance intrinsic
roland
parents: 12377
diff changeset
  1529
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
void Runtime1::print_statistics() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
  tty->print_cr("C1 Runtime statistics:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  tty->print_cr(" _resolve_invoke_virtual_cnt:     %d", SharedRuntime::_resolve_virtual_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
  tty->print_cr(" _resolve_invoke_opt_virtual_cnt: %d", SharedRuntime::_resolve_opt_virtual_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
  tty->print_cr(" _resolve_invoke_static_cnt:      %d", SharedRuntime::_resolve_static_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
  tty->print_cr(" _handle_wrong_method_cnt:        %d", SharedRuntime::_wrong_method_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
  tty->print_cr(" _ic_miss_cnt:                    %d", SharedRuntime::_ic_miss_ctr);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
  tty->print_cr(" _generic_arraycopy_cnt:          %d", _generic_arraycopy_cnt);
9102
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8725
diff changeset
  1539
  tty->print_cr(" _generic_arraycopystub_cnt:      %d", _generic_arraycopystub_cnt);
24944
5b01505efb7a 8033145: Runtime1::arraycopy_count_address uses wrong _oop_arraycopy_cnt variable
thartmann
parents: 24442
diff changeset
  1540
  tty->print_cr(" _byte_arraycopy_cnt:             %d", _byte_arraycopy_stub_cnt);
5b01505efb7a 8033145: Runtime1::arraycopy_count_address uses wrong _oop_arraycopy_cnt variable
thartmann
parents: 24442
diff changeset
  1541
  tty->print_cr(" _short_arraycopy_cnt:            %d", _short_arraycopy_stub_cnt);
5b01505efb7a 8033145: Runtime1::arraycopy_count_address uses wrong _oop_arraycopy_cnt variable
thartmann
parents: 24442
diff changeset
  1542
  tty->print_cr(" _int_arraycopy_cnt:              %d", _int_arraycopy_stub_cnt);
5b01505efb7a 8033145: Runtime1::arraycopy_count_address uses wrong _oop_arraycopy_cnt variable
thartmann
parents: 24442
diff changeset
  1543
  tty->print_cr(" _long_arraycopy_cnt:             %d", _long_arraycopy_stub_cnt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
  tty->print_cr(" _primitive_arraycopy_cnt:        %d", _primitive_arraycopy_cnt);
9102
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8725
diff changeset
  1545
  tty->print_cr(" _oop_arraycopy_cnt (C):          %d", Runtime1::_oop_arraycopy_cnt);
24944
5b01505efb7a 8033145: Runtime1::arraycopy_count_address uses wrong _oop_arraycopy_cnt variable
thartmann
parents: 24442
diff changeset
  1546
  tty->print_cr(" _oop_arraycopy_cnt (stub):       %d", _oop_arraycopy_stub_cnt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
  tty->print_cr(" _arraycopy_slowcase_cnt:         %d", _arraycopy_slowcase_cnt);
9102
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8725
diff changeset
  1548
  tty->print_cr(" _arraycopy_checkcast_cnt:        %d", _arraycopy_checkcast_cnt);
4708a4aefb33 7033154: Improve C1 arraycopy performance
roland
parents: 8725
diff changeset
  1549
  tty->print_cr(" _arraycopy_checkcast_attempt_cnt:%d", _arraycopy_checkcast_attempt_cnt);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
  tty->print_cr(" _new_type_array_slowcase_cnt:    %d", _new_type_array_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
  tty->print_cr(" _new_object_array_slowcase_cnt:  %d", _new_object_array_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
  tty->print_cr(" _new_instance_slowcase_cnt:      %d", _new_instance_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
  tty->print_cr(" _new_multi_array_slowcase_cnt:   %d", _new_multi_array_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
  tty->print_cr(" _monitorenter_slowcase_cnt:      %d", _monitorenter_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
  tty->print_cr(" _monitorexit_slowcase_cnt:       %d", _monitorexit_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
  tty->print_cr(" _patch_code_slowcase_cnt:        %d", _patch_code_slowcase_cnt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
  tty->print_cr(" _throw_range_check_exception_count:            %d:", _throw_range_check_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
  tty->print_cr(" _throw_index_exception_count:                  %d:", _throw_index_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
  tty->print_cr(" _throw_div0_exception_count:                   %d:", _throw_div0_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
  tty->print_cr(" _throw_null_pointer_exception_count:           %d:", _throw_null_pointer_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
  tty->print_cr(" _throw_class_cast_exception_count:             %d:", _throw_class_cast_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
  tty->print_cr(" _throw_incompatible_class_change_error_count:  %d:", _throw_incompatible_class_change_error_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
  tty->print_cr(" _throw_array_store_exception_count:            %d:", _throw_array_store_exception_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
  tty->print_cr(" _throw_count:                                  %d:", _throw_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
  SharedRuntime::print_ic_miss_histogram();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1571
#endif // PRODUCT