hotspot/src/share/vm/oops/method.cpp
author minqi
Wed, 14 Oct 2015 08:12:33 -0700
changeset 33209 43d7a2139756
parent 33148 68fa8b6c4340
child 33230 23bb11a5cf4e
permissions -rw-r--r--
8135284: Remove Method::_method_size field Summary: Remove Method::_method_size to improve memory footprint after JDK-8135085,which increased 4 bytes for 32 platform. Also removed related unused code in SA. Reviewed-by: coleenp, hseigel
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/*
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 * Copyright (c) 1997, 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 "classfile/metadataOnStackMark.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "code/codeCache.hpp"
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#include "code/debugInfoRec.hpp"
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#include "gc/shared/collectedHeap.inline.hpp"
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#include "gc/shared/gcLocker.hpp"
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#include "gc/shared/generation.hpp"
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#include "interpreter/bytecodeStream.hpp"
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#include "interpreter/bytecodeTracer.hpp"
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#include "interpreter/bytecodes.hpp"
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#include "interpreter/interpreter.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "memory/heapInspection.hpp"
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#include "memory/metadataFactory.hpp"
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#include "memory/oopFactory.hpp"
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#include "oops/constMethod.hpp"
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#include "oops/method.hpp"
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#include "oops/methodData.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/symbol.hpp"
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#include "prims/jvmtiExport.hpp"
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#include "prims/methodHandles.hpp"
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#include "prims/nativeLookup.hpp"
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#include "runtime/arguments.hpp"
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#include "runtime/compilationPolicy.hpp"
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#include "runtime/frame.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/orderAccess.inline.hpp"
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#include "runtime/relocator.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/signature.hpp"
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#include "utilities/quickSort.hpp"
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#include "utilities/xmlstream.hpp"
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// Implementation of Method
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Method* Method::allocate(ClassLoaderData* loader_data,
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                         int byte_code_size,
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                         AccessFlags access_flags,
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                         InlineTableSizes* sizes,
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                         ConstMethod::MethodType method_type,
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                         TRAPS) {
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  assert(!access_flags.is_native() || byte_code_size == 0,
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         "native methods should not contain byte codes");
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  ConstMethod* cm = ConstMethod::allocate(loader_data,
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                                          byte_code_size,
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                                          sizes,
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                                          method_type,
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                                          CHECK_NULL);
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  int size = Method::size(access_flags.is_native());
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  return new (loader_data, size, false, MetaspaceObj::MethodType, THREAD) Method(cm, access_flags);
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}
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Method::Method(ConstMethod* xconst, AccessFlags access_flags) {
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  No_Safepoint_Verifier no_safepoint;
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  set_constMethod(xconst);
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  set_access_flags(access_flags);
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#ifdef CC_INTERP
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  set_result_index(T_VOID);
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#endif
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  set_intrinsic_id(vmIntrinsics::_none);
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  set_jfr_towrite(false);
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  set_force_inline(false);
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  set_hidden(false);
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  set_dont_inline(false);
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  set_has_injected_profile(false);
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  set_method_data(NULL);
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  clear_method_counters();
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  set_vtable_index(Method::garbage_vtable_index);
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  // Fix and bury in Method*
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  set_interpreter_entry(NULL); // sets i2i entry and from_int
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  set_adapter_entry(NULL);
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  clear_code(); // from_c/from_i get set to c2i/i2i
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  if (access_flags.is_native()) {
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    clear_native_function();
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    set_signature_handler(NULL);
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  }
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  NOT_PRODUCT(set_compiled_invocation_count(0);)
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}
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// Release Method*.  The nmethod will be gone when we get here because
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// we've walked the code cache.
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void Method::deallocate_contents(ClassLoaderData* loader_data) {
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  MetadataFactory::free_metadata(loader_data, constMethod());
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  set_constMethod(NULL);
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  MetadataFactory::free_metadata(loader_data, method_data());
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  set_method_data(NULL);
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  MetadataFactory::free_metadata(loader_data, method_counters());
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  clear_method_counters();
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  // The nmethod will be gone when we get here.
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  if (code() != NULL) _code = NULL;
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}
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address Method::get_i2c_entry() {
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  assert(_adapter != NULL, "must have");
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  return _adapter->get_i2c_entry();
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}
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address Method::get_c2i_entry() {
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  assert(_adapter != NULL, "must have");
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  return _adapter->get_c2i_entry();
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}
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address Method::get_c2i_unverified_entry() {
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  assert(_adapter != NULL, "must have");
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  return _adapter->get_c2i_unverified_entry();
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}
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char* Method::name_and_sig_as_C_string() const {
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  return name_and_sig_as_C_string(constants()->pool_holder(), name(), signature());
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}
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char* Method::name_and_sig_as_C_string(char* buf, int size) const {
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  return name_and_sig_as_C_string(constants()->pool_holder(), name(), signature(), buf, size);
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}
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char* Method::name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature) {
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  const char* klass_name = klass->external_name();
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  int klass_name_len  = (int)strlen(klass_name);
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  int method_name_len = method_name->utf8_length();
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  int len             = klass_name_len + 1 + method_name_len + signature->utf8_length();
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  char* dest          = NEW_RESOURCE_ARRAY(char, len + 1);
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  strcpy(dest, klass_name);
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  dest[klass_name_len] = '.';
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  strcpy(&dest[klass_name_len + 1], method_name->as_C_string());
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  strcpy(&dest[klass_name_len + 1 + method_name_len], signature->as_C_string());
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  dest[len] = 0;
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  return dest;
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}
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char* Method::name_and_sig_as_C_string(Klass* klass, Symbol* method_name, Symbol* signature, char* buf, int size) {
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  Symbol* klass_name = klass->name();
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  klass_name->as_klass_external_name(buf, size);
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  int len = (int)strlen(buf);
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  if (len < size - 1) {
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    buf[len++] = '.';
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    method_name->as_C_string(&(buf[len]), size - len);
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    len = (int)strlen(buf);
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    signature->as_C_string(&(buf[len]), size - len);
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  }
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  return buf;
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}
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int Method::fast_exception_handler_bci_for(methodHandle mh, KlassHandle ex_klass, int throw_bci, TRAPS) {
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  // exception table holds quadruple entries of the form (beg_bci, end_bci, handler_bci, klass_index)
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  // access exception table
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  ExceptionTable table(mh());
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  int length = table.length();
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  // iterate through all entries sequentially
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  constantPoolHandle pool(THREAD, mh->constants());
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  for (int i = 0; i < length; i ++) {
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    //reacquire the table in case a GC happened
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    ExceptionTable table(mh());
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    int beg_bci = table.start_pc(i);
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    int end_bci = table.end_pc(i);
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    assert(beg_bci <= end_bci, "inconsistent exception table");
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    if (beg_bci <= throw_bci && throw_bci < end_bci) {
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      // exception handler bci range covers throw_bci => investigate further
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      int handler_bci = table.handler_pc(i);
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      int klass_index = table.catch_type_index(i);
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      if (klass_index == 0) {
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        return handler_bci;
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      } else if (ex_klass.is_null()) {
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        return handler_bci;
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      } else {
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        // we know the exception class => get the constraint class
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        // this may require loading of the constraint class; if verification
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        // fails or some other exception occurs, return handler_bci
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        Klass* k = pool->klass_at(klass_index, CHECK_(handler_bci));
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        KlassHandle klass = KlassHandle(THREAD, k);
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        assert(klass.not_null(), "klass not loaded");
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        if (ex_klass->is_subtype_of(klass())) {
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          return handler_bci;
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        }
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      }
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    }
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  }
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  return -1;
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}
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void Method::mask_for(int bci, InterpreterOopMap* mask) {
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  Thread* myThread    = Thread::current();
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  methodHandle h_this(myThread, this);
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#ifdef ASSERT
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  bool has_capability = myThread->is_VM_thread() ||
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                        myThread->is_ConcurrentGC_thread() ||
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                        myThread->is_GC_task_thread();
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  if (!has_capability) {
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    if (!VerifyStack && !VerifyLastFrame) {
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      // verify stack calls this outside VM thread
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      warning("oopmap should only be accessed by the "
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              "VM, GC task or CMS threads (or during debugging)");
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      InterpreterOopMap local_mask;
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      method_holder()->mask_for(h_this, bci, &local_mask);
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      local_mask.print();
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    }
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  }
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#endif
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  method_holder()->mask_for(h_this, bci, mask);
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  return;
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}
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int Method::bci_from(address bcp) const {
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  if (is_native() && bcp == 0) {
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    return 0;
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  }
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#ifdef ASSERT
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  {
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    ResourceMark rm;
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    assert(is_native() && bcp == code_base() || contains(bcp) || is_error_reported(),
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           "bcp doesn't belong to this method: bcp: " INTPTR_FORMAT ", method: %s",
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           p2i(bcp), name_and_sig_as_C_string());
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  }
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#endif
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  return bcp - code_base();
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}
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int Method::validate_bci(int bci) const {
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  return (bci == 0 || bci < code_size()) ? bci : -1;
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}
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// Return bci if it appears to be a valid bcp
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// Return -1 otherwise.
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// Used by profiling code, when invalid data is a possibility.
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// The caller is responsible for validating the Method* itself.
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int Method::validate_bci_from_bcp(address bcp) const {
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  // keep bci as -1 if not a valid bci
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  int bci = -1;
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  if (bcp == 0 || bcp == code_base()) {
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    // code_size() may return 0 and we allow 0 here
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    // the method may be native
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    bci = 0;
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  } else if (contains(bcp)) {
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    bci = bcp - code_base();
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  }
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  // Assert that if we have dodged any asserts, bci is negative.
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  assert(bci == -1 || bci == bci_from(bcp_from(bci)), "sane bci if >=0");
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  return bci;
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}
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address Method::bcp_from(int bci) const {
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  assert((is_native() && bci == 0) || (!is_native() && 0 <= bci && bci < code_size()), "illegal bci: %d", bci);
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  address bcp = code_base() + bci;
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  assert(is_native() && bcp == code_base() || contains(bcp), "bcp doesn't belong to this method");
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  return bcp;
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}
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address Method::bcp_from(address bcp) const {
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  if (is_native() && bcp == NULL) {
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    return code_base();
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  } else {
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    return bcp;
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  }
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}
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int Method::size(bool is_native) {
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  // If native, then include pointers for native_function and signature_handler
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  int extra_bytes = (is_native) ? 2*sizeof(address*) : 0;
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  int extra_words = align_size_up(extra_bytes, BytesPerWord) / BytesPerWord;
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  return align_object_size(header_size() + extra_words);
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}
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Symbol* Method::klass_name() const {
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  Klass* k = method_holder();
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  assert(k->is_klass(), "must be klass");
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  InstanceKlass* ik = (InstanceKlass*) k;
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  return ik->name();
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}
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// Attempt to return method oop to original state.  Clear any pointers
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// (to objects outside the shared spaces).  We won't be able to predict
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// where they should point in a new JVM.  Further initialize some
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// entries now in order allow them to be write protected later.
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void Method::remove_unshareable_info() {
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  unlink_method();
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}
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   318
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bool Method::was_executed_more_than(int n) {
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  // Invocation counter is reset when the Method* is compiled.
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parents:
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   321
  // If the method has compiled code we therefore assume it has
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   322
  // be excuted more than n times.
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   323
  if (is_accessor() || is_empty_method() || (code() != NULL)) {
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parents:
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   324
    // interpreter doesn't bump invocation counter of trivial methods
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parents:
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   325
    // compiler does not bump invocation counter of compiled methods
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   326
    return true;
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970dc585ab63 6953144: Tiered compilation
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parents: 6187
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   327
  }
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11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
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   328
  else if ((method_counters() != NULL &&
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
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   329
            method_counters()->invocation_counter()->carry()) ||
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
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parents: 16631
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   330
           (method_data() != NULL &&
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
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   331
            method_data()->invocation_counter()->carry())) {
1
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parents:
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   332
    // The carry bit is set when the counter overflows and causes
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parents:
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   333
    // a compilation to occur.  We don't know how many times
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parents:
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   334
    // the counter has been reset, so we simply assume it has
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   335
    // been executed more than n times.
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   336
    return true;
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   337
  } else {
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   338
    return invocation_count() > n;
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   339
  }
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   340
}
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   341
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   342
void Method::print_invocation_count() {
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   343
  if (is_static()) tty->print("static ");
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   344
  if (is_final()) tty->print("final ");
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   345
  if (is_synchronized()) tty->print("synchronized ");
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   346
  if (is_native()) tty->print("native ");
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   347
  tty->print("%s::", method_holder()->external_name());
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   348
  name()->print_symbol_on(tty);
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   349
  signature()->print_symbol_on(tty);
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   350
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   351
  if (WizardMode) {
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   352
    // dump the size of the byte codes
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   353
    tty->print(" {%d}", code_size());
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   354
  }
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   355
  tty->cr();
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   356
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   357
  tty->print_cr ("  interpreter_invocation_count: %8d ", interpreter_invocation_count());
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   358
  tty->print_cr ("  invocation_counter:           %8d ", invocation_count());
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parents:
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   359
  tty->print_cr ("  backedge_counter:             %8d ", backedge_count());
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parents: 23491
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   360
#ifndef PRODUCT
1
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   361
  if (CountCompiledCalls) {
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parents:
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   362
    tty->print_cr ("  compiled_invocation_count: %8d ", compiled_invocation_count());
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parents:
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   363
  }
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6851d341ad52 8037970: make PrintMethodData a diagnostic options
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parents: 23491
diff changeset
   364
#endif
1
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parents:
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   365
}
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   366
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   367
// Build a MethodData* object to hold information about this method
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parents:
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   368
// collected in the interpreter.
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   369
void Method::build_interpreter_method_data(methodHandle method, TRAPS) {
27461
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   370
  // Do not profile the method if metaspace has hit an OOM previously
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   371
  // allocating profiling data. Callers clear pending exception so don't
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   372
  // add one here.
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   373
  if (ClassLoaderDataGraph::has_metaspace_oom()) {
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
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   374
    return;
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   375
  }
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   376
7446
9193aa209467 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 7397
diff changeset
   377
  // Do not profile method if current thread holds the pending list lock,
9193aa209467 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 7397
diff changeset
   378
  // which avoids deadlock for acquiring the MethodData_lock.
13738
d67be49a5beb 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 13728
diff changeset
   379
  if (InstanceRefKlass::owns_pending_list_lock((JavaThread*)THREAD)) {
7446
9193aa209467 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 7397
diff changeset
   380
    return;
9193aa209467 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 7397
diff changeset
   381
  }
9193aa209467 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 7397
diff changeset
   382
1
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parents:
diff changeset
   383
  // Grab a lock here to prevent multiple
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   384
  // MethodData*s from being created.
1
489c9b5090e2 Initial load
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parents:
diff changeset
   385
  MutexLocker ml(MethodData_lock, THREAD);
489c9b5090e2 Initial load
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parents:
diff changeset
   386
  if (method->method_data() == NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   387
    ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
27461
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   388
    MethodData* method_data = MethodData::allocate(loader_data, method, THREAD);
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   389
    if (HAS_PENDING_EXCEPTION) {
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   390
      CompileBroker::log_metaspace_failure();
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   391
      ClassLoaderDataGraph::set_metaspace_oom(true);
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   392
      return;   // return the exception (which is cleared)
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   393
    }
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   394
1
489c9b5090e2 Initial load
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parents:
diff changeset
   395
    method->set_method_data(method_data);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
    if (PrintMethodData && (Verbose || WizardMode)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
      tty->print("build_interpreter_method_data for ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
      method->print_name(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
      tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
      // At the end of the run, the MDO, full of data, will be dumped.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   406
MethodCounters* Method::build_method_counters(Method* m, TRAPS) {
27461
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   407
  // Do not profile the method if metaspace has hit an OOM previously
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   408
  if (ClassLoaderDataGraph::has_metaspace_oom()) {
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   409
    return NULL;
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   410
  }
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   411
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   412
  methodHandle mh(m);
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28374
diff changeset
   413
  MethodCounters* counters = MethodCounters::allocate(mh, THREAD);
27461
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   414
  if (HAS_PENDING_EXCEPTION) {
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   415
    CompileBroker::log_metaspace_failure();
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   416
    ClassLoaderDataGraph::set_metaspace_oom(true);
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   417
    return NULL;   // return the exception (which is cleared)
90e9e0f9c0c5 8037842: Failing to allocate MethodCounters and MDO causes a serious performance drop
coleenp
parents: 27247
diff changeset
   418
  }
26799
0c349e16bbe8 8058564: Tiered compilation performance drop in PIT
iveresov
parents: 26586
diff changeset
   419
  if (!mh->init_method_counters(counters)) {
28650
772aaab2582f 8059606: Enable per-method usage of CompileThresholdScaling (per-method compilation thresholds)
zmajo
parents: 28374
diff changeset
   420
    MetadataFactory::free_metadata(mh->method_holder()->class_loader_data(), counters);
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   421
  }
31790
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
   422
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
   423
  if (LogTouchedMethods) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
   424
    mh->log_touched(CHECK_NULL);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
   425
  }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
   426
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   427
  return mh->method_counters();
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   428
}
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
   429
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   430
void Method::cleanup_inline_caches() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
  // The current system doesn't use inline caches in the interpreter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
  // => nothing to do (keep this method around for future use)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   436
int Method::extra_stack_words() {
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
   437
  // not an inline function, to avoid a header dependency on Interpreter
5419
f2e8cc8c12ea 6943304: remove tagged stack interpreter
twisti
parents: 4756
diff changeset
   438
  return extra_stack_entries() * Interpreter::stackElementSize;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
   439
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
   440
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
   441
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   442
void Method::compute_size_of_parameters(Thread *thread) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
   443
  ArgumentSizeComputer asc(signature());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
  set_size_of_parameters(asc.size() + (is_static() ? 0 : 1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
#ifdef CC_INTERP
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   448
void Method::set_result_index(BasicType type)          {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
  _result_index = Interpreter::BasicType_as_index(type);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   453
BasicType Method::result_type() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
  ResultTypeFinder rtf(signature());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
  return rtf.type();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   459
bool Method::is_empty_method() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  return  code_size() == 1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
      && *code_base() == Bytecodes::_return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   465
bool Method::is_vanilla_constructor() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  // Returns true if this method is a vanilla constructor, i.e. an "<init>" "()V" method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
  // which only calls the superclass vanilla constructor and possibly does stores of
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
  // zero constants to local fields:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
  //   aload_0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
  //   invokespecial
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
  //   indexbyte1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  //   indexbyte2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
  // followed by an (optional) sequence of:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  //   aload_0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  //   aconst_null / iconst_0 / fconst_0 / dconst_0
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  //   putfield
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  //   indexbyte1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  //   indexbyte2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  // followed by:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  //
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  //   return
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  assert(name() == vmSymbols::object_initializer_name(),    "Should only be called for default constructors");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  assert(signature() == vmSymbols::void_method_signature(), "Should only be called for default constructors");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  int size = code_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  // Check if size match
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  if (size == 0 || size % 5 != 0) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  address cb = code_base();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
  int last = size - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
  if (cb[0] != Bytecodes::_aload_0 || cb[1] != Bytecodes::_invokespecial || cb[last] != Bytecodes::_return) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
    // Does not call superclass default constructor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  // Check optional sequence
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  for (int i = 4; i < last; i += 5) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
    if (cb[i] != Bytecodes::_aload_0) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
    if (!Bytecodes::is_zero_const(Bytecodes::cast(cb[i+1]))) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
    if (cb[i+2] != Bytecodes::_putfield) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   508
bool Method::compute_has_loops_flag() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   509
  BytecodeStream bcs(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  Bytecodes::Code bc;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
  while ((bc = bcs.next()) >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    switch( bc ) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
      case Bytecodes::_ifeq:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
      case Bytecodes::_ifnull:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
      case Bytecodes::_iflt:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
      case Bytecodes::_ifle:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
      case Bytecodes::_ifne:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
      case Bytecodes::_ifnonnull:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
      case Bytecodes::_ifgt:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
      case Bytecodes::_ifge:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
      case Bytecodes::_if_icmpeq:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
      case Bytecodes::_if_icmpne:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
      case Bytecodes::_if_icmplt:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
      case Bytecodes::_if_icmpgt:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
      case Bytecodes::_if_icmple:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
      case Bytecodes::_if_icmpge:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
      case Bytecodes::_if_acmpeq:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
      case Bytecodes::_if_acmpne:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
      case Bytecodes::_goto:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
      case Bytecodes::_jsr:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
        if( bcs.dest() < bcs.next_bci() ) _access_flags.set_has_loops();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
      case Bytecodes::_goto_w:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
      case Bytecodes::_jsr_w:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
        if( bcs.dest_w() < bcs.next_bci() ) _access_flags.set_has_loops();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
  _access_flags.set_loops_flag_init();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  return _access_flags.has_loops();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   545
bool Method::is_final_method(AccessFlags class_access_flags) const {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   546
  // or "does_not_require_vtable_entry"
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   547
  // default method or overpass can occur, is not final (reuses vtable entry)
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   548
  // private methods get vtable entries for backward class compatibility.
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   549
  if (is_overpass() || is_default_method())  return false;
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   550
  return is_final() || class_access_flags.is_final();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   553
bool Method::is_final_method() const {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   554
  return is_final_method(method_holder()->access_flags());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   557
bool Method::is_default_method() const {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   558
  if (method_holder() != NULL &&
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   559
      method_holder()->is_interface() &&
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   560
      !is_abstract()) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   561
    return true;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   562
  } else {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   563
    return false;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   564
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   565
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   566
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   567
bool Method::can_be_statically_bound(AccessFlags class_access_flags) const {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   568
  if (is_final_method(class_access_flags))  return true;
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   569
#ifdef ASSERT
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   570
  ResourceMark rm;
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   571
  bool is_nonv = (vtable_index() == nonvirtual_vtable_index);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   572
  if (class_access_flags.is_interface()) {
33105
294e48b4f704 8080775: Better argument formatting for assert() and friends
david
parents: 31790
diff changeset
   573
    assert(is_nonv == is_static(), "is_nonv=%s", name_and_sig_as_C_string());
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
   574
  }
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   575
#endif
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   576
  assert(valid_vtable_index() || valid_itable_index(), "method must be linked before we ask this question");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  return vtable_index() == nonvirtual_vtable_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   580
bool Method::can_be_statically_bound() const {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   581
  return can_be_statically_bound(method_holder()->access_flags());
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
   582
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   584
bool Method::is_accessor() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  if (code_size() != 5) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
  if (size_of_parameters() != 1) return false;
7913
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7446
diff changeset
   587
  if (java_code_at(0) != Bytecodes::_aload_0 ) return false;
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7446
diff changeset
   588
  if (java_code_at(1) != Bytecodes::_getfield) return false;
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7446
diff changeset
   589
  if (java_code_at(4) != Bytecodes::_areturn &&
dd096a83bdbb 4926272: methodOopDesc::method_from_bcp is unsafe
never
parents: 7446
diff changeset
   590
      java_code_at(4) != Bytecodes::_ireturn ) return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
27643
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   594
bool Method::is_constant_getter() const {
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   595
  int last_index = code_size() - 1;
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   596
  // Check if the first 1-3 bytecodes are a constant push
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   597
  // and the last bytecode is a return.
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   598
  return (2 <= code_size() && code_size() <= 4 &&
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   599
          Bytecodes::is_const(java_code_at(0)) &&
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   600
          Bytecodes::length_for(java_code_at(0)) == last_index &&
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   601
          Bytecodes::is_return(java_code_at(last_index)));
fe8f95a2d9bc 8056071: compiler/whitebox/IsMethodCompilableTest.java fails with 'method() is not compilable after 3 iterations'
thartmann
parents: 27480
diff changeset
   602
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   604
bool Method::is_initializer() const {
8653
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   605
  return name() == vmSymbols::object_initializer_name() || is_static_initializer();
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   606
}
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   607
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   608
bool Method::has_valid_initializer_flags() const {
8653
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   609
  return (is_static() ||
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
   610
          method_holder()->major_version() < 51);
8653
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   611
}
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   612
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   613
bool Method::is_static_initializer() const {
8653
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   614
  // For classfiles version 51 or greater, ensure that the clinit method is
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   615
  // static.  Non-static methods with the name "<clinit>" are not static
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   616
  // initializers. (older classfiles exempted for backward compatibility)
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   617
  return name() == vmSymbols::class_initializer_name() &&
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8334
diff changeset
   618
         has_valid_initializer_flags();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 21198
diff changeset
   622
objArrayHandle Method::resolved_checked_exceptions_impl(Method* method, TRAPS) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 21198
diff changeset
   623
  int length = method->checked_exceptions_length();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
  if (length == 0) {  // common case
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
    return objArrayHandle(THREAD, Universe::the_empty_class_klass_array());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
  } else {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 21198
diff changeset
   627
    methodHandle h_this(THREAD, method);
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
   628
    objArrayOop m_oop = oopFactory::new_objArray(SystemDictionary::Class_klass(), length, CHECK_(objArrayHandle()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
    objArrayHandle mirrors (THREAD, m_oop);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
    for (int i = 0; i < length; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
      CheckedExceptionElement* table = h_this->checked_exceptions_start(); // recompute on each iteration, not gc safe
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   632
      Klass* k = h_this->constants()->klass_at(table[i].class_cp_index, CHECK_(objArrayHandle()));
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
   633
      assert(k->is_subclass_of(SystemDictionary::Throwable_klass()), "invalid exception class");
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
   634
      mirrors->obj_at_put(i, k->java_mirror());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
    return mirrors;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   641
int Method::line_number_from_bci(int bci) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  if (bci == SynchronizationEntryBCI) bci = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
  assert(bci == 0 || 0 <= bci && bci < code_size(), "illegal bci");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  int best_bci  =  0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  int best_line = -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  if (has_linenumber_table()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
    // The line numbers are a short array of 2-tuples [start_pc, line_number].
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
    // Not necessarily sorted and not necessarily one-to-one.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
    CompressedLineNumberReadStream stream(compressed_linenumber_table());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
    while (stream.read_pair()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
      if (stream.bci() == bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
        // perfect match
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
        return stream.line();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
        // update best_bci/line
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
        if (stream.bci() < bci && stream.bci() >= best_bci) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
          best_bci  = stream.bci();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
          best_line = stream.line();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
  return best_line;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   668
bool Method::is_klass_loaded_by_klass_index(int klass_index) const {
12937
0032fb2caff6 7172967: Eliminate constMethod's _method backpointer to methodOop.
jiangli
parents: 11637
diff changeset
   669
  if( constants()->tag_at(klass_index).is_unresolved_klass() ) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
    Thread *thread = Thread::current();
12937
0032fb2caff6 7172967: Eliminate constMethod's _method backpointer to methodOop.
jiangli
parents: 11637
diff changeset
   671
    Symbol* klass_name = constants()->klass_name_at(klass_index);
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
   672
    Handle loader(thread, method_holder()->class_loader());
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
   673
    Handle prot  (thread, method_holder()->protection_domain());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
    return SystemDictionary::find(klass_name, loader, prot, thread) != NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   681
bool Method::is_klass_loaded(int refinfo_index, bool must_be_resolved) const {
12937
0032fb2caff6 7172967: Eliminate constMethod's _method backpointer to methodOop.
jiangli
parents: 11637
diff changeset
   682
  int klass_index = constants()->klass_ref_index_at(refinfo_index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
  if (must_be_resolved) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
    // Make sure klass is resolved in constantpool.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    if (constants()->tag_at(klass_index).is_unresolved_klass()) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
  return is_klass_loaded_by_klass_index(klass_index);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   691
void Method::set_native_function(address function, bool post_event_flag) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
  assert(function != NULL, "use clear_native_function to unregister natives");
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
   693
  assert(!is_method_handle_intrinsic() || function == SharedRuntime::native_method_throw_unsatisfied_link_error_entry(), "");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  address* native_function = native_function_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
  // We can see racers trying to place the same native function into place. Once
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
  // is plenty.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
  address current = *native_function;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  if (current == function) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  if (post_event_flag && JvmtiExport::should_post_native_method_bind() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
      function != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
    // native_method_throw_unsatisfied_link_error_entry() should only
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
    // be passed when post_event_flag is false.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
    assert(function !=
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
      SharedRuntime::native_method_throw_unsatisfied_link_error_entry(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
      "post_event_flag mis-match");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    // post the bind event, and possible change the bind function
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
    JvmtiExport::post_native_method_bind(this, &function);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  *native_function = function;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  // This function can be called more than once. We must make sure that we always
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  // use the latest registered method -> check if a stub already has been generated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
  // If so, we have to make it not_entrant.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
  nmethod* nm = code(); // Put it into local variable to guard against concurrent updates
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
  if (nm != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
    nm->make_not_entrant();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   722
bool Method::has_native_function() const {
13392
1ef07ae0723d 7187290: nightly failures after JSR 292 lazy method handle update
twisti
parents: 13391
diff changeset
   723
  if (is_method_handle_intrinsic())
1ef07ae0723d 7187290: nightly failures after JSR 292 lazy method handle update
twisti
parents: 13391
diff changeset
   724
    return false;  // special-cased in SharedRuntime::generate_native_wrapper
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
  address func = native_function();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
  return (func != NULL && func != SharedRuntime::native_method_throw_unsatisfied_link_error_entry());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   730
void Method::clear_native_function() {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
   731
  // Note: is_method_handle_intrinsic() is allowed here.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
  set_native_function(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
    SharedRuntime::native_method_throw_unsatisfied_link_error_entry(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    !native_bind_event_is_interesting);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
  clear_code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   738
address Method::critical_native_function() {
11637
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10537
diff changeset
   739
  methodHandle mh(this);
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10537
diff changeset
   740
  return NativeLookup::lookup_critical_entry(mh);
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10537
diff changeset
   741
}
030466036615 7013347: allow crypto functions to be called inline to enhance performance
never
parents: 10537
diff changeset
   742
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   744
void Method::set_signature_handler(address handler) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  address* signature_handler =  signature_handler_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
  *signature_handler = handler;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   750
void Method::print_made_not_compilable(int comp_level, bool is_osr, bool report, const char* reason) {
4756
da88c27a9241 6923043: failed nightly tests which use -XX:+PrintCompilation -Xcomp -XX:CompileOnly
kvn
parents: 4754
diff changeset
   751
  if (PrintCompilation && report) {
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   752
    ttyLocker ttyl;
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   753
    tty->print("made not %scompilable on ", is_osr ? "OSR " : "");
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   754
    if (comp_level == CompLevel_all) {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   755
      tty->print("all levels ");
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   756
    } else {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   757
      tty->print("levels ");
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   758
      for (int i = (int)CompLevel_none; i <= comp_level; i++) {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   759
        tty->print("%d ", i);
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   760
      }
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   761
    }
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   762
    this->print_short_name(tty);
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   763
    int size = this->code_size();
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   764
    if (size > 0) {
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   765
      tty->print(" (%d bytes)", size);
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   766
    }
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   767
    if (reason != NULL) {
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   768
      tty->print("   %s", reason);
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   769
    }
4754
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   770
    tty->cr();
8aef16f24e16 6614597: Performance variability in jvm2008 xml.validation
kvn
parents: 4750
diff changeset
   771
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  if ((TraceDeoptimization || LogCompilation) && (xtty != NULL)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
    ttyLocker ttyl;
25643
4ff52a1e3a23 8049529: LogCompilation: annotate make_not_compilable with compilation level
vlivanov
parents: 25057
diff changeset
   774
    xtty->begin_elem("make_not_compilable thread='" UINTX_FORMAT "' osr='%d' level='%d'",
4ff52a1e3a23 8049529: LogCompilation: annotate make_not_compilable with compilation level
vlivanov
parents: 25057
diff changeset
   775
                     os::current_thread_id(), is_osr, comp_level);
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   776
    if (reason != NULL) {
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   777
      xtty->print(" reason=\'%s\'", reason);
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   778
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   779
    xtty->method(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
    xtty->stamp();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
    xtty->end_elem();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
  }
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   783
}
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   784
19720
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   785
bool Method::is_always_compilable() const {
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   786
  // Generated adapters must be compiled
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   787
  if (is_method_handle_intrinsic() && is_synthetic()) {
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   788
    assert(!is_not_c1_compilable(), "sanity check");
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   789
    assert(!is_not_c2_compilable(), "sanity check");
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   790
    return true;
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   791
  }
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   792
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   793
  return false;
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   794
}
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   795
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   796
bool Method::is_not_compilable(int comp_level) const {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   797
  if (number_of_breakpoints() > 0)
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   798
    return true;
19720
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   799
  if (is_always_compilable())
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   800
    return false;
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   801
  if (comp_level == CompLevel_any)
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   802
    return is_not_c1_compilable() || is_not_c2_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   803
  if (is_c1_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   804
    return is_not_c1_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   805
  if (is_c2_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   806
    return is_not_c2_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   807
  return false;
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   808
}
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   809
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   810
// call this when compiler finds that this method is not compilable
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   811
void Method::set_not_compilable(int comp_level, bool report, const char* reason) {
19720
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   812
  if (is_always_compilable()) {
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   813
    // Don't mark a method which should be always compilable
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   814
    return;
1f9f216fa43e 8023976: assert(!CompilationPolicy::can_be_compiled(this, comp_level)) failed: sanity check
vlivanov
parents: 19335
diff changeset
   815
  }
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   816
  print_made_not_compilable(comp_level, /*is_osr*/ false, report, reason);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   817
  if (comp_level == CompLevel_all) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   818
    set_not_c1_compilable();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   819
    set_not_c2_compilable();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   820
  } else {
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   821
    if (is_c1_compile(comp_level))
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   822
      set_not_c1_compilable();
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   823
    if (is_c2_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   824
      set_not_c2_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   825
  }
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   826
  CompilationPolicy::policy()->disable_compilation(this);
19332
ee4c8c2af356 8022832: Add WB APIs for OSR compilation
iignatyev
parents: 18951
diff changeset
   827
  assert(!CompilationPolicy::can_be_compiled(this, comp_level), "sanity check");
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   828
}
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   829
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   830
bool Method::is_not_osr_compilable(int comp_level) const {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   831
  if (is_not_compilable(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   832
    return true;
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   833
  if (comp_level == CompLevel_any)
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   834
    return is_not_c1_osr_compilable() || is_not_c2_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   835
  if (is_c1_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   836
    return is_not_c1_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   837
  if (is_c2_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   838
    return is_not_c2_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   839
  return false;
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   840
}
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   841
15479
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   842
void Method::set_not_osr_compilable(int comp_level, bool report, const char* reason) {
e3c00ec80145 8006613: adding reason to made_not_compilable
vlivanov
parents: 15110
diff changeset
   843
  print_made_not_compilable(comp_level, /*is_osr*/ true, report, reason);
13891
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   844
  if (comp_level == CompLevel_all) {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   845
    set_not_c1_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   846
    set_not_c2_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   847
  } else {
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   848
    if (is_c1_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   849
      set_not_c1_osr_compilable();
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   850
    if (is_c2_compile(comp_level))
35dabd293e56 7200001: failed C1 OSR compile doesn't get recompiled with C2
twisti
parents: 13882
diff changeset
   851
      set_not_c2_osr_compilable();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
   853
  CompilationPolicy::policy()->disable_compilation(this);
19332
ee4c8c2af356 8022832: Add WB APIs for OSR compilation
iignatyev
parents: 18951
diff changeset
   854
  assert(!CompilationPolicy::can_be_osr_compiled(this, comp_level), "sanity check");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
// Revert to using the interpreter and clear out the nmethod
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   858
void Method::clear_code() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
  // this may be NULL if c2i adapters have not been made yet
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
  // Only should happen at allocate time.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   862
  if (_adapter == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    _from_compiled_entry    = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
    _from_compiled_entry    = _adapter->get_c2i_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  OrderAccess::storestore();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
  _from_interpreted_entry = _i2i_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
  OrderAccess::storestore();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   870
  _code = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
// Called by class data sharing to remove any entry points (which are not shared)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   874
void Method::unlink_method() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
  _code = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   876
  _i2i_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   877
  _from_interpreted_entry = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   878
  if (is_native()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
    *native_function_addr() = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
    set_signature_handler(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   881
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
  NOT_PRODUCT(set_compiled_invocation_count(0);)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
  _adapter = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
  _from_compiled_entry = NULL;
16352
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   885
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   886
  // In case of DumpSharedSpaces, _method_data should always be NULL.
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   887
  //
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   888
  // During runtime (!DumpSharedSpaces), when we are cleaning a
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   889
  // shared class that failed to load, this->link_method() may
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   890
  // have already been called (before an exception happened), so
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   891
  // this->_method_data may not be NULL.
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   892
  assert(!DumpSharedSpaces || _method_data == NULL, "unexpected method data?");
1ff72c6eaa70 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL)
coleenp
parents: 15931
diff changeset
   893
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  set_method_data(NULL);
26799
0c349e16bbe8 8058564: Tiered compilation performance drop in PIT
iveresov
parents: 26586
diff changeset
   895
  clear_method_counters();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
// Called when the method_holder is getting linked. Setup entrypoints so the method
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
// is ready to be called from interpreter, compiler, and vtables.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   900
void Method::link_method(methodHandle h_method, TRAPS) {
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 9134
diff changeset
   901
  // If the code cache is full, we may reenter this function for the
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 9134
diff changeset
   902
  // leftover methods that weren't linked.
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 9134
diff changeset
   903
  if (_i2i_entry != NULL) return;
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 9134
diff changeset
   904
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  assert(_adapter == NULL, "init'd to NULL" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  assert( _code == NULL, "nothing compiled yet" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
489c9b5090e2 Initial load
duke
parents:
diff changeset
   908
  // Setup interpreter entrypoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
   909
  assert(this == h_method(), "wrong h_method()" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
  address entry = Interpreter::entry_for_method(h_method);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
  assert(entry != NULL, "interpreter entry must be non-null");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
  // Sets both _i2i_entry and _from_interpreted_entry
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
  set_interpreter_entry(entry);
17381
a53ac5bf4850 7196277: JSR 292: Two jck/runtime tests crash on java.lang.invoke.MethodHandle.invokeExact
twisti
parents: 17132
diff changeset
   914
a53ac5bf4850 7196277: JSR 292: Two jck/runtime tests crash on java.lang.invoke.MethodHandle.invokeExact
twisti
parents: 17132
diff changeset
   915
  // Don't overwrite already registered native entries.
a53ac5bf4850 7196277: JSR 292: Two jck/runtime tests crash on java.lang.invoke.MethodHandle.invokeExact
twisti
parents: 17132
diff changeset
   916
  if (is_native() && !has_native_function()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
    set_native_function(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
      SharedRuntime::native_method_throw_unsatisfied_link_error_entry(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
      !native_bind_event_is_interesting);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
  // Setup compiler entrypoint.  This is made eagerly, so we do not need
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
  // special handling of vtables.  An alternative is to make adapters more
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
  // lazily by calling make_adapter() from from_compiled_entry() for the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  // normal calls.  For vtable calls life gets more complicated.  When a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
  // call-site goes mega-morphic we need adapters in all methods which can be
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
  // called from the vtable.  We need adapters on such methods that get loaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
  // later.  Ditto for mega-morphic itable calls.  If this proves to be a
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
  // problem we'll make these lazily later.
9972
a91e8e564b52 7049928: VM crashes with "assert(_adapter != NULL) failed: must have" at methodOop.cpp:63
coleenp
parents: 9971
diff changeset
   930
  (void) make_adapters(h_method, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
  // ONLY USE the h_method now as make_adapter may have blocked
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   936
address Method::make_adapters(methodHandle mh, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
  // Adapters for compiled code are made eagerly here.  They are fairly
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
  // small (generally < 100 bytes) and quick to make (and cached and shared)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
  // so making them eagerly shouldn't be too expensive.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
  AdapterHandlerEntry* adapter = AdapterHandlerLibrary::get_adapter(mh);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
  if (adapter == NULL ) {
27920
b34081fac06c 8066448: SmallCodeCacheStartup.java exits with exit code 1
thartmann
parents: 27643
diff changeset
   942
    THROW_MSG_NULL(vmSymbols::java_lang_VirtualMachineError(), "Out of space in CodeCache for adapters");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
  mh->set_adapter_entry(adapter);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
  mh->_from_compiled_entry = adapter->get_c2i_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
  return adapter->get_c2i_entry();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   950
void Method::restore_unshareable_info(TRAPS) {
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   951
  // Since restore_unshareable_info can be called more than once for a method, don't
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   952
  // redo any work.   If this field is restored, there is nothing to do.
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   953
  if (_from_compiled_entry == NULL) {
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   954
    // restore method's vtable by calling a virtual function
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   955
    restore_vtable();
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   956
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   957
    methodHandle mh(THREAD, this);
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   958
    link_method(mh, CHECK);
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   959
  }
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   960
}
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   961
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23534
diff changeset
   962
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
// The verified_code_entry() must be called when a invoke is resolved
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
// on this method.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
489c9b5090e2 Initial load
duke
parents:
diff changeset
   966
// It returns the compiled code entry point, after asserting not null.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
// This function is called after potential safepoints so that nmethod
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
// or adapter that it points to is still live and valid.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
// This function must not hit a safepoint!
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   970
address Method::verified_code_entry() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
  debug_only(No_Safepoint_Verifier nsv;)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
  assert(_from_compiled_entry != NULL, "must be set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
  return _from_compiled_entry;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
// Check that if an nmethod ref exists, it has a backlink to this or no backlink at all
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
// (could be racing a deopt).
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
// Not inline to avoid circular ref.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   979
bool Method::check_code() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   980
  // cached in a register or local.  There's a race on the value of the field.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
  nmethod *code = (nmethod *)OrderAccess::load_ptr_acquire(&_code);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   982
  return code == NULL || (code->method() == NULL) || (code->method() == (Method*)this && !code->is_osr_method());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
// Install compiled code.  Instantly it can execute.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
   986
void Method::set_code(methodHandle mh, nmethod *code) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  assert( code, "use clear_code to remove code" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   988
  assert( mh->check_code(), "" );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   989
489c9b5090e2 Initial load
duke
parents:
diff changeset
   990
  guarantee(mh->adapter() != NULL, "Adapter blob must already exist!");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
  // These writes must happen in this order, because the interpreter will
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  // directly jump to from_interpreted_entry which jumps to an i2c adapter
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
  // which jumps to _from_compiled_entry.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
  mh->_code = code;             // Assign before allowing compiled code to exec
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
  int comp_level = code->comp_level();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
  // In theory there could be a race here. In practice it is unlikely
489c9b5090e2 Initial load
duke
parents:
diff changeset
   999
  // and not worth worrying about.
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1000
  if (comp_level > mh->highest_comp_level()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1001
    mh->set_highest_comp_level(comp_level);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
  OrderAccess::storestore();
6187
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 6064
diff changeset
  1005
#ifdef SHARK
6771
3f9a5f169070 6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents: 6463
diff changeset
  1006
  mh->_from_interpreted_entry = code->insts_begin();
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1007
#else //!SHARK
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
  mh->_from_compiled_entry = code->verified_entry_point();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
  OrderAccess::storestore();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1010
  // Instantly compiled code can execute.
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1011
  if (!mh->is_method_handle_intrinsic())
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1012
    mh->_from_interpreted_entry = mh->get_i2c_entry();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1013
#endif //!SHARK
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1017
bool Method::is_overridden_in(Klass* k) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1018
  InstanceKlass* ik = InstanceKlass::cast(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1019
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1020
  if (ik->is_interface()) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
  // If method is an interface, we skip it - except if it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
  // is a miranda method
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1024
  if (method_holder()->is_interface()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
    // Check that method is not a miranda method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1026
    if (ik->lookup_method(name(), signature()) == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1027
      // No implementation exist - so miranda method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
  assert(ik->is_subclass_of(method_holder()), "should be subklass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
  assert(ik->vtable() != NULL, "vtable should exist");
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
  1035
  if (!has_vtable_index()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1038
    Method* vt_m = ik->method_at_vtable(vtable_index());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1039
    return vt_m != this;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1044
// give advice about whether this Method* should be cached or not
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1045
bool Method::should_not_be_cached() const {
221
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1046
  if (is_old()) {
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1047
    // This method has been redefined. It is either EMCP or obsolete
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1048
    // and we don't want to cache it because that would pin the method
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1049
    // down and prevent it from being collectible if and when it
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1050
    // finishes executing.
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1051
    return true;
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1052
  }
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1053
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1054
  // caching this method should be just fine
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1055
  return false;
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1056
}
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1057
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1058
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1059
/**
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1060
 *  Returns true if this is one of the specially treated methods for
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1061
 *  security related stack walks (like Reflection.getCallerClass).
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1062
 */
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1063
bool Method::is_ignored_by_security_stack_walk() const {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1064
  if (intrinsic_id() == vmIntrinsics::_invoke) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1065
    // This is Method.invoke() -- ignore it
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1066
    return true;
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1067
  }
25057
f38210f84f8c 8031819: Remove legacy jdk checks and code
hseigel
parents: 24457
diff changeset
  1068
  if (method_holder()->is_subclass_of(SystemDictionary::reflect_MethodAccessorImpl_klass())) {
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1069
    // This is an auxilary frame -- ignore it
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1070
    return true;
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1071
  }
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1072
  if (is_method_handle_intrinsic() || is_compiled_lambda_form()) {
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1073
    // This is an internal adapter frame for method handles -- ignore it
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1074
    return true;
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1075
  }
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1076
  return false;
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1077
}
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1078
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1079
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1080
// Constant pool structure for invoke methods:
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1081
enum {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1082
  _imcp_invoke_name = 1,        // utf8: 'invokeExact', etc.
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1083
  _imcp_invoke_signature,       // utf8: (variable Symbol*)
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1084
  _imcp_limit
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1085
};
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1086
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1087
// Test if this method is an MH adapter frame generated by Java code.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1088
// Cf. java/lang/invoke/InvokerBytecodeGenerator
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1089
bool Method::is_compiled_lambda_form() const {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1090
  return intrinsic_id() == vmIntrinsics::_compiledLambdaForm;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1091
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1092
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1093
// Test if this method is an internal MH primitive method.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1094
bool Method::is_method_handle_intrinsic() const {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1095
  vmIntrinsics::ID iid = intrinsic_id();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1096
  return (MethodHandles::is_signature_polymorphic(iid) &&
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1097
          MethodHandles::is_signature_polymorphic_intrinsic(iid));
4581
e89fbd1bcb3d 6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents: 4571
diff changeset
  1098
}
e89fbd1bcb3d 6914206: change way of permission checking for generated MethodHandle adapters
twisti
parents: 4571
diff changeset
  1099
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1100
bool Method::has_member_arg() const {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1101
  vmIntrinsics::ID iid = intrinsic_id();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1102
  return (MethodHandles::is_signature_polymorphic(iid) &&
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1103
          MethodHandles::has_member_arg(iid));
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1104
}
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1105
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1106
// Make an instance of a signature-polymorphic internal MH primitive.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1107
methodHandle Method::make_method_handle_intrinsic(vmIntrinsics::ID iid,
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1108
                                                         Symbol* signature,
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1109
                                                         TRAPS) {
10500
0f9de4fc106e 7082949: JSR 292: missing ResourceMark in methodOopDesc::make_invoke_method
never
parents: 10018
diff changeset
  1110
  ResourceMark rm;
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1111
  methodHandle empty;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1112
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1113
  KlassHandle holder = SystemDictionary::MethodHandle_klass();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1114
  Symbol* name = MethodHandles::signature_polymorphic_intrinsic_name(iid);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1115
  assert(iid == MethodHandles::signature_polymorphic_name_id(name), "");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1116
  if (TraceMethodHandles) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1117
    tty->print_cr("make_method_handle_intrinsic MH.%s%s", name->as_C_string(), signature->as_C_string());
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1118
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1119
9134
189a8c094016 6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents: 9116
diff changeset
  1120
  // invariant:   cp->symbol_at_put is preceded by a refcount increment (more usually a lookup)
189a8c094016 6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents: 9116
diff changeset
  1121
  name->increment_refcount();
189a8c094016 6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents: 9116
diff changeset
  1122
  signature->increment_refcount();
189a8c094016 6987991: JSR 292 phpreboot test/testtracefun2.phpr segfaults
jrose
parents: 9116
diff changeset
  1123
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1124
  int cp_length = _imcp_limit;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1125
  ClassLoaderData* loader_data = holder->class_loader_data();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1126
  constantPoolHandle cp;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1127
  {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1128
    ConstantPool* cp_oop = ConstantPool::allocate(loader_data, cp_length, CHECK_(empty));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1129
    cp = constantPoolHandle(THREAD, cp_oop);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1130
  }
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1131
  cp->set_pool_holder(InstanceKlass::cast(holder()));
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1132
  cp->symbol_at_put(_imcp_invoke_name,       name);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1133
  cp->symbol_at_put(_imcp_invoke_signature,  signature);
15430
7c35f12cf1e5 8006040: NPG: on_stack processing wastes space in ConstantPool
coleenp
parents: 15110
diff changeset
  1134
  cp->set_has_preresolution();
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1135
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1136
  // decide on access bits:  public or not?
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1137
  int flags_bits = (JVM_ACC_NATIVE | JVM_ACC_SYNTHETIC | JVM_ACC_FINAL);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1138
  bool must_be_static = MethodHandles::is_signature_polymorphic_static(iid);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1139
  if (must_be_static)  flags_bits |= JVM_ACC_STATIC;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1140
  assert((flags_bits & JVM_ACC_PUBLIC) == 0, "do not expose these methods");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1141
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1142
  methodHandle m;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1143
  {
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1144
    InlineTableSizes sizes;
15102
0a86564e5f61 8004728: Add hotspot support for parameter reflection
coleenp
parents: 15097
diff changeset
  1145
    Method* m_oop = Method::allocate(loader_data, 0,
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1146
                                     accessFlags_from(flags_bits), &sizes,
15102
0a86564e5f61 8004728: Add hotspot support for parameter reflection
coleenp
parents: 15097
diff changeset
  1147
                                     ConstMethod::NORMAL, CHECK_(empty));
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1148
    m = methodHandle(THREAD, m_oop);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1149
  }
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1150
  m->set_constants(cp());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1151
  m->set_name_index(_imcp_invoke_name);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1152
  m->set_signature_index(_imcp_invoke_signature);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1153
  assert(MethodHandles::is_signature_polymorphic_name(m->name()), "");
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1154
  assert(m->signature() == signature, "");
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1155
#ifdef CC_INTERP
8326
752682831ac6 7018673: Zero: 6953144, 6990754 and 7009756 made some changes which broke Zero
twisti
parents: 8076
diff changeset
  1156
  ResultTypeFinder rtf(signature);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1157
  m->set_result_index(rtf.type());
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1158
#endif
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1159
  m->compute_size_of_parameters(THREAD);
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6453
diff changeset
  1160
  m->init_intrinsic_id();
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1161
  assert(m->is_method_handle_intrinsic(), "");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1162
#ifdef ASSERT
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1163
  if (!MethodHandles::is_signature_polymorphic(m->intrinsic_id()))  m->print();
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1164
  assert(MethodHandles::is_signature_polymorphic(m->intrinsic_id()), "must be an invoker");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1165
  assert(m->intrinsic_id() == iid, "correctly predicted iid");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1166
#endif //ASSERT
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1167
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1168
  // Finally, set up its entry points.
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1169
  assert(m->can_be_statically_bound(), "");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1170
  m->set_vtable_index(Method::nonvirtual_vtable_index);
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1171
  m->link_method(m, CHECK_(empty));
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1172
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3273
diff changeset
  1173
  if (TraceMethodHandles && (Verbose || WizardMode))
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1174
    m->print_on(tty);
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1175
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1176
  return m;
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1177
}
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1178
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1179
Klass* Method::check_non_bcp_klass(Klass* klass) {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
  1180
  if (klass != NULL && klass->class_loader() != NULL) {
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14391
diff changeset
  1181
    if (klass->oop_is_objArray())
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13891
diff changeset
  1182
      klass = ObjArrayKlass::cast(klass)->bottom_klass();
10008
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9972
diff changeset
  1183
    return klass;
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9972
diff changeset
  1184
  }
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9972
diff changeset
  1185
  return NULL;
d84de97ad847 7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents: 9972
diff changeset
  1186
}
2534
08dac9ce0cd7 6655638: dynamic languages need method handles
jrose
parents: 2105
diff changeset
  1187
221
ec745a0fe922 6599425: 4/3 OopMapCache::lookup() can cause later crash or assert() failure
dcubed
parents: 1
diff changeset
  1188
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1189
methodHandle Method::clone_with_new_data(methodHandle m, u_char* new_code, int new_code_length,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
                                                u_char* new_compressed_linenumber_table, int new_compressed_linenumber_size, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
  // Code below does not work for native methods - they should never get rewritten anyway
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
  assert(!m->is_native(), "cannot rewrite native methods");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1193
  // Allocate new Method*
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
  AccessFlags flags = m->access_flags();
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1195
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1196
  ConstMethod* cm = m->constMethod();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1197
  int checked_exceptions_len = cm->checked_exceptions_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1198
  int localvariable_len = cm->localvariable_table_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1199
  int exception_table_len = cm->exception_table_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1200
  int method_parameters_len = cm->method_parameters_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1201
  int method_annotations_len = cm->method_annotations_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1202
  int parameter_annotations_len = cm->parameter_annotations_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1203
  int type_annotations_len = cm->type_annotations_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1204
  int default_annotations_len = cm->default_annotations_length();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1205
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1206
  InlineTableSizes sizes(
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1207
      localvariable_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1208
      new_compressed_linenumber_size,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1209
      exception_table_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1210
      checked_exceptions_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1211
      method_parameters_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1212
      cm->generic_signature_index(),
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1213
      method_annotations_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1214
      parameter_annotations_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1215
      type_annotations_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1216
      default_annotations_len,
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1217
      0);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1218
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13974
diff changeset
  1219
  ClassLoaderData* loader_data = m->method_holder()->class_loader_data();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1220
  Method* newm_oop = Method::allocate(loader_data,
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13974
diff changeset
  1221
                                      new_code_length,
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13974
diff changeset
  1222
                                      flags,
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15595
diff changeset
  1223
                                      &sizes,
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13974
diff changeset
  1224
                                      m->method_type(),
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13974
diff changeset
  1225
                                      CHECK_(methodHandle()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
  methodHandle newm (THREAD, newm_oop);
1894
5c343868d071 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 670
diff changeset
  1227
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1228
  // Create a shallow copy of Method part, but be careful to preserve the new ConstMethod*
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1229
  ConstMethod* newcm = newm->constMethod();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1230
  int new_const_method_size = newm->constMethod()->size();
8296
b1c2163e4e59 6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents: 8076
diff changeset
  1231
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1232
  memcpy(newm(), m(), sizeof(Method));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1233
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1234
  // Create shallow copy of ConstMethod.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1235
  memcpy(newcm, m->constMethod(), sizeof(ConstMethod));
8296
b1c2163e4e59 6912621: iCMS: Error: assert(_markBitMap.isMarked(addr + 1),"Missing Printezis bit?")
ysr
parents: 8076
diff changeset
  1236
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  // Reset correct method/const method, method size, and parameter info
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  newm->set_constMethod(newcm);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  newm->constMethod()->set_code_size(new_code_length);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  newm->constMethod()->set_constMethod_size(new_const_method_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  assert(newm->code_size() == new_code_length, "check");
18951
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1242
  assert(newm->method_parameters_length() == method_parameters_len, "check");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  assert(newm->checked_exceptions_length() == checked_exceptions_len, "check");
13285
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1244
  assert(newm->exception_table_length() == exception_table_len, "check");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
  assert(newm->localvariable_table_length() == localvariable_len, "check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  // Copy new byte codes
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  memcpy(newm->code_base(), new_code, new_code_length);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  // Copy line number table
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
  if (new_compressed_linenumber_size > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
    memcpy(newm->compressed_linenumber_table(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
           new_compressed_linenumber_table,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
           new_compressed_linenumber_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  }
18951
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1254
  // Copy method_parameters
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1255
  if (method_parameters_len > 0) {
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1256
    memcpy(newm->method_parameters_start(),
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1257
           m->method_parameters_start(),
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1258
           method_parameters_len * sizeof(MethodParametersElement));
eb19defdc889 8019632: Method parameters are not copied in clone_with_new_data
emc
parents: 18439
diff changeset
  1259
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
  // Copy checked_exceptions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
  if (checked_exceptions_len > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
    memcpy(newm->checked_exceptions_start(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
           m->checked_exceptions_start(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
           checked_exceptions_len * sizeof(CheckedExceptionElement));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  }
13285
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1266
  // Copy exception table
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1267
  if (exception_table_len > 0) {
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1268
    memcpy(newm->exception_table_start(),
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1269
           m->exception_table_start(),
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1270
           exception_table_len * sizeof(ExceptionTableElement));
5c78ade8d6a3 7181632: nsk classLoad001_14 failure and CompileTheWorld crash after 7178145.
jiangli
parents: 13282
diff changeset
  1271
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
  // Copy local variable number table
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
  if (localvariable_len > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
    memcpy(newm->localvariable_table_start(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
           m->localvariable_table_start(),
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
           localvariable_len * sizeof(LocalVariableTableElement));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1278
  // Copy stackmap table
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1279
  if (m->has_stackmap_table()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1280
    int code_attribute_length = m->stackmap_data()->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1281
    Array<u1>* stackmap_data =
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1282
      MetadataFactory::new_array<u1>(loader_data, code_attribute_length, 0, CHECK_NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1283
    memcpy((void*)stackmap_data->adr_at(0),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1284
           (void*)m->stackmap_data()->adr_at(0), code_attribute_length);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1285
    newm->set_stackmap_data(stackmap_data);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1286
  }
1894
5c343868d071 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 670
diff changeset
  1287
16588
7e90e795813e 8009531: Crash when redefining class with annotated method
coleenp
parents: 16352
diff changeset
  1288
  // copy annotations over to new method
7e90e795813e 8009531: Crash when redefining class with annotated method
coleenp
parents: 16352
diff changeset
  1289
  newcm->copy_annotations_from(cm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
  return newm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1293
vmSymbols::SID Method::klass_id_for_intrinsics(Klass* holder) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
  // if loader is not the default loader (i.e., != NULL), we can't know the intrinsics
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
  // because we are not loading from core libraries
14132
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
  1296
  // exception: the AES intrinsics come from lib/ext/sunjce_provider.jar
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
  1297
  // which does not use the class default class loader so we check for its loader here
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1298
  InstanceKlass* ik = InstanceKlass::cast(holder);
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1299
  if ((ik->class_loader() != NULL) && !SystemDictionary::is_ext_class_loader(ik->class_loader())) {
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1300
    return vmSymbols::NO_SID;   // regardless of name, no intrinsics here
14132
3c1437abcefd 7184394: add intrinsics to use AES instructions
kvn
parents: 13974
diff changeset
  1301
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
  // see if the klass name is well-known:
16617
6235d2c7549f 7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents: 16352
diff changeset
  1304
  Symbol* klass_name = ik->name();
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1305
  return vmSymbols::find_sid(klass_name);
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1306
}
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1307
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1308
void Method::init_intrinsic_id() {
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1309
  assert(_intrinsic_id == vmIntrinsics::_none, "do this just once");
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1310
  const uintptr_t max_id_uint = right_n_bits((int)(sizeof(_intrinsic_id) * BitsPerByte));
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1311
  assert((uintptr_t)vmIntrinsics::ID_LIMIT <= max_id_uint, "else fix size");
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6453
diff changeset
  1312
  assert(intrinsic_id_size_in_bytes() == sizeof(_intrinsic_id), "");
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1313
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1314
  // the klass name is well-known:
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1315
  vmSymbols::SID klass_id = klass_id_for_intrinsics(method_holder());
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1316
  assert(klass_id != vmSymbols::NO_SID, "caller responsibility");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1318
  // ditto for method and signature:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1319
  vmSymbols::SID  name_id = vmSymbols::find_sid(name());
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1320
  if (klass_id != vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_MethodHandle)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1321
      && name_id == vmSymbols::NO_SID)
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1322
    return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1323
  vmSymbols::SID   sig_id = vmSymbols::find_sid(signature());
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8675
diff changeset
  1324
  if (klass_id != vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_MethodHandle)
6463
f4362c8da849 6939224: MethodHandle.invokeGeneric needs to perform the correct set of conversions
jrose
parents: 6453
diff changeset
  1325
      && sig_id == vmSymbols::NO_SID)  return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
  jshort flags = access_flags().as_short();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1328
  vmIntrinsics::ID id = vmIntrinsics::find_id(klass_id, name_id, sig_id, flags);
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1329
  if (id != vmIntrinsics::_none) {
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1330
    set_intrinsic_id(id);
27450
603dbcf4f547 8054492: Casting can result in redundant null checks in generated code
kvn
parents: 27247
diff changeset
  1331
    if (id == vmIntrinsics::_Class_cast) {
603dbcf4f547 8054492: Casting can result in redundant null checks in generated code
kvn
parents: 27247
diff changeset
  1332
      // Even if the intrinsic is rejected, we want to inline this simple method.
603dbcf4f547 8054492: Casting can result in redundant null checks in generated code
kvn
parents: 27247
diff changeset
  1333
      set_force_inline(true);
603dbcf4f547 8054492: Casting can result in redundant null checks in generated code
kvn
parents: 27247
diff changeset
  1334
    }
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1335
    return;
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1336
  }
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1337
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
  // A few slightly irregular cases:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
  switch (klass_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
  case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_StrictMath):
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
    // Second chance: check in regular Math.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
    switch (name_id) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
    case vmSymbols::VM_SYMBOL_ENUM_NAME(min_name):
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1344
    case vmSymbols::VM_SYMBOL_ENUM_NAME(max_name):
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1345
    case vmSymbols::VM_SYMBOL_ENUM_NAME(sqrt_name):
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1346
      // pretend it is the corresponding method in the non-strict class:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1347
      klass_id = vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_Math);
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1348
      id = vmIntrinsics::find_id(klass_id, name_id, sig_id, flags);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1350
    }
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1351
    break;
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1352
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1353
  // Signature-polymorphic methods: MethodHandle.invoke*, InvokeDynamic.*.
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8675
diff changeset
  1354
  case vmSymbols::VM_SYMBOL_ENUM_NAME(java_lang_invoke_MethodHandle):
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1355
    if (!is_native())  break;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1356
    id = MethodHandles::signature_polymorphic_name_id(method_holder(), name());
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1357
    if (is_static() != MethodHandles::is_signature_polymorphic_static(id))
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1358
      id = vmIntrinsics::_none;
5420
586d3988e72b 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 5419
diff changeset
  1359
    break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
3273
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1362
  if (id != vmIntrinsics::_none) {
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1363
    // Set up its iid.  It is an alias method.
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1364
    set_intrinsic_id(id);
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1365
    return;
6acf7084b1d3 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 2570
diff changeset
  1366
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1369
// These two methods are static since a GC may move the Method
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1370
bool Method::load_signature_classes(methodHandle m, TRAPS) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1371
  if (THREAD->is_Compiler_thread()) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1372
    // There is nothing useful this routine can do from within the Compile thread.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1373
    // Hopefully, the signature contains only well-known classes.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1374
    // We could scan for this and return true/false, but the caller won't care.
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1375
    return false;
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1376
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
  bool sig_is_loaded = true;
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1378
  Handle class_loader(THREAD, m->method_holder()->class_loader());
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1379
  Handle protection_domain(THREAD, m->method_holder()->protection_domain());
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1380
  ResourceMark rm(THREAD);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1381
  Symbol*  signature = m->signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
  for(SignatureStream ss(signature); !ss.is_done(); ss.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
    if (ss.is_object()) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1384
      Symbol* sym = ss.as_symbol(CHECK_(false));
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1385
      Symbol*  name  = sym;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1386
      Klass* klass = SystemDictionary::resolve_or_null(name, class_loader,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
                                             protection_domain, THREAD);
351
74ef5746f624 6624474: Server compiler generates unexpected LinkageError
rasbold
parents: 221
diff changeset
  1388
      // We are loading classes eagerly. If a ClassNotFoundException or
74ef5746f624 6624474: Server compiler generates unexpected LinkageError
rasbold
parents: 221
diff changeset
  1389
      // a LinkageError was generated, be sure to ignore it.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
      if (HAS_PENDING_EXCEPTION) {
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
  1391
        if (PENDING_EXCEPTION->is_a(SystemDictionary::ClassNotFoundException_klass()) ||
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
  1392
            PENDING_EXCEPTION->is_a(SystemDictionary::LinkageError_klass())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
          CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
          return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
      if( klass == NULL) { sig_is_loaded = false; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  return sig_is_loaded;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1404
bool Method::has_unloaded_classes_in_signature(methodHandle m, TRAPS) {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1405
  Handle class_loader(THREAD, m->method_holder()->class_loader());
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1406
  Handle protection_domain(THREAD, m->method_holder()->protection_domain());
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1407
  ResourceMark rm(THREAD);
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1408
  Symbol*  signature = m->signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
  for(SignatureStream ss(signature); !ss.is_done(); ss.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
    if (ss.type() == T_OBJECT) {
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1411
      Symbol* name = ss.as_symbol_or_null();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1412
      if (name == NULL) return true;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1413
      Klass* klass = SystemDictionary::find(name, class_loader, protection_domain, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
      if (klass == NULL) return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
// Exposed so field engineers can debug VM
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1421
void Method::print_short_name(outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
#ifdef PRODUCT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1424
  st->print(" %s::", method_holder()->external_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
#else
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1426
  st->print(" %s::", method_holder()->internal_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
  name()->print_symbol_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
  if (WizardMode) signature()->print_symbol_on(st);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1430
  else if (MethodHandles::is_signature_polymorphic(intrinsic_id()))
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13285
diff changeset
  1431
    MethodHandles::print_as_basic_type_signature_on(st, signature(), true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
10002
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9134
diff changeset
  1434
// Comparer for sorting an object array containing
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1435
// Method*s.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1436
static int method_comparator(Method* a, Method* b) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1437
  return a->name()->fast_compare(b->name());
10537
23539f11e110 7090259: Fix hotspot sources to build with old compilers
kvn
parents: 10500
diff changeset
  1438
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
// This is only done during class loading, so it is OK to assume method_idnum matches the methods() array
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1441
// default_methods also uses this without the ordering for fast find_method
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1442
void Method::sort_methods(Array<Method*>* methods, bool idempotent, bool set_idnums) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1443
  int length = methods->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  if (length > 1) {
10002
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9134
diff changeset
  1445
    {
2d83be3a0927 7016112: CMS: crash during promotion testing
brutisso
parents: 9134
diff changeset
  1446
      No_Safepoint_Verifier nsv;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1447
      QuickSort::sort<Method*>(methods->data(), length, method_comparator, idempotent);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1449
    // Reset method ordering
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1450
    if (set_idnums) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1451
      for (int i = 0; i < length; i++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1452
        Method* m = methods->at(i);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1453
        m->set_method_idnum(i);
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28650
diff changeset
  1454
        m->set_orig_method_idnum(i);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20290
diff changeset
  1455
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1458
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
//-----------------------------------------------------------------------------------
15591
b8aa0577f137 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 15437
diff changeset
  1461
// Non-product code unless JVM/TI needs it
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
15591
b8aa0577f137 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 15437
diff changeset
  1463
#if !defined(PRODUCT) || INCLUDE_JVMTI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1464
class SignatureTypePrinter : public SignatureTypeNames {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
 private:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
  outputStream* _st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
  bool _use_separator;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
  void type_name(const char* name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1470
    if (_use_separator) _st->print(", ");
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24351
diff changeset
  1471
    _st->print("%s", name);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
    _use_separator = true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1475
 public:
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7913
diff changeset
  1476
  SignatureTypePrinter(Symbol* signature, outputStream* st) : SignatureTypeNames(signature) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
    _st = st;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
    _use_separator = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
  void print_parameters()              { _use_separator = false; iterate_parameters(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
  void print_returntype()              { _use_separator = false; iterate_returntype(); }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1485
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1486
void Method::print_name(outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  Thread *thread = Thread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
  ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
  SignatureTypePrinter sig(signature(), st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
  st->print("%s ", is_static() ? "static" : "virtual");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
  sig.print_returntype();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1492
  st->print(" %s.", method_holder()->internal_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
  name()->print_symbol_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1494
  st->print("(");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1495
  sig.print_parameters();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1496
  st->print(")");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
}
15591
b8aa0577f137 7182152: Instrumentation hot swap test incorrect monitor count
dcubed
parents: 15437
diff changeset
  1498
#endif // !PRODUCT || INCLUDE_JVMTI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1501
void Method::print_codes_on(outputStream* st) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
  print_codes_on(0, code_size(), st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1504
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1505
void Method::print_codes_on(int from, int to, outputStream* st) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
  Thread *thread = Thread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1507
  ResourceMark rm(thread);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1508
  methodHandle mh (thread, (Method*)this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1509
  BytecodeStream s(mh);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1510
  s.set_interval(from, to);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1511
  BytecodeTracer::set_closure(BytecodeTracer::std_closure());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
  while (s.next() >= 0) BytecodeTracer::trace(mh, s.bcp(), st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1513
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1514
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1515
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1516
// Simple compression of line number tables. We use a regular compressed stream, except that we compress deltas
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1517
// between (bci,line) pairs since they are smaller. If (bci delta, line delta) fits in (5-bit unsigned, 3-bit unsigned)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
// we save it as one byte, otherwise we write a 0xFF escape character and use regular compression. 0x0 is used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
// as end-of-stream terminator.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1521
void CompressedLineNumberWriteStream::write_pair_regular(int bci_delta, int line_delta) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1522
  // bci and line number does not compress into single byte.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1523
  // Write out escape character and use regular compression for bci and line number.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
  write_byte((jubyte)0xFF);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
  write_signed_int(bci_delta);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
  write_signed_int(line_delta);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1529
// See comment in method.hpp which explains why this exists.
8303
81a0b8663748 7017824: Add support for creating 64-bit Visual Studio projects
sla
parents: 8076
diff changeset
  1530
#if defined(_M_AMD64) && _MSC_VER >= 1400
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
#pragma optimize("", off)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1532
void CompressedLineNumberWriteStream::write_pair(int bci, int line) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  write_pair_inline(bci, line);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
#pragma optimize("", on)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
CompressedLineNumberReadStream::CompressedLineNumberReadStream(u_char* buffer) : CompressedReadStream(buffer) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
  _bci = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
  _line = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
bool CompressedLineNumberReadStream::read_pair() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
  jubyte next = read_byte();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
  // Check for terminator
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
  if (next == 0) return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
  if (next == 0xFF) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
    // Escape character, regular compression used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
    _bci  += read_signed_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
    _line += read_signed_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
    // Single byte compression used
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
    _bci  += next >> 3;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
    _line += next & 0x7;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1561
Bytecodes::Code Method::orig_bytecode_at(int bci) const {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1562
  BreakpointInfo* bp = method_holder()->breakpoints();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
  for (; bp != NULL; bp = bp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
    if (bp->match(this, bci)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
      return bp->orig_bytecode();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
  }
21198
dd647e8d1d72 8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents: 20391
diff changeset
  1568
  {
dd647e8d1d72 8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents: 20391
diff changeset
  1569
    ResourceMark rm;
33105
294e48b4f704 8080775: Better argument formatting for assert() and friends
david
parents: 31790
diff changeset
  1570
    fatal("no original bytecode found in %s at bci %d", name_and_sig_as_C_string(), bci);
21198
dd647e8d1d72 8026328: Setting a breakpoint on invokedynamic crashes the JVM
twisti
parents: 20391
diff changeset
  1571
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1572
  return Bytecodes::_shouldnotreachhere;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1573
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1574
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1575
void Method::set_orig_bytecode_at(int bci, Bytecodes::Code code) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1576
  assert(code != Bytecodes::_breakpoint, "cannot patch breakpoints this way");
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1577
  BreakpointInfo* bp = method_holder()->breakpoints();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1578
  for (; bp != NULL; bp = bp->next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1579
    if (bp->match(this, bci)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1580
      bp->set_orig_bytecode(code);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1581
      // and continue, in case there is more than one
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1582
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1583
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1584
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1585
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1586
void Method::set_breakpoint(int bci) {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1587
  InstanceKlass* ik = method_holder();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1588
  BreakpointInfo *bp = new BreakpointInfo(this, bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1589
  bp->set_next(ik->breakpoints());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
  ik->set_breakpoints(bp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
  // do this last:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1592
  bp->set(this);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1593
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1594
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1595
static void clear_matches(Method* m, int bci) {
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1596
  InstanceKlass* ik = m->method_holder();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
  BreakpointInfo* prev_bp = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
  BreakpointInfo* next_bp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
  for (BreakpointInfo* bp = ik->breakpoints(); bp != NULL; bp = next_bp) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
    next_bp = bp->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1601
    // bci value of -1 is used to delete all breakpoints in method m (ex: clear_all_breakpoint).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1602
    if (bci >= 0 ? bp->match(m, bci) : bp->match(m)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1603
      // do this first:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1604
      bp->clear(m);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1605
      // unhook it
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1606
      if (prev_bp != NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1607
        prev_bp->set_next(next_bp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1608
      else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1609
        ik->set_breakpoints(next_bp);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1610
      delete bp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1611
      // When class is redefined JVMTI sets breakpoint in all versions of EMCP methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1612
      // at same location. So we have multiple matching (method_index and bci)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1613
      // BreakpointInfo nodes in BreakpointInfo list. We should just delete one
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1614
      // breakpoint for clear_breakpoint request and keep all other method versions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1615
      // BreakpointInfo for future clear_breakpoint request.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1616
      // bcivalue of -1 is used to clear all breakpoints (see clear_all_breakpoints)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1617
      // which is being called when class is unloaded. We delete all the Breakpoint
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1618
      // information for all versions of method. We may not correctly restore the original
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
      // bytecode in all method versions, but that is ok. Because the class is being unloaded
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1620
      // so these methods won't be used anymore.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1621
      if (bci >= 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1622
        break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1623
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1624
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1625
      // This one is a keeper.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1626
      prev_bp = bp;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1627
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1628
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1629
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1630
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1631
void Method::clear_breakpoint(int bci) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1632
  assert(bci >= 0, "");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1633
  clear_matches(this, bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1634
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1635
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1636
void Method::clear_all_breakpoints() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1637
  clear_matches(this, -1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1638
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1640
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1641
int Method::invocation_count() {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1642
  MethodCounters *mcs = method_counters();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1643
  if (TieredCompilation) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1644
    MethodData* const mdo = method_data();
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1645
    if (((mcs != NULL) ? mcs->invocation_counter()->carry() : false) ||
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1646
        ((mdo != NULL) ? mdo->invocation_counter()->carry() : false)) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1647
      return InvocationCounter::count_limit;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1648
    } else {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1649
      return ((mcs != NULL) ? mcs->invocation_counter()->count() : 0) +
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1650
             ((mdo != NULL) ? mdo->invocation_counter()->count() : 0);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1651
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1652
  } else {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1653
    return (mcs == NULL) ? 0 : mcs->invocation_counter()->count();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1654
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1655
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1656
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1657
int Method::backedge_count() {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1658
  MethodCounters *mcs = method_counters();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1659
  if (TieredCompilation) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1660
    MethodData* const mdo = method_data();
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1661
    if (((mcs != NULL) ? mcs->backedge_counter()->carry() : false) ||
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1662
        ((mdo != NULL) ? mdo->backedge_counter()->carry() : false)) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1663
      return InvocationCounter::count_limit;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1664
    } else {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1665
      return ((mcs != NULL) ? mcs->backedge_counter()->count() : 0) +
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1666
             ((mdo != NULL) ? mdo->backedge_counter()->count() : 0);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1667
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1668
  } else {
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1669
    return (mcs == NULL) ? 0 : mcs->backedge_counter()->count();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1670
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1671
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1672
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1673
int Method::highest_comp_level() const {
26586
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1674
  const MethodCounters* mcs = method_counters();
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1675
  if (mcs != NULL) {
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1676
    return mcs->highest_comp_level();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1677
  } else {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1678
    return CompLevel_none;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1679
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1680
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1681
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1682
int Method::highest_osr_comp_level() const {
26586
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1683
  const MethodCounters* mcs = method_counters();
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1684
  if (mcs != NULL) {
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1685
    return mcs->highest_osr_comp_level();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1686
  } else {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1687
    return CompLevel_none;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1688
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1689
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1690
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1691
void Method::set_highest_comp_level(int level) {
26586
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1692
  MethodCounters* mcs = method_counters();
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1693
  if (mcs != NULL) {
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1694
    mcs->set_highest_comp_level(level);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1695
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1696
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1697
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1698
void Method::set_highest_osr_comp_level(int level) {
26586
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1699
  MethodCounters* mcs = method_counters();
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1700
  if (mcs != NULL) {
992efa57514f 8058184: Move _highest_comp_level and _highest_osr_comp_level from MethodData to MethodCounters
iveresov
parents: 25895
diff changeset
  1701
    mcs->set_highest_osr_comp_level(level);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1702
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1703
}
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6187
diff changeset
  1704
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1705
BreakpointInfo::BreakpointInfo(Method* m, int bci) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1706
  _bci = bci;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1707
  _name_index = m->name_index();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1708
  _signature_index = m->signature_index();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1709
  _orig_bytecode = (Bytecodes::Code) *m->bcp_from(_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1710
  if (_orig_bytecode == Bytecodes::_breakpoint)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1711
    _orig_bytecode = m->orig_bytecode_at(_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1712
  _next = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1713
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1714
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1715
void BreakpointInfo::set(Method* method) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1716
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1717
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1718
    Bytecodes::Code code = (Bytecodes::Code) *method->bcp_from(_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1719
    if (code == Bytecodes::_breakpoint)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1720
      code = method->orig_bytecode_at(_bci);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
    assert(orig_bytecode() == code, "original bytecode must be the same");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1722
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1723
#endif
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1724
  Thread *thread = Thread::current();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1725
  *method->bcp_from(_bci) = Bytecodes::_breakpoint;
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1726
  method->incr_number_of_breakpoints(thread);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1727
  SystemDictionary::notice_modification();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1729
    // Deoptimize all dependents on this method
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
    HandleMark hm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1731
    methodHandle mh(thread, method);
28374
0558e321c027 8067836: The Universe::flush_foo methods belong in CodeCache.
coleenp
parents: 27923
diff changeset
  1732
    CodeCache::flush_dependents_on_method(mh);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1733
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1734
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1735
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1736
void BreakpointInfo::clear(Method* method) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
  *method->bcp_from(_bci) = orig_bytecode();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1738
  assert(method->number_of_breakpoints() > 0, "must not go negative");
17000
11bf92e571a2 8010862: The Method counter fields used for profiling can be allocated lazily.
jiangli
parents: 16631
diff changeset
  1739
  method->decr_number_of_breakpoints(Thread::current());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1740
}
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1741
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1742
// jmethodID handling
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1743
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1744
// This is a block allocating object, sort of like JNIHandleBlock, only a
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1745
// lot simpler.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1746
// It's allocated on the CHeap because once we allocate a jmethodID, we can
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1747
// never get rid of it.
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1748
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1749
static const int min_block_size = 8;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1750
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1751
class JNIMethodBlockNode : public CHeapObj<mtClass> {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1752
  friend class JNIMethodBlock;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1753
  Method**        _methods;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1754
  int             _number_of_methods;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1755
  int             _top;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1756
  JNIMethodBlockNode* _next;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1757
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1758
 public:
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1759
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1760
  JNIMethodBlockNode(int num_methods = min_block_size);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1761
27880
afb974a04396 8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents: 27643
diff changeset
  1762
  ~JNIMethodBlockNode() { FREE_C_HEAP_ARRAY(Method*, _methods); }
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1763
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1764
  void ensure_methods(int num_addl_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1765
    if (_top < _number_of_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1766
      num_addl_methods -= _number_of_methods - _top;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1767
      if (num_addl_methods <= 0) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1768
        return;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1769
      }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1770
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1771
    if (_next == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1772
      _next = new JNIMethodBlockNode(MAX2(num_addl_methods, min_block_size));
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1773
    } else {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1774
      _next->ensure_methods(num_addl_methods);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1775
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1776
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1777
};
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1778
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1779
class JNIMethodBlock : public CHeapObj<mtClass> {
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1780
  JNIMethodBlockNode _head;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1781
  JNIMethodBlockNode *_last_free;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1782
 public:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1783
  static Method* const _free_method;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1784
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1785
  JNIMethodBlock(int initial_capacity = min_block_size)
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1786
      : _head(initial_capacity), _last_free(&_head) {}
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1787
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1788
  void ensure_methods(int num_addl_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1789
    _last_free->ensure_methods(num_addl_methods);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1790
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1791
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1792
  Method** add_method(Method* m) {
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1793
    for (JNIMethodBlockNode* b = _last_free; b != NULL; b = b->_next) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1794
      if (b->_top < b->_number_of_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1795
        // top points to the next free entry.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1796
        int i = b->_top;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1797
        b->_methods[i] = m;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1798
        b->_top++;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1799
        _last_free = b;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1800
        return &(b->_methods[i]);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1801
      } else if (b->_top == b->_number_of_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1802
        // if the next free entry ran off the block see if there's a free entry
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1803
        for (int i = 0; i < b->_number_of_methods; i++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1804
          if (b->_methods[i] == _free_method) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1805
            b->_methods[i] = m;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1806
            _last_free = b;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1807
            return &(b->_methods[i]);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1808
          }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1809
        }
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1810
        // Only check each block once for frees.  They're very unlikely.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1811
        // Increment top past the end of the block.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1812
        b->_top++;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1813
      }
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1814
      // need to allocate a next block.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1815
      if (b->_next == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1816
        b->_next = _last_free = new JNIMethodBlockNode();
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1817
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1818
    }
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1819
    guarantee(false, "Should always allocate a free block");
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1820
    return NULL;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1821
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1822
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1823
  bool contains(Method** m) {
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1824
    if (m == NULL) return false;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1825
    for (JNIMethodBlockNode* b = &_head; b != NULL; b = b->_next) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1826
      if (b->_methods <= m && m < b->_methods + b->_number_of_methods) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1827
        // This is a bit of extra checking, for two reasons.  One is
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1828
        // that contains() deals with pointers that are passed in by
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1829
        // JNI code, so making sure that the pointer is aligned
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1830
        // correctly is valuable.  The other is that <= and > are
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1831
        // technically not defined on pointers, so the if guard can
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1832
        // pass spuriously; no modern compiler is likely to make that
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1833
        // a problem, though (and if one did, the guard could also
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1834
        // fail spuriously, which would be bad).
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1835
        ptrdiff_t idx = m - b->_methods;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1836
        if (b->_methods + idx == m) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1837
          return true;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1838
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1839
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1840
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1841
    return false;  // not found
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1842
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1843
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1844
  // Doesn't really destroy it, just marks it as free so it can be reused.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1845
  void destroy_method(Method** m) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1846
#ifdef ASSERT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1847
    assert(contains(m), "should be a methodID");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1848
#endif // ASSERT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1849
    *m = _free_method;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1850
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1851
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1852
  // During class unloading the methods are cleared, which is different
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1853
  // than freed.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1854
  void clear_all_methods() {
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1855
    for (JNIMethodBlockNode* b = &_head; b != NULL; b = b->_next) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1856
      for (int i = 0; i< b->_number_of_methods; i++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1857
        b->_methods[i] = NULL;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1858
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1859
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1860
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1861
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1862
  int count_methods() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1863
    // count all allocated methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1864
    int count = 0;
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1865
    for (JNIMethodBlockNode* b = &_head; b != NULL; b = b->_next) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1866
      for (int i = 0; i< b->_number_of_methods; i++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1867
        if (b->_methods[i] != _free_method) count++;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1868
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1869
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1870
    return count;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1871
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1872
#endif // PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1873
};
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1874
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1875
// Something that can't be mistaken for an address or a markOop
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1876
Method* const JNIMethodBlock::_free_method = (Method*)55;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1877
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1878
JNIMethodBlockNode::JNIMethodBlockNode(int num_methods) : _next(NULL), _top(0) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1879
  _number_of_methods = MAX2(num_methods, min_block_size);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1880
  _methods = NEW_C_HEAP_ARRAY(Method*, _number_of_methods, mtInternal);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1881
  for (int i = 0; i < _number_of_methods; i++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1882
    _methods[i] = JNIMethodBlock::_free_method;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1883
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1884
}
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1885
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1886
void Method::ensure_jmethod_ids(ClassLoaderData* loader_data, int capacity) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1887
  ClassLoaderData* cld = loader_data;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1888
  if (!SafepointSynchronize::is_at_safepoint()) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1889
    // Have to add jmethod_ids() to class loader data thread-safely.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1890
    // Also have to add the method to the list safely, which the cld lock
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1891
    // protects as well.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1892
    MutexLockerEx ml(cld->metaspace_lock(),  Mutex::_no_safepoint_check_flag);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1893
    if (cld->jmethod_ids() == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1894
      cld->set_jmethod_ids(new JNIMethodBlock(capacity));
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1895
    } else {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1896
      cld->jmethod_ids()->ensure_methods(capacity);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1897
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1898
  } else {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1899
    // At safepoint, we are single threaded and can set this.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1900
    if (cld->jmethod_ids() == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1901
      cld->set_jmethod_ids(new JNIMethodBlock(capacity));
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1902
    } else {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1903
      cld->jmethod_ids()->ensure_methods(capacity);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1904
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1905
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1906
}
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27461
diff changeset
  1907
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1908
// Add a method id to the jmethod_ids
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1909
jmethodID Method::make_jmethod_id(ClassLoaderData* loader_data, Method* m) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1910
  ClassLoaderData* cld = loader_data;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1911
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1912
  if (!SafepointSynchronize::is_at_safepoint()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1913
    // Have to add jmethod_ids() to class loader data thread-safely.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1914
    // Also have to add the method to the list safely, which the cld lock
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1915
    // protects as well.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1916
    MutexLockerEx ml(cld->metaspace_lock(),  Mutex::_no_safepoint_check_flag);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1917
    if (cld->jmethod_ids() == NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1918
      cld->set_jmethod_ids(new JNIMethodBlock());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1919
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1920
    // jmethodID is a pointer to Method*
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1921
    return (jmethodID)cld->jmethod_ids()->add_method(m);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1922
  } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1923
    // At safepoint, we are single threaded and can set this.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1924
    if (cld->jmethod_ids() == NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1925
      cld->set_jmethod_ids(new JNIMethodBlock());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1926
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1927
    // jmethodID is a pointer to Method*
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1928
    return (jmethodID)cld->jmethod_ids()->add_method(m);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1929
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1930
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1931
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1932
// Mark a jmethodID as free.  This is called when there is a data race in
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1933
// InstanceKlass while creating the jmethodID cache.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1934
void Method::destroy_jmethod_id(ClassLoaderData* loader_data, jmethodID m) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1935
  ClassLoaderData* cld = loader_data;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1936
  Method** ptr = (Method**)m;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1937
  assert(cld->jmethod_ids() != NULL, "should have method handles");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1938
  cld->jmethod_ids()->destroy_method(ptr);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1939
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1940
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1941
void Method::change_method_associated_with_jmethod_id(jmethodID jmid, Method* new_method) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1942
  // Can't assert the method_holder is the same because the new method has the
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1943
  // scratch method holder.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1944
  assert(resolve_jmethod_id(jmid)->method_holder()->class_loader()
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1945
           == new_method->method_holder()->class_loader(),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1946
         "changing to a different class loader");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1947
  // Just change the method in place, jmethodID pointer doesn't change.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1948
  *((Method**)jmid) = new_method;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1949
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1950
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1951
bool Method::is_method_id(jmethodID mid) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1952
  Method* m = resolve_jmethod_id(mid);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1953
  assert(m != NULL, "should be called with non-null method");
14391
df0a1573d5bd 8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents: 14386
diff changeset
  1954
  InstanceKlass* ik = m->method_holder();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1955
  ClassLoaderData* cld = ik->class_loader_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1956
  if (cld->jmethod_ids() == NULL) return false;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1957
  return (cld->jmethod_ids()->contains((Method**)mid));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1958
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1959
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1960
Method* Method::checked_resolve_jmethod_id(jmethodID mid) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1961
  if (mid == NULL) return NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1962
  Method* o = resolve_jmethod_id(mid);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1963
  if (o == NULL || o == JNIMethodBlock::_free_method || !((Metadata*)o)->is_method()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1964
    return NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1965
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1966
  return o;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1967
};
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1968
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1969
void Method::set_on_stack(const bool value) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1970
  // Set both the method itself and its constant pool.  The constant pool
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1971
  // on stack means some method referring to it is also on the stack.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1972
  constants()->set_on_stack(value);
27247
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 26799
diff changeset
  1973
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  1974
  bool already_set = on_stack();
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  1975
  _access_flags.set_on_stack(value);
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  1976
  if (value && !already_set) {
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  1977
    MetadataOnStackMark::record(this);
27247
99db666dbe8e 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents: 26799
diff changeset
  1978
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1979
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1980
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1981
// Called when the class loader is unloaded to make all methods weak.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1982
void Method::clear_jmethod_ids(ClassLoaderData* loader_data) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1983
  loader_data->jmethod_ids()->clear_all_methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1984
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  1985
24457
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1986
bool Method::has_method_vptr(const void* ptr) {
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1987
  Method m;
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1988
  // This assumes that the vtbl pointer is the first word of a C++ object.
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1989
  // This assumption is also in universe.cpp patch_klass_vtble
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1990
  void* vtbl2 = dereference_vptr((const void*)&m);
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1991
  void* this_vtbl = dereference_vptr(ptr);
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1992
  return vtbl2 == this_vtbl;
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  1993
}
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1994
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1995
// Check that this pointer is valid by checking that the vtbl pointer matches
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1996
bool Method::is_valid_method() const {
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1997
  if (this == NULL) {
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1998
    return false;
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  1999
  } else if (!is_metaspace_object()) {
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  2000
    return false;
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  2001
  } else {
24457
0e20b36df5c4 8038212: Method::is_valid_method() check has performance regression impact for stackwalking
coleenp
parents: 24456
diff changeset
  2002
    return has_method_vptr((const void*)this);
14579
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  2003
  }
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  2004
}
7f6ce6e3dd80 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 14488
diff changeset
  2005
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2006
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2007
void Method::print_jmethod_ids(ClassLoaderData* loader_data, outputStream* out) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2008
  out->print_cr("jni_method_id count = %d", loader_data->jmethod_ids()->count_methods());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2009
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2010
#endif // PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2011
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2012
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2013
// Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2014
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2015
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2016
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2017
void Method::print_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2018
  ResourceMark rm;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2019
  assert(is_method(), "must be method");
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24351
diff changeset
  2020
  st->print_cr("%s", internal_name());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2021
  // get the effect of PrintOopAddress, always, for methods:
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2022
  st->print_cr(" - this oop:          " INTPTR_FORMAT, p2i(this));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2023
  st->print   (" - method holder:     "); method_holder()->print_value_on(st); st->cr();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2024
  st->print   (" - constants:         " INTPTR_FORMAT " ", p2i(constants()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2025
  constants()->print_value_on(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2026
  st->print   (" - access:            0x%x  ", access_flags().as_int()); access_flags().print_on(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2027
  st->print   (" - name:              ");    name()->print_value_on(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2028
  st->print   (" - signature:         ");    signature()->print_value_on(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2029
  st->print_cr(" - max stack:         %d",   max_stack());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2030
  st->print_cr(" - max locals:        %d",   max_locals());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2031
  st->print_cr(" - size of params:    %d",   size_of_parameters());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2032
  st->print_cr(" - method size:       %d",   method_size());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2033
  if (intrinsic_id() != vmIntrinsics::_none)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2034
    st->print_cr(" - intrinsic id:      %d %s", intrinsic_id(), vmIntrinsics::name_at(intrinsic_id()));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2035
  if (highest_comp_level() != CompLevel_none)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2036
    st->print_cr(" - highest level:     %d", highest_comp_level());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2037
  st->print_cr(" - vtable index:      %d",   _vtable_index);
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2038
  st->print_cr(" - i2i entry:         " INTPTR_FORMAT, p2i(interpreter_entry()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2039
  st->print(   " - adapters:          ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2040
  AdapterHandlerEntry* a = ((Method*)this)->adapter();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2041
  if (a == NULL)
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2042
    st->print_cr(INTPTR_FORMAT, p2i(a));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2043
  else
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2044
    a->print_adapter_on(st);
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2045
  st->print_cr(" - compiled entry     " INTPTR_FORMAT, p2i(from_compiled_entry()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2046
  st->print_cr(" - code size:         %d",   code_size());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2047
  if (code_size() != 0) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2048
    st->print_cr(" - code start:        " INTPTR_FORMAT, p2i(code_base()));
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2049
    st->print_cr(" - code end (excl):   " INTPTR_FORMAT, p2i(code_base() + code_size()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2050
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2051
  if (method_data() != NULL) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2052
    st->print_cr(" - method data:       " INTPTR_FORMAT, p2i(method_data()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2053
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2054
  st->print_cr(" - checked ex length: %d",   checked_exceptions_length());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2055
  if (checked_exceptions_length() > 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2056
    CheckedExceptionElement* table = checked_exceptions_start();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2057
    st->print_cr(" - checked ex start:  " INTPTR_FORMAT, p2i(table));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2058
    if (Verbose) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2059
      for (int i = 0; i < checked_exceptions_length(); i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2060
        st->print_cr("   - throws %s", constants()->printable_name_at(table[i].class_cp_index));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2061
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2062
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2063
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2064
  if (has_linenumber_table()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2065
    u_char* table = compressed_linenumber_table();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2066
    st->print_cr(" - linenumber start:  " INTPTR_FORMAT, p2i(table));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2067
    if (Verbose) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2068
      CompressedLineNumberReadStream stream(table);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2069
      while (stream.read_pair()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2070
        st->print_cr("   - line %d: %d", stream.line(), stream.bci());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2071
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2072
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2073
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2074
  st->print_cr(" - localvar length:   %d",   localvariable_table_length());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2075
  if (localvariable_table_length() > 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2076
    LocalVariableTableElement* table = localvariable_table_start();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2077
    st->print_cr(" - localvar start:    " INTPTR_FORMAT, p2i(table));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2078
    if (Verbose) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2079
      for (int i = 0; i < localvariable_table_length(); i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2080
        int bci = table[i].start_bci;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2081
        int len = table[i].length;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2082
        const char* name = constants()->printable_name_at(table[i].name_cp_index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2083
        const char* desc = constants()->printable_name_at(table[i].descriptor_cp_index);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2084
        int slot = table[i].slot;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2085
        st->print_cr("   - %s %s bci=%d len=%d slot=%d", desc, name, bci, len, slot);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2086
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2087
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2088
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2089
  if (code() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2090
    st->print   (" - compiled code: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2091
    code()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2092
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2093
  if (is_native()) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2094
    st->print_cr(" - native function:   " INTPTR_FORMAT, p2i(native_function()));
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  2095
    st->print_cr(" - signature handler: " INTPTR_FORMAT, p2i(signature_handler()));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2096
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2097
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2098
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2099
#endif //PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2100
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2101
void Method::print_value_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2102
  assert(is_method(), "must be method");
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24351
diff changeset
  2103
  st->print("%s", internal_name());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2104
  print_address_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2105
  st->print(" ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2106
  name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2107
  st->print(" ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2108
  signature()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2109
  st->print(" in ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2110
  method_holder()->print_value_on(st);
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19720
diff changeset
  2111
  if (WizardMode) st->print("#%d", _vtable_index);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2112
  if (WizardMode) st->print("[%d,%d]", size_of_parameters(), max_locals());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2113
  if (WizardMode && code() != NULL) st->print(" ((nmethod*)%p)", code());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2114
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2115
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2116
#if INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2117
// Size Statistics
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2118
void Method::collect_statistics(KlassSizeStats *sz) const {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2119
  int mysize = sz->count(this);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2120
  sz->_method_bytes += mysize;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2121
  sz->_method_all_bytes += mysize;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2122
  sz->_rw_bytes += mysize;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2123
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2124
  if (constMethod()) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2125
    constMethod()->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2126
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2127
  if (method_data()) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2128
    method_data()->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2129
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2130
}
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15430
diff changeset
  2131
#endif // INCLUDE_SERVICES
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2132
31790
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2133
// LogTouchedMethods and PrintTouchedMethods
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2134
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2135
// TouchedMethodRecord -- we can't use a HashtableEntry<Method*> because
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2136
// the Method may be garbage collected. Let's roll our own hash table.
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2137
class TouchedMethodRecord : CHeapObj<mtTracing> {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2138
public:
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2139
  // It's OK to store Symbols here because they will NOT be GC'ed if
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2140
  // LogTouchedMethods is enabled.
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2141
  TouchedMethodRecord* _next;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2142
  Symbol* _class_name;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2143
  Symbol* _method_name;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2144
  Symbol* _method_signature;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2145
};
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2146
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2147
static const int TOUCHED_METHOD_TABLE_SIZE = 20011;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2148
static TouchedMethodRecord** _touched_method_table = NULL;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2149
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2150
void Method::log_touched(TRAPS) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2151
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2152
  const int table_size = TOUCHED_METHOD_TABLE_SIZE;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2153
  Symbol* my_class = klass_name();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2154
  Symbol* my_name  = name();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2155
  Symbol* my_sig   = signature();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2156
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2157
  unsigned int hash = my_class->identity_hash() +
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2158
                      my_name->identity_hash() +
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2159
                      my_sig->identity_hash();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2160
  juint index = juint(hash) % table_size;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2161
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2162
  MutexLocker ml(TouchedMethodLog_lock, THREAD);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2163
  if (_touched_method_table == NULL) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2164
    _touched_method_table = NEW_C_HEAP_ARRAY2(TouchedMethodRecord*, table_size,
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2165
                                              mtTracing, CURRENT_PC);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2166
    memset(_touched_method_table, 0, sizeof(TouchedMethodRecord*)*table_size);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2167
  }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2168
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2169
  TouchedMethodRecord* ptr = _touched_method_table[index];
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2170
  while (ptr) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2171
    if (ptr->_class_name       == my_class &&
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2172
        ptr->_method_name      == my_name &&
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2173
        ptr->_method_signature == my_sig) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2174
      return;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2175
    }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2176
    if (ptr->_next == NULL) break;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2177
    ptr = ptr->_next;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2178
  }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2179
  TouchedMethodRecord* nptr = NEW_C_HEAP_OBJ(TouchedMethodRecord, mtTracing);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2180
  my_class->set_permanent();  // prevent reclaimed by GC
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2181
  my_name->set_permanent();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2182
  my_sig->set_permanent();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2183
  nptr->_class_name         = my_class;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2184
  nptr->_method_name        = my_name;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2185
  nptr->_method_signature   = my_sig;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2186
  nptr->_next               = NULL;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2187
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2188
  if (ptr == NULL) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2189
    // first
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2190
    _touched_method_table[index] = nptr;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2191
  } else {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2192
    ptr->_next = nptr;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2193
  }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2194
}
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2195
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2196
void Method::print_touched_methods(outputStream* out) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2197
  MutexLockerEx ml(Thread::current()->is_VM_thread() ? NULL : TouchedMethodLog_lock);
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2198
  out->print_cr("# Method::print_touched_methods version 1");
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2199
  if (_touched_method_table) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2200
    for (int i = 0; i < TOUCHED_METHOD_TABLE_SIZE; i++) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2201
      TouchedMethodRecord* ptr = _touched_method_table[i];
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2202
      while(ptr) {
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2203
        ptr->_class_name->print_symbol_on(out);       out->print(".");
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2204
        ptr->_method_name->print_symbol_on(out);      out->print(":");
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2205
        ptr->_method_signature->print_symbol_on(out); out->cr();
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2206
        ptr = ptr->_next;
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2207
      }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2208
    }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2209
  }
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2210
}
4a08476437e8 8025692: Log what methods are touched at run-time
minqi
parents: 31593
diff changeset
  2211
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2212
// Verification
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2213
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2214
void Method::verify_on(outputStream* st) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2215
  guarantee(is_method(), "object must be method");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2216
  guarantee(constants()->is_constantPool(), "should be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2217
  guarantee(constMethod()->is_constMethod(), "should be ConstMethod*");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2218
  MethodData* md = method_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2219
  guarantee(md == NULL ||
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2220
      md->is_methodData(), "should be method data");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13392
diff changeset
  2221
}