author | iignatyev |
Mon, 10 Dec 2018 11:04:55 -0800 | |
changeset 52934 | 8deeb7bba516 |
parent 51467 | 12997ebbc0d8 |
child 53418 | bc2bb4eee477 |
permissions | -rw-r--r-- |
50113 | 1 |
/* |
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* Copyright (c) 2016, 2018, 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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||
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#include "precompiled.hpp" |
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#include "jni.h" |
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#include "classfile/javaClasses.inline.hpp" |
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#include "classfile/modules.hpp" |
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#include "classfile/symbolTable.hpp" |
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#include "classfile/systemDictionary.hpp" |
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#include "classfile/vmSymbols.hpp" |
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#include "jfr/jni/jfrJavaCall.hpp" |
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#include "jfr/jni/jfrJavaSupport.hpp" |
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#include "jfr/support/jfrThreadId.hpp" |
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#include "logging/log.hpp" |
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#include "memory/resourceArea.hpp" |
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#include "oops/instanceOop.hpp" |
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38 |
#include "oops/oop.inline.hpp" |
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#include "oops/objArrayKlass.hpp" |
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40 |
#include "oops/objArrayOop.inline.hpp" |
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#include "runtime/handles.inline.hpp" |
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51467
12997ebbc0d8
8209647: constantPoolHandle::constantPoolHandle(ConstantPool*) when precompiled header is disabled
iklam
parents:
50388
diff
changeset
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42 |
#include "runtime/fieldDescriptor.inline.hpp" |
50113 | 43 |
#include "runtime/java.hpp" |
44 |
#include "runtime/jniHandles.inline.hpp" |
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45 |
#include "runtime/synchronizer.hpp" |
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46 |
#include "runtime/thread.inline.hpp" |
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47 |
#include "runtime/threadSMR.hpp" |
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48 |
||
49 |
#ifdef ASSERT |
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50 |
void JfrJavaSupport::check_java_thread_in_vm(Thread* t) { |
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51 |
assert(t != NULL, "invariant"); |
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52 |
assert(t->is_Java_thread(), "invariant"); |
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53 |
assert(((JavaThread*)t)->thread_state() == _thread_in_vm, "invariant"); |
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54 |
} |
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55 |
||
56 |
void JfrJavaSupport::check_java_thread_in_native(Thread* t) { |
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assert(t != NULL, "invariant"); |
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assert(t->is_Java_thread(), "invariant"); |
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59 |
assert(((JavaThread*)t)->thread_state() == _thread_in_native, "invariant"); |
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} |
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#endif |
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62 |
||
63 |
/* |
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64 |
* Handles and references |
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*/ |
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66 |
jobject JfrJavaSupport::local_jni_handle(const oop obj, Thread* t) { |
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DEBUG_ONLY(check_java_thread_in_vm(t)); |
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return t->active_handles()->allocate_handle(obj); |
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69 |
} |
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70 |
||
71 |
jobject JfrJavaSupport::local_jni_handle(const jobject handle, Thread* t) { |
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DEBUG_ONLY(check_java_thread_in_vm(t)); |
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const oop obj = JNIHandles::resolve(handle); |
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return obj == NULL ? NULL : local_jni_handle(obj, t); |
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} |
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76 |
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77 |
void JfrJavaSupport::destroy_local_jni_handle(jobject handle) { |
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JNIHandles::destroy_local(handle); |
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} |
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80 |
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81 |
jobject JfrJavaSupport::global_jni_handle(const oop obj, Thread* t) { |
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DEBUG_ONLY(check_java_thread_in_vm(t)); |
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HandleMark hm(t); |
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return JNIHandles::make_global(Handle(t, obj)); |
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} |
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86 |
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87 |
jobject JfrJavaSupport::global_jni_handle(const jobject handle, Thread* t) { |
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const oop obj = JNIHandles::resolve(handle); |
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return obj == NULL ? NULL : global_jni_handle(obj, t); |
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} |
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91 |
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92 |
void JfrJavaSupport::destroy_global_jni_handle(jobject handle) { |
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93 |
JNIHandles::destroy_global(handle); |
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94 |
} |
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95 |
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96 |
oop JfrJavaSupport::resolve_non_null(jobject obj) { |
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97 |
return JNIHandles::resolve_non_null(obj); |
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98 |
} |
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99 |
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100 |
/* |
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101 |
* Method invocation |
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102 |
*/ |
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103 |
void JfrJavaSupport::call_static(JfrJavaArguments* args, TRAPS) { |
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104 |
JfrJavaCall::call_static(args, THREAD); |
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105 |
} |
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106 |
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107 |
void JfrJavaSupport::call_special(JfrJavaArguments* args, TRAPS) { |
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108 |
JfrJavaCall::call_special(args, THREAD); |
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109 |
} |
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110 |
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111 |
void JfrJavaSupport::call_virtual(JfrJavaArguments* args, TRAPS) { |
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JfrJavaCall::call_virtual(args, THREAD); |
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113 |
} |
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114 |
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115 |
void JfrJavaSupport::notify_all(jobject object, TRAPS) { |
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assert(object != NULL, "invariant"); |
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DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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HandleMark hm(THREAD); |
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Handle h_obj(THREAD, resolve_non_null(object)); |
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120 |
assert(h_obj.not_null(), "invariant"); |
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ObjectSynchronizer::jni_enter(h_obj, THREAD); |
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122 |
ObjectSynchronizer::notifyall(h_obj, THREAD); |
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123 |
ObjectSynchronizer::jni_exit(h_obj(), THREAD); |
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DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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125 |
} |
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126 |
||
127 |
/* |
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128 |
* Object construction |
|
129 |
*/ |
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130 |
static void object_construction(JfrJavaArguments* args, JavaValue* result, InstanceKlass* klass, TRAPS) { |
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131 |
assert(args != NULL, "invariant"); |
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132 |
assert(result != NULL, "invariant"); |
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133 |
assert(klass != NULL, "invariant"); |
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134 |
assert(klass->is_initialized(), "invariant"); |
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135 |
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136 |
HandleMark hm(THREAD); |
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137 |
instanceOop obj = klass->allocate_instance(CHECK); |
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138 |
instanceHandle h_obj(THREAD, obj); |
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139 |
assert(h_obj.not_null(), "invariant"); |
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args->set_receiver(h_obj); |
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result->set_type(T_VOID); // constructor result type |
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JfrJavaSupport::call_special(args, CHECK); |
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result->set_type(T_OBJECT); // set back to original result type |
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result->set_jobject((jobject)h_obj()); |
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} |
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146 |
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147 |
static void array_construction(JfrJavaArguments* args, JavaValue* result, InstanceKlass* klass, int array_length, TRAPS) { |
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assert(args != NULL, "invariant"); |
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assert(result != NULL, "invariant"); |
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150 |
assert(klass != NULL, "invariant"); |
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assert(klass->is_initialized(), "invariant"); |
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152 |
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153 |
Klass* const ak = klass->array_klass(THREAD); |
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ObjArrayKlass::cast(ak)->initialize(THREAD); |
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HandleMark hm(THREAD); |
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objArrayOop arr = ObjArrayKlass::cast(ak)->allocate(array_length, CHECK); |
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result->set_jobject((jobject)arr); |
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158 |
} |
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159 |
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160 |
static void create_object(JfrJavaArguments* args, JavaValue* result, TRAPS) { |
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assert(args != NULL, "invariant"); |
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assert(result != NULL, "invariant"); |
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163 |
assert(result->get_type() == T_OBJECT, "invariant"); |
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DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD)); |
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165 |
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166 |
InstanceKlass* const klass = static_cast<InstanceKlass*>(args->klass()); |
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klass->initialize(CHECK); |
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168 |
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169 |
const int array_length = args->array_length(); |
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170 |
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171 |
if (array_length > 0) { |
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array_construction(args, result, klass, array_length, CHECK); |
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173 |
} else { |
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object_construction(args, result, klass, THREAD); |
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} |
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176 |
} |
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177 |
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178 |
static void handle_result(JavaValue* result, bool global_ref, Thread* t) { |
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assert(result != NULL, "invariant"); |
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DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(t)); |
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181 |
const oop result_oop = (const oop)result->get_jobject(); |
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182 |
if (result_oop == NULL) { |
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183 |
return; |
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184 |
} |
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185 |
result->set_jobject(global_ref ? |
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186 |
JfrJavaSupport::global_jni_handle(result_oop, t) : |
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187 |
JfrJavaSupport::local_jni_handle(result_oop, t)); |
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188 |
} |
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189 |
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190 |
void JfrJavaSupport::new_object(JfrJavaArguments* args, TRAPS) { |
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191 |
assert(args != NULL, "invariant"); |
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192 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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193 |
create_object(args, args->result(), THREAD); |
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194 |
} |
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195 |
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196 |
void JfrJavaSupport::new_object_local_ref(JfrJavaArguments* args, TRAPS) { |
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197 |
assert(args != NULL, "invariant"); |
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198 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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199 |
JavaValue* const result = args->result(); |
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200 |
assert(result != NULL, "invariant"); |
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201 |
create_object(args, result, CHECK); |
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202 |
handle_result(result, false, THREAD); |
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203 |
} |
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204 |
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205 |
void JfrJavaSupport::new_object_global_ref(JfrJavaArguments* args, TRAPS) { |
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206 |
assert(args != NULL, "invariant"); |
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207 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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208 |
JavaValue* const result = args->result(); |
|
209 |
assert(result != NULL, "invariant"); |
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210 |
create_object(args, result, CHECK); |
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211 |
handle_result(result, true, THREAD); |
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212 |
} |
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213 |
||
214 |
jstring JfrJavaSupport::new_string(const char* c_str, TRAPS) { |
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215 |
assert(c_str != NULL, "invariant"); |
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216 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
|
217 |
const oop result = java_lang_String::create_oop_from_str(c_str, THREAD); |
|
218 |
return (jstring)local_jni_handle(result, THREAD); |
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219 |
} |
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220 |
||
221 |
jobjectArray JfrJavaSupport::new_string_array(int length, TRAPS) { |
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222 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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223 |
JavaValue result(T_OBJECT); |
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224 |
JfrJavaArguments args(&result, "java/lang/String", "<init>", "()V", CHECK_NULL); |
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225 |
args.set_array_length(length); |
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226 |
new_object_local_ref(&args, THREAD); |
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227 |
return (jobjectArray)args.result()->get_jobject(); |
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228 |
} |
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229 |
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230 |
jobject JfrJavaSupport::new_java_lang_Boolean(bool value, TRAPS) { |
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231 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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232 |
JavaValue result(T_OBJECT); |
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233 |
JfrJavaArguments args(&result, "java/lang/Boolean", "<init>", "(Z)V", CHECK_NULL); |
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234 |
args.push_int(value ? (jint)JNI_TRUE : (jint)JNI_FALSE); |
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235 |
new_object_local_ref(&args, THREAD); |
|
236 |
return args.result()->get_jobject(); |
|
237 |
} |
|
238 |
||
239 |
jobject JfrJavaSupport::new_java_lang_Integer(jint value, TRAPS) { |
|
240 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
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241 |
JavaValue result(T_OBJECT); |
|
242 |
JfrJavaArguments args(&result, "java/lang/Integer", "<init>", "(I)V", CHECK_NULL); |
|
243 |
args.push_int(value); |
|
244 |
new_object_local_ref(&args, THREAD); |
|
245 |
return args.result()->get_jobject(); |
|
246 |
} |
|
247 |
||
248 |
jobject JfrJavaSupport::new_java_lang_Long(jlong value, TRAPS) { |
|
249 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
|
250 |
JavaValue result(T_OBJECT); |
|
251 |
JfrJavaArguments args(&result, "java/lang/Long", "<init>", "(J)V", CHECK_NULL); |
|
252 |
args.push_long(value); |
|
253 |
new_object_local_ref(&args, THREAD); |
|
254 |
return args.result()->get_jobject(); |
|
255 |
} |
|
256 |
||
257 |
void JfrJavaSupport::set_array_element(jobjectArray arr, jobject element, int index, Thread* t) { |
|
258 |
assert(arr != NULL, "invariant"); |
|
259 |
DEBUG_ONLY(check_java_thread_in_vm(t)); |
|
260 |
HandleMark hm(t); |
|
261 |
objArrayHandle a(t, (objArrayOop)resolve_non_null(arr)); |
|
262 |
a->obj_at_put(index, resolve_non_null(element)); |
|
263 |
} |
|
264 |
||
265 |
/* |
|
266 |
* Field access |
|
267 |
*/ |
|
268 |
static void write_int_field(const Handle& h_oop, fieldDescriptor* fd, jint value) { |
|
269 |
assert(h_oop.not_null(), "invariant"); |
|
270 |
assert(fd != NULL, "invariant"); |
|
271 |
h_oop->int_field_put(fd->offset(), value); |
|
272 |
} |
|
273 |
||
274 |
static void write_float_field(const Handle& h_oop, fieldDescriptor* fd, jfloat value) { |
|
275 |
assert(h_oop.not_null(), "invariant"); |
|
276 |
assert(fd != NULL, "invariant"); |
|
277 |
h_oop->float_field_put(fd->offset(), value); |
|
278 |
} |
|
279 |
||
280 |
static void write_double_field(const Handle& h_oop, fieldDescriptor* fd, jdouble value) { |
|
281 |
assert(h_oop.not_null(), "invariant"); |
|
282 |
assert(fd != NULL, "invariant"); |
|
283 |
h_oop->double_field_put(fd->offset(), value); |
|
284 |
} |
|
285 |
||
286 |
static void write_long_field(const Handle& h_oop, fieldDescriptor* fd, jlong value) { |
|
287 |
assert(h_oop.not_null(), "invariant"); |
|
288 |
assert(fd != NULL, "invariant"); |
|
289 |
h_oop->long_field_put(fd->offset(), value); |
|
290 |
} |
|
291 |
||
292 |
static void write_oop_field(const Handle& h_oop, fieldDescriptor* fd, const oop value) { |
|
293 |
assert(h_oop.not_null(), "invariant"); |
|
294 |
assert(fd != NULL, "invariant"); |
|
295 |
h_oop->obj_field_put(fd->offset(), value); |
|
296 |
} |
|
297 |
||
298 |
static void write_specialized_field(JfrJavaArguments* args, const Handle& h_oop, fieldDescriptor* fd, bool static_field) { |
|
299 |
assert(args != NULL, "invariant"); |
|
300 |
assert(h_oop.not_null(), "invariant"); |
|
301 |
assert(fd != NULL, "invariant"); |
|
302 |
assert(fd->offset() > 0, "invariant"); |
|
303 |
assert(args->length() >= 1, "invariant"); |
|
304 |
||
305 |
// attempt must set a real value |
|
306 |
assert(args->param(1).get_type() != T_VOID, "invariant"); |
|
307 |
||
308 |
switch(fd->field_type()) { |
|
309 |
case T_BOOLEAN: |
|
310 |
case T_CHAR: |
|
311 |
case T_SHORT: |
|
312 |
case T_INT: |
|
313 |
write_int_field(h_oop, fd, args->param(1).get_jint()); |
|
314 |
break; |
|
315 |
case T_FLOAT: |
|
316 |
write_float_field(h_oop, fd, args->param(1).get_jfloat()); |
|
317 |
break; |
|
318 |
case T_DOUBLE: |
|
319 |
write_double_field(h_oop, fd, args->param(1).get_jdouble()); |
|
320 |
break; |
|
321 |
case T_LONG: |
|
322 |
write_long_field(h_oop, fd, args->param(1).get_jlong()); |
|
323 |
break; |
|
324 |
case T_OBJECT: |
|
325 |
write_oop_field(h_oop, fd, (oop)args->param(1).get_jobject()); |
|
326 |
break; |
|
327 |
case T_ADDRESS: |
|
328 |
write_oop_field(h_oop, fd, JfrJavaSupport::resolve_non_null(args->param(1).get_jobject())); |
|
329 |
break; |
|
330 |
default: |
|
331 |
ShouldNotReachHere(); |
|
332 |
} |
|
333 |
} |
|
334 |
||
335 |
static void read_specialized_field(JavaValue* result, const Handle& h_oop, fieldDescriptor* fd) { |
|
336 |
assert(result != NULL, "invariant"); |
|
337 |
assert(h_oop.not_null(), "invariant"); |
|
338 |
assert(fd != NULL, "invariant"); |
|
339 |
assert(fd->offset() > 0, "invariant"); |
|
340 |
||
341 |
switch(fd->field_type()) { |
|
342 |
case T_BOOLEAN: |
|
343 |
case T_CHAR: |
|
344 |
case T_SHORT: |
|
345 |
case T_INT: |
|
346 |
result->set_jint(h_oop->int_field(fd->offset())); |
|
347 |
break; |
|
348 |
case T_FLOAT: |
|
349 |
result->set_jfloat(h_oop->float_field(fd->offset())); |
|
350 |
break; |
|
351 |
case T_DOUBLE: |
|
352 |
result->set_jdouble(h_oop->double_field(fd->offset())); |
|
353 |
break; |
|
354 |
case T_LONG: |
|
355 |
result->set_jlong(h_oop->long_field(fd->offset())); |
|
356 |
break; |
|
357 |
case T_OBJECT: |
|
358 |
result->set_jobject((jobject)h_oop->obj_field(fd->offset())); |
|
359 |
break; |
|
360 |
default: |
|
361 |
ShouldNotReachHere(); |
|
362 |
} |
|
363 |
} |
|
364 |
||
365 |
static bool find_field(InstanceKlass* ik, |
|
366 |
Symbol* name_symbol, |
|
367 |
Symbol* signature_symbol, |
|
368 |
fieldDescriptor* fd, |
|
369 |
bool is_static = false, |
|
370 |
bool allow_super = false) { |
|
371 |
if (allow_super || is_static) { |
|
372 |
return ik->find_field(name_symbol, signature_symbol, is_static, fd) != NULL; |
|
373 |
} |
|
374 |
return ik->find_local_field(name_symbol, signature_symbol, fd); |
|
375 |
} |
|
376 |
||
377 |
static void lookup_field(JfrJavaArguments* args, InstanceKlass* klass, fieldDescriptor* fd, bool static_field) { |
|
378 |
assert(args != NULL, "invariant"); |
|
379 |
assert(klass != NULL, "invariant"); |
|
380 |
assert(klass->is_initialized(), "invariant"); |
|
381 |
assert(fd != NULL, "invariant"); |
|
382 |
find_field(klass, args->name(), args->signature(), fd, static_field, true); |
|
383 |
} |
|
384 |
||
385 |
static void read_field(JfrJavaArguments* args, JavaValue* result, TRAPS) { |
|
386 |
assert(args != NULL, "invariant"); |
|
387 |
assert(result != NULL, "invariant"); |
|
388 |
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD)); |
|
389 |
||
390 |
InstanceKlass* const klass = static_cast<InstanceKlass*>(args->klass()); |
|
391 |
klass->initialize(CHECK); |
|
392 |
const bool static_field = !args->has_receiver(); |
|
393 |
fieldDescriptor fd; |
|
394 |
lookup_field(args, klass, &fd, static_field); |
|
395 |
assert(fd.offset() > 0, "invariant"); |
|
396 |
||
397 |
HandleMark hm(THREAD); |
|
398 |
Handle h_oop(static_field ? Handle(THREAD, klass->java_mirror()) : Handle(THREAD, args->receiver())); |
|
399 |
read_specialized_field(result, h_oop, &fd); |
|
400 |
} |
|
401 |
||
402 |
static void write_field(JfrJavaArguments* args, JavaValue* result, TRAPS) { |
|
403 |
assert(args != NULL, "invariant"); |
|
404 |
assert(result != NULL, "invariant"); |
|
405 |
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD)); |
|
406 |
||
407 |
InstanceKlass* const klass = static_cast<InstanceKlass*>(args->klass()); |
|
408 |
klass->initialize(CHECK); |
|
409 |
||
410 |
const bool static_field = !args->has_receiver(); |
|
411 |
fieldDescriptor fd; |
|
412 |
lookup_field(args, klass, &fd, static_field); |
|
413 |
assert(fd.offset() > 0, "invariant"); |
|
414 |
||
415 |
HandleMark hm(THREAD); |
|
416 |
Handle h_oop(static_field ? Handle(THREAD, klass->java_mirror()) : Handle(THREAD, args->receiver())); |
|
417 |
write_specialized_field(args, h_oop, &fd, static_field); |
|
418 |
} |
|
419 |
||
420 |
void JfrJavaSupport::set_field(JfrJavaArguments* args, TRAPS) { |
|
421 |
assert(args != NULL, "invariant"); |
|
422 |
write_field(args, args->result(), THREAD); |
|
423 |
} |
|
424 |
||
425 |
void JfrJavaSupport::get_field(JfrJavaArguments* args, TRAPS) { |
|
426 |
assert(args != NULL, "invariant"); |
|
427 |
read_field(args, args->result(), THREAD); |
|
428 |
} |
|
429 |
||
430 |
void JfrJavaSupport::get_field_local_ref(JfrJavaArguments* args, TRAPS) { |
|
431 |
assert(args != NULL, "invariant"); |
|
432 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
|
433 |
||
434 |
JavaValue* const result = args->result(); |
|
435 |
assert(result != NULL, "invariant"); |
|
436 |
assert(result->get_type() == T_OBJECT, "invariant"); |
|
437 |
||
438 |
read_field(args, result, CHECK); |
|
439 |
const oop obj = (const oop)result->get_jobject(); |
|
440 |
||
441 |
if (obj != NULL) { |
|
442 |
result->set_jobject(local_jni_handle(obj, THREAD)); |
|
443 |
} |
|
444 |
} |
|
445 |
||
446 |
void JfrJavaSupport::get_field_global_ref(JfrJavaArguments* args, TRAPS) { |
|
447 |
assert(args != NULL, "invariant"); |
|
448 |
DEBUG_ONLY(check_java_thread_in_vm(THREAD)); |
|
449 |
||
450 |
JavaValue* const result = args->result(); |
|
451 |
assert(result != NULL, "invariant"); |
|
452 |
assert(result->get_type() == T_OBJECT, "invariant"); |
|
453 |
read_field(args, result, CHECK); |
|
454 |
const oop obj = (const oop)result->get_jobject(); |
|
455 |
if (obj != NULL) { |
|
456 |
result->set_jobject(global_jni_handle(obj, THREAD)); |
|
457 |
} |
|
458 |
} |
|
459 |
||
460 |
/* |
|
461 |
* Misc |
|
462 |
*/ |
|
463 |
Klass* JfrJavaSupport::klass(const jobject handle) { |
|
464 |
const oop obj = resolve_non_null(handle); |
|
465 |
assert(obj != NULL, "invariant"); |
|
466 |
return obj->klass(); |
|
467 |
} |
|
468 |
||
469 |
// caller needs ResourceMark |
|
470 |
const char* JfrJavaSupport::c_str(jstring string, Thread* t) { |
|
471 |
DEBUG_ONLY(check_java_thread_in_vm(t)); |
|
472 |
if (string == NULL) { |
|
473 |
return NULL; |
|
474 |
} |
|
475 |
const char* temp = NULL; |
|
476 |
const oop java_string = resolve_non_null(string); |
|
477 |
if (java_lang_String::value(java_string) != NULL) { |
|
478 |
const size_t length = java_lang_String::utf8_length(java_string); |
|
479 |
temp = NEW_RESOURCE_ARRAY_IN_THREAD(t, const char, (length + 1)); |
|
480 |
if (temp == NULL) { |
|
481 |
JfrJavaSupport::throw_out_of_memory_error("Unable to allocate thread local native memory", t); |
|
482 |
return NULL; |
|
483 |
} |
|
484 |
assert(temp != NULL, "invariant"); |
|
485 |
java_lang_String::as_utf8_string(java_string, const_cast<char*>(temp), (int) length + 1); |
|
486 |
} |
|
487 |
return temp; |
|
488 |
} |
|
489 |
||
490 |
/* |
|
491 |
* Exceptions and errors |
|
492 |
*/ |
|
493 |
static void create_and_throw(Symbol* name, const char* message, TRAPS) { |
|
494 |
assert(name != NULL, "invariant"); |
|
495 |
DEBUG_ONLY(JfrJavaSupport::check_java_thread_in_vm(THREAD)); |
|
496 |
assert(!HAS_PENDING_EXCEPTION, "invariant"); |
|
497 |
THROW_MSG(name, message); |
|
498 |
} |
|
499 |
||
500 |
void JfrJavaSupport::throw_illegal_state_exception(const char* message, TRAPS) { |
|
501 |
create_and_throw(vmSymbols::java_lang_IllegalStateException(), message, THREAD); |
|
502 |
} |
|
503 |
||
504 |
void JfrJavaSupport::throw_internal_error(const char* message, TRAPS) { |
|
505 |
create_and_throw(vmSymbols::java_lang_InternalError(), message, THREAD); |
|
506 |
} |
|
507 |
||
508 |
void JfrJavaSupport::throw_illegal_argument_exception(const char* message, TRAPS) { |
|
509 |
create_and_throw(vmSymbols::java_lang_IllegalArgumentException(), message, THREAD); |
|
510 |
} |
|
511 |
||
512 |
void JfrJavaSupport::throw_out_of_memory_error(const char* message, TRAPS) { |
|
513 |
create_and_throw(vmSymbols::java_lang_OutOfMemoryError(), message, THREAD); |
|
514 |
} |
|
515 |
||
516 |
void JfrJavaSupport::throw_class_format_error(const char* message, TRAPS) { |
|
517 |
create_and_throw(vmSymbols::java_lang_ClassFormatError(), message, THREAD); |
|
518 |
} |
|
519 |
||
520 |
void JfrJavaSupport::abort(jstring errorMsg, Thread* t) { |
|
521 |
DEBUG_ONLY(check_java_thread_in_vm(t)); |
|
522 |
||
523 |
ResourceMark rm(t); |
|
524 |
const char* const error_msg = c_str(errorMsg, t); |
|
525 |
if (error_msg != NULL) { |
|
526 |
log_error(jfr, system)("%s",error_msg); |
|
527 |
} |
|
528 |
log_error(jfr, system)("%s", "An irrecoverable error in Jfr. Shutting down VM..."); |
|
529 |
vm_abort(); |
|
530 |
} |
|
531 |
||
532 |
JfrJavaSupport::CAUSE JfrJavaSupport::_cause = JfrJavaSupport::VM_ERROR; |
|
533 |
void JfrJavaSupport::set_cause(jthrowable throwable, Thread* t) { |
|
534 |
DEBUG_ONLY(check_java_thread_in_vm(t)); |
|
535 |
||
536 |
HandleMark hm(t); |
|
537 |
Handle ex(t, JNIHandles::resolve_external_guard(throwable)); |
|
538 |
||
539 |
if (ex.is_null()) { |
|
540 |
return; |
|
541 |
} |
|
542 |
||
543 |
if (ex->is_a(SystemDictionary::OutOfMemoryError_klass())) { |
|
544 |
_cause = OUT_OF_MEMORY; |
|
545 |
return; |
|
546 |
} |
|
547 |
if (ex->is_a(SystemDictionary::StackOverflowError_klass())) { |
|
548 |
_cause = STACK_OVERFLOW; |
|
549 |
return; |
|
550 |
} |
|
551 |
if (ex->is_a(SystemDictionary::Error_klass())) { |
|
552 |
_cause = VM_ERROR; |
|
553 |
return; |
|
554 |
} |
|
555 |
if (ex->is_a(SystemDictionary::RuntimeException_klass())) { |
|
556 |
_cause = RUNTIME_EXCEPTION; |
|
557 |
return; |
|
558 |
} |
|
559 |
if (ex->is_a(SystemDictionary::Exception_klass())) { |
|
560 |
_cause = UNKNOWN; |
|
561 |
return; |
|
562 |
} |
|
563 |
} |
|
564 |
||
565 |
void JfrJavaSupport::uncaught_exception(jthrowable throwable, Thread* t) { |
|
566 |
DEBUG_ONLY(check_java_thread_in_vm(t)); |
|
567 |
assert(throwable != NULL, "invariant"); |
|
568 |
set_cause(throwable, t); |
|
569 |
} |
|
570 |
||
571 |
JfrJavaSupport::CAUSE JfrJavaSupport::cause() { |
|
572 |
return _cause; |
|
573 |
} |
|
574 |
||
575 |
const char* const JDK_JFR_MODULE_NAME = "jdk.jfr"; |
|
576 |
const char* const JDK_JFR_PACKAGE_NAME = "jdk/jfr"; |
|
577 |
||
578 |
static bool is_jdk_jfr_module_in_readability_graph() { |
|
579 |
Thread* const t = Thread::current(); |
|
580 |
// take one of the packages in the module to be located and query for its definition. |
|
581 |
TempNewSymbol pkg_sym = SymbolTable::new_symbol(JDK_JFR_PACKAGE_NAME, t); |
|
582 |
return Modules::is_package_defined(pkg_sym, Handle(), t); |
|
583 |
} |
|
584 |
||
585 |
static void print_module_resolution_error(outputStream* stream) { |
|
586 |
assert(stream != NULL, "invariant"); |
|
50388
55fac6146d31
8203919: Remove "-add-modules" hint from error message
egahlin
parents:
50113
diff
changeset
|
587 |
stream->print_cr("Module %s not found.", JDK_JFR_MODULE_NAME); |
50113 | 588 |
stream->print_cr("Flight Recorder can not be enabled."); |
589 |
} |
|
590 |
||
591 |
bool JfrJavaSupport::is_jdk_jfr_module_available() { |
|
592 |
return is_jdk_jfr_module_in_readability_graph(); |
|
593 |
} |
|
594 |
||
595 |
bool JfrJavaSupport::is_jdk_jfr_module_available(outputStream* stream, TRAPS) { |
|
596 |
if (!JfrJavaSupport::is_jdk_jfr_module_available()) { |
|
597 |
if (stream != NULL) { |
|
598 |
print_module_resolution_error(stream); |
|
599 |
} |
|
600 |
return false; |
|
601 |
} |
|
602 |
return true; |
|
603 |
} |
|
604 |
||
605 |
jlong JfrJavaSupport::jfr_thread_id(jobject target_thread) { |
|
606 |
ThreadsListHandle tlh; |
|
607 |
JavaThread* native_thread = NULL; |
|
608 |
(void)tlh.cv_internal_thread_to_JavaThread(target_thread, &native_thread, NULL); |
|
609 |
return native_thread != NULL ? JFR_THREAD_ID(native_thread) : 0; |
|
610 |
} |