mirror of
https://github.com/openjdk/jdk.git
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ffa35d8cf1
Co-authored-by: Gui Cao <gcao@openjdk.org> Co-authored-by: Fei Yang <fyang@openjdk.org> Co-authored-by: Martin Doerr <mdoerr@openjdk.org> Co-authored-by: Amit Kumar <amitkumar@openjdk.org> Reviewed-by: coleenp, adinn, fparain
1747 lines
63 KiB
C++
1747 lines
63 KiB
C++
/*
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* Copyright (c) 1999, 2023, 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 "ci/ciConstant.hpp"
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#include "ci/ciEnv.hpp"
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#include "ci/ciField.hpp"
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#include "ci/ciInstance.hpp"
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#include "ci/ciInstanceKlass.hpp"
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#include "ci/ciMethod.hpp"
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#include "ci/ciNullObject.hpp"
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#include "ci/ciReplay.hpp"
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#include "ci/ciSymbols.hpp"
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#include "ci/ciUtilities.inline.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/javaClasses.inline.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/vmClasses.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/codeCache.hpp"
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#include "code/scopeDesc.hpp"
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#include "compiler/compilationLog.hpp"
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#include "compiler/compilationPolicy.hpp"
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#include "compiler/compileBroker.hpp"
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#include "compiler/compilerEvent.hpp"
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#include "compiler/compileLog.hpp"
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#include "compiler/compileTask.hpp"
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#include "compiler/disassembler.hpp"
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#include "gc/shared/collectedHeap.inline.hpp"
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#include "interpreter/bytecodeStream.hpp"
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#include "interpreter/linkResolver.hpp"
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#include "jfr/jfrEvents.hpp"
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#include "jvm.h"
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#include "logging/log.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/resourceArea.hpp"
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#include "memory/universe.hpp"
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#include "oops/constantPool.inline.hpp"
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#include "oops/cpCache.inline.hpp"
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#include "oops/method.inline.hpp"
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#include "oops/methodData.hpp"
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#include "oops/objArrayKlass.hpp"
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#include "oops/objArrayOop.inline.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/resolvedIndyEntry.hpp"
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#include "oops/symbolHandle.hpp"
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#include "prims/jvmtiExport.hpp"
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#include "prims/methodHandles.hpp"
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#include "runtime/fieldDescriptor.inline.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/init.hpp"
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#include "runtime/javaThread.hpp"
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#include "runtime/jniHandles.inline.hpp"
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#include "runtime/reflection.hpp"
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#include "runtime/safepointVerifiers.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "utilities/dtrace.hpp"
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#include "utilities/macros.hpp"
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#ifdef COMPILER1
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#include "c1/c1_Runtime1.hpp"
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#endif
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#ifdef COMPILER2
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#include "opto/runtime.hpp"
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#endif
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// ciEnv
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//
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// This class is the top level broker for requests from the compiler
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// to the VM.
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ciObject* ciEnv::_null_object_instance;
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#define VM_CLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = nullptr;
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VM_CLASSES_DO(VM_CLASS_DEFN)
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#undef VM_CLASS_DEFN
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ciSymbol* ciEnv::_unloaded_cisymbol = nullptr;
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ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = nullptr;
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ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = nullptr;
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jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = nullptr;
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jobject ciEnv::_ArrayStoreException_handle = nullptr;
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jobject ciEnv::_ClassCastException_handle = nullptr;
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#ifndef PRODUCT
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static bool firstEnv = true;
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#endif /* PRODUCT */
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// ------------------------------------------------------------------
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// ciEnv::ciEnv
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ciEnv::ciEnv(CompileTask* task)
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: _ciEnv_arena(mtCompiler) {
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VM_ENTRY_MARK;
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// Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
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thread->set_env(this);
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assert(ciEnv::current() == this, "sanity");
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_oop_recorder = nullptr;
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_debug_info = nullptr;
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_dependencies = nullptr;
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_failure_reason = nullptr;
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_inc_decompile_count_on_failure = true;
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_compilable = MethodCompilable;
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_break_at_compile = false;
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_compiler_data = nullptr;
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#ifndef PRODUCT
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assert(!firstEnv, "not initialized properly");
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#endif /* !PRODUCT */
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_num_inlined_bytecodes = 0;
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assert(task == nullptr || thread->task() == task, "sanity");
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if (task != nullptr) {
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task->mark_started(os::elapsed_counter());
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}
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_task = task;
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_log = nullptr;
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// Temporary buffer for creating symbols and such.
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_name_buffer = nullptr;
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_name_buffer_len = 0;
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_arena = &_ciEnv_arena;
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_factory = new (_arena) ciObjectFactory(_arena, 128);
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// Preload commonly referenced system ciObjects.
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// During VM initialization, these instances have not yet been created.
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// Assertions ensure that these instances are not accessed before
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// their initialization.
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assert(Universe::is_fully_initialized(), "should be complete");
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oop o = Universe::null_ptr_exception_instance();
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assert(o != nullptr, "should have been initialized");
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_NullPointerException_instance = get_object(o)->as_instance();
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o = Universe::arithmetic_exception_instance();
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assert(o != nullptr, "should have been initialized");
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_ArithmeticException_instance = get_object(o)->as_instance();
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_ArrayIndexOutOfBoundsException_instance = nullptr;
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_ArrayStoreException_instance = nullptr;
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_ClassCastException_instance = nullptr;
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_the_null_string = nullptr;
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_the_min_jint_string = nullptr;
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_jvmti_redefinition_count = 0;
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_jvmti_can_hotswap_or_post_breakpoint = false;
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_jvmti_can_access_local_variables = false;
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_jvmti_can_post_on_exceptions = false;
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_jvmti_can_pop_frame = false;
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_dyno_klasses = nullptr;
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_dyno_locs = nullptr;
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_dyno_name[0] = '\0';
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}
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// Record components of a location descriptor string. Components are appended by the constructor and
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// removed by the destructor, like a stack, so scope matters. These location descriptors are used to
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// locate dynamic classes, and terminate at a Method* or oop field associated with dynamic/hidden class.
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//
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// Example use:
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//
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// {
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// RecordLocation fp(this, "field1");
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// // location: "field1"
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// { RecordLocation fp(this, " field2"); // location: "field1 field2" }
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// // location: "field1"
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// { RecordLocation fp(this, " field3"); // location: "field1 field3" }
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// // location: "field1"
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// }
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// // location: ""
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//
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// Examples of actual locations
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// @bci compiler/ciReplay/CiReplayBase$TestMain test (I)V 1 <appendix> argL0 ;
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// // resolve invokedynamic at bci 1 of TestMain.test, then read field "argL0" from appendix
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// @bci compiler/ciReplay/CiReplayBase$TestMain main ([Ljava/lang/String;)V 0 <appendix> form vmentry <vmtarget> ;
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// // resolve invokedynamic at bci 0 of TestMain.main, then read field "form.vmentry.method.vmtarget" from appendix
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// @cpi compiler/ciReplay/CiReplayBase$TestMain 56 form vmentry <vmtarget> ;
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// // resolve MethodHandle at cpi 56 of TestMain, then read field "vmentry.method.vmtarget" from resolved MethodHandle
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class RecordLocation {
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private:
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char* end;
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ATTRIBUTE_PRINTF(3, 4)
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void push(ciEnv* ci, const char* fmt, ...) {
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va_list args;
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va_start(args, fmt);
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push_va(ci, fmt, args);
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va_end(args);
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}
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public:
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ATTRIBUTE_PRINTF(3, 0)
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void push_va(ciEnv* ci, const char* fmt, va_list args) {
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char *e = ci->_dyno_name + strlen(ci->_dyno_name);
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char *m = ci->_dyno_name + ARRAY_SIZE(ci->_dyno_name) - 1;
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os::vsnprintf(e, m - e, fmt, args);
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assert(strlen(ci->_dyno_name) < (ARRAY_SIZE(ci->_dyno_name) - 1), "overflow");
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}
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// append a new component
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ATTRIBUTE_PRINTF(3, 4)
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RecordLocation(ciEnv* ci, const char* fmt, ...) {
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end = ci->_dyno_name + strlen(ci->_dyno_name);
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va_list args;
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va_start(args, fmt);
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push(ci, " ");
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push_va(ci, fmt, args);
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va_end(args);
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}
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// reset to previous state
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~RecordLocation() {
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*end = '\0';
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}
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};
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ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) {
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ASSERT_IN_VM;
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// Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc.
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CompilerThread* current_thread = CompilerThread::current();
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assert(current_thread->env() == nullptr, "must be");
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current_thread->set_env(this);
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assert(ciEnv::current() == this, "sanity");
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_oop_recorder = nullptr;
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_debug_info = nullptr;
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_dependencies = nullptr;
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_failure_reason = nullptr;
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_inc_decompile_count_on_failure = true;
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_compilable = MethodCompilable_never;
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_break_at_compile = false;
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_compiler_data = nullptr;
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#ifndef PRODUCT
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assert(firstEnv, "must be first");
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firstEnv = false;
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#endif /* !PRODUCT */
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_num_inlined_bytecodes = 0;
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_task = nullptr;
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_log = nullptr;
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// Temporary buffer for creating symbols and such.
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_name_buffer = nullptr;
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_name_buffer_len = 0;
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_arena = arena;
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_factory = new (_arena) ciObjectFactory(_arena, 128);
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// Preload commonly referenced system ciObjects.
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// During VM initialization, these instances have not yet been created.
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// Assertions ensure that these instances are not accessed before
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// their initialization.
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assert(Universe::is_fully_initialized(), "must be");
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_NullPointerException_instance = nullptr;
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_ArithmeticException_instance = nullptr;
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_ArrayIndexOutOfBoundsException_instance = nullptr;
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_ArrayStoreException_instance = nullptr;
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_ClassCastException_instance = nullptr;
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_the_null_string = nullptr;
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_the_min_jint_string = nullptr;
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_jvmti_redefinition_count = 0;
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_jvmti_can_hotswap_or_post_breakpoint = false;
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_jvmti_can_access_local_variables = false;
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_jvmti_can_post_on_exceptions = false;
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_jvmti_can_pop_frame = false;
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_dyno_klasses = nullptr;
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_dyno_locs = nullptr;
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}
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ciEnv::~ciEnv() {
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GUARDED_VM_ENTRY(
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CompilerThread* current_thread = CompilerThread::current();
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_factory->remove_symbols();
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// Need safepoint to clear the env on the thread. RedefineClasses might
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// be reading it.
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current_thread->set_env(nullptr);
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)
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}
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// ------------------------------------------------------------------
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// Cache Jvmti state
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bool ciEnv::cache_jvmti_state() {
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VM_ENTRY_MARK;
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// Get Jvmti capabilities under lock to get consistent values.
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MutexLocker mu(JvmtiThreadState_lock);
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_jvmti_redefinition_count = JvmtiExport::redefinition_count();
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_jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint();
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_jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables();
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_jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions();
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_jvmti_can_pop_frame = JvmtiExport::can_pop_frame();
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_jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info();
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_jvmti_can_walk_any_space = JvmtiExport::can_walk_any_space();
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return _task != nullptr && _task->method()->is_old();
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}
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bool ciEnv::jvmti_state_changed() const {
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// Some classes were redefined
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if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) {
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return true;
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}
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if (!_jvmti_can_access_local_variables &&
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JvmtiExport::can_access_local_variables()) {
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return true;
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}
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if (!_jvmti_can_hotswap_or_post_breakpoint &&
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JvmtiExport::can_hotswap_or_post_breakpoint()) {
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return true;
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}
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if (!_jvmti_can_post_on_exceptions &&
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JvmtiExport::can_post_on_exceptions()) {
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return true;
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}
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if (!_jvmti_can_pop_frame &&
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JvmtiExport::can_pop_frame()) {
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return true;
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}
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if (!_jvmti_can_get_owned_monitor_info &&
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JvmtiExport::can_get_owned_monitor_info()) {
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return true;
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}
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if (!_jvmti_can_walk_any_space &&
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JvmtiExport::can_walk_any_space()) {
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return true;
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}
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return false;
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}
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// ------------------------------------------------------------------
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// Cache DTrace flags
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void ciEnv::cache_dtrace_flags() {
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// Need lock?
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_dtrace_method_probes = DTraceMethodProbes;
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_dtrace_alloc_probes = DTraceAllocProbes;
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}
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// ------------------------------------------------------------------
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// helper for lazy exception creation
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ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) {
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VM_ENTRY_MARK;
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if (handle == nullptr) {
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// Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance.
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InstanceKlass* ik = SystemDictionary::find_instance_klass(THREAD, name, Handle(), Handle());
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jobject objh = nullptr;
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if (ik != nullptr) {
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oop obj = ik->allocate_instance(THREAD);
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if (!HAS_PENDING_EXCEPTION)
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objh = JNIHandles::make_global(Handle(THREAD, obj));
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}
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if (HAS_PENDING_EXCEPTION) {
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CLEAR_PENDING_EXCEPTION;
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} else {
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handle = objh;
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}
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}
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oop obj = JNIHandles::resolve(handle);
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return obj == nullptr? nullptr: get_object(obj)->as_instance();
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}
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ciInstanceKlass* ciEnv::get_box_klass_for_primitive_type(BasicType type) {
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switch (type) {
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case T_BOOLEAN: return Boolean_klass();
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case T_BYTE : return Byte_klass();
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case T_CHAR : return Character_klass();
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case T_SHORT : return Short_klass();
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case T_INT : return Integer_klass();
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case T_LONG : return Long_klass();
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case T_FLOAT : return Float_klass();
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case T_DOUBLE : return Double_klass();
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default:
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assert(false, "not a primitive: %s", type2name(type));
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return nullptr;
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}
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}
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ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() {
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if (_ArrayIndexOutOfBoundsException_instance == nullptr) {
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_ArrayIndexOutOfBoundsException_instance
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= get_or_create_exception(_ArrayIndexOutOfBoundsException_handle,
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vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
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}
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return _ArrayIndexOutOfBoundsException_instance;
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}
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ciInstance* ciEnv::ArrayStoreException_instance() {
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if (_ArrayStoreException_instance == nullptr) {
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_ArrayStoreException_instance
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= get_or_create_exception(_ArrayStoreException_handle,
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vmSymbols::java_lang_ArrayStoreException());
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}
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return _ArrayStoreException_instance;
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}
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ciInstance* ciEnv::ClassCastException_instance() {
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if (_ClassCastException_instance == nullptr) {
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_ClassCastException_instance
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= get_or_create_exception(_ClassCastException_handle,
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vmSymbols::java_lang_ClassCastException());
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}
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return _ClassCastException_instance;
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}
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ciInstance* ciEnv::the_null_string() {
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if (_the_null_string == nullptr) {
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VM_ENTRY_MARK;
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_the_null_string = get_object(Universe::the_null_string())->as_instance();
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}
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return _the_null_string;
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}
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ciInstance* ciEnv::the_min_jint_string() {
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if (_the_min_jint_string == nullptr) {
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VM_ENTRY_MARK;
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_the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance();
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}
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return _the_min_jint_string;
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}
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// ------------------------------------------------------------------
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// ciEnv::get_method_from_handle
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ciMethod* ciEnv::get_method_from_handle(Method* method) {
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VM_ENTRY_MARK;
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return get_metadata(method)->as_method();
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}
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// ------------------------------------------------------------------
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// ciEnv::check_klass_accessiblity
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//
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// Note: the logic of this method should mirror the logic of
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// ConstantPool::verify_constant_pool_resolve.
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bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass,
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Klass* resolved_klass) {
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if (accessing_klass == nullptr || !accessing_klass->is_loaded()) {
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return true;
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}
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if (accessing_klass->is_obj_array_klass()) {
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accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass();
|
|
}
|
|
if (!accessing_klass->is_instance_klass()) {
|
|
return true;
|
|
}
|
|
|
|
if (resolved_klass->is_objArray_klass()) {
|
|
// Find the element klass, if this is an array.
|
|
resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass();
|
|
}
|
|
if (resolved_klass->is_instance_klass()) {
|
|
return (Reflection::verify_class_access(accessing_klass->get_Klass(),
|
|
InstanceKlass::cast(resolved_klass),
|
|
true) == Reflection::ACCESS_OK);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_name_impl
|
|
ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass,
|
|
const constantPoolHandle& cpool,
|
|
ciSymbol* name,
|
|
bool require_local) {
|
|
ASSERT_IN_VM;
|
|
Thread* current = Thread::current();
|
|
|
|
// Now we need to check the SystemDictionary
|
|
Symbol* sym = name->get_symbol();
|
|
if (Signature::has_envelope(sym)) {
|
|
// This is a name from a signature. Strip off the trimmings.
|
|
// Call recursive to keep scope of strippedsym.
|
|
TempNewSymbol strippedsym = Signature::strip_envelope(sym);
|
|
ciSymbol* strippedname = get_symbol(strippedsym);
|
|
return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local);
|
|
}
|
|
|
|
// Check for prior unloaded klass. The SystemDictionary's answers
|
|
// can vary over time but the compiler needs consistency.
|
|
ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name);
|
|
if (unloaded_klass != nullptr) {
|
|
if (require_local) return nullptr;
|
|
return unloaded_klass;
|
|
}
|
|
|
|
Handle loader;
|
|
Handle domain;
|
|
if (accessing_klass != nullptr) {
|
|
loader = Handle(current, accessing_klass->loader());
|
|
domain = Handle(current, accessing_klass->protection_domain());
|
|
}
|
|
|
|
Klass* found_klass = require_local ?
|
|
SystemDictionary::find_instance_or_array_klass(current, sym, loader, domain) :
|
|
SystemDictionary::find_constrained_instance_or_array_klass(current, sym, loader);
|
|
|
|
// If we fail to find an array klass, look again for its element type.
|
|
// The element type may be available either locally or via constraints.
|
|
// In either case, if we can find the element type in the system dictionary,
|
|
// we must build an array type around it. The CI requires array klasses
|
|
// to be loaded if their element klasses are loaded, except when memory
|
|
// is exhausted.
|
|
if (Signature::is_array(sym) &&
|
|
(sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) {
|
|
// We have an unloaded array.
|
|
// Build it on the fly if the element class exists.
|
|
SignatureStream ss(sym, false);
|
|
ss.skip_array_prefix(1);
|
|
// Get element ciKlass recursively.
|
|
ciKlass* elem_klass =
|
|
get_klass_by_name_impl(accessing_klass,
|
|
cpool,
|
|
get_symbol(ss.as_symbol()),
|
|
require_local);
|
|
if (elem_klass != nullptr && elem_klass->is_loaded()) {
|
|
// Now make an array for it
|
|
return ciObjArrayKlass::make_impl(elem_klass);
|
|
}
|
|
}
|
|
|
|
if (found_klass == nullptr && !cpool.is_null() && cpool->has_preresolution()) {
|
|
// Look inside the constant pool for pre-resolved class entries.
|
|
for (int i = cpool->length() - 1; i >= 1; i--) {
|
|
if (cpool->tag_at(i).is_klass()) {
|
|
Klass* kls = cpool->resolved_klass_at(i);
|
|
if (kls->name() == sym) {
|
|
found_klass = kls;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (found_klass != nullptr) {
|
|
// Found it. Build a CI handle.
|
|
return get_klass(found_klass);
|
|
}
|
|
|
|
if (require_local) return nullptr;
|
|
|
|
// Not yet loaded into the VM, or not governed by loader constraints.
|
|
// Make a CI representative for it.
|
|
return get_unloaded_klass(accessing_klass, name);
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_name
|
|
ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass,
|
|
ciSymbol* klass_name,
|
|
bool require_local) {
|
|
GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,
|
|
constantPoolHandle(),
|
|
klass_name,
|
|
require_local);)
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_index_impl
|
|
//
|
|
// Implementation of get_klass_by_index.
|
|
ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool,
|
|
int index,
|
|
bool& is_accessible,
|
|
ciInstanceKlass* accessor) {
|
|
Klass* klass = nullptr;
|
|
Symbol* klass_name = nullptr;
|
|
|
|
if (cpool->tag_at(index).is_symbol()) {
|
|
klass_name = cpool->symbol_at(index);
|
|
} else {
|
|
// Check if it's resolved if it's not a symbol constant pool entry.
|
|
klass = ConstantPool::klass_at_if_loaded(cpool, index);
|
|
// Try to look it up by name.
|
|
if (klass == nullptr) {
|
|
klass_name = cpool->klass_name_at(index);
|
|
}
|
|
}
|
|
|
|
if (klass == nullptr) {
|
|
// Not found in constant pool. Use the name to do the lookup.
|
|
ciKlass* k = get_klass_by_name_impl(accessor,
|
|
cpool,
|
|
get_symbol(klass_name),
|
|
false);
|
|
// Calculate accessibility the hard way.
|
|
if (!k->is_loaded()) {
|
|
is_accessible = false;
|
|
} else if (k->loader() != accessor->loader() &&
|
|
get_klass_by_name_impl(accessor, cpool, k->name(), true) == nullptr) {
|
|
// Loaded only remotely. Not linked yet.
|
|
is_accessible = false;
|
|
} else {
|
|
// Linked locally, and we must also check public/private, etc.
|
|
is_accessible = check_klass_accessibility(accessor, k->get_Klass());
|
|
}
|
|
return k;
|
|
}
|
|
|
|
// Check for prior unloaded klass. The SystemDictionary's answers
|
|
// can vary over time but the compiler needs consistency.
|
|
ciSymbol* name = get_symbol(klass->name());
|
|
ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name);
|
|
if (unloaded_klass != nullptr) {
|
|
is_accessible = false;
|
|
return unloaded_klass;
|
|
}
|
|
|
|
// It is known to be accessible, since it was found in the constant pool.
|
|
ciKlass* ciKlass = get_klass(klass);
|
|
is_accessible = true;
|
|
if (ReplayCompiles && ciKlass == _unloaded_ciinstance_klass) {
|
|
// Klass was unresolved at replay dump time and therefore not accessible.
|
|
is_accessible = false;
|
|
}
|
|
return ciKlass;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_klass_by_index
|
|
//
|
|
// Get a klass from the constant pool.
|
|
ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool,
|
|
int index,
|
|
bool& is_accessible,
|
|
ciInstanceKlass* accessor) {
|
|
GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);)
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::unbox_primitive_value
|
|
//
|
|
// Unbox a primitive and return it as a ciConstant.
|
|
ciConstant ciEnv::unbox_primitive_value(ciObject* cibox, BasicType expected_bt) {
|
|
jvalue value;
|
|
BasicType bt = java_lang_boxing_object::get_value(cibox->get_oop(), &value);
|
|
if (bt != expected_bt && expected_bt != T_ILLEGAL) {
|
|
assert(false, "type mismatch: %s vs %s", type2name(expected_bt), cibox->klass()->name()->as_klass_external_name());
|
|
return ciConstant();
|
|
}
|
|
switch (bt) {
|
|
case T_BOOLEAN: return ciConstant(bt, value.z);
|
|
case T_BYTE: return ciConstant(bt, value.b);
|
|
case T_SHORT: return ciConstant(bt, value.s);
|
|
case T_CHAR: return ciConstant(bt, value.c);
|
|
case T_INT: return ciConstant(bt, value.i);
|
|
case T_LONG: return ciConstant(value.j);
|
|
case T_FLOAT: return ciConstant(value.f);
|
|
case T_DOUBLE: return ciConstant(value.d);
|
|
|
|
default:
|
|
assert(false, "not a primitive type: %s", type2name(bt));
|
|
return ciConstant();
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_resolved_constant
|
|
//
|
|
ciConstant ciEnv::get_resolved_constant(const constantPoolHandle& cpool, int obj_index) {
|
|
assert(obj_index >= 0, "");
|
|
oop obj = cpool->resolved_reference_at(obj_index);
|
|
if (obj == nullptr) {
|
|
// Unresolved constant. It is resolved when the corresponding slot contains a non-null reference.
|
|
// Null constant is represented as a sentinel (non-null) value.
|
|
return ciConstant();
|
|
} else if (obj == Universe::the_null_sentinel()) {
|
|
return ciConstant(T_OBJECT, get_object(nullptr));
|
|
} else {
|
|
ciObject* ciobj = get_object(obj);
|
|
if (ciobj->is_array()) {
|
|
return ciConstant(T_ARRAY, ciobj);
|
|
} else {
|
|
int cp_index = cpool->object_to_cp_index(obj_index);
|
|
BasicType bt = cpool->basic_type_for_constant_at(cp_index);
|
|
if (is_java_primitive(bt)) {
|
|
assert(cpool->tag_at(cp_index).is_dynamic_constant(), "sanity");
|
|
return unbox_primitive_value(ciobj, bt);
|
|
} else {
|
|
assert(ciobj->is_instance(), "should be an instance");
|
|
return ciConstant(T_OBJECT, ciobj);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_constant_by_index_impl
|
|
//
|
|
// Implementation of get_constant_by_index().
|
|
ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool,
|
|
int index, int obj_index,
|
|
ciInstanceKlass* accessor) {
|
|
if (obj_index >= 0) {
|
|
ciConstant con = get_resolved_constant(cpool, obj_index);
|
|
if (con.is_valid()) {
|
|
return con;
|
|
}
|
|
}
|
|
constantTag tag = cpool->tag_at(index);
|
|
if (tag.is_int()) {
|
|
return ciConstant(T_INT, (jint)cpool->int_at(index));
|
|
} else if (tag.is_long()) {
|
|
return ciConstant((jlong)cpool->long_at(index));
|
|
} else if (tag.is_float()) {
|
|
return ciConstant((jfloat)cpool->float_at(index));
|
|
} else if (tag.is_double()) {
|
|
return ciConstant((jdouble)cpool->double_at(index));
|
|
} else if (tag.is_string()) {
|
|
EXCEPTION_CONTEXT;
|
|
assert(obj_index >= 0, "should have an object index");
|
|
oop string = cpool->string_at(index, obj_index, THREAD);
|
|
if (HAS_PENDING_EXCEPTION) {
|
|
CLEAR_PENDING_EXCEPTION;
|
|
record_out_of_memory_failure();
|
|
return ciConstant();
|
|
}
|
|
ciInstance* constant = get_object(string)->as_instance();
|
|
return ciConstant(T_OBJECT, constant);
|
|
} else if (tag.is_unresolved_klass_in_error()) {
|
|
return ciConstant(T_OBJECT, get_unloaded_klass_mirror(nullptr));
|
|
} else if (tag.is_klass() || tag.is_unresolved_klass()) {
|
|
bool will_link;
|
|
ciKlass* klass = get_klass_by_index_impl(cpool, index, will_link, accessor);
|
|
ciInstance* mirror = (will_link ? klass->java_mirror() : get_unloaded_klass_mirror(klass));
|
|
return ciConstant(T_OBJECT, mirror);
|
|
} else if (tag.is_method_type() || tag.is_method_type_in_error()) {
|
|
// must execute Java code to link this CP entry into cache[i].f1
|
|
assert(obj_index >= 0, "should have an object index");
|
|
ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index));
|
|
ciObject* ciobj = get_unloaded_method_type_constant(signature);
|
|
return ciConstant(T_OBJECT, ciobj);
|
|
} else if (tag.is_method_handle() || tag.is_method_handle_in_error()) {
|
|
// must execute Java code to link this CP entry into cache[i].f1
|
|
assert(obj_index >= 0, "should have an object index");
|
|
bool ignore_will_link;
|
|
int ref_kind = cpool->method_handle_ref_kind_at(index);
|
|
int callee_index = cpool->method_handle_klass_index_at(index);
|
|
ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor);
|
|
ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index));
|
|
ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index));
|
|
ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind);
|
|
return ciConstant(T_OBJECT, ciobj);
|
|
} else if (tag.is_dynamic_constant() || tag.is_dynamic_constant_in_error()) {
|
|
assert(obj_index >= 0, "should have an object index");
|
|
return ciConstant(T_OBJECT, unloaded_ciinstance()); // unresolved dynamic constant
|
|
} else {
|
|
assert(false, "unknown tag: %d (%s)", tag.value(), tag.internal_name());
|
|
return ciConstant();
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_constant_by_index
|
|
//
|
|
// Pull a constant out of the constant pool. How appropriate.
|
|
//
|
|
// Implementation note: this query is currently in no way cached.
|
|
ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool,
|
|
int pool_index, int cache_index,
|
|
ciInstanceKlass* accessor) {
|
|
GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);)
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_field_by_index_impl
|
|
//
|
|
// Implementation of get_field_by_index.
|
|
//
|
|
// Implementation note: the results of field lookups are cached
|
|
// in the accessor klass.
|
|
ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor,
|
|
int index, Bytecodes::Code bc) {
|
|
ciConstantPoolCache* cache = accessor->field_cache();
|
|
if (cache == nullptr) {
|
|
ciField* field = new (arena()) ciField(accessor, index, bc);
|
|
return field;
|
|
} else {
|
|
ciField* field = (ciField*)cache->get(index);
|
|
if (field == nullptr) {
|
|
field = new (arena()) ciField(accessor, index, bc);
|
|
cache->insert(index, field);
|
|
}
|
|
return field;
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_field_by_index
|
|
//
|
|
// Get a field by index from a klass's constant pool.
|
|
ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor,
|
|
int index, Bytecodes::Code bc) {
|
|
GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index, bc);)
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::lookup_method
|
|
//
|
|
// Perform an appropriate method lookup based on accessor, holder,
|
|
// name, signature, and bytecode.
|
|
Method* ciEnv::lookup_method(ciInstanceKlass* accessor,
|
|
ciKlass* holder,
|
|
Symbol* name,
|
|
Symbol* sig,
|
|
Bytecodes::Code bc,
|
|
constantTag tag) {
|
|
InstanceKlass* accessor_klass = accessor->get_instanceKlass();
|
|
Klass* holder_klass = holder->get_Klass();
|
|
|
|
// Accessibility checks are performed in ciEnv::get_method_by_index_impl.
|
|
assert(check_klass_accessibility(accessor, holder_klass), "holder not accessible");
|
|
|
|
LinkInfo link_info(holder_klass, name, sig, accessor_klass,
|
|
LinkInfo::AccessCheck::required,
|
|
LinkInfo::LoaderConstraintCheck::required,
|
|
tag);
|
|
switch (bc) {
|
|
case Bytecodes::_invokestatic:
|
|
return LinkResolver::resolve_static_call_or_null(link_info);
|
|
case Bytecodes::_invokespecial:
|
|
return LinkResolver::resolve_special_call_or_null(link_info);
|
|
case Bytecodes::_invokeinterface:
|
|
return LinkResolver::linktime_resolve_interface_method_or_null(link_info);
|
|
case Bytecodes::_invokevirtual:
|
|
return LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
|
|
default:
|
|
fatal("Unhandled bytecode: %s", Bytecodes::name(bc));
|
|
return nullptr; // silence compiler warnings
|
|
}
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_method_by_index_impl
|
|
ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool,
|
|
int index, Bytecodes::Code bc,
|
|
ciInstanceKlass* accessor) {
|
|
assert(cpool.not_null(), "need constant pool");
|
|
assert(accessor != nullptr, "need origin of access");
|
|
if (bc == Bytecodes::_invokedynamic) {
|
|
// FIXME: code generation could allow for null (unlinked) call site
|
|
// The call site could be made patchable as follows:
|
|
// Load the appendix argument from the constant pool.
|
|
// Test the appendix argument and jump to a known deopt routine if it is null.
|
|
// Jump through a patchable call site, which is initially a deopt routine.
|
|
// Patch the call site to the nmethod entry point of the static compiled lambda form.
|
|
// As with other two-component call sites, both values must be independently verified.
|
|
int indy_index = cpool->decode_invokedynamic_index(index);
|
|
assert (indy_index >= 0, "should be");
|
|
assert(indy_index < cpool->cache()->resolved_indy_entries_length(), "impossible");
|
|
Method* adapter = cpool->resolved_indy_entry_at(indy_index)->method();
|
|
// Resolved if the adapter is non null.
|
|
if (adapter != nullptr) {
|
|
return get_method(adapter);
|
|
}
|
|
|
|
// Fake a method that is equivalent to a declared method.
|
|
ciInstanceKlass* holder = get_instance_klass(vmClasses::MethodHandle_klass());
|
|
ciSymbol* name = ciSymbols::invokeBasic_name();
|
|
ciSymbol* signature = get_symbol(cpool->signature_ref_at(index, bc));
|
|
return get_unloaded_method(holder, name, signature, accessor);
|
|
} else {
|
|
const int holder_index = cpool->klass_ref_index_at(index, bc);
|
|
bool holder_is_accessible;
|
|
ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor);
|
|
|
|
// Get the method's name and signature.
|
|
Symbol* name_sym = cpool->name_ref_at(index, bc);
|
|
Symbol* sig_sym = cpool->signature_ref_at(index, bc);
|
|
|
|
if (cpool->has_preresolution()
|
|
|| ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) &&
|
|
MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) {
|
|
// Short-circuit lookups for JSR 292-related call sites.
|
|
// That is, do not rely only on name-based lookups, because they may fail
|
|
// if the names are not resolvable in the boot class loader (7056328).
|
|
switch (bc) {
|
|
case Bytecodes::_invokevirtual:
|
|
case Bytecodes::_invokeinterface:
|
|
case Bytecodes::_invokespecial:
|
|
case Bytecodes::_invokestatic:
|
|
{
|
|
Method* m = ConstantPool::method_at_if_loaded(cpool, index);
|
|
if (m != nullptr) {
|
|
return get_method(m);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (holder_is_accessible) { // Our declared holder is loaded.
|
|
constantTag tag = cpool->tag_ref_at(index, bc);
|
|
assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?");
|
|
Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag);
|
|
if (m != nullptr &&
|
|
(bc == Bytecodes::_invokestatic
|
|
? m->method_holder()->is_not_initialized()
|
|
: !m->method_holder()->is_loaded())) {
|
|
m = nullptr;
|
|
}
|
|
if (m != nullptr && ReplayCompiles && !ciReplay::is_loaded(m)) {
|
|
m = nullptr;
|
|
}
|
|
if (m != nullptr) {
|
|
// We found the method.
|
|
return get_method(m);
|
|
}
|
|
}
|
|
|
|
// Either the declared holder was not loaded, or the method could
|
|
// not be found. Create a dummy ciMethod to represent the failed
|
|
// lookup.
|
|
ciSymbol* name = get_symbol(name_sym);
|
|
ciSymbol* signature = get_symbol(sig_sym);
|
|
return get_unloaded_method(holder, name, signature, accessor);
|
|
}
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_instance_klass_for_declared_method_holder
|
|
ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) {
|
|
// For the case of <array>.clone(), the method holder can be a ciArrayKlass
|
|
// instead of a ciInstanceKlass. For that case simply pretend that the
|
|
// declared holder is Object.clone since that's where the call will bottom out.
|
|
// A more correct fix would trickle out through many interfaces in CI,
|
|
// requiring ciInstanceKlass* to become ciKlass* and many more places would
|
|
// require checks to make sure the expected type was found. Given that this
|
|
// only occurs for clone() the more extensive fix seems like overkill so
|
|
// instead we simply smear the array type into Object.
|
|
guarantee(method_holder != nullptr, "no method holder");
|
|
if (method_holder->is_instance_klass()) {
|
|
return method_holder->as_instance_klass();
|
|
} else if (method_holder->is_array_klass()) {
|
|
return current()->Object_klass();
|
|
} else {
|
|
ShouldNotReachHere();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::get_method_by_index
|
|
ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool,
|
|
int index, Bytecodes::Code bc,
|
|
ciInstanceKlass* accessor) {
|
|
GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);)
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::name_buffer
|
|
char *ciEnv::name_buffer(int req_len) {
|
|
if (_name_buffer_len < req_len) {
|
|
if (_name_buffer == nullptr) {
|
|
_name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len);
|
|
_name_buffer_len = req_len;
|
|
} else {
|
|
_name_buffer =
|
|
(char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len);
|
|
_name_buffer_len = req_len;
|
|
}
|
|
}
|
|
return _name_buffer;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::is_in_vm
|
|
bool ciEnv::is_in_vm() {
|
|
return JavaThread::current()->thread_state() == _thread_in_vm;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::validate_compile_task_dependencies
|
|
//
|
|
// Check for changes during compilation (e.g. class loads, evolution,
|
|
// breakpoints, call site invalidation).
|
|
void ciEnv::validate_compile_task_dependencies(ciMethod* target) {
|
|
if (failing()) return; // no need for further checks
|
|
|
|
Dependencies::DepType result = dependencies()->validate_dependencies(_task);
|
|
if (result != Dependencies::end_marker) {
|
|
if (result == Dependencies::call_site_target_value) {
|
|
_inc_decompile_count_on_failure = false;
|
|
record_failure("call site target change");
|
|
} else if (Dependencies::is_klass_type(result)) {
|
|
record_failure("concurrent class loading");
|
|
} else {
|
|
record_failure("invalid non-klass dependency");
|
|
}
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::register_method
|
|
void ciEnv::register_method(ciMethod* target,
|
|
int entry_bci,
|
|
CodeOffsets* offsets,
|
|
int orig_pc_offset,
|
|
CodeBuffer* code_buffer,
|
|
int frame_words,
|
|
OopMapSet* oop_map_set,
|
|
ExceptionHandlerTable* handler_table,
|
|
ImplicitExceptionTable* inc_table,
|
|
AbstractCompiler* compiler,
|
|
bool has_unsafe_access,
|
|
bool has_wide_vectors,
|
|
bool has_monitors,
|
|
int immediate_oops_patched,
|
|
RTMState rtm_state) {
|
|
VM_ENTRY_MARK;
|
|
nmethod* nm = nullptr;
|
|
{
|
|
methodHandle method(THREAD, target->get_Method());
|
|
|
|
// We require method counters to store some method state (max compilation levels) required by the compilation policy.
|
|
if (method->get_method_counters(THREAD) == nullptr) {
|
|
record_failure("can't create method counters");
|
|
// All buffers in the CodeBuffer are allocated in the CodeCache.
|
|
// If the code buffer is created on each compile attempt
|
|
// as in C2, then it must be freed.
|
|
code_buffer->free_blob();
|
|
return;
|
|
}
|
|
|
|
// Check if memory should be freed before allocation
|
|
CodeCache::gc_on_allocation();
|
|
|
|
// To prevent compile queue updates.
|
|
MutexLocker locker(THREAD, MethodCompileQueue_lock);
|
|
|
|
// Prevent InstanceKlass::add_to_hierarchy from running
|
|
// and invalidating our dependencies until we install this method.
|
|
// No safepoints are allowed. Otherwise, class redefinition can occur in between.
|
|
MutexLocker ml(Compile_lock);
|
|
NoSafepointVerifier nsv;
|
|
|
|
// Change in Jvmti state may invalidate compilation.
|
|
if (!failing() && jvmti_state_changed()) {
|
|
record_failure("Jvmti state change invalidated dependencies");
|
|
}
|
|
|
|
// Change in DTrace flags may invalidate compilation.
|
|
if (!failing() &&
|
|
( (!dtrace_method_probes() && DTraceMethodProbes) ||
|
|
(!dtrace_alloc_probes() && DTraceAllocProbes) )) {
|
|
record_failure("DTrace flags change invalidated dependencies");
|
|
}
|
|
|
|
if (!failing() && target->needs_clinit_barrier() &&
|
|
target->holder()->is_in_error_state()) {
|
|
record_failure("method holder is in error state");
|
|
}
|
|
|
|
if (!failing()) {
|
|
if (log() != nullptr) {
|
|
// Log the dependencies which this compilation declares.
|
|
dependencies()->log_all_dependencies();
|
|
}
|
|
|
|
// Encode the dependencies now, so we can check them right away.
|
|
dependencies()->encode_content_bytes();
|
|
|
|
// Check for {class loads, evolution, breakpoints, ...} during compilation
|
|
validate_compile_task_dependencies(target);
|
|
}
|
|
#if INCLUDE_RTM_OPT
|
|
if (!failing() && (rtm_state != NoRTM) &&
|
|
(method()->method_data() != nullptr) &&
|
|
(method()->method_data()->rtm_state() != rtm_state)) {
|
|
// Preemptive decompile if rtm state was changed.
|
|
record_failure("RTM state change invalidated rtm code");
|
|
}
|
|
#endif
|
|
|
|
if (failing()) {
|
|
// While not a true deoptimization, it is a preemptive decompile.
|
|
MethodData* mdo = method()->method_data();
|
|
if (mdo != nullptr && _inc_decompile_count_on_failure) {
|
|
mdo->inc_decompile_count();
|
|
}
|
|
|
|
// All buffers in the CodeBuffer are allocated in the CodeCache.
|
|
// If the code buffer is created on each compile attempt
|
|
// as in C2, then it must be freed.
|
|
code_buffer->free_blob();
|
|
return;
|
|
}
|
|
|
|
assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry");
|
|
assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry");
|
|
|
|
nm = nmethod::new_nmethod(method,
|
|
compile_id(),
|
|
entry_bci,
|
|
offsets,
|
|
orig_pc_offset,
|
|
debug_info(), dependencies(), code_buffer,
|
|
frame_words, oop_map_set,
|
|
handler_table, inc_table,
|
|
compiler, CompLevel(task()->comp_level()));
|
|
|
|
// Free codeBlobs
|
|
code_buffer->free_blob();
|
|
|
|
if (nm != nullptr) {
|
|
nm->set_has_unsafe_access(has_unsafe_access);
|
|
nm->set_has_wide_vectors(has_wide_vectors);
|
|
nm->set_has_monitors(has_monitors);
|
|
assert(!method->is_synchronized() || nm->has_monitors(), "");
|
|
#if INCLUDE_RTM_OPT
|
|
nm->set_rtm_state(rtm_state);
|
|
#endif
|
|
|
|
if (entry_bci == InvocationEntryBci) {
|
|
if (TieredCompilation) {
|
|
// If there is an old version we're done with it
|
|
CompiledMethod* old = method->code();
|
|
if (TraceMethodReplacement && old != nullptr) {
|
|
ResourceMark rm;
|
|
char *method_name = method->name_and_sig_as_C_string();
|
|
tty->print_cr("Replacing method %s", method_name);
|
|
}
|
|
if (old != nullptr) {
|
|
old->make_not_used();
|
|
}
|
|
}
|
|
|
|
LogTarget(Info, nmethod, install) lt;
|
|
if (lt.is_enabled()) {
|
|
ResourceMark rm;
|
|
char *method_name = method->name_and_sig_as_C_string();
|
|
lt.print("Installing method (%d) %s ",
|
|
task()->comp_level(), method_name);
|
|
}
|
|
// Allow the code to be executed
|
|
MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
|
|
if (nm->make_in_use()) {
|
|
method->set_code(method, nm);
|
|
}
|
|
} else {
|
|
LogTarget(Info, nmethod, install) lt;
|
|
if (lt.is_enabled()) {
|
|
ResourceMark rm;
|
|
char *method_name = method->name_and_sig_as_C_string();
|
|
lt.print("Installing osr method (%d) %s @ %d",
|
|
task()->comp_level(), method_name, entry_bci);
|
|
}
|
|
MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag);
|
|
if (nm->make_in_use()) {
|
|
method->method_holder()->add_osr_nmethod(nm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NoSafepointVerifier nsv;
|
|
if (nm != nullptr) {
|
|
// Compilation succeeded, post what we know about it
|
|
nm->post_compiled_method(task());
|
|
task()->set_num_inlined_bytecodes(num_inlined_bytecodes());
|
|
} else {
|
|
// The CodeCache is full.
|
|
record_failure("code cache is full");
|
|
}
|
|
|
|
// safepoints are allowed again
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::find_system_klass
|
|
ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) {
|
|
VM_ENTRY_MARK;
|
|
return get_klass_by_name_impl(nullptr, constantPoolHandle(), klass_name, false);
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::comp_level
|
|
int ciEnv::comp_level() {
|
|
if (task() == nullptr) return CompilationPolicy::highest_compile_level();
|
|
return task()->comp_level();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::compile_id
|
|
int ciEnv::compile_id() {
|
|
if (task() == nullptr) return 0;
|
|
return task()->compile_id();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::notice_inlined_method()
|
|
void ciEnv::notice_inlined_method(ciMethod* method) {
|
|
_num_inlined_bytecodes += method->code_size_for_inlining();
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::num_inlined_bytecodes()
|
|
int ciEnv::num_inlined_bytecodes() const {
|
|
return _num_inlined_bytecodes;
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::record_failure()
|
|
void ciEnv::record_failure(const char* reason) {
|
|
if (_failure_reason == nullptr) {
|
|
// Record the first failure reason.
|
|
_failure_reason = reason;
|
|
}
|
|
}
|
|
|
|
void ciEnv::report_failure(const char* reason) {
|
|
EventCompilationFailure event;
|
|
if (event.should_commit()) {
|
|
CompilerEvent::CompilationFailureEvent::post(event, compile_id(), reason);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::record_method_not_compilable()
|
|
void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) {
|
|
int new_compilable =
|
|
all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ;
|
|
|
|
// Only note transitions to a worse state
|
|
if (new_compilable > _compilable) {
|
|
if (log() != nullptr) {
|
|
if (all_tiers) {
|
|
log()->elem("method_not_compilable");
|
|
} else {
|
|
log()->elem("method_not_compilable_at_tier level='%d'",
|
|
current()->task()->comp_level());
|
|
}
|
|
}
|
|
_compilable = new_compilable;
|
|
|
|
// Reset failure reason; this one is more important.
|
|
_failure_reason = nullptr;
|
|
record_failure(reason);
|
|
}
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// ciEnv::record_out_of_memory_failure()
|
|
void ciEnv::record_out_of_memory_failure() {
|
|
// If memory is low, we stop compiling methods.
|
|
record_method_not_compilable("out of memory");
|
|
}
|
|
|
|
ciInstance* ciEnv::unloaded_ciinstance() {
|
|
GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();)
|
|
}
|
|
|
|
// ------------------------------------------------------------------
|
|
// Replay support
|
|
|
|
|
|
// Lookup location descriptor for the class, if any.
|
|
// Returns false if not found.
|
|
bool ciEnv::dyno_loc(const InstanceKlass* ik, const char *&loc) const {
|
|
bool found = false;
|
|
int pos = _dyno_klasses->find_sorted<const InstanceKlass*, klass_compare>(ik, found);
|
|
if (!found) {
|
|
return false;
|
|
}
|
|
loc = _dyno_locs->at(pos);
|
|
return found;
|
|
}
|
|
|
|
// Associate the current location descriptor with the given class and record for later lookup.
|
|
void ciEnv::set_dyno_loc(const InstanceKlass* ik) {
|
|
const char *loc = os::strdup(_dyno_name);
|
|
bool found = false;
|
|
int pos = _dyno_klasses->find_sorted<const InstanceKlass*, klass_compare>(ik, found);
|
|
if (found) {
|
|
_dyno_locs->at_put(pos, loc);
|
|
} else {
|
|
_dyno_klasses->insert_before(pos, ik);
|
|
_dyno_locs->insert_before(pos, loc);
|
|
}
|
|
}
|
|
|
|
// Associate the current location descriptor with the given class and record for later lookup.
|
|
// If it turns out that there are multiple locations for the given class, that conflict should
|
|
// be handled here. Currently we choose the first location found.
|
|
void ciEnv::record_best_dyno_loc(const InstanceKlass* ik) {
|
|
if (!ik->is_hidden()) {
|
|
return;
|
|
}
|
|
const char *loc0;
|
|
if (!dyno_loc(ik, loc0)) {
|
|
set_dyno_loc(ik);
|
|
}
|
|
}
|
|
|
|
// Look up the location descriptor for the given class and print it to the output stream.
|
|
bool ciEnv::print_dyno_loc(outputStream* out, const InstanceKlass* ik) const {
|
|
const char *loc;
|
|
if (dyno_loc(ik, loc)) {
|
|
out->print("%s", loc);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Look up the location descriptor for the given class and return it as a string.
|
|
// Returns null if no location is found.
|
|
const char *ciEnv::dyno_name(const InstanceKlass* ik) const {
|
|
if (ik->is_hidden()) {
|
|
stringStream ss;
|
|
if (print_dyno_loc(&ss, ik)) {
|
|
ss.print(" ;"); // add terminator
|
|
const char* call_site = ss.as_string();
|
|
return call_site;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
// Look up the location descriptor for the given class and return it as a string.
|
|
// Returns the class name as a fallback if no location is found.
|
|
const char *ciEnv::replay_name(ciKlass* k) const {
|
|
if (k->is_instance_klass()) {
|
|
return replay_name(k->as_instance_klass()->get_instanceKlass());
|
|
}
|
|
return k->name()->as_quoted_ascii();
|
|
}
|
|
|
|
// Look up the location descriptor for the given class and return it as a string.
|
|
// Returns the class name as a fallback if no location is found.
|
|
const char *ciEnv::replay_name(const InstanceKlass* ik) const {
|
|
const char* name = dyno_name(ik);
|
|
if (name != nullptr) {
|
|
return name;
|
|
}
|
|
return ik->name()->as_quoted_ascii();
|
|
}
|
|
|
|
// Process a java.lang.invoke.MemberName object and record any dynamic locations.
|
|
void ciEnv::record_member(Thread* thread, oop member) {
|
|
assert(java_lang_invoke_MemberName::is_instance(member), "!");
|
|
// Check MemberName.clazz field
|
|
oop clazz = java_lang_invoke_MemberName::clazz(member);
|
|
if (clazz->klass()->is_instance_klass()) {
|
|
RecordLocation fp(this, "clazz");
|
|
InstanceKlass* ik = InstanceKlass::cast(clazz->klass());
|
|
record_best_dyno_loc(ik);
|
|
}
|
|
// Check MemberName.method.vmtarget field
|
|
Method* vmtarget = java_lang_invoke_MemberName::vmtarget(member);
|
|
if (vmtarget != nullptr) {
|
|
RecordLocation fp2(this, "<vmtarget>");
|
|
InstanceKlass* ik = vmtarget->method_holder();
|
|
record_best_dyno_loc(ik);
|
|
}
|
|
}
|
|
|
|
// Read an object field. Lookup is done by name only.
|
|
static inline oop obj_field(oop obj, const char* name) {
|
|
return ciReplay::obj_field(obj, name);
|
|
}
|
|
|
|
// Process a java.lang.invoke.LambdaForm object and record any dynamic locations.
|
|
void ciEnv::record_lambdaform(Thread* thread, oop form) {
|
|
assert(java_lang_invoke_LambdaForm::is_instance(form), "!");
|
|
|
|
{
|
|
// Check LambdaForm.vmentry field
|
|
oop member = java_lang_invoke_LambdaForm::vmentry(form);
|
|
RecordLocation fp0(this, "vmentry");
|
|
record_member(thread, member);
|
|
}
|
|
|
|
// Check LambdaForm.names array
|
|
objArrayOop names = (objArrayOop)obj_field(form, "names");
|
|
if (names != nullptr) {
|
|
RecordLocation lp0(this, "names");
|
|
int len = names->length();
|
|
for (int i = 0; i < len; ++i) {
|
|
oop name = names->obj_at(i);
|
|
RecordLocation lp1(this, "%d", i);
|
|
// Check LambdaForm.names[i].function field
|
|
RecordLocation lp2(this, "function");
|
|
oop function = obj_field(name, "function");
|
|
if (function != nullptr) {
|
|
// Check LambdaForm.names[i].function.member field
|
|
oop member = obj_field(function, "member");
|
|
if (member != nullptr) {
|
|
RecordLocation lp3(this, "member");
|
|
record_member(thread, member);
|
|
}
|
|
// Check LambdaForm.names[i].function.resolvedHandle field
|
|
oop mh = obj_field(function, "resolvedHandle");
|
|
if (mh != nullptr) {
|
|
RecordLocation lp3(this, "resolvedHandle");
|
|
record_mh(thread, mh);
|
|
}
|
|
// Check LambdaForm.names[i].function.invoker field
|
|
oop invoker = obj_field(function, "invoker");
|
|
if (invoker != nullptr) {
|
|
RecordLocation lp3(this, "invoker");
|
|
record_mh(thread, invoker);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Process a java.lang.invoke.MethodHandle object and record any dynamic locations.
|
|
void ciEnv::record_mh(Thread* thread, oop mh) {
|
|
{
|
|
// Check MethodHandle.form field
|
|
oop form = java_lang_invoke_MethodHandle::form(mh);
|
|
RecordLocation fp(this, "form");
|
|
record_lambdaform(thread, form);
|
|
}
|
|
// Check DirectMethodHandle.member field
|
|
if (java_lang_invoke_DirectMethodHandle::is_instance(mh)) {
|
|
oop member = java_lang_invoke_DirectMethodHandle::member(mh);
|
|
RecordLocation fp(this, "member");
|
|
record_member(thread, member);
|
|
} else {
|
|
// Check <MethodHandle subclass>.argL<n> fields
|
|
// Probably BoundMethodHandle.Species_L*, but we only care if the field exists
|
|
char arg_name[] = "argLXX";
|
|
int max_arg = 99;
|
|
for (int index = 0; index <= max_arg; ++index) {
|
|
jio_snprintf(arg_name, sizeof (arg_name), "argL%d", index);
|
|
oop arg = obj_field(mh, arg_name);
|
|
if (arg != nullptr) {
|
|
RecordLocation fp(this, "%s", arg_name);
|
|
if (arg->klass()->is_instance_klass()) {
|
|
InstanceKlass* ik2 = InstanceKlass::cast(arg->klass());
|
|
record_best_dyno_loc(ik2);
|
|
record_call_site_obj(thread, arg);
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Process an object found at an invokedynamic/invokehandle call site and record any dynamic locations.
|
|
// Types currently supported are MethodHandle and CallSite.
|
|
// The object is typically the "appendix" object, or Bootstrap Method (BSM) object.
|
|
void ciEnv::record_call_site_obj(Thread* thread, oop obj)
|
|
{
|
|
if (obj != nullptr) {
|
|
if (java_lang_invoke_MethodHandle::is_instance(obj)) {
|
|
record_mh(thread, obj);
|
|
} else if (java_lang_invoke_ConstantCallSite::is_instance(obj)) {
|
|
oop target = java_lang_invoke_CallSite::target(obj);
|
|
if (target->klass()->is_instance_klass()) {
|
|
RecordLocation fp(this, "target");
|
|
InstanceKlass* ik = InstanceKlass::cast(target->klass());
|
|
record_best_dyno_loc(ik);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Process an adapter Method* found at an invokedynamic/invokehandle call site and record any dynamic locations.
|
|
void ciEnv::record_call_site_method(Thread* thread, Method* adapter) {
|
|
InstanceKlass* holder = adapter->method_holder();
|
|
if (!holder->is_hidden()) {
|
|
return;
|
|
}
|
|
RecordLocation fp(this, "<adapter>");
|
|
record_best_dyno_loc(holder);
|
|
}
|
|
|
|
// Process an invokedynamic call site and record any dynamic locations.
|
|
void ciEnv::process_invokedynamic(const constantPoolHandle &cp, int indy_index, JavaThread* thread) {
|
|
int index = cp->decode_invokedynamic_index(indy_index);
|
|
ResolvedIndyEntry* indy_info = cp->resolved_indy_entry_at(index);
|
|
if (indy_info->method() != nullptr) {
|
|
// process the adapter
|
|
Method* adapter = indy_info->method();
|
|
record_call_site_method(thread, adapter);
|
|
// process the appendix
|
|
oop appendix = cp->resolved_reference_from_indy(index);
|
|
{
|
|
RecordLocation fp(this, "<appendix>");
|
|
record_call_site_obj(thread, appendix);
|
|
}
|
|
// process the BSM
|
|
int pool_index = indy_info->constant_pool_index();
|
|
BootstrapInfo bootstrap_specifier(cp, pool_index, index);
|
|
oop bsm = cp->resolve_possibly_cached_constant_at(bootstrap_specifier.bsm_index(), thread);
|
|
{
|
|
RecordLocation fp(this, "<bsm>");
|
|
record_call_site_obj(thread, bsm);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Process an invokehandle call site and record any dynamic locations.
|
|
void ciEnv::process_invokehandle(const constantPoolHandle &cp, int index, JavaThread* thread) {
|
|
const int holder_index = cp->klass_ref_index_at(index, Bytecodes::_invokehandle);
|
|
if (!cp->tag_at(holder_index).is_klass()) {
|
|
return; // not resolved
|
|
}
|
|
Klass* holder = ConstantPool::klass_at_if_loaded(cp, holder_index);
|
|
Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle);
|
|
if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
|
|
ResolvedMethodEntry* method_entry = cp->resolved_method_entry_at(index);
|
|
if (method_entry->is_resolved(Bytecodes::_invokehandle)) {
|
|
// process the adapter
|
|
Method* adapter = method_entry->method();
|
|
oop appendix = cp->cache()->appendix_if_resolved(method_entry);
|
|
record_call_site_method(thread, adapter);
|
|
// process the appendix
|
|
{
|
|
RecordLocation fp(this, "<appendix>");
|
|
record_call_site_obj(thread, appendix);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Search the class hierarchy for dynamic classes reachable through dynamic call sites or
|
|
// constant pool entries and record for future lookup.
|
|
void ciEnv::find_dynamic_call_sites() {
|
|
_dyno_klasses = new (arena()) GrowableArray<const InstanceKlass*>(arena(), 100, 0, nullptr);
|
|
_dyno_locs = new (arena()) GrowableArray<const char *>(arena(), 100, 0, nullptr);
|
|
|
|
// Iterate over the class hierarchy
|
|
for (ClassHierarchyIterator iter(vmClasses::Object_klass()); !iter.done(); iter.next()) {
|
|
Klass* sub = iter.klass();
|
|
if (sub->is_instance_klass()) {
|
|
InstanceKlass *isub = InstanceKlass::cast(sub);
|
|
InstanceKlass* ik = isub;
|
|
if (!ik->is_linked()) {
|
|
continue;
|
|
}
|
|
if (ik->is_hidden()) {
|
|
continue;
|
|
}
|
|
JavaThread* thread = JavaThread::current();
|
|
const constantPoolHandle pool(thread, ik->constants());
|
|
|
|
// Look for invokedynamic/invokehandle call sites
|
|
for (int i = 0; i < ik->methods()->length(); ++i) {
|
|
Method* m = ik->methods()->at(i);
|
|
|
|
BytecodeStream bcs(methodHandle(thread, m));
|
|
while (!bcs.is_last_bytecode()) {
|
|
Bytecodes::Code opcode = bcs.next();
|
|
opcode = bcs.raw_code();
|
|
switch (opcode) {
|
|
case Bytecodes::_invokedynamic:
|
|
case Bytecodes::_invokehandle: {
|
|
RecordLocation fp(this, "@bci %s %s %s %d",
|
|
ik->name()->as_quoted_ascii(),
|
|
m->name()->as_quoted_ascii(), m->signature()->as_quoted_ascii(),
|
|
bcs.bci());
|
|
if (opcode == Bytecodes::_invokedynamic) {
|
|
int index = bcs.get_index_u4();
|
|
process_invokedynamic(pool, index, thread);
|
|
} else {
|
|
assert(opcode == Bytecodes::_invokehandle, "new switch label added?");
|
|
int cp_cache_index = bcs.get_index_u2();
|
|
process_invokehandle(pool, cp_cache_index, thread);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Look for MethodHandle constant pool entries
|
|
RecordLocation fp(this, "@cpi %s", ik->name()->as_quoted_ascii());
|
|
int len = pool->length();
|
|
for (int i = 0; i < len; ++i) {
|
|
if (pool->tag_at(i).is_method_handle()) {
|
|
bool found_it;
|
|
oop mh = pool->find_cached_constant_at(i, found_it, thread);
|
|
if (mh != nullptr) {
|
|
RecordLocation fp(this, "%d", i);
|
|
record_mh(thread, mh);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ciEnv::dump_compile_data(outputStream* out) {
|
|
CompileTask* task = this->task();
|
|
if (task) {
|
|
#ifdef COMPILER2
|
|
if (ReplayReduce && compiler_data() != nullptr) {
|
|
// Dump C2 "reduced" inlining data.
|
|
((Compile*)compiler_data())->dump_inline_data_reduced(out);
|
|
}
|
|
#endif
|
|
Method* method = task->method();
|
|
int entry_bci = task->osr_bci();
|
|
int comp_level = task->comp_level();
|
|
out->print("compile ");
|
|
get_method(method)->dump_name_as_ascii(out);
|
|
out->print(" %d %d", entry_bci, comp_level);
|
|
if (compiler_data() != nullptr) {
|
|
if (is_c2_compile(comp_level)) {
|
|
#ifdef COMPILER2
|
|
// Dump C2 inlining data.
|
|
((Compile*)compiler_data())->dump_inline_data(out);
|
|
#endif
|
|
} else if (is_c1_compile(comp_level)) {
|
|
#ifdef COMPILER1
|
|
// Dump C1 inlining data.
|
|
((Compilation*)compiler_data())->dump_inline_data(out);
|
|
#endif
|
|
}
|
|
}
|
|
out->cr();
|
|
}
|
|
}
|
|
|
|
// Called from VM error reporter, so be careful.
|
|
// Don't safepoint or acquire any locks.
|
|
//
|
|
void ciEnv::dump_replay_data_helper(outputStream* out) {
|
|
NoSafepointVerifier no_safepoint;
|
|
ResourceMark rm;
|
|
|
|
dump_replay_data_version(out);
|
|
#if INCLUDE_JVMTI
|
|
out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables);
|
|
out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint);
|
|
out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions);
|
|
#endif // INCLUDE_JVMTI
|
|
|
|
find_dynamic_call_sites();
|
|
|
|
GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata();
|
|
out->print_cr("# %d ciObject found", objects->length());
|
|
|
|
// The very first entry is the InstanceKlass of the root method of the current compilation in order to get the right
|
|
// protection domain to load subsequent classes during replay compilation.
|
|
ciInstanceKlass::dump_replay_instanceKlass(out, task()->method()->method_holder());
|
|
|
|
for (int i = 0; i < objects->length(); i++) {
|
|
objects->at(i)->dump_replay_data(out);
|
|
}
|
|
dump_compile_data(out);
|
|
out->flush();
|
|
}
|
|
|
|
// Called from VM error reporter, so be careful.
|
|
// Don't safepoint or acquire any locks.
|
|
//
|
|
void ciEnv::dump_replay_data_unsafe(outputStream* out) {
|
|
GUARDED_VM_ENTRY(
|
|
dump_replay_data_helper(out);
|
|
)
|
|
}
|
|
|
|
void ciEnv::dump_replay_data(outputStream* out) {
|
|
GUARDED_VM_ENTRY(
|
|
MutexLocker ml(Compile_lock);
|
|
dump_replay_data_helper(out);
|
|
)
|
|
}
|
|
|
|
void ciEnv::dump_replay_data(int compile_id) {
|
|
char buffer[64];
|
|
int ret = jio_snprintf(buffer, sizeof(buffer), "replay_pid%d_compid%d.log", os::current_process_id(), compile_id);
|
|
if (ret > 0) {
|
|
int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
|
|
if (fd != -1) {
|
|
FILE* replay_data_file = os::fdopen(fd, "w");
|
|
if (replay_data_file != nullptr) {
|
|
fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
|
|
dump_replay_data(&replay_data_stream);
|
|
tty->print_cr("# Compiler replay data is saved as: %s", buffer);
|
|
} else {
|
|
tty->print_cr("# Can't open file to dump replay data.");
|
|
close(fd);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ciEnv::dump_inline_data(int compile_id) {
|
|
char buffer[64];
|
|
int ret = jio_snprintf(buffer, sizeof(buffer), "inline_pid%d_compid%d.log", os::current_process_id(), compile_id);
|
|
if (ret > 0) {
|
|
int fd = os::open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
|
|
if (fd != -1) {
|
|
FILE* inline_data_file = os::fdopen(fd, "w");
|
|
if (inline_data_file != nullptr) {
|
|
fileStream replay_data_stream(inline_data_file, /*need_close=*/true);
|
|
GUARDED_VM_ENTRY(
|
|
MutexLocker ml(Compile_lock);
|
|
dump_replay_data_version(&replay_data_stream);
|
|
dump_compile_data(&replay_data_stream);
|
|
)
|
|
replay_data_stream.flush();
|
|
tty->print("# Compiler inline data is saved as: ");
|
|
tty->print_cr("%s", buffer);
|
|
} else {
|
|
tty->print_cr("# Can't open file to dump inline data.");
|
|
close(fd);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ciEnv::dump_replay_data_version(outputStream* out) {
|
|
out->print_cr("version %d", REPLAY_VERSION);
|
|
}
|