84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "dex_file.h"
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#include "art_method-inl.h"
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#include "jit/offline_profiling_info.h"
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#include "jit/profile_saver.h"
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#include "jni.h"
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#include "method_reference.h"
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#include "mirror/class-inl.h"
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#include "oat_file_assistant.h"
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#include "oat_file_manager.h"
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#include "scoped_thread_state_change.h"
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#include "ScopedUtfChars.h"
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#include "thread.h"
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namespace art {
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namespace {
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class CreateProfilingInfoVisitor : public StackVisitor {
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public:
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explicit CreateProfilingInfoVisitor(Thread* thread, const char* method_name)
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SHARED_REQUIRES(Locks::mutator_lock_)
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: StackVisitor(thread, nullptr, StackVisitor::StackWalkKind::kIncludeInlinedFrames),
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method_name_(method_name) {}
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bool VisitFrame() SHARED_REQUIRES(Locks::mutator_lock_) {
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ArtMethod* m = GetMethod();
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std::string m_name(m->GetName());
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if (m_name.compare(method_name_) == 0) {
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ProfilingInfo::Create(Thread::Current(), m, /* retry_allocation */ true);
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method_index_ = m->GetDexMethodIndex();
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return false;
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}
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return true;
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}
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int method_index_ = -1;
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const char* const method_name_;
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};
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extern "C" JNIEXPORT jint JNICALL Java_Main_ensureProfilingInfo(JNIEnv* env,
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jclass,
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jstring method_name) {
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ScopedUtfChars chars(env, method_name);
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CHECK(chars.c_str() != nullptr);
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ScopedObjectAccess soa(Thread::Current());
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CreateProfilingInfoVisitor visitor(soa.Self(), chars.c_str());
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visitor.WalkStack();
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return visitor.method_index_;
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}
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extern "C" JNIEXPORT void JNICALL Java_Main_ensureProfileProcessing(JNIEnv*, jclass) {
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ProfileSaver::ForceProcessProfiles();
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}
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extern "C" JNIEXPORT jboolean JNICALL Java_Main_presentInProfile(
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JNIEnv* env, jclass cls, jstring filename, jint method_index) {
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ScopedUtfChars filename_chars(env, filename);
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CHECK(filename_chars.c_str() != nullptr);
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ScopedObjectAccess soa(Thread::Current());
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const DexFile* dex_file = soa.Decode<mirror::Class*>(cls)->GetDexCache()->GetDexFile();
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return ProfileSaver::HasSeenMethod(std::string(filename_chars.c_str()),
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dex_file,
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static_cast<uint16_t>(method_index));
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}
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} // namespace
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} // namespace art
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