87 lines
3.5 KiB
C++
87 lines
3.5 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/dex_file.h"
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#include "art_method-inl.h"
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#include "dex/method_reference.h"
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#include "jit/profile_saver.h"
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#include "jni.h"
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#include "mirror/class-inl.h"
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#include "mirror/executable.h"
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#include "nativehelper/ScopedUtfChars.h"
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#include "oat_file_assistant.h"
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#include "oat_file_manager.h"
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#include "profile/profile_compilation_info.h"
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#include "scoped_thread_state_change-inl.h"
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#include "thread.h"
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namespace art {
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namespace {
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extern "C" JNIEXPORT void JNICALL Java_Main_ensureProfilingInfo(JNIEnv* env,
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jclass,
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jobject method) {
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CHECK(method != nullptr);
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ScopedObjectAccess soa(env);
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ObjPtr<mirror::Executable> exec = soa.Decode<mirror::Executable>(method);
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ArtMethod* art_method = exec->GetArtMethod();
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if (ProfilingInfo::Create(soa.Self(), art_method) == nullptr) {
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LOG(ERROR) << "Failed to create profiling info for method " << art_method->PrettyMethod();
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}
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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_isForBootImage(JNIEnv* env,
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jclass,
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jstring filename) {
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ScopedUtfChars filename_chars(env, filename);
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CHECK(filename_chars.c_str() != nullptr);
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ProfileCompilationInfo info(/*for_boot_image=*/ true);
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bool result = info.Load(std::string(filename_chars.c_str()), /*clear_if_invalid=*/ false);
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return result ? JNI_TRUE : JNI_FALSE;
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}
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extern "C" JNIEXPORT jboolean JNICALL Java_Main_presentInProfile(JNIEnv* env,
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jclass c,
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jstring filename,
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jobject method) {
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bool for_boot_image = Java_Main_isForBootImage(env, c, filename) == JNI_TRUE;
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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(env);
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ObjPtr<mirror::Executable> exec = soa.Decode<mirror::Executable>(method);
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ArtMethod* art_method = exec->GetArtMethod();
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MethodReference ref(art_method->GetDexFile(), art_method->GetDexMethodIndex());
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ProfileCompilationInfo info(Runtime::Current()->GetArenaPool(), for_boot_image);
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if (!info.Load(filename_chars.c_str(), /*clear_if_invalid=*/false)) {
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LOG(ERROR) << "Failed to load profile from " << filename;
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return JNI_FALSE;
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}
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const ProfileCompilationInfo::MethodHotness hotness = info.GetMethodHotness(ref);
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// TODO: Why do we check `hotness.IsHot()` instead of `hotness.IsInProfile()`
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// in a method named `presentInProfile()`?
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return hotness.IsHot() ? JNI_TRUE : JNI_FALSE;
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}
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} // namespace
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} // namespace art
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