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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "dex/dex_file.h"
#include "art_method-inl.h"
#include "dex/method_reference.h"
#include "jit/profile_saver.h"
#include "jni.h"
#include "mirror/class-inl.h"
#include "mirror/executable.h"
#include "nativehelper/ScopedUtfChars.h"
#include "oat_file_assistant.h"
#include "oat_file_manager.h"
#include "profile/profile_compilation_info.h"
#include "scoped_thread_state_change-inl.h"
#include "thread.h"
namespace art {
namespace {
extern "C" JNIEXPORT void JNICALL Java_Main_ensureProfilingInfo(JNIEnv* env,
jclass,
jobject method) {
CHECK(method != nullptr);
ScopedObjectAccess soa(env);
ObjPtr<mirror::Executable> exec = soa.Decode<mirror::Executable>(method);
ArtMethod* art_method = exec->GetArtMethod();
if (ProfilingInfo::Create(soa.Self(), art_method) == nullptr) {
LOG(ERROR) << "Failed to create profiling info for method " << art_method->PrettyMethod();
}
}
extern "C" JNIEXPORT void JNICALL Java_Main_ensureProfileProcessing(JNIEnv*, jclass) {
ProfileSaver::ForceProcessProfiles();
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isForBootImage(JNIEnv* env,
jclass,
jstring filename) {
ScopedUtfChars filename_chars(env, filename);
CHECK(filename_chars.c_str() != nullptr);
ProfileCompilationInfo info(/*for_boot_image=*/ true);
bool result = info.Load(std::string(filename_chars.c_str()), /*clear_if_invalid=*/ false);
return result ? JNI_TRUE : JNI_FALSE;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_presentInProfile(JNIEnv* env,
jclass c,
jstring filename,
jobject method) {
bool for_boot_image = Java_Main_isForBootImage(env, c, filename) == JNI_TRUE;
ScopedUtfChars filename_chars(env, filename);
CHECK(filename_chars.c_str() != nullptr);
ScopedObjectAccess soa(env);
ObjPtr<mirror::Executable> exec = soa.Decode<mirror::Executable>(method);
ArtMethod* art_method = exec->GetArtMethod();
MethodReference ref(art_method->GetDexFile(), art_method->GetDexMethodIndex());
ProfileCompilationInfo info(Runtime::Current()->GetArenaPool(), for_boot_image);
if (!info.Load(filename_chars.c_str(), /*clear_if_invalid=*/false)) {
LOG(ERROR) << "Failed to load profile from " << filename;
return JNI_FALSE;
}
const ProfileCompilationInfo::MethodHotness hotness = info.GetMethodHotness(ref);
// TODO: Why do we check `hotness.IsHot()` instead of `hotness.IsInProfile()`
// in a method named `presentInProfile()`?
return hotness.IsHot() ? JNI_TRUE : JNI_FALSE;
}
} // namespace
} // namespace art
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