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/*
* Copyright (C) 2015 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 "jni.h"
#include "base/enums.h"
#include "base/logging.h"
#include "dex_file-inl.h"
#include "jit/jit.h"
#include "jit/jit_code_cache.h"
#include "mirror/class-inl.h"
#include "nth_caller_visitor.h"
#include "oat_quick_method_header.h"
#include "runtime.h"
#include "scoped_thread_state_change.h"
#include "ScopedUtfChars.h"
#include "stack.h"
#include "thread-inl.h"
namespace art {
// public static native boolean hasOatFile();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_hasOatFile(JNIEnv* env, jclass cls) {
ScopedObjectAccess soa(env);
mirror::Class* klass = soa.Decode<mirror::Class*>(cls);
const DexFile& dex_file = klass->GetDexFile();
const OatFile::OatDexFile* oat_dex_file = dex_file.GetOatDexFile();
return (oat_dex_file != nullptr) ? JNI_TRUE : JNI_FALSE;
}
// public static native boolean runtimeIsSoftFail();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_runtimeIsSoftFail(JNIEnv* env ATTRIBUTE_UNUSED,
jclass cls ATTRIBUTE_UNUSED) {
return Runtime::Current()->IsVerificationSoftFail() ? JNI_TRUE : JNI_FALSE;
}
// public static native boolean isDex2OatEnabled();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isDex2OatEnabled(JNIEnv* env ATTRIBUTE_UNUSED,
jclass cls ATTRIBUTE_UNUSED) {
return Runtime::Current()->IsDex2OatEnabled();
}
// public static native boolean hasImage();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_hasImage(JNIEnv* env ATTRIBUTE_UNUSED,
jclass cls ATTRIBUTE_UNUSED) {
return Runtime::Current()->GetHeap()->HasBootImageSpace();
}
// public static native boolean isImageDex2OatEnabled();
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isImageDex2OatEnabled(JNIEnv* env ATTRIBUTE_UNUSED,
jclass cls ATTRIBUTE_UNUSED) {
return Runtime::Current()->IsImageDex2OatEnabled();
}
// public static native boolean compiledWithOptimizing();
// Did we use the optimizing compiler to compile this?
extern "C" JNIEXPORT jboolean JNICALL Java_Main_compiledWithOptimizing(JNIEnv* env, jclass cls) {
ScopedObjectAccess soa(env);
mirror::Class* klass = soa.Decode<mirror::Class*>(cls);
const DexFile& dex_file = klass->GetDexFile();
const OatFile::OatDexFile* oat_dex_file = dex_file.GetOatDexFile();
if (oat_dex_file == nullptr) {
// Could be JIT, which also uses optimizing, but conservatively say no.
return JNI_FALSE;
}
const OatFile* oat_file = oat_dex_file->GetOatFile();
CHECK(oat_file != nullptr);
const char* cmd_line = oat_file->GetOatHeader().GetStoreValueByKey(OatHeader::kDex2OatCmdLineKey);
CHECK(cmd_line != nullptr); // Huh? This should not happen.
// Check the backend.
constexpr const char* kCompilerBackend = "--compiler-backend=";
const char* backend = strstr(cmd_line, kCompilerBackend);
if (backend != nullptr) {
// If it's set, make sure it's optimizing.
backend += strlen(kCompilerBackend);
if (strncmp(backend, "Optimizing", strlen("Optimizing")) != 0) {
return JNI_FALSE;
}
}
// Check the filter.
constexpr const char* kCompilerFilter = "--compiler-filter=";
const char* filter = strstr(cmd_line, kCompilerFilter);
if (filter != nullptr) {
// If it's set, make sure it's not interpret-only|verify-none|verify-at-runtime.
// Note: The space filter might have an impact on the test, but ignore that for now.
filter += strlen(kCompilerFilter);
constexpr const char* kInterpretOnly = "interpret-only";
constexpr const char* kVerifyNone = "verify-none";
constexpr const char* kVerifyAtRuntime = "verify-at-runtime";
if (strncmp(filter, kInterpretOnly, strlen(kInterpretOnly)) == 0 ||
strncmp(filter, kVerifyNone, strlen(kVerifyNone)) == 0 ||
strncmp(filter, kVerifyAtRuntime, strlen(kVerifyAtRuntime)) == 0) {
return JNI_FALSE;
}
}
return JNI_TRUE;
}
extern "C" JNIEXPORT void JNICALL Java_Main_ensureJitCompiled(JNIEnv* env,
jclass,
jclass cls,
jstring method_name) {
jit::Jit* jit = Runtime::Current()->GetJit();
if (jit == nullptr) {
return;
}
ScopedObjectAccess soa(Thread::Current());
ScopedUtfChars chars(env, method_name);
CHECK(chars.c_str() != nullptr);
mirror::Class* klass = soa.Decode<mirror::Class*>(cls);
ArtMethod* method = klass->FindDeclaredDirectMethodByName(chars.c_str(), kRuntimePointerSize);
jit::JitCodeCache* code_cache = jit->GetCodeCache();
OatQuickMethodHeader* header = nullptr;
// Make sure there is a profiling info, required by the compiler.
ProfilingInfo::Create(soa.Self(), method, /* retry_allocation */ true);
while (true) {
header = OatQuickMethodHeader::FromEntryPoint(method->GetEntryPointFromQuickCompiledCode());
if (code_cache->ContainsPc(header->GetCode())) {
break;
} else {
// Sleep to yield to the compiler thread.
usleep(1000);
// Will either ensure it's compiled or do the compilation itself.
jit->CompileMethod(method, soa.Self(), /* osr */ false);
}
}
}
} // namespace art
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