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/*
* Copyright (C) 2013 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 <iostream>
#include <pthread.h>
#include <stdio.h>
#include <vector>
#include "android-base/logging.h"
#include "jni.h"
#include "jvmti.h"
#include "scoped_local_ref.h"
#include "scoped_utf_chars.h"
// Test infrastructure
#include "jvmti_helper.h"
#include "test_env.h"
namespace art {
namespace Test904ObjectAllocation {
static std::string GetClassName(JNIEnv* jni_env, jclass cls) {
ScopedLocalRef<jclass> class_class(jni_env, jni_env->GetObjectClass(cls));
jmethodID mid = jni_env->GetMethodID(class_class.get(), "getName", "()Ljava/lang/String;");
ScopedLocalRef<jstring> str(
jni_env, reinterpret_cast<jstring>(jni_env->CallObjectMethod(cls, mid)));
ScopedUtfChars utf_chars(jni_env, str.get());
return utf_chars.c_str();
}
static void JNICALL ObjectAllocated(jvmtiEnv* ti_env ATTRIBUTE_UNUSED,
JNIEnv* jni_env,
jthread thread ATTRIBUTE_UNUSED,
jobject object,
jclass object_klass,
jlong size) {
std::string object_klass_descriptor = GetClassName(jni_env, object_klass);
ScopedLocalRef<jclass> object_klass2(jni_env, jni_env->GetObjectClass(object));
std::string object_klass_descriptor2 = GetClassName(jni_env, object_klass2.get());
printf("ObjectAllocated type %s/%s size %zu\n",
object_klass_descriptor.c_str(),
object_klass_descriptor2.c_str(),
static_cast<size_t>(size));
}
extern "C" JNIEXPORT void JNICALL Java_art_Test904_setupObjectAllocCallback(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jboolean enable) {
jvmtiEventCallbacks callbacks;
memset(&callbacks, 0, sizeof(jvmtiEventCallbacks));
callbacks.VMObjectAlloc = enable ? ObjectAllocated : nullptr;
jvmtiError ret = jvmti_env->SetEventCallbacks(&callbacks, sizeof(callbacks));
JvmtiErrorToException(env, jvmti_env, ret);
}
extern "C" JNIEXPORT void JNICALL Java_art_Test904_enableAllocationTracking(
JNIEnv* env, jclass, jthread thread, jboolean enable) {
jvmtiError ret = jvmti_env->SetEventNotificationMode(
enable ? JVMTI_ENABLE : JVMTI_DISABLE,
JVMTI_EVENT_VM_OBJECT_ALLOC,
thread);
JvmtiErrorToException(env, jvmti_env, ret);
}
} // namespace Test904ObjectAllocation
} // namespace art
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