blob: 9ceefcb183153935a7a9316f57a5d48f1027f094 [file] [log] [blame]
/*
* 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 "get_loaded_classes.h"
#include <iostream>
#include <pthread.h>
#include <stdio.h>
#include <vector>
#include "base/macros.h"
#include "jni.h"
#include "openjdkjvmti/jvmti.h"
#include "ScopedLocalRef.h"
#include "ScopedUtfChars.h"
#include "ti-agent/common_load.h"
namespace art {
namespace Test907GetLoadedClasses {
static jstring 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;");
return reinterpret_cast<jstring>(jni_env->CallObjectMethod(cls, mid));
}
extern "C" JNIEXPORT jobjectArray JNICALL Java_Main_getLoadedClasses(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED) {
jint count = -1;
jclass* classes = nullptr;
jvmtiError result = jvmti_env->GetLoadedClasses(&count, &classes);
if (result != JVMTI_ERROR_NONE) {
char* err;
jvmti_env->GetErrorName(result, &err);
printf("Failure running GetLoadedClasses: %s\n", err);
return nullptr;
}
ScopedLocalRef<jclass> obj_class(env, env->FindClass("java/lang/String"));
if (obj_class.get() == nullptr) {
return nullptr;
}
jobjectArray ret = env->NewObjectArray(count, obj_class.get(), nullptr);
if (ret == nullptr) {
return ret;
}
for (size_t i = 0; i < static_cast<size_t>(count); ++i) {
jstring class_name = GetClassName(env, classes[i]);
env->SetObjectArrayElement(ret, static_cast<jint>(i), class_name);
env->DeleteLocalRef(class_name);
}
// Need to:
// 1) Free the local references.
// 2) Deallocate.
for (size_t i = 0; i < static_cast<size_t>(count); ++i) {
env->DeleteGlobalRef(classes[i]);
}
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(classes));
return ret;
}
// Don't do anything
jint OnLoad(JavaVM* vm,
char* options ATTRIBUTE_UNUSED,
void* reserved ATTRIBUTE_UNUSED) {
if (vm->GetEnv(reinterpret_cast<void**>(&jvmti_env), JVMTI_VERSION_1_0)) {
printf("Unable to get jvmti env!\n");
return 1;
}
return 0;
}
} // namespace Test907GetLoadedClasses
} // namespace art