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/*
* Copyright (C) 2019 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 <atomic>
#include "jvmti.h"
// Test infrastructure
#include "jvmti_helper.h"
#include "scoped_local_ref.h"
#include "test_env.h"
namespace art {
namespace Test1964AddToDexClassLoader {
using AddToDexClassLoader = jvmtiError (*)(jvmtiEnv* env,
jobject loader,
const char* segment);
template <typename T> static void Dealloc(T* t) {
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(t));
}
template <typename T, typename... Rest> static void Dealloc(T* t, Rest... rs) {
Dealloc(t);
Dealloc(rs...);
}
static void DeallocParams(jvmtiParamInfo* params, jint n_params) {
for (jint i = 0; i < n_params; i++) {
Dealloc(params[i].name);
}
}
AddToDexClassLoader GetAddFunction(JNIEnv* env) {
// Get the extensions.
jint n_ext = 0;
jvmtiExtensionFunctionInfo* infos = nullptr;
if (JvmtiErrorToException(env, jvmti_env, jvmti_env->GetExtensionFunctions(&n_ext, &infos))) {
return nullptr;
}
AddToDexClassLoader result = nullptr;
for (jint i = 0; i < n_ext; i++) {
jvmtiExtensionFunctionInfo* cur_info = &infos[i];
if (strcmp("com.android.art.classloader.add_to_dex_class_loader", cur_info->id) ==
0) {
result = reinterpret_cast<AddToDexClassLoader>(cur_info->func);
}
// Cleanup the cur_info
DeallocParams(cur_info->params, cur_info->param_count);
Dealloc(cur_info->id, cur_info->short_description, cur_info->params, cur_info->errors);
}
// Cleanup the array.
Dealloc(infos);
return result;
}
extern "C" JNIEXPORT void JNICALL Java_Main_addToClassLoaderNative(JNIEnv* env,
jclass,
jobject loader,
jstring segment) {
AddToDexClassLoader add_func = GetAddFunction(env);
if (add_func == nullptr) {
env->ThrowNew(env->FindClass("java/lang/RuntimeError"), "Failed to find extension function");
return;
}
const char* chars = env->GetStringUTFChars(segment, nullptr);
JvmtiErrorToException(
env,
jvmti_env,
add_func(jvmti_env,
loader,
chars));
env->ReleaseStringUTFChars(segment, chars);
}
} // namespace Test1964AddToDexClassLoader
} // namespace art
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