/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "source_transform.h"
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#include "jni.h"
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#include "android-base/stringprintf.h"
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#include "jvmti.h"
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#include "scoped_local_ref.h"
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// Test infrastructure
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#include "jvmti_helper.h"
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#include "test_env.h"
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namespace art {
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namespace Test983SourceTransformVerify {
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constexpr bool kSkipInitialLoad = true;
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static void Println(JNIEnv* env, const char* msg) {
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ScopedLocalRef<jclass> test_klass(env, env->FindClass("art/Test983"));
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jmethodID println_method = env->GetStaticMethodID(test_klass.get(),
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"doPrintln",
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"(Ljava/lang/String;)V");
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ScopedLocalRef<jstring> data(env, env->NewStringUTF(msg));
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env->CallStaticVoidMethod(test_klass.get(), println_method, data.get());
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}
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// The hook we are using.
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void JNICALL CheckDexFileHook(jvmtiEnv* jvmti_env ATTRIBUTE_UNUSED,
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JNIEnv* env,
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jclass class_being_redefined,
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jobject loader ATTRIBUTE_UNUSED,
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const char* name,
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jobject protection_domain ATTRIBUTE_UNUSED,
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jint class_data_len,
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const unsigned char* class_data,
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jint* new_class_data_len ATTRIBUTE_UNUSED,
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unsigned char** new_class_data ATTRIBUTE_UNUSED) {
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if (kSkipInitialLoad && class_being_redefined == nullptr) {
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// Something got loaded concurrently. Just ignore it for now. To make sure the test is
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// repeatable we only care about things that come from RetransformClasses.
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return;
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}
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Println(env, android::base::StringPrintf("Dex file hook for %s", name).c_str());
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if (IsJVM()) {
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return;
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}
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VerifyClassData(class_data_len, class_data);
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}
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// Get all capabilities except those related to retransformation.
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extern "C" JNIEXPORT void JNICALL Java_art_Test983_setupLoadHook(JNIEnv* env, jclass) {
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jvmtiEventCallbacks cb;
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memset(&cb, 0, sizeof(cb));
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cb.ClassFileLoadHook = CheckDexFileHook;
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JvmtiErrorToException(env, jvmti_env, jvmti_env->SetEventCallbacks(&cb, sizeof(cb)));
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}
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} // namespace Test983SourceTransformVerify
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} // namespace art
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