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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <inttypes.h>
     18 #include <memory>
     19 #include <stdio.h>
     20 
     21 #include "android-base/logging.h"
     22 #include "android-base/stringprintf.h"
     23 
     24 #include "jni.h"
     25 #include "jvmti.h"
     26 #include "scoped_local_ref.h"
     27 
     28 // Test infrastructure
     29 #include "jni_binder.h"
     30 #include "jni_helper.h"
     31 #include "jvmti_helper.h"
     32 #include "test_env.h"
     33 #include "ti_macros.h"
     34 
     35 namespace art {
     36 namespace Test996ObsoleteBreakpoints {
     37 
     38 static constexpr jint kNumFrames = 10;
     39 
     40 static jmethodID GetFirstObsoleteMethod(JNIEnv* env, jvmtiEnv* jvmti_env) {
     41   jint frame_count;
     42   jvmtiFrameInfo frames[kNumFrames];
     43   if (JvmtiErrorToException(env, jvmti_env,
     44                             jvmti_env->GetStackTrace(nullptr,  // current thread
     45                                                      0,
     46                                                      kNumFrames,
     47                                                      frames,
     48                                                      &frame_count))) {
     49     return nullptr;
     50   }
     51   for (jint i = 0; i < frame_count; i++) {
     52     jboolean is_obsolete = false;
     53     if (JvmtiErrorToException(env, jvmti_env,
     54                               jvmti_env->IsMethodObsolete(frames[i].method, &is_obsolete))) {
     55       return nullptr;
     56     }
     57     if (is_obsolete) {
     58       return frames[i].method;
     59     }
     60   }
     61   ScopedLocalRef<jclass> rt_exception(env, env->FindClass("java/lang/RuntimeException"));
     62   env->ThrowNew(rt_exception.get(), "Unable to find obsolete method!");
     63   return nullptr;
     64 }
     65 
     66 extern "C" JNIEXPORT void JNICALL Java_art_Test996_setBreakpointOnObsoleteMethod(
     67     JNIEnv* env, jclass k ATTRIBUTE_UNUSED, jlong loc) {
     68   jmethodID method = GetFirstObsoleteMethod(env, jvmti_env);
     69   if (method == nullptr) {
     70     return;
     71   }
     72   JvmtiErrorToException(env, jvmti_env, jvmti_env->SetBreakpoint(method, loc));
     73 }
     74 
     75 }  // namespace Test996ObsoleteBreakpoints
     76 }  // namespace art
     77