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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 "methods.h"
#include <stdio.h>
#include "base/macros.h"
#include "jni.h"
#include "openjdkjvmti/jvmti.h"
#include "ScopedLocalRef.h"
#include "ti-agent/common_helper.h"
#include "ti-agent/common_load.h"
namespace art {
namespace Test910Methods {
extern "C" JNIEXPORT jobjectArray JNICALL Java_Main_getMethodName(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
char* name;
char* sig;
char* gen;
jvmtiError result = jvmti_env->GetMethodName(id, &name, &sig, &gen);
if (result != JVMTI_ERROR_NONE) {
char* err;
jvmti_env->GetErrorName(result, &err);
printf("Failure running GetMethodName: %s\n", err);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err));
return nullptr;
}
auto callback = [&](jint i) {
if (i == 0) {
return name == nullptr ? nullptr : env->NewStringUTF(name);
} else if (i == 1) {
return sig == nullptr ? nullptr : env->NewStringUTF(sig);
} else {
return gen == nullptr ? nullptr : env->NewStringUTF(gen);
}
};
jobjectArray ret = CreateObjectArray(env, 3, "java/lang/String", callback);
// Need to deallocate the strings.
if (name != nullptr) {
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(name));
}
if (sig != nullptr) {
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(sig));
}
if (gen != nullptr) {
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(gen));
}
// Also run GetMethodName with all parameter pointers null to check for segfaults.
jvmtiError result2 = jvmti_env->GetMethodName(id, nullptr, nullptr, nullptr);
if (result2 != JVMTI_ERROR_NONE) {
char* err;
jvmti_env->GetErrorName(result2, &err);
printf("Failure running GetMethodName(null, null, null): %s\n", err);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err));
return nullptr;
}
return ret;
}
extern "C" JNIEXPORT jclass JNICALL Java_Main_getMethodDeclaringClass(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jclass declaring_class;
jvmtiError result = jvmti_env->GetMethodDeclaringClass(id, &declaring_class);
if (result != JVMTI_ERROR_NONE) {
char* err;
jvmti_env->GetErrorName(result, &err);
printf("Failure running GetMethodDeclaringClass: %s\n", err);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err));
return nullptr;
}
return declaring_class;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_getMethodModifiers(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jint modifiers;
jvmtiError result = jvmti_env->GetMethodModifiers(id, &modifiers);
if (result != JVMTI_ERROR_NONE) {
char* err;
jvmti_env->GetErrorName(result, &err);
printf("Failure running GetMethodModifiers: %s\n", err);
jvmti_env->Deallocate(reinterpret_cast<unsigned char*>(err));
return 0;
}
return modifiers;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_getMaxLocals(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jint max_locals;
jvmtiError result = jvmti_env->GetMaxLocals(id, &max_locals);
if (JvmtiErrorToException(env, result)) {
return -1;
}
return max_locals;
}
extern "C" JNIEXPORT jint JNICALL Java_Main_getArgumentsSize(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jint arguments;
jvmtiError result = jvmti_env->GetArgumentsSize(id, &arguments);
if (JvmtiErrorToException(env, result)) {
return -1;
}
return arguments;
}
extern "C" JNIEXPORT jlong JNICALL Java_Main_getMethodLocationStart(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jlong start;
jlong end;
jvmtiError result = jvmti_env->GetMethodLocation(id, &start, &end);
if (JvmtiErrorToException(env, result)) {
return -1;
}
return start;
}
extern "C" JNIEXPORT jlong JNICALL Java_Main_getMethodLocationEnd(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jlong start;
jlong end;
jvmtiError result = jvmti_env->GetMethodLocation(id, &start, &end);
if (JvmtiErrorToException(env, result)) {
return -1;
}
return end;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isMethodNative(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jboolean is_native;
jvmtiError result = jvmti_env->IsMethodNative(id, &is_native);
if (JvmtiErrorToException(env, result)) {
return JNI_FALSE;
}
return is_native;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isMethodObsolete(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jboolean is_obsolete;
jvmtiError result = jvmti_env->IsMethodObsolete(id, &is_obsolete);
if (JvmtiErrorToException(env, result)) {
return JNI_FALSE;
}
return is_obsolete;
}
extern "C" JNIEXPORT jboolean JNICALL Java_Main_isMethodSynthetic(
JNIEnv* env, jclass klass ATTRIBUTE_UNUSED, jobject method) {
jmethodID id = env->FromReflectedMethod(method);
jboolean is_synthetic;
jvmtiError result = jvmti_env->IsMethodSynthetic(id, &is_synthetic);
if (JvmtiErrorToException(env, result)) {
return JNI_FALSE;
}
return is_synthetic;
}
// 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;
}
SetAllCapabilities(jvmti_env);
return 0;
}
} // namespace Test910Methods
} // namespace art
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