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/* Copyright (C) 2016 The Android Open Source Project
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This file implements interfaces from the file jvmti.h. This implementation
* is licensed under the same terms as the file jvmti.h. The
* copyright and license information for the file jvmti.h follows.
*
* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "ti_method.h"
#include "art_jvmti.h"
#include "art_method-inl.h"
#include "base/enums.h"
#include "scoped_thread_state_change-inl.h"
namespace openjdkjvmti {
static jvmtiError CopyString(jvmtiEnv* env, const char* src, unsigned char** copy) {
size_t len = strlen(src) + 1;
unsigned char* buf;
jvmtiError ret = env->Allocate(len, &buf);
if (ret != ERR(NONE)) {
return ret;
}
strcpy(reinterpret_cast<char*>(buf), src);
*copy = buf;
return ret;
}
jvmtiError MethodUtil::GetMethodName(jvmtiEnv* env,
jmethodID method,
char** name_ptr,
char** signature_ptr,
char** generic_ptr) {
art::ScopedObjectAccess soa(art::Thread::Current());
art::ArtMethod* art_method = soa.DecodeMethod(method);
art_method = art_method->GetInterfaceMethodIfProxy(art::kRuntimePointerSize);
JvmtiUniquePtr name_copy;
if (name_ptr != nullptr) {
const char* method_name = art_method->GetName();
if (method_name == nullptr) {
method_name = "<error>";
}
unsigned char* tmp;
jvmtiError ret = CopyString(env, method_name, &tmp);
if (ret != ERR(NONE)) {
return ret;
}
name_copy = MakeJvmtiUniquePtr(env, tmp);
*name_ptr = reinterpret_cast<char*>(tmp);
}
JvmtiUniquePtr signature_copy;
if (signature_ptr != nullptr) {
const art::Signature sig = art_method->GetSignature();
std::string str = sig.ToString();
unsigned char* tmp;
jvmtiError ret = CopyString(env, str.c_str(), &tmp);
if (ret != ERR(NONE)) {
return ret;
}
signature_copy = MakeJvmtiUniquePtr(env, tmp);
*signature_ptr = reinterpret_cast<char*>(tmp);
}
// TODO: Support generic signature.
*generic_ptr = nullptr;
// Everything is fine, release the buffers.
name_copy.release();
signature_copy.release();
return ERR(NONE);
}
} // namespace openjdkjvmti
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