ART: Add method name support to TI
Add support for GetMethodName.
Bug: 31684812
Test: m test-art-host
Change-Id: I55e7b6dac7e7193c3d9979ebb289b0e2849ad030
diff --git a/runtime/openjdkjvmti/ti_method.cc b/runtime/openjdkjvmti/ti_method.cc
new file mode 100644
index 0000000..8d943d9
--- /dev/null
+++ b/runtime/openjdkjvmti/ti_method.cc
@@ -0,0 +1,100 @@
+/* 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