1 /* Copyright (C) 2018 The Android Open Source Project
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3 *
4 * This file implements interfaces from the file jvmti.h. This implementation
5 * is licensed under the same terms as the file jvmti.h. The
6 * copyright and license information for the file jvmti.h follows.
7 *
8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
10 *
11 * This code is free software; you can redistribute it and/or modify it
12 * under the terms of the GNU General Public License version 2 only, as
13 * published by the Free Software Foundation. Oracle designates this
14 * particular file as subject to the "Classpath" exception as provided
15 * by Oracle in the LICENSE file that accompanied this code.
16 *
17 * This code is distributed in the hope that it will be useful, but WITHOUT
18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 * version 2 for more details (a copy is included in the LICENSE file that
21 * accompanied this code).
22 *
23 * You should have received a copy of the GNU General Public License version
24 * 2 along with this work; if not, write to the Free Software Foundation,
25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
26 *
27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
28 * or visit www.oracle.com if you need additional information or have any
29 * questions.
30 */
31
32 #include "ti_logging.h"
33
34 #include "art_jvmti.h"
35
36 #include "base/mutex.h"
37 #include "base/strlcpy.h"
38 #include "thread-current-inl.h"
39
40 namespace openjdkjvmti {
41
GetLastError(jvmtiEnv * env,char ** data)42 jvmtiError LogUtil::GetLastError(jvmtiEnv* env, char** data) {
43 if (env == nullptr || data == nullptr) {
44 return ERR(INVALID_ENVIRONMENT);
45 }
46 ArtJvmTiEnv* tienv = ArtJvmTiEnv::AsArtJvmTiEnv(env);
47 art::MutexLock mu(art::Thread::Current(), tienv->last_error_mutex_);
48 if (tienv->last_error_.empty()) {
49 return ERR(ABSENT_INFORMATION);
50 }
51 const size_t size = tienv->last_error_.size() + 1;
52 char* out;
53 jvmtiError err = tienv->Allocate(size, reinterpret_cast<unsigned char**>(&out));
54 if (err != OK) {
55 return err;
56 }
57 strlcpy(out, tienv->last_error_.c_str(), size);
58 *data = out;
59 return OK;
60 }
61
ClearLastError(jvmtiEnv * env)62 jvmtiError LogUtil::ClearLastError(jvmtiEnv* env) {
63 if (env == nullptr) {
64 return ERR(INVALID_ENVIRONMENT);
65 }
66 ArtJvmTiEnv* tienv = ArtJvmTiEnv::AsArtJvmTiEnv(env);
67 art::MutexLock mu(art::Thread::Current(), tienv->last_error_mutex_);
68 tienv->last_error_.clear();
69 return OK;
70 }
71
72 } // namespace openjdkjvmti
73