1 /*
2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "runtime/frame.inline.hpp"
27 #include "runtime/thread.inline.hpp"
28
29 // For Forte Analyzer AsyncGetCallTrace profiling support - thread is
30 // currently interrupted by SIGPROF
31 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
32 void* ucontext, bool isInJava) {
33
34 assert(Thread::current() == this, "caller must be current thread");
35 assert(this->is_Java_thread(), "must be JavaThread");
36
37 JavaThread* jt = (JavaThread *)this;
38
39 // If we have a last_Java_frame, then we should use it even if
40 // isInJava == true. It should be more reliable than ucontext info.
41 if (jt->has_last_Java_frame()) {
42 *fr_addr = jt->pd_last_frame();
43 return true;
44 }
45
46 // At this point, we don't have a last_Java_frame, so
47 // we try to glean some information out of the ucontext
48 // if we were running Java code when SIGPROF came in.
49 if (isInJava) {
50 ucontext_t* uc = (ucontext_t*) ucontext;
51
52 intptr_t* ret_fp;
53 intptr_t* ret_sp;
54 ExtendedPC addr = os::Linux::fetch_frame_from_ucontext(this, uc,
55 &ret_sp, &ret_fp);
56 if (addr.pc() == NULL || ret_sp == NULL ) {
|
1 /*
2 * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "precompiled.hpp"
26 #include "runtime/frame.inline.hpp"
27 #include "runtime/thread.inline.hpp"
28
29 // For Forte Analyzer AsyncGetCallTrace profiling support - thread is
30 // currently interrupted by SIGPROF
31 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
32 void* ucontext, bool isInJava) {
33
34 assert(Thread::current() == this, "caller must be current thread");
35 return pd_get_top_frame(fr_addr, ucontext, isInJava);
36 }
37
38 bool JavaThread::pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava) {
39 return pd_get_top_frame(fr_addr, ucontext, isInJava);
40 }
41
42 bool JavaThread::pd_get_top_frame(frame* fr_addr, void* ucontext, bool isInJava) {
43 assert(this->is_Java_thread(), "must be JavaThread");
44 JavaThread* jt = (JavaThread *)this;
45
46 // If we have a last_Java_frame, then we should use it even if
47 // isInJava == true. It should be more reliable than ucontext info.
48 if (jt->has_last_Java_frame()) {
49 *fr_addr = jt->pd_last_frame();
50 return true;
51 }
52
53 // At this point, we don't have a last_Java_frame, so
54 // we try to glean some information out of the ucontext
55 // if we were running Java code when SIGPROF came in.
56 if (isInJava) {
57 ucontext_t* uc = (ucontext_t*) ucontext;
58
59 intptr_t* ret_fp;
60 intptr_t* ret_sp;
61 ExtendedPC addr = os::Linux::fetch_frame_from_ucontext(this, uc,
62 &ret_sp, &ret_fp);
63 if (addr.pc() == NULL || ret_sp == NULL ) {
|