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 //
32 // NOTE: On Solaris, register windows are flushed in the signal handler
33 // except for possibly the top frame.
34 //
35 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
36 void* ucontext, bool isInJava) {
37
38 assert(Thread::current() == this, "caller must be current thread");
39 assert(this->is_Java_thread(), "must be JavaThread");
40
41 JavaThread* jt = (JavaThread *)this;
42
43 if (!isInJava) {
44 // make_walkable flushes register windows and grabs last_Java_pc
45 // which can not be done if the ucontext sp matches last_Java_sp
46 // stack walking utilities assume last_Java_pc set if marked flushed
47 jt->frame_anchor()->make_walkable(jt);
48 }
49
50 // If we have a walkable last_Java_frame, then we should use it
51 // even if isInJava == true. It should be more reliable than
52 // ucontext info.
53 if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
54 *fr_addr = jt->pd_last_frame();
55 return true;
56 }
57
58 ucontext_t* uc = (ucontext_t*) ucontext;
59
60 // At this point, we don't have a walkable last_Java_frame, so
61 // we try to glean some information out of the ucontext.
62 intptr_t* ret_sp;
63 ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc,
|
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 //
32 // NOTE: On Solaris, register windows are flushed in the signal handler
33 // except for possibly the top frame.
34 //
35 bool JavaThread::pd_get_top_frame_for_signal_handler(frame* fr_addr,
36 void* ucontext, bool isInJava) {
37
38 assert(Thread::current() == this, "caller must be current thread");
39 return pd_get_top_frame(fr_addr, ucontext, isInJava, true);
40 }
41
42 bool JavaThread::pd_get_top_frame_for_profiling(frame* fr_addr, void* ucontext, bool isInJava) {
43 // get ucontext somehow
44 return pd_get_top_frame(fr_addr, ucontext, isInJava, false);
45 }
46
47 bool JavaThread::pd_get_top_frame(frame* fr_addr,
48 void* ucontext, bool isInJava, bool makeWalkable) {
49 assert(this->is_Java_thread(), "must be JavaThread");
50
51 JavaThread* jt = (JavaThread *)this;
52
53 if (!isInJava && makeWalkable) {
54 // make_walkable flushes register windows and grabs last_Java_pc
55 // which can not be done if the ucontext sp matches last_Java_sp
56 // stack walking utilities assume last_Java_pc set if marked flushed
57 jt->frame_anchor()->make_walkable(jt);
58 }
59
60 // If we have a walkable last_Java_frame, then we should use it
61 // even if isInJava == true. It should be more reliable than
62 // ucontext info.
63 if (jt->has_last_Java_frame() && jt->frame_anchor()->walkable()) {
64 *fr_addr = jt->pd_last_frame();
65 return true;
66 }
67
68 ucontext_t* uc = (ucontext_t*) ucontext;
69
70 // At this point, we don't have a walkable last_Java_frame, so
71 // we try to glean some information out of the ucontext.
72 intptr_t* ret_sp;
73 ExtendedPC addr = os::Solaris::fetch_frame_from_ucontext(this, uc,
|