Mercurial > hg > graal-compiler

annotate src/share/vm/prims/forte.cpp @ 10405:f2110083203d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8005849: JEP 167: Event-Based JVM Tracing Reviewed-by: acorn, coleenp, sla Contributed-by: Karen Kinnear <karen.kinnear@oracle.com>, Bengt Rutisson <bengt.rutisson@oracle.com>, Calvin Cheung <calvin.cheung@oracle.com>, Erik Gahlin <erik.gahlin@oracle.com>, Erik Helin <erik.helin@oracle.com>, Jesper Wilhelmsson <jesper.wilhelmsson@oracle.com>, Keith McGuigan <keith.mcguigan@oracle.com>, Mattias Tobiasson <mattias.tobiasson@oracle.com>, Markus Gronlund <markus.gronlund@oracle.com>, Mikael Auno <mikael.auno@oracle.com>, Nils Eliasson <nils.eliasson@oracle.com>, Nils Loodin <nils.loodin@oracle.com>, Rickard Backman <rickard.backman@oracle.com>, Staffan Larsen <staffan.larsen@oracle.com>, Stefan Karlsson <stefan.karlsson@oracle.com>, Yekaterina Kantserova <yekaterina.kantserova@oracle.com>
author sla
date Mon, 10 Jun 2013 11:30:51 +0200
parents dcb062bea05b
children ef57c43512d6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load
duke
parents:
diff changeset
4 *
a61af66fc99e Initial load
duke
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load
duke
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load
duke
parents:
diff changeset
7 * published by the Free Software Foundation.
a61af66fc99e Initial load
duke
parents:
diff changeset
8 *
a61af66fc99e Initial load
duke
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load
duke
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load
duke
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load
duke
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load
duke
parents:
diff changeset
13 * accompanied this code).
a61af66fc99e Initial load
duke
parents:
diff changeset
14 *
a61af66fc99e Initial load
duke
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load
duke
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load
duke
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load
duke
parents:
diff changeset
18 *
1552
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1489
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1489
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories
trims
parents: 1489
diff changeset
21 * questions.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
22 *
a61af66fc99e Initial load
duke
parents:
diff changeset
23 */
a61af66fc99e Initial load
duke
parents:
diff changeset
24
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
26 #include "code/debugInfoRec.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
27 #include "code/pcDesc.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
28 #include "gc_interface/collectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
29 #include "memory/space.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
30 #include "memory/universe.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
31 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
32 #include "oops/oop.inline2.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
33 #include "prims/forte.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
34 #include "runtime/thread.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
35 #include "runtime/vframe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1552
diff changeset
36 #include "runtime/vframeArray.hpp"
0
a61af66fc99e Initial load
duke
parents:
diff changeset
37
10354
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
38 // call frame copied from old .h file and renamed
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
39 typedef struct {
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
40 jint lineno; // line number in the source file
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
41 jmethodID method_id; // method executed in this frame
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
42 } ASGCT_CallFrame;
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
43
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
44 // call trace copied from old .h file and renamed
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
45 typedef struct {
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
46 JNIEnv *env_id; // Env where trace was recorded
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
47 jint num_frames; // number of frames in this trace
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
48 ASGCT_CallFrame *frames; // frames
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
49 } ASGCT_CallTrace;
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
50
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
51 // These name match the names reported by the forte quality kit
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
52 enum {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
53 ticks_no_Java_frame = 0,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
54 ticks_no_class_load = -1,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
55 ticks_GC_active = -2,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
56 ticks_unknown_not_Java = -3,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
57 ticks_not_walkable_not_Java = -4,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
58 ticks_unknown_Java = -5,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
59 ticks_not_walkable_Java = -6,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
60 ticks_unknown_state = -7,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
61 ticks_thread_exit = -8,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
62 ticks_deopt = -9,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
63 ticks_safepoint = -10
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
64 };
0
a61af66fc99e Initial load
duke
parents:
diff changeset
65
10354
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
66 #if INCLUDE_JVMTI
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
67
0
a61af66fc99e Initial load
duke
parents:
diff changeset
68 //-------------------------------------------------------
a61af66fc99e Initial load
duke
parents:
diff changeset
69
a61af66fc99e Initial load
duke
parents:
diff changeset
70 // Native interfaces for use by Forte tools.
a61af66fc99e Initial load
duke
parents:
diff changeset
71
a61af66fc99e Initial load
duke
parents:
diff changeset
72
a61af66fc99e Initial load
duke
parents:
diff changeset
73 #ifndef IA64
a61af66fc99e Initial load
duke
parents:
diff changeset
74
a61af66fc99e Initial load
duke
parents:
diff changeset
75 class vframeStreamForte : public vframeStreamCommon {
a61af66fc99e Initial load
duke
parents:
diff changeset
76 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
77 // constructor that starts with sender of frame fr (top_frame)
a61af66fc99e Initial load
duke
parents:
diff changeset
78 vframeStreamForte(JavaThread *jt, frame fr, bool stop_at_java_call_stub);
a61af66fc99e Initial load
duke
parents:
diff changeset
79 void forte_next();
a61af66fc99e Initial load
duke
parents:
diff changeset
80 };
a61af66fc99e Initial load
duke
parents:
diff changeset
81
a61af66fc99e Initial load
duke
parents:
diff changeset
82
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
83 static bool is_decipherable_compiled_frame(JavaThread* thread, frame* fr, nmethod* nm);
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
84 static bool is_decipherable_interpreted_frame(JavaThread* thread,
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
85 frame* fr,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
86 Method** method_p,
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
87 int* bci_p);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
88
a61af66fc99e Initial load
duke
parents:
diff changeset
89
a61af66fc99e Initial load
duke
parents:
diff changeset
90
a61af66fc99e Initial load
duke
parents:
diff changeset
91
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
92 vframeStreamForte::vframeStreamForte(JavaThread *jt,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
93 frame fr,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
94 bool stop_at_java_call_stub) : vframeStreamCommon(jt) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
95
a61af66fc99e Initial load
duke
parents:
diff changeset
96 _stop_at_java_call_stub = stop_at_java_call_stub;
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
97 _frame = fr;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
98
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
99 // We must always have a valid frame to start filling
0
a61af66fc99e Initial load
duke
parents:
diff changeset
100
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
101 bool filled_in = fill_from_frame();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
102
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
103 assert(filled_in, "invariant");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
104
a61af66fc99e Initial load
duke
parents:
diff changeset
105 }
a61af66fc99e Initial load
duke
parents:
diff changeset
106
a61af66fc99e Initial load
duke
parents:
diff changeset
107
a61af66fc99e Initial load
duke
parents:
diff changeset
108 // Solaris SPARC Compiler1 needs an additional check on the grandparent
a61af66fc99e Initial load
duke
parents:
diff changeset
109 // of the top_frame when the parent of the top_frame is interpreted and
a61af66fc99e Initial load
duke
parents:
diff changeset
110 // the grandparent is compiled. However, in this method we do not know
a61af66fc99e Initial load
duke
parents:
diff changeset
111 // the relationship of the current _frame relative to the top_frame so
a61af66fc99e Initial load
duke
parents:
diff changeset
112 // we implement a more broad sanity check. When the previous callee is
a61af66fc99e Initial load
duke
parents:
diff changeset
113 // interpreted and the current sender is compiled, we verify that the
a61af66fc99e Initial load
duke
parents:
diff changeset
114 // current sender is also walkable. If it is not walkable, then we mark
a61af66fc99e Initial load
duke
parents:
diff changeset
115 // the current vframeStream as at the end.
a61af66fc99e Initial load
duke
parents:
diff changeset
116 void vframeStreamForte::forte_next() {
a61af66fc99e Initial load
duke
parents:
diff changeset
117 // handle frames with inlining
a61af66fc99e Initial load
duke
parents:
diff changeset
118 if (_mode == compiled_mode &&
a61af66fc99e Initial load
duke
parents:
diff changeset
119 vframeStreamCommon::fill_in_compiled_inlined_sender()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
120 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
121 }
a61af66fc99e Initial load
duke
parents:
diff changeset
122
a61af66fc99e Initial load
duke
parents:
diff changeset
123 // handle general case
a61af66fc99e Initial load
duke
parents:
diff changeset
124
a61af66fc99e Initial load
duke
parents:
diff changeset
125 int loop_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
126 int loop_max = MaxJavaStackTraceDepth * 2;
a61af66fc99e Initial load
duke
parents:
diff changeset
127
a61af66fc99e Initial load
duke
parents:
diff changeset
128
a61af66fc99e Initial load
duke
parents:
diff changeset
129 do {
a61af66fc99e Initial load
duke
parents:
diff changeset
130
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
131 loop_count++;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
132
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
133 // By the time we get here we should never see unsafe but better
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
134 // safe then segv'd
0
a61af66fc99e Initial load
duke
parents:
diff changeset
135
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
136 if (loop_count > loop_max || !_frame.safe_for_sender(_thread)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
137 _mode = at_end_mode;
a61af66fc99e Initial load
duke
parents:
diff changeset
138 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
139 }
a61af66fc99e Initial load
duke
parents:
diff changeset
140
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
141 _frame = _frame.sender(&_reg_map);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
142
a61af66fc99e Initial load
duke
parents:
diff changeset
143 } while (!fill_from_frame());
a61af66fc99e Initial load
duke
parents:
diff changeset
144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
145
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
146 // Determine if 'fr' is a decipherable compiled frame. We are already
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
147 // assured that fr is for a java nmethod.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
148
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
149 static bool is_decipherable_compiled_frame(JavaThread* thread, frame* fr, nmethod* nm) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
150 assert(nm->is_java_method(), "invariant");
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
151
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
152 if (thread->has_last_Java_frame() && thread->last_Java_pc() == fr->pc()) {
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
153 // We're stopped at a call into the JVM so look for a PcDesc with
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
154 // the actual pc reported by the frame.
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
155 PcDesc* pc_desc = nm->pc_desc_at(fr->pc());
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
156
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
157 // Did we find a useful PcDesc?
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
158 if (pc_desc != NULL &&
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
159 pc_desc->scope_decode_offset() != DebugInformationRecorder::serialized_null) {
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
160 return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
161 }
a61af66fc99e Initial load
duke
parents:
diff changeset
162 }
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
163
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
164 // We're at some random pc in the nmethod so search for the PcDesc
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
165 // whose pc is greater than the current PC. It's done this way
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
166 // because the extra PcDescs that are recorded for improved debug
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
167 // info record the end of the region covered by the ScopeDesc
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
168 // instead of the beginning.
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
169 PcDesc* pc_desc = nm->pc_desc_near(fr->pc() + 1);
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
170
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
171 // Now do we have a useful PcDesc?
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
172 if (pc_desc == NULL ||
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
173 pc_desc->scope_decode_offset() == DebugInformationRecorder::serialized_null) {
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
174 // No debug information available for this pc
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
175 // vframeStream would explode if we try and walk the frames.
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
176 return false;
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
177 }
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
178
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
179 // This PcDesc is useful however we must adjust the frame's pc
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
180 // so that the vframeStream lookups will use this same pc
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
181 fr->set_pc(pc_desc->real_pc(nm));
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
182 return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
183 }
a61af66fc99e Initial load
duke
parents:
diff changeset
184
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
185
0
a61af66fc99e Initial load
duke
parents:
diff changeset
186 // Determine if 'fr' is a walkable interpreted frame. Returns false
a61af66fc99e Initial load
duke
parents:
diff changeset
187 // if it is not. *method_p, and *bci_p are not set when false is
a61af66fc99e Initial load
duke
parents:
diff changeset
188 // returned. *method_p is non-NULL if frame was executing a Java
a61af66fc99e Initial load
duke
parents:
diff changeset
189 // method. *bci_p is != -1 if a valid BCI in the Java method could
a61af66fc99e Initial load
duke
parents:
diff changeset
190 // be found.
a61af66fc99e Initial load
duke
parents:
diff changeset
191 // Note: this method returns true when a valid Java method is found
a61af66fc99e Initial load
duke
parents:
diff changeset
192 // even if a valid BCI cannot be found.
a61af66fc99e Initial load
duke
parents:
diff changeset
193
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
194 static bool is_decipherable_interpreted_frame(JavaThread* thread,
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
195 frame* fr,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
196 Method** method_p,
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
197 int* bci_p) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
198 assert(fr->is_interpreted_frame(), "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
199
a61af66fc99e Initial load
duke
parents:
diff changeset
200 // top frame is an interpreted frame
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
201 // check if it is walkable (i.e. valid Method* and valid bci)
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
202
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
203 // Because we may be racing a gc thread the method and/or bci
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
204 // of a valid interpreter frame may look bad causing us to
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
205 // fail the is_interpreted_frame_valid test. If the thread
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
206 // is in any of the following states we are assured that the
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
207 // frame is in fact valid and we must have hit the race.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
208
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
209 JavaThreadState state = thread->thread_state();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
210 bool known_valid = (state == _thread_in_native ||
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
211 state == _thread_in_vm ||
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
212 state == _thread_blocked );
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
213
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
214 if (known_valid || fr->is_interpreted_frame_valid(thread)) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
215
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
216 // The frame code should completely validate the frame so that
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
217 // references to Method* and bci are completely safe to access
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
218 // If they aren't the frame code should be fixed not this
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
219 // code. However since gc isn't locked out the values could be
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
220 // stale. This is a race we can never completely win since we can't
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
221 // lock out gc so do one last check after retrieving their values
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
222 // from the frame for additional safety
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
223
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
224 Method* method = fr->interpreter_frame_method();
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
225
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
226 // We've at least found a method.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
227 // NOTE: there is something to be said for the approach that
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
228 // if we don't find a valid bci then the method is not likely
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
229 // a valid method. Then again we may have caught an interpreter
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
230 // frame in the middle of construction and the bci field is
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
231 // not yet valid.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
232
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
233 *method_p = method;
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6725
diff changeset
234 if (!method->is_valid_method()) return false;
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
235
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
236 intptr_t bcx = fr->interpreter_frame_bcx();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
237
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
238 int bci = method->validate_bci_from_bcx(bcx);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
239
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
240 // note: bci is set to -1 if not a valid bci
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
241 *bci_p = bci;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
242 return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
243 }
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
244
0
a61af66fc99e Initial load
duke
parents:
diff changeset
245 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
246 }
a61af66fc99e Initial load
duke
parents:
diff changeset
247
a61af66fc99e Initial load
duke
parents:
diff changeset
248
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
249 // Determine if 'fr' can be used to find an initial Java frame.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
250 // Return false if it can not find a fully decipherable Java frame
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
251 // (in other words a frame that isn't safe to use in a vframe stream).
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
252 // Obviously if it can't even find a Java frame false will also be returned.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
253 //
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
254 // If we find a Java frame decipherable or not then by definition we have
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
255 // identified a method and that will be returned to the caller via method_p.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
256 // If we can determine a bci that is returned also. (Hmm is it possible
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
257 // to return a method and bci and still return false? )
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
258 //
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
259 // The initial Java frame we find (if any) is return via initial_frame_p.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
260 //
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
261
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
262 static bool find_initial_Java_frame(JavaThread* thread,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
263 frame* fr,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
264 frame* initial_frame_p,
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
265 Method** method_p,
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
266 int* bci_p) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
267
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
268 // It is possible that for a frame containing an nmethod
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
269 // we can capture the method but no bci. If we get no
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
270 // bci the frame isn't walkable but the method is usable.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
271 // Therefore we init the returned Method* to NULL so the
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
272 // caller can make the distinction.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
273
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
274 *method_p = NULL;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
275
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
276 // On the initial call to this method the frame we get may not be
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
277 // recognizable to us. This should only happen if we are in a JRT_LEAF
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
278 // or something called by a JRT_LEAF method.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
279
0
a61af66fc99e Initial load
duke
parents:
diff changeset
280
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
281
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
282 frame candidate = *fr;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
283
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
284 // If the starting frame we were given has no codeBlob associated with
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
285 // it see if we can find such a frame because only frames with codeBlobs
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
286 // are possible Java frames.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
287
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
288 if (fr->cb() == NULL) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
289
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
290 // See if we can find a useful frame
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
291 int loop_count;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
292 int loop_max = MaxJavaStackTraceDepth * 2;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
293 RegisterMap map(thread, false);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
294
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
295 for (loop_count = 0; loop_count < loop_max; loop_count++) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
296 if (!candidate.safe_for_sender(thread)) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
297 candidate = candidate.sender(&map);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
298 if (candidate.cb() != NULL) break;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
299 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
300 if (candidate.cb() == NULL) return false;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
301 }
a61af66fc99e Initial load
duke
parents:
diff changeset
302
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
303 // We have a frame known to be in the codeCache
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
304 // We will hopefully be able to figure out something to do with it.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
305 int loop_count;
a61af66fc99e Initial load
duke
parents:
diff changeset
306 int loop_max = MaxJavaStackTraceDepth * 2;
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
307 RegisterMap map(thread, false);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
308
a61af66fc99e Initial load
duke
parents:
diff changeset
309 for (loop_count = 0; loop_count < loop_max; loop_count++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
310
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
311 if (candidate.is_first_frame()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
312 // If initial frame is frame from StubGenerator and there is no
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
313 // previous anchor, there are no java frames associated with a method
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
314 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
315 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
316
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
317 if (candidate.is_interpreted_frame()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
318 if (is_decipherable_interpreted_frame(thread, &candidate, method_p, bci_p)) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
319 *initial_frame_p = candidate;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
320 return true;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
321 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
322
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
323 // Hopefully we got some data
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
324 return false;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
325 }
a61af66fc99e Initial load
duke
parents:
diff changeset
326
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
327 if (candidate.cb()->is_nmethod()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
328
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
329 nmethod* nm = (nmethod*) candidate.cb();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
330 *method_p = nm->method();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
331
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
332 // If the frame isn't fully decipherable then the default
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
333 // value for the bci is a signal that we don't have a bci.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
334 // If we have a decipherable frame this bci value will
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
335 // not be used.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
336
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
337 *bci_p = -1;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
338
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
339 *initial_frame_p = candidate;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
340
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
341 // Native wrapper code is trivial to decode by vframeStream
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
342
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
343 if (nm->is_native_method()) return true;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
344
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
345 // If it isn't decipherable then we have found a pc that doesn't
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
346 // have a PCDesc that can get us a bci however we did find
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
347 // a method
0
a61af66fc99e Initial load
duke
parents:
diff changeset
348
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
349 if (!is_decipherable_compiled_frame(thread, &candidate, nm)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
350 return false;
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
351 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
352
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
353 // is_decipherable_compiled_frame may modify candidate's pc
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
354 *initial_frame_p = candidate;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
355
1349
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
356 assert(nm->pc_desc_at(candidate.pc()) != NULL, "if it's decipherable then pc must be valid");
547cbe6dacc5 6936709: AsyncGetCallTrace doesn't handle inexact stack walking properly
never
parents: 196
diff changeset
357
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
358 return true;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
359 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
360
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
361 // Must be some stub frame that we don't care about
0
a61af66fc99e Initial load
duke
parents:
diff changeset
362
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
363 if (!candidate.safe_for_sender(thread)) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
364 candidate = candidate.sender(&map);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
365
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
366 // If it isn't in the code cache something is wrong
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
367 // since once we find a frame in the code cache they
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
368 // all should be there.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
369
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
370 if (candidate.cb() == NULL) return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
371
0
a61af66fc99e Initial load
duke
parents:
diff changeset
372 }
a61af66fc99e Initial load
duke
parents:
diff changeset
373
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
374 return false;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
375
0
a61af66fc99e Initial load
duke
parents:
diff changeset
376 }
a61af66fc99e Initial load
duke
parents:
diff changeset
377
a61af66fc99e Initial load
duke
parents:
diff changeset
378 static void forte_fill_call_trace_given_top(JavaThread* thd,
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
379 ASGCT_CallTrace* trace,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
380 int depth,
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
381 frame top_frame) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
382 NoHandleMark nhm;
a61af66fc99e Initial load
duke
parents:
diff changeset
383
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
384 frame initial_Java_frame;
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 3960
diff changeset
385 Method* method;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
386 int bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
387 int count;
a61af66fc99e Initial load
duke
parents:
diff changeset
388
a61af66fc99e Initial load
duke
parents:
diff changeset
389 count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
390 assert(trace->frames != NULL, "trace->frames must be non-NULL");
a61af66fc99e Initial load
duke
parents:
diff changeset
391
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
392 bool fully_decipherable = find_initial_Java_frame(thd, &top_frame, &initial_Java_frame, &method, &bci);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
393
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
394 // The frame might not be walkable but still recovered a method
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6725
diff changeset
395 // (e.g. an nmethod with no scope info for the pc)
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
396
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
397 if (method == NULL) return;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
398
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6725
diff changeset
399 if (!method->is_valid_method()) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
400 trace->num_frames = ticks_GC_active; // -2
0
a61af66fc99e Initial load
duke
parents:
diff changeset
401 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
402 }
a61af66fc99e Initial load
duke
parents:
diff changeset
403
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
404 // We got a Java frame however it isn't fully decipherable
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
405 // so it won't necessarily be safe to use it for the
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
406 // initial frame in the vframe stream.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
407
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
408 if (!fully_decipherable) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
409 // Take whatever method the top-frame decoder managed to scrape up.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
410 // We look further at the top frame only if non-safepoint
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
411 // debugging information is available.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
412 count++;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
413 trace->num_frames = count;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
414 trace->frames[0].method_id = method->find_jmethod_id_or_null();
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
415 if (!method->is_native()) {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
416 trace->frames[0].lineno = bci;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
417 } else {
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
418 trace->frames[0].lineno = -3;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
419 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
420
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
421 if (!initial_Java_frame.safe_for_sender(thd)) return;
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
422
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
423 RegisterMap map(thd, false);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
424 initial_Java_frame = initial_Java_frame.sender(&map);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
425 }
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
426
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
427 vframeStreamForte st(thd, initial_Java_frame, false);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
428
0
a61af66fc99e Initial load
duke
parents:
diff changeset
429 for (; !st.at_end() && count < depth; st.forte_next(), count++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
430 bci = st.bci();
a61af66fc99e Initial load
duke
parents:
diff changeset
431 method = st.method();
a61af66fc99e Initial load
duke
parents:
diff changeset
432
7176
59c790074993 8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents: 6725
diff changeset
433 if (!method->is_valid_method()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
434 // we throw away everything we've gathered in this sample since
a61af66fc99e Initial load
duke
parents:
diff changeset
435 // none of it is safe
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
436 trace->num_frames = ticks_GC_active; // -2
0
a61af66fc99e Initial load
duke
parents:
diff changeset
437 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
438 }
a61af66fc99e Initial load
duke
parents:
diff changeset
439
a61af66fc99e Initial load
duke
parents:
diff changeset
440 trace->frames[count].method_id = method->find_jmethod_id_or_null();
a61af66fc99e Initial load
duke
parents:
diff changeset
441 if (!method->is_native()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
442 trace->frames[count].lineno = bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
443 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
444 trace->frames[count].lineno = -3;
a61af66fc99e Initial load
duke
parents:
diff changeset
445 }
a61af66fc99e Initial load
duke
parents:
diff changeset
446 }
a61af66fc99e Initial load
duke
parents:
diff changeset
447 trace->num_frames = count;
a61af66fc99e Initial load
duke
parents:
diff changeset
448 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
449 }
a61af66fc99e Initial load
duke
parents:
diff changeset
450
a61af66fc99e Initial load
duke
parents:
diff changeset
451
a61af66fc99e Initial load
duke
parents:
diff changeset
452 // Forte Analyzer AsyncGetCallTrace() entry point. Currently supported
a61af66fc99e Initial load
duke
parents:
diff changeset
453 // on Linux X86, Solaris SPARC and Solaris X86.
a61af66fc99e Initial load
duke
parents:
diff changeset
454 //
a61af66fc99e Initial load
duke
parents:
diff changeset
455 // Async-safe version of GetCallTrace being called from a signal handler
a61af66fc99e Initial load
duke
parents:
diff changeset
456 // when a LWP gets interrupted by SIGPROF but the stack traces are filled
a61af66fc99e Initial load
duke
parents:
diff changeset
457 // with different content (see below).
a61af66fc99e Initial load
duke
parents:
diff changeset
458 //
a61af66fc99e Initial load
duke
parents:
diff changeset
459 // This function must only be called when JVM/TI
a61af66fc99e Initial load
duke
parents:
diff changeset
460 // CLASS_LOAD events have been enabled since agent startup. The enabled
a61af66fc99e Initial load
duke
parents:
diff changeset
461 // event will cause the jmethodIDs to be allocated at class load time.
a61af66fc99e Initial load
duke
parents:
diff changeset
462 // The jmethodIDs cannot be allocated in a signal handler because locks
a61af66fc99e Initial load
duke
parents:
diff changeset
463 // cannot be grabbed in a signal handler safely.
a61af66fc99e Initial load
duke
parents:
diff changeset
464 //
a61af66fc99e Initial load
duke
parents:
diff changeset
465 // void (*AsyncGetCallTrace)(ASGCT_CallTrace *trace, jint depth, void* ucontext)
a61af66fc99e Initial load
duke
parents:
diff changeset
466 //
a61af66fc99e Initial load
duke
parents:
diff changeset
467 // Called by the profiler to obtain the current method call stack trace for
a61af66fc99e Initial load
duke
parents:
diff changeset
468 // a given thread. The thread is identified by the env_id field in the
a61af66fc99e Initial load
duke
parents:
diff changeset
469 // ASGCT_CallTrace structure. The profiler agent should allocate a ASGCT_CallTrace
a61af66fc99e Initial load
duke
parents:
diff changeset
470 // structure with enough memory for the requested stack depth. The VM fills in
a61af66fc99e Initial load
duke
parents:
diff changeset
471 // the frames buffer and the num_frames field.
a61af66fc99e Initial load
duke
parents:
diff changeset
472 //
a61af66fc99e Initial load
duke
parents:
diff changeset
473 // Arguments:
a61af66fc99e Initial load
duke
parents:
diff changeset
474 //
a61af66fc99e Initial load
duke
parents:
diff changeset
475 // trace - trace data structure to be filled by the VM.
a61af66fc99e Initial load
duke
parents:
diff changeset
476 // depth - depth of the call stack trace.
a61af66fc99e Initial load
duke
parents:
diff changeset
477 // ucontext - ucontext_t of the LWP
a61af66fc99e Initial load
duke
parents:
diff changeset
478 //
a61af66fc99e Initial load
duke
parents:
diff changeset
479 // ASGCT_CallTrace:
a61af66fc99e Initial load
duke
parents:
diff changeset
480 // typedef struct {
a61af66fc99e Initial load
duke
parents:
diff changeset
481 // JNIEnv *env_id;
a61af66fc99e Initial load
duke
parents:
diff changeset
482 // jint num_frames;
a61af66fc99e Initial load
duke
parents:
diff changeset
483 // ASGCT_CallFrame *frames;
a61af66fc99e Initial load
duke
parents:
diff changeset
484 // } ASGCT_CallTrace;
a61af66fc99e Initial load
duke
parents:
diff changeset
485 //
a61af66fc99e Initial load
duke
parents:
diff changeset
486 // Fields:
a61af66fc99e Initial load
duke
parents:
diff changeset
487 // env_id - ID of thread which executed this trace.
a61af66fc99e Initial load
duke
parents:
diff changeset
488 // num_frames - number of frames in the trace.
a61af66fc99e Initial load
duke
parents:
diff changeset
489 // (< 0 indicates the frame is not walkable).
a61af66fc99e Initial load
duke
parents:
diff changeset
490 // frames - the ASGCT_CallFrames that make up this trace. Callee followed by callers.
a61af66fc99e Initial load
duke
parents:
diff changeset
491 //
a61af66fc99e Initial load
duke
parents:
diff changeset
492 // ASGCT_CallFrame:
a61af66fc99e Initial load
duke
parents:
diff changeset
493 // typedef struct {
a61af66fc99e Initial load
duke
parents:
diff changeset
494 // jint lineno;
a61af66fc99e Initial load
duke
parents:
diff changeset
495 // jmethodID method_id;
a61af66fc99e Initial load
duke
parents:
diff changeset
496 // } ASGCT_CallFrame;
a61af66fc99e Initial load
duke
parents:
diff changeset
497 //
a61af66fc99e Initial load
duke
parents:
diff changeset
498 // Fields:
a61af66fc99e Initial load
duke
parents:
diff changeset
499 // 1) For Java frame (interpreted and compiled),
a61af66fc99e Initial load
duke
parents:
diff changeset
500 // lineno - bci of the method being executed or -1 if bci is not available
a61af66fc99e Initial load
duke
parents:
diff changeset
501 // method_id - jmethodID of the method being executed
a61af66fc99e Initial load
duke
parents:
diff changeset
502 // 2) For native method
a61af66fc99e Initial load
duke
parents:
diff changeset
503 // lineno - (-3)
a61af66fc99e Initial load
duke
parents:
diff changeset
504 // method_id - jmethodID of the method being executed
a61af66fc99e Initial load
duke
parents:
diff changeset
505
a61af66fc99e Initial load
duke
parents:
diff changeset
506 extern "C" {
2191
d70fe6ab4436 6588413: Use -fvisibility=hidden for gcc compiles
coleenp
parents: 1972
diff changeset
507 JNIEXPORT
0
a61af66fc99e Initial load
duke
parents:
diff changeset
508 void AsyncGetCallTrace(ASGCT_CallTrace *trace, jint depth, void* ucontext) {
a61af66fc99e Initial load
duke
parents:
diff changeset
509 JavaThread* thread;
a61af66fc99e Initial load
duke
parents:
diff changeset
510
a61af66fc99e Initial load
duke
parents:
diff changeset
511 if (trace->env_id == NULL ||
a61af66fc99e Initial load
duke
parents:
diff changeset
512 (thread = JavaThread::thread_from_jni_environment(trace->env_id)) == NULL ||
a61af66fc99e Initial load
duke
parents:
diff changeset
513 thread->is_exiting()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
514
a61af66fc99e Initial load
duke
parents:
diff changeset
515 // bad env_id, thread has exited or thread is exiting
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
516 trace->num_frames = ticks_thread_exit; // -8
0
a61af66fc99e Initial load
duke
parents:
diff changeset
517 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
518 }
a61af66fc99e Initial load
duke
parents:
diff changeset
519
a61af66fc99e Initial load
duke
parents:
diff changeset
520 if (thread->in_deopt_handler()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
521 // thread is in the deoptimization handler so return no frames
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
522 trace->num_frames = ticks_deopt; // -9
0
a61af66fc99e Initial load
duke
parents:
diff changeset
523 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
524 }
a61af66fc99e Initial load
duke
parents:
diff changeset
525
a61af66fc99e Initial load
duke
parents:
diff changeset
526 assert(JavaThread::current() == thread,
a61af66fc99e Initial load
duke
parents:
diff changeset
527 "AsyncGetCallTrace must be called by the current interrupted thread");
a61af66fc99e Initial load
duke
parents:
diff changeset
528
a61af66fc99e Initial load
duke
parents:
diff changeset
529 if (!JvmtiExport::should_post_class_load()) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
530 trace->num_frames = ticks_no_class_load; // -1
0
a61af66fc99e Initial load
duke
parents:
diff changeset
531 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
532 }
a61af66fc99e Initial load
duke
parents:
diff changeset
533
a61af66fc99e Initial load
duke
parents:
diff changeset
534 if (Universe::heap()->is_gc_active()) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
535 trace->num_frames = ticks_GC_active; // -2
0
a61af66fc99e Initial load
duke
parents:
diff changeset
536 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
537 }
a61af66fc99e Initial load
duke
parents:
diff changeset
538
a61af66fc99e Initial load
duke
parents:
diff changeset
539 switch (thread->thread_state()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
540 case _thread_new:
a61af66fc99e Initial load
duke
parents:
diff changeset
541 case _thread_uninitialized:
a61af66fc99e Initial load
duke
parents:
diff changeset
542 case _thread_new_trans:
a61af66fc99e Initial load
duke
parents:
diff changeset
543 // We found the thread on the threads list above, but it is too
a61af66fc99e Initial load
duke
parents:
diff changeset
544 // young to be useful so return that there are no Java frames.
a61af66fc99e Initial load
duke
parents:
diff changeset
545 trace->num_frames = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
546 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
547 case _thread_in_native:
a61af66fc99e Initial load
duke
parents:
diff changeset
548 case _thread_in_native_trans:
a61af66fc99e Initial load
duke
parents:
diff changeset
549 case _thread_blocked:
a61af66fc99e Initial load
duke
parents:
diff changeset
550 case _thread_blocked_trans:
a61af66fc99e Initial load
duke
parents:
diff changeset
551 case _thread_in_vm:
a61af66fc99e Initial load
duke
parents:
diff changeset
552 case _thread_in_vm_trans:
a61af66fc99e Initial load
duke
parents:
diff changeset
553 {
a61af66fc99e Initial load
duke
parents:
diff changeset
554 frame fr;
a61af66fc99e Initial load
duke
parents:
diff changeset
555
a61af66fc99e Initial load
duke
parents:
diff changeset
556 // param isInJava == false - indicate we aren't in Java code
a61af66fc99e Initial load
duke
parents:
diff changeset
557 if (!thread->pd_get_top_frame_for_signal_handler(&fr, ucontext, false)) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
558 trace->num_frames = ticks_unknown_not_Java; // -3 unknown frame
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
559 } else {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
560 if (!thread->has_last_Java_frame()) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
561 trace->num_frames = 0; // No Java frames
0
a61af66fc99e Initial load
duke
parents:
diff changeset
562 } else {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
563 trace->num_frames = ticks_not_walkable_not_Java; // -4 non walkable frame by default
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
564 forte_fill_call_trace_given_top(thread, trace, depth, fr);
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
565
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
566 // This assert would seem to be valid but it is not.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
567 // It would be valid if we weren't possibly racing a gc
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
568 // thread. A gc thread can make a valid interpreted frame
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
569 // look invalid. It's a small window but it does happen.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
570 // The assert is left here commented out as a reminder.
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
571 // assert(trace->num_frames != ticks_not_walkable_not_Java, "should always be walkable");
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
572
0
a61af66fc99e Initial load
duke
parents:
diff changeset
573 }
a61af66fc99e Initial load
duke
parents:
diff changeset
574 }
a61af66fc99e Initial load
duke
parents:
diff changeset
575 }
a61af66fc99e Initial load
duke
parents:
diff changeset
576 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
577 case _thread_in_Java:
a61af66fc99e Initial load
duke
parents:
diff changeset
578 case _thread_in_Java_trans:
a61af66fc99e Initial load
duke
parents:
diff changeset
579 {
a61af66fc99e Initial load
duke
parents:
diff changeset
580 frame fr;
a61af66fc99e Initial load
duke
parents:
diff changeset
581
a61af66fc99e Initial load
duke
parents:
diff changeset
582 // param isInJava == true - indicate we are in Java code
a61af66fc99e Initial load
duke
parents:
diff changeset
583 if (!thread->pd_get_top_frame_for_signal_handler(&fr, ucontext, true)) {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
584 trace->num_frames = ticks_unknown_Java; // -5 unknown frame
0
a61af66fc99e Initial load
duke
parents:
diff changeset
585 } else {
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
586 trace->num_frames = ticks_not_walkable_Java; // -6, non walkable frame by default
0
a61af66fc99e Initial load
duke
parents:
diff changeset
587 forte_fill_call_trace_given_top(thread, trace, depth, fr);
a61af66fc99e Initial load
duke
parents:
diff changeset
588 }
a61af66fc99e Initial load
duke
parents:
diff changeset
589 }
a61af66fc99e Initial load
duke
parents:
diff changeset
590 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
591 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
592 // Unknown thread state
107
93b6525e3b82 6603919: Stackwalking crash on x86 -server with Sun Studio's collect -j on
sgoldman
parents: 0
diff changeset
593 trace->num_frames = ticks_unknown_state; // -7
0
a61af66fc99e Initial load
duke
parents:
diff changeset
594 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
595 }
a61af66fc99e Initial load
duke
parents:
diff changeset
596 }
a61af66fc99e Initial load
duke
parents:
diff changeset
597
a61af66fc99e Initial load
duke
parents:
diff changeset
598
a61af66fc99e Initial load
duke
parents:
diff changeset
599 #ifndef _WINDOWS
a61af66fc99e Initial load
duke
parents:
diff changeset
600 // Support for the Forte(TM) Peformance Tools collector.
a61af66fc99e Initial load
duke
parents:
diff changeset
601 //
a61af66fc99e Initial load
duke
parents:
diff changeset
602 // The method prototype is derived from libcollector.h. For more
a61af66fc99e Initial load
duke
parents:
diff changeset
603 // information, please see the libcollect man page.
a61af66fc99e Initial load
duke
parents:
diff changeset
604
a61af66fc99e Initial load
duke
parents:
diff changeset
605 // Method to let libcollector know about a dynamically loaded function.
a61af66fc99e Initial load
duke
parents:
diff changeset
606 // Because it is weakly bound, the calls become NOP's when the library
a61af66fc99e Initial load
duke
parents:
diff changeset
607 // isn't present.
3960
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
608 #ifdef __APPLE__
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
609 // XXXDARWIN: Link errors occur even when __attribute__((weak_import))
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
610 // is added
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
611 #define collector_func_load(x0,x1,x2,x3,x4,x5,x6) (0)
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
612 #else
0
a61af66fc99e Initial load
duke
parents:
diff changeset
613 void collector_func_load(char* name,
a61af66fc99e Initial load
duke
parents:
diff changeset
614 void* null_argument_1,
a61af66fc99e Initial load
duke
parents:
diff changeset
615 void* null_argument_2,
a61af66fc99e Initial load
duke
parents:
diff changeset
616 void *vaddr,
a61af66fc99e Initial load
duke
parents:
diff changeset
617 int size,
a61af66fc99e Initial load
duke
parents:
diff changeset
618 int zero_argument,
a61af66fc99e Initial load
duke
parents:
diff changeset
619 void* null_argument_3);
a61af66fc99e Initial load
duke
parents:
diff changeset
620 #pragma weak collector_func_load
a61af66fc99e Initial load
duke
parents:
diff changeset
621 #define collector_func_load(x0,x1,x2,x3,x4,x5,x6) \
a61af66fc99e Initial load
duke
parents:
diff changeset
622 ( collector_func_load ? collector_func_load(x0,x1,x2,x3,x4,x5,x6),0 : 0 )
3960
f08d439fab8c 7089790: integrate bsd-port changes
never
parents: 3899
diff changeset
623 #endif // __APPLE__
0
a61af66fc99e Initial load
duke
parents:
diff changeset
624 #endif // !_WINDOWS
a61af66fc99e Initial load
duke
parents:
diff changeset
625
a61af66fc99e Initial load
duke
parents:
diff changeset
626 } // end extern "C"
a61af66fc99e Initial load
duke
parents:
diff changeset
627 #endif // !IA64
a61af66fc99e Initial load
duke
parents:
diff changeset
628
a61af66fc99e Initial load
duke
parents:
diff changeset
629 void Forte::register_stub(const char* name, address start, address end) {
a61af66fc99e Initial load
duke
parents:
diff changeset
630 #if !defined(_WINDOWS) && !defined(IA64)
a61af66fc99e Initial load
duke
parents:
diff changeset
631 assert(pointer_delta(end, start, sizeof(jbyte)) < INT_MAX,
1489
cff162798819 6888953: some calls to function-like macros are missing semicolons
jcoomes
parents: 1349
diff changeset
632 "Code size exceeds maximum range");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
633
a61af66fc99e Initial load
duke
parents:
diff changeset
634 collector_func_load((char*)name, NULL, NULL, start,
a61af66fc99e Initial load
duke
parents:
diff changeset
635 pointer_delta(end, start, sizeof(jbyte)), 0, NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
636 #endif // !_WINDOWS && !IA64
a61af66fc99e Initial load
duke
parents:
diff changeset
637 }
10354
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
638
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
639 #else // INCLUDE_JVMTI
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
640 extern "C" {
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
641 JNIEXPORT
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
642 void AsyncGetCallTrace(ASGCT_CallTrace *trace, jint depth, void* ucontext) {
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
643 trace->num_frames = ticks_no_class_load; // -1
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
644 }
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
645 }
dcb062bea05b 8013461: There is a symbol AsyncGetCallTrace in libjvm.symbols that does not exist in minimal/libjvm.a when DEBUG_LEVEL == release
jprovino
parents: 7176
diff changeset
646 #endif // INCLUDE_JVMTI