Mercurial > hg > truffle
annotate src/share/vm/prims/jvmtiTrace.cpp @ 1615:ff38d05ea86f
6956958: assert(is_clean() || is_call_to_compiled() || is_call_to_interpreted() || is_optimized() || is_megam
Reviewed-by: kvn
author | never |
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date | Fri, 18 Jun 2010 16:51:54 -0700 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_jvmtiTrace.cpp.incl" | |
27 | |
28 // | |
29 // class JvmtiTrace | |
30 // | |
31 // Support for JVMTI tracing code | |
32 // | |
33 // ------------ | |
34 // Usage: | |
35 // -XX:TraceJVMTI=DESC,DESC,DESC | |
36 // | |
37 // DESC is DOMAIN ACTION KIND | |
38 // | |
39 // DOMAIN is function name | |
40 // event name | |
41 // "all" (all functions and events) | |
42 // "func" (all functions except boring) | |
43 // "allfunc" (all functions) | |
44 // "event" (all events) | |
45 // "ec" (event controller) | |
46 // | |
47 // ACTION is "+" (add) | |
48 // "-" (remove) | |
49 // | |
50 // KIND is | |
51 // for func | |
52 // "i" (input params) | |
53 // "e" (error returns) | |
54 // "o" (output) | |
55 // for event | |
56 // "t" (event triggered aka posted) | |
57 // "s" (event sent) | |
58 // | |
59 // Example: | |
60 // -XX:TraceJVMTI=ec+,GetCallerFrame+ie,Breakpoint+s | |
61 | |
62 #ifdef JVMTI_TRACE | |
63 | |
64 bool JvmtiTrace::_initialized = false; | |
65 bool JvmtiTrace::_on = false; | |
66 bool JvmtiTrace::_trace_event_controller = false; | |
67 | |
68 void JvmtiTrace::initialize() { | |
69 if (_initialized) { | |
70 return; | |
71 } | |
72 SafeResourceMark rm; | |
73 | |
74 const char *very_end; | |
75 const char *curr; | |
370
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76 if (TraceJVMTI != NULL) { |
0 | 77 curr = TraceJVMTI; |
78 } else { | |
79 curr = ""; // hack in fixed tracing here | |
80 } | |
81 very_end = curr + strlen(curr); | |
82 while (curr < very_end) { | |
83 const char *curr_end = strchr(curr, ','); | |
84 if (curr_end == NULL) { | |
85 curr_end = very_end; | |
86 } | |
87 const char *op_pos = strchr(curr, '+'); | |
88 const char *minus_pos = strchr(curr, '-'); | |
89 if (minus_pos != NULL && (minus_pos < op_pos || op_pos == NULL)) { | |
90 op_pos = minus_pos; | |
91 } | |
92 char op; | |
93 const char *flags = op_pos + 1; | |
94 const char *flags_end = curr_end; | |
95 if (op_pos == NULL || op_pos > curr_end) { | |
96 flags = "ies"; | |
97 flags_end = flags + strlen(flags); | |
98 op_pos = curr_end; | |
99 op = '+'; | |
100 } else { | |
101 op = *op_pos; | |
102 } | |
103 jbyte bits = 0; | |
104 for (; flags < flags_end; ++flags) { | |
105 switch (*flags) { | |
106 case 'i': | |
107 bits |= SHOW_IN; | |
108 break; | |
109 case 'I': | |
110 bits |= SHOW_IN_DETAIL; | |
111 break; | |
112 case 'e': | |
113 bits |= SHOW_ERROR; | |
114 break; | |
115 case 'o': | |
116 bits |= SHOW_OUT; | |
117 break; | |
118 case 'O': | |
119 bits |= SHOW_OUT_DETAIL; | |
120 break; | |
121 case 't': | |
122 bits |= SHOW_EVENT_TRIGGER; | |
123 break; | |
124 case 's': | |
125 bits |= SHOW_EVENT_SENT; | |
126 break; | |
127 default: | |
128 tty->print_cr("Invalid trace flag '%c'", *flags); | |
129 break; | |
130 } | |
131 } | |
132 const int FUNC = 1; | |
133 const int EXCLUDE = 2; | |
134 const int ALL_FUNC = 4; | |
135 const int EVENT = 8; | |
136 const int ALL_EVENT = 16; | |
137 int domain = 0; | |
138 size_t len = op_pos - curr; | |
139 if (op_pos == curr) { | |
140 domain = ALL_FUNC | FUNC | ALL_EVENT | EVENT | EXCLUDE; | |
141 } else if (len==3 && strncmp(curr, "all", 3)==0) { | |
142 domain = ALL_FUNC | FUNC | ALL_EVENT | EVENT; | |
143 } else if (len==7 && strncmp(curr, "allfunc", 7)==0) { | |
144 domain = ALL_FUNC | FUNC; | |
145 } else if (len==4 && strncmp(curr, "func", 4)==0) { | |
146 domain = ALL_FUNC | FUNC | EXCLUDE; | |
147 } else if (len==8 && strncmp(curr, "allevent", 8)==0) { | |
148 domain = ALL_EVENT | EVENT; | |
149 } else if (len==5 && strncmp(curr, "event", 5)==0) { | |
150 domain = ALL_EVENT | EVENT; | |
151 } else if (len==2 && strncmp(curr, "ec", 2)==0) { | |
152 _trace_event_controller = true; | |
153 tty->print_cr("JVMTI Tracing the event controller"); | |
154 } else { | |
155 domain = FUNC | EVENT; // go searching | |
156 } | |
157 | |
158 int exclude_index = 0; | |
159 if (domain & FUNC) { | |
160 if (domain & ALL_FUNC) { | |
161 if (domain & EXCLUDE) { | |
162 tty->print("JVMTI Tracing all significant functions"); | |
163 } else { | |
164 tty->print_cr("JVMTI Tracing all functions"); | |
165 } | |
166 } | |
167 for (int i = 0; i <= _max_function_index; ++i) { | |
168 if (domain & EXCLUDE && i == _exclude_functions[exclude_index]) { | |
169 ++exclude_index; | |
170 } else { | |
171 bool do_op = false; | |
172 if (domain & ALL_FUNC) { | |
173 do_op = true; | |
174 } else { | |
175 const char *fname = function_name(i); | |
176 if (fname != NULL) { | |
177 size_t fnlen = strlen(fname); | |
178 if (len==fnlen && strncmp(curr, fname, fnlen)==0) { | |
179 tty->print_cr("JVMTI Tracing the function: %s", fname); | |
180 do_op = true; | |
181 } | |
182 } | |
183 } | |
184 if (do_op) { | |
185 if (op == '+') { | |
186 _trace_flags[i] |= bits; | |
187 } else { | |
188 _trace_flags[i] &= ~bits; | |
189 } | |
190 _on = true; | |
191 } | |
192 } | |
193 } | |
194 } | |
195 if (domain & EVENT) { | |
196 if (domain & ALL_EVENT) { | |
197 tty->print_cr("JVMTI Tracing all events"); | |
198 } | |
199 for (int i = 0; i <= _max_event_index; ++i) { | |
200 bool do_op = false; | |
201 if (domain & ALL_EVENT) { | |
202 do_op = true; | |
203 } else { | |
204 const char *ename = event_name(i); | |
205 if (ename != NULL) { | |
206 size_t evtlen = strlen(ename); | |
207 if (len==evtlen && strncmp(curr, ename, evtlen)==0) { | |
208 tty->print_cr("JVMTI Tracing the event: %s", ename); | |
209 do_op = true; | |
210 } | |
211 } | |
212 } | |
213 if (do_op) { | |
214 if (op == '+') { | |
215 _event_trace_flags[i] |= bits; | |
216 } else { | |
217 _event_trace_flags[i] &= ~bits; | |
218 } | |
219 _on = true; | |
220 } | |
221 } | |
222 } | |
223 if (!_on && (domain & (FUNC|EVENT))) { | |
224 tty->print_cr("JVMTI Trace domain not found"); | |
225 } | |
226 curr = curr_end + 1; | |
227 } | |
228 _initialized = true; | |
229 } | |
230 | |
231 | |
232 void JvmtiTrace::shutdown() { | |
233 int i; | |
234 _on = false; | |
235 _trace_event_controller = false; | |
236 for (i = 0; i <= _max_function_index; ++i) { | |
237 _trace_flags[i] = 0; | |
238 } | |
239 for (i = 0; i <= _max_event_index; ++i) { | |
240 _event_trace_flags[i] = 0; | |
241 } | |
242 } | |
243 | |
244 | |
245 const char* JvmtiTrace::enum_name(const char** names, const jint* values, jint value) { | |
246 for (int index = 0; names[index] != 0; ++index) { | |
247 if (values[index] == value) { | |
248 return names[index]; | |
249 } | |
250 } | |
251 return "*INVALID-ENUM-VALUE*"; | |
252 } | |
253 | |
254 | |
255 // return a valid string no matter what state the thread is in | |
256 const char *JvmtiTrace::safe_get_thread_name(Thread *thread) { | |
257 if (thread == NULL) { | |
258 return "NULL"; | |
259 } | |
260 if (!thread->is_Java_thread()) { | |
261 return thread->name(); | |
262 } | |
263 JavaThread *java_thread = (JavaThread *)thread; | |
264 oop threadObj = java_thread->threadObj(); | |
265 if (threadObj == NULL) { | |
266 return "NULL"; | |
267 } | |
268 typeArrayOop name = java_lang_Thread::name(threadObj); | |
269 if (name == NULL) { | |
270 return "<NOT FILLED IN>"; | |
271 } | |
272 return UNICODE::as_utf8((jchar*) name->base(T_CHAR), name->length()); | |
273 } | |
274 | |
275 | |
276 // return the name of the current thread | |
277 const char *JvmtiTrace::safe_get_current_thread_name() { | |
278 if (JvmtiEnv::is_vm_live()) { | |
279 return JvmtiTrace::safe_get_thread_name(Thread::current()); | |
280 } else { | |
281 return "VM not live"; | |
282 } | |
283 } | |
284 | |
285 // return a valid string no matter what the state of k_mirror | |
286 const char * JvmtiTrace::get_class_name(oop k_mirror) { | |
287 if (java_lang_Class::is_primitive(k_mirror)) { | |
288 return "primitive"; | |
289 } | |
290 klassOop k_oop = java_lang_Class::as_klassOop(k_mirror); | |
291 if (k_oop == NULL) { | |
292 return "INVALID"; | |
293 } | |
294 return Klass::cast(k_oop)->external_name(); | |
295 } | |
296 | |
297 #endif /*JVMTI_TRACE */ |