Mercurial > hg > truffle
annotate src/share/vm/utilities/debug.cpp @ 7287:76c9023ed438
Remove now useless prefix arguments for jtt unittests
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Thu, 20 Dec 2012 17:06:59 +0100 |
parents | 291ffc492eb6 |
children | 989155e2d07a |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2012, 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 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/systemDictionary.hpp" | |
27 #include "code/codeCache.hpp" | |
28 #include "code/icBuffer.hpp" | |
29 #include "code/nmethod.hpp" | |
30 #include "code/vtableStubs.hpp" | |
31 #include "compiler/compileBroker.hpp" | |
32 #include "compiler/disassembler.hpp" | |
33 #include "gc_implementation/shared/markSweep.hpp" | |
34 #include "gc_interface/collectedHeap.hpp" | |
35 #include "interpreter/bytecodeHistogram.hpp" | |
36 #include "interpreter/interpreter.hpp" | |
37 #include "memory/resourceArea.hpp" | |
38 #include "memory/universe.hpp" | |
39 #include "oops/oop.inline.hpp" | |
40 #include "prims/privilegedStack.hpp" | |
41 #include "runtime/arguments.hpp" | |
42 #include "runtime/frame.hpp" | |
43 #include "runtime/java.hpp" | |
44 #include "runtime/sharedRuntime.hpp" | |
45 #include "runtime/stubCodeGenerator.hpp" | |
46 #include "runtime/stubRoutines.hpp" | |
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47 #include "runtime/thread.inline.hpp" |
1972 | 48 #include "runtime/vframe.hpp" |
49 #include "services/heapDumper.hpp" | |
50 #include "utilities/defaultStream.hpp" | |
51 #include "utilities/events.hpp" | |
52 #include "utilities/top.hpp" | |
53 #include "utilities/vmError.hpp" | |
54 #ifdef TARGET_OS_FAMILY_linux | |
55 # include "os_linux.inline.hpp" | |
56 #endif | |
57 #ifdef TARGET_OS_FAMILY_solaris | |
58 # include "os_solaris.inline.hpp" | |
59 #endif | |
60 #ifdef TARGET_OS_FAMILY_windows | |
61 # include "os_windows.inline.hpp" | |
62 #endif | |
3960 | 63 #ifdef TARGET_OS_FAMILY_bsd |
64 # include "os_bsd.inline.hpp" | |
65 #endif | |
0 | 66 |
67 #ifndef ASSERT | |
68 # ifdef _DEBUG | |
69 // NOTE: don't turn the lines below into a comment -- if you're getting | |
70 // a compile error here, change the settings to define ASSERT | |
71 ASSERT should be defined when _DEBUG is defined. It is not intended to be used for debugging | |
72 functions that do not slow down the system too much and thus can be left in optimized code. | |
73 On the other hand, the code should not be included in a production version. | |
74 # endif // _DEBUG | |
75 #endif // ASSERT | |
76 | |
77 | |
78 #ifdef _DEBUG | |
79 # ifndef ASSERT | |
80 configuration error: ASSERT must be defined in debug version | |
81 # endif // ASSERT | |
82 #endif // _DEBUG | |
83 | |
84 | |
85 #ifdef PRODUCT | |
86 # if -defined _DEBUG || -defined ASSERT | |
87 configuration error: ASSERT et al. must not be defined in PRODUCT version | |
88 # endif | |
89 #endif // PRODUCT | |
90 | |
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91 FormatBufferResource::FormatBufferResource(const char * format, ...) |
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92 : FormatBufferBase((char*)resource_allocate_bytes(RES_BUFSZ)) { |
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93 va_list argp; |
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94 va_start(argp, format); |
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95 jio_vsnprintf(_buf, RES_BUFSZ, format, argp); |
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96 va_end(argp); |
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97 } |
0 | 98 |
99 void warning(const char* format, ...) { | |
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100 if (PrintWarnings) { |
6759 | 101 FILE* const err = defaultStream::error_stream(); |
102 jio_fprintf(err, "%s warning: ", VM_Version::vm_name()); | |
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103 va_list ap; |
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104 va_start(ap, format); |
6759 | 105 vfprintf(err, format, ap); |
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106 va_end(ap); |
6759 | 107 fputc('\n', err); |
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108 } |
0 | 109 if (BreakAtWarning) BREAKPOINT; |
110 } | |
111 | |
112 #ifndef PRODUCT | |
113 | |
114 #define is_token_break(ch) (isspace(ch) || (ch) == ',') | |
115 | |
116 static const char* last_file_name = NULL; | |
117 static int last_line_no = -1; | |
118 | |
119 // assert/guarantee/... may happen very early during VM initialization. | |
120 // Don't rely on anything that is initialized by Threads::create_vm(). For | |
121 // example, don't use tty. | |
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122 bool error_is_suppressed(const char* file_name, int line_no) { |
0 | 123 // The following 1-element cache requires that passed-in |
124 // file names are always only constant literals. | |
125 if (file_name == last_file_name && line_no == last_line_no) return true; | |
126 | |
127 int file_name_len = (int)strlen(file_name); | |
128 char separator = os::file_separator()[0]; | |
129 const char* base_name = strrchr(file_name, separator); | |
130 if (base_name == NULL) | |
131 base_name = file_name; | |
132 | |
133 // scan the SuppressErrorAt option | |
134 const char* cp = SuppressErrorAt; | |
135 for (;;) { | |
136 const char* sfile; | |
137 int sfile_len; | |
138 int sline; | |
139 bool noisy; | |
140 while ((*cp) != '\0' && is_token_break(*cp)) cp++; | |
141 if ((*cp) == '\0') break; | |
142 sfile = cp; | |
143 while ((*cp) != '\0' && !is_token_break(*cp) && (*cp) != ':') cp++; | |
144 sfile_len = cp - sfile; | |
145 if ((*cp) == ':') cp++; | |
146 sline = 0; | |
147 while ((*cp) != '\0' && isdigit(*cp)) { | |
148 sline *= 10; | |
149 sline += (*cp) - '0'; | |
150 cp++; | |
151 } | |
152 // "file:line!" means the assert suppression is not silent | |
153 noisy = ((*cp) == '!'); | |
154 while ((*cp) != '\0' && !is_token_break(*cp)) cp++; | |
155 // match the line | |
156 if (sline != 0) { | |
157 if (sline != line_no) continue; | |
158 } | |
159 // match the file | |
160 if (sfile_len > 0) { | |
161 const char* look = file_name; | |
162 const char* look_max = file_name + file_name_len - sfile_len; | |
163 const char* foundp; | |
164 bool match = false; | |
165 while (!match | |
166 && (foundp = strchr(look, sfile[0])) != NULL | |
167 && foundp <= look_max) { | |
168 match = true; | |
169 for (int i = 1; i < sfile_len; i++) { | |
170 if (sfile[i] != foundp[i]) { | |
171 match = false; | |
172 break; | |
173 } | |
174 } | |
175 look = foundp + 1; | |
176 } | |
177 if (!match) continue; | |
178 } | |
179 // got a match! | |
180 if (noisy) { | |
181 fdStream out(defaultStream::output_fd()); | |
182 out.print_raw("[error suppressed at "); | |
183 out.print_raw(base_name); | |
184 char buf[16]; | |
185 jio_snprintf(buf, sizeof(buf), ":%d]", line_no); | |
186 out.print_raw_cr(buf); | |
187 } else { | |
188 // update 1-element cache for fast silent matches | |
189 last_file_name = file_name; | |
190 last_line_no = line_no; | |
191 } | |
192 return true; | |
193 } | |
194 | |
195 if (!is_error_reported()) { | |
196 // print a friendly hint: | |
197 fdStream out(defaultStream::output_fd()); | |
198 out.print_raw_cr("# To suppress the following error report, specify this argument"); | |
199 out.print_raw ("# after -XX: or in .hotspotrc: SuppressErrorAt="); | |
200 out.print_raw (base_name); | |
201 char buf[16]; | |
202 jio_snprintf(buf, sizeof(buf), ":%d", line_no); | |
203 out.print_raw_cr(buf); | |
204 } | |
205 return false; | |
206 } | |
207 | |
208 #undef is_token_break | |
209 | |
210 #else | |
211 | |
212 // Place-holder for non-existent suppression check: | |
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213 #define error_is_suppressed(file_name, line_no) (false) |
0 | 214 |
4006 | 215 #endif // !PRODUCT |
0 | 216 |
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217 void report_vm_error(const char* file, int line, const char* error_msg, |
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218 const char* detail_msg) |
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219 { |
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220 if (Debugging || error_is_suppressed(file, line)) return; |
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221 Thread* const thread = ThreadLocalStorage::get_thread_slow(); |
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222 VMError err(thread, file, line, error_msg, detail_msg); |
0 | 223 err.report_and_die(); |
224 } | |
225 | |
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226 void report_fatal(const char* file, int line, const char* message) |
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227 { |
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228 report_vm_error(file, line, "fatal error", message); |
0 | 229 } |
230 | |
231 // Used by report_vm_out_of_memory to detect recursion. | |
232 static jint _exiting_out_of_mem = 0; | |
233 | |
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234 void report_vm_out_of_memory(const char* file, int line, size_t size, |
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235 const char* message) { |
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236 if (Debugging) return; |
0 | 237 |
238 // We try to gather additional information for the first out of memory | |
239 // error only; gathering additional data might cause an allocation and a | |
240 // recursive out_of_memory condition. | |
241 | |
242 const jint exiting = 1; | |
243 // If we succeed in changing the value, we're the first one in. | |
244 bool first_time_here = Atomic::xchg(exiting, &_exiting_out_of_mem) != exiting; | |
245 | |
246 if (first_time_here) { | |
247 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
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248 VMError(thread, file, line, size, message).report_and_die(); |
0 | 249 } |
227
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250 |
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251 // Dump core and abort |
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252 vm_abort(true); |
0 | 253 } |
254 | |
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255 void report_should_not_call(const char* file, int line) { |
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256 report_vm_error(file, line, "ShouldNotCall()"); |
0 | 257 } |
258 | |
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259 void report_should_not_reach_here(const char* file, int line) { |
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260 report_vm_error(file, line, "ShouldNotReachHere()"); |
0 | 261 } |
262 | |
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263 void report_should_not_reach_here2(const char* file, int line, const char* message) { |
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264 report_vm_error(file, line, "ShouldNotReachHere()", message); |
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265 } |
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266 |
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267 void report_unimplemented(const char* file, int line) { |
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268 report_vm_error(file, line, "Unimplemented()"); |
0 | 269 } |
270 | |
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271 void report_untested(const char* file, int line, const char* message) { |
0 | 272 #ifndef PRODUCT |
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273 warning("Untested: %s in %s: %d\n", message, file, line); |
4006 | 274 #endif // !PRODUCT |
0 | 275 } |
276 | |
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277 void report_out_of_shared_space(SharedSpaceType shared_space) { |
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278 static const char* name[] = { |
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279 "native memory for metadata", |
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280 "shared read only space", |
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281 "shared read write space", |
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282 "shared miscellaneous data space" |
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283 }; |
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284 static const char* flag[] = { |
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285 "Metaspace", |
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286 "SharedReadOnlySize", |
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287 "SharedReadWriteSize", |
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288 "SharedMiscDataSize" |
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289 }; |
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290 |
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291 warning("\nThe %s is not large enough\n" |
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292 "to preload requested classes. Use -XX:%s=\n" |
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293 "to increase the initial size of %s.\n", |
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294 name[shared_space], flag[shared_space], name[shared_space]); |
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295 exit(2); |
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296 } |
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297 |
0 | 298 void report_java_out_of_memory(const char* message) { |
299 static jint out_of_memory_reported = 0; | |
300 | |
301 // A number of threads may attempt to report OutOfMemoryError at around the | |
302 // same time. To avoid dumping the heap or executing the data collection | |
303 // commands multiple times we just do it once when the first threads reports | |
304 // the error. | |
305 if (Atomic::cmpxchg(1, &out_of_memory_reported, 0) == 0) { | |
306 // create heap dump before OnOutOfMemoryError commands are executed | |
307 if (HeapDumpOnOutOfMemoryError) { | |
308 tty->print_cr("java.lang.OutOfMemoryError: %s", message); | |
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309 HeapDumper::dump_heap_from_oome(); |
0 | 310 } |
311 | |
312 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { | |
313 VMError err(message); | |
314 err.report_java_out_of_memory(); | |
315 } | |
316 } | |
317 } | |
318 | |
319 static bool error_reported = false; | |
320 | |
321 // call this when the VM is dying--it might loosen some asserts | |
322 void set_error_reported() { | |
323 error_reported = true; | |
324 } | |
325 | |
326 bool is_error_reported() { | |
327 return error_reported; | |
328 } | |
329 | |
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330 #ifndef PRODUCT |
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331 #include <signal.h> |
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332 |
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333 void test_error_handler(size_t test_num) |
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334 { |
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335 if (test_num == 0) return; |
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336 |
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337 // If asserts are disabled, use the corresponding guarantee instead. |
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338 size_t n = test_num; |
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339 NOT_DEBUG(if (n <= 2) n += 2); |
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340 |
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341 const char* const str = "hello"; |
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342 const size_t num = (size_t)os::vm_page_size(); |
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343 |
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344 const char* const eol = os::line_separator(); |
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345 const char* const msg = "this message should be truncated during formatting"; |
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346 |
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347 // Keep this in sync with test/runtime/6888954/vmerrors.sh. |
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348 switch (n) { |
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349 case 1: assert(str == NULL, "expected null"); |
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350 case 2: assert(num == 1023 && *str == 'X', |
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351 err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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352 case 3: guarantee(str == NULL, "expected null"); |
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353 case 4: guarantee(num == 1023 && *str == 'X', |
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354 err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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355 case 5: fatal("expected null"); |
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356 case 6: fatal(err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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357 case 7: fatal(err_msg("%s%s# %s%s# %s%s# %s%s# %s%s# " |
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358 "%s%s# %s%s# %s%s# %s%s# %s%s# " |
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359 "%s%s# %s%s# %s%s# %s%s# %s", |
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360 msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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361 msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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362 msg, eol, msg, eol, msg, eol, msg, eol, msg)); |
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363 case 8: vm_exit_out_of_memory(num, "ChunkPool::allocate"); |
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364 case 9: ShouldNotCallThis(); |
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365 case 10: ShouldNotReachHere(); |
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366 case 11: Unimplemented(); |
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367 // This is last because it does not generate an hs_err* file on Windows. |
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368 case 12: os::signal_raise(SIGSEGV); |
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369 |
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370 default: ShouldNotReachHere(); |
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371 } |
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372 } |
4006 | 373 #endif // !PRODUCT |
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374 |
0 | 375 // ------ helper functions for debugging go here ------------ |
376 | |
377 // All debug entries should be wrapped with a stack allocated | |
378 // Command object. It makes sure a resource mark is set and | |
379 // flushes the logfile to prevent file sharing problems. | |
380 | |
381 class Command : public StackObj { | |
382 private: | |
383 ResourceMark rm; | |
384 ResetNoHandleMark rnhm; | |
385 HandleMark hm; | |
386 bool debug_save; | |
387 public: | |
388 static int level; | |
389 Command(const char* str) { | |
390 debug_save = Debugging; | |
391 Debugging = true; | |
392 if (level++ > 0) return; | |
393 tty->cr(); | |
394 tty->print_cr("\"Executing %s\"", str); | |
395 } | |
396 | |
4006 | 397 ~Command() { |
398 tty->flush(); | |
399 Debugging = debug_save; | |
400 level--; | |
401 } | |
0 | 402 }; |
403 | |
404 int Command::level = 0; | |
405 | |
4006 | 406 #ifndef PRODUCT |
407 | |
0 | 408 extern "C" void blob(CodeBlob* cb) { |
409 Command c("blob"); | |
410 cb->print(); | |
411 } | |
412 | |
413 | |
414 extern "C" void dump_vtable(address p) { | |
415 Command c("dump_vtable"); | |
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416 Klass* k = (Klass*)p; |
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417 InstanceKlass::cast(k)->vtable()->print(); |
0 | 418 } |
419 | |
420 | |
421 extern "C" void nm(intptr_t p) { | |
422 // Actually we look through all CodeBlobs (the nm name has been kept for backwards compatability) | |
423 Command c("nm"); | |
424 CodeBlob* cb = CodeCache::find_blob((address)p); | |
425 if (cb == NULL) { | |
426 tty->print_cr("NULL"); | |
427 } else { | |
428 cb->print(); | |
429 } | |
430 } | |
431 | |
432 | |
433 extern "C" void disnm(intptr_t p) { | |
434 Command c("disnm"); | |
435 CodeBlob* cb = CodeCache::find_blob((address) p); | |
2008 | 436 nmethod* nm = cb->as_nmethod_or_null(); |
437 if (nm) { | |
438 nm->print(); | |
439 Disassembler::decode(nm); | |
440 } else { | |
441 cb->print(); | |
442 Disassembler::decode(cb); | |
443 } | |
0 | 444 } |
445 | |
446 | |
447 extern "C" void printnm(intptr_t p) { | |
448 char buffer[256]; | |
449 sprintf(buffer, "printnm: " INTPTR_FORMAT, p); | |
450 Command c(buffer); | |
451 CodeBlob* cb = CodeCache::find_blob((address) p); | |
452 if (cb->is_nmethod()) { | |
453 nmethod* nm = (nmethod*)cb; | |
454 nm->print_nmethod(true); | |
455 } | |
456 } | |
457 | |
458 | |
459 extern "C" void universe() { | |
460 Command c("universe"); | |
461 Universe::print(); | |
462 } | |
463 | |
464 | |
465 extern "C" void verify() { | |
466 // try to run a verify on the entire system | |
467 // note: this may not be safe if we're not at a safepoint; for debugging, | |
468 // this manipulates the safepoint settings to avoid assertion failures | |
469 Command c("universe verify"); | |
470 bool safe = SafepointSynchronize::is_at_safepoint(); | |
471 if (!safe) { | |
472 tty->print_cr("warning: not at safepoint -- verify may fail"); | |
473 SafepointSynchronize::set_is_at_safepoint(); | |
474 } | |
475 // Ensure Eden top is correct before verification | |
476 Universe::heap()->prepare_for_verify(); | |
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477 Universe::verify(); |
0 | 478 if (!safe) SafepointSynchronize::set_is_not_at_safepoint(); |
479 } | |
480 | |
481 | |
482 extern "C" void pp(void* p) { | |
483 Command c("pp"); | |
484 FlagSetting fl(PrintVMMessages, true); | |
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485 FlagSetting f2(DisplayVMOutput, true); |
0 | 486 if (Universe::heap()->is_in(p)) { |
487 oop obj = oop(p); | |
488 obj->print(); | |
489 } else { | |
4006 | 490 tty->print(PTR_FORMAT, p); |
0 | 491 } |
492 } | |
493 | |
494 | |
495 // pv: print vm-printable object | |
496 extern "C" void pa(intptr_t p) { ((AllocatedObj*) p)->print(); } | |
497 extern "C" void findpc(intptr_t x); | |
498 | |
4006 | 499 #endif // !PRODUCT |
500 | |
0 | 501 extern "C" void ps() { // print stack |
4006 | 502 if (Thread::current() == NULL) return; |
0 | 503 Command c("ps"); |
504 | |
505 | |
506 // Prints the stack of the current Java thread | |
507 JavaThread* p = JavaThread::active(); | |
508 tty->print(" for thread: "); | |
509 p->print(); | |
510 tty->cr(); | |
511 | |
512 if (p->has_last_Java_frame()) { | |
513 // If the last_Java_fp is set we are in C land and | |
514 // can call the standard stack_trace function. | |
4006 | 515 #ifdef PRODUCT |
516 p->print_stack(); | |
517 } else { | |
518 tty->print_cr("Cannot find the last Java frame, printing stack disabled."); | |
519 #else // !PRODUCT | |
0 | 520 p->trace_stack(); |
521 } else { | |
522 frame f = os::current_frame(); | |
523 RegisterMap reg_map(p); | |
524 f = f.sender(®_map); | |
525 tty->print("(guessing starting frame id=%#p based on current fp)\n", f.id()); | |
526 p->trace_stack_from(vframe::new_vframe(&f, ®_map, p)); | |
527 pd_ps(f); | |
4006 | 528 #endif // PRODUCT |
0 | 529 } |
530 | |
531 } | |
532 | |
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533 extern "C" void pfl() { |
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534 // print frame layout |
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535 Command c("pfl"); |
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536 JavaThread* p = JavaThread::active(); |
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537 tty->print(" for thread: "); |
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538 p->print(); |
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539 tty->cr(); |
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540 if (p->has_last_Java_frame()) { |
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541 p->print_frame_layout(); |
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542 } |
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543 } |
0 | 544 |
4006 | 545 #ifndef PRODUCT |
546 | |
0 | 547 extern "C" void psf() { // print stack frames |
548 { | |
549 Command c("psf"); | |
550 JavaThread* p = JavaThread::active(); | |
551 tty->print(" for thread: "); | |
552 p->print(); | |
553 tty->cr(); | |
554 if (p->has_last_Java_frame()) { | |
555 p->trace_frames(); | |
556 } | |
557 } | |
558 } | |
559 | |
560 | |
561 extern "C" void threads() { | |
562 Command c("threads"); | |
563 Threads::print(false, true); | |
564 } | |
565 | |
566 | |
567 extern "C" void psd() { | |
568 Command c("psd"); | |
569 SystemDictionary::print(); | |
570 } | |
571 | |
572 | |
573 extern "C" void safepoints() { | |
574 Command c("safepoints"); | |
575 SafepointSynchronize::print_state(); | |
576 } | |
577 | |
4006 | 578 #endif // !PRODUCT |
0 | 579 |
580 extern "C" void pss() { // print all stacks | |
4006 | 581 if (Thread::current() == NULL) return; |
0 | 582 Command c("pss"); |
4006 | 583 Threads::print(true, PRODUCT_ONLY(false) NOT_PRODUCT(true)); |
0 | 584 } |
585 | |
4006 | 586 #ifndef PRODUCT |
0 | 587 |
588 extern "C" void debug() { // to set things up for compiler debugging | |
589 Command c("debug"); | |
590 WizardMode = true; | |
591 PrintVMMessages = PrintCompilation = true; | |
592 PrintInlining = PrintAssembly = true; | |
593 tty->flush(); | |
594 } | |
595 | |
596 | |
597 extern "C" void ndebug() { // undo debug() | |
598 Command c("ndebug"); | |
599 PrintCompilation = false; | |
600 PrintInlining = PrintAssembly = false; | |
601 tty->flush(); | |
602 } | |
603 | |
604 | |
605 extern "C" void flush() { | |
606 Command c("flush"); | |
607 tty->flush(); | |
608 } | |
609 | |
4944 | 610 extern "C" void events() { |
611 Command c("events"); | |
612 Events::print(); | |
613 } | |
0 | 614 |
615 // Given a heap address that was valid before the most recent GC, if | |
616 // the oop that used to contain it is still live, prints the new | |
617 // location of the oop and the address. Useful for tracking down | |
618 // certain kinds of naked oop and oop map bugs. | |
619 extern "C" void pnl(intptr_t old_heap_addr) { | |
620 // Print New Location of old heap address | |
621 Command c("pnl"); | |
622 #ifndef VALIDATE_MARK_SWEEP | |
623 tty->print_cr("Requires build with VALIDATE_MARK_SWEEP defined (debug build) and RecordMarkSweepCompaction enabled"); | |
624 #else | |
625 MarkSweep::print_new_location_of_heap_address((HeapWord*) old_heap_addr); | |
626 #endif | |
627 } | |
628 | |
629 | |
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630 extern "C" Method* findm(intptr_t pc) { |
0 | 631 Command c("findm"); |
632 nmethod* nm = CodeCache::find_nmethod((address)pc); | |
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633 return (nm == NULL) ? (Method*)NULL : nm->method(); |
0 | 634 } |
635 | |
636 | |
637 extern "C" nmethod* findnm(intptr_t addr) { | |
638 Command c("findnm"); | |
639 return CodeCache::find_nmethod((address)addr); | |
640 } | |
641 | |
642 static address same_page(address x, address y) { | |
643 intptr_t page_bits = -os::vm_page_size(); | |
644 if ((intptr_t(x) & page_bits) == (intptr_t(y) & page_bits)) { | |
645 return x; | |
646 } else if (x > y) { | |
647 return (address)(intptr_t(y) | ~page_bits) + 1; | |
648 } else { | |
649 return (address)(intptr_t(y) & page_bits); | |
650 } | |
651 } | |
652 | |
653 | |
654 // Another interface that isn't ambiguous in dbx. | |
655 // Can we someday rename the other find to hsfind? | |
656 extern "C" void hsfind(intptr_t x) { | |
657 Command c("hsfind"); | |
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658 os::print_location(tty, x, false); |
0 | 659 } |
660 | |
661 | |
662 extern "C" void find(intptr_t x) { | |
663 Command c("find"); | |
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664 os::print_location(tty, x, false); |
0 | 665 } |
666 | |
667 | |
668 extern "C" void findpc(intptr_t x) { | |
669 Command c("findpc"); | |
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670 os::print_location(tty, x, true); |
0 | 671 } |
672 | |
673 | |
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674 // Need method pointer to find bcp, when not in permgen. |
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675 extern "C" void findbcp(intptr_t method, intptr_t bcp) { |
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676 Command c("findbcp"); |
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677 Method* mh = (Method*)method; |
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678 if (!mh->is_native()) { |
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679 tty->print_cr("bci_from(%p) = %d; print_codes():", |
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680 mh, mh->bci_from(address(bcp))); |
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681 mh->print_codes_on(tty); |
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682 } |
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683 } |
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684 |
0 | 685 // int versions of all methods to avoid having to type type casts in the debugger |
686 | |
687 void pp(intptr_t p) { pp((void*)p); } | |
688 void pp(oop p) { pp((void*)p); } | |
689 | |
690 void help() { | |
691 Command c("help"); | |
692 tty->print_cr("basic"); | |
693 tty->print_cr(" pp(void* p) - try to make sense of p"); | |
694 tty->print_cr(" pv(intptr_t p)- ((PrintableResourceObj*) p)->print()"); | |
695 tty->print_cr(" ps() - print current thread stack"); | |
696 tty->print_cr(" pss() - print all thread stacks"); | |
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697 tty->print_cr(" pm(int pc) - print Method* given compiled PC"); |
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698 tty->print_cr(" findm(intptr_t pc) - finds Method*"); |
0 | 699 tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it"); |
700 | |
701 tty->print_cr("misc."); | |
702 tty->print_cr(" flush() - flushes the log file"); | |
4944 | 703 tty->print_cr(" events() - dump events from ring buffers"); |
0 | 704 |
705 | |
706 tty->print_cr("compiler debugging"); | |
707 tty->print_cr(" debug() - to set things up for compiler debugging"); | |
708 tty->print_cr(" ndebug() - undo debug"); | |
709 } | |
710 | |
711 #if 0 | |
712 | |
713 // BobV's command parser for debugging on windows when nothing else works. | |
714 | |
715 enum CommandID { | |
716 CMDID_HELP, | |
717 CMDID_QUIT, | |
718 CMDID_HSFIND, | |
719 CMDID_PSS, | |
720 CMDID_PS, | |
721 CMDID_PSF, | |
722 CMDID_FINDM, | |
723 CMDID_FINDNM, | |
724 CMDID_PP, | |
725 CMDID_BPT, | |
726 CMDID_EXIT, | |
727 CMDID_VERIFY, | |
728 CMDID_THREADS, | |
729 CMDID_ILLEGAL = 99 | |
730 }; | |
731 | |
732 struct CommandParser { | |
733 char *name; | |
734 CommandID code; | |
735 char *description; | |
736 }; | |
737 | |
738 struct CommandParser CommandList[] = { | |
739 (char *)"help", CMDID_HELP, " Dump this list", | |
740 (char *)"quit", CMDID_QUIT, " Return from this routine", | |
741 (char *)"hsfind", CMDID_HSFIND, "Perform an hsfind on an address", | |
742 (char *)"ps", CMDID_PS, " Print Current Thread Stack Trace", | |
743 (char *)"pss", CMDID_PSS, " Print All Thread Stack Trace", | |
744 (char *)"psf", CMDID_PSF, " Print All Stack Frames", | |
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745 (char *)"findm", CMDID_FINDM, " Find a Method* from a PC", |
0 | 746 (char *)"findnm", CMDID_FINDNM, "Find an nmethod from a PC", |
747 (char *)"pp", CMDID_PP, " Find out something about a pointer", | |
748 (char *)"break", CMDID_BPT, " Execute a breakpoint", | |
749 (char *)"exitvm", CMDID_EXIT, "Exit the VM", | |
750 (char *)"verify", CMDID_VERIFY, "Perform a Heap Verify", | |
751 (char *)"thread", CMDID_THREADS, "Dump Info on all Threads", | |
752 (char *)0, CMDID_ILLEGAL | |
753 }; | |
754 | |
755 | |
756 // get_debug_command() | |
757 // | |
758 // Read a command from standard input. | |
759 // This is useful when you have a debugger | |
760 // which doesn't support calling into functions. | |
761 // | |
762 void get_debug_command() | |
763 { | |
764 ssize_t count; | |
765 int i,j; | |
766 bool gotcommand; | |
767 intptr_t addr; | |
768 char buffer[256]; | |
769 nmethod *nm; | |
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770 Method* m; |
0 | 771 |
772 tty->print_cr("You have entered the diagnostic command interpreter"); | |
773 tty->print("The supported commands are:\n"); | |
774 for ( i=0; ; i++ ) { | |
775 if ( CommandList[i].code == CMDID_ILLEGAL ) | |
776 break; | |
777 tty->print_cr(" %s \n", CommandList[i].name ); | |
778 } | |
779 | |
780 while ( 1 ) { | |
781 gotcommand = false; | |
782 tty->print("Please enter a command: "); | |
783 count = scanf("%s", buffer) ; | |
784 if ( count >=0 ) { | |
785 for ( i=0; ; i++ ) { | |
786 if ( CommandList[i].code == CMDID_ILLEGAL ) { | |
787 if (!gotcommand) tty->print("Invalid command, please try again\n"); | |
788 break; | |
789 } | |
790 if ( strcmp(buffer, CommandList[i].name) == 0 ) { | |
791 gotcommand = true; | |
792 switch ( CommandList[i].code ) { | |
793 case CMDID_PS: | |
794 ps(); | |
795 break; | |
796 case CMDID_PSS: | |
797 pss(); | |
798 break; | |
799 case CMDID_PSF: | |
800 psf(); | |
801 break; | |
802 case CMDID_FINDM: | |
803 tty->print("Please enter the hex addr to pass to findm: "); | |
804 scanf("%I64X", &addr); | |
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805 m = (Method*)findm(addr); |
0 | 806 tty->print("findm(0x%I64X) returned 0x%I64X\n", addr, m); |
807 break; | |
808 case CMDID_FINDNM: | |
809 tty->print("Please enter the hex addr to pass to findnm: "); | |
810 scanf("%I64X", &addr); | |
811 nm = (nmethod*)findnm(addr); | |
812 tty->print("findnm(0x%I64X) returned 0x%I64X\n", addr, nm); | |
813 break; | |
814 case CMDID_PP: | |
815 tty->print("Please enter the hex addr to pass to pp: "); | |
816 scanf("%I64X", &addr); | |
817 pp((void*)addr); | |
818 break; | |
819 case CMDID_EXIT: | |
820 exit(0); | |
821 case CMDID_HELP: | |
822 tty->print("Here are the supported commands: "); | |
823 for ( j=0; ; j++ ) { | |
824 if ( CommandList[j].code == CMDID_ILLEGAL ) | |
825 break; | |
826 tty->print_cr(" %s -- %s\n", CommandList[j].name, | |
827 CommandList[j].description ); | |
828 } | |
829 break; | |
830 case CMDID_QUIT: | |
831 return; | |
832 break; | |
833 case CMDID_BPT: | |
834 BREAKPOINT; | |
835 break; | |
836 case CMDID_VERIFY: | |
837 verify();; | |
838 break; | |
839 case CMDID_THREADS: | |
840 threads();; | |
841 break; | |
842 case CMDID_HSFIND: | |
843 tty->print("Please enter the hex addr to pass to hsfind: "); | |
844 scanf("%I64X", &addr); | |
845 tty->print("Calling hsfind(0x%I64X)\n", addr); | |
846 hsfind(addr); | |
847 break; | |
848 default: | |
849 case CMDID_ILLEGAL: | |
850 break; | |
851 } | |
852 } | |
853 } | |
854 } | |
855 } | |
856 } | |
857 #endif | |
858 | |
4006 | 859 #endif // !PRODUCT |
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860 |
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861 #ifdef GRAAL |
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862 |
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863 DebugScopedValue::DebugScopedValue(const char* file, int line) { |
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864 _file = file; |
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865 _line = line; |
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866 Thread* thread = Thread::current(); |
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867 if (thread != NULL && thread->is_Java_thread()) { |
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868 JavaThread* javaThread = (JavaThread*) thread; |
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869 _parent = javaThread->debug_scope(); |
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870 javaThread->set_debug_scope(this); |
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871 } else { |
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872 _parent = NULL; |
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873 } |
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874 } |
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875 |
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876 DebugScopedValue::~DebugScopedValue() { |
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877 Thread* thread = Thread::current(); |
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878 if (thread != NULL && thread->is_Java_thread()) { |
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879 JavaThread* javaThread = (JavaThread*) thread; |
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880 javaThread->set_debug_scope(_parent); |
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881 _parent = NULL; |
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882 } |
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883 } |
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884 |
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885 void DebugScopedValue::print(outputStream* st) { |
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886 st->print("%s:%d: ", _file, _line); |
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887 print_on(st); |
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888 } |
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889 |
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890 void DebugScopedScalar::print_on(outputStream* st) { |
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891 st->print("int: %d, char: %c, long: %ld, hex: %p", _value, _value, _value, _value); |
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892 } |
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893 #endif |