Mercurial > hg > truffle
annotate src/share/vm/utilities/debug.cpp @ 20468:1de115720e74
8049528: Method marked w/ @ForceInline isn't inlined with "executed < MinInliningThreshold times" message
Reviewed-by: roland, jrose
author | vlivanov |
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date | Mon, 14 Jul 2014 03:24:35 -0700 |
parents | 78bbf4d43a14 |
children | 52b4284cb496 03e6d34be1f5 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, 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 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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92 |
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93 FormatBufferResource::FormatBufferResource(const char * format, ...) |
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94 : FormatBufferBase((char*)resource_allocate_bytes(RES_BUFSZ)) { |
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95 va_list argp; |
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96 va_start(argp, format); |
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97 jio_vsnprintf(_buf, RES_BUFSZ, format, argp); |
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98 va_end(argp); |
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99 } |
0 | 100 |
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101 ATTRIBUTE_PRINTF(1, 2) |
0 | 102 void warning(const char* format, ...) { |
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103 if (PrintWarnings) { |
6759 | 104 FILE* const err = defaultStream::error_stream(); |
105 jio_fprintf(err, "%s warning: ", VM_Version::vm_name()); | |
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106 va_list ap; |
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107 va_start(ap, format); |
6759 | 108 vfprintf(err, format, ap); |
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109 va_end(ap); |
6759 | 110 fputc('\n', err); |
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111 } |
0 | 112 if (BreakAtWarning) BREAKPOINT; |
113 } | |
114 | |
115 #ifndef PRODUCT | |
116 | |
117 #define is_token_break(ch) (isspace(ch) || (ch) == ',') | |
118 | |
119 static const char* last_file_name = NULL; | |
120 static int last_line_no = -1; | |
121 | |
122 // assert/guarantee/... may happen very early during VM initialization. | |
123 // Don't rely on anything that is initialized by Threads::create_vm(). For | |
124 // example, don't use tty. | |
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125 bool error_is_suppressed(const char* file_name, int line_no) { |
0 | 126 // The following 1-element cache requires that passed-in |
127 // file names are always only constant literals. | |
128 if (file_name == last_file_name && line_no == last_line_no) return true; | |
129 | |
130 int file_name_len = (int)strlen(file_name); | |
131 char separator = os::file_separator()[0]; | |
132 const char* base_name = strrchr(file_name, separator); | |
133 if (base_name == NULL) | |
134 base_name = file_name; | |
135 | |
136 // scan the SuppressErrorAt option | |
137 const char* cp = SuppressErrorAt; | |
138 for (;;) { | |
139 const char* sfile; | |
140 int sfile_len; | |
141 int sline; | |
142 bool noisy; | |
143 while ((*cp) != '\0' && is_token_break(*cp)) cp++; | |
144 if ((*cp) == '\0') break; | |
145 sfile = cp; | |
146 while ((*cp) != '\0' && !is_token_break(*cp) && (*cp) != ':') cp++; | |
147 sfile_len = cp - sfile; | |
148 if ((*cp) == ':') cp++; | |
149 sline = 0; | |
150 while ((*cp) != '\0' && isdigit(*cp)) { | |
151 sline *= 10; | |
152 sline += (*cp) - '0'; | |
153 cp++; | |
154 } | |
155 // "file:line!" means the assert suppression is not silent | |
156 noisy = ((*cp) == '!'); | |
157 while ((*cp) != '\0' && !is_token_break(*cp)) cp++; | |
158 // match the line | |
159 if (sline != 0) { | |
160 if (sline != line_no) continue; | |
161 } | |
162 // match the file | |
163 if (sfile_len > 0) { | |
164 const char* look = file_name; | |
165 const char* look_max = file_name + file_name_len - sfile_len; | |
166 const char* foundp; | |
167 bool match = false; | |
168 while (!match | |
169 && (foundp = strchr(look, sfile[0])) != NULL | |
170 && foundp <= look_max) { | |
171 match = true; | |
172 for (int i = 1; i < sfile_len; i++) { | |
173 if (sfile[i] != foundp[i]) { | |
174 match = false; | |
175 break; | |
176 } | |
177 } | |
178 look = foundp + 1; | |
179 } | |
180 if (!match) continue; | |
181 } | |
182 // got a match! | |
183 if (noisy) { | |
184 fdStream out(defaultStream::output_fd()); | |
185 out.print_raw("[error suppressed at "); | |
186 out.print_raw(base_name); | |
187 char buf[16]; | |
188 jio_snprintf(buf, sizeof(buf), ":%d]", line_no); | |
189 out.print_raw_cr(buf); | |
190 } else { | |
191 // update 1-element cache for fast silent matches | |
192 last_file_name = file_name; | |
193 last_line_no = line_no; | |
194 } | |
195 return true; | |
196 } | |
197 | |
198 if (!is_error_reported()) { | |
199 // print a friendly hint: | |
200 fdStream out(defaultStream::output_fd()); | |
201 out.print_raw_cr("# To suppress the following error report, specify this argument"); | |
202 out.print_raw ("# after -XX: or in .hotspotrc: SuppressErrorAt="); | |
203 out.print_raw (base_name); | |
204 char buf[16]; | |
205 jio_snprintf(buf, sizeof(buf), ":%d", line_no); | |
206 out.print_raw_cr(buf); | |
207 } | |
208 return false; | |
209 } | |
210 | |
211 #undef is_token_break | |
212 | |
213 #else | |
214 | |
215 // Place-holder for non-existent suppression check: | |
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216 #define error_is_suppressed(file_name, line_no) (false) |
0 | 217 |
4006 | 218 #endif // !PRODUCT |
0 | 219 |
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220 void report_vm_error(const char* file, int line, const char* error_msg, |
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221 const char* detail_msg) |
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222 { |
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223 if (Debugging || error_is_suppressed(file, line)) return; |
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224 Thread* const thread = ThreadLocalStorage::get_thread_slow(); |
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225 VMError err(thread, file, line, error_msg, detail_msg); |
0 | 226 err.report_and_die(); |
227 } | |
228 | |
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229 void report_fatal(const char* file, int line, const char* message) |
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230 { |
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231 report_vm_error(file, line, "fatal error", message); |
0 | 232 } |
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 VMErrorType vm_err_type, const char* message) { |
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236 if (Debugging) return; |
0 | 237 |
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238 Thread* thread = ThreadLocalStorage::get_thread_slow(); |
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239 VMError(thread, file, line, size, vm_err_type, message).report_and_die(); |
0 | 240 |
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241 // The UseOSErrorReporting option in report_and_die() may allow a return |
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242 // to here. If so then we'll have to figure out how to handle it. |
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243 guarantee(false, "report_and_die() should not return here"); |
0 | 244 } |
245 | |
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246 void report_should_not_call(const char* file, int line) { |
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247 report_vm_error(file, line, "ShouldNotCall()"); |
0 | 248 } |
249 | |
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250 void report_should_not_reach_here(const char* file, int line) { |
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251 report_vm_error(file, line, "ShouldNotReachHere()"); |
0 | 252 } |
253 | |
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254 void report_unimplemented(const char* file, int line) { |
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255 report_vm_error(file, line, "Unimplemented()"); |
0 | 256 } |
257 | |
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258 void report_untested(const char* file, int line, const char* message) { |
0 | 259 #ifndef PRODUCT |
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260 warning("Untested: %s in %s: %d\n", message, file, line); |
4006 | 261 #endif // !PRODUCT |
0 | 262 } |
263 | |
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264 void report_out_of_shared_space(SharedSpaceType shared_space) { |
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265 static const char* name[] = { |
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266 "native memory for metadata", |
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267 "shared read only space", |
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268 "shared read write space", |
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269 "shared miscellaneous data space" |
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270 }; |
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271 static const char* flag[] = { |
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272 "Metaspace", |
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273 "SharedReadOnlySize", |
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274 "SharedReadWriteSize", |
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275 "SharedMiscDataSize" |
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276 }; |
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277 |
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278 warning("\nThe %s is not large enough\n" |
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279 "to preload requested classes. Use -XX:%s=\n" |
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280 "to increase the initial size of %s.\n", |
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281 name[shared_space], flag[shared_space], name[shared_space]); |
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282 exit(2); |
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283 } |
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284 |
0 | 285 void report_java_out_of_memory(const char* message) { |
286 static jint out_of_memory_reported = 0; | |
287 | |
288 // A number of threads may attempt to report OutOfMemoryError at around the | |
289 // same time. To avoid dumping the heap or executing the data collection | |
290 // commands multiple times we just do it once when the first threads reports | |
291 // the error. | |
292 if (Atomic::cmpxchg(1, &out_of_memory_reported, 0) == 0) { | |
293 // create heap dump before OnOutOfMemoryError commands are executed | |
294 if (HeapDumpOnOutOfMemoryError) { | |
295 tty->print_cr("java.lang.OutOfMemoryError: %s", message); | |
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296 HeapDumper::dump_heap_from_oome(); |
0 | 297 } |
298 | |
299 if (OnOutOfMemoryError && OnOutOfMemoryError[0]) { | |
300 VMError err(message); | |
301 err.report_java_out_of_memory(); | |
302 } | |
303 } | |
304 } | |
305 | |
306 static bool error_reported = false; | |
307 | |
308 // call this when the VM is dying--it might loosen some asserts | |
309 void set_error_reported() { | |
310 error_reported = true; | |
311 } | |
312 | |
313 bool is_error_reported() { | |
314 return error_reported; | |
315 } | |
316 | |
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317 #ifndef PRODUCT |
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318 #include <signal.h> |
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319 |
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320 void test_error_handler() { |
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321 uintx test_num = ErrorHandlerTest; |
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322 if (test_num == 0) return; |
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323 |
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324 // If asserts are disabled, use the corresponding guarantee instead. |
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325 size_t n = test_num; |
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326 NOT_DEBUG(if (n <= 2) n += 2); |
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327 |
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328 const char* const str = "hello"; |
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329 const size_t num = (size_t)os::vm_page_size(); |
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330 |
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331 const char* const eol = os::line_separator(); |
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332 const char* const msg = "this message should be truncated during formatting"; |
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333 char * const dataPtr = NULL; // bad data pointer |
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334 const void (*funcPtr)(void) = (const void(*)()) 0xF; // bad function pointer |
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335 |
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336 // Keep this in sync with test/runtime/6888954/vmerrors.sh. |
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337 switch (n) { |
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338 case 1: assert(str == NULL, "expected null"); |
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339 case 2: assert(num == 1023 && *str == 'X', |
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340 err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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341 case 3: guarantee(str == NULL, "expected null"); |
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342 case 4: guarantee(num == 1023 && *str == 'X', |
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343 err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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344 case 5: fatal("expected null"); |
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345 case 6: fatal(err_msg("num=" SIZE_FORMAT " str=\"%s\"", num, str)); |
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346 case 7: fatal(err_msg("%s%s# %s%s# %s%s# %s%s# %s%s# " |
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347 "%s%s# %s%s# %s%s# %s%s# %s%s# " |
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348 "%s%s# %s%s# %s%s# %s%s# %s", |
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349 msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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350 msg, eol, msg, eol, msg, eol, msg, eol, msg, eol, |
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351 msg, eol, msg, eol, msg, eol, msg, eol, msg)); |
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352 case 8: vm_exit_out_of_memory(num, OOM_MALLOC_ERROR, "ChunkPool::allocate"); |
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353 case 9: ShouldNotCallThis(); |
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354 case 10: ShouldNotReachHere(); |
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355 case 11: Unimplemented(); |
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356 // There's no guarantee the bad data pointer will crash us |
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357 // so "break" out to the ShouldNotReachHere(). |
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358 case 12: *dataPtr = '\0'; break; |
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359 // There's no guarantee the bad function pointer will crash us |
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360 // so "break" out to the ShouldNotReachHere(). |
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361 case 13: (*funcPtr)(); break; |
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362 |
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363 default: tty->print_cr("ERROR: %d: unexpected test_num value.", n); |
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364 } |
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365 ShouldNotReachHere(); |
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366 } |
4006 | 367 #endif // !PRODUCT |
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368 |
0 | 369 // ------ helper functions for debugging go here ------------ |
370 | |
371 // All debug entries should be wrapped with a stack allocated | |
372 // Command object. It makes sure a resource mark is set and | |
373 // flushes the logfile to prevent file sharing problems. | |
374 | |
375 class Command : public StackObj { | |
376 private: | |
377 ResourceMark rm; | |
378 ResetNoHandleMark rnhm; | |
379 HandleMark hm; | |
380 bool debug_save; | |
381 public: | |
382 static int level; | |
383 Command(const char* str) { | |
384 debug_save = Debugging; | |
385 Debugging = true; | |
386 if (level++ > 0) return; | |
387 tty->cr(); | |
388 tty->print_cr("\"Executing %s\"", str); | |
389 } | |
390 | |
4006 | 391 ~Command() { |
392 tty->flush(); | |
393 Debugging = debug_save; | |
394 level--; | |
395 } | |
0 | 396 }; |
397 | |
398 int Command::level = 0; | |
399 | |
4006 | 400 #ifndef PRODUCT |
401 | |
0 | 402 extern "C" void blob(CodeBlob* cb) { |
403 Command c("blob"); | |
404 cb->print(); | |
405 } | |
406 | |
407 | |
408 extern "C" void dump_vtable(address p) { | |
409 Command c("dump_vtable"); | |
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410 Klass* k = (Klass*)p; |
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411 InstanceKlass::cast(k)->vtable()->print(); |
0 | 412 } |
413 | |
414 | |
415 extern "C" void nm(intptr_t p) { | |
416 // Actually we look through all CodeBlobs (the nm name has been kept for backwards compatability) | |
417 Command c("nm"); | |
418 CodeBlob* cb = CodeCache::find_blob((address)p); | |
419 if (cb == NULL) { | |
420 tty->print_cr("NULL"); | |
421 } else { | |
422 cb->print(); | |
423 } | |
424 } | |
425 | |
426 | |
427 extern "C" void disnm(intptr_t p) { | |
428 Command c("disnm"); | |
429 CodeBlob* cb = CodeCache::find_blob((address) p); | |
2008 | 430 nmethod* nm = cb->as_nmethod_or_null(); |
431 if (nm) { | |
432 nm->print(); | |
433 Disassembler::decode(nm); | |
434 } else { | |
435 cb->print(); | |
436 Disassembler::decode(cb); | |
437 } | |
0 | 438 } |
439 | |
440 | |
441 extern "C" void printnm(intptr_t p) { | |
442 char buffer[256]; | |
443 sprintf(buffer, "printnm: " INTPTR_FORMAT, p); | |
444 Command c(buffer); | |
445 CodeBlob* cb = CodeCache::find_blob((address) p); | |
446 if (cb->is_nmethod()) { | |
447 nmethod* nm = (nmethod*)cb; | |
448 nm->print_nmethod(true); | |
449 } | |
450 } | |
451 | |
452 | |
453 extern "C" void universe() { | |
454 Command c("universe"); | |
455 Universe::print(); | |
456 } | |
457 | |
458 | |
459 extern "C" void verify() { | |
460 // try to run a verify on the entire system | |
461 // note: this may not be safe if we're not at a safepoint; for debugging, | |
462 // this manipulates the safepoint settings to avoid assertion failures | |
463 Command c("universe verify"); | |
464 bool safe = SafepointSynchronize::is_at_safepoint(); | |
465 if (!safe) { | |
466 tty->print_cr("warning: not at safepoint -- verify may fail"); | |
467 SafepointSynchronize::set_is_at_safepoint(); | |
468 } | |
469 // Ensure Eden top is correct before verification | |
470 Universe::heap()->prepare_for_verify(); | |
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471 Universe::verify(); |
0 | 472 if (!safe) SafepointSynchronize::set_is_not_at_safepoint(); |
473 } | |
474 | |
475 | |
476 extern "C" void pp(void* p) { | |
477 Command c("pp"); | |
478 FlagSetting fl(PrintVMMessages, true); | |
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479 FlagSetting f2(DisplayVMOutput, true); |
0 | 480 if (Universe::heap()->is_in(p)) { |
481 oop obj = oop(p); | |
482 obj->print(); | |
483 } else { | |
4006 | 484 tty->print(PTR_FORMAT, p); |
0 | 485 } |
486 } | |
487 | |
488 | |
489 // pv: print vm-printable object | |
490 extern "C" void pa(intptr_t p) { ((AllocatedObj*) p)->print(); } | |
491 extern "C" void findpc(intptr_t x); | |
492 | |
4006 | 493 #endif // !PRODUCT |
494 | |
0 | 495 extern "C" void ps() { // print stack |
4006 | 496 if (Thread::current() == NULL) return; |
0 | 497 Command c("ps"); |
498 | |
499 | |
500 // Prints the stack of the current Java thread | |
501 JavaThread* p = JavaThread::active(); | |
502 tty->print(" for thread: "); | |
503 p->print(); | |
504 tty->cr(); | |
505 | |
506 if (p->has_last_Java_frame()) { | |
507 // If the last_Java_fp is set we are in C land and | |
508 // can call the standard stack_trace function. | |
4006 | 509 #ifdef PRODUCT |
510 p->print_stack(); | |
511 } else { | |
512 tty->print_cr("Cannot find the last Java frame, printing stack disabled."); | |
513 #else // !PRODUCT | |
0 | 514 p->trace_stack(); |
515 } else { | |
516 frame f = os::current_frame(); | |
517 RegisterMap reg_map(p); | |
518 f = f.sender(®_map); | |
519 tty->print("(guessing starting frame id=%#p based on current fp)\n", f.id()); | |
520 p->trace_stack_from(vframe::new_vframe(&f, ®_map, p)); | |
521 pd_ps(f); | |
4006 | 522 #endif // PRODUCT |
0 | 523 } |
524 | |
525 } | |
526 | |
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527 extern "C" void pfl() { |
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528 // print frame layout |
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529 Command c("pfl"); |
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530 JavaThread* p = JavaThread::active(); |
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531 tty->print(" for thread: "); |
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532 p->print(); |
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533 tty->cr(); |
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534 if (p->has_last_Java_frame()) { |
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535 p->print_frame_layout(); |
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536 } |
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537 } |
0 | 538 |
4006 | 539 #ifndef PRODUCT |
540 | |
0 | 541 extern "C" void psf() { // print stack frames |
542 { | |
543 Command c("psf"); | |
544 JavaThread* p = JavaThread::active(); | |
545 tty->print(" for thread: "); | |
546 p->print(); | |
547 tty->cr(); | |
548 if (p->has_last_Java_frame()) { | |
549 p->trace_frames(); | |
550 } | |
551 } | |
552 } | |
553 | |
554 | |
555 extern "C" void threads() { | |
556 Command c("threads"); | |
557 Threads::print(false, true); | |
558 } | |
559 | |
560 | |
561 extern "C" void psd() { | |
562 Command c("psd"); | |
563 SystemDictionary::print(); | |
564 } | |
565 | |
566 | |
567 extern "C" void safepoints() { | |
568 Command c("safepoints"); | |
569 SafepointSynchronize::print_state(); | |
570 } | |
571 | |
4006 | 572 #endif // !PRODUCT |
0 | 573 |
574 extern "C" void pss() { // print all stacks | |
4006 | 575 if (Thread::current() == NULL) return; |
0 | 576 Command c("pss"); |
4006 | 577 Threads::print(true, PRODUCT_ONLY(false) NOT_PRODUCT(true)); |
0 | 578 } |
579 | |
4006 | 580 #ifndef PRODUCT |
0 | 581 |
582 extern "C" void debug() { // to set things up for compiler debugging | |
583 Command c("debug"); | |
584 WizardMode = true; | |
585 PrintVMMessages = PrintCompilation = true; | |
586 PrintInlining = PrintAssembly = true; | |
587 tty->flush(); | |
588 } | |
589 | |
590 | |
591 extern "C" void ndebug() { // undo debug() | |
592 Command c("ndebug"); | |
593 PrintCompilation = false; | |
594 PrintInlining = PrintAssembly = false; | |
595 tty->flush(); | |
596 } | |
597 | |
598 | |
599 extern "C" void flush() { | |
600 Command c("flush"); | |
601 tty->flush(); | |
602 } | |
603 | |
4944 | 604 extern "C" void events() { |
605 Command c("events"); | |
606 Events::print(); | |
607 } | |
0 | 608 |
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609 extern "C" Method* findm(intptr_t pc) { |
0 | 610 Command c("findm"); |
611 nmethod* nm = CodeCache::find_nmethod((address)pc); | |
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612 return (nm == NULL) ? (Method*)NULL : nm->method(); |
0 | 613 } |
614 | |
615 | |
616 extern "C" nmethod* findnm(intptr_t addr) { | |
617 Command c("findnm"); | |
618 return CodeCache::find_nmethod((address)addr); | |
619 } | |
620 | |
621 // Another interface that isn't ambiguous in dbx. | |
622 // Can we someday rename the other find to hsfind? | |
623 extern "C" void hsfind(intptr_t x) { | |
624 Command c("hsfind"); | |
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625 os::print_location(tty, x, false); |
0 | 626 } |
627 | |
628 | |
629 extern "C" void find(intptr_t x) { | |
630 Command c("find"); | |
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631 os::print_location(tty, x, false); |
0 | 632 } |
633 | |
634 | |
635 extern "C" void findpc(intptr_t x) { | |
636 Command c("findpc"); | |
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637 os::print_location(tty, x, true); |
0 | 638 } |
639 | |
640 | |
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641 // Need method pointer to find bcp, when not in permgen. |
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642 extern "C" void findbcp(intptr_t method, intptr_t bcp) { |
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643 Command c("findbcp"); |
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644 Method* mh = (Method*)method; |
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645 if (!mh->is_native()) { |
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646 tty->print_cr("bci_from(%p) = %d; print_codes():", |
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647 mh, mh->bci_from(address(bcp))); |
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648 mh->print_codes_on(tty); |
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649 } |
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650 } |
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651 |
0 | 652 // int versions of all methods to avoid having to type type casts in the debugger |
653 | |
654 void pp(intptr_t p) { pp((void*)p); } | |
655 void pp(oop p) { pp((void*)p); } | |
656 | |
657 void help() { | |
658 Command c("help"); | |
659 tty->print_cr("basic"); | |
660 tty->print_cr(" pp(void* p) - try to make sense of p"); | |
661 tty->print_cr(" pv(intptr_t p)- ((PrintableResourceObj*) p)->print()"); | |
662 tty->print_cr(" ps() - print current thread stack"); | |
663 tty->print_cr(" pss() - print all thread stacks"); | |
6725
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664 tty->print_cr(" pm(int pc) - print Method* given compiled PC"); |
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665 tty->print_cr(" findm(intptr_t pc) - finds Method*"); |
0 | 666 tty->print_cr(" find(intptr_t x) - finds & prints nmethod/stub/bytecode/oop based on pointer into it"); |
667 | |
668 tty->print_cr("misc."); | |
669 tty->print_cr(" flush() - flushes the log file"); | |
4944 | 670 tty->print_cr(" events() - dump events from ring buffers"); |
0 | 671 |
672 | |
673 tty->print_cr("compiler debugging"); | |
674 tty->print_cr(" debug() - to set things up for compiler debugging"); | |
675 tty->print_cr(" ndebug() - undo debug"); | |
676 } | |
677 | |
4006 | 678 #endif // !PRODUCT |