Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/nmethod.cpp @ 7005:45029b3ac59f
fixed bug in the resetting of static call stubs that caused infinite, safepoint free loops in non-product builds of the VM
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 22 Nov 2012 23:36:04 +0100 |
parents | bf2ea3ed3bce |
children | 7d815d842ee0 |
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 "code/codeCache.hpp" | |
27 #include "code/compiledIC.hpp" | |
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28 #include "code/dependencies.hpp" |
1972 | 29 #include "code/nmethod.hpp" |
30 #include "code/scopeDesc.hpp" | |
31 #include "compiler/abstractCompiler.hpp" | |
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32 #include "compiler/compileBroker.hpp" |
1972 | 33 #include "compiler/compileLog.hpp" |
34 #include "compiler/compilerOracle.hpp" | |
35 #include "compiler/disassembler.hpp" | |
36 #include "interpreter/bytecode.hpp" | |
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37 #include "oops/methodData.hpp" |
1972 | 38 #include "prims/jvmtiRedefineClassesTrace.hpp" |
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39 #include "prims/jvmtiImpl.hpp" |
1972 | 40 #include "runtime/sharedRuntime.hpp" |
41 #include "runtime/sweeper.hpp" | |
42 #include "utilities/dtrace.hpp" | |
43 #include "utilities/events.hpp" | |
44 #include "utilities/xmlstream.hpp" | |
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45 #include "utilities/debug.hpp" |
1972 | 46 #ifdef SHARK |
47 #include "shark/sharkCompiler.hpp" | |
48 #endif | |
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49 #ifdef GRAAL |
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50 #include "graal/graalJavaAccess.hpp" |
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51 #endif |
0 | 52 |
53 #ifdef DTRACE_ENABLED | |
54 | |
55 // Only bother with this argument setup if dtrace is available | |
56 | |
4006 | 57 #ifndef USDT2 |
0 | 58 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
59 const char*, int, const char*, int, const char*, int, void*, size_t); | |
60 | |
61 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
62 char*, int, char*, int, char*, int); | |
63 | |
64 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
65 { \ | |
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66 Method* m = (method); \ |
0 | 67 if (m != NULL) { \ |
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68 Symbol* klass_name = m->klass_name(); \ |
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69 Symbol* name = m->name(); \ |
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70 Symbol* signature = m->signature(); \ |
0 | 71 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
72 klass_name->bytes(), klass_name->utf8_length(), \ | |
73 name->bytes(), name->utf8_length(), \ | |
74 signature->bytes(), signature->utf8_length()); \ | |
75 } \ | |
76 } | |
4006 | 77 #else /* USDT2 */ |
78 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
79 { \ | |
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80 Method* m = (method); \ |
4006 | 81 if (m != NULL) { \ |
82 Symbol* klass_name = m->klass_name(); \ | |
83 Symbol* name = m->name(); \ | |
84 Symbol* signature = m->signature(); \ | |
85 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
86 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
87 (char *) name->bytes(), name->utf8_length(), \ | |
88 (char *) signature->bytes(), signature->utf8_length()); \ | |
89 } \ | |
90 } | |
91 #endif /* USDT2 */ | |
0 | 92 |
93 #else // ndef DTRACE_ENABLED | |
94 | |
95 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
96 | |
97 #endif | |
98 | |
99 bool nmethod::is_compiled_by_c1() const { | |
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100 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
0 | 101 if (is_native_method()) return false; |
102 return compiler()->is_c1(); | |
103 } | |
104 bool nmethod::is_compiled_by_c2() const { | |
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105 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
0 | 106 if (is_native_method()) return false; |
107 return compiler()->is_c2(); | |
108 } | |
1692 | 109 bool nmethod::is_compiled_by_shark() const { |
110 if (is_native_method()) return false; | |
111 assert(compiler() != NULL, "must be"); | |
112 return compiler()->is_shark(); | |
113 } | |
0 | 114 |
115 | |
116 | |
117 //--------------------------------------------------------------------------------- | |
118 // NMethod statistics | |
119 // They are printed under various flags, including: | |
120 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
121 // (In the latter two cases, they like other stats are printed to the log only.) | |
122 | |
123 // These variables are put into one block to reduce relocations | |
124 // and make it simpler to print from the debugger. | |
125 static | |
126 struct nmethod_stats_struct { | |
127 int nmethod_count; | |
128 int total_size; | |
129 int relocation_size; | |
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130 int consts_size; |
1748 | 131 int insts_size; |
0 | 132 int stub_size; |
133 int scopes_data_size; | |
134 int scopes_pcs_size; | |
135 int dependencies_size; | |
136 int handler_table_size; | |
137 int nul_chk_table_size; | |
138 int oops_size; | |
139 | |
140 void note_nmethod(nmethod* nm) { | |
141 nmethod_count += 1; | |
142 total_size += nm->size(); | |
143 relocation_size += nm->relocation_size(); | |
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144 consts_size += nm->consts_size(); |
1748 | 145 insts_size += nm->insts_size(); |
0 | 146 stub_size += nm->stub_size(); |
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147 oops_size += nm->oops_size(); |
0 | 148 scopes_data_size += nm->scopes_data_size(); |
149 scopes_pcs_size += nm->scopes_pcs_size(); | |
150 dependencies_size += nm->dependencies_size(); | |
151 handler_table_size += nm->handler_table_size(); | |
152 nul_chk_table_size += nm->nul_chk_table_size(); | |
153 } | |
154 void print_nmethod_stats() { | |
155 if (nmethod_count == 0) return; | |
156 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
157 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
158 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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159 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
1748 | 160 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
0 | 161 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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162 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
0 | 163 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
164 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
165 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
166 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
167 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
168 } | |
169 | |
170 int native_nmethod_count; | |
171 int native_total_size; | |
172 int native_relocation_size; | |
1748 | 173 int native_insts_size; |
0 | 174 int native_oops_size; |
175 void note_native_nmethod(nmethod* nm) { | |
176 native_nmethod_count += 1; | |
177 native_total_size += nm->size(); | |
178 native_relocation_size += nm->relocation_size(); | |
1748 | 179 native_insts_size += nm->insts_size(); |
0 | 180 native_oops_size += nm->oops_size(); |
181 } | |
182 void print_native_nmethod_stats() { | |
183 if (native_nmethod_count == 0) return; | |
184 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
185 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
186 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
1748 | 187 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
0 | 188 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
189 } | |
190 | |
191 int pc_desc_resets; // number of resets (= number of caches) | |
192 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
193 int pc_desc_approx; // number of those which have approximate true | |
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194 int pc_desc_repeats; // number of _pc_descs[0] hits |
0 | 195 int pc_desc_hits; // number of LRU cache hits |
196 int pc_desc_tests; // total number of PcDesc examinations | |
197 int pc_desc_searches; // total number of quasi-binary search steps | |
198 int pc_desc_adds; // number of LUR cache insertions | |
199 | |
200 void print_pc_stats() { | |
201 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
202 pc_desc_queries, | |
203 (double)(pc_desc_tests + pc_desc_searches) | |
204 / pc_desc_queries); | |
205 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
206 pc_desc_resets, | |
207 pc_desc_queries, pc_desc_approx, | |
208 pc_desc_repeats, pc_desc_hits, | |
209 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
210 } | |
211 } nmethod_stats; | |
212 | |
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213 |
0 | 214 //--------------------------------------------------------------------------------- |
215 | |
216 | |
217 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
218 assert(pc != NULL, "Must be non null"); | |
219 assert(exception.not_null(), "Must be non null"); | |
220 assert(handler != NULL, "Must be non null"); | |
221 | |
222 _count = 0; | |
223 _exception_type = exception->klass(); | |
224 _next = NULL; | |
225 | |
226 add_address_and_handler(pc,handler); | |
227 } | |
228 | |
229 | |
230 address ExceptionCache::match(Handle exception, address pc) { | |
231 assert(pc != NULL,"Must be non null"); | |
232 assert(exception.not_null(),"Must be non null"); | |
233 if (exception->klass() == exception_type()) { | |
234 return (test_address(pc)); | |
235 } | |
236 | |
237 return NULL; | |
238 } | |
239 | |
240 | |
241 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
242 assert(exception.not_null(),"Must be non null"); | |
243 if (exception->klass() == exception_type() && count() < cache_size) { | |
244 return true; | |
245 } | |
246 return false; | |
247 } | |
248 | |
249 | |
250 address ExceptionCache::test_address(address addr) { | |
251 for (int i=0; i<count(); i++) { | |
252 if (pc_at(i) == addr) { | |
253 return handler_at(i); | |
254 } | |
255 } | |
256 return NULL; | |
257 } | |
258 | |
259 | |
260 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
261 if (test_address(addr) == handler) return true; | |
262 if (count() < cache_size) { | |
263 set_pc_at(count(),addr); | |
264 set_handler_at(count(), handler); | |
265 increment_count(); | |
266 return true; | |
267 } | |
268 return false; | |
269 } | |
270 | |
271 | |
272 // private method for handling exception cache | |
273 // These methods are private, and used to manipulate the exception cache | |
274 // directly. | |
275 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
276 ExceptionCache* ec = exception_cache(); | |
277 while (ec != NULL) { | |
278 if (ec->match_exception_with_space(exception)) { | |
279 return ec; | |
280 } | |
281 ec = ec->next(); | |
282 } | |
283 return NULL; | |
284 } | |
285 | |
286 | |
287 //----------------------------------------------------------------------------- | |
288 | |
289 | |
290 // Helper used by both find_pc_desc methods. | |
291 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
292 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
293 if (!approximate) | |
294 return pc->pc_offset() == pc_offset; | |
295 else | |
296 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
297 } | |
298 | |
299 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
300 if (initial_pc_desc == NULL) { | |
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301 _pc_descs[0] = NULL; // native method; no PcDescs at all |
0 | 302 return; |
303 } | |
304 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
305 // reset the cache by filling it with benign (non-null) values | |
306 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
307 for (int i = 0; i < cache_size; i++) | |
308 _pc_descs[i] = initial_pc_desc; | |
309 } | |
310 | |
311 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
312 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
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313 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
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314 |
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315 // Note: one might think that caching the most recently |
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316 // read value separately would be a win, but one would be |
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317 // wrong. When many threads are updating it, the cache |
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318 // line it's in would bounce between caches, negating |
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319 // any benefit. |
0 | 320 |
321 // In order to prevent race conditions do not load cache elements | |
322 // repeatedly, but use a local copy: | |
323 PcDesc* res; | |
324 | |
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325 // Step one: Check the most recently added value. |
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326 res = _pc_descs[0]; |
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327 if (res == NULL) return NULL; // native method; no PcDescs at all |
0 | 328 if (match_desc(res, pc_offset, approximate)) { |
329 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
330 return res; | |
331 } | |
332 | |
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333 // Step two: Check the rest of the LRU cache. |
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334 for (int i = 1; i < cache_size; ++i) { |
0 | 335 res = _pc_descs[i]; |
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336 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
0 | 337 if (match_desc(res, pc_offset, approximate)) { |
338 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
339 return res; | |
340 } | |
341 } | |
342 | |
343 // Report failure. | |
344 return NULL; | |
345 } | |
346 | |
347 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
348 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
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349 // Update the LRU cache by shifting pc_desc forward. |
0 | 350 for (int i = 0; i < cache_size; i++) { |
351 PcDesc* next = _pc_descs[i]; | |
352 _pc_descs[i] = pc_desc; | |
353 pc_desc = next; | |
354 } | |
355 } | |
356 | |
357 // adjust pcs_size so that it is a multiple of both oopSize and | |
358 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
359 // of oopSize, then 2*sizeof(PcDesc) is) | |
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360 static int adjust_pcs_size(int pcs_size) { |
0 | 361 int nsize = round_to(pcs_size, oopSize); |
362 if ((nsize % sizeof(PcDesc)) != 0) { | |
363 nsize = pcs_size + sizeof(PcDesc); | |
364 } | |
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365 assert((nsize % oopSize) == 0, "correct alignment"); |
0 | 366 return nsize; |
367 } | |
368 | |
369 //----------------------------------------------------------------------------- | |
370 | |
371 | |
372 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
373 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
374 assert(new_entry != NULL,"Must be non null"); | |
375 assert(new_entry->next() == NULL, "Must be null"); | |
376 | |
377 if (exception_cache() != NULL) { | |
378 new_entry->set_next(exception_cache()); | |
379 } | |
380 set_exception_cache(new_entry); | |
381 } | |
382 | |
383 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
384 ExceptionCache* prev = NULL; | |
385 ExceptionCache* curr = exception_cache(); | |
386 assert(curr != NULL, "nothing to remove"); | |
387 // find the previous and next entry of ec | |
388 while (curr != ec) { | |
389 prev = curr; | |
390 curr = curr->next(); | |
391 assert(curr != NULL, "ExceptionCache not found"); | |
392 } | |
393 // now: curr == ec | |
394 ExceptionCache* next = curr->next(); | |
395 if (prev == NULL) { | |
396 set_exception_cache(next); | |
397 } else { | |
398 prev->set_next(next); | |
399 } | |
400 delete curr; | |
401 } | |
402 | |
403 | |
404 // public method for accessing the exception cache | |
405 // These are the public access methods. | |
406 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
407 // We never grab a lock to read the exception cache, so we may | |
408 // have false negatives. This is okay, as it can only happen during | |
409 // the first few exception lookups for a given nmethod. | |
410 ExceptionCache* ec = exception_cache(); | |
411 while (ec != NULL) { | |
412 address ret_val; | |
413 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
414 return ret_val; | |
415 } | |
416 ec = ec->next(); | |
417 } | |
418 return NULL; | |
419 } | |
420 | |
421 | |
422 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
423 // There are potential race conditions during exception cache updates, so we | |
424 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
605 | 425 // we don't lock during reads, it is possible to have several threads attempt |
0 | 426 // to update the cache with the same data. We need to check for already inserted |
427 // copies of the current data before adding it. | |
428 | |
429 MutexLocker ml(ExceptionCache_lock); | |
430 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
431 | |
432 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
433 target_entry = new ExceptionCache(exception,pc,handler); | |
434 add_exception_cache_entry(target_entry); | |
435 } | |
436 } | |
437 | |
438 | |
439 //-------------end of code for ExceptionCache-------------- | |
440 | |
441 | |
442 int nmethod::total_size() const { | |
443 return | |
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444 consts_size() + |
1748 | 445 insts_size() + |
0 | 446 stub_size() + |
447 scopes_data_size() + | |
448 scopes_pcs_size() + | |
449 handler_table_size() + | |
450 nul_chk_table_size(); | |
451 } | |
452 | |
453 const char* nmethod::compile_kind() const { | |
454 if (is_osr_method()) return "osr"; | |
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455 if (method() != NULL && is_native_method()) return "c2n"; |
0 | 456 return NULL; |
457 } | |
458 | |
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459 // Fill in default values for various flag fields |
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460 void nmethod::init_defaults() { |
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461 _state = alive; |
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462 _marked_for_reclamation = 0; |
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463 _has_flushed_dependencies = 0; |
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464 _speculatively_disconnected = 0; |
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465 _has_unsafe_access = 0; |
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466 _has_method_handle_invokes = 0; |
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467 _lazy_critical_native = 0; |
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468 _has_wide_vectors = 0; |
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469 _marked_for_deoptimization = 0; |
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470 _lock_count = 0; |
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471 _stack_traversal_mark = 0; |
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472 _unload_reported = false; // jvmti state |
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473 |
1726 | 474 #ifdef ASSERT |
475 _oops_are_stale = false; | |
476 #endif | |
477 | |
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478 _oops_do_mark_link = NULL; |
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479 _jmethod_id = NULL; |
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480 _osr_link = NULL; |
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481 _scavenge_root_link = NULL; |
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482 _scavenge_root_state = 0; |
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483 _saved_nmethod_link = NULL; |
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484 _compiler = NULL; |
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485 #ifdef GRAAL |
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486 _graal_installed_code = NULL; |
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487 #endif |
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488 #ifdef HAVE_DTRACE_H |
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489 _trap_offset = 0; |
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490 #endif // def HAVE_DTRACE_H |
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491 } |
0 | 492 |
493 | |
494 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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495 int compile_id, |
0 | 496 CodeBuffer *code_buffer, |
497 int vep_offset, | |
498 int frame_complete, | |
499 int frame_size, | |
500 ByteSize basic_lock_owner_sp_offset, | |
501 ByteSize basic_lock_sp_offset, | |
502 OopMapSet* oop_maps) { | |
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503 code_buffer->finalize_oop_references(method); |
0 | 504 // create nmethod |
505 nmethod* nm = NULL; | |
506 { | |
507 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
508 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
509 CodeOffsets offsets; | |
510 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); | |
511 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); | |
512 nm = new (native_nmethod_size) | |
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513 nmethod(method(), native_nmethod_size, compile_id, &offsets, |
0 | 514 code_buffer, frame_size, |
515 basic_lock_owner_sp_offset, basic_lock_sp_offset, | |
516 oop_maps); | |
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517 if (nm != NULL) nmethod_stats.note_native_nmethod(nm); |
0 | 518 if (PrintAssembly && nm != NULL) |
519 Disassembler::decode(nm); | |
520 } | |
521 // verify nmethod | |
522 debug_only(if (nm) nm->verify();) // might block | |
523 | |
524 if (nm != NULL) { | |
525 nm->log_new_nmethod(); | |
526 } | |
527 | |
528 return nm; | |
529 } | |
530 | |
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531 #ifdef HAVE_DTRACE_H |
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532 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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533 CodeBuffer *code_buffer, |
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534 int vep_offset, |
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535 int trap_offset, |
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536 int frame_complete, |
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537 int frame_size) { |
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538 code_buffer->finalize_oop_references(method); |
116
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539 // create nmethod |
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540 nmethod* nm = NULL; |
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541 { |
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542 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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543 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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544 CodeOffsets offsets; |
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545 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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546 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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547 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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548 |
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549 nm = new (nmethod_size) nmethod(method(), nmethod_size, &offsets, code_buffer, frame_size); |
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550 |
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551 if (nm != NULL) nmethod_stats.note_nmethod(nm); |
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552 if (PrintAssembly && nm != NULL) |
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553 Disassembler::decode(nm); |
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554 } |
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555 // verify nmethod |
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556 debug_only(if (nm) nm->verify();) // might block |
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557 |
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558 if (nm != NULL) { |
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559 nm->log_new_nmethod(); |
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560 } |
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561 |
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562 return nm; |
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563 } |
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564 |
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565 #endif // def HAVE_DTRACE_H |
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566 |
0 | 567 nmethod* nmethod::new_nmethod(methodHandle method, |
568 int compile_id, | |
569 int entry_bci, | |
570 CodeOffsets* offsets, | |
571 int orig_pc_offset, | |
572 DebugInformationRecorder* debug_info, | |
573 Dependencies* dependencies, | |
574 CodeBuffer* code_buffer, int frame_size, | |
575 OopMapSet* oop_maps, | |
576 ExceptionHandlerTable* handler_table, | |
577 ImplicitExceptionTable* nul_chk_table, | |
578 AbstractCompiler* compiler, | |
579 int comp_level | |
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580 #ifdef GRAAL |
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581 , Handle installed_code |
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582 #endif |
0 | 583 ) |
584 { | |
585 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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586 code_buffer->finalize_oop_references(method); |
0 | 587 // create nmethod |
588 nmethod* nm = NULL; | |
589 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
590 int nmethod_size = | |
591 allocation_size(code_buffer, sizeof(nmethod)) | |
592 + adjust_pcs_size(debug_info->pcs_size()) | |
593 + round_to(dependencies->size_in_bytes() , oopSize) | |
594 + round_to(handler_table->size_in_bytes(), oopSize) | |
595 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
596 + round_to(debug_info->data_size() , oopSize); | |
597 nm = new (nmethod_size) | |
598 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, | |
599 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, | |
600 oop_maps, | |
601 handler_table, | |
602 nul_chk_table, | |
603 compiler, | |
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604 comp_level |
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605 #ifdef GRAAL |
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606 , installed_code |
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607 #endif |
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608 ); |
0 | 609 if (nm != NULL) { |
610 // To make dependency checking during class loading fast, record | |
611 // the nmethod dependencies in the classes it is dependent on. | |
612 // This allows the dependency checking code to simply walk the | |
613 // class hierarchy above the loaded class, checking only nmethods | |
614 // which are dependent on those classes. The slow way is to | |
615 // check every nmethod for dependencies which makes it linear in | |
616 // the number of methods compiled. For applications with a lot | |
617 // classes the slow way is too slow. | |
618 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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619 Klass* klass = deps.context_type(); |
0 | 620 if (klass == NULL) continue; // ignore things like evol_method |
621 | |
622 // record this nmethod as dependent on this klass | |
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623 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
0 | 624 } |
625 } | |
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626 if (nm != NULL) nmethod_stats.note_nmethod(nm); |
0 | 627 if (PrintAssembly && nm != NULL) |
628 Disassembler::decode(nm); | |
629 } | |
630 | |
631 // verify nmethod | |
632 debug_only(if (nm) nm->verify();) // might block | |
633 | |
634 if (nm != NULL) { | |
635 nm->log_new_nmethod(); | |
636 } | |
637 | |
638 // done | |
639 return nm; | |
640 } | |
641 | |
642 | |
643 // For native wrappers | |
644 nmethod::nmethod( | |
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645 Method* method, |
0 | 646 int nmethod_size, |
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647 int compile_id, |
0 | 648 CodeOffsets* offsets, |
649 CodeBuffer* code_buffer, | |
650 int frame_size, | |
651 ByteSize basic_lock_owner_sp_offset, | |
652 ByteSize basic_lock_sp_offset, | |
653 OopMapSet* oop_maps ) | |
654 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
655 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 656 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
657 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
0 | 658 { |
659 { | |
660 debug_only(No_Safepoint_Verifier nsv;) | |
661 assert_locked_or_safepoint(CodeCache_lock); | |
662 | |
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663 init_defaults(); |
0 | 664 _method = method; |
665 _entry_bci = InvocationEntryBci; | |
666 // We have no exception handler or deopt handler make the | |
667 // values something that will never match a pc like the nmethod vtable entry | |
668 _exception_offset = 0; | |
669 _deoptimize_offset = 0; | |
1204 | 670 _deoptimize_mh_offset = 0; |
0 | 671 _orig_pc_offset = 0; |
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672 |
1748 | 673 _consts_offset = data_offset(); |
0 | 674 _stub_offset = data_offset(); |
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675 _oops_offset = data_offset(); |
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676 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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677 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
0 | 678 _scopes_pcs_offset = _scopes_data_offset; |
679 _dependencies_offset = _scopes_pcs_offset; | |
680 _handler_table_offset = _dependencies_offset; | |
681 _nul_chk_table_offset = _handler_table_offset; | |
682 _nmethod_end_offset = _nul_chk_table_offset; | |
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683 _compile_id = compile_id; |
0 | 684 _comp_level = CompLevel_none; |
1748 | 685 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
686 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
0 | 687 _osr_entry_point = NULL; |
688 _exception_cache = NULL; | |
689 _pc_desc_cache.reset_to(NULL); | |
690 | |
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691 code_buffer->copy_values_to(this); |
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692 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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693 CodeCache::add_scavenge_root_nmethod(this); |
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694 } |
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695 debug_only(verify_scavenge_root_oops()); |
0 | 696 CodeCache::commit(this); |
697 } | |
698 | |
699 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
700 ttyLocker ttyl; // keep the following output all in one block | |
701 // This output goes directly to the tty, not the compiler log. | |
702 // To enable tools to match it up with the compilation activity, | |
703 // be sure to tag this tty output with the compile ID. | |
704 if (xtty != NULL) { | |
705 xtty->begin_head("print_native_nmethod"); | |
706 xtty->method(_method); | |
707 xtty->stamp(); | |
708 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
709 } | |
710 // print the header part first | |
711 print(); | |
712 // then print the requested information | |
713 if (PrintNativeNMethods) { | |
714 print_code(); | |
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715 if (oop_maps != NULL) { |
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716 oop_maps->print(); |
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717 } |
0 | 718 } |
719 if (PrintRelocations) { | |
720 print_relocations(); | |
721 } | |
722 if (xtty != NULL) { | |
723 xtty->tail("print_native_nmethod"); | |
724 } | |
725 } | |
726 } | |
727 | |
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728 // For dtrace wrappers |
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729 #ifdef HAVE_DTRACE_H |
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730 nmethod::nmethod( |
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731 Method* method, |
116
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732 int nmethod_size, |
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733 CodeOffsets* offsets, |
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734 CodeBuffer* code_buffer, |
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735 int frame_size) |
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736 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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737 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
2019 | 738 _native_receiver_sp_offset(in_ByteSize(-1)), |
739 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
116
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740 { |
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741 { |
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742 debug_only(No_Safepoint_Verifier nsv;) |
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743 assert_locked_or_safepoint(CodeCache_lock); |
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744 |
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745 init_defaults(); |
116
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746 _method = method; |
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747 _entry_bci = InvocationEntryBci; |
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748 // We have no exception handler or deopt handler make the |
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749 // values something that will never match a pc like the nmethod vtable entry |
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750 _exception_offset = 0; |
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751 _deoptimize_offset = 0; |
1204 | 752 _deoptimize_mh_offset = 0; |
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753 _unwind_handler_offset = -1; |
116
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754 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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755 _orig_pc_offset = 0; |
1748 | 756 _consts_offset = data_offset(); |
116
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757 _stub_offset = data_offset(); |
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758 _oops_offset = data_offset(); |
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759 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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760 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
116
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761 _scopes_pcs_offset = _scopes_data_offset; |
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762 _dependencies_offset = _scopes_pcs_offset; |
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763 _handler_table_offset = _dependencies_offset; |
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764 _nul_chk_table_offset = _handler_table_offset; |
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765 _nmethod_end_offset = _nul_chk_table_offset; |
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766 _compile_id = 0; // default |
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767 _comp_level = CompLevel_none; |
1748 | 768 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
769 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
116
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770 _osr_entry_point = NULL; |
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771 _exception_cache = NULL; |
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772 _pc_desc_cache.reset_to(NULL); |
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773 |
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774 code_buffer->copy_values_to(this); |
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775 debug_only(verify_scavenge_root_oops()); |
116
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776 CodeCache::commit(this); |
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777 } |
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778 |
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779 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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780 ttyLocker ttyl; // keep the following output all in one block |
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781 // This output goes directly to the tty, not the compiler log. |
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782 // To enable tools to match it up with the compilation activity, |
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783 // be sure to tag this tty output with the compile ID. |
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784 if (xtty != NULL) { |
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785 xtty->begin_head("print_dtrace_nmethod"); |
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786 xtty->method(_method); |
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787 xtty->stamp(); |
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788 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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789 } |
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790 // print the header part first |
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791 print(); |
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792 // then print the requested information |
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793 if (PrintNMethods) { |
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794 print_code(); |
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795 } |
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796 if (PrintRelocations) { |
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797 print_relocations(); |
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798 } |
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799 if (xtty != NULL) { |
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800 xtty->tail("print_dtrace_nmethod"); |
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801 } |
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802 } |
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803 } |
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804 #endif // def HAVE_DTRACE_H |
0 | 805 |
806 void* nmethod::operator new(size_t size, int nmethod_size) { | |
807 // Always leave some room in the CodeCache for I2C/C2I adapters | |
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808 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) return NULL; |
0 | 809 return CodeCache::allocate(nmethod_size); |
810 } | |
811 | |
812 | |
813 nmethod::nmethod( | |
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814 Method* method, |
0 | 815 int nmethod_size, |
816 int compile_id, | |
817 int entry_bci, | |
818 CodeOffsets* offsets, | |
819 int orig_pc_offset, | |
820 DebugInformationRecorder* debug_info, | |
821 Dependencies* dependencies, | |
822 CodeBuffer *code_buffer, | |
823 int frame_size, | |
824 OopMapSet* oop_maps, | |
825 ExceptionHandlerTable* handler_table, | |
826 ImplicitExceptionTable* nul_chk_table, | |
827 AbstractCompiler* compiler, | |
828 int comp_level | |
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829 #ifdef GRAAL |
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830 , Handle installed_code |
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831 #endif |
0 | 832 ) |
833 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
834 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 835 _native_receiver_sp_offset(in_ByteSize(-1)), |
836 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
0 | 837 { |
838 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
839 { | |
840 debug_only(No_Safepoint_Verifier nsv;) | |
841 assert_locked_or_safepoint(CodeCache_lock); | |
842 | |
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843 init_defaults(); |
0 | 844 _method = method; |
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845 _entry_bci = entry_bci; |
0 | 846 _compile_id = compile_id; |
847 _comp_level = comp_level; | |
848 _compiler = compiler; | |
849 _orig_pc_offset = orig_pc_offset; | |
1748 | 850 |
851 // Section offsets | |
1762
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852 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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853 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
0 | 854 |
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855 #ifdef GRAAL |
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856 _graal_installed_code = installed_code(); |
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857 |
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858 // graal produces no (!) stub section |
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859 if (offsets->value(CodeOffsets::Exceptions) != -1) { |
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860 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); |
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861 } else { |
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862 _exception_offset = -1; |
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863 } |
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864 if (offsets->value(CodeOffsets::Deopt) != -1) { |
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865 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); |
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866 } else { |
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867 _deoptimize_offset = -1; |
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868 } |
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869 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
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870 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); |
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871 } else { |
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872 _deoptimize_mh_offset = -1; |
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873 } |
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874 #else |
0 | 875 // Exception handler and deopt handler are in the stub section |
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876 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
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877 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
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878 |
1930 | 879 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
880 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
2106 | 881 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
1930 | 882 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
883 } else { | |
884 _deoptimize_mh_offset = -1; | |
885 } | |
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886 #endif |
1378
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887 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
1748 | 888 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
1378
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889 } else { |
1748 | 890 _unwind_handler_offset = -1; |
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891 } |
1748 | 892 |
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893 _oops_offset = data_offset(); |
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894 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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895 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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896 |
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897 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
0 | 898 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
899 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
900 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
901 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
902 | |
1748 | 903 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
904 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
905 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
0 | 906 _exception_cache = NULL; |
907 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
908 | |
909 // Copy contents of ScopeDescRecorder to nmethod | |
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910 code_buffer->copy_values_to(this); |
0 | 911 debug_info->copy_to(this); |
912 dependencies->copy_to(this); | |
989
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913 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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914 CodeCache::add_scavenge_root_nmethod(this); |
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915 } |
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916 debug_only(verify_scavenge_root_oops()); |
0 | 917 |
918 CodeCache::commit(this); | |
919 | |
920 // Copy contents of ExceptionHandlerTable to nmethod | |
921 handler_table->copy_to(this); | |
922 nul_chk_table->copy_to(this); | |
923 | |
924 // we use the information of entry points to find out if a method is | |
925 // static or non static | |
926 assert(compiler->is_c2() || | |
927 _method->is_static() == (entry_point() == _verified_entry_point), | |
928 " entry points must be same for static methods and vice versa"); | |
929 } | |
930 | |
100
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931 bool printnmethods = PrintNMethods |
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932 || CompilerOracle::should_print(_method) |
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933 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
0 | 934 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
935 print_nmethod(printnmethods); | |
936 } | |
937 } | |
938 | |
939 | |
940 // Print a short set of xml attributes to identify this nmethod. The | |
941 // output should be embedded in some other element. | |
942 void nmethod::log_identity(xmlStream* log) const { | |
943 log->print(" compile_id='%d'", compile_id()); | |
944 const char* nm_kind = compile_kind(); | |
945 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
946 if (compiler() != NULL) { | |
947 log->print(" compiler='%s'", compiler()->name()); | |
948 } | |
1783 | 949 if (TieredCompilation) { |
950 log->print(" level='%d'", comp_level()); | |
951 } | |
0 | 952 } |
953 | |
954 | |
955 #define LOG_OFFSET(log, name) \ | |
956 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
957 log->print(" " XSTR(name) "_offset='%d'" , \ | |
958 (intptr_t)name##_begin() - (intptr_t)this) | |
959 | |
960 | |
961 void nmethod::log_new_nmethod() const { | |
962 if (LogCompilation && xtty != NULL) { | |
963 ttyLocker ttyl; | |
964 HandleMark hm; | |
965 xtty->begin_elem("nmethod"); | |
966 log_identity(xtty); | |
1748 | 967 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
0 | 968 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
969 | |
970 LOG_OFFSET(xtty, relocation); | |
1762
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971 LOG_OFFSET(xtty, consts); |
1748 | 972 LOG_OFFSET(xtty, insts); |
0 | 973 LOG_OFFSET(xtty, stub); |
974 LOG_OFFSET(xtty, scopes_data); | |
975 LOG_OFFSET(xtty, scopes_pcs); | |
976 LOG_OFFSET(xtty, dependencies); | |
977 LOG_OFFSET(xtty, handler_table); | |
978 LOG_OFFSET(xtty, nul_chk_table); | |
979 LOG_OFFSET(xtty, oops); | |
980 | |
981 xtty->method(method()); | |
982 xtty->stamp(); | |
983 xtty->end_elem(); | |
984 } | |
985 } | |
986 | |
987 #undef LOG_OFFSET | |
988 | |
989 | |
990 // Print out more verbose output usually for a newly created nmethod. | |
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991 void nmethod::print_on(outputStream* st, const char* msg) const { |
0 | 992 if (st != NULL) { |
993 ttyLocker ttyl; | |
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994 if (WizardMode) { |
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995 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
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996 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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997 } else { |
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998 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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999 } |
0 | 1000 } |
1001 } | |
1002 | |
1003 | |
1004 void nmethod::print_nmethod(bool printmethod) { | |
1005 ttyLocker ttyl; // keep the following output all in one block | |
1006 if (xtty != NULL) { | |
1007 xtty->begin_head("print_nmethod"); | |
1008 xtty->stamp(); | |
1009 xtty->end_head(); | |
1010 } | |
1011 // print the header part first | |
1012 print(); | |
1013 // then print the requested information | |
1014 if (printmethod) { | |
1015 print_code(); | |
1016 print_pcs(); | |
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1017 if (oop_maps()) { |
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1018 oop_maps()->print(); |
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1019 } |
0 | 1020 } |
1021 if (PrintDebugInfo) { | |
1022 print_scopes(); | |
1023 } | |
1024 if (PrintRelocations) { | |
1025 print_relocations(); | |
1026 } | |
1027 if (PrintDependencies) { | |
1028 print_dependencies(); | |
1029 } | |
1030 if (PrintExceptionHandlers) { | |
1031 print_handler_table(); | |
1032 print_nul_chk_table(); | |
1033 } | |
1034 if (xtty != NULL) { | |
1035 xtty->tail("print_nmethod"); | |
1036 } | |
1037 } | |
1038 | |
1039 | |
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1040 // Promote one word from an assembly-time handle to a live embedded oop. |
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1041 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1042 if (handle == NULL || |
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1043 // As a special case, IC oops are initialized to 1 or -1. |
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1044 handle == (jobject) Universe::non_oop_word()) { |
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1045 (*dest) = (oop) handle; |
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1046 } else { |
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1047 (*dest) = JNIHandles::resolve_non_null(handle); |
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1048 } |
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1049 } |
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1050 |
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1051 |
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1052 // Have to have the same name because it's called by a template |
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1053 void nmethod::copy_values(GrowableArray<jobject>* array) { |
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1054 int length = array->length(); |
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1055 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
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1056 oop* dest = oops_begin(); |
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1057 for (int index = 0 ; index < length; index++) { |
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1058 initialize_immediate_oop(&dest[index], array->at(index)); |
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1059 } |
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1060 |
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1061 // Now we can fix up all the oops in the code. We need to do this |
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1062 // in the code because the assembler uses jobjects as placeholders. |
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1063 // The code and relocations have already been initialized by the |
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1064 // CodeBlob constructor, so it is valid even at this early point to |
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1065 // iterate over relocations and patch the code. |
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1066 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1067 } |
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1068 |
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1069 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1070 int length = array->length(); |
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1071 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1072 Metadata** dest = metadata_begin(); |
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1073 for (int index = 0 ; index < length; index++) { |
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1074 dest[index] = array->at(index); |
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1075 } |
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1076 } |
1563
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1077 |
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1078 bool nmethod::is_at_poll_return(address pc) { |
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1079 RelocIterator iter(this, pc, pc+1); |
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1080 while (iter.next()) { |
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1081 if (iter.type() == relocInfo::poll_return_type) |
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1082 return true; |
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1083 } |
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1084 return false; |
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1085 } |
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1086 |
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1087 |
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1088 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1089 RelocIterator iter(this, pc, pc+1); |
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1090 while (iter.next()) { |
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1091 relocInfo::relocType t = iter.type(); |
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1092 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1093 return true; |
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1094 } |
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1095 return false; |
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1096 } |
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1097 |
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1098 |
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1099 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1100 // re-patch all oop-bearing instructions, just in case some oops moved |
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1101 RelocIterator iter(this, begin, end); |
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1102 while (iter.next()) { |
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1103 if (iter.type() == relocInfo::oop_type) { |
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1104 oop_Relocation* reloc = iter.oop_reloc(); |
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1105 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1106 oop* dest = reloc->oop_addr(); |
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1107 initialize_immediate_oop(dest, (jobject) *dest); |
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1108 } |
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1109 // Refresh the oop-related bits of this instruction. |
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1110 reloc->fix_oop_relocation(); |
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1111 } else if (iter.type() == relocInfo::metadata_type) { |
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1112 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1113 reloc->fix_metadata_relocation(); |
1563
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1114 } |
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1115 |
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1116 // There must not be any interfering patches or breakpoints. |
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1117 assert(!(iter.type() == relocInfo::breakpoint_type |
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1118 && iter.breakpoint_reloc()->active()), |
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1119 "no active breakpoint"); |
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1120 } |
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1121 } |
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1122 |
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1123 |
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1124 void nmethod::verify_oop_relocations() { |
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1125 // Ensure sure that the code matches the current oop values |
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1126 RelocIterator iter(this, NULL, NULL); |
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1127 while (iter.next()) { |
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1128 if (iter.type() == relocInfo::oop_type) { |
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1129 oop_Relocation* reloc = iter.oop_reloc(); |
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1130 if (!reloc->oop_is_immediate()) { |
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1131 reloc->verify_oop_relocation(); |
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1132 } |
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1133 } |
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1134 } |
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1135 } |
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1136 |
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1137 |
0 | 1138 ScopeDesc* nmethod::scope_desc_at(address pc) { |
1139 PcDesc* pd = pc_desc_at(pc); | |
1140 guarantee(pd != NULL, "scope must be present"); | |
1141 return new ScopeDesc(this, pd->scope_decode_offset(), | |
3018
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Thomas Wuerthinger <thomas@wuerthinger.net>
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1142 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
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1143 pd->return_oop()); |
0 | 1144 } |
1145 | |
1146 | |
1147 void nmethod::clear_inline_caches() { | |
1148 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
1149 if (is_zombie()) { | |
1150 return; | |
1151 } | |
1152 | |
1153 RelocIterator iter(this); | |
1154 while (iter.next()) { | |
1155 iter.reloc()->clear_inline_cache(); | |
1156 } | |
1157 } | |
1158 | |
1159 | |
1160 void nmethod::cleanup_inline_caches() { | |
1161 | |
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1162 assert_locked_or_safepoint(CompiledIC_lock); |
0 | 1163 |
1164 // If the method is not entrant or zombie then a JMP is plastered over the | |
1165 // first few bytes. If an oop in the old code was there, that oop | |
1166 // should not get GC'd. Skip the first few bytes of oops on | |
1167 // not-entrant methods. | |
1168 address low_boundary = verified_entry_point(); | |
1169 if (!is_in_use()) { | |
1170 low_boundary += NativeJump::instruction_size; | |
1171 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1172 // This means that the low_boundary is going to be a little too high. | |
1173 // This shouldn't matter, since oops of non-entrant methods are never used. | |
1174 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
1175 } | |
1176 | |
1177 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
1178 ResourceMark rm; | |
1179 RelocIterator iter(this, low_boundary); | |
1180 while(iter.next()) { | |
1181 switch(iter.type()) { | |
1182 case relocInfo::virtual_call_type: | |
1183 case relocInfo::opt_virtual_call_type: { | |
1184 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
1185 // Ok, to lookup references to zombies here | |
1186 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
1187 if( cb != NULL && cb->is_nmethod() ) { | |
1188 nmethod* nm = (nmethod*)cb; | |
1189 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1190 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
0 | 1191 } |
1192 break; | |
1193 } | |
1194 case relocInfo::static_call_type: { | |
1195 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
1196 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
1197 if( cb != NULL && cb->is_nmethod() ) { | |
1198 nmethod* nm = (nmethod*)cb; | |
1199 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1200 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
0 | 1201 } |
1202 break; | |
1203 } | |
1204 } | |
1205 } | |
1206 } | |
1207 | |
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1208 // This is a private interface with the sweeper. |
0 | 1209 void nmethod::mark_as_seen_on_stack() { |
1210 assert(is_not_entrant(), "must be a non-entrant method"); | |
1644
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1211 // Set the traversal mark to ensure that the sweeper does 2 |
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1212 // cleaning passes before moving to zombie. |
0 | 1213 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
1214 } | |
1215 | |
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1216 // Tell if a non-entrant method can be converted to a zombie (i.e., |
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1217 // there are no activations on the stack, not in use by the VM, |
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1218 // and not in use by the ServiceThread) |
0 | 1219 bool nmethod::can_not_entrant_be_converted() { |
1220 assert(is_not_entrant(), "must be a non-entrant method"); | |
1221 | |
1222 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
1223 // count can be greater than the stack traversal count before it hits the | |
1224 // nmethod for the second time. | |
2342
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1225 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
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1226 !is_locked_by_vm(); |
0 | 1227 } |
1228 | |
1229 void nmethod::inc_decompile_count() { | |
5036
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1230 #ifndef GRAAL |
1783 | 1231 if (!is_compiled_by_c2()) return; |
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1232 #endif |
0 | 1233 // Could be gated by ProfileTraps, but do not bother... |
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1234 Method* m = method(); |
0 | 1235 if (m == NULL) return; |
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1236 MethodData* mdo = m->method_data(); |
0 | 1237 if (mdo == NULL) return; |
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1238 // There is a benign race here. See comments in methodData.hpp. |
0 | 1239 mdo->inc_decompile_count(); |
1240 } | |
1241 | |
1242 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
1243 | |
1244 post_compiled_method_unload(); | |
1245 | |
1246 // Since this nmethod is being unloaded, make sure that dependencies | |
1247 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
1248 // indicate that this work is being done during a GC. | |
1249 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
1250 assert(is_alive != NULL, "Should be non-NULL"); | |
1251 // A non-NULL is_alive closure indicates that this is being called during GC. | |
1252 flush_dependencies(is_alive); | |
1253 | |
1254 // Break cycle between nmethod & method | |
1255 if (TraceClassUnloading && WizardMode) { | |
1256 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
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1257 " unloadable], Method*(" INTPTR_FORMAT |
0 | 1258 "), cause(" INTPTR_FORMAT ")", |
1259 this, (address)_method, (address)cause); | |
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1260 if (!Universe::heap()->is_gc_active()) |
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1261 cause->klass()->print(); |
0 | 1262 } |
941 | 1263 // Unlink the osr method, so we do not look this up again |
1264 if (is_osr_method()) { | |
1265 invalidate_osr_method(); | |
1266 } | |
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1267 // If _method is already NULL the Method* is about to be unloaded, |
0 | 1268 // so we don't have to break the cycle. Note that it is possible to |
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1269 // have the Method* live here, in case we unload the nmethod because |
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1270 // it is pointing to some oop (other than the Method*) being unloaded. |
0 | 1271 if (_method != NULL) { |
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1272 // OSR methods point to the Method*, but the Method* does not |
0 | 1273 // point back! |
1274 if (_method->code() == this) { | |
1275 _method->clear_code(); // Break a cycle | |
1276 } | |
1277 _method = NULL; // Clear the method of this dead nmethod | |
1278 } | |
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1279 |
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1280 #ifdef GRAAL |
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1281 if (_graal_installed_code != NULL) { |
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1282 HotSpotInstalledCode::set_nmethod(_graal_installed_code, 0); |
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1283 _graal_installed_code = NULL; |
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1284 } |
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1285 #endif |
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1286 |
0 | 1287 // Make the class unloaded - i.e., change state and notify sweeper |
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1288 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 1289 if (is_in_use()) { |
1290 // Transitioning directly from live to unloaded -- so | |
1291 // we need to force a cache clean-up; remember this | |
1292 // for later on. | |
1293 CodeCache::set_needs_cache_clean(true); | |
1294 } | |
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1295 _state = unloaded; |
0 | 1296 |
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1297 // Log the unloading. |
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1298 log_state_change(); |
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1299 |
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1300 // The Method* is gone at this point |
0 | 1301 assert(_method == NULL, "Tautology"); |
1302 | |
989
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1303 set_osr_link(NULL); |
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1304 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
0 | 1305 NMethodSweeper::notify(this); |
1306 } | |
1307 | |
1308 void nmethod::invalidate_osr_method() { | |
1309 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
1310 // Remove from list of active nmethods | |
1311 if (method() != NULL) | |
6940
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1312 method()->method_holder()->remove_osr_nmethod(this); |
0 | 1313 // Set entry as invalid |
1314 _entry_bci = InvalidOSREntryBci; | |
1315 } | |
1316 | |
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1317 void nmethod::log_state_change() const { |
0 | 1318 if (LogCompilation) { |
1319 if (xtty != NULL) { | |
1320 ttyLocker ttyl; // keep the following output all in one block | |
1644
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1321 if (_state == unloaded) { |
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1322 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
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1323 os::current_thread_id()); |
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1324 } else { |
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1325 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
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1326 os::current_thread_id(), |
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1327 (_state == zombie ? " zombie='1'" : "")); |
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1328 } |
0 | 1329 log_identity(xtty); |
1330 xtty->stamp(); | |
1331 xtty->end_elem(); | |
1332 } | |
1333 } | |
1644
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1334 if (PrintCompilation && _state != unloaded) { |
2405
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1335 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
0 | 1336 } |
1337 } | |
1338 | |
1339 // Common functionality for both make_not_entrant and make_zombie | |
1141 | 1340 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
0 | 1341 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
2342
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1342 assert(!is_zombie(), "should not already be a zombie"); |
0 | 1343 |
1644
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1344 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
0 | 1345 nmethodLocker nml(this); |
1644
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1346 methodHandle the_method(method()); |
1726 | 1347 No_Safepoint_Verifier nsv; |
0 | 1348 |
1349 { | |
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1350 // invalidate osr nmethod before acquiring the patching lock since |
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1351 // they both acquire leaf locks and we don't want a deadlock. |
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1352 // This logic is equivalent to the logic below for patching the |
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1353 // verified entry point of regular methods. |
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1354 if (is_osr_method()) { |
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1355 // this effectively makes the osr nmethod not entrant |
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1356 invalidate_osr_method(); |
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1357 } |
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1358 |
0 | 1359 // Enter critical section. Does not block for safepoint. |
1360 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
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1361 |
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1362 if (_state == state) { |
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1363 // another thread already performed this transition so nothing |
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1364 // to do, but return false to indicate this. |
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1365 return false; |
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1366 } |
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1367 |
3683
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1368 #ifdef GRAAL |
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1369 if (_graal_installed_code != NULL) { |
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1370 HotSpotInstalledCode::set_nmethod(_graal_installed_code, 0); |
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1371 _graal_installed_code = NULL; |
3683
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1372 } |
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1373 #endif |
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1374 |
0 | 1375 // The caller can be calling the method statically or through an inline |
1376 // cache call. | |
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1377 if (!is_osr_method() && !is_not_entrant()) { |
0 | 1378 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
1379 SharedRuntime::get_handle_wrong_method_stub()); | |
1380 } | |
1381 | |
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1382 if (is_in_use()) { |
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1383 // It's a true state change, so mark the method as decompiled. |
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1384 // Do it only for transition from alive. |
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1385 inc_decompile_count(); |
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1386 } |
1206
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1387 |
0 | 1388 // Change state |
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1389 _state = state; |
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1390 |
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1391 // Log the transition once |
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1392 log_state_change(); |
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1393 |
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1394 // Remove nmethod from method. |
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1395 // We need to check if both the _code and _from_compiled_code_entry_point |
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1396 // refer to this nmethod because there is a race in setting these two fields |
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1397 // in Method* as seen in bugid 4947125. |
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1398 // If the vep() points to the zombie nmethod, the memory for the nmethod |
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1399 // could be flushed and the compiler and vtable stubs could still call |
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1400 // through it. |
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1401 if (method() != NULL && (method()->code() == this || |
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1402 method()->from_compiled_entry() == verified_entry_point())) { |
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1403 HandleMark hm; |
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1404 method()->clear_code(); |
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1405 } |
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1406 |
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1407 if (state == not_entrant) { |
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1408 mark_as_seen_on_stack(); |
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1409 } |
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1410 |
0 | 1411 } // leave critical region under Patching_lock |
1412 | |
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1413 // When the nmethod becomes zombie it is no longer alive so the |
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1414 // dependencies must be flushed. nmethods in the not_entrant |
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1415 // state will be flushed later when the transition to zombie |
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1416 // happens or they get unloaded. |
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1417 if (state == zombie) { |
1726 | 1418 { |
1419 // Flushing dependecies must be done before any possible | |
1420 // safepoint can sneak in, otherwise the oops used by the | |
1421 // dependency logic could have become stale. | |
1422 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
1423 flush_dependencies(NULL); | |
1424 } | |
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1425 |
2342
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1426 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
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1427 // event and it hasn't already been reported for this nmethod then |
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1428 // report it now. The event may have been reported earilier if the GC |
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1429 // marked it for unloading). JvmtiDeferredEventQueue support means |
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1430 // we no longer go to a safepoint here. |
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1431 post_compiled_method_unload(); |
1726 | 1432 |
1433 #ifdef ASSERT | |
1434 // It's no longer safe to access the oops section since zombie | |
1435 // nmethods aren't scanned for GC. | |
1436 _oops_are_stale = true; | |
1437 #endif | |
1538
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1438 } else { |
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1439 assert(state == not_entrant, "other cases may need to be handled differently"); |
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1440 } |
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1441 |
0 | 1442 if (TraceCreateZombies) { |
1443 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
1444 } | |
1445 | |
1446 // Make sweeper aware that there is a zombie method that needs to be removed | |
1447 NMethodSweeper::notify(this); | |
1448 | |
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1449 return true; |
0 | 1450 } |
1451 | |
1452 void nmethod::flush() { | |
1453 // Note that there are no valid oops in the nmethod anymore. | |
1454 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
1455 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
1456 | |
1457 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
1538
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1458 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1459 |
1460 // completely deallocate this method | |
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1461 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
0 | 1462 if (PrintMethodFlushing) { |
1202 | 1463 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
1464 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
0 | 1465 } |
1466 | |
1467 // We need to deallocate any ExceptionCache data. | |
1468 // Note that we do not need to grab the nmethod lock for this, it | |
1469 // better be thread safe if we're disposing of it! | |
1470 ExceptionCache* ec = exception_cache(); | |
1471 set_exception_cache(NULL); | |
1472 while(ec != NULL) { | |
1473 ExceptionCache* next = ec->next(); | |
1474 delete ec; | |
1475 ec = next; | |
1476 } | |
1477 | |
989
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|
1478 if (on_scavenge_root_list()) { |
148e5441d916
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changeset
|
1479 CodeCache::drop_scavenge_root_nmethod(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
1480 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
1481 |
1202 | 1482 if (is_speculatively_disconnected()) { |
1483 CodeCache::remove_saved_code(this); | |
1484 } | |
1485 | |
1692 | 1486 #ifdef SHARK |
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1487 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
1692 | 1488 #endif // SHARK |
1489 | |
0 | 1490 ((CodeBlob*)(this))->flush(); |
1491 | |
1492 CodeCache::free(this); | |
1493 } | |
1494 | |
1495 | |
1496 // | |
1497 // Notify all classes this nmethod is dependent on that it is no | |
1498 // longer dependent. This should only be called in two situations. | |
1499 // First, when a nmethod transitions to a zombie all dependents need | |
1500 // to be clear. Since zombification happens at a safepoint there's no | |
1501 // synchronization issues. The second place is a little more tricky. | |
1502 // During phase 1 of mark sweep class unloading may happen and as a | |
1503 // result some nmethods may get unloaded. In this case the flushing | |
1504 // of dependencies must happen during phase 1 since after GC any | |
1505 // dependencies in the unloaded nmethod won't be updated, so | |
1506 // traversing the dependency information in unsafe. In that case this | |
1507 // function is called with a non-NULL argument and this function only | |
1508 // notifies instanceKlasses that are reachable | |
1509 | |
1510 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1511 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1512 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
1513 "is_alive is non-NULL if and only if we are called during GC"); | |
1514 if (!has_flushed_dependencies()) { | |
1515 set_has_flushed_dependencies(); | |
1516 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
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|
1517 Klass* klass = deps.context_type(); |
0 | 1518 if (klass == NULL) continue; // ignore things like evol_method |
1519 | |
1520 // During GC the is_alive closure is non-NULL, and is used to | |
1521 // determine liveness of dependees that need to be updated. | |
6725
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|
1522 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
da91efe96a93
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|
1523 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
0 | 1524 } |
1525 } | |
1526 } | |
1527 } | |
1528 | |
1529 | |
1530 // If this oop is not live, the nmethod can be unloaded. | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
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6725
diff
changeset
|
1531 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
0 | 1532 assert(root != NULL, "just checking"); |
1533 oop obj = *root; | |
1534 if (obj == NULL || is_alive->do_object_b(obj)) { | |
1535 return false; | |
1536 } | |
6725
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|
1537 |
989
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6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
1538 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
148e5441d916
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diff
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|
1539 // simply because one of its constant oops has gone dead. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
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|
1540 // No actual classes need to be unloaded in order for this to occur. |
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diff
changeset
|
1541 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
0 | 1542 make_unloaded(is_alive, obj); |
1543 return true; | |
1544 } | |
1545 | |
1546 // ------------------------------------------------------------------ | |
1547 // post_compiled_method_load_event | |
1548 // new method for install_code() path | |
1549 // Transfer information from compilation to jvmti | |
1550 void nmethod::post_compiled_method_load_event() { | |
1551 | |
6725
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|
1552 Method* moop = method(); |
4006 | 1553 #ifndef USDT2 |
0 | 1554 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
1555 moop->klass_name()->bytes(), | |
1556 moop->klass_name()->utf8_length(), | |
1557 moop->name()->bytes(), | |
1558 moop->name()->utf8_length(), | |
1559 moop->signature()->bytes(), | |
1560 moop->signature()->utf8_length(), | |
1748 | 1561 insts_begin(), insts_size()); |
4006 | 1562 #else /* USDT2 */ |
1563 HOTSPOT_COMPILED_METHOD_LOAD( | |
1564 (char *) moop->klass_name()->bytes(), | |
1565 moop->klass_name()->utf8_length(), | |
1566 (char *) moop->name()->bytes(), | |
1567 moop->name()->utf8_length(), | |
1568 (char *) moop->signature()->bytes(), | |
1569 moop->signature()->utf8_length(), | |
1570 insts_begin(), insts_size()); | |
1571 #endif /* USDT2 */ | |
0 | 1572 |
1616
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never
parents:
1602
diff
changeset
|
1573 if (JvmtiExport::should_post_compiled_method_load() || |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1574 JvmtiExport::should_post_compiled_method_unload()) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1575 get_and_cache_jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1576 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1577 |
0 | 1578 if (JvmtiExport::should_post_compiled_method_load()) { |
2195
bf8517f4e4d0
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diff
changeset
|
1579 // Let the Service thread (which is a real Java thread) post the event |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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diff
changeset
|
1580 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
bf8517f4e4d0
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diff
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|
1581 JvmtiDeferredEventQueue::enqueue( |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
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diff
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|
1582 JvmtiDeferredEvent::compiled_method_load_event(this)); |
0 | 1583 } |
1584 } | |
1585 | |
1616
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never
parents:
1602
diff
changeset
|
1586 jmethodID nmethod::get_and_cache_jmethod_id() { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1587 if (_jmethod_id == NULL) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1588 // Cache the jmethod_id since it can no longer be looked up once the |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1589 // method itself has been marked for unloading. |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1590 _jmethod_id = method()->jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1591 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1592 return _jmethod_id; |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1593 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1594 |
0 | 1595 void nmethod::post_compiled_method_unload() { |
1577
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1596 if (unload_reported()) { |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1597 // During unloading we transition to unloaded and then to zombie |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1598 // and the unloading is reported during the first transition. |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1599 return; |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1600 } |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1601 |
0 | 1602 assert(_method != NULL && !is_unloaded(), "just checking"); |
1603 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
1604 | |
1605 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1606 // post the event. Sometime later this nmethod will be made a zombie |
6725
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coleenp
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6266
diff
changeset
|
1607 // by the sweeper but the Method* will not be valid at that point. |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1608 // If the _jmethod_id is null then no load event was ever requested |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1609 // so don't bother posting the unload. The main reason for this is |
6725
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coleenp
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6266
diff
changeset
|
1610 // that the jmethodID is a weak reference to the Method* so if |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1611 // it's being unloaded there's no way to look it up since the weak |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1612 // ref will have been cleared. |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1613 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
0 | 1614 assert(!unload_reported(), "already unloaded"); |
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1615 JvmtiDeferredEvent event = |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1616 JvmtiDeferredEvent::compiled_method_unload_event(this, |
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1617 _jmethod_id, insts_begin()); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
diff
changeset
|
1618 if (SafepointSynchronize::is_at_safepoint()) { |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1619 // Don't want to take the queueing lock. Add it as pending and |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1620 // it will get enqueued later. |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
diff
changeset
|
1621 JvmtiDeferredEventQueue::add_pending_event(event); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1622 } else { |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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diff
changeset
|
1623 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
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|
1624 JvmtiDeferredEventQueue::enqueue(event); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
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|
1625 } |
0 | 1626 } |
1627 | |
1628 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
1629 // any time. As the nmethod is being unloaded now we mark it has | |
1630 // having the unload event reported - this will ensure that we don't | |
1631 // attempt to report the event in the unlikely scenario where the | |
1632 // event is enabled at the time the nmethod is made a zombie. | |
1633 set_unload_reported(); | |
1634 } | |
1635 | |
1636 // This is called at the end of the strong tracing/marking phase of a | |
1637 // GC to unload an nmethod if it contains otherwise unreachable | |
1638 // oops. | |
1639 | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1640 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
0 | 1641 // Make sure the oop's ready to receive visitors |
1642 assert(!is_zombie() && !is_unloaded(), | |
1643 "should not call follow on zombie or unloaded nmethod"); | |
1644 | |
1645 // If the method is not entrant then a JMP is plastered over the | |
1646 // first few bytes. If an oop in the old code was there, that oop | |
1647 // should not get GC'd. Skip the first few bytes of oops on | |
1648 // not-entrant methods. | |
1649 address low_boundary = verified_entry_point(); | |
1650 if (is_not_entrant()) { | |
1651 low_boundary += NativeJump::instruction_size; | |
1652 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1653 // (See comment above.) | |
1654 } | |
1655 | |
1656 // The RedefineClasses() API can cause the class unloading invariant | |
1657 // to no longer be true. See jvmtiExport.hpp for details. | |
1658 // Also, leave a debugging breadcrumb in local flag. | |
1659 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
1660 if (a_class_was_redefined) { | |
1661 // This set of the unloading_occurred flag is done before the | |
1662 // call to post_compiled_method_unload() so that the unloading | |
1663 // of this nmethod is reported. | |
1664 unloading_occurred = true; | |
1665 } | |
1666 | |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
1667 #ifdef GRAAL |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
1668 // Follow Graal method |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
1669 if (_graal_installed_code != NULL && can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { |
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1670 return; |
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1671 } |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
1672 #endif |
3683
345c3bbf9c3c
store RiCompiledMethod in nmethod and:
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
1673 |
0 | 1674 // Exception cache |
1675 ExceptionCache* ec = exception_cache(); | |
1676 while (ec != NULL) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1677 Klass* ex_klass = ec->exception_type(); |
0 | 1678 ExceptionCache* next_ec = ec->next(); |
6725
da91efe96a93
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coleenp
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6266
diff
changeset
|
1679 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { |
0 | 1680 remove_from_exception_cache(ec); |
1681 } | |
1682 ec = next_ec; | |
1683 } | |
1684 | |
1685 // If class unloading occurred we first iterate over all inline caches and | |
1686 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
1687 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
1688 // iteration below. | |
1689 if (unloading_occurred) { | |
1690 RelocIterator iter(this, low_boundary); | |
1691 while(iter.next()) { | |
1692 if (iter.type() == relocInfo::virtual_call_type) { | |
1693 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1694 if (ic->is_icholder_call()) { |
0 | 1695 // The only exception is compiledICHolder oops which may |
1696 // yet be marked below. (We check this further below). | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1697 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1698 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1699 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
0 | 1700 continue; |
1701 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1702 } else { |
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1703 Metadata* ic_oop = ic->cached_metadata(); |
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1704 if (ic_oop != NULL) { |
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1705 if (ic_oop->is_klass()) { |
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1706 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1707 continue; |
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1708 } |
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1709 } else if (ic_oop->is_method()) { |
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1710 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1711 continue; |
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1712 } |
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1713 } else { |
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1714 ShouldNotReachHere(); |
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1715 } |
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1716 } |
0 | 1717 } |
1718 ic->set_to_clean(); | |
1719 } | |
1720 } | |
1721 } | |
1722 | |
1723 // Compiled code | |
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1724 { |
0 | 1725 RelocIterator iter(this, low_boundary); |
1726 while (iter.next()) { | |
1727 if (iter.type() == relocInfo::oop_type) { | |
1728 oop_Relocation* r = iter.oop_reloc(); | |
1729 // In this loop, we must only traverse those oops directly embedded in | |
1730 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
1731 assert(1 == (r->oop_is_immediate()) + | |
1732 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1733 "oop must be found in exactly one place"); | |
1734 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
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1735 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
0 | 1736 return; |
1737 } | |
1738 } | |
1739 } | |
1740 } | |
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1741 } |
0 | 1742 |
1743 | |
1744 // Scopes | |
1745 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
1746 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1747 if (can_unload(is_alive, p, unloading_occurred)) { |
0 | 1748 return; |
1749 } | |
1750 } | |
1751 | |
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1752 // Ensure that all metadata is still alive |
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1753 verify_metadata_loaders(low_boundary, is_alive); |
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1754 } |
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1755 |
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1756 #ifdef ASSERT |
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1757 |
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1758 class CheckClass : AllStatic { |
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1759 static BoolObjectClosure* _is_alive; |
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1760 |
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1761 // Check class_loader is alive for this bit of metadata. |
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1762 static void check_class(Metadata* md) { |
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1763 Klass* klass = NULL; |
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1764 if (md->is_klass()) { |
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1765 klass = ((Klass*)md); |
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1766 } else if (md->is_method()) { |
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1767 klass = ((Method*)md)->method_holder(); |
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1768 } else if (md->is_methodData()) { |
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1769 klass = ((MethodData*)md)->method()->method_holder(); |
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1770 } else { |
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1771 md->print(); |
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1772 ShouldNotReachHere(); |
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1773 } |
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1774 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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1775 } |
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1776 public: |
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1777 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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1778 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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1779 _is_alive = is_alive; |
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1780 nm->metadata_do(check_class); |
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1781 } |
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1782 }; |
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1783 |
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1784 // This is called during a safepoint so can use static data |
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1785 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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1786 #endif // ASSERT |
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1787 |
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1788 |
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1789 // Processing of oop references should have been sufficient to keep |
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1790 // all strong references alive. Any weak references should have been |
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1791 // cleared as well. Visit all the metadata and ensure that it's |
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1792 // really alive. |
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1793 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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1794 #ifdef ASSERT |
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1795 RelocIterator iter(this, low_boundary); |
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1796 while (iter.next()) { |
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1797 // static_stub_Relocations may have dangling references to |
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1798 // Method*s so trim them out here. Otherwise it looks like |
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1799 // compiled code is maintaining a link to dead metadata. |
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1800 address static_call_addr = NULL; |
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1801 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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1802 CompiledIC* cic = CompiledIC_at(iter.reloc()); |
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1803 if (!cic->is_call_to_interpreted()) { |
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1804 static_call_addr = iter.addr(); |
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1805 cic->set_to_clean(); |
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1806 } |
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1807 } else if (iter.type() == relocInfo::static_call_type) { |
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1808 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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1809 if (!csc->is_call_to_interpreted()) { |
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1810 static_call_addr = iter.addr(); |
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1811 csc->set_to_clean(); |
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1812 } |
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1813 } |
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1814 if (static_call_addr != NULL) { |
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1815 RelocIterator sciter(this, low_boundary); |
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1816 while (sciter.next()) { |
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1817 if (sciter.type() == relocInfo::static_stub_type && |
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1818 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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1819 sciter.static_stub_reloc()->clear_inline_cache(); |
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1820 } |
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1821 } |
0 | 1822 } |
1823 } | |
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1824 // Check that the metadata embedded in the nmethod is alive |
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1825 CheckClass::do_check_class(is_alive, this); |
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1826 #endif |
0 | 1827 } |
1828 | |
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1829 |
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1830 // Iterate over metadata calling this function. Used by RedefineClasses |
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1831 void nmethod::metadata_do(void f(Metadata*)) { |
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1832 address low_boundary = verified_entry_point(); |
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1833 if (is_not_entrant()) { |
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1834 low_boundary += NativeJump::instruction_size; |
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1835 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1836 // (See comment above.) |
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1837 } |
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1838 { |
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1839 // Visit all immediate references that are embedded in the instruction stream. |
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1840 RelocIterator iter(this, low_boundary); |
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1841 while (iter.next()) { |
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1842 if (iter.type() == relocInfo::metadata_type ) { |
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1843 metadata_Relocation* r = iter.metadata_reloc(); |
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1844 // In this lmetadata, we must only follow those metadatas directly embedded in |
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1845 // the code. Other metadatas (oop_index>0) are seen as part of |
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1846 // the metadata section below. |
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1847 assert(1 == (r->metadata_is_immediate()) + |
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1848 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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1849 "metadata must be found in exactly one place"); |
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1850 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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1851 Metadata* md = r->metadata_value(); |
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1852 f(md); |
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1853 } |
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1854 } |
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1855 } |
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1856 } |
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1857 |
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1858 // Visit the metadata section |
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1859 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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1860 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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1861 Metadata* md = *p; |
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1862 f(md); |
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1863 } |
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1864 // Call function Method*, not embedded in these other places. |
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1865 if (_method != NULL) f(_method); |
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1866 } |
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1867 |
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1868 |
941 | 1869 // This method is called twice during GC -- once while |
1870 // tracing the "active" nmethods on thread stacks during | |
1871 // the (strong) marking phase, and then again when walking | |
1872 // the code cache contents during the weak roots processing | |
1873 // phase. The two uses are distinguished by means of the | |
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1874 // 'do_strong_roots_only' flag, which is true in the first |
941 | 1875 // case. We want to walk the weak roots in the nmethod |
1876 // only in the second case. The weak roots in the nmethod | |
1877 // are the oops in the ExceptionCache and the InlineCache | |
1878 // oops. | |
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1879 void nmethod::oops_do(OopClosure* f, bool do_strong_roots_only) { |
0 | 1880 // make sure the oops ready to receive visitors |
1881 assert(!is_zombie() && !is_unloaded(), | |
1882 "should not call follow on zombie or unloaded nmethod"); | |
1883 | |
1884 // If the method is not entrant or zombie then a JMP is plastered over the | |
1885 // first few bytes. If an oop in the old code was there, that oop | |
1886 // should not get GC'd. Skip the first few bytes of oops on | |
1887 // not-entrant methods. | |
1888 address low_boundary = verified_entry_point(); | |
1889 if (is_not_entrant()) { | |
1890 low_boundary += NativeJump::instruction_size; | |
1891 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1892 // (See comment above.) | |
1893 } | |
1894 | |
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1895 #ifdef GRAAL |
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1896 if (_graal_installed_code != NULL) { |
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1897 f->do_oop((oop*) &_graal_installed_code); |
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1898 } |
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1899 #endif |
0 | 1900 |
1901 RelocIterator iter(this, low_boundary); | |
941 | 1902 |
0 | 1903 while (iter.next()) { |
1904 if (iter.type() == relocInfo::oop_type ) { | |
1905 oop_Relocation* r = iter.oop_reloc(); | |
1906 // In this loop, we must only follow those oops directly embedded in | |
1907 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
941 | 1908 assert(1 == (r->oop_is_immediate()) + |
1909 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1910 "oop must be found in exactly one place"); | |
0 | 1911 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
1912 f->do_oop(r->oop_addr()); | |
1913 } | |
1914 } | |
1915 } | |
1916 | |
1917 // Scopes | |
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1918 // This includes oop constants not inlined in the code stream. |
0 | 1919 for (oop* p = oops_begin(); p < oops_end(); p++) { |
1920 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
1921 f->do_oop(p); | |
1922 } | |
1923 } | |
1924 | |
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1925 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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1926 |
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1927 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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1928 |
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1929 // An nmethod is "marked" if its _mark_link is set non-null. |
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1930 // Even if it is the end of the linked list, it will have a non-null link value, |
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1931 // as long as it is on the list. |
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1932 // This code must be MP safe, because it is used from parallel GC passes. |
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1933 bool nmethod::test_set_oops_do_mark() { |
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1934 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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1935 nmethod* observed_mark_link = _oops_do_mark_link; |
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1936 if (observed_mark_link == NULL) { |
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1937 // Claim this nmethod for this thread to mark. |
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1938 observed_mark_link = (nmethod*) |
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1939 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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1940 if (observed_mark_link == NULL) { |
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1941 |
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1942 // Atomically append this nmethod (now claimed) to the head of the list: |
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1943 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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1944 for (;;) { |
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1945 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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1946 _oops_do_mark_link = required_mark_nmethods; |
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1947 observed_mark_nmethods = (nmethod*) |
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1948 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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1949 if (observed_mark_nmethods == required_mark_nmethods) |
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1950 break; |
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1951 } |
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1952 // Mark was clear when we first saw this guy. |
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1953 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
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1954 return false; |
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1955 } |
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1956 } |
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1957 // On fall through, another racing thread marked this nmethod before we did. |
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1958 return true; |
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1959 } |
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1960 |
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1961 void nmethod::oops_do_marking_prologue() { |
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1962 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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1963 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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1964 // We use cmpxchg_ptr instead of regular assignment here because the user |
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1965 // may fork a bunch of threads, and we need them all to see the same state. |
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1966 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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1967 guarantee(observed == NULL, "no races in this sequential code"); |
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1968 } |
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1969 |
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1970 void nmethod::oops_do_marking_epilogue() { |
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1971 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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1972 nmethod* cur = _oops_do_mark_nmethods; |
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1973 while (cur != NMETHOD_SENTINEL) { |
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1974 assert(cur != NULL, "not NULL-terminated"); |
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1975 nmethod* next = cur->_oops_do_mark_link; |
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1976 cur->_oops_do_mark_link = NULL; |
2375
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1977 cur->fix_oop_relocations(); |
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1978 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
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1979 cur = next; |
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1980 } |
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1981 void* required = _oops_do_mark_nmethods; |
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1982 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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1983 guarantee(observed == required, "no races in this sequential code"); |
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1984 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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1985 } |
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1986 |
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1987 class DetectScavengeRoot: public OopClosure { |
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1988 bool _detected_scavenge_root; |
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1989 public: |
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1990 DetectScavengeRoot() : _detected_scavenge_root(false) |
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1991 { NOT_PRODUCT(_print_nm = NULL); } |
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1992 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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1993 virtual void do_oop(oop* p) { |
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1994 if ((*p) != NULL && (*p)->is_scavengable()) { |
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1995 NOT_PRODUCT(maybe_print(p)); |
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1996 _detected_scavenge_root = true; |
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1997 } |
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1998 } |
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1999 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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2000 |
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2001 #ifndef PRODUCT |
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2002 nmethod* _print_nm; |
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2003 void maybe_print(oop* p) { |
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2004 if (_print_nm == NULL) return; |
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2005 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
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2006 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
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2007 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
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2008 (intptr_t)(*p), (intptr_t)p); |
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2009 (*p)->print(); |
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2010 } |
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2011 #endif //PRODUCT |
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2012 }; |
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2013 |
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2014 bool nmethod::detect_scavenge_root_oops() { |
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2015 DetectScavengeRoot detect_scavenge_root; |
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2016 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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2017 oops_do(&detect_scavenge_root); |
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2018 return detect_scavenge_root.detected_scavenge_root(); |
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2019 } |
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2020 |
0 | 2021 // Method that knows how to preserve outgoing arguments at call. This method must be |
2022 // called with a frame corresponding to a Java invoke | |
2023 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
1692 | 2024 #ifndef SHARK |
0 | 2025 if (!method()->is_native()) { |
2026 SimpleScopeDesc ssd(this, fr.pc()); | |
2142 | 2027 Bytecode_invoke call(ssd.method(), ssd.bci()); |
3458
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2028 // compiled invokedynamic call sites have an implicit receiver at |
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2029 // resolution time, so make sure it gets GC'ed. |
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2030 bool has_receiver = !call.is_invokestatic(); |
2177
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2031 Symbol* signature = call.signature(); |
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2032 fr.oops_compiled_arguments_do(signature, has_receiver, reg_map, f); |
0 | 2033 } |
1692 | 2034 #endif // !SHARK |
0 | 2035 } |
2036 | |
2037 | |
2038 oop nmethod::embeddedOop_at(u_char* p) { | |
2349
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2039 RelocIterator iter(this, p, p + 1); |
0 | 2040 while (iter.next()) |
2041 if (iter.type() == relocInfo::oop_type) { | |
2042 return iter.oop_reloc()->oop_value(); | |
2043 } | |
2044 return NULL; | |
2045 } | |
2046 | |
2047 | |
2048 inline bool includes(void* p, void* from, void* to) { | |
2049 return from <= p && p < to; | |
2050 } | |
2051 | |
2052 | |
2053 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
2054 assert(count >= 2, "must be sentinel values, at least"); | |
2055 | |
2056 #ifdef ASSERT | |
2057 // must be sorted and unique; we do a binary search in find_pc_desc() | |
2058 int prev_offset = pcs[0].pc_offset(); | |
2059 assert(prev_offset == PcDesc::lower_offset_limit, | |
2060 "must start with a sentinel"); | |
2061 for (int i = 1; i < count; i++) { | |
2062 int this_offset = pcs[i].pc_offset(); | |
2063 assert(this_offset > prev_offset, "offsets must be sorted"); | |
2064 prev_offset = this_offset; | |
2065 } | |
2066 assert(prev_offset == PcDesc::upper_offset_limit, | |
2067 "must end with a sentinel"); | |
2068 #endif //ASSERT | |
2069 | |
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2070 // Search for MethodHandle invokes and tag the nmethod. |
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2071 for (int i = 0; i < count; i++) { |
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2072 if (pcs[i].is_method_handle_invoke()) { |
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2073 set_has_method_handle_invokes(true); |
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2074 break; |
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2075 } |
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2076 } |
2083
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2077 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
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2078 |
0 | 2079 int size = count * sizeof(PcDesc); |
2080 assert(scopes_pcs_size() >= size, "oob"); | |
2081 memcpy(scopes_pcs_begin(), pcs, size); | |
2082 | |
2083 // Adjust the final sentinel downward. | |
2084 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
2085 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
1748 | 2086 last_pc->set_pc_offset(content_size() + 1); |
0 | 2087 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
2088 // Fill any rounding gaps with copies of the last record. | |
2089 last_pc[1] = last_pc[0]; | |
2090 } | |
2091 // The following assert could fail if sizeof(PcDesc) is not | |
2092 // an integral multiple of oopSize (the rounding term). | |
2093 // If it fails, change the logic to always allocate a multiple | |
2094 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
2095 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
2096 } | |
2097 | |
2098 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
2099 assert(scopes_data_size() >= size, "oob"); | |
2100 memcpy(scopes_data_begin(), buffer, size); | |
2101 } | |
2102 | |
2103 | |
2104 #ifdef ASSERT | |
2105 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
2106 PcDesc* lower = nm->scopes_pcs_begin(); | |
2107 PcDesc* upper = nm->scopes_pcs_end(); | |
2108 lower += 1; // exclude initial sentinel | |
2109 PcDesc* res = NULL; | |
2110 for (PcDesc* p = lower; p < upper; p++) { | |
2111 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
2112 if (match_desc(p, pc_offset, approximate)) { | |
2113 if (res == NULL) | |
2114 res = p; | |
2115 else | |
2116 res = (PcDesc*) badAddress; | |
2117 } | |
2118 } | |
2119 return res; | |
2120 } | |
2121 #endif | |
2122 | |
2123 | |
2124 // Finds a PcDesc with real-pc equal to "pc" | |
2125 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
1748 | 2126 address base_address = code_begin(); |
0 | 2127 if ((pc < base_address) || |
2128 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
2129 return NULL; // PC is wildly out of range | |
2130 } | |
2131 int pc_offset = (int) (pc - base_address); | |
2132 | |
2133 // Check the PcDesc cache if it contains the desired PcDesc | |
2134 // (This as an almost 100% hit rate.) | |
2135 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
2136 if (res != NULL) { | |
2137 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
2138 return res; | |
2139 } | |
2140 | |
2141 // Fallback algorithm: quasi-linear search for the PcDesc | |
2142 // Find the last pc_offset less than the given offset. | |
2143 // The successor must be the required match, if there is a match at all. | |
2144 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
2145 PcDesc* lower = scopes_pcs_begin(); | |
2146 PcDesc* upper = scopes_pcs_end(); | |
2147 upper -= 1; // exclude final sentinel | |
2148 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
2149 | |
2150 #define assert_LU_OK \ | |
2151 /* invariant on lower..upper during the following search: */ \ | |
2152 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
2153 assert(upper->pc_offset() >= pc_offset, "sanity") | |
2154 assert_LU_OK; | |
2155 | |
2156 // Use the last successful return as a split point. | |
2157 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
2158 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2159 if (mid->pc_offset() < pc_offset) { | |
2160 lower = mid; | |
2161 } else { | |
2162 upper = mid; | |
2163 } | |
2164 | |
2165 // Take giant steps at first (4096, then 256, then 16, then 1) | |
2166 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
2167 const int RADIX = (1 << LOG2_RADIX); | |
2168 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
2169 while ((mid = lower + step) < upper) { | |
2170 assert_LU_OK; | |
2171 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2172 if (mid->pc_offset() < pc_offset) { | |
2173 lower = mid; | |
2174 } else { | |
2175 upper = mid; | |
2176 break; | |
2177 } | |
2178 } | |
2179 assert_LU_OK; | |
2180 } | |
2181 | |
2182 // Sneak up on the value with a linear search of length ~16. | |
2183 while (true) { | |
2184 assert_LU_OK; | |
2185 mid = lower + 1; | |
2186 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2187 if (mid->pc_offset() < pc_offset) { | |
2188 lower = mid; | |
2189 } else { | |
2190 upper = mid; | |
2191 break; | |
2192 } | |
2193 } | |
2194 #undef assert_LU_OK | |
2195 | |
2196 if (match_desc(upper, pc_offset, approximate)) { | |
2197 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
2198 _pc_desc_cache.add_pc_desc(upper); | |
2199 return upper; | |
2200 } else { | |
2201 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
2202 return NULL; | |
2203 } | |
2204 } | |
2205 | |
2206 | |
2207 bool nmethod::check_all_dependencies() { | |
2208 bool found_check = false; | |
2209 // wholesale check of all dependencies | |
2210 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2211 if (deps.check_dependency() != NULL) { | |
2212 found_check = true; | |
2213 NOT_DEBUG(break); | |
2214 } | |
2215 } | |
2216 return found_check; // tell caller if we found anything | |
2217 } | |
2218 | |
2219 bool nmethod::check_dependency_on(DepChange& changes) { | |
2220 // What has happened: | |
2221 // 1) a new class dependee has been added | |
2222 // 2) dependee and all its super classes have been marked | |
2223 bool found_check = false; // set true if we are upset | |
2224 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2225 // Evaluate only relevant dependencies. | |
2226 if (deps.spot_check_dependency_at(changes) != NULL) { | |
2227 found_check = true; | |
2228 NOT_DEBUG(break); | |
2229 } | |
2230 } | |
2231 return found_check; | |
2232 } | |
2233 | |
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2234 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
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2235 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
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2236 Array<Method*>* dependee_methods = dependee_ik->methods(); |
0 | 2237 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2238 if (deps.type() == Dependencies::evol_method) { | |
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2239 Method* method = deps.method_argument(0); |
0 | 2240 for (int j = 0; j < dependee_methods->length(); j++) { |
6725
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2241 if (dependee_methods->at(j) == method) { |
0 | 2242 // RC_TRACE macro has an embedded ResourceMark |
2243 RC_TRACE(0x01000000, | |
2244 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
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2245 _method->method_holder()->external_name(), |
0 | 2246 _method->name()->as_C_string(), |
2247 _method->signature()->as_C_string(), compile_id(), | |
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2248 method->method_holder()->external_name(), |
0 | 2249 method->name()->as_C_string(), |
2250 method->signature()->as_C_string())); | |
2251 if (TraceDependencies || LogCompilation) | |
2252 deps.log_dependency(dependee); | |
2253 return true; | |
2254 } | |
2255 } | |
2256 } | |
2257 } | |
2258 return false; | |
2259 } | |
2260 | |
2261 // Called from mark_for_deoptimization, when dependee is invalidated. | |
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2262 bool nmethod::is_dependent_on_method(Method* dependee) { |
0 | 2263 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2264 if (deps.type() != Dependencies::evol_method) | |
2265 continue; | |
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2266 Method* method = deps.method_argument(0); |
0 | 2267 if (method == dependee) return true; |
2268 } | |
2269 return false; | |
2270 } | |
2271 | |
2272 | |
2273 bool nmethod::is_patchable_at(address instr_addr) { | |
1748 | 2274 assert(insts_contains(instr_addr), "wrong nmethod used"); |
0 | 2275 if (is_zombie()) { |
2276 // a zombie may never be patched | |
2277 return false; | |
2278 } | |
2279 return true; | |
2280 } | |
2281 | |
2282 | |
2283 address nmethod::continuation_for_implicit_exception(address pc) { | |
2284 // Exception happened outside inline-cache check code => we are inside | |
2285 // an active nmethod => use cpc to determine a return address | |
1748 | 2286 int exception_offset = pc - code_begin(); |
0 | 2287 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
2288 #ifdef ASSERT | |
2289 if (cont_offset == 0) { | |
2290 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
2291 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
2292 HandleMark hm(thread); | |
2293 ResourceMark rm(thread); | |
2294 CodeBlob* cb = CodeCache::find_blob(pc); | |
2295 assert(cb != NULL && cb == this, ""); | |
2296 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
2297 print(); | |
2298 method()->print_codes(); | |
2299 print_code(); | |
2300 print_pcs(); | |
2301 } | |
2302 #endif | |
1250 | 2303 if (cont_offset == 0) { |
2304 // Let the normal error handling report the exception | |
2305 return NULL; | |
2306 } | |
1748 | 2307 return code_begin() + cont_offset; |
0 | 2308 } |
2309 | |
2310 | |
2311 | |
2312 void nmethod_init() { | |
2313 // make sure you didn't forget to adjust the filler fields | |
2314 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
2315 } | |
2316 | |
2317 | |
2318 //------------------------------------------------------------------------------------------- | |
2319 | |
2320 | |
2321 // QQQ might we make this work from a frame?? | |
2322 nmethodLocker::nmethodLocker(address pc) { | |
2323 CodeBlob* cb = CodeCache::find_blob(pc); | |
2324 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
2325 _nm = (nmethod*)cb; | |
2326 lock_nmethod(_nm); | |
2327 } | |
2328 | |
2342
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2329 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
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2330 // should pass zombie_ok == true. |
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2331 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
0 | 2332 if (nm == NULL) return; |
2333 Atomic::inc(&nm->_lock_count); | |
2342
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2334 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
0 | 2335 } |
2336 | |
2337 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
2338 if (nm == NULL) return; | |
2339 Atomic::dec(&nm->_lock_count); | |
2340 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
2341 } | |
2342 | |
1204 | 2343 |
2344 // ----------------------------------------------------------------------------- | |
2345 // nmethod::get_deopt_original_pc | |
2346 // | |
2347 // Return the original PC for the given PC if: | |
2348 // (a) the given PC belongs to a nmethod and | |
2349 // (b) it is a deopt PC | |
2350 address nmethod::get_deopt_original_pc(const frame* fr) { | |
2351 if (fr->cb() == NULL) return NULL; | |
2352 | |
2353 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
2354 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
2355 return nm->get_original_pc(fr); | |
2356 | |
2357 return NULL; | |
0 | 2358 } |
2359 | |
2360 | |
2361 // ----------------------------------------------------------------------------- | |
1135
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2362 // MethodHandle |
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2363 |
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2364 bool nmethod::is_method_handle_return(address return_pc) { |
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2365 if (!has_method_handle_invokes()) return false; |
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2366 PcDesc* pd = pc_desc_at(return_pc); |
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2367 if (pd == NULL) |
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2368 return false; |
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2369 return pd->is_method_handle_invoke(); |
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2370 } |
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2371 |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
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1109
diff
changeset
|
2372 |
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diff
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|
2373 // ----------------------------------------------------------------------------- |
0 | 2374 // Verification |
2375 | |
989
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changeset
|
2376 class VerifyOopsClosure: public OopClosure { |
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931
diff
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|
2377 nmethod* _nm; |
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jrose
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931
diff
changeset
|
2378 bool _ok; |
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6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
2379 public: |
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|
2380 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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jrose
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diff
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|
2381 bool ok() { return _ok; } |
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|
2382 virtual void do_oop(oop* p) { |
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931
diff
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|
2383 if ((*p) == NULL || (*p)->is_oop()) return; |
148e5441d916
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jrose
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931
diff
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|
2384 if (_ok) { |
148e5441d916
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jrose
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diff
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|
2385 _nm->print_nmethod(true); |
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6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2386 _ok = false; |
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6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
changeset
|
2387 } |
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jrose
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diff
changeset
|
2388 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
148e5441d916
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jrose
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diff
changeset
|
2389 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
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jrose
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931
diff
changeset
|
2390 } |
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diff
changeset
|
2391 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
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diff
changeset
|
2392 }; |
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diff
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|
2393 |
0 | 2394 void nmethod::verify() { |
2395 | |
2396 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
2397 // seems odd. | |
2398 | |
2399 if( is_zombie() || is_not_entrant() ) | |
2400 return; | |
2401 | |
2402 // Make sure all the entry points are correctly aligned for patching. | |
2403 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
2404 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2405 // assert(method()->is_oop(), "must be valid"); |
0 | 2406 |
2407 ResourceMark rm; | |
2408 | |
2409 if (!CodeCache::contains(this)) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2410 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
0 | 2411 } |
2412 | |
2413 if(is_native_method() ) | |
2414 return; | |
2415 | |
2416 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
2417 if (nm != this) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2418 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2419 this)); |
0 | 2420 } |
2421 | |
2422 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2423 if (! p->verify(this)) { | |
2424 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
2425 } | |
2426 } | |
2427 | |
989
148e5441d916
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jrose
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931
diff
changeset
|
2428 VerifyOopsClosure voc(this); |
148e5441d916
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931
diff
changeset
|
2429 oops_do(&voc); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2430 assert(voc.ok(), "embedded oops must be OK"); |
148e5441d916
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931
diff
changeset
|
2431 verify_scavenge_root_oops(); |
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jrose
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931
diff
changeset
|
2432 |
0 | 2433 verify_scopes(); |
2434 } | |
2435 | |
2436 | |
2437 void nmethod::verify_interrupt_point(address call_site) { | |
2438 // This code does not work in release mode since | |
2439 // owns_lock only is available in debug mode. | |
2440 CompiledIC* ic = NULL; | |
2441 Thread *cur = Thread::current(); | |
2442 if (CompiledIC_lock->owner() == cur || | |
2443 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && | |
2444 SafepointSynchronize::is_at_safepoint())) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2445 ic = CompiledIC_at(this, call_site); |
0 | 2446 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
2447 } else { | |
2448 MutexLocker ml_verify (CompiledIC_lock); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2449 ic = CompiledIC_at(this, call_site); |
0 | 2450 } |
2451 PcDesc* pd = pc_desc_at(ic->end_of_call()); | |
2452 assert(pd != NULL, "PcDesc must exist"); | |
2453 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
3018
5857923e563c
Fixed an issue with frame states in exception dispatch chains (now we are correctly rethrowing the exception immediately at entering the interpreter).
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2891
diff
changeset
|
2454 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2455 pd->return_oop()); |
0 | 2456 !sd->is_top(); sd = sd->sender()) { |
2457 sd->verify(); | |
2458 } | |
2459 } | |
2460 | |
2461 void nmethod::verify_scopes() { | |
2462 if( !method() ) return; // Runtime stubs have no scope | |
2463 if (method()->is_native()) return; // Ignore stub methods. | |
2464 // iterate through all interrupt point | |
2465 // and verify the debug information is valid. | |
2466 RelocIterator iter((nmethod*)this); | |
2467 while (iter.next()) { | |
2468 address stub = NULL; | |
2469 switch (iter.type()) { | |
2470 case relocInfo::virtual_call_type: | |
2471 verify_interrupt_point(iter.addr()); | |
2472 break; | |
2473 case relocInfo::opt_virtual_call_type: | |
2474 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
2475 verify_interrupt_point(iter.addr()); | |
2476 break; | |
2477 case relocInfo::static_call_type: | |
2478 stub = iter.static_call_reloc()->static_stub(); | |
2479 //verify_interrupt_point(iter.addr()); | |
2480 break; | |
2481 case relocInfo::runtime_call_type: | |
2482 address destination = iter.reloc()->value(); | |
2483 // Right now there is no way to find out which entries support | |
2484 // an interrupt point. It would be nice if we had this | |
2485 // information in a table. | |
2486 break; | |
2487 } | |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4320
diff
changeset
|
2488 #ifndef GRAAL |
0 | 2489 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4320
diff
changeset
|
2490 #endif |
0 | 2491 } |
2492 } | |
2493 | |
2494 | |
2495 // ----------------------------------------------------------------------------- | |
2496 // Non-product code | |
2497 #ifndef PRODUCT | |
2498 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2499 class DebugScavengeRoot: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2500 nmethod* _nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2501 bool _ok; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2502 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2503 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2504 bool ok() { return _ok; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2505 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2506 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2507 if (_ok) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2508 _nm->print_nmethod(true); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2509 _ok = false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2510 } |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2511 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2512 (intptr_t)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2513 (*p)->print(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2514 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2515 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2516 }; |
0 | 2517 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2518 void nmethod::verify_scavenge_root_oops() { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2519 if (!on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2520 // Actually look inside, to verify the claim that it's clean. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2521 DebugScavengeRoot debug_scavenge_root(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2522 oops_do(&debug_scavenge_root); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2523 if (!debug_scavenge_root.ok()) |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2524 fatal("found an unadvertised bad scavengable oop in the code cache"); |
0 | 2525 } |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2526 assert(scavenge_root_not_marked(), ""); |
0 | 2527 } |
2528 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2529 #endif // PRODUCT |
0 | 2530 |
2531 // Printing operations | |
2532 | |
2533 void nmethod::print() const { | |
2534 ResourceMark rm; | |
2535 ttyLocker ttyl; // keep the following output all in one block | |
2536 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2537 tty->print("Compiled method "); |
0 | 2538 |
2539 if (is_compiled_by_c1()) { | |
2540 tty->print("(c1) "); | |
2541 } else if (is_compiled_by_c2()) { | |
2542 tty->print("(c2) "); | |
1692 | 2543 } else if (is_compiled_by_shark()) { |
2544 tty->print("(shark) "); | |
0 | 2545 } else { |
2546 tty->print("(nm) "); | |
2547 } | |
2548 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2549 print_on(tty, NULL); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2550 |
0 | 2551 if (WizardMode) { |
2552 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
2553 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
2554 tty->print(" { "); | |
2555 if (is_in_use()) tty->print("in_use "); | |
2556 if (is_not_entrant()) tty->print("not_entrant "); | |
2557 if (is_zombie()) tty->print("zombie "); | |
2558 if (is_unloaded()) tty->print("unloaded "); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2559 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
0 | 2560 tty->print_cr("}:"); |
2561 } | |
2562 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2563 (address)this, | |
2564 (address)this + size(), | |
2565 size()); | |
2566 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2567 relocation_begin(), | |
2568 relocation_end(), | |
2569 relocation_size()); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2570 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2571 consts_begin(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2572 consts_end(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2573 consts_size()); |
1748 | 2574 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2575 insts_begin(), | |
2576 insts_end(), | |
2577 insts_size()); | |
0 | 2578 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2579 stub_begin(), | |
2580 stub_end(), | |
2581 stub_size()); | |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2582 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2583 oops_begin(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2584 oops_end(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2585 oops_size()); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2586 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2587 metadata_begin(), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2588 metadata_end(), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2589 metadata_size()); |
0 | 2590 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2591 scopes_data_begin(), | |
2592 scopes_data_end(), | |
2593 scopes_data_size()); | |
2594 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2595 scopes_pcs_begin(), | |
2596 scopes_pcs_end(), | |
2597 scopes_pcs_size()); | |
2598 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2599 dependencies_begin(), | |
2600 dependencies_end(), | |
2601 dependencies_size()); | |
2602 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2603 handler_table_begin(), | |
2604 handler_table_end(), | |
2605 handler_table_size()); | |
2606 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2607 nul_chk_table_begin(), | |
2608 nul_chk_table_end(), | |
2609 nul_chk_table_size()); | |
2610 } | |
2611 | |
100
c7c777385a15
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jrose
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30
diff
changeset
|
2612 void nmethod::print_code() { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2613 HandleMark hm; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2614 ResourceMark m; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2615 Disassembler::decode(this); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2616 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2617 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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30
diff
changeset
|
2618 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
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30
diff
changeset
|
2619 #ifndef PRODUCT |
0 | 2620 |
2621 void nmethod::print_scopes() { | |
2622 // Find the first pc desc for all scopes in the code and print it. | |
2623 ResourceMark rm; | |
2624 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2625 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
2626 continue; | |
2627 | |
2628 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
2629 sd->print_on(tty, p); | |
2630 } | |
2631 } | |
2632 | |
2633 void nmethod::print_dependencies() { | |
2634 ResourceMark rm; | |
2635 ttyLocker ttyl; // keep the following output all in one block | |
2636 tty->print_cr("Dependencies:"); | |
2637 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2638 deps.print_dependency(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2639 Klass* ctxk = deps.context_type(); |
0 | 2640 if (ctxk != NULL) { |
6983 | 2641 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
2642 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
0 | 2643 } |
2644 } | |
2645 deps.log_dependency(); // put it into the xml log also | |
2646 } | |
2647 } | |
2648 | |
2649 | |
2650 void nmethod::print_relocations() { | |
2651 ResourceMark m; // in case methods get printed via the debugger | |
2652 tty->print_cr("relocations:"); | |
2653 RelocIterator iter(this); | |
2654 iter.print(); | |
2655 if (UseRelocIndex) { | |
2656 jint* index_end = (jint*)relocation_end() - 1; | |
2657 jint index_size = *index_end; | |
2658 jint* index_start = (jint*)( (address)index_end - index_size ); | |
2659 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
2660 if (index_size > 0) { | |
2661 jint* ip; | |
2662 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
2663 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
2664 ip[0], | |
2665 ip[1], | |
2666 header_end()+ip[0], | |
2667 relocation_begin()-1+ip[1]); | |
2668 for (; ip < index_end; ip++) | |
2669 tty->print_cr(" (%d ?)", ip[0]); | |
2670 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip++); | |
2671 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); | |
2672 } | |
2673 } | |
2674 } | |
2675 | |
2676 | |
2677 void nmethod::print_pcs() { | |
2678 ResourceMark m; // in case methods get printed via debugger | |
2679 tty->print_cr("pc-bytecode offsets:"); | |
2680 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2681 p->print(this); | |
2682 } | |
2683 } | |
2684 | |
100
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diff
changeset
|
2685 #endif // PRODUCT |
0 | 2686 |
2687 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
2688 RelocIterator iter(this, begin, end); | |
2689 bool have_one = false; | |
2690 while (iter.next()) { | |
2691 have_one = true; | |
2692 switch (iter.type()) { | |
2693 case relocInfo::none: return "no_reloc"; | |
2694 case relocInfo::oop_type: { | |
2695 stringStream st; | |
2696 oop_Relocation* r = iter.oop_reloc(); | |
2697 oop obj = r->oop_value(); | |
2698 st.print("oop("); | |
2699 if (obj == NULL) st.print("NULL"); | |
2700 else obj->print_value_on(&st); | |
2701 st.print(")"); | |
2702 return st.as_string(); | |
2703 } | |
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
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|
2704 case relocInfo::metadata_type: { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2705 stringStream st; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
changeset
|
2706 metadata_Relocation* r = iter.metadata_reloc(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2707 Metadata* obj = r->metadata_value(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2708 st.print("metadata("); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
2709 if (obj == NULL) st.print("NULL"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2710 else obj->print_value_on(&st); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2711 st.print(")"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
2712 return st.as_string(); |
da91efe96a93
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diff
changeset
|
2713 } |
0 | 2714 case relocInfo::virtual_call_type: return "virtual_call"; |
2715 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
2716 case relocInfo::static_call_type: return "static_call"; | |
2717 case relocInfo::static_stub_type: return "static_stub"; | |
2718 case relocInfo::runtime_call_type: return "runtime_call"; | |
2719 case relocInfo::external_word_type: return "external_word"; | |
2720 case relocInfo::internal_word_type: return "internal_word"; | |
2721 case relocInfo::section_word_type: return "section_word"; | |
2722 case relocInfo::poll_type: return "poll"; | |
2723 case relocInfo::poll_return_type: return "poll_return"; | |
2724 case relocInfo::type_mask: return "type_bit_mask"; | |
2725 } | |
2726 } | |
2727 return have_one ? "other" : NULL; | |
2728 } | |
2729 | |
2730 // Return a the last scope in (begin..end] | |
2731 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
2732 PcDesc* p = pc_desc_near(begin+1); | |
2733 if (p != NULL && p->real_pc(this) <= end) { | |
2734 return new ScopeDesc(this, p->scope_decode_offset(), | |
3018
5857923e563c
Fixed an issue with frame states in exception dispatch chains (now we are correctly rethrowing the exception immediately at entering the interpreter).
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2891
diff
changeset
|
2735 p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2736 p->return_oop()); |
0 | 2737 } |
2738 return NULL; | |
2739 } | |
2740 | |
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
2741 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2742 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2743 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
5798
2585af1e26ac
implemented non-XIR lowering of invokes (todo: inline virtual dispatch and null checking of receivers)
Doug Simon <doug.simon@oracle.com>
parents:
5251
diff
changeset
|
2744 if (GRAAL_ONLY(_exception_offset >= 0 &&) block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2745 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
5798
2585af1e26ac
implemented non-XIR lowering of invokes (todo: inline virtual dispatch and null checking of receivers)
Doug Simon <doug.simon@oracle.com>
parents:
5251
diff
changeset
|
2746 if (GRAAL_ONLY(_deoptimize_offset >= 0 &&) block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2747 |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2748 if (has_method_handle_invokes()) |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2749 if (block_begin == deopt_mh_handler_begin()) stream->print_cr("[Deopt MH Handler Code]"); |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2750 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2751 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
2752 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2753 if (block_begin == entry_point()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2754 methodHandle m = method(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2755 if (m.not_null()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2756 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2757 m->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2758 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2759 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2760 if (m.not_null() && !is_osr_method()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2761 ResourceMark rm; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2762 int sizeargs = m->size_of_parameters(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2763 BasicType* sig_bt = NEW_RESOURCE_ARRAY(BasicType, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2764 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2765 { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2766 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2767 if (!m->is_static()) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2768 sig_bt[sig_index++] = T_OBJECT; // 'this' |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2769 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ss.next()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2770 BasicType t = ss.type(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2771 sig_bt[sig_index++] = t; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2772 if (type2size[t] == 2) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2773 sig_bt[sig_index++] = T_VOID; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2774 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2775 assert(type2size[t] == 1, "size is 1 or 2"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2776 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2777 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2778 assert(sig_index == sizeargs, ""); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2779 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2780 const char* spname = "sp"; // make arch-specific? |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2781 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2782 int stack_slot_offset = this->frame_size() * wordSize; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2783 int tab1 = 14, tab2 = 24; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2784 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2785 int arg_index = (m->is_static() ? 0 : -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2786 bool did_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2787 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2788 bool at_this = (arg_index == -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2789 bool at_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2790 BasicType t = (at_this ? T_OBJECT : ss.type()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2791 assert(t == sig_bt[sig_index], "sigs in sync"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2792 if (at_this) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2793 stream->print(" # this: "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2794 else |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2795 stream->print(" # parm%d: ", arg_index); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2796 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2797 VMReg fst = regs[sig_index].first(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2798 VMReg snd = regs[sig_index].second(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2799 if (fst->is_reg()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2800 stream->print("%s", fst->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2801 if (snd->is_valid()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2802 stream->print(":%s", snd->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2803 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2804 } else if (fst->is_stack()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2805 int offset = fst->reg2stack() * VMRegImpl::stack_slot_size + stack_slot_offset; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2806 if (offset == stack_slot_offset) at_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2807 stream->print("[%s+0x%x]", spname, offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2808 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2809 stream->print("reg%d:%d??", (int)(intptr_t)fst, (int)(intptr_t)snd); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2810 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2811 stream->print(" "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2812 stream->move_to(tab2); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2813 stream->print("= "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2814 if (at_this) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2815 m->method_holder()->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2816 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2817 bool did_name = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2818 if (!at_this && ss.is_object()) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2819 Symbol* name = ss.as_symbol_or_null(); |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2820 if (name != NULL) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2821 name->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2822 did_name = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2823 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2824 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2825 if (!did_name) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2826 stream->print("%s", type2name(t)); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2827 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2828 if (at_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2829 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2830 did_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2831 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2832 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2833 sig_index += type2size[t]; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2834 arg_index += 1; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2835 if (!at_this) ss.next(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2836 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2837 if (!did_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2838 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2839 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2840 stream->print("[%s+0x%x]", spname, stack_slot_offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2841 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2842 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2843 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2844 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2845 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2846 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2847 |
0 | 2848 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
2849 // First, find an oopmap in (begin, end]. | |
2850 // We use the odd half-closed interval so that oop maps and scope descs | |
2851 // which are tied to the byte after a call are printed with the call itself. | |
1748 | 2852 address base = code_begin(); |
0 | 2853 OopMapSet* oms = oop_maps(); |
2854 if (oms != NULL) { | |
2855 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
2856 OopMap* om = oms->at(i); | |
2857 address pc = base + om->offset(); | |
2858 if (pc > begin) { | |
2859 if (pc <= end) { | |
100
c7c777385a15
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parents:
30
diff
changeset
|
2860 st->move_to(column); |
c7c777385a15
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jrose
parents:
30
diff
changeset
|
2861 st->print("; "); |
c7c777385a15
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jrose
parents:
30
diff
changeset
|
2862 om->print_on(st); |
0 | 2863 } |
2864 break; | |
2865 } | |
2866 } | |
2867 } | |
100
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parents:
30
diff
changeset
|
2868 |
c7c777385a15
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jrose
parents:
30
diff
changeset
|
2869 // Print any debug info present at this pc. |
0 | 2870 ScopeDesc* sd = scope_desc_in(begin, end); |
2871 if (sd != NULL) { | |
100
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jrose
parents:
30
diff
changeset
|
2872 st->move_to(column); |
0 | 2873 if (sd->bci() == SynchronizationEntryBCI) { |
2874 st->print(";*synchronization entry"); | |
2875 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
2876 if (sd->method() == NULL) { |
100
c7c777385a15
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30
diff
changeset
|
2877 st->print("method is NULL"); |
0 | 2878 } else if (sd->method()->is_native()) { |
100
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30
diff
changeset
|
2879 st->print("method is native"); |
0 | 2880 } else { |
2142 | 2881 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
0 | 2882 st->print(";*%s", Bytecodes::name(bc)); |
2883 switch (bc) { | |
2884 case Bytecodes::_invokevirtual: | |
2885 case Bytecodes::_invokespecial: | |
2886 case Bytecodes::_invokestatic: | |
2887 case Bytecodes::_invokeinterface: | |
2888 { | |
2142 | 2889 Bytecode_invoke invoke(sd->method(), sd->bci()); |
0 | 2890 st->print(" "); |
2142 | 2891 if (invoke.name() != NULL) |
2892 invoke.name()->print_symbol_on(st); | |
0 | 2893 else |
2894 st->print("<UNKNOWN>"); | |
2895 break; | |
2896 } | |
2897 case Bytecodes::_getfield: | |
2898 case Bytecodes::_putfield: | |
2899 case Bytecodes::_getstatic: | |
2900 case Bytecodes::_putstatic: | |
2901 { | |
2142 | 2902 Bytecode_field field(sd->method(), sd->bci()); |
0 | 2903 st->print(" "); |
2142 | 2904 if (field.name() != NULL) |
2905 field.name()->print_symbol_on(st); | |
0 | 2906 else |
2907 st->print("<UNKNOWN>"); | |
2908 } | |
2909 } | |
2910 } | |
2911 } | |
100
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parents:
30
diff
changeset
|
2912 |
0 | 2913 // Print all scopes |
2914 for (;sd != NULL; sd = sd->sender()) { | |
100
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parents:
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diff
changeset
|
2915 st->move_to(column); |
0 | 2916 st->print("; -"); |
6725
da91efe96a93
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coleenp
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6266
diff
changeset
|
2917 if (sd->method() == NULL) { |
100
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parents:
30
diff
changeset
|
2918 st->print("method is NULL"); |
0 | 2919 } else { |
2920 sd->method()->print_short_name(st); | |
2921 } | |
2922 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
2923 if (lineno != -1) { | |
2924 st->print("@%d (line %d)", sd->bci(), lineno); | |
2925 } else { | |
2926 st->print("@%d", sd->bci()); | |
2927 } | |
2928 st->cr(); | |
2929 } | |
2930 } | |
2931 | |
2932 // Print relocation information | |
2933 const char* str = reloc_string_for(begin, end); | |
2934 if (str != NULL) { | |
2935 if (sd != NULL) st->cr(); | |
100
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jrose
parents:
30
diff
changeset
|
2936 st->move_to(column); |
0 | 2937 st->print("; {%s}", str); |
2938 } | |
1748 | 2939 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
0 | 2940 if (cont_offset != 0) { |
100
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parents:
30
diff
changeset
|
2941 st->move_to(column); |
1748 | 2942 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
0 | 2943 } |
2944 | |
2945 } | |
2946 | |
100
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parents:
30
diff
changeset
|
2947 #ifndef PRODUCT |
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parents:
30
diff
changeset
|
2948 |
0 | 2949 void nmethod::print_value_on(outputStream* st) const { |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2950 st->print("nmethod"); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2951 print_on(st, NULL); |
0 | 2952 } |
2953 | |
2954 void nmethod::print_calls(outputStream* st) { | |
2955 RelocIterator iter(this); | |
2956 while (iter.next()) { | |
2957 switch (iter.type()) { | |
2958 case relocInfo::virtual_call_type: | |
2959 case relocInfo::opt_virtual_call_type: { | |
2960 VerifyMutexLocker mc(CompiledIC_lock); | |
2961 CompiledIC_at(iter.reloc())->print(); | |
2962 break; | |
2963 } | |
2964 case relocInfo::static_call_type: | |
2965 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
2966 compiledStaticCall_at(iter.reloc())->print(); | |
2967 break; | |
2968 } | |
2969 } | |
2970 } | |
2971 | |
2972 void nmethod::print_handler_table() { | |
2973 ExceptionHandlerTable(this).print(); | |
2974 } | |
2975 | |
2976 void nmethod::print_nul_chk_table() { | |
1748 | 2977 ImplicitExceptionTable(this).print(code_begin()); |
0 | 2978 } |
2979 | |
4561
35ca3ade314d
enabled nmethod statistics for product build
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4320
diff
changeset
|
2980 #endif // PRODUCT |
35ca3ade314d
enabled nmethod statistics for product build
Christian Haeubl <christian.haeubl@oracle.com>
parents:
4320
diff
changeset
|
2981 |
0 | 2982 void nmethod::print_statistics() { |
2983 ttyLocker ttyl; | |
2984 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
2985 nmethod_stats.print_native_nmethod_stats(); | |
2986 nmethod_stats.print_nmethod_stats(); | |
2987 DebugInformationRecorder::print_statistics(); | |
2988 nmethod_stats.print_pc_stats(); | |
2989 Dependencies::print_statistics(); | |
2990 if (xtty != NULL) xtty->tail("statistics"); | |
2991 } | |
6999
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2992 |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2993 #ifdef GRAAL |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2994 void DebugScopedNMethod::print_on(outputStream* st) { |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2995 if (_nm != NULL) { |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2996 st->print("nmethod@%p", _nm); |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2997 Method* method = _nm->method(); |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2998 if (method != NULL) { |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
2999 char holder[O_BUFLEN]; |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3000 char nameAndSig[O_BUFLEN]; |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3001 method->method_holder()->name()->as_C_string(holder, O_BUFLEN); |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3002 method->name_and_sig_as_C_string(nameAndSig, O_BUFLEN); |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3003 st->print(" - %s::%s", holder, nameAndSig); |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3004 } |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3005 } |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3006 } |
679e6584c177
added ScopedDebugValue to add values of interest to hs_err crash logs
Doug Simon <doug.simon@oracle.com>
parents:
6988
diff
changeset
|
3007 #endif |