Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/nmethod.cpp @ 23428:be740540f60c
8134493: Cleaning inline caches of unloaded nmethods should be done in sweeper
Summary: Clean ICs of unloaded nmethods in sweeper to avoid impact on safepoint duration.
Reviewed-by: kvn, mdoerr
author | thartmann |
---|---|
date | Thu, 08 Oct 2015 09:38:24 +0200 |
parents | c1950f51ed60 |
children | 5cece4584b8e |
rev | line source |
---|---|
0 | 1 /* |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17915
diff
changeset
|
2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1538
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/codeCache.hpp" | |
27 #include "code/compiledIC.hpp" | |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3784
diff
changeset
|
28 #include "code/dependencies.hpp" |
1972 | 29 #include "code/nmethod.hpp" |
30 #include "code/scopeDesc.hpp" | |
31 #include "compiler/abstractCompiler.hpp" | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
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" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
37 #include "oops/methodData.hpp" |
1972 | 38 #include "prims/jvmtiRedefineClassesTrace.hpp" |
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
39 #include "prims/jvmtiImpl.hpp" |
20197
ce8f6bb717c9
8042195: Introduce umbrella header orderAccess.inline.hpp.
goetz
parents:
20191
diff
changeset
|
40 #include "runtime/orderAccess.inline.hpp" |
1972 | 41 #include "runtime/sharedRuntime.hpp" |
42 #include "runtime/sweeper.hpp" | |
43 #include "utilities/dtrace.hpp" | |
44 #include "utilities/events.hpp" | |
45 #include "utilities/xmlstream.hpp" | |
46 #ifdef SHARK | |
47 #include "shark/sharkCompiler.hpp" | |
48 #endif | |
0 | 49 |
17937
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17915
diff
changeset
|
50 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
78bbf4d43a14
8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents:
17915
diff
changeset
|
51 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
52 unsigned char nmethod::_global_unloading_clock = 0; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
53 |
0 | 54 #ifdef DTRACE_ENABLED |
55 | |
56 // Only bother with this argument setup if dtrace is available | |
57 | |
4006 | 58 #ifndef USDT2 |
0 | 59 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
60 const char*, int, const char*, int, const char*, int, void*, size_t); | |
61 | |
62 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
63 char*, int, char*, int, char*, int); | |
64 | |
65 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
66 { \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
67 Method* m = (method); \ |
0 | 68 if (m != NULL) { \ |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
69 Symbol* klass_name = m->klass_name(); \ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
70 Symbol* name = m->name(); \ |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
71 Symbol* signature = m->signature(); \ |
0 | 72 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
73 klass_name->bytes(), klass_name->utf8_length(), \ | |
74 name->bytes(), name->utf8_length(), \ | |
75 signature->bytes(), signature->utf8_length()); \ | |
76 } \ | |
77 } | |
4006 | 78 #else /* USDT2 */ |
79 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
80 { \ | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
81 Method* m = (method); \ |
4006 | 82 if (m != NULL) { \ |
83 Symbol* klass_name = m->klass_name(); \ | |
84 Symbol* name = m->name(); \ | |
85 Symbol* signature = m->signature(); \ | |
86 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
87 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
88 (char *) name->bytes(), name->utf8_length(), \ | |
89 (char *) signature->bytes(), signature->utf8_length()); \ | |
90 } \ | |
91 } | |
92 #endif /* USDT2 */ | |
0 | 93 |
94 #else // ndef DTRACE_ENABLED | |
95 | |
96 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
97 | |
98 #endif | |
99 | |
100 bool nmethod::is_compiled_by_c1() const { | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
101 if (compiler() == NULL) { |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
102 return false; |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
103 } |
0 | 104 return compiler()->is_c1(); |
105 } | |
106 bool nmethod::is_compiled_by_c2() const { | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
107 if (compiler() == NULL) { |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
108 return false; |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
109 } |
0 | 110 return compiler()->is_c2(); |
111 } | |
1692 | 112 bool nmethod::is_compiled_by_shark() const { |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
113 if (compiler() == NULL) { |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
114 return false; |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
115 } |
1692 | 116 return compiler()->is_shark(); |
117 } | |
0 | 118 |
119 | |
120 | |
121 //--------------------------------------------------------------------------------- | |
122 // NMethod statistics | |
123 // They are printed under various flags, including: | |
124 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
125 // (In the latter two cases, they like other stats are printed to the log only.) | |
126 | |
127 #ifndef PRODUCT | |
128 // These variables are put into one block to reduce relocations | |
129 // and make it simpler to print from the debugger. | |
130 static | |
131 struct nmethod_stats_struct { | |
132 int nmethod_count; | |
133 int total_size; | |
134 int relocation_size; | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
135 int consts_size; |
1748 | 136 int insts_size; |
0 | 137 int stub_size; |
138 int scopes_data_size; | |
139 int scopes_pcs_size; | |
140 int dependencies_size; | |
141 int handler_table_size; | |
142 int nul_chk_table_size; | |
143 int oops_size; | |
144 | |
145 void note_nmethod(nmethod* nm) { | |
146 nmethod_count += 1; | |
147 total_size += nm->size(); | |
148 relocation_size += nm->relocation_size(); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
149 consts_size += nm->consts_size(); |
1748 | 150 insts_size += nm->insts_size(); |
0 | 151 stub_size += nm->stub_size(); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
152 oops_size += nm->oops_size(); |
0 | 153 scopes_data_size += nm->scopes_data_size(); |
154 scopes_pcs_size += nm->scopes_pcs_size(); | |
155 dependencies_size += nm->dependencies_size(); | |
156 handler_table_size += nm->handler_table_size(); | |
157 nul_chk_table_size += nm->nul_chk_table_size(); | |
158 } | |
159 void print_nmethod_stats() { | |
160 if (nmethod_count == 0) return; | |
161 tty->print_cr("Statistics for %d bytecoded nmethods:", nmethod_count); | |
162 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); | |
163 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
164 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
1748 | 165 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
0 | 166 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
167 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
0 | 168 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
169 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
170 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
171 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
172 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
173 } | |
174 | |
175 int native_nmethod_count; | |
176 int native_total_size; | |
177 int native_relocation_size; | |
1748 | 178 int native_insts_size; |
0 | 179 int native_oops_size; |
180 void note_native_nmethod(nmethod* nm) { | |
181 native_nmethod_count += 1; | |
182 native_total_size += nm->size(); | |
183 native_relocation_size += nm->relocation_size(); | |
1748 | 184 native_insts_size += nm->insts_size(); |
0 | 185 native_oops_size += nm->oops_size(); |
186 } | |
187 void print_native_nmethod_stats() { | |
188 if (native_nmethod_count == 0) return; | |
189 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
190 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
191 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
1748 | 192 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
0 | 193 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
194 } | |
195 | |
196 int pc_desc_resets; // number of resets (= number of caches) | |
197 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
198 int pc_desc_approx; // number of those which have approximate true | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
199 int pc_desc_repeats; // number of _pc_descs[0] hits |
0 | 200 int pc_desc_hits; // number of LRU cache hits |
201 int pc_desc_tests; // total number of PcDesc examinations | |
202 int pc_desc_searches; // total number of quasi-binary search steps | |
203 int pc_desc_adds; // number of LUR cache insertions | |
204 | |
205 void print_pc_stats() { | |
206 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
207 pc_desc_queries, | |
208 (double)(pc_desc_tests + pc_desc_searches) | |
209 / pc_desc_queries); | |
210 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
211 pc_desc_resets, | |
212 pc_desc_queries, pc_desc_approx, | |
213 pc_desc_repeats, pc_desc_hits, | |
214 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
215 } | |
216 } nmethod_stats; | |
217 #endif //PRODUCT | |
218 | |
2321
1b4e6a5d98e0
7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
twisti
parents:
2195
diff
changeset
|
219 |
0 | 220 //--------------------------------------------------------------------------------- |
221 | |
222 | |
223 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
224 assert(pc != NULL, "Must be non null"); | |
225 assert(exception.not_null(), "Must be non null"); | |
226 assert(handler != NULL, "Must be non null"); | |
227 | |
228 _count = 0; | |
229 _exception_type = exception->klass(); | |
230 _next = NULL; | |
231 | |
232 add_address_and_handler(pc,handler); | |
233 } | |
234 | |
235 | |
236 address ExceptionCache::match(Handle exception, address pc) { | |
237 assert(pc != NULL,"Must be non null"); | |
238 assert(exception.not_null(),"Must be non null"); | |
239 if (exception->klass() == exception_type()) { | |
240 return (test_address(pc)); | |
241 } | |
242 | |
243 return NULL; | |
244 } | |
245 | |
246 | |
247 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
248 assert(exception.not_null(),"Must be non null"); | |
249 if (exception->klass() == exception_type() && count() < cache_size) { | |
250 return true; | |
251 } | |
252 return false; | |
253 } | |
254 | |
255 | |
256 address ExceptionCache::test_address(address addr) { | |
257 for (int i=0; i<count(); i++) { | |
258 if (pc_at(i) == addr) { | |
259 return handler_at(i); | |
260 } | |
261 } | |
262 return NULL; | |
263 } | |
264 | |
265 | |
266 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
267 if (test_address(addr) == handler) return true; | |
268 if (count() < cache_size) { | |
269 set_pc_at(count(),addr); | |
270 set_handler_at(count(), handler); | |
271 increment_count(); | |
272 return true; | |
273 } | |
274 return false; | |
275 } | |
276 | |
277 | |
278 // private method for handling exception cache | |
279 // These methods are private, and used to manipulate the exception cache | |
280 // directly. | |
281 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
282 ExceptionCache* ec = exception_cache(); | |
283 while (ec != NULL) { | |
284 if (ec->match_exception_with_space(exception)) { | |
285 return ec; | |
286 } | |
287 ec = ec->next(); | |
288 } | |
289 return NULL; | |
290 } | |
291 | |
292 | |
293 //----------------------------------------------------------------------------- | |
294 | |
295 | |
296 // Helper used by both find_pc_desc methods. | |
297 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
298 NOT_PRODUCT(++nmethod_stats.pc_desc_tests); | |
299 if (!approximate) | |
300 return pc->pc_offset() == pc_offset; | |
301 else | |
302 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
303 } | |
304 | |
305 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
306 if (initial_pc_desc == NULL) { | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
307 _pc_descs[0] = NULL; // native method; no PcDescs at all |
0 | 308 return; |
309 } | |
310 NOT_PRODUCT(++nmethod_stats.pc_desc_resets); | |
311 // reset the cache by filling it with benign (non-null) values | |
312 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
313 for (int i = 0; i < cache_size; i++) | |
314 _pc_descs[i] = initial_pc_desc; | |
315 } | |
316 | |
317 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
318 NOT_PRODUCT(++nmethod_stats.pc_desc_queries); | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
319 NOT_PRODUCT(if (approximate) ++nmethod_stats.pc_desc_approx); |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
320 |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
321 // Note: one might think that caching the most recently |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
322 // read value separately would be a win, but one would be |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
323 // wrong. When many threads are updating it, the cache |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
324 // line it's in would bounce between caches, negating |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
325 // any benefit. |
0 | 326 |
327 // In order to prevent race conditions do not load cache elements | |
328 // repeatedly, but use a local copy: | |
329 PcDesc* res; | |
330 | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
331 // Step one: Check the most recently added value. |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
332 res = _pc_descs[0]; |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
333 if (res == NULL) return NULL; // native method; no PcDescs at all |
0 | 334 if (match_desc(res, pc_offset, approximate)) { |
335 NOT_PRODUCT(++nmethod_stats.pc_desc_repeats); | |
336 return res; | |
337 } | |
338 | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
339 // Step two: Check the rest of the LRU cache. |
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
340 for (int i = 1; i < cache_size; ++i) { |
0 | 341 res = _pc_descs[i]; |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
342 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
0 | 343 if (match_desc(res, pc_offset, approximate)) { |
344 NOT_PRODUCT(++nmethod_stats.pc_desc_hits); | |
345 return res; | |
346 } | |
347 } | |
348 | |
349 // Report failure. | |
350 return NULL; | |
351 } | |
352 | |
353 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
354 NOT_PRODUCT(++nmethod_stats.pc_desc_adds); | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
355 // Update the LRU cache by shifting pc_desc forward. |
0 | 356 for (int i = 0; i < cache_size; i++) { |
357 PcDesc* next = _pc_descs[i]; | |
358 _pc_descs[i] = pc_desc; | |
359 pc_desc = next; | |
360 } | |
361 } | |
362 | |
363 // adjust pcs_size so that it is a multiple of both oopSize and | |
364 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
365 // of oopSize, then 2*sizeof(PcDesc) is) | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
366 static int adjust_pcs_size(int pcs_size) { |
0 | 367 int nsize = round_to(pcs_size, oopSize); |
368 if ((nsize % sizeof(PcDesc)) != 0) { | |
369 nsize = pcs_size + sizeof(PcDesc); | |
370 } | |
2339
3d5a546351ef
7023931: PcDescCache::find_pc_desc should not write _last_pc_desc
phh
parents:
2321
diff
changeset
|
371 assert((nsize % oopSize) == 0, "correct alignment"); |
0 | 372 return nsize; |
373 } | |
374 | |
375 //----------------------------------------------------------------------------- | |
376 | |
377 | |
378 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
379 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
380 assert(new_entry != NULL,"Must be non null"); | |
381 assert(new_entry->next() == NULL, "Must be null"); | |
382 | |
383 if (exception_cache() != NULL) { | |
384 new_entry->set_next(exception_cache()); | |
385 } | |
386 set_exception_cache(new_entry); | |
387 } | |
388 | |
20269 | 389 void nmethod::clean_exception_cache(BoolObjectClosure* is_alive) { |
0 | 390 ExceptionCache* prev = NULL; |
391 ExceptionCache* curr = exception_cache(); | |
20269 | 392 |
393 while (curr != NULL) { | |
394 ExceptionCache* next = curr->next(); | |
395 | |
396 Klass* ex_klass = curr->exception_type(); | |
397 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { | |
398 if (prev == NULL) { | |
399 set_exception_cache(next); | |
400 } else { | |
401 prev->set_next(next); | |
402 } | |
403 delete curr; | |
404 // prev stays the same. | |
405 } else { | |
406 prev = curr; | |
407 } | |
408 | |
409 curr = next; | |
0 | 410 } |
411 } | |
412 | |
413 // public method for accessing the exception cache | |
414 // These are the public access methods. | |
415 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
416 // We never grab a lock to read the exception cache, so we may | |
417 // have false negatives. This is okay, as it can only happen during | |
418 // the first few exception lookups for a given nmethod. | |
419 ExceptionCache* ec = exception_cache(); | |
420 while (ec != NULL) { | |
421 address ret_val; | |
422 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
423 return ret_val; | |
424 } | |
425 ec = ec->next(); | |
426 } | |
427 return NULL; | |
428 } | |
429 | |
430 | |
431 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
432 // There are potential race conditions during exception cache updates, so we | |
433 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
605 | 434 // we don't lock during reads, it is possible to have several threads attempt |
0 | 435 // to update the cache with the same data. We need to check for already inserted |
436 // copies of the current data before adding it. | |
437 | |
438 MutexLocker ml(ExceptionCache_lock); | |
439 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
440 | |
441 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
442 target_entry = new ExceptionCache(exception,pc,handler); | |
443 add_exception_cache_entry(target_entry); | |
444 } | |
445 } | |
446 | |
447 | |
448 //-------------end of code for ExceptionCache-------------- | |
449 | |
450 | |
451 int nmethod::total_size() const { | |
452 return | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
453 consts_size() + |
1748 | 454 insts_size() + |
0 | 455 stub_size() + |
456 scopes_data_size() + | |
457 scopes_pcs_size() + | |
458 handler_table_size() + | |
459 nul_chk_table_size(); | |
460 } | |
461 | |
462 const char* nmethod::compile_kind() const { | |
463 if (is_osr_method()) return "osr"; | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
464 if (method() != NULL && is_native_method()) return "c2n"; |
0 | 465 return NULL; |
466 } | |
467 | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
468 // Fill in default values for various flag fields |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
469 void nmethod::init_defaults() { |
13441 | 470 _state = in_use; |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
471 _unloading_clock = 0; |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
472 _marked_for_reclamation = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
473 _has_flushed_dependencies = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
474 _has_unsafe_access = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
475 _has_method_handle_invokes = 0; |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4872
diff
changeset
|
476 _lazy_critical_native = 0; |
6792
137868b7aa6f
7196199: java/text/Bidi/Bug6665028.java failed: Bidi run count incorrect
kvn
parents:
6790
diff
changeset
|
477 _has_wide_vectors = 0; |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
478 _marked_for_deoptimization = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
479 _lock_count = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
480 _stack_traversal_mark = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
481 _unload_reported = false; // jvmti state |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
482 |
1726 | 483 #ifdef ASSERT |
484 _oops_are_stale = false; | |
485 #endif | |
486 | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
487 _oops_do_mark_link = NULL; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
488 _jmethod_id = NULL; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
489 _osr_link = NULL; |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
490 if (UseG1GC) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
491 _unloading_next = NULL; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
492 } else { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
493 _scavenge_root_link = NULL; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
494 } |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
495 _scavenge_root_state = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
496 _compiler = NULL; |
17780 | 497 #if INCLUDE_RTM_OPT |
498 _rtm_state = NoRTM; | |
499 #endif | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
500 #ifdef HAVE_DTRACE_H |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
501 _trap_offset = 0; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
502 #endif // def HAVE_DTRACE_H |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
503 } |
0 | 504 |
505 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
506 int compile_id, |
0 | 507 CodeBuffer *code_buffer, |
508 int vep_offset, | |
509 int frame_complete, | |
510 int frame_size, | |
511 ByteSize basic_lock_owner_sp_offset, | |
512 ByteSize basic_lock_sp_offset, | |
513 OopMapSet* oop_maps) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
514 code_buffer->finalize_oop_references(method); |
0 | 515 // create nmethod |
516 nmethod* nm = NULL; | |
517 { | |
518 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
519 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
520 CodeOffsets offsets; |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
521 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
522 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
523 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
524 compile_id, &offsets, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
525 code_buffer, frame_size, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
526 basic_lock_owner_sp_offset, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
527 basic_lock_sp_offset, oop_maps); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
528 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_native_nmethod(nm)); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
529 if (PrintAssembly && nm != NULL) { |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
530 Disassembler::decode(nm); |
8864
3c786355ffb4
8009026: [parfait] Null pointer deference in hotspot/src/share/vm/code/nmethod.cpp
morris
parents:
6983
diff
changeset
|
531 } |
0 | 532 } |
533 // verify nmethod | |
534 debug_only(if (nm) nm->verify();) // might block | |
535 | |
536 if (nm != NULL) { | |
537 nm->log_new_nmethod(); | |
538 } | |
539 | |
540 return nm; | |
541 } | |
542 | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
543 #ifdef HAVE_DTRACE_H |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
544 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
545 CodeBuffer *code_buffer, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
546 int vep_offset, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
547 int trap_offset, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
548 int frame_complete, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
549 int frame_size) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
550 code_buffer->finalize_oop_references(method); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
551 // create nmethod |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
552 nmethod* nm = NULL; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
553 { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
554 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
555 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
556 CodeOffsets offsets; |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
557 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
558 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
559 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
560 |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
561 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
562 &offsets, code_buffer, frame_size); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
563 |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
564 NOT_PRODUCT(if (nm != NULL) nmethod_stats.note_nmethod(nm)); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
565 if (PrintAssembly && nm != NULL) { |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
566 Disassembler::decode(nm); |
8864
3c786355ffb4
8009026: [parfait] Null pointer deference in hotspot/src/share/vm/code/nmethod.cpp
morris
parents:
6983
diff
changeset
|
567 } |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
568 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
569 // verify nmethod |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
570 debug_only(if (nm) nm->verify();) // might block |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
571 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
572 if (nm != NULL) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
573 nm->log_new_nmethod(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
574 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
575 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
576 return nm; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
577 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
578 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
579 #endif // def HAVE_DTRACE_H |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
580 |
0 | 581 nmethod* nmethod::new_nmethod(methodHandle method, |
582 int compile_id, | |
583 int entry_bci, | |
584 CodeOffsets* offsets, | |
585 int orig_pc_offset, | |
586 DebugInformationRecorder* debug_info, | |
587 Dependencies* dependencies, | |
588 CodeBuffer* code_buffer, int frame_size, | |
589 OopMapSet* oop_maps, | |
590 ExceptionHandlerTable* handler_table, | |
591 ImplicitExceptionTable* nul_chk_table, | |
592 AbstractCompiler* compiler, | |
593 int comp_level | |
594 ) | |
595 { | |
596 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
597 code_buffer->finalize_oop_references(method); |
0 | 598 // create nmethod |
599 nmethod* nm = NULL; | |
600 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
601 int nmethod_size = | |
602 allocation_size(code_buffer, sizeof(nmethod)) | |
603 + adjust_pcs_size(debug_info->pcs_size()) | |
604 + round_to(dependencies->size_in_bytes() , oopSize) | |
605 + round_to(handler_table->size_in_bytes(), oopSize) | |
606 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
607 + round_to(debug_info->data_size() , oopSize); | |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
608 |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
609 nm = new (nmethod_size) |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
610 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
611 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
612 oop_maps, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
613 handler_table, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
614 nul_chk_table, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
615 compiler, |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
616 comp_level); |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
617 |
0 | 618 if (nm != NULL) { |
619 // To make dependency checking during class loading fast, record | |
620 // the nmethod dependencies in the classes it is dependent on. | |
621 // This allows the dependency checking code to simply walk the | |
622 // class hierarchy above the loaded class, checking only nmethods | |
623 // which are dependent on those classes. The slow way is to | |
624 // check every nmethod for dependencies which makes it linear in | |
625 // the number of methods compiled. For applications with a lot | |
626 // classes the slow way is too slow. | |
627 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
628 Klass* klass = deps.context_type(); |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
629 if (klass == NULL) { |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
630 continue; // ignore things like evol_method |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
631 } |
0 | 632 |
633 // record this nmethod as dependent on this klass | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
634 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
0 | 635 } |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
636 NOT_PRODUCT(nmethod_stats.note_nmethod(nm)); |
14438
4cdf4f71177d
8029025: PPC64 (part 203): opto: Move static _in_dump_cnt to Compile object.
goetz
parents:
14435
diff
changeset
|
637 if (PrintAssembly || CompilerOracle::has_option_string(method, "PrintAssembly")) { |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
638 Disassembler::decode(nm); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
639 } |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
640 } |
0 | 641 } |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
642 // Do verification and logging outside CodeCache_lock. |
0 | 643 if (nm != NULL) { |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
644 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
645 DEBUG_ONLY(nm->verify();) |
0 | 646 nm->log_new_nmethod(); |
647 } | |
648 return nm; | |
649 } | |
650 | |
651 | |
652 // For native wrappers | |
653 nmethod::nmethod( | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
654 Method* method, |
0 | 655 int nmethod_size, |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
656 int compile_id, |
0 | 657 CodeOffsets* offsets, |
658 CodeBuffer* code_buffer, | |
659 int frame_size, | |
660 ByteSize basic_lock_owner_sp_offset, | |
661 ByteSize basic_lock_sp_offset, | |
662 OopMapSet* oop_maps ) | |
663 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
664 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 665 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
666 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
0 | 667 { |
668 { | |
669 debug_only(No_Safepoint_Verifier nsv;) | |
670 assert_locked_or_safepoint(CodeCache_lock); | |
671 | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
672 init_defaults(); |
0 | 673 _method = method; |
674 _entry_bci = InvocationEntryBci; | |
675 // We have no exception handler or deopt handler make the | |
676 // values something that will never match a pc like the nmethod vtable entry | |
677 _exception_offset = 0; | |
678 _deoptimize_offset = 0; | |
1204 | 679 _deoptimize_mh_offset = 0; |
0 | 680 _orig_pc_offset = 0; |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
681 |
1748 | 682 _consts_offset = data_offset(); |
0 | 683 _stub_offset = data_offset(); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
684 _oops_offset = data_offset(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
685 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
686 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
0 | 687 _scopes_pcs_offset = _scopes_data_offset; |
688 _dependencies_offset = _scopes_pcs_offset; | |
689 _handler_table_offset = _dependencies_offset; | |
690 _nul_chk_table_offset = _handler_table_offset; | |
691 _nmethod_end_offset = _nul_chk_table_offset; | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
692 _compile_id = compile_id; |
0 | 693 _comp_level = CompLevel_none; |
1748 | 694 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
695 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
0 | 696 _osr_entry_point = NULL; |
697 _exception_cache = NULL; | |
698 _pc_desc_cache.reset_to(NULL); | |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
699 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
0 | 700 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
701 code_buffer->copy_values_to(this); |
20191
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
702 if (ScavengeRootsInCode) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
703 if (detect_scavenge_root_oops()) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
704 CodeCache::add_scavenge_root_nmethod(this); |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
705 } |
12080 | 706 Universe::heap()->register_nmethod(this); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
707 } |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
708 debug_only(verify_scavenge_root_oops()); |
0 | 709 CodeCache::commit(this); |
710 } | |
711 | |
712 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
713 ttyLocker ttyl; // keep the following output all in one block | |
714 // This output goes directly to the tty, not the compiler log. | |
715 // To enable tools to match it up with the compilation activity, | |
716 // be sure to tag this tty output with the compile ID. | |
717 if (xtty != NULL) { | |
718 xtty->begin_head("print_native_nmethod"); | |
719 xtty->method(_method); | |
720 xtty->stamp(); | |
721 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
722 } | |
723 // print the header part first | |
724 print(); | |
725 // then print the requested information | |
726 if (PrintNativeNMethods) { | |
727 print_code(); | |
6790
2cb2f30450c7
7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents:
6725
diff
changeset
|
728 if (oop_maps != NULL) { |
2cb2f30450c7
7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents:
6725
diff
changeset
|
729 oop_maps->print(); |
2cb2f30450c7
7196262: JSR 292: java/lang/invoke/PrivateInvokeTest.java fails on solaris-sparc
twisti
parents:
6725
diff
changeset
|
730 } |
0 | 731 } |
732 if (PrintRelocations) { | |
733 print_relocations(); | |
734 } | |
735 if (xtty != NULL) { | |
736 xtty->tail("print_native_nmethod"); | |
737 } | |
738 } | |
739 } | |
740 | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
741 // For dtrace wrappers |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
742 #ifdef HAVE_DTRACE_H |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
743 nmethod::nmethod( |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
744 Method* method, |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
745 int nmethod_size, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
746 CodeOffsets* offsets, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
747 CodeBuffer* code_buffer, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
748 int frame_size) |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
749 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
750 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
2019 | 751 _native_receiver_sp_offset(in_ByteSize(-1)), |
752 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
753 { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
754 { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
755 debug_only(No_Safepoint_Verifier nsv;) |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
756 assert_locked_or_safepoint(CodeCache_lock); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
757 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
758 init_defaults(); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
759 _method = method; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
760 _entry_bci = InvocationEntryBci; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
761 // We have no exception handler or deopt handler make the |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
762 // values something that will never match a pc like the nmethod vtable entry |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
763 _exception_offset = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
764 _deoptimize_offset = 0; |
1204 | 765 _deoptimize_mh_offset = 0; |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
766 _unwind_handler_offset = -1; |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
767 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
768 _orig_pc_offset = 0; |
1748 | 769 _consts_offset = data_offset(); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
770 _stub_offset = data_offset(); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
771 _oops_offset = data_offset(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
772 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
773 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
774 _scopes_pcs_offset = _scopes_data_offset; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
775 _dependencies_offset = _scopes_pcs_offset; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
776 _handler_table_offset = _dependencies_offset; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
777 _nul_chk_table_offset = _handler_table_offset; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
778 _nmethod_end_offset = _nul_chk_table_offset; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
779 _compile_id = 0; // default |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
780 _comp_level = CompLevel_none; |
1748 | 781 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
782 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
783 _osr_entry_point = NULL; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
784 _exception_cache = NULL; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
785 _pc_desc_cache.reset_to(NULL); |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
786 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
787 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
788 code_buffer->copy_values_to(this); |
20191
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
789 if (ScavengeRootsInCode) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
790 if (detect_scavenge_root_oops()) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
791 CodeCache::add_scavenge_root_nmethod(this); |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
792 } |
17915
e0a77b91da68
8040085: dtrace/jsdt tests crash on solaris. found an unadvertised bad scavengable oop in the code cache
anoll
parents:
17810
diff
changeset
|
793 Universe::heap()->register_nmethod(this); |
e0a77b91da68
8040085: dtrace/jsdt tests crash on solaris. found an unadvertised bad scavengable oop in the code cache
anoll
parents:
17810
diff
changeset
|
794 } |
e0a77b91da68
8040085: dtrace/jsdt tests crash on solaris. found an unadvertised bad scavengable oop in the code cache
anoll
parents:
17810
diff
changeset
|
795 DEBUG_ONLY(verify_scavenge_root_oops();) |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
796 CodeCache::commit(this); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
797 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
798 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
799 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
800 ttyLocker ttyl; // keep the following output all in one block |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
801 // This output goes directly to the tty, not the compiler log. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
802 // To enable tools to match it up with the compilation activity, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
803 // be sure to tag this tty output with the compile ID. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
804 if (xtty != NULL) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
805 xtty->begin_head("print_dtrace_nmethod"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
806 xtty->method(_method); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
807 xtty->stamp(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
808 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
809 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
810 // print the header part first |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
811 print(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
812 // then print the requested information |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
813 if (PrintNMethods) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
814 print_code(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
815 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
816 if (PrintRelocations) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
817 print_relocations(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
818 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
819 if (xtty != NULL) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
820 xtty->tail("print_dtrace_nmethod"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
821 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
822 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
823 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
100
diff
changeset
|
824 #endif // def HAVE_DTRACE_H |
0 | 825 |
12146
9758d9f36299
8021954: VM SIGSEGV during classloading on MacOS; hs_err_pid file produced
coleenp
parents:
12080
diff
changeset
|
826 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
10114
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
827 // Not critical, may return null if there is too little continuous memory |
a7fb14888912
8006952: Slow VM due to excessive code cache freelist iteration
neliasso
parents:
8864
diff
changeset
|
828 return CodeCache::allocate(nmethod_size); |
0 | 829 } |
830 | |
831 nmethod::nmethod( | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
832 Method* method, |
0 | 833 int nmethod_size, |
834 int compile_id, | |
835 int entry_bci, | |
836 CodeOffsets* offsets, | |
837 int orig_pc_offset, | |
838 DebugInformationRecorder* debug_info, | |
839 Dependencies* dependencies, | |
840 CodeBuffer *code_buffer, | |
841 int frame_size, | |
842 OopMapSet* oop_maps, | |
843 ExceptionHandlerTable* handler_table, | |
844 ImplicitExceptionTable* nul_chk_table, | |
845 AbstractCompiler* compiler, | |
846 int comp_level | |
847 ) | |
848 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
849 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 850 _native_receiver_sp_offset(in_ByteSize(-1)), |
851 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
0 | 852 { |
853 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
854 { | |
855 debug_only(No_Safepoint_Verifier nsv;) | |
856 assert_locked_or_safepoint(CodeCache_lock); | |
857 | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
858 init_defaults(); |
0 | 859 _method = method; |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
860 _entry_bci = entry_bci; |
0 | 861 _compile_id = compile_id; |
862 _comp_level = comp_level; | |
863 _compiler = compiler; | |
864 _orig_pc_offset = orig_pc_offset; | |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
865 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
1748 | 866 |
867 // Section offsets | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
868 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
869 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
0 | 870 |
871 // Exception handler and deopt handler are in the stub section | |
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
872 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
873 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
1748 | 874 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
875 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
876 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
877 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
878 } else { |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
879 _deoptimize_mh_offset = -1; |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
880 } |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
881 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
1748 | 882 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
883 } else { |
1748 | 884 _unwind_handler_offset = -1; |
1378
9f5b60a14736
6939930: exception unwind changes in 6919934 hurts compilation speed
never
parents:
1253
diff
changeset
|
885 } |
1748 | 886 |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
887 _oops_offset = data_offset(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
888 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
889 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
890 |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
891 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
0 | 892 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
893 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
894 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
895 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
896 | |
1748 | 897 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
898 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
899 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
0 | 900 _exception_cache = NULL; |
901 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
902 | |
903 // Copy contents of ScopeDescRecorder to nmethod | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
904 code_buffer->copy_values_to(this); |
0 | 905 debug_info->copy_to(this); |
906 dependencies->copy_to(this); | |
20191
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
907 if (ScavengeRootsInCode) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
908 if (detect_scavenge_root_oops()) { |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
909 CodeCache::add_scavenge_root_nmethod(this); |
fd81a5764900
8046231: G1: Code root location ... from nmethod ... not in strong code roots for region
pliden
parents:
17937
diff
changeset
|
910 } |
12080 | 911 Universe::heap()->register_nmethod(this); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
912 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
913 debug_only(verify_scavenge_root_oops()); |
0 | 914 |
915 CodeCache::commit(this); | |
916 | |
917 // Copy contents of ExceptionHandlerTable to nmethod | |
918 handler_table->copy_to(this); | |
919 nul_chk_table->copy_to(this); | |
920 | |
921 // we use the information of entry points to find out if a method is | |
922 // static or non static | |
923 assert(compiler->is_c2() || | |
924 _method->is_static() == (entry_point() == _verified_entry_point), | |
925 " entry points must be same for static methods and vice versa"); | |
926 } | |
927 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
928 bool printnmethods = PrintNMethods |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
929 || CompilerOracle::should_print(_method) |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
930 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
0 | 931 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
932 print_nmethod(printnmethods); | |
933 } | |
934 } | |
935 | |
936 | |
937 // Print a short set of xml attributes to identify this nmethod. The | |
938 // output should be embedded in some other element. | |
939 void nmethod::log_identity(xmlStream* log) const { | |
940 log->print(" compile_id='%d'", compile_id()); | |
941 const char* nm_kind = compile_kind(); | |
942 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
943 if (compiler() != NULL) { | |
944 log->print(" compiler='%s'", compiler()->name()); | |
945 } | |
1783 | 946 if (TieredCompilation) { |
947 log->print(" level='%d'", comp_level()); | |
948 } | |
0 | 949 } |
950 | |
951 | |
952 #define LOG_OFFSET(log, name) \ | |
953 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
954 log->print(" " XSTR(name) "_offset='%d'" , \ | |
955 (intptr_t)name##_begin() - (intptr_t)this) | |
956 | |
957 | |
958 void nmethod::log_new_nmethod() const { | |
959 if (LogCompilation && xtty != NULL) { | |
960 ttyLocker ttyl; | |
961 HandleMark hm; | |
962 xtty->begin_elem("nmethod"); | |
963 log_identity(xtty); | |
1748 | 964 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
0 | 965 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
966 | |
967 LOG_OFFSET(xtty, relocation); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
968 LOG_OFFSET(xtty, consts); |
1748 | 969 LOG_OFFSET(xtty, insts); |
0 | 970 LOG_OFFSET(xtty, stub); |
971 LOG_OFFSET(xtty, scopes_data); | |
972 LOG_OFFSET(xtty, scopes_pcs); | |
973 LOG_OFFSET(xtty, dependencies); | |
974 LOG_OFFSET(xtty, handler_table); | |
975 LOG_OFFSET(xtty, nul_chk_table); | |
976 LOG_OFFSET(xtty, oops); | |
977 | |
978 xtty->method(method()); | |
979 xtty->stamp(); | |
980 xtty->end_elem(); | |
981 } | |
982 } | |
983 | |
984 #undef LOG_OFFSET | |
985 | |
986 | |
987 // Print out more verbose output usually for a newly created nmethod. | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
988 void nmethod::print_on(outputStream* st, const char* msg) const { |
0 | 989 if (st != NULL) { |
990 ttyLocker ttyl; | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
991 if (WizardMode) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
992 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
993 st->print_cr(" (" INTPTR_FORMAT ")", this); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
994 } else { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
995 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
996 } |
0 | 997 } |
998 } | |
999 | |
1000 | |
1001 void nmethod::print_nmethod(bool printmethod) { | |
1002 ttyLocker ttyl; // keep the following output all in one block | |
1003 if (xtty != NULL) { | |
1004 xtty->begin_head("print_nmethod"); | |
1005 xtty->stamp(); | |
1006 xtty->end_head(); | |
1007 } | |
1008 // print the header part first | |
1009 print(); | |
1010 // then print the requested information | |
1011 if (printmethod) { | |
1012 print_code(); | |
1013 print_pcs(); | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
1014 if (oop_maps()) { |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
1015 oop_maps()->print(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4873
diff
changeset
|
1016 } |
0 | 1017 } |
1018 if (PrintDebugInfo) { | |
1019 print_scopes(); | |
1020 } | |
1021 if (PrintRelocations) { | |
1022 print_relocations(); | |
1023 } | |
1024 if (PrintDependencies) { | |
1025 print_dependencies(); | |
1026 } | |
1027 if (PrintExceptionHandlers) { | |
1028 print_handler_table(); | |
1029 print_nul_chk_table(); | |
1030 } | |
1031 if (xtty != NULL) { | |
1032 xtty->tail("print_nmethod"); | |
1033 } | |
1034 } | |
1035 | |
1036 | |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1037 // Promote one word from an assembly-time handle to a live embedded oop. |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1038 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1039 if (handle == NULL || |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1040 // As a special case, IC oops are initialized to 1 or -1. |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1041 handle == (jobject) Universe::non_oop_word()) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1042 (*dest) = (oop) handle; |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1043 } else { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1044 (*dest) = JNIHandles::resolve_non_null(handle); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1045 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1046 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1047 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1048 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1049 // Have to have the same name because it's called by a template |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1050 void nmethod::copy_values(GrowableArray<jobject>* array) { |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1051 int length = array->length(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1052 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1053 oop* dest = oops_begin(); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1054 for (int index = 0 ; index < length; index++) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1055 initialize_immediate_oop(&dest[index], array->at(index)); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1056 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1057 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1058 // Now we can fix up all the oops in the code. We need to do this |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1059 // in the code because the assembler uses jobjects as placeholders. |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1060 // The code and relocations have already been initialized by the |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1061 // CodeBlob constructor, so it is valid even at this early point to |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1062 // iterate over relocations and patch the code. |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1063 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1064 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1065 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1066 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1067 int length = array->length(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1068 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1069 Metadata** dest = metadata_begin(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1070 for (int index = 0 ; index < length; index++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1071 dest[index] = array->at(index); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1072 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1073 } |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1074 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1075 bool nmethod::is_at_poll_return(address pc) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1076 RelocIterator iter(this, pc, pc+1); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1077 while (iter.next()) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1078 if (iter.type() == relocInfo::poll_return_type) |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1079 return true; |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1080 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1081 return false; |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1082 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1083 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1084 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1085 bool nmethod::is_at_poll_or_poll_return(address pc) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1086 RelocIterator iter(this, pc, pc+1); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1087 while (iter.next()) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1088 relocInfo::relocType t = iter.type(); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1089 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1090 return true; |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1091 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1092 return false; |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1093 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1094 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1095 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1096 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1097 // re-patch all oop-bearing instructions, just in case some oops moved |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1098 RelocIterator iter(this, begin, end); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1099 while (iter.next()) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1100 if (iter.type() == relocInfo::oop_type) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1101 oop_Relocation* reloc = iter.oop_reloc(); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1102 if (initialize_immediates && reloc->oop_is_immediate()) { |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1103 oop* dest = reloc->oop_addr(); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1104 initialize_immediate_oop(dest, (jobject) *dest); |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1105 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1106 // Refresh the oop-related bits of this instruction. |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1107 reloc->fix_oop_relocation(); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1108 } else if (iter.type() == relocInfo::metadata_type) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1109 metadata_Relocation* reloc = iter.metadata_reloc(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1110 reloc->fix_metadata_relocation(); |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1111 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1112 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1113 } |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1114 |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
1115 |
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1116 void nmethod::verify_oop_relocations() { |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1117 // Ensure sure that the code matches the current oop values |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1118 RelocIterator iter(this, NULL, NULL); |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1119 while (iter.next()) { |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1120 if (iter.type() == relocInfo::oop_type) { |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1121 oop_Relocation* reloc = iter.oop_reloc(); |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1122 if (!reloc->oop_is_immediate()) { |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1123 reloc->verify_oop_relocation(); |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1124 } |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1125 } |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1126 } |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1127 } |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1128 |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2360
diff
changeset
|
1129 |
0 | 1130 ScopeDesc* nmethod::scope_desc_at(address pc) { |
1131 PcDesc* pd = pc_desc_at(pc); | |
1132 guarantee(pd != NULL, "scope must be present"); | |
1133 return new ScopeDesc(this, pd->scope_decode_offset(), | |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1134 pd->obj_decode_offset(), pd->should_reexecute(), |
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
1135 pd->return_oop()); |
0 | 1136 } |
1137 | |
1138 | |
1139 void nmethod::clear_inline_caches() { | |
1140 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
1141 if (is_zombie()) { | |
1142 return; | |
1143 } | |
1144 | |
1145 RelocIterator iter(this); | |
1146 while (iter.next()) { | |
1147 iter.reloc()->clear_inline_cache(); | |
1148 } | |
1149 } | |
1150 | |
23426
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1151 // Clear ICStubs of all compiled ICs |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1152 void nmethod::clear_ic_stubs() { |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1153 assert_locked_or_safepoint(CompiledIC_lock); |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1154 RelocIterator iter(this); |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1155 while(iter.next()) { |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1156 if (iter.type() == relocInfo::virtual_call_type) { |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1157 CompiledIC* ic = CompiledIC_at(&iter); |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1158 ic->clear_ic_stub(); |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1159 } |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1160 } |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1161 } |
682119c4c32e
8058737: CodeCache::find_blob fails with 'unsafe access to zombie method'
thartmann
parents:
20619
diff
changeset
|
1162 |
0 | 1163 |
1164 void nmethod::cleanup_inline_caches() { | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1165 assert_locked_or_safepoint(CompiledIC_lock); |
0 | 1166 |
1167 // If the method is not entrant or zombie then a JMP is plastered over the | |
1168 // first few bytes. If an oop in the old code was there, that oop | |
1169 // should not get GC'd. Skip the first few bytes of oops on | |
1170 // not-entrant methods. | |
1171 address low_boundary = verified_entry_point(); | |
1172 if (!is_in_use()) { | |
1173 low_boundary += NativeJump::instruction_size; | |
1174 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1175 // This means that the low_boundary is going to be a little too high. | |
1176 // This shouldn't matter, since oops of non-entrant methods are never used. | |
1177 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
1178 } | |
1179 | |
23427
c1950f51ed60
8075805: Crash while trying to release CompiledICHolder
thartmann
parents:
23426
diff
changeset
|
1180 // Find all calls in an nmethod and clear the ones that point to non-entrant, |
c1950f51ed60
8075805: Crash while trying to release CompiledICHolder
thartmann
parents:
23426
diff
changeset
|
1181 // zombie and unloaded nmethods. |
0 | 1182 ResourceMark rm; |
1183 RelocIterator iter(this, low_boundary); | |
1184 while(iter.next()) { | |
1185 switch(iter.type()) { | |
1186 case relocInfo::virtual_call_type: | |
1187 case relocInfo::opt_virtual_call_type: { | |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
1188 CompiledIC *ic = CompiledIC_at(&iter); |
0 | 1189 // Ok, to lookup references to zombies here |
1190 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
1191 if( cb != NULL && cb->is_nmethod() ) { | |
1192 nmethod* nm = (nmethod*)cb; | |
23427
c1950f51ed60
8075805: Crash while trying to release CompiledICHolder
thartmann
parents:
23426
diff
changeset
|
1193 // Clean inline caches pointing to zombie, non-entrant and unloaded methods |
23428
be740540f60c
8134493: Cleaning inline caches of unloaded nmethods should be done in sweeper
thartmann
parents:
23427
diff
changeset
|
1194 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(is_alive()); |
0 | 1195 } |
1196 break; | |
1197 } | |
1198 case relocInfo::static_call_type: { | |
1199 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
1200 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
1201 if( cb != NULL && cb->is_nmethod() ) { | |
1202 nmethod* nm = (nmethod*)cb; | |
23427
c1950f51ed60
8075805: Crash while trying to release CompiledICHolder
thartmann
parents:
23426
diff
changeset
|
1203 // Clean inline caches pointing to zombie, non-entrant and unloaded methods |
1202 | 1204 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
0 | 1205 } |
1206 break; | |
1207 } | |
1208 } | |
1209 } | |
1210 } | |
1211 | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1212 void nmethod::verify_clean_inline_caches() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1213 assert_locked_or_safepoint(CompiledIC_lock); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1214 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1215 // If the method is not entrant or zombie then a JMP is plastered over the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1216 // first few bytes. If an oop in the old code was there, that oop |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1217 // should not get GC'd. Skip the first few bytes of oops on |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1218 // not-entrant methods. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1219 address low_boundary = verified_entry_point(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1220 if (!is_in_use()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1221 low_boundary += NativeJump::instruction_size; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1222 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1223 // This means that the low_boundary is going to be a little too high. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1224 // This shouldn't matter, since oops of non-entrant methods are never used. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1225 // In fact, why are we bothering to look at oops in a non-entrant method?? |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1226 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1227 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1228 ResourceMark rm; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1229 RelocIterator iter(this, low_boundary); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1230 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1231 switch(iter.type()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1232 case relocInfo::virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1233 case relocInfo::opt_virtual_call_type: { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1234 CompiledIC *ic = CompiledIC_at(&iter); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1235 // Ok, to lookup references to zombies here |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1236 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1237 if( cb != NULL && cb->is_nmethod() ) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1238 nmethod* nm = (nmethod*)cb; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1239 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1240 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1241 assert(ic->is_clean(), "IC should be clean"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1242 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1243 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1244 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1245 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1246 case relocInfo::static_call_type: { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1247 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1248 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1249 if( cb != NULL && cb->is_nmethod() ) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1250 nmethod* nm = (nmethod*)cb; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1251 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1252 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1253 assert(csc->is_clean(), "IC should be clean"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1254 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1255 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1256 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1257 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1258 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1259 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1260 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1261 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1262 int nmethod::verify_icholder_relocations() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1263 int count = 0; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1264 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1265 RelocIterator iter(this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1266 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1267 if (iter.type() == relocInfo::virtual_call_type) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1268 if (CompiledIC::is_icholder_call_site(iter.virtual_call_reloc())) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1269 CompiledIC *ic = CompiledIC_at(&iter); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1270 if (TraceCompiledIC) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1271 tty->print("noticed icholder " INTPTR_FORMAT " ", p2i(ic->cached_icholder())); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1272 ic->print(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1273 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1274 assert(ic->cached_icholder() != NULL, "must be non-NULL"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1275 count++; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1276 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1277 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1278 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1279 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1280 return count; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1281 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1282 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1283 // This is a private interface with the sweeper. |
0 | 1284 void nmethod::mark_as_seen_on_stack() { |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1285 assert(is_alive(), "Must be an alive method"); |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1286 // Set the traversal mark to ensure that the sweeper does 2 |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1287 // cleaning passes before moving to zombie. |
0 | 1288 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
1289 } | |
1290 | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1291 // Tell if a non-entrant method can be converted to a zombie (i.e., |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1292 // there are no activations on the stack, not in use by the VM, |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1293 // and not in use by the ServiceThread) |
23428
be740540f60c
8134493: Cleaning inline caches of unloaded nmethods should be done in sweeper
thartmann
parents:
23427
diff
changeset
|
1294 bool nmethod::can_convert_to_zombie() { |
0 | 1295 assert(is_not_entrant(), "must be a non-entrant method"); |
1296 | |
1297 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
1298 // count can be greater than the stack traversal count before it hits the | |
1299 // nmethod for the second time. | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1300 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1301 !is_locked_by_vm(); |
0 | 1302 } |
1303 | |
1304 void nmethod::inc_decompile_count() { | |
1783 | 1305 if (!is_compiled_by_c2()) return; |
0 | 1306 // Could be gated by ProfileTraps, but do not bother... |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1307 Method* m = method(); |
0 | 1308 if (m == NULL) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1309 MethodData* mdo = m->method_data(); |
0 | 1310 if (mdo == NULL) return; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1311 // There is a benign race here. See comments in methodData.hpp. |
0 | 1312 mdo->inc_decompile_count(); |
1313 } | |
1314 | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1315 void nmethod::increase_unloading_clock() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1316 _global_unloading_clock++; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1317 if (_global_unloading_clock == 0) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1318 // _nmethods are allocated with _unloading_clock == 0, |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1319 // so 0 is never used as a clock value. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1320 _global_unloading_clock = 1; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1321 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1322 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1323 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1324 void nmethod::set_unloading_clock(unsigned char unloading_clock) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1325 OrderAccess::release_store((volatile jubyte*)&_unloading_clock, unloading_clock); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1326 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1327 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1328 unsigned char nmethod::unloading_clock() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1329 return (unsigned char)OrderAccess::load_acquire((volatile jubyte*)&_unloading_clock); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1330 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1331 |
0 | 1332 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { |
1333 | |
1334 post_compiled_method_unload(); | |
1335 | |
1336 // Since this nmethod is being unloaded, make sure that dependencies | |
1337 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
1338 // indicate that this work is being done during a GC. | |
1339 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
1340 assert(is_alive != NULL, "Should be non-NULL"); | |
1341 // A non-NULL is_alive closure indicates that this is being called during GC. | |
1342 flush_dependencies(is_alive); | |
1343 | |
1344 // Break cycle between nmethod & method | |
1345 if (TraceClassUnloading && WizardMode) { | |
1346 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1347 " unloadable], Method*(" INTPTR_FORMAT |
0 | 1348 "), cause(" INTPTR_FORMAT ")", |
1349 this, (address)_method, (address)cause); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1350 if (!Universe::heap()->is_gc_active()) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1351 cause->klass()->print(); |
0 | 1352 } |
941 | 1353 // Unlink the osr method, so we do not look this up again |
1354 if (is_osr_method()) { | |
1355 invalidate_osr_method(); | |
1356 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1357 // If _method is already NULL the Method* is about to be unloaded, |
0 | 1358 // so we don't have to break the cycle. Note that it is possible to |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1359 // have the Method* live here, in case we unload the nmethod because |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1360 // it is pointing to some oop (other than the Method*) being unloaded. |
0 | 1361 if (_method != NULL) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1362 // OSR methods point to the Method*, but the Method* does not |
0 | 1363 // point back! |
1364 if (_method->code() == this) { | |
1365 _method->clear_code(); // Break a cycle | |
1366 } | |
1367 _method = NULL; // Clear the method of this dead nmethod | |
1368 } | |
1369 // Make the class unloaded - i.e., change state and notify sweeper | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1370 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 1371 if (is_in_use()) { |
1372 // Transitioning directly from live to unloaded -- so | |
1373 // we need to force a cache clean-up; remember this | |
1374 // for later on. | |
1375 CodeCache::set_needs_cache_clean(true); | |
1376 } | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1377 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1378 // Unregister must be done before the state change |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1379 Universe::heap()->unregister_nmethod(this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1380 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1381 _state = unloaded; |
0 | 1382 |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1383 // Log the unloading. |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1384 log_state_change(); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1385 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1386 // The Method* is gone at this point |
0 | 1387 assert(_method == NULL, "Tautology"); |
1388 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1389 set_osr_link(NULL); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1390 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1391 NMethodSweeper::report_state_change(this); |
0 | 1392 } |
1393 | |
1394 void nmethod::invalidate_osr_method() { | |
1395 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
1396 // Remove from list of active nmethods | |
1397 if (method() != NULL) | |
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
6806
diff
changeset
|
1398 method()->method_holder()->remove_osr_nmethod(this); |
0 | 1399 // Set entry as invalid |
1400 _entry_bci = InvalidOSREntryBci; | |
1401 } | |
1402 | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1403 void nmethod::log_state_change() const { |
0 | 1404 if (LogCompilation) { |
1405 if (xtty != NULL) { | |
1406 ttyLocker ttyl; // keep the following output all in one block | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1407 if (_state == unloaded) { |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1408 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1409 os::current_thread_id()); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1410 } else { |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1411 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1412 os::current_thread_id(), |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1413 (_state == zombie ? " zombie='1'" : "")); |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1414 } |
0 | 1415 log_identity(xtty); |
1416 xtty->stamp(); | |
1417 xtty->end_elem(); | |
1418 } | |
1419 } | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1420 if (PrintCompilation && _state != unloaded) { |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
1421 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
0 | 1422 } |
1423 } | |
1424 | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1425 /** |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1426 * Common functionality for both make_not_entrant and make_zombie |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1427 */ |
1141 | 1428 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
0 | 1429 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1430 assert(!is_zombie(), "should not already be a zombie"); |
0 | 1431 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1432 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
0 | 1433 nmethodLocker nml(this); |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1434 methodHandle the_method(method()); |
1726 | 1435 No_Safepoint_Verifier nsv; |
0 | 1436 |
12080 | 1437 // during patching, depending on the nmethod state we must notify the GC that |
1438 // code has been unloaded, unregistering it. We cannot do this right while | |
1439 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
1440 // would be prone to deadlocks. | |
1441 // This flag is used to remember whether we need to later lock and unregister. | |
1442 bool nmethod_needs_unregister = false; | |
1443 | |
0 | 1444 { |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1445 // invalidate osr nmethod before acquiring the patching lock since |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1446 // they both acquire leaf locks and we don't want a deadlock. |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1447 // This logic is equivalent to the logic below for patching the |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1448 // verified entry point of regular methods. |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1449 if (is_osr_method()) { |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1450 // this effectively makes the osr nmethod not entrant |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1451 invalidate_osr_method(); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1452 } |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1453 |
0 | 1454 // Enter critical section. Does not block for safepoint. |
1455 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1456 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1457 if (_state == state) { |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1458 // another thread already performed this transition so nothing |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1459 // to do, but return false to indicate this. |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1460 return false; |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1461 } |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1462 |
0 | 1463 // The caller can be calling the method statically or through an inline |
1464 // cache call. | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1465 if (!is_osr_method() && !is_not_entrant()) { |
0 | 1466 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
1467 SharedRuntime::get_handle_wrong_method_stub()); | |
1468 } | |
1469 | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1470 if (is_in_use()) { |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1471 // It's a true state change, so mark the method as decompiled. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1472 // Do it only for transition from alive. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1473 inc_decompile_count(); |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1474 } |
1206
87684f1a88b5
6614597: Performance variability in jvm2008 xml.validation
kvn
parents:
1204
diff
changeset
|
1475 |
12080 | 1476 // If the state is becoming a zombie, signal to unregister the nmethod with |
1477 // the heap. | |
1478 // This nmethod may have already been unloaded during a full GC. | |
1479 if ((state == zombie) && !is_unloaded()) { | |
1480 nmethod_needs_unregister = true; | |
1481 } | |
1482 | |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1483 // Must happen before state change. Otherwise we have a race condition in |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1484 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1485 // transition its state from 'not_entrant' to 'zombie' without having to wait |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1486 // for stack scanning. |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1487 if (state == not_entrant) { |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1488 mark_as_seen_on_stack(); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1489 OrderAccess::storestore(); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1490 } |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1491 |
0 | 1492 // Change state |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1493 _state = state; |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1494 |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1495 // Log the transition once |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1496 log_state_change(); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1497 |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1498 // Remove nmethod from method. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1499 // We need to check if both the _code and _from_compiled_code_entry_point |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1500 // refer to this nmethod because there is a race in setting these two fields |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1501 // in Method* as seen in bugid 4947125. |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1502 // If the vep() points to the zombie nmethod, the memory for the nmethod |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1503 // could be flushed and the compiler and vtable stubs could still call |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1504 // through it. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1505 if (method() != NULL && (method()->code() == this || |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1506 method()->from_compiled_entry() == verified_entry_point())) { |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1507 HandleMark hm; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1508 method()->clear_code(); |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1509 } |
0 | 1510 } // leave critical region under Patching_lock |
1511 | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1512 // When the nmethod becomes zombie it is no longer alive so the |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1513 // dependencies must be flushed. nmethods in the not_entrant |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1514 // state will be flushed later when the transition to zombie |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1515 // happens or they get unloaded. |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1516 if (state == zombie) { |
1726 | 1517 { |
1518 // Flushing dependecies must be done before any possible | |
1519 // safepoint can sneak in, otherwise the oops used by the | |
1520 // dependency logic could have become stale. | |
1521 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
12080 | 1522 if (nmethod_needs_unregister) { |
1523 Universe::heap()->unregister_nmethod(this); | |
1524 } | |
1726 | 1525 flush_dependencies(NULL); |
1526 } | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1527 |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1528 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1529 // event and it hasn't already been reported for this nmethod then |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1530 // report it now. The event may have been reported earilier if the GC |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1531 // marked it for unloading). JvmtiDeferredEventQueue support means |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1532 // we no longer go to a safepoint here. |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1533 post_compiled_method_unload(); |
1726 | 1534 |
1535 #ifdef ASSERT | |
1536 // It's no longer safe to access the oops section since zombie | |
1537 // nmethods aren't scanned for GC. | |
1538 _oops_are_stale = true; | |
1539 #endif | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1540 // the Method may be reclaimed by class unloading now that the |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1541 // nmethod is in zombie state |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1542 set_method(NULL); |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1543 } else { |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1544 assert(state == not_entrant, "other cases may need to be handled differently"); |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1545 } |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1546 |
0 | 1547 if (TraceCreateZombies) { |
1548 tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie"); | |
1549 } | |
1550 | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1551 NMethodSweeper::report_state_change(this); |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1552 return true; |
0 | 1553 } |
1554 | |
1555 void nmethod::flush() { | |
1556 // Note that there are no valid oops in the nmethod anymore. | |
1557 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
1558 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
1559 | |
1560 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1561 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1562 |
1563 // completely deallocate this method | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1564 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
0 | 1565 if (PrintMethodFlushing) { |
1202 | 1566 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
1567 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
0 | 1568 } |
1569 | |
1570 // We need to deallocate any ExceptionCache data. | |
1571 // Note that we do not need to grab the nmethod lock for this, it | |
1572 // better be thread safe if we're disposing of it! | |
1573 ExceptionCache* ec = exception_cache(); | |
1574 set_exception_cache(NULL); | |
1575 while(ec != NULL) { | |
1576 ExceptionCache* next = ec->next(); | |
1577 delete ec; | |
1578 ec = next; | |
1579 } | |
1580 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1581 if (on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1582 CodeCache::drop_scavenge_root_nmethod(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1583 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1584 |
1692 | 1585 #ifdef SHARK |
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1586 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
1692 | 1587 #endif // SHARK |
1588 | |
0 | 1589 ((CodeBlob*)(this))->flush(); |
1590 | |
1591 CodeCache::free(this); | |
1592 } | |
1593 | |
1594 | |
1595 // | |
1596 // Notify all classes this nmethod is dependent on that it is no | |
1597 // longer dependent. This should only be called in two situations. | |
1598 // First, when a nmethod transitions to a zombie all dependents need | |
1599 // to be clear. Since zombification happens at a safepoint there's no | |
1600 // synchronization issues. The second place is a little more tricky. | |
1601 // During phase 1 of mark sweep class unloading may happen and as a | |
1602 // result some nmethods may get unloaded. In this case the flushing | |
1603 // of dependencies must happen during phase 1 since after GC any | |
1604 // dependencies in the unloaded nmethod won't be updated, so | |
1605 // traversing the dependency information in unsafe. In that case this | |
1606 // function is called with a non-NULL argument and this function only | |
1607 // notifies instanceKlasses that are reachable | |
1608 | |
1609 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1610 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1611 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
1612 "is_alive is non-NULL if and only if we are called during GC"); | |
1613 if (!has_flushed_dependencies()) { | |
1614 set_has_flushed_dependencies(); | |
1615 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1616 Klass* klass = deps.context_type(); |
0 | 1617 if (klass == NULL) continue; // ignore things like evol_method |
1618 | |
1619 // During GC the is_alive closure is non-NULL, and is used to | |
1620 // determine liveness of dependees that need to be updated. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1621 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1622 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
0 | 1623 } |
1624 } | |
1625 } | |
1626 } | |
1627 | |
1628 | |
1629 // If this oop is not live, the nmethod can be unloaded. | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1630 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
0 | 1631 assert(root != NULL, "just checking"); |
1632 oop obj = *root; | |
1633 if (obj == NULL || is_alive->do_object_b(obj)) { | |
1634 return false; | |
1635 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1636 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1637 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1638 // simply because one of its constant oops has gone dead. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1639 // No actual classes need to be unloaded in order for this to occur. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1640 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
0 | 1641 make_unloaded(is_alive, obj); |
1642 return true; | |
1643 } | |
1644 | |
1645 // ------------------------------------------------------------------ | |
1646 // post_compiled_method_load_event | |
1647 // new method for install_code() path | |
1648 // Transfer information from compilation to jvmti | |
1649 void nmethod::post_compiled_method_load_event() { | |
1650 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1651 Method* moop = method(); |
4006 | 1652 #ifndef USDT2 |
0 | 1653 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
1654 moop->klass_name()->bytes(), | |
1655 moop->klass_name()->utf8_length(), | |
1656 moop->name()->bytes(), | |
1657 moop->name()->utf8_length(), | |
1658 moop->signature()->bytes(), | |
1659 moop->signature()->utf8_length(), | |
1748 | 1660 insts_begin(), insts_size()); |
4006 | 1661 #else /* USDT2 */ |
1662 HOTSPOT_COMPILED_METHOD_LOAD( | |
1663 (char *) moop->klass_name()->bytes(), | |
1664 moop->klass_name()->utf8_length(), | |
1665 (char *) moop->name()->bytes(), | |
1666 moop->name()->utf8_length(), | |
1667 (char *) moop->signature()->bytes(), | |
1668 moop->signature()->utf8_length(), | |
1669 insts_begin(), insts_size()); | |
1670 #endif /* USDT2 */ | |
0 | 1671 |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1672 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
|
1673 JvmtiExport::should_post_compiled_method_unload()) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1674 get_and_cache_jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1675 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1676 |
0 | 1677 if (JvmtiExport::should_post_compiled_method_load()) { |
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1678 // 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
parents:
2177
diff
changeset
|
1679 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"
kamg
parents:
2177
diff
changeset
|
1680 JvmtiDeferredEventQueue::enqueue( |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1681 JvmtiDeferredEvent::compiled_method_load_event(this)); |
0 | 1682 } |
1683 } | |
1684 | |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1685 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
|
1686 if (_jmethod_id == NULL) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1687 // 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
|
1688 // 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
|
1689 _jmethod_id = method()->jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1690 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1691 return _jmethod_id; |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1692 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1693 |
0 | 1694 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
|
1695 if (unload_reported()) { |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1696 // 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
|
1697 // 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
|
1698 return; |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1699 } |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1700 |
0 | 1701 assert(_method != NULL && !is_unloaded(), "just checking"); |
1702 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
1703 | |
1704 // 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
|
1705 // post the event. Sometime later this nmethod will be made a zombie |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1706 // 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
|
1707 // 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
|
1708 // so don't bother posting the unload. The main reason for this is |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1709 // 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
|
1710 // 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
|
1711 // ref will have been cleared. |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1712 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
0 | 1713 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
|
1714 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
|
1715 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
|
1716 _jmethod_id, insts_begin()); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1717 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
|
1718 // 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
|
1719 // it will get enqueued later. |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1720 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
|
1721 } else { |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1722 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"
kamg
parents:
2177
diff
changeset
|
1723 JvmtiDeferredEventQueue::enqueue(event); |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1724 } |
0 | 1725 } |
1726 | |
1727 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
1728 // any time. As the nmethod is being unloaded now we mark it has | |
1729 // having the unload event reported - this will ensure that we don't | |
1730 // attempt to report the event in the unlikely scenario where the | |
1731 // event is enabled at the time the nmethod is made a zombie. | |
1732 set_unload_reported(); | |
1733 } | |
1734 | |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1735 void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive, bool mark_on_stack) { |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1736 if (ic->is_icholder_call()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1737 // The only exception is compiledICHolder oops which may |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1738 // yet be marked below. (We check this further below). |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1739 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1740 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1741 if (mark_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1742 Metadata::mark_on_stack(cichk_oop->holder_method()); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1743 Metadata::mark_on_stack(cichk_oop->holder_klass()); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1744 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1745 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1746 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1747 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1748 return; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1749 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1750 } else { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1751 Metadata* ic_oop = ic->cached_metadata(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1752 if (ic_oop != NULL) { |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1753 if (mark_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1754 Metadata::mark_on_stack(ic_oop); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1755 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1756 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1757 if (ic_oop->is_klass()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1758 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1759 return; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1760 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1761 } else if (ic_oop->is_method()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1762 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1763 return; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1764 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1765 } else { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1766 ShouldNotReachHere(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1767 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1768 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1769 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1770 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1771 ic->set_to_clean(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1772 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1773 |
0 | 1774 // This is called at the end of the strong tracing/marking phase of a |
1775 // GC to unload an nmethod if it contains otherwise unreachable | |
1776 // oops. | |
1777 | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1778 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
0 | 1779 // Make sure the oop's ready to receive visitors |
1780 assert(!is_zombie() && !is_unloaded(), | |
1781 "should not call follow on zombie or unloaded nmethod"); | |
1782 | |
1783 // If the method is not entrant then a JMP is plastered over the | |
1784 // first few bytes. If an oop in the old code was there, that oop | |
1785 // should not get GC'd. Skip the first few bytes of oops on | |
1786 // not-entrant methods. | |
1787 address low_boundary = verified_entry_point(); | |
1788 if (is_not_entrant()) { | |
1789 low_boundary += NativeJump::instruction_size; | |
1790 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1791 // (See comment above.) | |
1792 } | |
1793 | |
1794 // The RedefineClasses() API can cause the class unloading invariant | |
1795 // to no longer be true. See jvmtiExport.hpp for details. | |
1796 // Also, leave a debugging breadcrumb in local flag. | |
1797 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
1798 if (a_class_was_redefined) { | |
1799 // This set of the unloading_occurred flag is done before the | |
1800 // call to post_compiled_method_unload() so that the unloading | |
1801 // of this nmethod is reported. | |
1802 unloading_occurred = true; | |
1803 } | |
1804 | |
1805 // Exception cache | |
20269 | 1806 clean_exception_cache(is_alive); |
0 | 1807 |
1808 // If class unloading occurred we first iterate over all inline caches and | |
1809 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
1810 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
1811 // iteration below. | |
1812 if (unloading_occurred) { | |
1813 RelocIterator iter(this, low_boundary); | |
1814 while(iter.next()) { | |
1815 if (iter.type() == relocInfo::virtual_call_type) { | |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
1816 CompiledIC *ic = CompiledIC_at(&iter); |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1817 clean_ic_if_metadata_is_dead(ic, is_alive, false); |
0 | 1818 } |
1819 } | |
1820 } | |
1821 | |
1822 // Compiled code | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1823 { |
0 | 1824 RelocIterator iter(this, low_boundary); |
1825 while (iter.next()) { | |
1826 if (iter.type() == relocInfo::oop_type) { | |
1827 oop_Relocation* r = iter.oop_reloc(); | |
1828 // In this loop, we must only traverse those oops directly embedded in | |
1829 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
1830 assert(1 == (r->oop_is_immediate()) + | |
1831 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1832 "oop must be found in exactly one place"); | |
1833 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1834 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
0 | 1835 return; |
1836 } | |
1837 } | |
1838 } | |
1839 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1840 } |
0 | 1841 |
1842 | |
1843 // Scopes | |
1844 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
1845 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1846 if (can_unload(is_alive, p, unloading_occurred)) { |
0 | 1847 return; |
1848 } | |
1849 } | |
1850 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1851 // Ensure that all metadata is still alive |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1852 verify_metadata_loaders(low_boundary, is_alive); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1853 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1854 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1855 template <class CompiledICorStaticCall> |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1856 static bool clean_if_nmethod_is_unloaded(CompiledICorStaticCall *ic, address addr, BoolObjectClosure *is_alive, nmethod* from) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1857 // Ok, to lookup references to zombies here |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1858 CodeBlob *cb = CodeCache::find_blob_unsafe(addr); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1859 if (cb != NULL && cb->is_nmethod()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1860 nmethod* nm = (nmethod*)cb; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1861 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1862 if (nm->unloading_clock() != nmethod::global_unloading_clock()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1863 // The nmethod has not been processed yet. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1864 return true; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1865 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1866 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1867 // Clean inline caches pointing to both zombie and not_entrant methods |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1868 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1869 ic->set_to_clean(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1870 assert(ic->is_clean(), err_msg("nmethod " PTR_FORMAT "not clean %s", from, from->method()->name_and_sig_as_C_string())); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1871 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1872 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1873 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1874 return false; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1875 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1876 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1877 static bool clean_if_nmethod_is_unloaded(CompiledIC *ic, BoolObjectClosure *is_alive, nmethod* from) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1878 return clean_if_nmethod_is_unloaded(ic, ic->ic_destination(), is_alive, from); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1879 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1880 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1881 static bool clean_if_nmethod_is_unloaded(CompiledStaticCall *csc, BoolObjectClosure *is_alive, nmethod* from) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1882 return clean_if_nmethod_is_unloaded(csc, csc->destination(), is_alive, from); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1883 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1884 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1885 bool nmethod::unload_if_dead_at(RelocIterator* iter_at_oop, BoolObjectClosure *is_alive, bool unloading_occurred) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1886 assert(iter_at_oop->type() == relocInfo::oop_type, "Wrong relocation type"); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1887 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1888 oop_Relocation* r = iter_at_oop->oop_reloc(); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1889 // Traverse those oops directly embedded in the code. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1890 // Other oops (oop_index>0) are seen as part of scopes_oops. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1891 assert(1 == (r->oop_is_immediate()) + |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1892 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1893 "oop must be found in exactly one place"); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1894 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1895 // Unload this nmethod if the oop is dead. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1896 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1897 return true;; |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1898 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1899 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1900 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1901 return false; |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1902 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1903 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1904 void nmethod::mark_metadata_on_stack_at(RelocIterator* iter_at_metadata) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1905 assert(iter_at_metadata->type() == relocInfo::metadata_type, "Wrong relocation type"); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1906 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1907 metadata_Relocation* r = iter_at_metadata->metadata_reloc(); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1908 // In this metadata, we must only follow those metadatas directly embedded in |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1909 // the code. Other metadatas (oop_index>0) are seen as part of |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1910 // the metadata section below. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1911 assert(1 == (r->metadata_is_immediate()) + |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1912 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1913 "metadata must be found in exactly one place"); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1914 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1915 Metadata* md = r->metadata_value(); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1916 if (md != _method) Metadata::mark_on_stack(md); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1917 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1918 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1919 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1920 void nmethod::mark_metadata_on_stack_non_relocs() { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1921 // Visit the metadata section |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1922 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1923 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1924 Metadata* md = *p; |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1925 Metadata::mark_on_stack(md); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1926 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1927 |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1928 // Visit metadata not embedded in the other places. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1929 if (_method != NULL) Metadata::mark_on_stack(_method); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1930 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1931 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1932 bool nmethod::do_unloading_parallel(BoolObjectClosure* is_alive, bool unloading_occurred) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1933 ResourceMark rm; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1934 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1935 // Make sure the oop's ready to receive visitors |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1936 assert(!is_zombie() && !is_unloaded(), |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1937 "should not call follow on zombie or unloaded nmethod"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1938 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1939 // If the method is not entrant then a JMP is plastered over the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1940 // first few bytes. If an oop in the old code was there, that oop |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1941 // should not get GC'd. Skip the first few bytes of oops on |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1942 // not-entrant methods. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1943 address low_boundary = verified_entry_point(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1944 if (is_not_entrant()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1945 low_boundary += NativeJump::instruction_size; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1946 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1947 // (See comment above.) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1948 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1949 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1950 // The RedefineClasses() API can cause the class unloading invariant |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1951 // to no longer be true. See jvmtiExport.hpp for details. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1952 // Also, leave a debugging breadcrumb in local flag. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1953 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1954 if (a_class_was_redefined) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1955 // This set of the unloading_occurred flag is done before the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1956 // call to post_compiled_method_unload() so that the unloading |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1957 // of this nmethod is reported. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1958 unloading_occurred = true; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1959 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1960 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1961 // When class redefinition is used all metadata in the CodeCache has to be recorded, |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1962 // so that unused "previous versions" can be purged. Since walking the CodeCache can |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1963 // be expensive, the "mark on stack" is piggy-backed on this parallel unloading code. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1964 bool mark_metadata_on_stack = a_class_was_redefined; |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1965 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1966 // Exception cache |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1967 clean_exception_cache(is_alive); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1968 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1969 bool is_unloaded = false; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1970 bool postponed = false; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1971 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1972 RelocIterator iter(this, low_boundary); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1973 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1974 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1975 switch (iter.type()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1976 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1977 case relocInfo::virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1978 if (unloading_occurred) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1979 // If class unloading occurred we first iterate over all inline caches and |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1980 // clear ICs where the cached oop is referring to an unloaded klass or method. |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1981 clean_ic_if_metadata_is_dead(CompiledIC_at(&iter), is_alive, mark_metadata_on_stack); |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1982 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1983 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1984 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1985 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1986 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1987 case relocInfo::opt_virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1988 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1989 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1990 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1991 case relocInfo::static_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1992 postponed |= clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1993 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1994 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1995 case relocInfo::oop_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1996 if (!is_unloaded) { |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
1997 is_unloaded = unload_if_dead_at(&iter, is_alive, unloading_occurred); |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1998 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1999 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2000 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2001 case relocInfo::metadata_type: |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2002 if (mark_metadata_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2003 mark_metadata_on_stack_at(&iter); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2004 } |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2005 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2006 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2007 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2008 if (mark_metadata_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2009 mark_metadata_on_stack_non_relocs(); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2010 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2011 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2012 if (is_unloaded) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2013 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2014 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2015 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2016 // Scopes |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2017 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2018 if (*p == Universe::non_oop_word()) continue; // skip non-oops |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2019 if (can_unload(is_alive, p, unloading_occurred)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2020 is_unloaded = true; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2021 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2022 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2023 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2024 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2025 if (is_unloaded) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2026 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2027 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2028 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2029 // Ensure that all metadata is still alive |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2030 verify_metadata_loaders(low_boundary, is_alive); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2031 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2032 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2033 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2034 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2035 void nmethod::do_unloading_parallel_postponed(BoolObjectClosure* is_alive, bool unloading_occurred) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2036 ResourceMark rm; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2037 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2038 // Make sure the oop's ready to receive visitors |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2039 assert(!is_zombie(), |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2040 "should not call follow on zombie nmethod"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2041 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2042 // If the method is not entrant then a JMP is plastered over the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2043 // first few bytes. If an oop in the old code was there, that oop |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2044 // should not get GC'd. Skip the first few bytes of oops on |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2045 // not-entrant methods. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2046 address low_boundary = verified_entry_point(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2047 if (is_not_entrant()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2048 low_boundary += NativeJump::instruction_size; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2049 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2050 // (See comment above.) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2051 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2052 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2053 RelocIterator iter(this, low_boundary); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2054 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2055 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2056 switch (iter.type()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2057 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2058 case relocInfo::virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2059 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2060 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2061 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2062 case relocInfo::opt_virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2063 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2064 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2065 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2066 case relocInfo::static_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2067 clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2068 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2069 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2070 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2071 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2072 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2073 #ifdef ASSERT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2074 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2075 class CheckClass : AllStatic { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2076 static BoolObjectClosure* _is_alive; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2077 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2078 // Check class_loader is alive for this bit of metadata. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2079 static void check_class(Metadata* md) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2080 Klass* klass = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2081 if (md->is_klass()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2082 klass = ((Klass*)md); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2083 } else if (md->is_method()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2084 klass = ((Method*)md)->method_holder(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2085 } else if (md->is_methodData()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2086 klass = ((MethodData*)md)->method()->method_holder(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2087 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2088 md->print(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2089 ShouldNotReachHere(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2090 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2091 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2092 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2093 public: |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2094 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2095 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2096 _is_alive = is_alive; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2097 nm->metadata_do(check_class); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2098 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2099 }; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2100 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2101 // This is called during a safepoint so can use static data |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2102 BoolObjectClosure* CheckClass::_is_alive = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2103 #endif // ASSERT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2104 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2105 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2106 // Processing of oop references should have been sufficient to keep |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2107 // all strong references alive. Any weak references should have been |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2108 // cleared as well. Visit all the metadata and ensure that it's |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2109 // really alive. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2110 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2111 #ifdef ASSERT |
0 | 2112 RelocIterator iter(this, low_boundary); |
2113 while (iter.next()) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2114 // static_stub_Relocations may have dangling references to |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2115 // Method*s so trim them out here. Otherwise it looks like |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2116 // compiled code is maintaining a link to dead metadata. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2117 address static_call_addr = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2118 if (iter.type() == relocInfo::opt_virtual_call_type) { |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
2119 CompiledIC* cic = CompiledIC_at(&iter); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2120 if (!cic->is_call_to_interpreted()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2121 static_call_addr = iter.addr(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2122 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2123 } else if (iter.type() == relocInfo::static_call_type) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2124 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2125 if (!csc->is_call_to_interpreted()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2126 static_call_addr = iter.addr(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2127 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2128 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2129 if (static_call_addr != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2130 RelocIterator sciter(this, low_boundary); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2131 while (sciter.next()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2132 if (sciter.type() == relocInfo::static_stub_type && |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2133 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2134 sciter.static_stub_reloc()->clear_inline_cache(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2135 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2136 } |
0 | 2137 } |
2138 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2139 // Check that the metadata embedded in the nmethod is alive |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2140 CheckClass::do_check_class(is_alive, this); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2141 #endif |
0 | 2142 } |
2143 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2144 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2145 // Iterate over metadata calling this function. Used by RedefineClasses |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2146 void nmethod::metadata_do(void f(Metadata*)) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2147 address low_boundary = verified_entry_point(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2148 if (is_not_entrant()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2149 low_boundary += NativeJump::instruction_size; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2150 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2151 // (See comment above.) |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2152 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2153 { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2154 // Visit all immediate references that are embedded in the instruction stream. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2155 RelocIterator iter(this, low_boundary); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2156 while (iter.next()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2157 if (iter.type() == relocInfo::metadata_type ) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2158 metadata_Relocation* r = iter.metadata_reloc(); |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2159 // In this metadata, we must only follow those metadatas directly embedded in |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2160 // the code. Other metadatas (oop_index>0) are seen as part of |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2161 // the metadata section below. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2162 assert(1 == (r->metadata_is_immediate()) + |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2163 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2164 "metadata must be found in exactly one place"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2165 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2166 Metadata* md = r->metadata_value(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2167 f(md); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2168 } |
10253
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2169 } else if (iter.type() == relocInfo::virtual_call_type) { |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2170 // Check compiledIC holders associated with this nmethod |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
2171 CompiledIC *ic = CompiledIC_at(&iter); |
10253
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2172 if (ic->is_icholder_call()) { |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2173 CompiledICHolder* cichk = ic->cached_icholder(); |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2174 f(cichk->holder_method()); |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2175 f(cichk->holder_klass()); |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2176 } else { |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2177 Metadata* ic_oop = ic->cached_metadata(); |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2178 if (ic_oop != NULL) { |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2179 f(ic_oop); |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2180 } |
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2181 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2182 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2183 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2184 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2185 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2186 // Visit the metadata section |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2187 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2188 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2189 Metadata* md = *p; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2190 f(md); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2191 } |
10253
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
parents:
10114
diff
changeset
|
2192 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2193 // Visit metadata not embedded in the other places. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2194 if (_method != NULL) f(_method); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2195 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2196 |
12080 | 2197 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
0 | 2198 // make sure the oops ready to receive visitors |
12080 | 2199 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
2200 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
0 | 2201 |
2202 // If the method is not entrant or zombie then a JMP is plastered over the | |
2203 // first few bytes. If an oop in the old code was there, that oop | |
2204 // should not get GC'd. Skip the first few bytes of oops on | |
2205 // not-entrant methods. | |
2206 address low_boundary = verified_entry_point(); | |
2207 if (is_not_entrant()) { | |
2208 low_boundary += NativeJump::instruction_size; | |
2209 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
2210 // (See comment above.) | |
2211 } | |
2212 | |
2213 RelocIterator iter(this, low_boundary); | |
941 | 2214 |
0 | 2215 while (iter.next()) { |
2216 if (iter.type() == relocInfo::oop_type ) { | |
2217 oop_Relocation* r = iter.oop_reloc(); | |
2218 // In this loop, we must only follow those oops directly embedded in | |
2219 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
941 | 2220 assert(1 == (r->oop_is_immediate()) + |
2221 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
2222 "oop must be found in exactly one place"); | |
0 | 2223 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
2224 f->do_oop(r->oop_addr()); | |
2225 } | |
2226 } | |
2227 } | |
2228 | |
2229 // Scopes | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2230 // This includes oop constants not inlined in the code stream. |
0 | 2231 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2232 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
2233 f->do_oop(p); | |
2234 } | |
2235 } | |
2236 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2237 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2238 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2239 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2240 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2241 // An nmethod is "marked" if its _mark_link is set non-null. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2242 // Even if it is the end of the linked list, it will have a non-null link value, |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2243 // as long as it is on the list. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2244 // This code must be MP safe, because it is used from parallel GC passes. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2245 bool nmethod::test_set_oops_do_mark() { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2246 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2247 nmethod* observed_mark_link = _oops_do_mark_link; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2248 if (observed_mark_link == NULL) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2249 // Claim this nmethod for this thread to mark. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2250 observed_mark_link = (nmethod*) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2251 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2252 if (observed_mark_link == NULL) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2253 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2254 // Atomically append this nmethod (now claimed) to the head of the list: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2255 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2256 for (;;) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2257 nmethod* required_mark_nmethods = observed_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2258 _oops_do_mark_link = required_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2259 observed_mark_nmethods = (nmethod*) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2260 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2261 if (observed_mark_nmethods == required_mark_nmethods) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2262 break; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2263 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2264 // Mark was clear when we first saw this guy. |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2265 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2266 return false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2267 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2268 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2269 // On fall through, another racing thread marked this nmethod before we did. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2270 return true; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2271 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2272 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2273 void nmethod::oops_do_marking_prologue() { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2274 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2275 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2276 // We use cmpxchg_ptr instead of regular assignment here because the user |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2277 // may fork a bunch of threads, and we need them all to see the same state. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2278 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2279 guarantee(observed == NULL, "no races in this sequential code"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2280 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2281 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2282 void nmethod::oops_do_marking_epilogue() { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2283 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2284 nmethod* cur = _oops_do_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2285 while (cur != NMETHOD_SENTINEL) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2286 assert(cur != NULL, "not NULL-terminated"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2287 nmethod* next = cur->_oops_do_mark_link; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2288 cur->_oops_do_mark_link = NULL; |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2289 cur->verify_oop_relocations(); |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2290 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2291 cur = next; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2292 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2293 void* required = _oops_do_mark_nmethods; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2294 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2295 guarantee(observed == required, "no races in this sequential code"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2296 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2297 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2298 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2299 class DetectScavengeRoot: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2300 bool _detected_scavenge_root; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2301 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2302 DetectScavengeRoot() : _detected_scavenge_root(false) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2303 { NOT_PRODUCT(_print_nm = NULL); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2304 bool detected_scavenge_root() { return _detected_scavenge_root; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2305 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2306 if ((*p) != NULL && (*p)->is_scavengable()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2307 NOT_PRODUCT(maybe_print(p)); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2308 _detected_scavenge_root = true; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2309 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2310 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2311 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2312 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2313 #ifndef PRODUCT |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2314 nmethod* _print_nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2315 void maybe_print(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2316 if (_print_nm == NULL) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2317 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2318 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2319 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2320 (void *)(*p), (intptr_t)p); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2321 (*p)->print(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2322 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2323 #endif //PRODUCT |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2324 }; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2325 |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2326 bool nmethod::detect_scavenge_root_oops() { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2327 DetectScavengeRoot detect_scavenge_root; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2328 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2329 oops_do(&detect_scavenge_root); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2330 return detect_scavenge_root.detected_scavenge_root(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2331 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2332 |
0 | 2333 // Method that knows how to preserve outgoing arguments at call. This method must be |
2334 // called with a frame corresponding to a Java invoke | |
2335 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
1692 | 2336 #ifndef SHARK |
0 | 2337 if (!method()->is_native()) { |
2338 SimpleScopeDesc ssd(this, fr.pc()); | |
2142 | 2339 Bytecode_invoke call(ssd.method(), ssd.bci()); |
10390 | 2340 bool has_receiver = call.has_receiver(); |
2341 bool has_appendix = call.has_appendix(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2342 Symbol* signature = call.signature(); |
10390 | 2343 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
0 | 2344 } |
1692 | 2345 #endif // !SHARK |
0 | 2346 } |
2347 | |
2348 | |
2349 oop nmethod::embeddedOop_at(u_char* p) { | |
2349
4cd9add59b1e
7024866: # assert(limit == NULL || limit <= nm->code_end()) failed: in bounds
never
parents:
2321
diff
changeset
|
2350 RelocIterator iter(this, p, p + 1); |
0 | 2351 while (iter.next()) |
2352 if (iter.type() == relocInfo::oop_type) { | |
2353 return iter.oop_reloc()->oop_value(); | |
2354 } | |
2355 return NULL; | |
2356 } | |
2357 | |
2358 | |
2359 inline bool includes(void* p, void* from, void* to) { | |
2360 return from <= p && p < to; | |
2361 } | |
2362 | |
2363 | |
2364 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
2365 assert(count >= 2, "must be sentinel values, at least"); | |
2366 | |
2367 #ifdef ASSERT | |
2368 // must be sorted and unique; we do a binary search in find_pc_desc() | |
2369 int prev_offset = pcs[0].pc_offset(); | |
2370 assert(prev_offset == PcDesc::lower_offset_limit, | |
2371 "must start with a sentinel"); | |
2372 for (int i = 1; i < count; i++) { | |
2373 int this_offset = pcs[i].pc_offset(); | |
2374 assert(this_offset > prev_offset, "offsets must be sorted"); | |
2375 prev_offset = this_offset; | |
2376 } | |
2377 assert(prev_offset == PcDesc::upper_offset_limit, | |
2378 "must end with a sentinel"); | |
2379 #endif //ASSERT | |
2380 | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2381 // Search for MethodHandle invokes and tag the nmethod. |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2382 for (int i = 0; i < count; i++) { |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2383 if (pcs[i].is_method_handle_invoke()) { |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2384 set_has_method_handle_invokes(true); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2385 break; |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2386 } |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2387 } |
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
twisti
parents:
1972
diff
changeset
|
2388 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2389 |
0 | 2390 int size = count * sizeof(PcDesc); |
2391 assert(scopes_pcs_size() >= size, "oob"); | |
2392 memcpy(scopes_pcs_begin(), pcs, size); | |
2393 | |
2394 // Adjust the final sentinel downward. | |
2395 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
2396 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
1748 | 2397 last_pc->set_pc_offset(content_size() + 1); |
0 | 2398 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
2399 // Fill any rounding gaps with copies of the last record. | |
2400 last_pc[1] = last_pc[0]; | |
2401 } | |
2402 // The following assert could fail if sizeof(PcDesc) is not | |
2403 // an integral multiple of oopSize (the rounding term). | |
2404 // If it fails, change the logic to always allocate a multiple | |
2405 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
2406 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
2407 } | |
2408 | |
2409 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
2410 assert(scopes_data_size() >= size, "oob"); | |
2411 memcpy(scopes_data_begin(), buffer, size); | |
2412 } | |
2413 | |
2414 | |
2415 #ifdef ASSERT | |
2416 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
2417 PcDesc* lower = nm->scopes_pcs_begin(); | |
2418 PcDesc* upper = nm->scopes_pcs_end(); | |
2419 lower += 1; // exclude initial sentinel | |
2420 PcDesc* res = NULL; | |
2421 for (PcDesc* p = lower; p < upper; p++) { | |
2422 NOT_PRODUCT(--nmethod_stats.pc_desc_tests); // don't count this call to match_desc | |
2423 if (match_desc(p, pc_offset, approximate)) { | |
2424 if (res == NULL) | |
2425 res = p; | |
2426 else | |
2427 res = (PcDesc*) badAddress; | |
2428 } | |
2429 } | |
2430 return res; | |
2431 } | |
2432 #endif | |
2433 | |
2434 | |
2435 // Finds a PcDesc with real-pc equal to "pc" | |
2436 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
1748 | 2437 address base_address = code_begin(); |
0 | 2438 if ((pc < base_address) || |
2439 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
2440 return NULL; // PC is wildly out of range | |
2441 } | |
2442 int pc_offset = (int) (pc - base_address); | |
2443 | |
2444 // Check the PcDesc cache if it contains the desired PcDesc | |
2445 // (This as an almost 100% hit rate.) | |
2446 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
2447 if (res != NULL) { | |
2448 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
2449 return res; | |
2450 } | |
2451 | |
2452 // Fallback algorithm: quasi-linear search for the PcDesc | |
2453 // Find the last pc_offset less than the given offset. | |
2454 // The successor must be the required match, if there is a match at all. | |
2455 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
2456 PcDesc* lower = scopes_pcs_begin(); | |
2457 PcDesc* upper = scopes_pcs_end(); | |
2458 upper -= 1; // exclude final sentinel | |
2459 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
2460 | |
2461 #define assert_LU_OK \ | |
2462 /* invariant on lower..upper during the following search: */ \ | |
2463 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
2464 assert(upper->pc_offset() >= pc_offset, "sanity") | |
2465 assert_LU_OK; | |
2466 | |
2467 // Use the last successful return as a split point. | |
2468 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
2469 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2470 if (mid->pc_offset() < pc_offset) { | |
2471 lower = mid; | |
2472 } else { | |
2473 upper = mid; | |
2474 } | |
2475 | |
2476 // Take giant steps at first (4096, then 256, then 16, then 1) | |
2477 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
2478 const int RADIX = (1 << LOG2_RADIX); | |
2479 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
2480 while ((mid = lower + step) < upper) { | |
2481 assert_LU_OK; | |
2482 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2483 if (mid->pc_offset() < pc_offset) { | |
2484 lower = mid; | |
2485 } else { | |
2486 upper = mid; | |
2487 break; | |
2488 } | |
2489 } | |
2490 assert_LU_OK; | |
2491 } | |
2492 | |
2493 // Sneak up on the value with a linear search of length ~16. | |
2494 while (true) { | |
2495 assert_LU_OK; | |
2496 mid = lower + 1; | |
2497 NOT_PRODUCT(++nmethod_stats.pc_desc_searches); | |
2498 if (mid->pc_offset() < pc_offset) { | |
2499 lower = mid; | |
2500 } else { | |
2501 upper = mid; | |
2502 break; | |
2503 } | |
2504 } | |
2505 #undef assert_LU_OK | |
2506 | |
2507 if (match_desc(upper, pc_offset, approximate)) { | |
2508 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
2509 _pc_desc_cache.add_pc_desc(upper); | |
2510 return upper; | |
2511 } else { | |
2512 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
2513 return NULL; | |
2514 } | |
2515 } | |
2516 | |
2517 | |
2518 bool nmethod::check_all_dependencies() { | |
2519 bool found_check = false; | |
2520 // wholesale check of all dependencies | |
2521 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2522 if (deps.check_dependency() != NULL) { | |
2523 found_check = true; | |
2524 NOT_DEBUG(break); | |
2525 } | |
2526 } | |
2527 return found_check; // tell caller if we found anything | |
2528 } | |
2529 | |
2530 bool nmethod::check_dependency_on(DepChange& changes) { | |
2531 // What has happened: | |
2532 // 1) a new class dependee has been added | |
2533 // 2) dependee and all its super classes have been marked | |
2534 bool found_check = false; // set true if we are upset | |
2535 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2536 // Evaluate only relevant dependencies. | |
2537 if (deps.spot_check_dependency_at(changes) != NULL) { | |
2538 found_check = true; | |
2539 NOT_DEBUG(break); | |
2540 } | |
2541 } | |
2542 return found_check; | |
2543 } | |
2544 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2545 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2546 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2547 Array<Method*>* dependee_methods = dependee_ik->methods(); |
0 | 2548 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2549 if (deps.type() == Dependencies::evol_method) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2550 Method* method = deps.method_argument(0); |
0 | 2551 for (int j = 0; j < dependee_methods->length(); j++) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2552 if (dependee_methods->at(j) == method) { |
0 | 2553 // RC_TRACE macro has an embedded ResourceMark |
2554 RC_TRACE(0x01000000, | |
2555 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2556 _method->method_holder()->external_name(), |
0 | 2557 _method->name()->as_C_string(), |
2558 _method->signature()->as_C_string(), compile_id(), | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2559 method->method_holder()->external_name(), |
0 | 2560 method->name()->as_C_string(), |
2561 method->signature()->as_C_string())); | |
2562 if (TraceDependencies || LogCompilation) | |
2563 deps.log_dependency(dependee); | |
2564 return true; | |
2565 } | |
2566 } | |
2567 } | |
2568 } | |
2569 return false; | |
2570 } | |
2571 | |
2572 // Called from mark_for_deoptimization, when dependee is invalidated. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2573 bool nmethod::is_dependent_on_method(Method* dependee) { |
0 | 2574 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2575 if (deps.type() != Dependencies::evol_method) | |
2576 continue; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2577 Method* method = deps.method_argument(0); |
0 | 2578 if (method == dependee) return true; |
2579 } | |
2580 return false; | |
2581 } | |
2582 | |
2583 | |
2584 bool nmethod::is_patchable_at(address instr_addr) { | |
1748 | 2585 assert(insts_contains(instr_addr), "wrong nmethod used"); |
0 | 2586 if (is_zombie()) { |
2587 // a zombie may never be patched | |
2588 return false; | |
2589 } | |
2590 return true; | |
2591 } | |
2592 | |
2593 | |
2594 address nmethod::continuation_for_implicit_exception(address pc) { | |
2595 // Exception happened outside inline-cache check code => we are inside | |
2596 // an active nmethod => use cpc to determine a return address | |
1748 | 2597 int exception_offset = pc - code_begin(); |
0 | 2598 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
2599 #ifdef ASSERT | |
2600 if (cont_offset == 0) { | |
2601 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
2602 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
2603 HandleMark hm(thread); | |
2604 ResourceMark rm(thread); | |
2605 CodeBlob* cb = CodeCache::find_blob(pc); | |
2606 assert(cb != NULL && cb == this, ""); | |
2607 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
2608 print(); | |
2609 method()->print_codes(); | |
2610 print_code(); | |
2611 print_pcs(); | |
2612 } | |
2613 #endif | |
1250 | 2614 if (cont_offset == 0) { |
2615 // Let the normal error handling report the exception | |
2616 return NULL; | |
2617 } | |
1748 | 2618 return code_begin() + cont_offset; |
0 | 2619 } |
2620 | |
2621 | |
2622 | |
2623 void nmethod_init() { | |
2624 // make sure you didn't forget to adjust the filler fields | |
2625 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
2626 } | |
2627 | |
2628 | |
2629 //------------------------------------------------------------------------------------------- | |
2630 | |
2631 | |
2632 // QQQ might we make this work from a frame?? | |
2633 nmethodLocker::nmethodLocker(address pc) { | |
2634 CodeBlob* cb = CodeCache::find_blob(pc); | |
2635 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
2636 _nm = (nmethod*)cb; | |
2637 lock_nmethod(_nm); | |
2638 } | |
2639 | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2640 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2641 // should pass zombie_ok == true. |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2642 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
0 | 2643 if (nm == NULL) return; |
2644 Atomic::inc(&nm->_lock_count); | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
2645 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
0 | 2646 } |
2647 | |
2648 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
2649 if (nm == NULL) return; | |
2650 Atomic::dec(&nm->_lock_count); | |
2651 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
2652 } | |
2653 | |
1204 | 2654 |
2655 // ----------------------------------------------------------------------------- | |
2656 // nmethod::get_deopt_original_pc | |
2657 // | |
2658 // Return the original PC for the given PC if: | |
2659 // (a) the given PC belongs to a nmethod and | |
2660 // (b) it is a deopt PC | |
2661 address nmethod::get_deopt_original_pc(const frame* fr) { | |
2662 if (fr->cb() == NULL) return NULL; | |
2663 | |
2664 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
2665 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
2666 return nm->get_original_pc(fr); | |
2667 | |
2668 return NULL; | |
0 | 2669 } |
2670 | |
2671 | |
2672 // ----------------------------------------------------------------------------- | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2673 // MethodHandle |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2674 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2675 bool nmethod::is_method_handle_return(address return_pc) { |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2676 if (!has_method_handle_invokes()) return false; |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2677 PcDesc* pd = pc_desc_at(return_pc); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2678 if (pd == NULL) |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2679 return false; |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2680 return pd->is_method_handle_invoke(); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2681 } |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2682 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2683 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2684 // ----------------------------------------------------------------------------- |
0 | 2685 // Verification |
2686 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2687 class VerifyOopsClosure: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2688 nmethod* _nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2689 bool _ok; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2690 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2691 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2692 bool ok() { return _ok; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2693 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2694 if ((*p) == NULL || (*p)->is_oop()) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2695 if (_ok) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2696 _nm->print_nmethod(true); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2697 _ok = false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2698 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2699 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2700 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2701 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2702 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2703 }; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2704 |
0 | 2705 void nmethod::verify() { |
2706 | |
2707 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
2708 // seems odd. | |
2709 | |
23427
c1950f51ed60
8075805: Crash while trying to release CompiledICHolder
thartmann
parents:
23426
diff
changeset
|
2710 if (is_zombie() || is_not_entrant() || is_unloaded()) |
0 | 2711 return; |
2712 | |
2713 // Make sure all the entry points are correctly aligned for patching. | |
2714 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
2715 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2716 // assert(method()->is_oop(), "must be valid"); |
0 | 2717 |
2718 ResourceMark rm; | |
2719 | |
2720 if (!CodeCache::contains(this)) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2721 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
0 | 2722 } |
2723 | |
2724 if(is_native_method() ) | |
2725 return; | |
2726 | |
2727 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
2728 if (nm != this) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2729 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2730 this)); |
0 | 2731 } |
2732 | |
2733 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2734 if (! p->verify(this)) { | |
2735 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
2736 } | |
2737 } | |
2738 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2739 VerifyOopsClosure voc(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2740 oops_do(&voc); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2741 assert(voc.ok(), "embedded oops must be OK"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2742 verify_scavenge_root_oops(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2743 |
0 | 2744 verify_scopes(); |
2745 } | |
2746 | |
2747 | |
2748 void nmethod::verify_interrupt_point(address call_site) { | |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2749 // Verify IC only when nmethod installation is finished. |
13441 | 2750 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
2751 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2752 if (is_installed) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2753 Thread *cur = Thread::current(); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2754 if (CompiledIC_lock->owner() == cur || |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2755 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2756 SafepointSynchronize::is_at_safepoint())) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2757 CompiledIC_at(this, call_site); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2758 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2759 } else { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2760 MutexLocker ml_verify (CompiledIC_lock); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2761 CompiledIC_at(this, call_site); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2762 } |
0 | 2763 } |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2764 |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2765 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
0 | 2766 assert(pd != NULL, "PcDesc must exist"); |
2767 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2768 pd->obj_decode_offset(), pd->should_reexecute(), |
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2769 pd->return_oop()); |
0 | 2770 !sd->is_top(); sd = sd->sender()) { |
2771 sd->verify(); | |
2772 } | |
2773 } | |
2774 | |
2775 void nmethod::verify_scopes() { | |
2776 if( !method() ) return; // Runtime stubs have no scope | |
2777 if (method()->is_native()) return; // Ignore stub methods. | |
2778 // iterate through all interrupt point | |
2779 // and verify the debug information is valid. | |
2780 RelocIterator iter((nmethod*)this); | |
2781 while (iter.next()) { | |
2782 address stub = NULL; | |
2783 switch (iter.type()) { | |
2784 case relocInfo::virtual_call_type: | |
2785 verify_interrupt_point(iter.addr()); | |
2786 break; | |
2787 case relocInfo::opt_virtual_call_type: | |
2788 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
2789 verify_interrupt_point(iter.addr()); | |
2790 break; | |
2791 case relocInfo::static_call_type: | |
2792 stub = iter.static_call_reloc()->static_stub(); | |
2793 //verify_interrupt_point(iter.addr()); | |
2794 break; | |
2795 case relocInfo::runtime_call_type: | |
2796 address destination = iter.reloc()->value(); | |
2797 // Right now there is no way to find out which entries support | |
2798 // an interrupt point. It would be nice if we had this | |
2799 // information in a table. | |
2800 break; | |
2801 } | |
2802 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
2803 } | |
2804 } | |
2805 | |
2806 | |
2807 // ----------------------------------------------------------------------------- | |
2808 // Non-product code | |
2809 #ifndef PRODUCT | |
2810 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2811 class DebugScavengeRoot: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2812 nmethod* _nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2813 bool _ok; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2814 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2815 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2816 bool ok() { return _ok; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2817 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2818 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2819 if (_ok) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2820 _nm->print_nmethod(true); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2821 _ok = false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2822 } |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2823 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2824 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2825 (*p)->print(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2826 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2827 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2828 }; |
0 | 2829 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2830 void nmethod::verify_scavenge_root_oops() { |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2831 if (UseG1GC) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2832 return; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2833 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2834 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2835 if (!on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2836 // 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
|
2837 DebugScavengeRoot debug_scavenge_root(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2838 oops_do(&debug_scavenge_root); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2839 if (!debug_scavenge_root.ok()) |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2840 fatal("found an unadvertised bad scavengable oop in the code cache"); |
0 | 2841 } |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2842 assert(scavenge_root_not_marked(), ""); |
0 | 2843 } |
2844 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2845 #endif // PRODUCT |
0 | 2846 |
2847 // Printing operations | |
2848 | |
2849 void nmethod::print() const { | |
2850 ResourceMark rm; | |
2851 ttyLocker ttyl; // keep the following output all in one block | |
2852 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2853 tty->print("Compiled method "); |
0 | 2854 |
2855 if (is_compiled_by_c1()) { | |
2856 tty->print("(c1) "); | |
2857 } else if (is_compiled_by_c2()) { | |
2858 tty->print("(c2) "); | |
1692 | 2859 } else if (is_compiled_by_shark()) { |
2860 tty->print("(shark) "); | |
0 | 2861 } else { |
2862 tty->print("(nm) "); | |
2863 } | |
2864 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2865 print_on(tty, NULL); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2866 |
0 | 2867 if (WizardMode) { |
2868 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
2869 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
2870 tty->print(" { "); | |
2871 if (is_in_use()) tty->print("in_use "); | |
2872 if (is_not_entrant()) tty->print("not_entrant "); | |
2873 if (is_zombie()) tty->print("zombie "); | |
2874 if (is_unloaded()) tty->print("unloaded "); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2875 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
0 | 2876 tty->print_cr("}:"); |
2877 } | |
2878 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2879 (address)this, | |
2880 (address)this + size(), | |
2881 size()); | |
2882 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2883 relocation_begin(), | |
2884 relocation_end(), | |
2885 relocation_size()); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2886 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
|
2887 consts_begin(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2888 consts_end(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
2889 consts_size()); |
1748 | 2890 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2891 insts_begin(), | |
2892 insts_end(), | |
2893 insts_size()); | |
0 | 2894 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2895 stub_begin(), | |
2896 stub_end(), | |
2897 stub_size()); | |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2898 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
|
2899 oops_begin(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2900 oops_end(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
2901 oops_size()); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2902 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
|
2903 metadata_begin(), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2904 metadata_end(), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2905 metadata_size()); |
0 | 2906 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2907 scopes_data_begin(), | |
2908 scopes_data_end(), | |
2909 scopes_data_size()); | |
2910 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2911 scopes_pcs_begin(), | |
2912 scopes_pcs_end(), | |
2913 scopes_pcs_size()); | |
2914 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2915 dependencies_begin(), | |
2916 dependencies_end(), | |
2917 dependencies_size()); | |
2918 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2919 handler_table_begin(), | |
2920 handler_table_end(), | |
2921 handler_table_size()); | |
2922 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2923 nul_chk_table_begin(), | |
2924 nul_chk_table_end(), | |
2925 nul_chk_table_size()); | |
2926 } | |
2927 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2928 void nmethod::print_code() { |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2929 HandleMark hm; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2930 ResourceMark m; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2931 Disassembler::decode(this); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2932 } |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2933 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2934 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2935 #ifndef PRODUCT |
0 | 2936 |
2937 void nmethod::print_scopes() { | |
2938 // Find the first pc desc for all scopes in the code and print it. | |
2939 ResourceMark rm; | |
2940 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2941 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
2942 continue; | |
2943 | |
2944 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
2945 sd->print_on(tty, p); | |
2946 } | |
2947 } | |
2948 | |
2949 void nmethod::print_dependencies() { | |
2950 ResourceMark rm; | |
2951 ttyLocker ttyl; // keep the following output all in one block | |
2952 tty->print_cr("Dependencies:"); | |
2953 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2954 deps.print_dependency(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2955 Klass* ctxk = deps.context_type(); |
0 | 2956 if (ctxk != NULL) { |
6983 | 2957 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
2958 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
0 | 2959 } |
2960 } | |
2961 deps.log_dependency(); // put it into the xml log also | |
2962 } | |
2963 } | |
2964 | |
2965 | |
2966 void nmethod::print_relocations() { | |
2967 ResourceMark m; // in case methods get printed via the debugger | |
2968 tty->print_cr("relocations:"); | |
2969 RelocIterator iter(this); | |
2970 iter.print(); | |
2971 if (UseRelocIndex) { | |
2972 jint* index_end = (jint*)relocation_end() - 1; | |
2973 jint index_size = *index_end; | |
2974 jint* index_start = (jint*)( (address)index_end - index_size ); | |
2975 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
2976 if (index_size > 0) { | |
2977 jint* ip; | |
2978 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
2979 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
2980 ip[0], | |
2981 ip[1], | |
2982 header_end()+ip[0], | |
2983 relocation_begin()-1+ip[1]); | |
2984 for (; ip < index_end; ip++) | |
2985 tty->print_cr(" (%d ?)", ip[0]); | |
10973
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
2986 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
2987 ip++; |
0 | 2988 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
2989 } | |
2990 } | |
2991 } | |
2992 | |
2993 | |
2994 void nmethod::print_pcs() { | |
2995 ResourceMark m; // in case methods get printed via debugger | |
2996 tty->print_cr("pc-bytecode offsets:"); | |
2997 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2998 p->print(this); | |
2999 } | |
3000 } | |
3001 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3002 #endif // PRODUCT |
0 | 3003 |
3004 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
3005 RelocIterator iter(this, begin, end); | |
3006 bool have_one = false; | |
3007 while (iter.next()) { | |
3008 have_one = true; | |
3009 switch (iter.type()) { | |
3010 case relocInfo::none: return "no_reloc"; | |
3011 case relocInfo::oop_type: { | |
3012 stringStream st; | |
3013 oop_Relocation* r = iter.oop_reloc(); | |
3014 oop obj = r->oop_value(); | |
3015 st.print("oop("); | |
3016 if (obj == NULL) st.print("NULL"); | |
3017 else obj->print_value_on(&st); | |
3018 st.print(")"); | |
3019 return st.as_string(); | |
3020 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3021 case relocInfo::metadata_type: { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3022 stringStream st; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3023 metadata_Relocation* r = iter.metadata_reloc(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3024 Metadata* obj = r->metadata_value(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3025 st.print("metadata("); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3026 if (obj == NULL) st.print("NULL"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3027 else obj->print_value_on(&st); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3028 st.print(")"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3029 return st.as_string(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3030 } |
0 | 3031 case relocInfo::virtual_call_type: return "virtual_call"; |
3032 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
3033 case relocInfo::static_call_type: return "static_call"; | |
3034 case relocInfo::static_stub_type: return "static_stub"; | |
3035 case relocInfo::runtime_call_type: return "runtime_call"; | |
3036 case relocInfo::external_word_type: return "external_word"; | |
3037 case relocInfo::internal_word_type: return "internal_word"; | |
3038 case relocInfo::section_word_type: return "section_word"; | |
3039 case relocInfo::poll_type: return "poll"; | |
3040 case relocInfo::poll_return_type: return "poll_return"; | |
3041 case relocInfo::type_mask: return "type_bit_mask"; | |
3042 } | |
3043 } | |
3044 return have_one ? "other" : NULL; | |
3045 } | |
3046 | |
3047 // Return a the last scope in (begin..end] | |
3048 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
3049 PcDesc* p = pc_desc_near(begin+1); | |
3050 if (p != NULL && p->real_pc(this) <= end) { | |
3051 return new ScopeDesc(this, p->scope_decode_offset(), | |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
3052 p->obj_decode_offset(), p->should_reexecute(), |
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
3053 p->return_oop()); |
0 | 3054 } |
3055 return NULL; | |
3056 } | |
3057 | |
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
3058 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
|
3059 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
|
3060 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3061 if (block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3062 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
1204 | 3063 if (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
|
3064 |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3065 if (has_method_handle_invokes()) |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3066 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
|
3067 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3068 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
|
3069 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3070 if (block_begin == entry_point()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3071 methodHandle m = method(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3072 if (m.not_null()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3073 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3074 m->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3075 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3076 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3077 if (m.not_null() && !is_osr_method()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3078 ResourceMark rm; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3079 int sizeargs = m->size_of_parameters(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3080 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
|
3081 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3082 { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3083 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3084 if (!m->is_static()) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3085 sig_bt[sig_index++] = T_OBJECT; // 'this' |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3086 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
|
3087 BasicType t = ss.type(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3088 sig_bt[sig_index++] = t; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3089 if (type2size[t] == 2) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3090 sig_bt[sig_index++] = T_VOID; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3091 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3092 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
|
3093 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3094 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3095 assert(sig_index == sizeargs, ""); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3096 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3097 const char* spname = "sp"; // make arch-specific? |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3098 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
|
3099 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
|
3100 int tab1 = 14, tab2 = 24; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3101 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3102 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
|
3103 bool did_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3104 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
|
3105 bool at_this = (arg_index == -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3106 bool at_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3107 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
|
3108 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
|
3109 if (at_this) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3110 stream->print(" # this: "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3111 else |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3112 stream->print(" # parm%d: ", arg_index); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3113 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3114 VMReg fst = regs[sig_index].first(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3115 VMReg snd = regs[sig_index].second(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3116 if (fst->is_reg()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3117 stream->print("%s", fst->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3118 if (snd->is_valid()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3119 stream->print(":%s", snd->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3120 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3121 } else if (fst->is_stack()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3122 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
|
3123 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
|
3124 stream->print("[%s+0x%x]", spname, offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3125 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3126 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
|
3127 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3128 stream->print(" "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3129 stream->move_to(tab2); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3130 stream->print("= "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3131 if (at_this) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3132 m->method_holder()->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3133 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3134 bool did_name = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3135 if (!at_this && ss.is_object()) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
3136 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
|
3137 if (name != NULL) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3138 name->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3139 did_name = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3140 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3141 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3142 if (!did_name) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3143 stream->print("%s", type2name(t)); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3144 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3145 if (at_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3146 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3147 did_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3148 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3149 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3150 sig_index += type2size[t]; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3151 arg_index += 1; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3152 if (!at_this) ss.next(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3153 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3154 if (!did_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3155 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3156 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3157 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
|
3158 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3159 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3160 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3161 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3162 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3163 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3164 |
0 | 3165 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
3166 // First, find an oopmap in (begin, end]. | |
3167 // We use the odd half-closed interval so that oop maps and scope descs | |
3168 // which are tied to the byte after a call are printed with the call itself. | |
1748 | 3169 address base = code_begin(); |
0 | 3170 OopMapSet* oms = oop_maps(); |
3171 if (oms != NULL) { | |
3172 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
3173 OopMap* om = oms->at(i); | |
3174 address pc = base + om->offset(); | |
3175 if (pc > begin) { | |
3176 if (pc <= end) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3177 st->move_to(column); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3178 st->print("; "); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3179 om->print_on(st); |
0 | 3180 } |
3181 break; | |
3182 } | |
3183 } | |
3184 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3185 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3186 // Print any debug info present at this pc. |
0 | 3187 ScopeDesc* sd = scope_desc_in(begin, end); |
3188 if (sd != NULL) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3189 st->move_to(column); |
0 | 3190 if (sd->bci() == SynchronizationEntryBCI) { |
3191 st->print(";*synchronization entry"); | |
3192 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3193 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3194 st->print("method is NULL"); |
0 | 3195 } else if (sd->method()->is_native()) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3196 st->print("method is native"); |
0 | 3197 } else { |
2142 | 3198 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
0 | 3199 st->print(";*%s", Bytecodes::name(bc)); |
3200 switch (bc) { | |
3201 case Bytecodes::_invokevirtual: | |
3202 case Bytecodes::_invokespecial: | |
3203 case Bytecodes::_invokestatic: | |
3204 case Bytecodes::_invokeinterface: | |
3205 { | |
2142 | 3206 Bytecode_invoke invoke(sd->method(), sd->bci()); |
0 | 3207 st->print(" "); |
2142 | 3208 if (invoke.name() != NULL) |
3209 invoke.name()->print_symbol_on(st); | |
0 | 3210 else |
3211 st->print("<UNKNOWN>"); | |
3212 break; | |
3213 } | |
3214 case Bytecodes::_getfield: | |
3215 case Bytecodes::_putfield: | |
3216 case Bytecodes::_getstatic: | |
3217 case Bytecodes::_putstatic: | |
3218 { | |
2142 | 3219 Bytecode_field field(sd->method(), sd->bci()); |
0 | 3220 st->print(" "); |
2142 | 3221 if (field.name() != NULL) |
3222 field.name()->print_symbol_on(st); | |
0 | 3223 else |
3224 st->print("<UNKNOWN>"); | |
3225 } | |
3226 } | |
3227 } | |
3228 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3229 |
0 | 3230 // Print all scopes |
3231 for (;sd != NULL; sd = sd->sender()) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3232 st->move_to(column); |
0 | 3233 st->print("; -"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3234 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3235 st->print("method is NULL"); |
0 | 3236 } else { |
3237 sd->method()->print_short_name(st); | |
3238 } | |
3239 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
3240 if (lineno != -1) { | |
3241 st->print("@%d (line %d)", sd->bci(), lineno); | |
3242 } else { | |
3243 st->print("@%d", sd->bci()); | |
3244 } | |
3245 st->cr(); | |
3246 } | |
3247 } | |
3248 | |
3249 // Print relocation information | |
3250 const char* str = reloc_string_for(begin, end); | |
3251 if (str != NULL) { | |
3252 if (sd != NULL) st->cr(); | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3253 st->move_to(column); |
0 | 3254 st->print("; {%s}", str); |
3255 } | |
1748 | 3256 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
0 | 3257 if (cont_offset != 0) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3258 st->move_to(column); |
1748 | 3259 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
0 | 3260 } |
3261 | |
3262 } | |
3263 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3264 #ifndef PRODUCT |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3265 |
0 | 3266 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
|
3267 st->print("nmethod"); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3268 print_on(st, NULL); |
0 | 3269 } |
3270 | |
3271 void nmethod::print_calls(outputStream* st) { | |
3272 RelocIterator iter(this); | |
3273 while (iter.next()) { | |
3274 switch (iter.type()) { | |
3275 case relocInfo::virtual_call_type: | |
3276 case relocInfo::opt_virtual_call_type: { | |
3277 VerifyMutexLocker mc(CompiledIC_lock); | |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
3278 CompiledIC_at(&iter)->print(); |
0 | 3279 break; |
3280 } | |
3281 case relocInfo::static_call_type: | |
3282 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
3283 compiledStaticCall_at(iter.reloc())->print(); | |
3284 break; | |
3285 } | |
3286 } | |
3287 } | |
3288 | |
3289 void nmethod::print_handler_table() { | |
3290 ExceptionHandlerTable(this).print(); | |
3291 } | |
3292 | |
3293 void nmethod::print_nul_chk_table() { | |
1748 | 3294 ImplicitExceptionTable(this).print(code_begin()); |
0 | 3295 } |
3296 | |
3297 void nmethod::print_statistics() { | |
3298 ttyLocker ttyl; | |
3299 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
3300 nmethod_stats.print_native_nmethod_stats(); | |
3301 nmethod_stats.print_nmethod_stats(); | |
3302 DebugInformationRecorder::print_statistics(); | |
3303 nmethod_stats.print_pc_stats(); | |
3304 Dependencies::print_statistics(); | |
3305 if (xtty != NULL) xtty->tail("statistics"); | |
3306 } | |
3307 | |
3308 #endif // PRODUCT |