Mercurial > hg > truffle
annotate src/share/vm/code/nmethod.cpp @ 15063:36e1a11a72b3
new StackIntrospection interface to allow access to stack contents
author | Lukas Stadler <lukas.stadler@oracle.com> |
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date | Fri, 11 Apr 2014 11:52:19 +0200 |
parents | 169caf662ac7 |
children | 2c940b1a48d8 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "code/codeCache.hpp" | |
27 #include "code/compiledIC.hpp" | |
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28 #include "code/dependencies.hpp" |
1972 | 29 #include "code/nmethod.hpp" |
30 #include "code/scopeDesc.hpp" | |
31 #include "compiler/abstractCompiler.hpp" | |
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32 #include "compiler/compileBroker.hpp" |
1972 | 33 #include "compiler/compileLog.hpp" |
34 #include "compiler/compilerOracle.hpp" | |
35 #include "compiler/disassembler.hpp" | |
36 #include "interpreter/bytecode.hpp" | |
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37 #include "oops/methodData.hpp" |
1972 | 38 #include "prims/jvmtiRedefineClassesTrace.hpp" |
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39 #include "prims/jvmtiImpl.hpp" |
1972 | 40 #include "runtime/sharedRuntime.hpp" |
41 #include "runtime/sweeper.hpp" | |
42 #include "utilities/dtrace.hpp" | |
43 #include "utilities/events.hpp" | |
44 #include "utilities/xmlstream.hpp" | |
45 #ifdef SHARK | |
46 #include "shark/sharkCompiler.hpp" | |
47 #endif | |
9707 | 48 #ifdef GRAAL |
49 #include "graal/graalJavaAccess.hpp" | |
50 #endif | |
0 | 51 |
52 #ifdef DTRACE_ENABLED | |
53 | |
54 // Only bother with this argument setup if dtrace is available | |
55 | |
14909 | 56 #ifndef USDT2 |
57 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, | |
58 const char*, int, const char*, int, const char*, int, void*, size_t); | |
59 | |
60 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
61 char*, int, char*, int, char*, int); | |
62 | |
63 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
64 { \ | |
65 Method* m = (method); \ | |
66 if (m != NULL) { \ | |
67 Symbol* klass_name = m->klass_name(); \ | |
68 Symbol* name = m->name(); \ | |
69 Symbol* signature = m->signature(); \ | |
70 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ | |
71 klass_name->bytes(), klass_name->utf8_length(), \ | |
72 name->bytes(), name->utf8_length(), \ | |
73 signature->bytes(), signature->utf8_length()); \ | |
74 } \ | |
75 } | |
76 #else /* USDT2 */ | |
4006 | 77 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ |
78 { \ | |
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79 Method* m = (method); \ |
4006 | 80 if (m != NULL) { \ |
81 Symbol* klass_name = m->klass_name(); \ | |
82 Symbol* name = m->name(); \ | |
83 Symbol* signature = m->signature(); \ | |
84 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
85 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
86 (char *) name->bytes(), name->utf8_length(), \ | |
87 (char *) signature->bytes(), signature->utf8_length()); \ | |
88 } \ | |
89 } | |
14909 | 90 #endif /* USDT2 */ |
0 | 91 |
92 #else // ndef DTRACE_ENABLED | |
93 | |
94 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
95 | |
96 #endif | |
97 | |
98 bool nmethod::is_compiled_by_c1() const { | |
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99 if (compiler() == NULL) { |
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100 return false; |
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101 } |
0 | 102 return compiler()->is_c1(); |
103 } | |
9707 | 104 bool nmethod::is_compiled_by_graal() const { |
105 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing | |
106 if (is_native_method()) return false; | |
107 return compiler()->is_graal(); | |
108 } | |
0 | 109 bool nmethod::is_compiled_by_c2() const { |
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110 if (compiler() == NULL) { |
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111 return false; |
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112 } |
0 | 113 return compiler()->is_c2(); |
114 } | |
1692 | 115 bool nmethod::is_compiled_by_shark() const { |
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116 if (compiler() == NULL) { |
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117 return false; |
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118 } |
1692 | 119 return compiler()->is_shark(); |
120 } | |
0 | 121 |
122 | |
123 | |
124 //--------------------------------------------------------------------------------- | |
125 // NMethod statistics | |
126 // They are printed under various flags, including: | |
127 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
128 // (In the latter two cases, they like other stats are printed to the log only.) | |
129 | |
130 // These variables are put into one block to reduce relocations | |
131 // and make it simpler to print from the debugger. | |
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132 struct java_nmethod_stats_struct { |
0 | 133 int nmethod_count; |
134 int total_size; | |
135 int relocation_size; | |
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136 int consts_size; |
1748 | 137 int insts_size; |
0 | 138 int stub_size; |
139 int scopes_data_size; | |
140 int scopes_pcs_size; | |
141 int dependencies_size; | |
142 int handler_table_size; | |
143 int nul_chk_table_size; | |
144 int oops_size; | |
145 | |
146 void note_nmethod(nmethod* nm) { | |
147 nmethod_count += 1; | |
148 total_size += nm->size(); | |
149 relocation_size += nm->relocation_size(); | |
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150 consts_size += nm->consts_size(); |
1748 | 151 insts_size += nm->insts_size(); |
0 | 152 stub_size += nm->stub_size(); |
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153 oops_size += nm->oops_size(); |
0 | 154 scopes_data_size += nm->scopes_data_size(); |
155 scopes_pcs_size += nm->scopes_pcs_size(); | |
156 dependencies_size += nm->dependencies_size(); | |
157 handler_table_size += nm->handler_table_size(); | |
158 nul_chk_table_size += nm->nul_chk_table_size(); | |
159 } | |
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160 void print_nmethod_stats(const char* name) { |
0 | 161 if (nmethod_count == 0) return; |
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162 tty->print_cr("Statistics for %d bytecoded nmethods for %s:", nmethod_count, name); |
0 | 163 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); |
164 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); | |
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165 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
1748 | 166 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
0 | 167 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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168 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
0 | 169 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
170 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
171 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
172 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
173 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
174 } | |
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175 }; |
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176 |
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177 struct native_nmethod_stats_struct { |
0 | 178 int native_nmethod_count; |
179 int native_total_size; | |
180 int native_relocation_size; | |
1748 | 181 int native_insts_size; |
0 | 182 int native_oops_size; |
183 void note_native_nmethod(nmethod* nm) { | |
184 native_nmethod_count += 1; | |
185 native_total_size += nm->size(); | |
186 native_relocation_size += nm->relocation_size(); | |
1748 | 187 native_insts_size += nm->insts_size(); |
0 | 188 native_oops_size += nm->oops_size(); |
189 } | |
190 void print_native_nmethod_stats() { | |
191 if (native_nmethod_count == 0) return; | |
192 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
193 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
194 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
1748 | 195 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
0 | 196 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
197 } | |
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198 }; |
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199 |
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200 struct pc_nmethod_stats_struct { |
0 | 201 int pc_desc_resets; // number of resets (= number of caches) |
202 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
203 int pc_desc_approx; // number of those which have approximate true | |
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204 int pc_desc_repeats; // number of _pc_descs[0] hits |
0 | 205 int pc_desc_hits; // number of LRU cache hits |
206 int pc_desc_tests; // total number of PcDesc examinations | |
207 int pc_desc_searches; // total number of quasi-binary search steps | |
208 int pc_desc_adds; // number of LUR cache insertions | |
209 | |
210 void print_pc_stats() { | |
211 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
212 pc_desc_queries, | |
213 (double)(pc_desc_tests + pc_desc_searches) | |
214 / pc_desc_queries); | |
215 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
216 pc_desc_resets, | |
217 pc_desc_queries, pc_desc_approx, | |
218 pc_desc_repeats, pc_desc_hits, | |
219 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
220 } | |
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221 }; |
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222 |
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223 #ifdef COMPILER1 |
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224 static java_nmethod_stats_struct c1_java_nmethod_stats; |
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225 #endif |
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226 #ifdef COMPILER2 |
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227 static java_nmethod_stats_struct c2_java_nmethod_stats; |
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228 #endif |
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229 #ifdef GRAAL |
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230 static java_nmethod_stats_struct graal_java_nmethod_stats; |
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231 #endif |
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232 static java_nmethod_stats_struct unknown_java_nmethod_stats; |
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233 |
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234 static native_nmethod_stats_struct native_nmethod_stats; |
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235 static pc_nmethod_stats_struct pc_nmethod_stats; |
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236 |
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237 static void note_java_nmethod(nmethod* nm) { |
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238 #ifdef COMPILER1 |
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239 if (nm->is_compiled_by_c1()) { |
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240 c1_java_nmethod_stats.note_nmethod(nm); |
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241 } else |
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242 #endif |
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243 #ifdef COMPILER2 |
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244 if (nm->is_compiled_by_c2()) { |
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245 c2_java_nmethod_stats.note_nmethod(nm); |
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246 } else |
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247 #endif |
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248 #ifdef GRAAL |
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249 if (nm->is_compiled_by_graal()) { |
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250 graal_java_nmethod_stats.note_nmethod(nm); |
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251 } else |
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252 #endif |
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253 { |
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254 unknown_java_nmethod_stats.note_nmethod(nm); |
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255 } |
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256 } |
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257 |
0 | 258 //--------------------------------------------------------------------------------- |
259 | |
260 | |
261 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
262 assert(pc != NULL, "Must be non null"); | |
263 assert(exception.not_null(), "Must be non null"); | |
264 assert(handler != NULL, "Must be non null"); | |
265 | |
266 _count = 0; | |
267 _exception_type = exception->klass(); | |
268 _next = NULL; | |
269 | |
270 add_address_and_handler(pc,handler); | |
271 } | |
272 | |
273 | |
274 address ExceptionCache::match(Handle exception, address pc) { | |
275 assert(pc != NULL,"Must be non null"); | |
276 assert(exception.not_null(),"Must be non null"); | |
277 if (exception->klass() == exception_type()) { | |
278 return (test_address(pc)); | |
279 } | |
280 | |
281 return NULL; | |
282 } | |
283 | |
284 | |
285 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
286 assert(exception.not_null(),"Must be non null"); | |
287 if (exception->klass() == exception_type() && count() < cache_size) { | |
288 return true; | |
289 } | |
290 return false; | |
291 } | |
292 | |
293 | |
294 address ExceptionCache::test_address(address addr) { | |
295 for (int i=0; i<count(); i++) { | |
296 if (pc_at(i) == addr) { | |
297 return handler_at(i); | |
298 } | |
299 } | |
300 return NULL; | |
301 } | |
302 | |
303 | |
304 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
305 if (test_address(addr) == handler) return true; | |
306 if (count() < cache_size) { | |
307 set_pc_at(count(),addr); | |
308 set_handler_at(count(), handler); | |
309 increment_count(); | |
310 return true; | |
311 } | |
312 return false; | |
313 } | |
314 | |
315 | |
316 // private method for handling exception cache | |
317 // These methods are private, and used to manipulate the exception cache | |
318 // directly. | |
319 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
320 ExceptionCache* ec = exception_cache(); | |
321 while (ec != NULL) { | |
322 if (ec->match_exception_with_space(exception)) { | |
323 return ec; | |
324 } | |
325 ec = ec->next(); | |
326 } | |
327 return NULL; | |
328 } | |
329 | |
330 | |
331 //----------------------------------------------------------------------------- | |
332 | |
333 | |
334 // Helper used by both find_pc_desc methods. | |
335 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
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336 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_tests); |
0 | 337 if (!approximate) |
338 return pc->pc_offset() == pc_offset; | |
339 else | |
340 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
341 } | |
342 | |
343 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
344 if (initial_pc_desc == NULL) { | |
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345 _pc_descs[0] = NULL; // native method; no PcDescs at all |
0 | 346 return; |
347 } | |
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348 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_resets); |
0 | 349 // reset the cache by filling it with benign (non-null) values |
350 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
351 for (int i = 0; i < cache_size; i++) | |
352 _pc_descs[i] = initial_pc_desc; | |
353 } | |
354 | |
355 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
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356 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_queries); |
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357 NOT_PRODUCT(if (approximate) ++pc_nmethod_stats.pc_desc_approx); |
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358 |
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359 // Note: one might think that caching the most recently |
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360 // read value separately would be a win, but one would be |
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361 // wrong. When many threads are updating it, the cache |
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362 // line it's in would bounce between caches, negating |
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363 // any benefit. |
0 | 364 |
365 // In order to prevent race conditions do not load cache elements | |
366 // repeatedly, but use a local copy: | |
367 PcDesc* res; | |
368 | |
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369 // Step one: Check the most recently added value. |
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370 res = _pc_descs[0]; |
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371 if (res == NULL) return NULL; // native method; no PcDescs at all |
0 | 372 if (match_desc(res, pc_offset, approximate)) { |
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373 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_repeats); |
0 | 374 return res; |
375 } | |
376 | |
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377 // Step two: Check the rest of the LRU cache. |
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378 for (int i = 1; i < cache_size; ++i) { |
0 | 379 res = _pc_descs[i]; |
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380 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
0 | 381 if (match_desc(res, pc_offset, approximate)) { |
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382 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_hits); |
0 | 383 return res; |
384 } | |
385 } | |
386 | |
387 // Report failure. | |
388 return NULL; | |
389 } | |
390 | |
391 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
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392 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_adds); |
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393 // Update the LRU cache by shifting pc_desc forward. |
0 | 394 for (int i = 0; i < cache_size; i++) { |
395 PcDesc* next = _pc_descs[i]; | |
396 _pc_descs[i] = pc_desc; | |
397 pc_desc = next; | |
398 } | |
399 } | |
400 | |
401 // adjust pcs_size so that it is a multiple of both oopSize and | |
402 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
403 // of oopSize, then 2*sizeof(PcDesc) is) | |
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404 static int adjust_pcs_size(int pcs_size) { |
0 | 405 int nsize = round_to(pcs_size, oopSize); |
406 if ((nsize % sizeof(PcDesc)) != 0) { | |
407 nsize = pcs_size + sizeof(PcDesc); | |
408 } | |
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409 assert((nsize % oopSize) == 0, "correct alignment"); |
0 | 410 return nsize; |
411 } | |
412 | |
413 //----------------------------------------------------------------------------- | |
414 | |
415 | |
416 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
417 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
418 assert(new_entry != NULL,"Must be non null"); | |
419 assert(new_entry->next() == NULL, "Must be null"); | |
420 | |
421 if (exception_cache() != NULL) { | |
422 new_entry->set_next(exception_cache()); | |
423 } | |
424 set_exception_cache(new_entry); | |
425 } | |
426 | |
427 void nmethod::remove_from_exception_cache(ExceptionCache* ec) { | |
428 ExceptionCache* prev = NULL; | |
429 ExceptionCache* curr = exception_cache(); | |
430 assert(curr != NULL, "nothing to remove"); | |
431 // find the previous and next entry of ec | |
432 while (curr != ec) { | |
433 prev = curr; | |
434 curr = curr->next(); | |
435 assert(curr != NULL, "ExceptionCache not found"); | |
436 } | |
437 // now: curr == ec | |
438 ExceptionCache* next = curr->next(); | |
439 if (prev == NULL) { | |
440 set_exception_cache(next); | |
441 } else { | |
442 prev->set_next(next); | |
443 } | |
444 delete curr; | |
445 } | |
446 | |
447 | |
448 // public method for accessing the exception cache | |
449 // These are the public access methods. | |
450 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
451 // We never grab a lock to read the exception cache, so we may | |
452 // have false negatives. This is okay, as it can only happen during | |
453 // the first few exception lookups for a given nmethod. | |
454 ExceptionCache* ec = exception_cache(); | |
455 while (ec != NULL) { | |
456 address ret_val; | |
457 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
458 return ret_val; | |
459 } | |
460 ec = ec->next(); | |
461 } | |
462 return NULL; | |
463 } | |
464 | |
465 | |
466 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
467 // There are potential race conditions during exception cache updates, so we | |
468 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
605 | 469 // we don't lock during reads, it is possible to have several threads attempt |
0 | 470 // to update the cache with the same data. We need to check for already inserted |
471 // copies of the current data before adding it. | |
472 | |
473 MutexLocker ml(ExceptionCache_lock); | |
474 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
475 | |
476 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
477 target_entry = new ExceptionCache(exception,pc,handler); | |
478 add_exception_cache_entry(target_entry); | |
479 } | |
480 } | |
481 | |
482 | |
483 //-------------end of code for ExceptionCache-------------- | |
484 | |
485 | |
486 int nmethod::total_size() const { | |
487 return | |
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488 consts_size() + |
1748 | 489 insts_size() + |
0 | 490 stub_size() + |
491 scopes_data_size() + | |
492 scopes_pcs_size() + | |
493 handler_table_size() + | |
494 nul_chk_table_size(); | |
495 } | |
496 | |
497 const char* nmethod::compile_kind() const { | |
498 if (is_osr_method()) return "osr"; | |
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499 if (method() != NULL && is_native_method()) return "c2n"; |
0 | 500 return NULL; |
501 } | |
502 | |
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503 // Fill in default values for various flag fields |
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504 void nmethod::init_defaults() { |
13441 | 505 _state = in_use; |
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506 _marked_for_reclamation = 0; |
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507 _has_flushed_dependencies = 0; |
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508 _has_unsafe_access = 0; |
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509 _has_method_handle_invokes = 0; |
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510 _lazy_critical_native = 0; |
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511 _has_wide_vectors = 0; |
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512 _marked_for_deoptimization = 0; |
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513 _lock_count = 0; |
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514 _stack_traversal_mark = 0; |
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515 _unload_reported = false; // jvmti state |
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516 |
1726 | 517 #ifdef ASSERT |
518 _oops_are_stale = false; | |
519 #endif | |
520 | |
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521 _oops_do_mark_link = NULL; |
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522 _jmethod_id = NULL; |
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523 _osr_link = NULL; |
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524 _scavenge_root_link = NULL; |
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525 _scavenge_root_state = 0; |
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526 _compiler = NULL; |
9707 | 527 #ifdef GRAAL |
528 _graal_installed_code = NULL; | |
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529 _speculation_log = NULL; |
9707 | 530 #endif |
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531 #ifdef HAVE_DTRACE_H |
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532 _trap_offset = 0; |
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533 #endif // def HAVE_DTRACE_H |
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534 } |
0 | 535 |
536 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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537 int compile_id, |
0 | 538 CodeBuffer *code_buffer, |
539 int vep_offset, | |
540 int frame_complete, | |
541 int frame_size, | |
542 ByteSize basic_lock_owner_sp_offset, | |
543 ByteSize basic_lock_sp_offset, | |
544 OopMapSet* oop_maps) { | |
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545 code_buffer->finalize_oop_references(method); |
0 | 546 // create nmethod |
547 nmethod* nm = NULL; | |
548 { | |
549 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
550 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
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551 CodeOffsets offsets; |
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552 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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553 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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554 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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555 compile_id, &offsets, |
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556 code_buffer, frame_size, |
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557 basic_lock_owner_sp_offset, |
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558 basic_lock_sp_offset, oop_maps); |
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559 if (nm != NULL) note_java_nmethod(nm); |
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560 if (PrintAssembly && nm != NULL) { |
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561 Disassembler::decode(nm); |
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562 } |
0 | 563 } |
564 // verify nmethod | |
565 debug_only(if (nm) nm->verify();) // might block | |
566 | |
567 if (nm != NULL) { | |
568 nm->log_new_nmethod(); | |
569 } | |
570 | |
571 return nm; | |
572 } | |
573 | |
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574 #ifdef HAVE_DTRACE_H |
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575 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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576 CodeBuffer *code_buffer, |
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577 int vep_offset, |
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578 int trap_offset, |
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579 int frame_complete, |
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580 int frame_size) { |
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581 code_buffer->finalize_oop_references(method); |
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582 // create nmethod |
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583 nmethod* nm = NULL; |
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584 { |
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585 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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586 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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587 CodeOffsets offsets; |
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588 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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589 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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590 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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591 |
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592 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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593 &offsets, code_buffer, frame_size); |
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594 |
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595 if (nm != NULL) note_java_nmethod(nm); |
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596 if (PrintAssembly && nm != NULL) { |
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597 Disassembler::decode(nm); |
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598 } |
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599 } |
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600 // verify nmethod |
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601 debug_only(if (nm) nm->verify();) // might block |
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602 |
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603 if (nm != NULL) { |
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604 nm->log_new_nmethod(); |
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605 } |
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606 |
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607 return nm; |
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608 } |
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609 |
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610 #endif // def HAVE_DTRACE_H |
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611 |
0 | 612 nmethod* nmethod::new_nmethod(methodHandle method, |
613 int compile_id, | |
614 int entry_bci, | |
615 CodeOffsets* offsets, | |
616 int orig_pc_offset, | |
617 DebugInformationRecorder* debug_info, | |
618 Dependencies* dependencies, | |
619 CodeBuffer* code_buffer, int frame_size, | |
620 OopMapSet* oop_maps, | |
621 ExceptionHandlerTable* handler_table, | |
622 ImplicitExceptionTable* nul_chk_table, | |
623 AbstractCompiler* compiler, | |
624 int comp_level | |
9707 | 625 #ifdef GRAAL |
626 , Handle installed_code, | |
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627 Handle speculationLog |
9707 | 628 #endif |
0 | 629 ) |
630 { | |
631 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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632 code_buffer->finalize_oop_references(method); |
0 | 633 // create nmethod |
634 nmethod* nm = NULL; | |
635 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
636 int nmethod_size = | |
637 allocation_size(code_buffer, sizeof(nmethod)) | |
638 + adjust_pcs_size(debug_info->pcs_size()) | |
639 + round_to(dependencies->size_in_bytes() , oopSize) | |
640 + round_to(handler_table->size_in_bytes(), oopSize) | |
641 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
642 + round_to(debug_info->data_size() , oopSize); | |
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643 nm = new (nmethod_size) |
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644 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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645 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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646 oop_maps, |
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647 handler_table, |
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648 nul_chk_table, |
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649 compiler, |
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650 comp_level |
9707 | 651 #ifdef GRAAL |
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652 , installed_code, |
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653 speculationLog |
9707 | 654 #endif |
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655 ); |
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656 |
0 | 657 if (nm != NULL) { |
658 // To make dependency checking during class loading fast, record | |
659 // the nmethod dependencies in the classes it is dependent on. | |
660 // This allows the dependency checking code to simply walk the | |
661 // class hierarchy above the loaded class, checking only nmethods | |
662 // which are dependent on those classes. The slow way is to | |
663 // check every nmethod for dependencies which makes it linear in | |
664 // the number of methods compiled. For applications with a lot | |
665 // classes the slow way is too slow. | |
666 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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667 Klass* klass = deps.context_type(); |
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668 if (klass == NULL) { |
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669 continue; // ignore things like evol_method |
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670 } |
0 | 671 |
672 // record this nmethod as dependent on this klass | |
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673 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
0 | 674 } |
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675 if (nm != NULL) note_java_nmethod(nm); |
14909 | 676 if (PrintAssembly) { |
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677 Disassembler::decode(nm); |
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678 } |
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679 } |
0 | 680 } |
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681 // Do verification and logging outside CodeCache_lock. |
0 | 682 if (nm != NULL) { |
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683 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
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684 DEBUG_ONLY(nm->verify();) |
0 | 685 nm->log_new_nmethod(); |
686 } | |
687 return nm; | |
688 } | |
689 | |
690 | |
691 // For native wrappers | |
692 nmethod::nmethod( | |
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693 Method* method, |
0 | 694 int nmethod_size, |
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695 int compile_id, |
0 | 696 CodeOffsets* offsets, |
697 CodeBuffer* code_buffer, | |
698 int frame_size, | |
699 ByteSize basic_lock_owner_sp_offset, | |
700 ByteSize basic_lock_sp_offset, | |
701 OopMapSet* oop_maps ) | |
702 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
703 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 704 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
705 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
0 | 706 { |
707 { | |
708 debug_only(No_Safepoint_Verifier nsv;) | |
709 assert_locked_or_safepoint(CodeCache_lock); | |
710 | |
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711 init_defaults(); |
0 | 712 _method = method; |
713 _entry_bci = InvocationEntryBci; | |
714 // We have no exception handler or deopt handler make the | |
715 // values something that will never match a pc like the nmethod vtable entry | |
716 _exception_offset = 0; | |
717 _deoptimize_offset = 0; | |
1204 | 718 _deoptimize_mh_offset = 0; |
0 | 719 _orig_pc_offset = 0; |
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720 |
1748 | 721 _consts_offset = data_offset(); |
0 | 722 _stub_offset = data_offset(); |
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723 _oops_offset = data_offset(); |
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724 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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725 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
0 | 726 _scopes_pcs_offset = _scopes_data_offset; |
727 _dependencies_offset = _scopes_pcs_offset; | |
728 _handler_table_offset = _dependencies_offset; | |
729 _nul_chk_table_offset = _handler_table_offset; | |
730 _nmethod_end_offset = _nul_chk_table_offset; | |
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731 _compile_id = compile_id; |
0 | 732 _comp_level = CompLevel_none; |
1748 | 733 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
734 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
0 | 735 _osr_entry_point = NULL; |
736 _exception_cache = NULL; | |
737 _pc_desc_cache.reset_to(NULL); | |
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738 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
0 | 739 |
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740 code_buffer->copy_values_to(this); |
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741 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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742 CodeCache::add_scavenge_root_nmethod(this); |
12080 | 743 Universe::heap()->register_nmethod(this); |
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744 } |
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745 debug_only(verify_scavenge_root_oops()); |
0 | 746 CodeCache::commit(this); |
747 } | |
748 | |
749 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
750 ttyLocker ttyl; // keep the following output all in one block | |
751 // This output goes directly to the tty, not the compiler log. | |
752 // To enable tools to match it up with the compilation activity, | |
753 // be sure to tag this tty output with the compile ID. | |
754 if (xtty != NULL) { | |
755 xtty->begin_head("print_native_nmethod"); | |
756 xtty->method(_method); | |
757 xtty->stamp(); | |
758 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
759 } | |
760 // print the header part first | |
761 print(); | |
762 // then print the requested information | |
763 if (PrintNativeNMethods) { | |
764 print_code(); | |
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765 if (oop_maps != NULL) { |
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766 oop_maps->print(); |
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767 } |
0 | 768 } |
769 if (PrintRelocations) { | |
770 print_relocations(); | |
771 } | |
772 if (xtty != NULL) { | |
773 xtty->tail("print_native_nmethod"); | |
774 } | |
775 } | |
776 } | |
777 | |
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778 // For dtrace wrappers |
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779 #ifdef HAVE_DTRACE_H |
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780 nmethod::nmethod( |
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781 Method* method, |
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782 int nmethod_size, |
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783 CodeOffsets* offsets, |
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784 CodeBuffer* code_buffer, |
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785 int frame_size) |
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786 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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787 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
2019 | 788 _native_receiver_sp_offset(in_ByteSize(-1)), |
789 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
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790 { |
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791 { |
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792 debug_only(No_Safepoint_Verifier nsv;) |
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793 assert_locked_or_safepoint(CodeCache_lock); |
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794 |
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795 init_defaults(); |
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796 _method = method; |
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797 _entry_bci = InvocationEntryBci; |
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798 // We have no exception handler or deopt handler make the |
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799 // values something that will never match a pc like the nmethod vtable entry |
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800 _exception_offset = 0; |
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801 _deoptimize_offset = 0; |
1204 | 802 _deoptimize_mh_offset = 0; |
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803 _unwind_handler_offset = -1; |
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804 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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805 _orig_pc_offset = 0; |
1748 | 806 _consts_offset = data_offset(); |
116
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807 _stub_offset = data_offset(); |
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808 _oops_offset = data_offset(); |
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809 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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810 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
116
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811 _scopes_pcs_offset = _scopes_data_offset; |
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812 _dependencies_offset = _scopes_pcs_offset; |
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813 _handler_table_offset = _dependencies_offset; |
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814 _nul_chk_table_offset = _handler_table_offset; |
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815 _nmethod_end_offset = _nul_chk_table_offset; |
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816 _compile_id = 0; // default |
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817 _comp_level = CompLevel_none; |
1748 | 818 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
819 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
116
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820 _osr_entry_point = NULL; |
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821 _exception_cache = NULL; |
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822 _pc_desc_cache.reset_to(NULL); |
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823 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
116
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824 |
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825 code_buffer->copy_values_to(this); |
989
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826 debug_only(verify_scavenge_root_oops()); |
116
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827 CodeCache::commit(this); |
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828 } |
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829 |
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830 if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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831 ttyLocker ttyl; // keep the following output all in one block |
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832 // This output goes directly to the tty, not the compiler log. |
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833 // To enable tools to match it up with the compilation activity, |
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834 // be sure to tag this tty output with the compile ID. |
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835 if (xtty != NULL) { |
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836 xtty->begin_head("print_dtrace_nmethod"); |
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837 xtty->method(_method); |
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838 xtty->stamp(); |
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839 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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840 } |
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841 // print the header part first |
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842 print(); |
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843 // then print the requested information |
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844 if (PrintNMethods) { |
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845 print_code(); |
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846 } |
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847 if (PrintRelocations) { |
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848 print_relocations(); |
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849 } |
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850 if (xtty != NULL) { |
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851 xtty->tail("print_dtrace_nmethod"); |
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852 } |
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853 } |
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854 } |
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855 #endif // def HAVE_DTRACE_H |
0 | 856 |
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857 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
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858 // Not critical, may return null if there is too little continuous memory |
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859 return CodeCache::allocate(nmethod_size); |
0 | 860 } |
861 | |
862 nmethod::nmethod( | |
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863 Method* method, |
0 | 864 int nmethod_size, |
865 int compile_id, | |
866 int entry_bci, | |
867 CodeOffsets* offsets, | |
868 int orig_pc_offset, | |
869 DebugInformationRecorder* debug_info, | |
870 Dependencies* dependencies, | |
871 CodeBuffer *code_buffer, | |
872 int frame_size, | |
873 OopMapSet* oop_maps, | |
874 ExceptionHandlerTable* handler_table, | |
875 ImplicitExceptionTable* nul_chk_table, | |
876 AbstractCompiler* compiler, | |
877 int comp_level | |
9707 | 878 #ifdef GRAAL |
879 , Handle installed_code, | |
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880 Handle speculation_log |
9707 | 881 #endif |
0 | 882 ) |
883 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
884 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 885 _native_receiver_sp_offset(in_ByteSize(-1)), |
886 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
0 | 887 { |
888 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
889 { | |
890 debug_only(No_Safepoint_Verifier nsv;) | |
891 assert_locked_or_safepoint(CodeCache_lock); | |
892 | |
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893 init_defaults(); |
0 | 894 _method = method; |
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895 _entry_bci = entry_bci; |
0 | 896 _compile_id = compile_id; |
897 _comp_level = comp_level; | |
898 _compiler = compiler; | |
899 _orig_pc_offset = orig_pc_offset; | |
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900 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
1748 | 901 |
902 // Section offsets | |
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903 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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904 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
0 | 905 |
9707 | 906 #ifdef GRAAL |
907 _graal_installed_code = installed_code(); | |
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908 _speculation_log = (instanceOop)speculation_log(); |
9707 | 909 #endif |
910 if (compiler->is_graal()) { | |
911 // Graal might not produce any stub sections | |
912 if (offsets->value(CodeOffsets::Exceptions) != -1) { | |
913 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
914 } else { | |
915 _exception_offset = -1; | |
916 } | |
917 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
918 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
919 } else { | |
920 _deoptimize_offset = -1; | |
921 } | |
922 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
923 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
924 } else { | |
925 _deoptimize_mh_offset = -1; | |
926 } | |
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927 } else { |
9707 | 928 // Exception handler and deopt handler are in the stub section |
929 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); | |
930 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); | |
931 | |
932 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); | |
933 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
934 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
935 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); | |
936 } else { | |
937 _deoptimize_mh_offset = -1; | |
938 } | |
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939 } |
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940 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
1748 | 941 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
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942 } else { |
1748 | 943 _unwind_handler_offset = -1; |
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944 } |
1748 | 945 |
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946 _oops_offset = data_offset(); |
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947 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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948 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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949 |
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950 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
0 | 951 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
952 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
953 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
954 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
955 | |
1748 | 956 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
957 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
958 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
0 | 959 _exception_cache = NULL; |
960 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
961 | |
962 // Copy contents of ScopeDescRecorder to nmethod | |
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963 code_buffer->copy_values_to(this); |
0 | 964 debug_info->copy_to(this); |
965 dependencies->copy_to(this); | |
989
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966 if (ScavengeRootsInCode && detect_scavenge_root_oops()) { |
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967 CodeCache::add_scavenge_root_nmethod(this); |
12080 | 968 Universe::heap()->register_nmethod(this); |
989
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969 } |
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970 debug_only(verify_scavenge_root_oops()); |
0 | 971 |
972 CodeCache::commit(this); | |
973 | |
974 // Copy contents of ExceptionHandlerTable to nmethod | |
975 handler_table->copy_to(this); | |
976 nul_chk_table->copy_to(this); | |
977 | |
978 // we use the information of entry points to find out if a method is | |
979 // static or non static | |
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980 assert(compiler->is_c2() || compiler->is_graal() || |
0 | 981 _method->is_static() == (entry_point() == _verified_entry_point), |
982 " entry points must be same for static methods and vice versa"); | |
983 } | |
984 | |
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985 bool printnmethods = PrintNMethods |
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986 || CompilerOracle::should_print(_method) |
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987 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
0 | 988 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
989 print_nmethod(printnmethods); | |
990 } | |
991 } | |
992 | |
993 | |
994 // Print a short set of xml attributes to identify this nmethod. The | |
995 // output should be embedded in some other element. | |
996 void nmethod::log_identity(xmlStream* log) const { | |
997 log->print(" compile_id='%d'", compile_id()); | |
998 const char* nm_kind = compile_kind(); | |
999 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
1000 if (compiler() != NULL) { | |
1001 log->print(" compiler='%s'", compiler()->name()); | |
1002 } | |
1783 | 1003 if (TieredCompilation) { |
1004 log->print(" level='%d'", comp_level()); | |
1005 } | |
0 | 1006 } |
1007 | |
1008 | |
1009 #define LOG_OFFSET(log, name) \ | |
1010 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
1011 log->print(" " XSTR(name) "_offset='%d'" , \ | |
1012 (intptr_t)name##_begin() - (intptr_t)this) | |
1013 | |
1014 | |
1015 void nmethod::log_new_nmethod() const { | |
1016 if (LogCompilation && xtty != NULL) { | |
1017 ttyLocker ttyl; | |
1018 HandleMark hm; | |
1019 xtty->begin_elem("nmethod"); | |
1020 log_identity(xtty); | |
1748 | 1021 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
0 | 1022 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
1023 | |
1024 LOG_OFFSET(xtty, relocation); | |
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1025 LOG_OFFSET(xtty, consts); |
1748 | 1026 LOG_OFFSET(xtty, insts); |
0 | 1027 LOG_OFFSET(xtty, stub); |
1028 LOG_OFFSET(xtty, scopes_data); | |
1029 LOG_OFFSET(xtty, scopes_pcs); | |
1030 LOG_OFFSET(xtty, dependencies); | |
1031 LOG_OFFSET(xtty, handler_table); | |
1032 LOG_OFFSET(xtty, nul_chk_table); | |
1033 LOG_OFFSET(xtty, oops); | |
1034 | |
1035 xtty->method(method()); | |
1036 xtty->stamp(); | |
1037 xtty->end_elem(); | |
1038 } | |
1039 } | |
1040 | |
1041 #undef LOG_OFFSET | |
1042 | |
1043 | |
1044 // Print out more verbose output usually for a newly created nmethod. | |
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1045 void nmethod::print_on(outputStream* st, const char* msg) const { |
0 | 1046 if (st != NULL) { |
1047 ttyLocker ttyl; | |
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1048 if (CIPrintCompilerName) st->print("%s:", compiler()->name()); |
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1049 if (WizardMode) { |
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1050 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
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1051 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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1052 } else { |
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1053 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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1054 } |
0 | 1055 } |
1056 } | |
1057 | |
1058 | |
1059 void nmethod::print_nmethod(bool printmethod) { | |
1060 ttyLocker ttyl; // keep the following output all in one block | |
1061 if (xtty != NULL) { | |
1062 xtty->begin_head("print_nmethod"); | |
1063 xtty->stamp(); | |
1064 xtty->end_head(); | |
1065 } | |
1066 // print the header part first | |
1067 print(); | |
1068 // then print the requested information | |
1069 if (printmethod) { | |
1070 print_code(); | |
1071 print_pcs(); | |
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1072 if (oop_maps()) { |
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1073 oop_maps()->print(); |
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1074 } |
0 | 1075 } |
1076 if (PrintDebugInfo) { | |
1077 print_scopes(); | |
1078 } | |
1079 if (PrintRelocations) { | |
1080 print_relocations(); | |
1081 } | |
1082 if (PrintDependencies) { | |
1083 print_dependencies(); | |
1084 } | |
1085 if (PrintExceptionHandlers) { | |
1086 print_handler_table(); | |
1087 print_nul_chk_table(); | |
1088 } | |
1089 if (xtty != NULL) { | |
1090 xtty->tail("print_nmethod"); | |
1091 } | |
1092 } | |
1093 | |
1094 | |
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1095 // Promote one word from an assembly-time handle to a live embedded oop. |
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1096 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1097 if (handle == NULL || |
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1098 // As a special case, IC oops are initialized to 1 or -1. |
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1099 handle == (jobject) Universe::non_oop_word()) { |
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1100 (*dest) = (oop) handle; |
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1101 } else { |
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1102 (*dest) = JNIHandles::resolve_non_null(handle); |
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1103 } |
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1104 } |
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1105 |
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1106 |
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1107 // Have to have the same name because it's called by a template |
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1108 void nmethod::copy_values(GrowableArray<jobject>* array) { |
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1109 int length = array->length(); |
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1110 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
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1111 oop* dest = oops_begin(); |
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1112 for (int index = 0 ; index < length; index++) { |
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1113 initialize_immediate_oop(&dest[index], array->at(index)); |
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1114 } |
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1115 |
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1116 // Now we can fix up all the oops in the code. We need to do this |
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1117 // in the code because the assembler uses jobjects as placeholders. |
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1118 // The code and relocations have already been initialized by the |
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1119 // CodeBlob constructor, so it is valid even at this early point to |
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1120 // iterate over relocations and patch the code. |
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1121 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1122 } |
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1123 |
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1124 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1125 int length = array->length(); |
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1126 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1127 Metadata** dest = metadata_begin(); |
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1128 for (int index = 0 ; index < length; index++) { |
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1129 dest[index] = array->at(index); |
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1130 } |
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1131 } |
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1132 |
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1133 bool nmethod::is_at_poll_return(address pc) { |
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1134 RelocIterator iter(this, pc, pc+1); |
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1135 while (iter.next()) { |
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1136 if (iter.type() == relocInfo::poll_return_type) |
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1137 return true; |
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1138 } |
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1139 return false; |
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1140 } |
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1141 |
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1142 |
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1143 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1144 RelocIterator iter(this, pc, pc+1); |
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1145 while (iter.next()) { |
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1146 relocInfo::relocType t = iter.type(); |
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1147 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1148 return true; |
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1149 } |
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1150 return false; |
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1151 } |
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1152 |
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1153 |
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1154 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1155 // re-patch all oop-bearing instructions, just in case some oops moved |
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1156 RelocIterator iter(this, begin, end); |
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1157 while (iter.next()) { |
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1158 if (iter.type() == relocInfo::oop_type) { |
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1159 oop_Relocation* reloc = iter.oop_reloc(); |
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1160 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1161 oop* dest = reloc->oop_addr(); |
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1162 initialize_immediate_oop(dest, (jobject) *dest); |
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1163 } |
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1164 // Refresh the oop-related bits of this instruction. |
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1165 reloc->fix_oop_relocation(); |
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1166 } else if (iter.type() == relocInfo::metadata_type) { |
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1167 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1168 reloc->fix_metadata_relocation(); |
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1169 } |
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1170 } |
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1171 } |
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1172 |
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1173 |
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1174 void nmethod::verify_oop_relocations() { |
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1175 // Ensure sure that the code matches the current oop values |
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1176 RelocIterator iter(this, NULL, NULL); |
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1177 while (iter.next()) { |
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1178 if (iter.type() == relocInfo::oop_type) { |
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1179 oop_Relocation* reloc = iter.oop_reloc(); |
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1180 if (!reloc->oop_is_immediate()) { |
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1181 reloc->verify_oop_relocation(); |
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1182 } |
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1183 } |
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1184 } |
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1185 } |
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1186 |
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1187 |
0 | 1188 ScopeDesc* nmethod::scope_desc_at(address pc) { |
1189 PcDesc* pd = pc_desc_at(pc); | |
1190 guarantee(pd != NULL, "scope must be present"); | |
1191 return new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 1192 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
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1193 pd->return_oop()); |
0 | 1194 } |
1195 | |
1196 | |
1197 void nmethod::clear_inline_caches() { | |
1198 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
1199 if (is_zombie()) { | |
1200 return; | |
1201 } | |
1202 | |
1203 RelocIterator iter(this); | |
1204 while (iter.next()) { | |
1205 iter.reloc()->clear_inline_cache(); | |
1206 } | |
1207 } | |
1208 | |
1209 | |
1210 void nmethod::cleanup_inline_caches() { | |
1211 | |
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1212 assert_locked_or_safepoint(CompiledIC_lock); |
0 | 1213 |
1214 // If the method is not entrant or zombie then a JMP is plastered over the | |
1215 // first few bytes. If an oop in the old code was there, that oop | |
1216 // should not get GC'd. Skip the first few bytes of oops on | |
1217 // not-entrant methods. | |
1218 address low_boundary = verified_entry_point(); | |
1219 if (!is_in_use()) { | |
1220 low_boundary += NativeJump::instruction_size; | |
1221 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1222 // This means that the low_boundary is going to be a little too high. | |
1223 // This shouldn't matter, since oops of non-entrant methods are never used. | |
1224 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
1225 } | |
1226 | |
1227 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
1228 ResourceMark rm; | |
1229 RelocIterator iter(this, low_boundary); | |
1230 while(iter.next()) { | |
1231 switch(iter.type()) { | |
1232 case relocInfo::virtual_call_type: | |
1233 case relocInfo::opt_virtual_call_type: { | |
1234 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
1235 // Ok, to lookup references to zombies here | |
1236 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
1237 if( cb != NULL && cb->is_nmethod() ) { | |
1238 nmethod* nm = (nmethod*)cb; | |
1239 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1240 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
0 | 1241 } |
1242 break; | |
1243 } | |
1244 case relocInfo::static_call_type: { | |
1245 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
1246 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
1247 if( cb != NULL && cb->is_nmethod() ) { | |
1248 nmethod* nm = (nmethod*)cb; | |
1249 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1250 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
0 | 1251 } |
1252 break; | |
1253 } | |
1254 } | |
1255 } | |
1256 } | |
1257 | |
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1258 // This is a private interface with the sweeper. |
0 | 1259 void nmethod::mark_as_seen_on_stack() { |
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1260 assert(is_alive(), "Must be an alive method"); |
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1261 // Set the traversal mark to ensure that the sweeper does 2 |
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1262 // cleaning passes before moving to zombie. |
0 | 1263 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
1264 } | |
1265 | |
2342
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1266 // Tell if a non-entrant method can be converted to a zombie (i.e., |
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1267 // there are no activations on the stack, not in use by the VM, |
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1268 // and not in use by the ServiceThread) |
0 | 1269 bool nmethod::can_not_entrant_be_converted() { |
1270 assert(is_not_entrant(), "must be a non-entrant method"); | |
1271 | |
1272 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
1273 // count can be greater than the stack traversal count before it hits the | |
1274 // nmethod for the second time. | |
2342
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1275 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
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1276 !is_locked_by_vm(); |
0 | 1277 } |
1278 | |
1279 void nmethod::inc_decompile_count() { | |
9707 | 1280 if (!is_compiled_by_c2() && !is_compiled_by_graal()) return; |
0 | 1281 // Could be gated by ProfileTraps, but do not bother... |
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1282 Method* m = method(); |
0 | 1283 if (m == NULL) return; |
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1284 MethodData* mdo = m->method_data(); |
0 | 1285 if (mdo == NULL) return; |
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1286 // There is a benign race here. See comments in methodData.hpp. |
0 | 1287 mdo->inc_decompile_count(); |
1288 } | |
1289 | |
1290 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { | |
1291 | |
1292 post_compiled_method_unload(); | |
1293 | |
1294 // Since this nmethod is being unloaded, make sure that dependencies | |
1295 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
1296 // indicate that this work is being done during a GC. | |
1297 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
1298 assert(is_alive != NULL, "Should be non-NULL"); | |
1299 // A non-NULL is_alive closure indicates that this is being called during GC. | |
1300 flush_dependencies(is_alive); | |
1301 | |
1302 // Break cycle between nmethod & method | |
1303 if (TraceClassUnloading && WizardMode) { | |
1304 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
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1305 " unloadable], Method*(" INTPTR_FORMAT |
0 | 1306 "), cause(" INTPTR_FORMAT ")", |
1307 this, (address)_method, (address)cause); | |
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1308 if (!Universe::heap()->is_gc_active()) |
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1309 cause->klass()->print(); |
0 | 1310 } |
941 | 1311 // Unlink the osr method, so we do not look this up again |
1312 if (is_osr_method()) { | |
1313 invalidate_osr_method(); | |
1314 } | |
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1315 // If _method is already NULL the Method* is about to be unloaded, |
0 | 1316 // so we don't have to break the cycle. Note that it is possible to |
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1317 // have the Method* live here, in case we unload the nmethod because |
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1318 // it is pointing to some oop (other than the Method*) being unloaded. |
0 | 1319 if (_method != NULL) { |
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1320 // OSR methods point to the Method*, but the Method* does not |
0 | 1321 // point back! |
1322 if (_method->code() == this) { | |
1323 _method->clear_code(); // Break a cycle | |
1324 } | |
1325 _method = NULL; // Clear the method of this dead nmethod | |
1326 } | |
9707 | 1327 |
1328 #ifdef GRAAL | |
1329 // The method can only be unloaded after the pointer to the installed code | |
1330 // Java wrapper is no longer alive. Here we need to clear out this weak | |
1331 // reference to the dead object. | |
1332 if (_graal_installed_code != NULL) { | |
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
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|
1333 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
9707 | 1334 _graal_installed_code = NULL; |
1335 } | |
1336 #endif | |
1337 | |
0 | 1338 // Make the class unloaded - i.e., change state and notify sweeper |
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1339 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 1340 if (is_in_use()) { |
1341 // Transitioning directly from live to unloaded -- so | |
1342 // we need to force a cache clean-up; remember this | |
1343 // for later on. | |
1344 CodeCache::set_needs_cache_clean(true); | |
1345 } | |
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1346 _state = unloaded; |
0 | 1347 |
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1348 // Log the unloading. |
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1349 log_state_change(); |
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1350 |
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1351 // The Method* is gone at this point |
0 | 1352 assert(_method == NULL, "Tautology"); |
1353 | |
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1354 set_osr_link(NULL); |
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1355 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
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1356 NMethodSweeper::report_state_change(this); |
0 | 1357 } |
1358 | |
1359 void nmethod::invalidate_osr_method() { | |
1360 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
1361 // Remove from list of active nmethods | |
1362 if (method() != NULL) | |
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|
1363 method()->method_holder()->remove_osr_nmethod(this); |
0 | 1364 // Set entry as invalid |
1365 _entry_bci = InvalidOSREntryBci; | |
1366 } | |
1367 | |
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1368 void nmethod::log_state_change() const { |
0 | 1369 if (LogCompilation) { |
1370 if (xtty != NULL) { | |
1371 ttyLocker ttyl; // keep the following output all in one block | |
1644
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1372 if (_state == unloaded) { |
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1373 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
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1374 os::current_thread_id()); |
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1375 } else { |
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1376 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
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1377 os::current_thread_id(), |
1644
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1378 (_state == zombie ? " zombie='1'" : "")); |
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1379 } |
0 | 1380 log_identity(xtty); |
1381 xtty->stamp(); | |
1382 xtty->end_elem(); | |
1383 } | |
1384 } | |
1644
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1385 if (PrintCompilation && _state != unloaded) { |
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diff
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|
1386 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
0 | 1387 } |
1388 } | |
1389 | |
13074
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1390 /** |
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1391 * Common functionality for both make_not_entrant and make_zombie |
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1392 */ |
1141 | 1393 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
0 | 1394 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
2342
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1395 assert(!is_zombie(), "should not already be a zombie"); |
0 | 1396 |
1644
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1397 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
0 | 1398 nmethodLocker nml(this); |
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1399 methodHandle the_method(method()); |
1726 | 1400 No_Safepoint_Verifier nsv; |
0 | 1401 |
12080 | 1402 // during patching, depending on the nmethod state we must notify the GC that |
1403 // code has been unloaded, unregistering it. We cannot do this right while | |
1404 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
1405 // would be prone to deadlocks. | |
1406 // This flag is used to remember whether we need to later lock and unregister. | |
1407 bool nmethod_needs_unregister = false; | |
1408 | |
0 | 1409 { |
1109
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1410 // invalidate osr nmethod before acquiring the patching lock since |
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1411 // they both acquire leaf locks and we don't want a deadlock. |
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1412 // This logic is equivalent to the logic below for patching the |
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1413 // verified entry point of regular methods. |
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1414 if (is_osr_method()) { |
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1415 // this effectively makes the osr nmethod not entrant |
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1416 invalidate_osr_method(); |
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1417 } |
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1418 |
0 | 1419 // Enter critical section. Does not block for safepoint. |
1420 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
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1421 |
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1422 if (_state == state) { |
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1423 // another thread already performed this transition so nothing |
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1424 // to do, but return false to indicate this. |
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1425 return false; |
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1426 } |
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1427 |
0 | 1428 // The caller can be calling the method statically or through an inline |
1429 // cache call. | |
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1430 if (!is_osr_method() && !is_not_entrant()) { |
9707 | 1431 address stub = SharedRuntime::get_handle_wrong_method_stub(); |
1432 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), stub); | |
0 | 1433 } |
1434 | |
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1435 if (is_in_use()) { |
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1436 // It's a true state change, so mark the method as decompiled. |
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1437 // Do it only for transition from alive. |
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1438 inc_decompile_count(); |
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1439 } |
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1440 |
12080 | 1441 // If the state is becoming a zombie, signal to unregister the nmethod with |
1442 // the heap. | |
1443 // This nmethod may have already been unloaded during a full GC. | |
1444 if ((state == zombie) && !is_unloaded()) { | |
1445 nmethod_needs_unregister = true; | |
1446 } | |
1447 | |
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1448 // Must happen before state change. Otherwise we have a race condition in |
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1449 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
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1450 // transition its state from 'not_entrant' to 'zombie' without having to wait |
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1451 // for stack scanning. |
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1452 if (state == not_entrant) { |
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1453 mark_as_seen_on_stack(); |
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1454 OrderAccess::storestore(); |
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1455 } |
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1456 |
0 | 1457 // Change state |
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1458 _state = state; |
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1459 |
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1460 // Log the transition once |
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1461 log_state_change(); |
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1462 |
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6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
1463 // Remove nmethod from method. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1464 // 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
|
1465 // 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
|
1466 // in Method* as seen in bugid 4947125. |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1467 // 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
|
1468 // 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
|
1469 // through it. |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1470 if (method() != NULL && (method()->code() == this || |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1471 method()->from_compiled_entry() == verified_entry_point())) { |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1472 HandleMark hm; |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1473 method()->clear_code(); |
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1474 } |
0 | 1475 } // leave critical region under Patching_lock |
1476 | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1477 // When the nmethod becomes zombie it is no longer alive so the |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1478 // dependencies must be flushed. nmethods in the not_entrant |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1479 // state will be flushed later when the transition to zombie |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1480 // happens or they get unloaded. |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1481 if (state == zombie) { |
1726 | 1482 { |
1483 // Flushing dependecies must be done before any possible | |
1484 // safepoint can sneak in, otherwise the oops used by the | |
1485 // dependency logic could have become stale. | |
1486 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
12080 | 1487 if (nmethod_needs_unregister) { |
1488 Universe::heap()->unregister_nmethod(this); | |
1489 } | |
1726 | 1490 flush_dependencies(NULL); |
1491 } | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1492 |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1493 // 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
|
1494 // 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
|
1495 // 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
|
1496 // 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
|
1497 // 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
|
1498 post_compiled_method_unload(); |
1726 | 1499 |
1500 #ifdef ASSERT | |
1501 // It's no longer safe to access the oops section since zombie | |
1502 // nmethods aren't scanned for GC. | |
1503 _oops_are_stale = true; | |
1504 #endif | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1505 // 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
|
1506 // nmethod is in zombie state |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1507 set_method(NULL); |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1508 } else { |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1509 assert(state == not_entrant, "other cases may need to be handled differently"); |
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1510 } |
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1511 #ifdef GRAAL |
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1512 if (_graal_installed_code != NULL) { |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1513 // Break the link between nmethod and HotSpotInstalledCode such that the nmethod can subsequently be flushed safely. |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1514 HotSpotInstalledCode::set_codeBlob(_graal_installed_code, 0); |
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1515 } |
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1516 #endif |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1517 |
0 | 1518 if (TraceCreateZombies) { |
9707 | 1519 ResourceMark m; |
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1520 tty->print_cr("nmethod <" INTPTR_FORMAT "> %s code made %s", this, this->method() ? this->method()->name_and_sig_as_C_string() : "null", (state == not_entrant) ? "not entrant" : "zombie"); |
0 | 1521 } |
1522 | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1523 NMethodSweeper::report_state_change(this); |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1524 return true; |
0 | 1525 } |
1526 | |
1527 void nmethod::flush() { | |
1528 // Note that there are no valid oops in the nmethod anymore. | |
1529 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
1530 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
1531 | |
1532 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1533 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1534 |
1535 // completely deallocate this method | |
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1536 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
0 | 1537 if (PrintMethodFlushing) { |
1202 | 1538 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
1539 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
0 | 1540 } |
1541 | |
1542 // We need to deallocate any ExceptionCache data. | |
1543 // Note that we do not need to grab the nmethod lock for this, it | |
1544 // better be thread safe if we're disposing of it! | |
1545 ExceptionCache* ec = exception_cache(); | |
1546 set_exception_cache(NULL); | |
1547 while(ec != NULL) { | |
1548 ExceptionCache* next = ec->next(); | |
1549 delete ec; | |
1550 ec = next; | |
1551 } | |
1552 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1553 if (on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1554 CodeCache::drop_scavenge_root_nmethod(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1555 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1556 |
1692 | 1557 #ifdef SHARK |
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1558 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
1692 | 1559 #endif // SHARK |
1560 | |
0 | 1561 ((CodeBlob*)(this))->flush(); |
1562 | |
1563 CodeCache::free(this); | |
1564 } | |
1565 | |
1566 | |
1567 // | |
1568 // Notify all classes this nmethod is dependent on that it is no | |
1569 // longer dependent. This should only be called in two situations. | |
1570 // First, when a nmethod transitions to a zombie all dependents need | |
1571 // to be clear. Since zombification happens at a safepoint there's no | |
1572 // synchronization issues. The second place is a little more tricky. | |
1573 // During phase 1 of mark sweep class unloading may happen and as a | |
1574 // result some nmethods may get unloaded. In this case the flushing | |
1575 // of dependencies must happen during phase 1 since after GC any | |
1576 // dependencies in the unloaded nmethod won't be updated, so | |
1577 // traversing the dependency information in unsafe. In that case this | |
1578 // function is called with a non-NULL argument and this function only | |
1579 // notifies instanceKlasses that are reachable | |
1580 | |
1581 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1582 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1583 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
1584 "is_alive is non-NULL if and only if we are called during GC"); | |
1585 if (!has_flushed_dependencies()) { | |
1586 set_has_flushed_dependencies(); | |
1587 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1588 Klass* klass = deps.context_type(); |
0 | 1589 if (klass == NULL) continue; // ignore things like evol_method |
1590 | |
1591 // During GC the is_alive closure is non-NULL, and is used to | |
1592 // 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
|
1593 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
|
1594 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
0 | 1595 } |
1596 } | |
1597 } | |
1598 } | |
1599 | |
1600 | |
1601 // 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
|
1602 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
0 | 1603 assert(root != NULL, "just checking"); |
1604 oop obj = *root; | |
1605 if (obj == NULL || is_alive->do_object_b(obj)) { | |
1606 return false; | |
1607 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1608 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1609 // 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
|
1610 // 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
|
1611 // 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
|
1612 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
0 | 1613 make_unloaded(is_alive, obj); |
1614 return true; | |
1615 } | |
1616 | |
1617 // ------------------------------------------------------------------ | |
1618 // post_compiled_method_load_event | |
1619 // new method for install_code() path | |
1620 // Transfer information from compilation to jvmti | |
1621 void nmethod::post_compiled_method_load_event() { | |
1622 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1623 Method* moop = method(); |
14909 | 1624 #ifndef USDT2 |
1625 HS_DTRACE_PROBE8(hotspot, compiled__method__load, | |
1626 moop->klass_name()->bytes(), | |
1627 moop->klass_name()->utf8_length(), | |
1628 moop->name()->bytes(), | |
1629 moop->name()->utf8_length(), | |
1630 moop->signature()->bytes(), | |
1631 moop->signature()->utf8_length(), | |
1632 insts_begin(), insts_size()); | |
1633 #else /* USDT2 */ | |
4006 | 1634 HOTSPOT_COMPILED_METHOD_LOAD( |
1635 (char *) moop->klass_name()->bytes(), | |
1636 moop->klass_name()->utf8_length(), | |
1637 (char *) moop->name()->bytes(), | |
1638 moop->name()->utf8_length(), | |
1639 (char *) moop->signature()->bytes(), | |
1640 moop->signature()->utf8_length(), | |
1641 insts_begin(), insts_size()); | |
14909 | 1642 #endif /* USDT2 */ |
0 | 1643 |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1644 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
|
1645 JvmtiExport::should_post_compiled_method_unload()) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1646 get_and_cache_jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1647 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1648 |
0 | 1649 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
|
1650 // 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
|
1651 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
|
1652 JvmtiDeferredEventQueue::enqueue( |
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1653 JvmtiDeferredEvent::compiled_method_load_event(this)); |
0 | 1654 } |
1655 } | |
1656 | |
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1657 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
|
1658 if (_jmethod_id == NULL) { |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1659 // 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
|
1660 // 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
|
1661 _jmethod_id = method()->jmethod_id(); |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1662 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1663 return _jmethod_id; |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1664 } |
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1665 |
0 | 1666 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
|
1667 if (unload_reported()) { |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1668 // 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
|
1669 // 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
|
1670 return; |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1671 } |
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1672 |
0 | 1673 assert(_method != NULL && !is_unloaded(), "just checking"); |
1674 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
1675 | |
1676 // 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
|
1677 // 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
|
1678 // 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
|
1679 // 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
|
1680 // 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
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1681 // that the jmethodID is a weak reference to the Method* so if |
1616
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1682 // it's being unloaded there's no way to look it up since the weak |
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1683 // ref will have been cleared. |
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1684 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
0 | 1685 assert(!unload_reported(), "already unloaded"); |
2195
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1686 JvmtiDeferredEvent event = |
2342
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1687 JvmtiDeferredEvent::compiled_method_unload_event(this, |
2195
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1688 _jmethod_id, insts_begin()); |
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1689 if (SafepointSynchronize::is_at_safepoint()) { |
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1690 // Don't want to take the queueing lock. Add it as pending and |
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1691 // it will get enqueued later. |
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1692 JvmtiDeferredEventQueue::add_pending_event(event); |
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1693 } else { |
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1694 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1695 JvmtiDeferredEventQueue::enqueue(event); |
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1696 } |
0 | 1697 } |
1698 | |
1699 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
1700 // any time. As the nmethod is being unloaded now we mark it has | |
1701 // having the unload event reported - this will ensure that we don't | |
1702 // attempt to report the event in the unlikely scenario where the | |
1703 // event is enabled at the time the nmethod is made a zombie. | |
1704 set_unload_reported(); | |
1705 } | |
1706 | |
1707 // This is called at the end of the strong tracing/marking phase of a | |
1708 // GC to unload an nmethod if it contains otherwise unreachable | |
1709 // oops. | |
1710 | |
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1711 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
0 | 1712 // Make sure the oop's ready to receive visitors |
1713 assert(!is_zombie() && !is_unloaded(), | |
1714 "should not call follow on zombie or unloaded nmethod"); | |
1715 | |
1716 // If the method is not entrant then a JMP is plastered over the | |
1717 // first few bytes. If an oop in the old code was there, that oop | |
1718 // should not get GC'd. Skip the first few bytes of oops on | |
1719 // not-entrant methods. | |
1720 address low_boundary = verified_entry_point(); | |
1721 if (is_not_entrant()) { | |
1722 low_boundary += NativeJump::instruction_size; | |
1723 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1724 // (See comment above.) | |
1725 } | |
1726 | |
1727 // The RedefineClasses() API can cause the class unloading invariant | |
1728 // to no longer be true. See jvmtiExport.hpp for details. | |
1729 // Also, leave a debugging breadcrumb in local flag. | |
1730 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
1731 if (a_class_was_redefined) { | |
1732 // This set of the unloading_occurred flag is done before the | |
1733 // call to post_compiled_method_unload() so that the unloading | |
1734 // of this nmethod is reported. | |
1735 unloading_occurred = true; | |
1736 } | |
1737 | |
9707 | 1738 #ifdef GRAAL |
1739 // Follow Graal method | |
1740 if (_graal_installed_code != NULL) { | |
1741 if (HotSpotNmethod::isDefault(_graal_installed_code)) { | |
1742 if (!is_alive->do_object_b(_graal_installed_code)) { | |
1743 _graal_installed_code = NULL; | |
1744 } | |
1745 } else { | |
1746 if (can_unload(is_alive, (oop*)&_graal_installed_code, unloading_occurred)) { | |
1747 return; | |
1748 } | |
1749 } | |
1750 } | |
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1751 |
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1752 if (_speculation_log != NULL) { |
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1753 if (!is_alive->do_object_b(_speculation_log)) { |
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1754 _speculation_log = NULL; |
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1755 } |
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1756 } |
9707 | 1757 #endif |
1758 | |
0 | 1759 // Exception cache |
1760 ExceptionCache* ec = exception_cache(); | |
1761 while (ec != NULL) { | |
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1762 Klass* ex_klass = ec->exception_type(); |
0 | 1763 ExceptionCache* next_ec = ec->next(); |
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1764 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { |
0 | 1765 remove_from_exception_cache(ec); |
1766 } | |
1767 ec = next_ec; | |
1768 } | |
1769 | |
1770 // If class unloading occurred we first iterate over all inline caches and | |
1771 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
1772 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
1773 // iteration below. | |
1774 if (unloading_occurred) { | |
1775 RelocIterator iter(this, low_boundary); | |
1776 while(iter.next()) { | |
1777 if (iter.type() == relocInfo::virtual_call_type) { | |
1778 CompiledIC *ic = CompiledIC_at(iter.reloc()); | |
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1779 if (ic->is_icholder_call()) { |
0 | 1780 // The only exception is compiledICHolder oops which may |
1781 // yet be marked below. (We check this further below). | |
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1782 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
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1783 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
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1784 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
13441 | 1785 continue; |
1786 } | |
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1787 } else { |
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1788 Metadata* ic_oop = ic->cached_metadata(); |
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1789 if (ic_oop != NULL) { |
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1790 if (ic_oop->is_klass()) { |
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1791 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1792 continue; |
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1793 } |
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1794 } else if (ic_oop->is_method()) { |
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1795 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1796 continue; |
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1797 } |
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1798 } else { |
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1799 ShouldNotReachHere(); |
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1800 } |
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1801 } |
13441 | 1802 } |
1803 ic->set_to_clean(); | |
0 | 1804 } |
1805 } | |
1806 } | |
1807 | |
1808 // Compiled code | |
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1809 { |
0 | 1810 RelocIterator iter(this, low_boundary); |
1811 while (iter.next()) { | |
1812 if (iter.type() == relocInfo::oop_type) { | |
1813 oop_Relocation* r = iter.oop_reloc(); | |
1814 // In this loop, we must only traverse those oops directly embedded in | |
1815 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
1816 assert(1 == (r->oop_is_immediate()) + | |
1817 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1818 "oop must be found in exactly one place"); | |
1819 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
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1820 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
0 | 1821 return; |
1822 } | |
1823 } | |
1824 } | |
1825 } | |
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1826 } |
0 | 1827 |
1828 | |
1829 // Scopes | |
1830 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
1831 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1832 if (can_unload(is_alive, p, unloading_occurred)) { |
0 | 1833 return; |
1834 } | |
1835 } | |
1836 | |
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1837 // Ensure that all metadata is still alive |
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1838 verify_metadata_loaders(low_boundary, is_alive); |
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1839 } |
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1840 |
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1841 #ifdef ASSERT |
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1842 |
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1843 class CheckClass : AllStatic { |
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1844 static BoolObjectClosure* _is_alive; |
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1845 |
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1846 // Check class_loader is alive for this bit of metadata. |
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1847 static void check_class(Metadata* md) { |
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1848 Klass* klass = NULL; |
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1849 if (md->is_klass()) { |
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1850 klass = ((Klass*)md); |
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1851 } else if (md->is_method()) { |
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1852 klass = ((Method*)md)->method_holder(); |
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1853 } else if (md->is_methodData()) { |
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1854 klass = ((MethodData*)md)->method()->method_holder(); |
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1855 } else { |
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1856 md->print(); |
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1857 ShouldNotReachHere(); |
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1858 } |
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1859 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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1860 } |
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1861 public: |
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1862 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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1863 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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1864 _is_alive = is_alive; |
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1865 nm->metadata_do(check_class); |
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1866 } |
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1867 }; |
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1868 |
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1869 // This is called during a safepoint so can use static data |
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1870 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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1871 #endif // ASSERT |
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1872 |
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1873 |
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1874 // Processing of oop references should have been sufficient to keep |
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1875 // all strong references alive. Any weak references should have been |
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1876 // cleared as well. Visit all the metadata and ensure that it's |
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1877 // really alive. |
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1878 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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1879 #ifdef ASSERT |
0 | 1880 RelocIterator iter(this, low_boundary); |
1881 while (iter.next()) { | |
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1882 // static_stub_Relocations may have dangling references to |
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1883 // Method*s so trim them out here. Otherwise it looks like |
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1884 // compiled code is maintaining a link to dead metadata. |
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1885 address static_call_addr = NULL; |
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1886 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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1887 CompiledIC* cic = CompiledIC_at(iter.reloc()); |
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1888 if (!cic->is_call_to_interpreted()) { |
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1889 static_call_addr = iter.addr(); |
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1890 } |
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1891 } else if (iter.type() == relocInfo::static_call_type) { |
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1892 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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1893 if (!csc->is_call_to_interpreted()) { |
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1894 static_call_addr = iter.addr(); |
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1895 } |
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1896 } |
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1897 if (static_call_addr != NULL) { |
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1898 RelocIterator sciter(this, low_boundary); |
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1899 while (sciter.next()) { |
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1900 if (sciter.type() == relocInfo::static_stub_type && |
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1901 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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1902 sciter.static_stub_reloc()->clear_inline_cache(); |
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1903 } |
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1904 } |
0 | 1905 } |
1906 } | |
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1907 // Check that the metadata embedded in the nmethod is alive |
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1908 CheckClass::do_check_class(is_alive, this); |
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1909 #endif |
0 | 1910 } |
1911 | |
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1912 |
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1913 // Iterate over metadata calling this function. Used by RedefineClasses |
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1914 void nmethod::metadata_do(void f(Metadata*)) { |
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1915 address low_boundary = verified_entry_point(); |
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1916 if (is_not_entrant()) { |
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1917 low_boundary += NativeJump::instruction_size; |
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1918 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1919 // (See comment above.) |
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1920 } |
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1921 { |
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1922 // Visit all immediate references that are embedded in the instruction stream. |
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1923 RelocIterator iter(this, low_boundary); |
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1924 while (iter.next()) { |
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1925 if (iter.type() == relocInfo::metadata_type ) { |
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1926 metadata_Relocation* r = iter.metadata_reloc(); |
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1927 // In this lmetadata, we must only follow those metadatas directly embedded in |
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1928 // the code. Other metadatas (oop_index>0) are seen as part of |
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1929 // the metadata section below. |
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1930 assert(1 == (r->metadata_is_immediate()) + |
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1931 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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1932 "metadata must be found in exactly one place"); |
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1933 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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1934 Metadata* md = r->metadata_value(); |
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1935 f(md); |
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1936 } |
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1937 } else if (iter.type() == relocInfo::virtual_call_type) { |
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1938 // Check compiledIC holders associated with this nmethod |
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1939 CompiledIC *ic = CompiledIC_at(iter.reloc()); |
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1940 if (ic->is_icholder_call()) { |
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1941 CompiledICHolder* cichk = ic->cached_icholder(); |
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1942 f(cichk->holder_method()); |
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1943 f(cichk->holder_klass()); |
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1944 } else { |
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1945 Metadata* ic_oop = ic->cached_metadata(); |
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1946 if (ic_oop != NULL) { |
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1947 f(ic_oop); |
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1948 } |
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1949 } |
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1950 } |
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1951 } |
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1952 } |
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1953 |
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1954 // Visit the metadata section |
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1955 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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1956 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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1957 Metadata* md = *p; |
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1958 f(md); |
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1959 } |
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1960 |
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1961 // Call function Method*, not embedded in these other places. |
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1962 if (_method != NULL) f(_method); |
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1963 } |
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1964 |
12080 | 1965 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
0 | 1966 // make sure the oops ready to receive visitors |
12080 | 1967 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
1968 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
0 | 1969 |
1970 // If the method is not entrant or zombie then a JMP is plastered over the | |
1971 // first few bytes. If an oop in the old code was there, that oop | |
1972 // should not get GC'd. Skip the first few bytes of oops on | |
1973 // not-entrant methods. | |
1974 address low_boundary = verified_entry_point(); | |
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1975 if (is_not_entrant()) { |
0 | 1976 low_boundary += NativeJump::instruction_size; |
1977 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1978 // (See comment above.) | |
1979 } | |
1980 | |
9707 | 1981 #ifdef GRAAL |
1982 if (_graal_installed_code != NULL) { | |
1983 f->do_oop((oop*) &_graal_installed_code); | |
1984 } | |
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1985 if (_speculation_log != NULL) { |
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1986 f->do_oop((oop*) &_speculation_log); |
9707 | 1987 } |
1988 #endif | |
1989 | |
0 | 1990 RelocIterator iter(this, low_boundary); |
941 | 1991 |
0 | 1992 while (iter.next()) { |
1993 if (iter.type() == relocInfo::oop_type ) { | |
1994 oop_Relocation* r = iter.oop_reloc(); | |
1995 // In this loop, we must only follow those oops directly embedded in | |
1996 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
941 | 1997 assert(1 == (r->oop_is_immediate()) + |
1998 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1999 "oop must be found in exactly one place"); | |
0 | 2000 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
2001 f->do_oop(r->oop_addr()); | |
2002 } | |
2003 } | |
2004 } | |
2005 | |
2006 // Scopes | |
989
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2007 // This includes oop constants not inlined in the code stream. |
0 | 2008 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2009 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
2010 f->do_oop(p); | |
2011 } | |
2012 } | |
2013 | |
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2014 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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2015 |
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2016 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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2017 |
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2018 // An nmethod is "marked" if its _mark_link is set non-null. |
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2019 // Even if it is the end of the linked list, it will have a non-null link value, |
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2020 // as long as it is on the list. |
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2021 // This code must be MP safe, because it is used from parallel GC passes. |
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2022 bool nmethod::test_set_oops_do_mark() { |
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2023 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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2024 nmethod* observed_mark_link = _oops_do_mark_link; |
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2025 if (observed_mark_link == NULL) { |
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2026 // Claim this nmethod for this thread to mark. |
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2027 observed_mark_link = (nmethod*) |
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2028 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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2029 if (observed_mark_link == NULL) { |
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2030 |
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2031 // Atomically append this nmethod (now claimed) to the head of the list: |
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2032 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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2033 for (;;) { |
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2034 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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2035 _oops_do_mark_link = required_mark_nmethods; |
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2036 observed_mark_nmethods = (nmethod*) |
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2037 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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2038 if (observed_mark_nmethods == required_mark_nmethods) |
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2039 break; |
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2040 } |
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2041 // Mark was clear when we first saw this guy. |
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2042 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
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2043 return false; |
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2044 } |
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|
2045 } |
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2046 // On fall through, another racing thread marked this nmethod before we did. |
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|
2047 return true; |
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|
2048 } |
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|
2049 |
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2050 void nmethod::oops_do_marking_prologue() { |
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|
2051 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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2052 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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2053 // We use cmpxchg_ptr instead of regular assignment here because the user |
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2054 // may fork a bunch of threads, and we need them all to see the same state. |
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2055 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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2056 guarantee(observed == NULL, "no races in this sequential code"); |
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|
2057 } |
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|
2058 |
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2059 void nmethod::oops_do_marking_epilogue() { |
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2060 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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2061 nmethod* cur = _oops_do_mark_nmethods; |
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2062 while (cur != NMETHOD_SENTINEL) { |
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2063 assert(cur != NULL, "not NULL-terminated"); |
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2064 nmethod* next = cur->_oops_do_mark_link; |
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2065 cur->_oops_do_mark_link = NULL; |
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
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diff
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2066 cur->fix_oop_relocations(); |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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2067 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
989
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2068 cur = next; |
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2069 } |
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2070 void* required = _oops_do_mark_nmethods; |
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2071 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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2072 guarantee(observed == required, "no races in this sequential code"); |
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2073 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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|
2074 } |
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2075 |
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2076 class DetectScavengeRoot: public OopClosure { |
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2077 bool _detected_scavenge_root; |
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2078 public: |
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2079 DetectScavengeRoot() : _detected_scavenge_root(false) |
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2080 { NOT_PRODUCT(_print_nm = NULL); } |
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2081 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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2082 virtual void do_oop(oop* p) { |
148e5441d916
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2083 if ((*p) != NULL && (*p)->is_scavengable()) { |
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2084 NOT_PRODUCT(maybe_print(p)); |
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2085 _detected_scavenge_root = true; |
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|
2086 } |
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|
2087 } |
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2088 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2089 |
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|
2090 #ifndef PRODUCT |
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|
2091 nmethod* _print_nm; |
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|
2092 void maybe_print(oop* p) { |
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|
2093 if (_print_nm == NULL) return; |
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|
2094 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
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|
2095 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
989
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|
2096 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2097 (void *)(*p), (intptr_t)p); |
989
148e5441d916
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|
2098 (*p)->print(); |
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|
2099 } |
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|
2100 #endif //PRODUCT |
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|
2101 }; |
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|
2102 |
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2103 bool nmethod::detect_scavenge_root_oops() { |
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2104 DetectScavengeRoot detect_scavenge_root; |
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2105 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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2106 oops_do(&detect_scavenge_root); |
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2107 return detect_scavenge_root.detected_scavenge_root(); |
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|
2108 } |
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|
2109 |
0 | 2110 // Method that knows how to preserve outgoing arguments at call. This method must be |
2111 // called with a frame corresponding to a Java invoke | |
2112 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
1692 | 2113 #ifndef SHARK |
0 | 2114 if (!method()->is_native()) { |
2115 SimpleScopeDesc ssd(this, fr.pc()); | |
2142 | 2116 Bytecode_invoke call(ssd.method(), ssd.bci()); |
10390 | 2117 bool has_receiver = call.has_receiver(); |
2118 bool has_appendix = call.has_appendix(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2119 Symbol* signature = call.signature(); |
10390 | 2120 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
0 | 2121 } |
1692 | 2122 #endif // !SHARK |
0 | 2123 } |
2124 | |
2125 | |
2126 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
|
2127 RelocIterator iter(this, p, p + 1); |
0 | 2128 while (iter.next()) |
2129 if (iter.type() == relocInfo::oop_type) { | |
2130 return iter.oop_reloc()->oop_value(); | |
2131 } | |
2132 return NULL; | |
2133 } | |
2134 | |
2135 | |
2136 inline bool includes(void* p, void* from, void* to) { | |
2137 return from <= p && p < to; | |
2138 } | |
2139 | |
2140 | |
2141 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
2142 assert(count >= 2, "must be sentinel values, at least"); | |
2143 | |
2144 #ifdef ASSERT | |
2145 // must be sorted and unique; we do a binary search in find_pc_desc() | |
2146 int prev_offset = pcs[0].pc_offset(); | |
2147 assert(prev_offset == PcDesc::lower_offset_limit, | |
2148 "must start with a sentinel"); | |
2149 for (int i = 1; i < count; i++) { | |
2150 int this_offset = pcs[i].pc_offset(); | |
2151 assert(this_offset > prev_offset, "offsets must be sorted"); | |
2152 prev_offset = this_offset; | |
2153 } | |
2154 assert(prev_offset == PcDesc::upper_offset_limit, | |
2155 "must end with a sentinel"); | |
2156 #endif //ASSERT | |
2157 | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
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|
2158 // Search for MethodHandle invokes and tag the nmethod. |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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diff
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|
2159 for (int i = 0; i < count; i++) { |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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diff
changeset
|
2160 if (pcs[i].is_method_handle_invoke()) { |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
changeset
|
2161 set_has_method_handle_invokes(true); |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
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|
2162 break; |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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1109
diff
changeset
|
2163 } |
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1109
diff
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|
2164 } |
2083
7d9caaedafce
6990933: assert(sender_cb) failed: sanity in frame::sender_for_interpreter_frame
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1972
diff
changeset
|
2165 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
1135
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|
2166 |
0 | 2167 int size = count * sizeof(PcDesc); |
2168 assert(scopes_pcs_size() >= size, "oob"); | |
2169 memcpy(scopes_pcs_begin(), pcs, size); | |
2170 | |
2171 // Adjust the final sentinel downward. | |
2172 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
2173 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
1748 | 2174 last_pc->set_pc_offset(content_size() + 1); |
0 | 2175 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
2176 // Fill any rounding gaps with copies of the last record. | |
2177 last_pc[1] = last_pc[0]; | |
2178 } | |
2179 // The following assert could fail if sizeof(PcDesc) is not | |
2180 // an integral multiple of oopSize (the rounding term). | |
2181 // If it fails, change the logic to always allocate a multiple | |
2182 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
2183 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
2184 } | |
2185 | |
2186 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
2187 assert(scopes_data_size() >= size, "oob"); | |
2188 memcpy(scopes_data_begin(), buffer, size); | |
2189 } | |
2190 | |
2191 | |
2192 #ifdef ASSERT | |
2193 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
2194 PcDesc* lower = nm->scopes_pcs_begin(); | |
2195 PcDesc* upper = nm->scopes_pcs_end(); | |
2196 lower += 1; // exclude initial sentinel | |
2197 PcDesc* res = NULL; | |
2198 for (PcDesc* p = lower; p < upper; p++) { | |
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2199 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
0 | 2200 if (match_desc(p, pc_offset, approximate)) { |
2201 if (res == NULL) | |
2202 res = p; | |
2203 else | |
2204 res = (PcDesc*) badAddress; | |
2205 } | |
2206 } | |
2207 return res; | |
2208 } | |
2209 #endif | |
2210 | |
2211 | |
2212 // Finds a PcDesc with real-pc equal to "pc" | |
2213 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
1748 | 2214 address base_address = code_begin(); |
0 | 2215 if ((pc < base_address) || |
2216 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
2217 return NULL; // PC is wildly out of range | |
2218 } | |
2219 int pc_offset = (int) (pc - base_address); | |
2220 | |
2221 // Check the PcDesc cache if it contains the desired PcDesc | |
2222 // (This as an almost 100% hit rate.) | |
2223 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
2224 if (res != NULL) { | |
2225 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
2226 return res; | |
2227 } | |
2228 | |
2229 // Fallback algorithm: quasi-linear search for the PcDesc | |
2230 // Find the last pc_offset less than the given offset. | |
2231 // The successor must be the required match, if there is a match at all. | |
2232 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
2233 PcDesc* lower = scopes_pcs_begin(); | |
2234 PcDesc* upper = scopes_pcs_end(); | |
2235 upper -= 1; // exclude final sentinel | |
2236 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
2237 | |
2238 #define assert_LU_OK \ | |
2239 /* invariant on lower..upper during the following search: */ \ | |
2240 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
2241 assert(upper->pc_offset() >= pc_offset, "sanity") | |
2242 assert_LU_OK; | |
2243 | |
2244 // Use the last successful return as a split point. | |
2245 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
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2246 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2247 if (mid->pc_offset() < pc_offset) { |
2248 lower = mid; | |
2249 } else { | |
2250 upper = mid; | |
2251 } | |
2252 | |
2253 // Take giant steps at first (4096, then 256, then 16, then 1) | |
2254 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
2255 const int RADIX = (1 << LOG2_RADIX); | |
2256 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
2257 while ((mid = lower + step) < upper) { | |
2258 assert_LU_OK; | |
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|
2259 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2260 if (mid->pc_offset() < pc_offset) { |
2261 lower = mid; | |
2262 } else { | |
2263 upper = mid; | |
2264 break; | |
2265 } | |
2266 } | |
2267 assert_LU_OK; | |
2268 } | |
2269 | |
2270 // Sneak up on the value with a linear search of length ~16. | |
2271 while (true) { | |
2272 assert_LU_OK; | |
2273 mid = lower + 1; | |
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|
2274 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2275 if (mid->pc_offset() < pc_offset) { |
2276 lower = mid; | |
2277 } else { | |
2278 upper = mid; | |
2279 break; | |
2280 } | |
2281 } | |
2282 #undef assert_LU_OK | |
2283 | |
2284 if (match_desc(upper, pc_offset, approximate)) { | |
2285 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
2286 _pc_desc_cache.add_pc_desc(upper); | |
2287 return upper; | |
2288 } else { | |
2289 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
2290 return NULL; | |
2291 } | |
2292 } | |
2293 | |
2294 | |
14909 | 2295 bool nmethod::check_all_dependencies() { |
2296 bool found_check = false; | |
2297 // wholesale check of all dependencies | |
2298 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2299 if (deps.check_dependency() != NULL) { | |
2300 found_check = true; | |
2301 NOT_DEBUG(break); | |
0 | 2302 } |
2303 } | |
14909 | 2304 return found_check; // tell caller if we found anything |
0 | 2305 } |
2306 | |
2307 bool nmethod::check_dependency_on(DepChange& changes) { | |
2308 // What has happened: | |
2309 // 1) a new class dependee has been added | |
2310 // 2) dependee and all its super classes have been marked | |
2311 bool found_check = false; // set true if we are upset | |
2312 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2313 // Evaluate only relevant dependencies. | |
2314 if (deps.spot_check_dependency_at(changes) != NULL) { | |
2315 found_check = true; | |
2316 NOT_DEBUG(break); | |
2317 } | |
2318 } | |
2319 return found_check; | |
2320 } | |
2321 | |
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2322 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
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2323 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
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2324 Array<Method*>* dependee_methods = dependee_ik->methods(); |
0 | 2325 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2326 if (deps.type() == Dependencies::evol_method) { | |
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2327 Method* method = deps.method_argument(0); |
0 | 2328 for (int j = 0; j < dependee_methods->length(); j++) { |
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2329 if (dependee_methods->at(j) == method) { |
0 | 2330 // RC_TRACE macro has an embedded ResourceMark |
2331 RC_TRACE(0x01000000, | |
2332 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
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2333 _method->method_holder()->external_name(), |
0 | 2334 _method->name()->as_C_string(), |
2335 _method->signature()->as_C_string(), compile_id(), | |
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2336 method->method_holder()->external_name(), |
0 | 2337 method->name()->as_C_string(), |
2338 method->signature()->as_C_string())); | |
2339 if (TraceDependencies || LogCompilation) | |
2340 deps.log_dependency(dependee); | |
2341 return true; | |
2342 } | |
2343 } | |
2344 } | |
2345 } | |
2346 return false; | |
2347 } | |
2348 | |
2349 // Called from mark_for_deoptimization, when dependee is invalidated. | |
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2350 bool nmethod::is_dependent_on_method(Method* dependee) { |
0 | 2351 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2352 if (deps.type() != Dependencies::evol_method) | |
2353 continue; | |
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2354 Method* method = deps.method_argument(0); |
0 | 2355 if (method == dependee) return true; |
2356 } | |
2357 return false; | |
2358 } | |
2359 | |
2360 | |
2361 bool nmethod::is_patchable_at(address instr_addr) { | |
1748 | 2362 assert(insts_contains(instr_addr), "wrong nmethod used"); |
0 | 2363 if (is_zombie()) { |
2364 // a zombie may never be patched | |
2365 return false; | |
2366 } | |
2367 return true; | |
2368 } | |
2369 | |
2370 | |
2371 address nmethod::continuation_for_implicit_exception(address pc) { | |
2372 // Exception happened outside inline-cache check code => we are inside | |
2373 // an active nmethod => use cpc to determine a return address | |
1748 | 2374 int exception_offset = pc - code_begin(); |
0 | 2375 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
2376 #ifdef ASSERT | |
2377 if (cont_offset == 0) { | |
2378 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
2379 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
2380 HandleMark hm(thread); | |
2381 ResourceMark rm(thread); | |
2382 CodeBlob* cb = CodeCache::find_blob(pc); | |
2383 assert(cb != NULL && cb == this, ""); | |
2384 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
2385 print(); | |
2386 method()->print_codes(); | |
2387 print_code(); | |
2388 print_pcs(); | |
2389 } | |
2390 #endif | |
1250 | 2391 if (cont_offset == 0) { |
2392 // Let the normal error handling report the exception | |
2393 return NULL; | |
2394 } | |
1748 | 2395 return code_begin() + cont_offset; |
0 | 2396 } |
2397 | |
2398 | |
2399 | |
2400 void nmethod_init() { | |
2401 // make sure you didn't forget to adjust the filler fields | |
2402 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
2403 } | |
2404 | |
2405 | |
2406 //------------------------------------------------------------------------------------------- | |
2407 | |
2408 | |
2409 // QQQ might we make this work from a frame?? | |
2410 nmethodLocker::nmethodLocker(address pc) { | |
2411 CodeBlob* cb = CodeCache::find_blob(pc); | |
2412 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
2413 _nm = (nmethod*)cb; | |
2414 lock_nmethod(_nm); | |
2415 } | |
2416 | |
2342
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2417 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
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2418 // should pass zombie_ok == true. |
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2419 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
0 | 2420 if (nm == NULL) return; |
2421 Atomic::inc(&nm->_lock_count); | |
2342
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2422 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
0 | 2423 } |
2424 | |
2425 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
2426 if (nm == NULL) return; | |
2427 Atomic::dec(&nm->_lock_count); | |
2428 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
2429 } | |
2430 | |
1204 | 2431 |
2432 // ----------------------------------------------------------------------------- | |
2433 // nmethod::get_deopt_original_pc | |
2434 // | |
2435 // Return the original PC for the given PC if: | |
2436 // (a) the given PC belongs to a nmethod and | |
2437 // (b) it is a deopt PC | |
2438 address nmethod::get_deopt_original_pc(const frame* fr) { | |
2439 if (fr->cb() == NULL) return NULL; | |
2440 | |
2441 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
2442 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
2443 return nm->get_original_pc(fr); | |
2444 | |
2445 return NULL; | |
0 | 2446 } |
2447 | |
2448 | |
2449 // ----------------------------------------------------------------------------- | |
1135
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2450 // MethodHandle |
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2451 |
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2452 bool nmethod::is_method_handle_return(address return_pc) { |
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2453 if (!has_method_handle_invokes()) return false; |
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2454 PcDesc* pd = pc_desc_at(return_pc); |
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2455 if (pd == NULL) |
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2456 return false; |
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2457 return pd->is_method_handle_invoke(); |
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2458 } |
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2459 |
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2460 |
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2461 // ----------------------------------------------------------------------------- |
0 | 2462 // Verification |
2463 | |
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2464 class VerifyOopsClosure: public OopClosure { |
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2465 nmethod* _nm; |
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2466 bool _ok; |
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2467 public: |
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2468 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
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2469 bool ok() { return _ok; } |
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2470 virtual void do_oop(oop* p) { |
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2471 if ((*p) == NULL || (*p)->is_oop()) return; |
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2472 if (_ok) { |
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2473 _nm->print_nmethod(true); |
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2474 _ok = false; |
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2475 } |
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2476 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
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2477 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
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2478 } |
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2479 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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2480 }; |
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2481 |
0 | 2482 void nmethod::verify() { |
2483 | |
2484 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
2485 // seems odd. | |
2486 | |
2487 if( is_zombie() || is_not_entrant() ) | |
2488 return; | |
2489 | |
2490 // Make sure all the entry points are correctly aligned for patching. | |
2491 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
2492 | |
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2493 // assert(method()->is_oop(), "must be valid"); |
0 | 2494 |
2495 ResourceMark rm; | |
2496 | |
2497 if (!CodeCache::contains(this)) { | |
1490
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2498 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
0 | 2499 } |
2500 | |
2501 if(is_native_method() ) | |
2502 return; | |
2503 | |
2504 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
2505 if (nm != this) { | |
1490
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2506 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
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2507 this)); |
0 | 2508 } |
2509 | |
2510 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2511 if (! p->verify(this)) { | |
2512 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
2513 } | |
2514 } | |
2515 | |
989
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2516 VerifyOopsClosure voc(this); |
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2517 oops_do(&voc); |
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2518 assert(voc.ok(), "embedded oops must be OK"); |
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2519 verify_scavenge_root_oops(); |
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2520 |
0 | 2521 verify_scopes(); |
2522 } | |
2523 | |
2524 | |
2525 void nmethod::verify_interrupt_point(address call_site) { | |
13071
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|
2526 // Verify IC only when nmethod installation is finished. |
13441 | 2527 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
2528 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
13071
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|
2529 if (is_installed) { |
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|
2530 Thread *cur = Thread::current(); |
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2531 if (CompiledIC_lock->owner() == cur || |
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2532 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
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|
2533 SafepointSynchronize::is_at_safepoint())) { |
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|
2534 CompiledIC_at(this, call_site); |
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|
2535 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
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|
2536 } else { |
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2537 MutexLocker ml_verify (CompiledIC_lock); |
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|
2538 CompiledIC_at(this, call_site); |
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2539 } |
0 | 2540 } |
13071
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2541 |
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|
2542 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
0 | 2543 assert(pd != NULL, "PcDesc must exist"); |
2544 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 2545 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
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|
2546 pd->return_oop()); |
0 | 2547 !sd->is_top(); sd = sd->sender()) { |
2548 sd->verify(); | |
2549 } | |
2550 } | |
2551 | |
2552 void nmethod::verify_scopes() { | |
2553 if( !method() ) return; // Runtime stubs have no scope | |
2554 if (method()->is_native()) return; // Ignore stub methods. | |
2555 // iterate through all interrupt point | |
2556 // and verify the debug information is valid. | |
2557 RelocIterator iter((nmethod*)this); | |
2558 while (iter.next()) { | |
2559 address stub = NULL; | |
2560 switch (iter.type()) { | |
2561 case relocInfo::virtual_call_type: | |
2562 verify_interrupt_point(iter.addr()); | |
2563 break; | |
2564 case relocInfo::opt_virtual_call_type: | |
2565 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
2566 verify_interrupt_point(iter.addr()); | |
2567 break; | |
2568 case relocInfo::static_call_type: | |
2569 stub = iter.static_call_reloc()->static_stub(); | |
2570 //verify_interrupt_point(iter.addr()); | |
2571 break; | |
2572 case relocInfo::runtime_call_type: | |
2573 address destination = iter.reloc()->value(); | |
2574 // Right now there is no way to find out which entries support | |
2575 // an interrupt point. It would be nice if we had this | |
2576 // information in a table. | |
2577 break; | |
2578 } | |
2579 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
2580 } | |
2581 } | |
2582 | |
2583 | |
2584 // ----------------------------------------------------------------------------- | |
2585 // Non-product code | |
2586 #ifndef PRODUCT | |
2587 | |
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2588 class DebugScavengeRoot: public OopClosure { |
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2589 nmethod* _nm; |
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2590 bool _ok; |
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|
2591 public: |
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2592 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
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2593 bool ok() { return _ok; } |
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2594 virtual void do_oop(oop* p) { |
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2595 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
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|
2596 if (_ok) { |
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|
2597 _nm->print_nmethod(true); |
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|
2598 _ok = false; |
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|
2599 } |
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2600 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
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|
2601 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
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|
2602 (*p)->print(); |
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|
2603 } |
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|
2604 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2605 }; |
0 | 2606 |
989
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|
2607 void nmethod::verify_scavenge_root_oops() { |
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|
2608 if (!on_scavenge_root_list()) { |
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|
2609 // Actually look inside, to verify the claim that it's clean. |
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|
2610 DebugScavengeRoot debug_scavenge_root(this); |
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2611 oops_do(&debug_scavenge_root); |
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|
2612 if (!debug_scavenge_root.ok()) |
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2613 fatal("found an unadvertised bad scavengable oop in the code cache"); |
0 | 2614 } |
989
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|
2615 assert(scavenge_root_not_marked(), ""); |
0 | 2616 } |
2617 | |
100
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|
2618 #endif // PRODUCT |
0 | 2619 |
2620 // Printing operations | |
2621 | |
2622 void nmethod::print() const { | |
2623 ResourceMark rm; | |
2624 ttyLocker ttyl; // keep the following output all in one block | |
2625 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
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diff
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|
2626 tty->print("Compiled method "); |
0 | 2627 |
2628 if (is_compiled_by_c1()) { | |
2629 tty->print("(c1) "); | |
2630 } else if (is_compiled_by_c2()) { | |
2631 tty->print("(c2) "); | |
1692 | 2632 } else if (is_compiled_by_shark()) { |
2633 tty->print("(shark) "); | |
9707 | 2634 } else if (is_compiled_by_graal()) { |
2635 tty->print("(Graal) "); | |
0 | 2636 } else { |
2637 tty->print("(nm) "); | |
2638 } | |
2639 | |
2405
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|
2640 print_on(tty, NULL); |
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|
2641 |
0 | 2642 if (WizardMode) { |
2643 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
2644 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
2645 tty->print(" { "); | |
2646 if (is_in_use()) tty->print("in_use "); | |
2647 if (is_not_entrant()) tty->print("not_entrant "); | |
2648 if (is_zombie()) tty->print("zombie "); | |
2649 if (is_unloaded()) tty->print("unloaded "); | |
989
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changeset
|
2650 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
0 | 2651 tty->print_cr("}:"); |
2652 } | |
2653 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2654 (address)this, | |
2655 (address)this + size(), | |
2656 size()); | |
2657 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2658 relocation_begin(), | |
2659 relocation_end(), | |
2660 relocation_size()); | |
1762
0878d7bae69f
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1748
diff
changeset
|
2661 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
0878d7bae69f
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diff
changeset
|
2662 consts_begin(), |
0878d7bae69f
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diff
changeset
|
2663 consts_end(), |
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diff
changeset
|
2664 consts_size()); |
1748 | 2665 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2666 insts_begin(), | |
2667 insts_end(), | |
2668 insts_size()); | |
0 | 2669 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2670 stub_begin(), | |
2671 stub_end(), | |
2672 stub_size()); | |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
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1538
diff
changeset
|
2673 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
1a5913bf5e19
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diff
changeset
|
2674 oops_begin(), |
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diff
changeset
|
2675 oops_end(), |
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|
2676 oops_size()); |
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6964458: Reimplement class meta-data storage to use native memory
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|
2677 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
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|
2678 metadata_begin(), |
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|
2679 metadata_end(), |
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|
2680 metadata_size()); |
0 | 2681 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
2682 scopes_data_begin(), | |
2683 scopes_data_end(), | |
2684 scopes_data_size()); | |
2685 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2686 scopes_pcs_begin(), | |
2687 scopes_pcs_end(), | |
2688 scopes_pcs_size()); | |
2689 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2690 dependencies_begin(), | |
2691 dependencies_end(), | |
2692 dependencies_size()); | |
2693 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2694 handler_table_begin(), | |
2695 handler_table_end(), | |
2696 handler_table_size()); | |
2697 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
2698 nul_chk_table_begin(), | |
2699 nul_chk_table_end(), | |
2700 nul_chk_table_size()); | |
2701 } | |
2702 | |
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diff
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|
2703 void nmethod::print_code() { |
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diff
changeset
|
2704 HandleMark hm; |
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diff
changeset
|
2705 ResourceMark m; |
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diff
changeset
|
2706 Disassembler::decode(this); |
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diff
changeset
|
2707 } |
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|
2708 |
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|
2709 |
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changeset
|
2710 #ifndef PRODUCT |
0 | 2711 |
2712 void nmethod::print_scopes() { | |
2713 // Find the first pc desc for all scopes in the code and print it. | |
2714 ResourceMark rm; | |
2715 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2716 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
2717 continue; | |
2718 | |
2719 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
2720 sd->print_on(tty, p); | |
2721 } | |
2722 } | |
2723 | |
2724 void nmethod::print_dependencies() { | |
2725 ResourceMark rm; | |
2726 ttyLocker ttyl; // keep the following output all in one block | |
2727 tty->print_cr("Dependencies:"); | |
2728 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2729 deps.print_dependency(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
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|
2730 Klass* ctxk = deps.context_type(); |
0 | 2731 if (ctxk != NULL) { |
6983 | 2732 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
2733 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
0 | 2734 } |
2735 } | |
2736 deps.log_dependency(); // put it into the xml log also | |
2737 } | |
2738 } | |
2739 | |
2740 | |
2741 void nmethod::print_relocations() { | |
2742 ResourceMark m; // in case methods get printed via the debugger | |
2743 tty->print_cr("relocations:"); | |
2744 RelocIterator iter(this); | |
2745 iter.print(); | |
2746 if (UseRelocIndex) { | |
2747 jint* index_end = (jint*)relocation_end() - 1; | |
2748 jint index_size = *index_end; | |
2749 jint* index_start = (jint*)( (address)index_end - index_size ); | |
2750 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
2751 if (index_size > 0) { | |
2752 jint* ip; | |
2753 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
2754 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
2755 ip[0], | |
2756 ip[1], | |
2757 header_end()+ip[0], | |
2758 relocation_begin()-1+ip[1]); | |
2759 for (; ip < index_end; ip++) | |
2760 tty->print_cr(" (%d ?)", ip[0]); | |
10973
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
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10390
diff
changeset
|
2761 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
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10390
diff
changeset
|
2762 ip++; |
0 | 2763 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
2764 } | |
2765 } | |
2766 } | |
2767 | |
2768 | |
2769 void nmethod::print_pcs() { | |
2770 ResourceMark m; // in case methods get printed via debugger | |
2771 tty->print_cr("pc-bytecode offsets:"); | |
2772 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2773 p->print(this); | |
2774 } | |
2775 } | |
2776 | |
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|
2777 #endif // PRODUCT |
0 | 2778 |
2779 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
2780 RelocIterator iter(this, begin, end); | |
2781 bool have_one = false; | |
2782 while (iter.next()) { | |
2783 have_one = true; | |
2784 switch (iter.type()) { | |
2785 case relocInfo::none: return "no_reloc"; | |
2786 case relocInfo::oop_type: { | |
2787 stringStream st; | |
2788 oop_Relocation* r = iter.oop_reloc(); | |
2789 oop obj = r->oop_value(); | |
2790 st.print("oop("); | |
2791 if (obj == NULL) st.print("NULL"); | |
2792 else obj->print_value_on(&st); | |
2793 st.print(")"); | |
2794 return st.as_string(); | |
2795 } | |
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2796 case relocInfo::metadata_type: { |
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|
2797 stringStream st; |
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|
2798 metadata_Relocation* r = iter.metadata_reloc(); |
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|
2799 Metadata* obj = r->metadata_value(); |
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diff
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|
2800 st.print("metadata("); |
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|
2801 if (obj == NULL) st.print("NULL"); |
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|
2802 else obj->print_value_on(&st); |
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diff
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|
2803 st.print(")"); |
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diff
changeset
|
2804 return st.as_string(); |
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|
2805 } |
0 | 2806 case relocInfo::virtual_call_type: return "virtual_call"; |
2807 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
2808 case relocInfo::static_call_type: return "static_call"; | |
2809 case relocInfo::static_stub_type: return "static_stub"; | |
2810 case relocInfo::runtime_call_type: return "runtime_call"; | |
2811 case relocInfo::external_word_type: return "external_word"; | |
2812 case relocInfo::internal_word_type: return "internal_word"; | |
2813 case relocInfo::section_word_type: return "section_word"; | |
2814 case relocInfo::poll_type: return "poll"; | |
2815 case relocInfo::poll_return_type: return "poll_return"; | |
2816 case relocInfo::type_mask: return "type_bit_mask"; | |
2817 } | |
2818 } | |
2819 return have_one ? "other" : NULL; | |
2820 } | |
2821 | |
2822 // Return a the last scope in (begin..end] | |
2823 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
2824 PcDesc* p = pc_desc_near(begin+1); | |
2825 if (p != NULL && p->real_pc(this) <= end) { | |
2826 return new ScopeDesc(this, p->scope_decode_offset(), | |
9707 | 2827 p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
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1250
diff
changeset
|
2828 p->return_oop()); |
0 | 2829 } |
2830 return NULL; | |
2831 } | |
2832 | |
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b31471cdc53e
7200163: add CodeComments functionality to assember stubs
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6792
diff
changeset
|
2833 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
1155
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6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
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|
2834 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
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6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2835 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
9707 | 2836 if (GRAAL_ONLY(_exception_offset >= 0 &&) block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2837 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
9707 | 2838 if (GRAAL_ONLY(_deoptimize_offset >= 0 &&) block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
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4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
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diff
changeset
|
2839 |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
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diff
changeset
|
2840 if (has_method_handle_invokes()) |
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6975855: don't emit deopt MH handler in C1 if not required
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1644
diff
changeset
|
2841 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
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diff
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|
2842 |
1155
4e6abf09f540
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diff
changeset
|
2843 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
1691
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diff
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|
2844 |
1155
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6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
2845 if (block_begin == entry_point()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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1141
diff
changeset
|
2846 methodHandle m = method(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2847 if (m.not_null()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2848 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2849 m->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2850 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2851 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2852 if (m.not_null() && !is_osr_method()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2853 ResourceMark rm; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2854 int sizeargs = m->size_of_parameters(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2855 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
|
2856 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2857 { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2858 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2859 if (!m->is_static()) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2860 sig_bt[sig_index++] = T_OBJECT; // 'this' |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2861 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
|
2862 BasicType t = ss.type(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2863 sig_bt[sig_index++] = t; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2864 if (type2size[t] == 2) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2865 sig_bt[sig_index++] = T_VOID; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2866 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2867 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
|
2868 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2869 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2870 assert(sig_index == sizeargs, ""); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2871 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2872 const char* spname = "sp"; // make arch-specific? |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2873 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
|
2874 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
|
2875 int tab1 = 14, tab2 = 24; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2876 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2877 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
|
2878 bool did_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2879 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
|
2880 bool at_this = (arg_index == -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2881 bool at_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2882 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
|
2883 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
|
2884 if (at_this) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2885 stream->print(" # this: "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2886 else |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2887 stream->print(" # parm%d: ", arg_index); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2888 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2889 VMReg fst = regs[sig_index].first(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2890 VMReg snd = regs[sig_index].second(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2891 if (fst->is_reg()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2892 stream->print("%s", fst->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2893 if (snd->is_valid()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2894 stream->print(":%s", snd->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2895 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2896 } else if (fst->is_stack()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2897 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
|
2898 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
|
2899 stream->print("[%s+0x%x]", spname, offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2900 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2901 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
|
2902 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2903 stream->print(" "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2904 stream->move_to(tab2); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2905 stream->print("= "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2906 if (at_this) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2907 m->method_holder()->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2908 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2909 bool did_name = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2910 if (!at_this && ss.is_object()) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2911 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
|
2912 if (name != NULL) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2913 name->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2914 did_name = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2915 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2916 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2917 if (!did_name) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2918 stream->print("%s", type2name(t)); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2919 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2920 if (at_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2921 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2922 did_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2923 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2924 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2925 sig_index += type2size[t]; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2926 arg_index += 1; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2927 if (!at_this) ss.next(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2928 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2929 if (!did_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2930 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2931 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2932 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
|
2933 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2934 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2935 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2936 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2937 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2938 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
2939 |
0 | 2940 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
2941 // First, find an oopmap in (begin, end]. | |
2942 // We use the odd half-closed interval so that oop maps and scope descs | |
2943 // which are tied to the byte after a call are printed with the call itself. | |
1748 | 2944 address base = code_begin(); |
0 | 2945 OopMapSet* oms = oop_maps(); |
2946 if (oms != NULL) { | |
2947 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
2948 OopMap* om = oms->at(i); | |
2949 address pc = base + om->offset(); | |
2950 if (pc > begin) { | |
2951 if (pc <= end) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2952 st->move_to(column); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2953 st->print("; "); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2954 om->print_on(st); |
0 | 2955 } |
2956 break; | |
2957 } | |
2958 } | |
2959 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2960 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2961 // Print any debug info present at this pc. |
0 | 2962 ScopeDesc* sd = scope_desc_in(begin, end); |
2963 if (sd != NULL) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2964 st->move_to(column); |
0 | 2965 if (sd->bci() == SynchronizationEntryBCI) { |
2966 st->print(";*synchronization entry"); | |
2967 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2968 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2969 st->print("method is NULL"); |
0 | 2970 } else if (sd->method()->is_native()) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
2971 st->print("method is native"); |
0 | 2972 } else { |
2142 | 2973 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
0 | 2974 st->print(";*%s", Bytecodes::name(bc)); |
2975 switch (bc) { | |
2976 case Bytecodes::_invokevirtual: | |
2977 case Bytecodes::_invokespecial: | |
2978 case Bytecodes::_invokestatic: | |
2979 case Bytecodes::_invokeinterface: | |
2980 { | |
2142 | 2981 Bytecode_invoke invoke(sd->method(), sd->bci()); |
0 | 2982 st->print(" "); |
2142 | 2983 if (invoke.name() != NULL) |
2984 invoke.name()->print_symbol_on(st); | |
0 | 2985 else |
2986 st->print("<UNKNOWN>"); | |
2987 break; | |
2988 } | |
2989 case Bytecodes::_getfield: | |
2990 case Bytecodes::_putfield: | |
2991 case Bytecodes::_getstatic: | |
2992 case Bytecodes::_putstatic: | |
2993 { | |
2142 | 2994 Bytecode_field field(sd->method(), sd->bci()); |
0 | 2995 st->print(" "); |
2142 | 2996 if (field.name() != NULL) |
2997 field.name()->print_symbol_on(st); | |
0 | 2998 else |
2999 st->print("<UNKNOWN>"); | |
3000 } | |
3001 } | |
3002 } | |
3003 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3004 |
0 | 3005 // Print all scopes |
3006 for (;sd != NULL; sd = sd->sender()) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3007 st->move_to(column); |
0 | 3008 st->print("; -"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3009 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3010 st->print("method is NULL"); |
0 | 3011 } else { |
3012 sd->method()->print_short_name(st); | |
3013 } | |
3014 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
3015 if (lineno != -1) { | |
3016 st->print("@%d (line %d)", sd->bci(), lineno); | |
3017 } else { | |
3018 st->print("@%d", sd->bci()); | |
3019 } | |
3020 st->cr(); | |
3021 } | |
3022 } | |
3023 | |
3024 // Print relocation information | |
3025 const char* str = reloc_string_for(begin, end); | |
3026 if (str != NULL) { | |
3027 if (sd != NULL) st->cr(); | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3028 st->move_to(column); |
0 | 3029 st->print("; {%s}", str); |
3030 } | |
1748 | 3031 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
0 | 3032 if (cont_offset != 0) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3033 st->move_to(column); |
1748 | 3034 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
0 | 3035 } |
3036 | |
3037 } | |
3038 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3039 #ifndef PRODUCT |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3040 |
0 | 3041 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
|
3042 st->print("nmethod"); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3043 print_on(st, NULL); |
0 | 3044 } |
3045 | |
3046 void nmethod::print_calls(outputStream* st) { | |
3047 RelocIterator iter(this); | |
3048 while (iter.next()) { | |
3049 switch (iter.type()) { | |
3050 case relocInfo::virtual_call_type: | |
3051 case relocInfo::opt_virtual_call_type: { | |
3052 VerifyMutexLocker mc(CompiledIC_lock); | |
3053 CompiledIC_at(iter.reloc())->print(); | |
3054 break; | |
3055 } | |
3056 case relocInfo::static_call_type: | |
3057 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
3058 compiledStaticCall_at(iter.reloc())->print(); | |
3059 break; | |
3060 } | |
3061 } | |
3062 } | |
3063 | |
3064 void nmethod::print_handler_table() { | |
3065 ExceptionHandlerTable(this).print(); | |
3066 } | |
3067 | |
3068 void nmethod::print_nul_chk_table() { | |
1748 | 3069 ImplicitExceptionTable(this).print(code_begin()); |
0 | 3070 } |
14733
b10e42998d01
nmethod: fix -XX:+PrintNMethodStatistics
Bernhard Urban <bernhard.urban@jku.at>
parents:
14726
diff
changeset
|
3071 #endif // PRODUCT |
0 | 3072 |
3073 void nmethod::print_statistics() { | |
3074 ttyLocker ttyl; | |
3075 if (xtty != NULL) xtty->head("statistics type='nmethod'"); | |
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3076 native_nmethod_stats.print_native_nmethod_stats(); |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3077 #ifdef COMPILER1 |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3078 c1_java_nmethod_stats.print_nmethod_stats("C1"); |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3079 #endif |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3080 #ifdef COMPILER2 |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3081 c2_java_nmethod_stats.print_nmethod_stats("C2"); |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3082 #endif |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3083 #ifdef GRAAL |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3084 graal_java_nmethod_stats.print_nmethod_stats("Graal"); |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3085 #endif |
12758
ca33948fb804
nmethod.cpp: s/unknwon/unknown/
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12704
diff
changeset
|
3086 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
0 | 3087 DebugInformationRecorder::print_statistics(); |
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3088 pc_nmethod_stats.print_pc_stats(); |
0 | 3089 Dependencies::print_statistics(); |
3090 if (xtty != NULL) xtty->tail("statistics"); | |
3091 } |