Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/nmethod.cpp @ 22725:eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Thu, 05 Nov 2015 15:21:30 -0800 |
parents | 456800cd1a17 |
children | 2dea101cdfe9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "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" |
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40 #include "runtime/orderAccess.inline.hpp" |
1972 | 41 #include "runtime/sharedRuntime.hpp" |
42 #include "runtime/sweeper.hpp" | |
43 #include "utilities/dtrace.hpp" | |
44 #include "utilities/events.hpp" | |
45 #include "utilities/xmlstream.hpp" | |
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46 #ifdef TARGET_ARCH_x86 |
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47 # include "nativeInst_x86.hpp" |
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48 #endif |
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49 #ifdef TARGET_ARCH_sparc |
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50 # include "nativeInst_sparc.hpp" |
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51 #endif |
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52 #ifdef TARGET_ARCH_zero |
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53 # include "nativeInst_zero.hpp" |
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54 #endif |
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55 #ifdef TARGET_ARCH_arm |
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56 # include "nativeInst_arm.hpp" |
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57 #endif |
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58 #ifdef TARGET_ARCH_ppc |
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59 # include "nativeInst_ppc.hpp" |
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60 #endif |
1972 | 61 #ifdef SHARK |
62 #include "shark/sharkCompiler.hpp" | |
63 #endif | |
22298 | 64 #if INCLUDE_JVMCI |
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65 #include "jvmci/jvmciJavaClasses.hpp" |
9707 | 66 #endif |
0 | 67 |
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68 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC |
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69 |
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70 unsigned char nmethod::_global_unloading_clock = 0; |
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71 |
0 | 72 #ifdef DTRACE_ENABLED |
73 | |
74 // Only bother with this argument setup if dtrace is available | |
75 | |
4006 | 76 #ifndef USDT2 |
0 | 77 HS_DTRACE_PROBE_DECL8(hotspot, compiled__method__load, |
78 const char*, int, const char*, int, const char*, int, void*, size_t); | |
79 | |
80 HS_DTRACE_PROBE_DECL6(hotspot, compiled__method__unload, | |
81 char*, int, char*, int, char*, int); | |
82 | |
83 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
84 { \ | |
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85 Method* m = (method); \ |
0 | 86 if (m != NULL) { \ |
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87 Symbol* klass_name = m->klass_name(); \ |
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88 Symbol* name = m->name(); \ |
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89 Symbol* signature = m->signature(); \ |
0 | 90 HS_DTRACE_PROBE6(hotspot, compiled__method__unload, \ |
91 klass_name->bytes(), klass_name->utf8_length(), \ | |
92 name->bytes(), name->utf8_length(), \ | |
93 signature->bytes(), signature->utf8_length()); \ | |
94 } \ | |
95 } | |
4006 | 96 #else /* USDT2 */ |
97 #define DTRACE_METHOD_UNLOAD_PROBE(method) \ | |
98 { \ | |
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99 Method* m = (method); \ |
4006 | 100 if (m != NULL) { \ |
101 Symbol* klass_name = m->klass_name(); \ | |
102 Symbol* name = m->name(); \ | |
103 Symbol* signature = m->signature(); \ | |
104 HOTSPOT_COMPILED_METHOD_UNLOAD( \ | |
105 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
106 (char *) name->bytes(), name->utf8_length(), \ | |
107 (char *) signature->bytes(), signature->utf8_length()); \ | |
108 } \ | |
109 } | |
110 #endif /* USDT2 */ | |
0 | 111 |
112 #else // ndef DTRACE_ENABLED | |
113 | |
114 #define DTRACE_METHOD_UNLOAD_PROBE(method) | |
115 | |
116 #endif | |
117 | |
118 bool nmethod::is_compiled_by_c1() const { | |
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119 if (compiler() == NULL) { |
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120 return false; |
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121 } |
0 | 122 return compiler()->is_c1(); |
123 } | |
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124 bool nmethod::is_compiled_by_jvmci() const { |
9707 | 125 if (compiler() == NULL || method() == NULL) return false; // can happen during debug printing |
126 if (is_native_method()) return false; | |
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127 return compiler()->is_jvmci(); |
9707 | 128 } |
0 | 129 bool nmethod::is_compiled_by_c2() const { |
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130 if (compiler() == NULL) { |
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131 return false; |
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132 } |
0 | 133 return compiler()->is_c2(); |
134 } | |
1692 | 135 bool nmethod::is_compiled_by_shark() const { |
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136 if (compiler() == NULL) { |
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137 return false; |
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138 } |
1692 | 139 return compiler()->is_shark(); |
140 } | |
0 | 141 |
142 | |
143 | |
144 //--------------------------------------------------------------------------------- | |
145 // NMethod statistics | |
146 // They are printed under various flags, including: | |
147 // PrintC1Statistics, PrintOptoStatistics, LogVMOutput, and LogCompilation. | |
148 // (In the latter two cases, they like other stats are printed to the log only.) | |
149 | |
150 // These variables are put into one block to reduce relocations | |
151 // and make it simpler to print from the debugger. | |
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152 struct java_nmethod_stats_struct { |
0 | 153 int nmethod_count; |
154 int total_size; | |
155 int relocation_size; | |
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156 int consts_size; |
1748 | 157 int insts_size; |
0 | 158 int stub_size; |
159 int scopes_data_size; | |
160 int scopes_pcs_size; | |
161 int dependencies_size; | |
162 int handler_table_size; | |
163 int nul_chk_table_size; | |
164 int oops_size; | |
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165 int metadata_size; |
0 | 166 |
167 void note_nmethod(nmethod* nm) { | |
168 nmethod_count += 1; | |
169 total_size += nm->size(); | |
170 relocation_size += nm->relocation_size(); | |
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171 consts_size += nm->consts_size(); |
1748 | 172 insts_size += nm->insts_size(); |
0 | 173 stub_size += nm->stub_size(); |
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174 oops_size += nm->oops_size(); |
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175 metadata_size += nm->metadata_size(); |
0 | 176 scopes_data_size += nm->scopes_data_size(); |
177 scopes_pcs_size += nm->scopes_pcs_size(); | |
178 dependencies_size += nm->dependencies_size(); | |
179 handler_table_size += nm->handler_table_size(); | |
180 nul_chk_table_size += nm->nul_chk_table_size(); | |
181 } | |
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182 void print_nmethod_stats(const char* name) { |
0 | 183 if (nmethod_count == 0) return; |
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184 tty->print_cr("Statistics for %d bytecoded nmethods for %s:", nmethod_count, name); |
0 | 185 if (total_size != 0) tty->print_cr(" total in heap = %d", total_size); |
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186 if (nmethod_count != 0) tty->print_cr(" header = %d", nmethod_count * sizeof(nmethod)); |
0 | 187 if (relocation_size != 0) tty->print_cr(" relocation = %d", relocation_size); |
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188 if (consts_size != 0) tty->print_cr(" constants = %d", consts_size); |
1748 | 189 if (insts_size != 0) tty->print_cr(" main code = %d", insts_size); |
0 | 190 if (stub_size != 0) tty->print_cr(" stub code = %d", stub_size); |
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191 if (oops_size != 0) tty->print_cr(" oops = %d", oops_size); |
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192 if (metadata_size != 0) tty->print_cr(" metadata = %d", metadata_size); |
0 | 193 if (scopes_data_size != 0) tty->print_cr(" scopes data = %d", scopes_data_size); |
194 if (scopes_pcs_size != 0) tty->print_cr(" scopes pcs = %d", scopes_pcs_size); | |
195 if (dependencies_size != 0) tty->print_cr(" dependencies = %d", dependencies_size); | |
196 if (handler_table_size != 0) tty->print_cr(" handler table = %d", handler_table_size); | |
197 if (nul_chk_table_size != 0) tty->print_cr(" nul chk table = %d", nul_chk_table_size); | |
198 } | |
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199 }; |
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200 |
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201 struct native_nmethod_stats_struct { |
0 | 202 int native_nmethod_count; |
203 int native_total_size; | |
204 int native_relocation_size; | |
1748 | 205 int native_insts_size; |
0 | 206 int native_oops_size; |
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207 int native_metadata_size; |
0 | 208 void note_native_nmethod(nmethod* nm) { |
209 native_nmethod_count += 1; | |
210 native_total_size += nm->size(); | |
211 native_relocation_size += nm->relocation_size(); | |
1748 | 212 native_insts_size += nm->insts_size(); |
0 | 213 native_oops_size += nm->oops_size(); |
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214 native_metadata_size += nm->metadata_size(); |
0 | 215 } |
216 void print_native_nmethod_stats() { | |
217 if (native_nmethod_count == 0) return; | |
218 tty->print_cr("Statistics for %d native nmethods:", native_nmethod_count); | |
219 if (native_total_size != 0) tty->print_cr(" N. total size = %d", native_total_size); | |
220 if (native_relocation_size != 0) tty->print_cr(" N. relocation = %d", native_relocation_size); | |
1748 | 221 if (native_insts_size != 0) tty->print_cr(" N. main code = %d", native_insts_size); |
0 | 222 if (native_oops_size != 0) tty->print_cr(" N. oops = %d", native_oops_size); |
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223 if (native_metadata_size != 0) tty->print_cr(" N. metadata = %d", native_metadata_size); |
0 | 224 } |
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225 }; |
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226 |
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227 struct pc_nmethod_stats_struct { |
0 | 228 int pc_desc_resets; // number of resets (= number of caches) |
229 int pc_desc_queries; // queries to nmethod::find_pc_desc | |
230 int pc_desc_approx; // number of those which have approximate true | |
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231 int pc_desc_repeats; // number of _pc_descs[0] hits |
0 | 232 int pc_desc_hits; // number of LRU cache hits |
233 int pc_desc_tests; // total number of PcDesc examinations | |
234 int pc_desc_searches; // total number of quasi-binary search steps | |
235 int pc_desc_adds; // number of LUR cache insertions | |
236 | |
237 void print_pc_stats() { | |
238 tty->print_cr("PcDesc Statistics: %d queries, %.2f comparisons per query", | |
239 pc_desc_queries, | |
240 (double)(pc_desc_tests + pc_desc_searches) | |
241 / pc_desc_queries); | |
242 tty->print_cr(" caches=%d queries=%d/%d, hits=%d+%d, tests=%d+%d, adds=%d", | |
243 pc_desc_resets, | |
244 pc_desc_queries, pc_desc_approx, | |
245 pc_desc_repeats, pc_desc_hits, | |
246 pc_desc_tests, pc_desc_searches, pc_desc_adds); | |
247 } | |
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248 }; |
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249 |
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250 #ifdef COMPILER1 |
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251 static java_nmethod_stats_struct c1_java_nmethod_stats; |
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252 #endif |
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253 #ifdef COMPILER2 |
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254 static java_nmethod_stats_struct c2_java_nmethod_stats; |
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255 #endif |
22298 | 256 #if INCLUDE_JVMCI |
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257 static java_nmethod_stats_struct jvmci_java_nmethod_stats; |
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258 #endif |
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259 #ifdef SHARK |
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260 static java_nmethod_stats_struct shark_java_nmethod_stats; |
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261 #endif |
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262 static java_nmethod_stats_struct unknown_java_nmethod_stats; |
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263 |
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264 static native_nmethod_stats_struct native_nmethod_stats; |
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265 static pc_nmethod_stats_struct pc_nmethod_stats; |
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266 |
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267 static void note_native_wrapper_nmethod(nmethod* nm) { |
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268 native_nmethod_stats.note_native_nmethod(nm); |
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269 } |
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270 |
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271 static void note_java_nmethod(nmethod* nm) { |
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272 #ifdef COMPILER1 |
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273 if (nm->is_compiled_by_c1()) { |
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274 c1_java_nmethod_stats.note_nmethod(nm); |
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275 } else |
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276 #endif |
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277 #ifdef COMPILER2 |
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278 if (nm->is_compiled_by_c2()) { |
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279 c2_java_nmethod_stats.note_nmethod(nm); |
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280 } else |
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281 #endif |
22298 | 282 #if INCLUDE_JVMCI |
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283 if (nm->is_compiled_by_jvmci()) { |
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284 jvmci_java_nmethod_stats.note_nmethod(nm); |
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285 } else |
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286 #endif |
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287 #ifdef SHARK |
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288 if (nm->is_compiled_by_shark()) { |
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289 shark_java_nmethod_stats.note_nmethod(nm); |
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290 } else |
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291 #endif |
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292 { |
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293 unknown_java_nmethod_stats.note_nmethod(nm); |
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294 } |
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295 } |
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296 |
0 | 297 //--------------------------------------------------------------------------------- |
298 | |
299 | |
300 ExceptionCache::ExceptionCache(Handle exception, address pc, address handler) { | |
301 assert(pc != NULL, "Must be non null"); | |
302 assert(exception.not_null(), "Must be non null"); | |
303 assert(handler != NULL, "Must be non null"); | |
304 | |
305 _count = 0; | |
306 _exception_type = exception->klass(); | |
307 _next = NULL; | |
308 | |
309 add_address_and_handler(pc,handler); | |
310 } | |
311 | |
312 | |
313 address ExceptionCache::match(Handle exception, address pc) { | |
314 assert(pc != NULL,"Must be non null"); | |
315 assert(exception.not_null(),"Must be non null"); | |
316 if (exception->klass() == exception_type()) { | |
317 return (test_address(pc)); | |
318 } | |
319 | |
320 return NULL; | |
321 } | |
322 | |
323 | |
324 bool ExceptionCache::match_exception_with_space(Handle exception) { | |
325 assert(exception.not_null(),"Must be non null"); | |
326 if (exception->klass() == exception_type() && count() < cache_size) { | |
327 return true; | |
328 } | |
329 return false; | |
330 } | |
331 | |
332 | |
333 address ExceptionCache::test_address(address addr) { | |
334 for (int i=0; i<count(); i++) { | |
335 if (pc_at(i) == addr) { | |
336 return handler_at(i); | |
337 } | |
338 } | |
339 return NULL; | |
340 } | |
341 | |
342 | |
343 bool ExceptionCache::add_address_and_handler(address addr, address handler) { | |
344 if (test_address(addr) == handler) return true; | |
345 if (count() < cache_size) { | |
346 set_pc_at(count(),addr); | |
347 set_handler_at(count(), handler); | |
348 increment_count(); | |
349 return true; | |
350 } | |
351 return false; | |
352 } | |
353 | |
354 | |
355 // private method for handling exception cache | |
356 // These methods are private, and used to manipulate the exception cache | |
357 // directly. | |
358 ExceptionCache* nmethod::exception_cache_entry_for_exception(Handle exception) { | |
359 ExceptionCache* ec = exception_cache(); | |
360 while (ec != NULL) { | |
361 if (ec->match_exception_with_space(exception)) { | |
362 return ec; | |
363 } | |
364 ec = ec->next(); | |
365 } | |
366 return NULL; | |
367 } | |
368 | |
369 | |
370 //----------------------------------------------------------------------------- | |
371 | |
372 | |
373 // Helper used by both find_pc_desc methods. | |
374 static inline bool match_desc(PcDesc* pc, int pc_offset, bool approximate) { | |
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375 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_tests); |
0 | 376 if (!approximate) |
377 return pc->pc_offset() == pc_offset; | |
378 else | |
379 return (pc-1)->pc_offset() < pc_offset && pc_offset <= pc->pc_offset(); | |
380 } | |
381 | |
382 void PcDescCache::reset_to(PcDesc* initial_pc_desc) { | |
383 if (initial_pc_desc == NULL) { | |
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384 _pc_descs[0] = NULL; // native method; no PcDescs at all |
0 | 385 return; |
386 } | |
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387 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_resets); |
0 | 388 // reset the cache by filling it with benign (non-null) values |
389 assert(initial_pc_desc->pc_offset() < 0, "must be sentinel"); | |
390 for (int i = 0; i < cache_size; i++) | |
391 _pc_descs[i] = initial_pc_desc; | |
392 } | |
393 | |
394 PcDesc* PcDescCache::find_pc_desc(int pc_offset, bool approximate) { | |
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395 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_queries); |
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396 NOT_PRODUCT(if (approximate) ++pc_nmethod_stats.pc_desc_approx); |
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397 |
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398 // Note: one might think that caching the most recently |
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399 // read value separately would be a win, but one would be |
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400 // wrong. When many threads are updating it, the cache |
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401 // line it's in would bounce between caches, negating |
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402 // any benefit. |
0 | 403 |
404 // In order to prevent race conditions do not load cache elements | |
405 // repeatedly, but use a local copy: | |
406 PcDesc* res; | |
407 | |
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408 // Step one: Check the most recently added value. |
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409 res = _pc_descs[0]; |
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410 if (res == NULL) return NULL; // native method; no PcDescs at all |
0 | 411 if (match_desc(res, pc_offset, approximate)) { |
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412 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_repeats); |
0 | 413 return res; |
414 } | |
415 | |
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416 // Step two: Check the rest of the LRU cache. |
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417 for (int i = 1; i < cache_size; ++i) { |
0 | 418 res = _pc_descs[i]; |
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419 if (res->pc_offset() < 0) break; // optimization: skip empty cache |
0 | 420 if (match_desc(res, pc_offset, approximate)) { |
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421 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_hits); |
0 | 422 return res; |
423 } | |
424 } | |
425 | |
426 // Report failure. | |
427 return NULL; | |
428 } | |
429 | |
430 void PcDescCache::add_pc_desc(PcDesc* pc_desc) { | |
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431 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_adds); |
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432 // Update the LRU cache by shifting pc_desc forward. |
0 | 433 for (int i = 0; i < cache_size; i++) { |
434 PcDesc* next = _pc_descs[i]; | |
435 _pc_descs[i] = pc_desc; | |
436 pc_desc = next; | |
437 } | |
438 } | |
439 | |
440 // adjust pcs_size so that it is a multiple of both oopSize and | |
441 // sizeof(PcDesc) (assumes that if sizeof(PcDesc) is not a multiple | |
442 // of oopSize, then 2*sizeof(PcDesc) is) | |
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443 static int adjust_pcs_size(int pcs_size) { |
0 | 444 int nsize = round_to(pcs_size, oopSize); |
445 if ((nsize % sizeof(PcDesc)) != 0) { | |
446 nsize = pcs_size + sizeof(PcDesc); | |
447 } | |
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448 assert((nsize % oopSize) == 0, "correct alignment"); |
0 | 449 return nsize; |
450 } | |
451 | |
452 //----------------------------------------------------------------------------- | |
453 | |
454 | |
455 void nmethod::add_exception_cache_entry(ExceptionCache* new_entry) { | |
456 assert(ExceptionCache_lock->owned_by_self(),"Must hold the ExceptionCache_lock"); | |
457 assert(new_entry != NULL,"Must be non null"); | |
458 assert(new_entry->next() == NULL, "Must be null"); | |
459 | |
460 if (exception_cache() != NULL) { | |
461 new_entry->set_next(exception_cache()); | |
462 } | |
463 set_exception_cache(new_entry); | |
464 } | |
465 | |
20269 | 466 void nmethod::clean_exception_cache(BoolObjectClosure* is_alive) { |
0 | 467 ExceptionCache* prev = NULL; |
468 ExceptionCache* curr = exception_cache(); | |
20269 | 469 |
470 while (curr != NULL) { | |
471 ExceptionCache* next = curr->next(); | |
472 | |
473 Klass* ex_klass = curr->exception_type(); | |
474 if (ex_klass != NULL && !ex_klass->is_loader_alive(is_alive)) { | |
475 if (prev == NULL) { | |
476 set_exception_cache(next); | |
477 } else { | |
478 prev->set_next(next); | |
479 } | |
480 delete curr; | |
481 // prev stays the same. | |
482 } else { | |
483 prev = curr; | |
484 } | |
485 | |
486 curr = next; | |
0 | 487 } |
488 } | |
489 | |
490 // public method for accessing the exception cache | |
491 // These are the public access methods. | |
492 address nmethod::handler_for_exception_and_pc(Handle exception, address pc) { | |
493 // We never grab a lock to read the exception cache, so we may | |
494 // have false negatives. This is okay, as it can only happen during | |
495 // the first few exception lookups for a given nmethod. | |
496 ExceptionCache* ec = exception_cache(); | |
497 while (ec != NULL) { | |
498 address ret_val; | |
499 if ((ret_val = ec->match(exception,pc)) != NULL) { | |
500 return ret_val; | |
501 } | |
502 ec = ec->next(); | |
503 } | |
504 return NULL; | |
505 } | |
506 | |
507 | |
508 void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, address handler) { | |
509 // There are potential race conditions during exception cache updates, so we | |
510 // must own the ExceptionCache_lock before doing ANY modifications. Because | |
605 | 511 // we don't lock during reads, it is possible to have several threads attempt |
0 | 512 // to update the cache with the same data. We need to check for already inserted |
513 // copies of the current data before adding it. | |
514 | |
515 MutexLocker ml(ExceptionCache_lock); | |
516 ExceptionCache* target_entry = exception_cache_entry_for_exception(exception); | |
517 | |
518 if (target_entry == NULL || !target_entry->add_address_and_handler(pc,handler)) { | |
519 target_entry = new ExceptionCache(exception,pc,handler); | |
520 add_exception_cache_entry(target_entry); | |
521 } | |
522 } | |
523 | |
524 | |
525 //-------------end of code for ExceptionCache-------------- | |
526 | |
527 | |
528 int nmethod::total_size() const { | |
529 return | |
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530 consts_size() + |
1748 | 531 insts_size() + |
0 | 532 stub_size() + |
533 scopes_data_size() + | |
534 scopes_pcs_size() + | |
535 handler_table_size() + | |
536 nul_chk_table_size(); | |
537 } | |
538 | |
539 const char* nmethod::compile_kind() const { | |
540 if (is_osr_method()) return "osr"; | |
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541 if (method() != NULL && is_native_method()) return "c2n"; |
0 | 542 return NULL; |
543 } | |
544 | |
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545 // Fill in default values for various flag fields |
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546 void nmethod::init_defaults() { |
13441 | 547 _state = in_use; |
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548 _unloading_clock = 0; |
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549 _marked_for_reclamation = 0; |
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550 _has_flushed_dependencies = 0; |
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551 _has_unsafe_access = 0; |
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552 _has_method_handle_invokes = 0; |
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553 _lazy_critical_native = 0; |
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554 _has_wide_vectors = 0; |
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555 _marked_for_deoptimization = 0; |
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556 _lock_count = 0; |
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557 _stack_traversal_mark = 0; |
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558 _unload_reported = false; // jvmti state |
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559 |
1726 | 560 #ifdef ASSERT |
561 _oops_are_stale = false; | |
562 #endif | |
563 | |
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564 _oops_do_mark_link = NULL; |
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565 _jmethod_id = NULL; |
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566 _osr_link = NULL; |
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567 if (UseG1GC) { |
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568 _unloading_next = NULL; |
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569 } else { |
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570 _scavenge_root_link = NULL; |
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571 } |
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572 _scavenge_root_state = 0; |
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573 _compiler = NULL; |
17780 | 574 #if INCLUDE_RTM_OPT |
575 _rtm_state = NoRTM; | |
576 #endif | |
22298 | 577 #if INCLUDE_JVMCI |
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578 _jvmci_installed_code = NULL; |
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579 _speculation_log = NULL; |
9707 | 580 #endif |
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581 #ifdef HAVE_DTRACE_H |
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582 _trap_offset = 0; |
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583 #endif // def HAVE_DTRACE_H |
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584 } |
0 | 585 |
586 nmethod* nmethod::new_native_nmethod(methodHandle method, | |
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587 int compile_id, |
0 | 588 CodeBuffer *code_buffer, |
589 int vep_offset, | |
590 int frame_complete, | |
591 int frame_size, | |
592 ByteSize basic_lock_owner_sp_offset, | |
593 ByteSize basic_lock_sp_offset, | |
594 OopMapSet* oop_maps) { | |
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595 code_buffer->finalize_oop_references(method); |
0 | 596 // create nmethod |
597 nmethod* nm = NULL; | |
598 { | |
599 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
600 int native_nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); | |
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601 CodeOffsets offsets; |
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602 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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603 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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604 nm = new (native_nmethod_size) nmethod(method(), native_nmethod_size, |
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605 compile_id, &offsets, |
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606 code_buffer, frame_size, |
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607 basic_lock_owner_sp_offset, |
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608 basic_lock_sp_offset, oop_maps); |
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609 if (nm != NULL) note_native_wrapper_nmethod(nm); |
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610 if (PrintAssembly && nm != NULL) { |
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611 Disassembler::decode(nm); |
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612 } |
0 | 613 } |
614 // verify nmethod | |
615 debug_only(if (nm) nm->verify();) // might block | |
616 | |
617 if (nm != NULL) { | |
618 nm->log_new_nmethod(); | |
619 } | |
620 | |
621 return nm; | |
622 } | |
623 | |
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624 #ifdef HAVE_DTRACE_H |
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625 nmethod* nmethod::new_dtrace_nmethod(methodHandle method, |
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626 CodeBuffer *code_buffer, |
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627 int vep_offset, |
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628 int trap_offset, |
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629 int frame_complete, |
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630 int frame_size) { |
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631 code_buffer->finalize_oop_references(method); |
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632 // create nmethod |
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633 nmethod* nm = NULL; |
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634 { |
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635 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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636 int nmethod_size = allocation_size(code_buffer, sizeof(nmethod)); |
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637 CodeOffsets offsets; |
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638 offsets.set_value(CodeOffsets::Verified_Entry, vep_offset); |
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639 offsets.set_value(CodeOffsets::Dtrace_trap, trap_offset); |
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640 offsets.set_value(CodeOffsets::Frame_Complete, frame_complete); |
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641 |
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642 nm = new (nmethod_size) nmethod(method(), nmethod_size, |
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643 &offsets, code_buffer, frame_size); |
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644 |
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645 if (nm != NULL) note_java_nmethod(nm); |
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646 if (PrintAssembly && nm != NULL) { |
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647 Disassembler::decode(nm); |
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648 } |
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649 } |
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650 // verify nmethod |
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651 debug_only(if (nm) nm->verify();) // might block |
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652 |
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653 if (nm != NULL) { |
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654 nm->log_new_nmethod(); |
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655 } |
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656 |
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657 return nm; |
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658 } |
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659 |
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660 #endif // def HAVE_DTRACE_H |
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661 |
0 | 662 nmethod* nmethod::new_nmethod(methodHandle method, |
663 int compile_id, | |
664 int entry_bci, | |
665 CodeOffsets* offsets, | |
666 int orig_pc_offset, | |
667 DebugInformationRecorder* debug_info, | |
668 Dependencies* dependencies, | |
669 CodeBuffer* code_buffer, int frame_size, | |
670 OopMapSet* oop_maps, | |
671 ExceptionHandlerTable* handler_table, | |
672 ImplicitExceptionTable* nul_chk_table, | |
673 AbstractCompiler* compiler, | |
674 int comp_level | |
22298 | 675 #if INCLUDE_JVMCI |
9707 | 676 , Handle installed_code, |
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677 Handle speculationLog |
9707 | 678 #endif |
0 | 679 ) |
680 { | |
681 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
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682 code_buffer->finalize_oop_references(method); |
0 | 683 // create nmethod |
684 nmethod* nm = NULL; | |
685 { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
686 int nmethod_size = | |
687 allocation_size(code_buffer, sizeof(nmethod)) | |
688 + adjust_pcs_size(debug_info->pcs_size()) | |
689 + round_to(dependencies->size_in_bytes() , oopSize) | |
690 + round_to(handler_table->size_in_bytes(), oopSize) | |
691 + round_to(nul_chk_table->size_in_bytes(), oopSize) | |
692 + round_to(debug_info->data_size() , oopSize); | |
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693 |
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694 nm = new (nmethod_size) |
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695 nmethod(method(), nmethod_size, compile_id, entry_bci, offsets, |
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696 orig_pc_offset, debug_info, dependencies, code_buffer, frame_size, |
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697 oop_maps, |
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698 handler_table, |
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699 nul_chk_table, |
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700 compiler, |
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701 comp_level |
22298 | 702 #if INCLUDE_JVMCI |
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703 , installed_code, |
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704 speculationLog |
9707 | 705 #endif |
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706 ); |
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707 |
0 | 708 if (nm != NULL) { |
709 // To make dependency checking during class loading fast, record | |
710 // the nmethod dependencies in the classes it is dependent on. | |
711 // This allows the dependency checking code to simply walk the | |
712 // class hierarchy above the loaded class, checking only nmethods | |
713 // which are dependent on those classes. The slow way is to | |
714 // check every nmethod for dependencies which makes it linear in | |
715 // the number of methods compiled. For applications with a lot | |
716 // classes the slow way is too slow. | |
717 for (Dependencies::DepStream deps(nm); deps.next(); ) { | |
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718 Klass* klass = deps.context_type(); |
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719 if (klass == NULL) { |
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720 continue; // ignore things like evol_method |
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721 } |
0 | 722 |
723 // record this nmethod as dependent on this klass | |
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724 InstanceKlass::cast(klass)->add_dependent_nmethod(nm); |
0 | 725 } |
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726 if (nm != NULL) note_java_nmethod(nm); |
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727 if (PrintAssembly || CompilerOracle::has_option_string(method, "PrintAssembly")) { |
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728 Disassembler::decode(nm); |
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729 } |
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730 } |
0 | 731 } |
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732 // Do verification and logging outside CodeCache_lock. |
0 | 733 if (nm != NULL) { |
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734 // Safepoints in nmethod::verify aren't allowed because nm hasn't been installed yet. |
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735 DEBUG_ONLY(nm->verify();) |
0 | 736 nm->log_new_nmethod(); |
737 } | |
738 return nm; | |
739 } | |
740 | |
741 | |
742 // For native wrappers | |
743 nmethod::nmethod( | |
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744 Method* method, |
0 | 745 int nmethod_size, |
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746 int compile_id, |
0 | 747 CodeOffsets* offsets, |
748 CodeBuffer* code_buffer, | |
749 int frame_size, | |
750 ByteSize basic_lock_owner_sp_offset, | |
751 ByteSize basic_lock_sp_offset, | |
752 OopMapSet* oop_maps ) | |
753 : CodeBlob("native nmethod", code_buffer, sizeof(nmethod), | |
754 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 755 _native_receiver_sp_offset(basic_lock_owner_sp_offset), |
756 _native_basic_lock_sp_offset(basic_lock_sp_offset) | |
0 | 757 { |
758 { | |
759 debug_only(No_Safepoint_Verifier nsv;) | |
760 assert_locked_or_safepoint(CodeCache_lock); | |
761 | |
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762 init_defaults(); |
0 | 763 _method = method; |
764 _entry_bci = InvocationEntryBci; | |
765 // We have no exception handler or deopt handler make the | |
766 // values something that will never match a pc like the nmethod vtable entry | |
767 _exception_offset = 0; | |
768 _deoptimize_offset = 0; | |
1204 | 769 _deoptimize_mh_offset = 0; |
0 | 770 _orig_pc_offset = 0; |
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771 |
1748 | 772 _consts_offset = data_offset(); |
0 | 773 _stub_offset = data_offset(); |
1563
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774 _oops_offset = data_offset(); |
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775 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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776 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
0 | 777 _scopes_pcs_offset = _scopes_data_offset; |
778 _dependencies_offset = _scopes_pcs_offset; | |
779 _handler_table_offset = _dependencies_offset; | |
780 _nul_chk_table_offset = _handler_table_offset; | |
781 _nmethod_end_offset = _nul_chk_table_offset; | |
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782 _compile_id = compile_id; |
0 | 783 _comp_level = CompLevel_none; |
1748 | 784 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
785 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
0 | 786 _osr_entry_point = NULL; |
787 _exception_cache = NULL; | |
788 _pc_desc_cache.reset_to(NULL); | |
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789 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
0 | 790 |
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791 code_buffer->copy_values_to(this); |
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792 if (ScavengeRootsInCode) { |
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793 if (detect_scavenge_root_oops()) { |
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794 CodeCache::add_scavenge_root_nmethod(this); |
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795 } |
12080 | 796 Universe::heap()->register_nmethod(this); |
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797 } |
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798 debug_only(verify_scavenge_root_oops()); |
0 | 799 CodeCache::commit(this); |
800 } | |
801 | |
802 if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { | |
803 ttyLocker ttyl; // keep the following output all in one block | |
804 // This output goes directly to the tty, not the compiler log. | |
805 // To enable tools to match it up with the compilation activity, | |
806 // be sure to tag this tty output with the compile ID. | |
807 if (xtty != NULL) { | |
808 xtty->begin_head("print_native_nmethod"); | |
809 xtty->method(_method); | |
810 xtty->stamp(); | |
811 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); | |
812 } | |
813 // print the header part first | |
814 print(); | |
815 // then print the requested information | |
816 if (PrintNativeNMethods) { | |
817 print_code(); | |
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818 if (oop_maps != NULL) { |
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819 oop_maps->print(); |
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820 } |
0 | 821 } |
822 if (PrintRelocations) { | |
823 print_relocations(); | |
824 } | |
825 if (xtty != NULL) { | |
826 xtty->tail("print_native_nmethod"); | |
827 } | |
828 } | |
829 } | |
830 | |
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831 // For dtrace wrappers |
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832 #ifdef HAVE_DTRACE_H |
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833 nmethod::nmethod( |
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834 Method* method, |
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835 int nmethod_size, |
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836 CodeOffsets* offsets, |
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837 CodeBuffer* code_buffer, |
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838 int frame_size) |
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839 : CodeBlob("dtrace nmethod", code_buffer, sizeof(nmethod), |
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840 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, NULL), |
2019 | 841 _native_receiver_sp_offset(in_ByteSize(-1)), |
842 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
116
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843 { |
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844 { |
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845 debug_only(No_Safepoint_Verifier nsv;) |
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846 assert_locked_or_safepoint(CodeCache_lock); |
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847 |
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848 init_defaults(); |
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849 _method = method; |
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850 _entry_bci = InvocationEntryBci; |
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851 // We have no exception handler or deopt handler make the |
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852 // values something that will never match a pc like the nmethod vtable entry |
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853 _exception_offset = 0; |
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854 _deoptimize_offset = 0; |
1204 | 855 _deoptimize_mh_offset = 0; |
1378
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856 _unwind_handler_offset = -1; |
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857 _trap_offset = offsets->value(CodeOffsets::Dtrace_trap); |
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858 _orig_pc_offset = 0; |
1748 | 859 _consts_offset = data_offset(); |
116
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860 _stub_offset = data_offset(); |
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861 _oops_offset = data_offset(); |
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862 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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863 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
116
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864 _scopes_pcs_offset = _scopes_data_offset; |
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865 _dependencies_offset = _scopes_pcs_offset; |
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866 _handler_table_offset = _dependencies_offset; |
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867 _nul_chk_table_offset = _handler_table_offset; |
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868 _nmethod_end_offset = _nul_chk_table_offset; |
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869 _compile_id = 0; // default |
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870 _comp_level = CompLevel_none; |
1748 | 871 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
872 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
116
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873 _osr_entry_point = NULL; |
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874 _exception_cache = NULL; |
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875 _pc_desc_cache.reset_to(NULL); |
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876 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
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877 |
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878 code_buffer->copy_values_to(this); |
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879 if (ScavengeRootsInCode) { |
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880 if (detect_scavenge_root_oops()) { |
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881 CodeCache::add_scavenge_root_nmethod(this); |
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882 } |
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883 Universe::heap()->register_nmethod(this); |
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884 } |
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885 DEBUG_ONLY(verify_scavenge_root_oops();) |
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886 CodeCache::commit(this); |
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887 } |
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888 |
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889 bool printnmethods = PrintNMethods || PrintNMethodsAtLevel == _comp_level; |
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890 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies) { |
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891 ttyLocker ttyl; // keep the following output all in one block |
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892 // This output goes directly to the tty, not the compiler log. |
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893 // To enable tools to match it up with the compilation activity, |
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894 // be sure to tag this tty output with the compile ID. |
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895 if (xtty != NULL) { |
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896 xtty->begin_head("print_dtrace_nmethod"); |
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897 xtty->method(_method); |
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898 xtty->stamp(); |
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899 xtty->end_head(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
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900 } |
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901 // print the header part first |
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902 print(); |
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903 // then print the requested information |
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904 if (printnmethods) { |
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905 print_code(); |
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906 } |
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907 if (PrintRelocations) { |
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908 print_relocations(); |
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909 } |
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910 if (xtty != NULL) { |
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911 xtty->tail("print_dtrace_nmethod"); |
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912 } |
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913 } |
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914 } |
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915 #endif // def HAVE_DTRACE_H |
0 | 916 |
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917 void* nmethod::operator new(size_t size, int nmethod_size) throw() { |
10114
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918 // Not critical, may return null if there is too little continuous memory |
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919 return CodeCache::allocate(nmethod_size); |
0 | 920 } |
921 | |
922 nmethod::nmethod( | |
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923 Method* method, |
0 | 924 int nmethod_size, |
925 int compile_id, | |
926 int entry_bci, | |
927 CodeOffsets* offsets, | |
928 int orig_pc_offset, | |
929 DebugInformationRecorder* debug_info, | |
930 Dependencies* dependencies, | |
931 CodeBuffer *code_buffer, | |
932 int frame_size, | |
933 OopMapSet* oop_maps, | |
934 ExceptionHandlerTable* handler_table, | |
935 ImplicitExceptionTable* nul_chk_table, | |
936 AbstractCompiler* compiler, | |
937 int comp_level | |
22298 | 938 #if INCLUDE_JVMCI |
9707 | 939 , Handle installed_code, |
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940 Handle speculation_log |
9707 | 941 #endif |
0 | 942 ) |
943 : CodeBlob("nmethod", code_buffer, sizeof(nmethod), | |
944 nmethod_size, offsets->value(CodeOffsets::Frame_Complete), frame_size, oop_maps), | |
2019 | 945 _native_receiver_sp_offset(in_ByteSize(-1)), |
946 _native_basic_lock_sp_offset(in_ByteSize(-1)) | |
0 | 947 { |
948 assert(debug_info->oop_recorder() == code_buffer->oop_recorder(), "shared OR"); | |
949 { | |
950 debug_only(No_Safepoint_Verifier nsv;) | |
951 assert_locked_or_safepoint(CodeCache_lock); | |
952 | |
1644
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953 init_defaults(); |
0 | 954 _method = method; |
1644
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955 _entry_bci = entry_bci; |
0 | 956 _compile_id = compile_id; |
957 _comp_level = comp_level; | |
958 _compiler = compiler; | |
959 _orig_pc_offset = orig_pc_offset; | |
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960 _hotness_counter = NMethodSweeper::hotness_counter_reset_val(); |
1748 | 961 |
962 // Section offsets | |
1762
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963 _consts_offset = content_offset() + code_buffer->total_offset_of(code_buffer->consts()); |
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964 _stub_offset = content_offset() + code_buffer->total_offset_of(code_buffer->stubs()); |
0 | 965 |
22298 | 966 #if INCLUDE_JVMCI |
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967 _jvmci_installed_code = installed_code(); |
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968 _speculation_log = (instanceOop)speculation_log(); |
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969 |
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970 if (compiler->is_jvmci()) { |
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971 // JVMCI might not produce any stub sections |
9707 | 972 if (offsets->value(CodeOffsets::Exceptions) != -1) { |
973 _exception_offset = code_offset() + offsets->value(CodeOffsets::Exceptions); | |
974 } else { | |
975 _exception_offset = -1; | |
976 } | |
977 if (offsets->value(CodeOffsets::Deopt) != -1) { | |
978 _deoptimize_offset = code_offset() + offsets->value(CodeOffsets::Deopt); | |
979 } else { | |
980 _deoptimize_offset = -1; | |
981 } | |
982 if (offsets->value(CodeOffsets::DeoptMH) != -1) { | |
983 _deoptimize_mh_offset = code_offset() + offsets->value(CodeOffsets::DeoptMH); | |
984 } else { | |
985 _deoptimize_mh_offset = -1; | |
986 } | |
1762
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987 } else { |
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988 #endif |
0 | 989 // Exception handler and deopt handler are in the stub section |
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990 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must be set"); |
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991 assert(offsets->value(CodeOffsets::Deopt ) != -1, "must be set"); |
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992 |
1748 | 993 _exception_offset = _stub_offset + offsets->value(CodeOffsets::Exceptions); |
994 _deoptimize_offset = _stub_offset + offsets->value(CodeOffsets::Deopt); | |
2083
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995 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
1762
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996 _deoptimize_mh_offset = _stub_offset + offsets->value(CodeOffsets::DeoptMH); |
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997 } else { |
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998 _deoptimize_mh_offset = -1; |
22298 | 999 #if INCLUDE_JVMCI |
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1000 } |
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1001 #endif |
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1002 } |
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1003 if (offsets->value(CodeOffsets::UnwindHandler) != -1) { |
1748 | 1004 _unwind_handler_offset = code_offset() + offsets->value(CodeOffsets::UnwindHandler); |
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1005 } else { |
1748 | 1006 _unwind_handler_offset = -1; |
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1007 } |
1748 | 1008 |
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1009 _oops_offset = data_offset(); |
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1010 _metadata_offset = _oops_offset + round_to(code_buffer->total_oop_size(), oopSize); |
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1011 _scopes_data_offset = _metadata_offset + round_to(code_buffer->total_metadata_size(), wordSize); |
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1012 |
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1013 _scopes_pcs_offset = _scopes_data_offset + round_to(debug_info->data_size (), oopSize); |
0 | 1014 _dependencies_offset = _scopes_pcs_offset + adjust_pcs_size(debug_info->pcs_size()); |
1015 _handler_table_offset = _dependencies_offset + round_to(dependencies->size_in_bytes (), oopSize); | |
1016 _nul_chk_table_offset = _handler_table_offset + round_to(handler_table->size_in_bytes(), oopSize); | |
1017 _nmethod_end_offset = _nul_chk_table_offset + round_to(nul_chk_table->size_in_bytes(), oopSize); | |
1018 | |
1748 | 1019 _entry_point = code_begin() + offsets->value(CodeOffsets::Entry); |
1020 _verified_entry_point = code_begin() + offsets->value(CodeOffsets::Verified_Entry); | |
1021 _osr_entry_point = code_begin() + offsets->value(CodeOffsets::OSR_Entry); | |
0 | 1022 _exception_cache = NULL; |
1023 _pc_desc_cache.reset_to(scopes_pcs_begin()); | |
1024 | |
1025 // Copy contents of ScopeDescRecorder to nmethod | |
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1026 code_buffer->copy_values_to(this); |
0 | 1027 debug_info->copy_to(this); |
1028 dependencies->copy_to(this); | |
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1029 if (ScavengeRootsInCode) { |
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1030 if (detect_scavenge_root_oops()) { |
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1031 CodeCache::add_scavenge_root_nmethod(this); |
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1032 } |
12080 | 1033 Universe::heap()->register_nmethod(this); |
989
148e5441d916
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|
1034 } |
148e5441d916
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diff
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|
1035 debug_only(verify_scavenge_root_oops()); |
0 | 1036 |
1037 CodeCache::commit(this); | |
1038 | |
1039 // Copy contents of ExceptionHandlerTable to nmethod | |
1040 handler_table->copy_to(this); | |
1041 nul_chk_table->copy_to(this); | |
1042 | |
1043 // we use the information of entry points to find out if a method is | |
1044 // static or non static | |
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1045 assert(compiler->is_c2() || compiler->is_jvmci() || |
0 | 1046 _method->is_static() == (entry_point() == _verified_entry_point), |
1047 " entry points must be same for static methods and vice versa"); | |
1048 } | |
1049 | |
19736
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Add PrintNMethodsAtLevel option to hotspot
Tom Rodriguez <tom.rodriguez@oracle.com>
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|
1050 bool printnmethods = PrintNMethods || PrintNMethodsAtLevel == _comp_level |
100
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1051 || CompilerOracle::should_print(_method) |
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1052 || CompilerOracle::has_option_string(_method, "PrintNMethods"); |
0 | 1053 if (printnmethods || PrintDebugInfo || PrintRelocations || PrintDependencies || PrintExceptionHandlers) { |
1054 print_nmethod(printnmethods); | |
1055 } | |
1056 } | |
1057 | |
1058 | |
1059 // Print a short set of xml attributes to identify this nmethod. The | |
1060 // output should be embedded in some other element. | |
1061 void nmethod::log_identity(xmlStream* log) const { | |
1062 log->print(" compile_id='%d'", compile_id()); | |
1063 const char* nm_kind = compile_kind(); | |
1064 if (nm_kind != NULL) log->print(" compile_kind='%s'", nm_kind); | |
1065 if (compiler() != NULL) { | |
1066 log->print(" compiler='%s'", compiler()->name()); | |
1067 } | |
1783 | 1068 if (TieredCompilation) { |
1069 log->print(" level='%d'", comp_level()); | |
1070 } | |
0 | 1071 } |
1072 | |
1073 | |
1074 #define LOG_OFFSET(log, name) \ | |
1075 if ((intptr_t)name##_end() - (intptr_t)name##_begin()) \ | |
1076 log->print(" " XSTR(name) "_offset='%d'" , \ | |
1077 (intptr_t)name##_begin() - (intptr_t)this) | |
1078 | |
1079 | |
1080 void nmethod::log_new_nmethod() const { | |
1081 if (LogCompilation && xtty != NULL) { | |
1082 ttyLocker ttyl; | |
1083 HandleMark hm; | |
1084 xtty->begin_elem("nmethod"); | |
1085 log_identity(xtty); | |
1748 | 1086 xtty->print(" entry='" INTPTR_FORMAT "' size='%d'", code_begin(), size()); |
0 | 1087 xtty->print(" address='" INTPTR_FORMAT "'", (intptr_t) this); |
1088 | |
1089 LOG_OFFSET(xtty, relocation); | |
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1090 LOG_OFFSET(xtty, consts); |
1748 | 1091 LOG_OFFSET(xtty, insts); |
0 | 1092 LOG_OFFSET(xtty, stub); |
1093 LOG_OFFSET(xtty, scopes_data); | |
1094 LOG_OFFSET(xtty, scopes_pcs); | |
1095 LOG_OFFSET(xtty, dependencies); | |
1096 LOG_OFFSET(xtty, handler_table); | |
1097 LOG_OFFSET(xtty, nul_chk_table); | |
1098 LOG_OFFSET(xtty, oops); | |
18041 | 1099 LOG_OFFSET(xtty, metadata); |
0 | 1100 |
1101 xtty->method(method()); | |
1102 xtty->stamp(); | |
1103 xtty->end_elem(); | |
1104 } | |
1105 } | |
1106 | |
1107 #undef LOG_OFFSET | |
1108 | |
1109 | |
1110 // Print out more verbose output usually for a newly created nmethod. | |
2405
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1111 void nmethod::print_on(outputStream* st, const char* msg) const { |
0 | 1112 if (st != NULL) { |
1113 ttyLocker ttyl; | |
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1114 if (WizardMode) { |
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1115 CompileTask::print_compilation(st, this, msg, /*short_form:*/ true); |
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1116 st->print_cr(" (" INTPTR_FORMAT ")", this); |
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1117 } else { |
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1118 CompileTask::print_compilation(st, this, msg, /*short_form:*/ false); |
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1119 } |
0 | 1120 } |
1121 } | |
1122 | |
1123 | |
1124 void nmethod::print_nmethod(bool printmethod) { | |
1125 ttyLocker ttyl; // keep the following output all in one block | |
1126 if (xtty != NULL) { | |
1127 xtty->begin_head("print_nmethod"); | |
1128 xtty->stamp(); | |
1129 xtty->end_head(); | |
1130 } | |
1131 // print the header part first | |
1132 print(); | |
1133 // then print the requested information | |
1134 if (printmethod) { | |
1135 print_code(); | |
1136 print_pcs(); | |
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1137 if (oop_maps()) { |
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1138 oop_maps()->print(); |
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1139 } |
0 | 1140 } |
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Tom Rodriguez <tom.rodriguez@oracle.com>
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|
1141 if (PrintDebugInfo || CompilerOracle::has_option_string(_method, "PrintDebugInfo")) { |
0 | 1142 print_scopes(); |
1143 } | |
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f3eed864acdc
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|
1144 if (PrintRelocations || CompilerOracle::has_option_string(_method, "PrintRelocations")) { |
0 | 1145 print_relocations(); |
1146 } | |
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1147 if (PrintDependencies || CompilerOracle::has_option_string(_method, "PrintDependencies")) { |
0 | 1148 print_dependencies(); |
1149 } | |
1150 if (PrintExceptionHandlers) { | |
1151 print_handler_table(); | |
1152 print_nul_chk_table(); | |
1153 } | |
1154 if (xtty != NULL) { | |
1155 xtty->tail("print_nmethod"); | |
1156 } | |
1157 } | |
1158 | |
1159 | |
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1160 // Promote one word from an assembly-time handle to a live embedded oop. |
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1161 inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) { |
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1162 if (handle == NULL || |
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1163 // As a special case, IC oops are initialized to 1 or -1. |
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1164 handle == (jobject) Universe::non_oop_word()) { |
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1165 (*dest) = (oop) handle; |
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1166 } else { |
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1167 (*dest) = JNIHandles::resolve_non_null(handle); |
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1168 } |
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1169 } |
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1170 |
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1171 |
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1172 // Have to have the same name because it's called by a template |
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1173 void nmethod::copy_values(GrowableArray<jobject>* array) { |
1563
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1174 int length = array->length(); |
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1175 assert((address)(oops_begin() + length) <= (address)oops_end(), "oops big enough"); |
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1176 oop* dest = oops_begin(); |
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1177 for (int index = 0 ; index < length; index++) { |
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1178 initialize_immediate_oop(&dest[index], array->at(index)); |
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1179 } |
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1180 |
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1181 // Now we can fix up all the oops in the code. We need to do this |
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1182 // in the code because the assembler uses jobjects as placeholders. |
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1183 // The code and relocations have already been initialized by the |
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1184 // CodeBlob constructor, so it is valid even at this early point to |
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1185 // iterate over relocations and patch the code. |
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1186 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true); |
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1187 } |
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1188 |
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1189 void nmethod::copy_values(GrowableArray<Metadata*>* array) { |
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1190 int length = array->length(); |
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1191 assert((address)(metadata_begin() + length) <= (address)metadata_end(), "big enough"); |
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1192 Metadata** dest = metadata_begin(); |
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1193 for (int index = 0 ; index < length; index++) { |
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1194 dest[index] = array->at(index); |
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1195 } |
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1196 } |
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1197 |
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1198 bool nmethod::is_at_poll_return(address pc) { |
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1199 RelocIterator iter(this, pc, pc+1); |
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1200 while (iter.next()) { |
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1201 if (iter.type() == relocInfo::poll_return_type) |
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1202 return true; |
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1203 } |
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1204 return false; |
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1205 } |
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1206 |
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1207 |
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1208 bool nmethod::is_at_poll_or_poll_return(address pc) { |
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1209 RelocIterator iter(this, pc, pc+1); |
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1210 while (iter.next()) { |
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1211 relocInfo::relocType t = iter.type(); |
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1212 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type) |
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1213 return true; |
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1214 } |
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1215 return false; |
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1216 } |
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1217 |
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1218 |
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1219 void nmethod::fix_oop_relocations(address begin, address end, bool initialize_immediates) { |
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1220 // re-patch all oop-bearing instructions, just in case some oops moved |
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1221 RelocIterator iter(this, begin, end); |
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1222 while (iter.next()) { |
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1223 if (iter.type() == relocInfo::oop_type) { |
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1224 oop_Relocation* reloc = iter.oop_reloc(); |
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1225 if (initialize_immediates && reloc->oop_is_immediate()) { |
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1226 oop* dest = reloc->oop_addr(); |
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1227 initialize_immediate_oop(dest, (jobject) *dest); |
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1228 } |
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1229 // Refresh the oop-related bits of this instruction. |
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1230 reloc->fix_oop_relocation(); |
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1231 } else if (iter.type() == relocInfo::metadata_type) { |
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1232 metadata_Relocation* reloc = iter.metadata_reloc(); |
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1233 reloc->fix_metadata_relocation(); |
1563
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1234 } |
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1235 } |
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1236 } |
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1237 |
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|
1238 |
2375
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1239 void nmethod::verify_oop_relocations() { |
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1240 // Ensure sure that the code matches the current oop values |
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1241 RelocIterator iter(this, NULL, NULL); |
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1242 while (iter.next()) { |
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1243 if (iter.type() == relocInfo::oop_type) { |
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1244 oop_Relocation* reloc = iter.oop_reloc(); |
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1245 if (!reloc->oop_is_immediate()) { |
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|
1246 reloc->verify_oop_relocation(); |
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|
1247 } |
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|
1248 } |
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|
1249 } |
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|
1250 } |
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|
1251 |
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1252 |
0 | 1253 ScopeDesc* nmethod::scope_desc_at(address pc) { |
1254 PcDesc* pd = pc_desc_at(pc); | |
1255 guarantee(pd != NULL, "scope must be present"); | |
1256 return new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 1257 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
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1258 pd->return_oop()); |
0 | 1259 } |
1260 | |
1261 | |
1262 void nmethod::clear_inline_caches() { | |
1263 assert(SafepointSynchronize::is_at_safepoint(), "cleaning of IC's only allowed at safepoint"); | |
1264 if (is_zombie()) { | |
1265 return; | |
1266 } | |
1267 | |
1268 RelocIterator iter(this); | |
1269 while (iter.next()) { | |
1270 iter.reloc()->clear_inline_cache(); | |
1271 } | |
1272 } | |
1273 | |
1274 | |
1275 void nmethod::cleanup_inline_caches() { | |
1276 | |
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1277 assert_locked_or_safepoint(CompiledIC_lock); |
0 | 1278 |
1279 // If the method is not entrant or zombie then a JMP is plastered over the | |
1280 // first few bytes. If an oop in the old code was there, that oop | |
1281 // should not get GC'd. Skip the first few bytes of oops on | |
1282 // not-entrant methods. | |
1283 address low_boundary = verified_entry_point(); | |
1284 if (!is_in_use()) { | |
1285 low_boundary += NativeJump::instruction_size; | |
1286 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1287 // This means that the low_boundary is going to be a little too high. | |
1288 // This shouldn't matter, since oops of non-entrant methods are never used. | |
1289 // In fact, why are we bothering to look at oops in a non-entrant method?? | |
1290 } | |
1291 | |
1292 // Find all calls in an nmethod, and clear the ones that points to zombie methods | |
1293 ResourceMark rm; | |
1294 RelocIterator iter(this, low_boundary); | |
1295 while(iter.next()) { | |
1296 switch(iter.type()) { | |
1297 case relocInfo::virtual_call_type: | |
1298 case relocInfo::opt_virtual_call_type: { | |
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1299 CompiledIC *ic = CompiledIC_at(&iter); |
0 | 1300 // Ok, to lookup references to zombies here |
1301 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); | |
1302 if( cb != NULL && cb->is_nmethod() ) { | |
1303 nmethod* nm = (nmethod*)cb; | |
1304 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1305 if (!nm->is_in_use() || (nm->method()->code() != nm)) ic->set_to_clean(); |
0 | 1306 } |
1307 break; | |
1308 } | |
1309 case relocInfo::static_call_type: { | |
1310 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); | |
1311 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); | |
1312 if( cb != NULL && cb->is_nmethod() ) { | |
1313 nmethod* nm = (nmethod*)cb; | |
1314 // Clean inline caches pointing to both zombie and not_entrant methods | |
1202 | 1315 if (!nm->is_in_use() || (nm->method()->code() != nm)) csc->set_to_clean(); |
0 | 1316 } |
1317 break; | |
1318 } | |
1319 } | |
1320 } | |
1321 } | |
1322 | |
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1323 void nmethod::verify_clean_inline_caches() { |
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1324 assert_locked_or_safepoint(CompiledIC_lock); |
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1325 |
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1326 // If the method is not entrant or zombie then a JMP is plastered over the |
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1327 // first few bytes. If an oop in the old code was there, that oop |
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1328 // should not get GC'd. Skip the first few bytes of oops on |
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1329 // not-entrant methods. |
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1330 address low_boundary = verified_entry_point(); |
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1331 if (!is_in_use()) { |
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1332 low_boundary += NativeJump::instruction_size; |
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1333 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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1334 // This means that the low_boundary is going to be a little too high. |
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1335 // This shouldn't matter, since oops of non-entrant methods are never used. |
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1336 // In fact, why are we bothering to look at oops in a non-entrant method?? |
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|
1337 } |
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1338 |
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|
1339 ResourceMark rm; |
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1340 RelocIterator iter(this, low_boundary); |
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1341 while(iter.next()) { |
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1342 switch(iter.type()) { |
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1343 case relocInfo::virtual_call_type: |
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1344 case relocInfo::opt_virtual_call_type: { |
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|
1345 CompiledIC *ic = CompiledIC_at(&iter); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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1346 // Ok, to lookup references to zombies here |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1347 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1348 if( cb != NULL && cb->is_nmethod() ) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
1349 nmethod* nm = (nmethod*)cb; |
2c6ef90f030a
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diff
changeset
|
1350 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1351 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1352 assert(ic->is_clean(), "IC should be clean"); |
2c6ef90f030a
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diff
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|
1353 } |
2c6ef90f030a
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diff
changeset
|
1354 } |
2c6ef90f030a
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diff
changeset
|
1355 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1356 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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changeset
|
1357 case relocInfo::static_call_type: { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1358 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); |
2c6ef90f030a
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changeset
|
1359 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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changeset
|
1360 if( cb != NULL && cb->is_nmethod() ) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
1361 nmethod* nm = (nmethod*)cb; |
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changeset
|
1362 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1363 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1364 assert(csc->is_clean(), "IC should be clean"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1365 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1366 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1367 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1368 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
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diff
changeset
|
1369 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
1370 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1371 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1372 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1373 int nmethod::verify_icholder_relocations() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1374 int count = 0; |
2c6ef90f030a
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diff
changeset
|
1375 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1376 RelocIterator iter(this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
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diff
changeset
|
1377 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1378 if (iter.type() == relocInfo::virtual_call_type) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1379 if (CompiledIC::is_icholder_call_site(iter.virtual_call_reloc())) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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changeset
|
1380 CompiledIC *ic = CompiledIC_at(&iter); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
1381 if (TraceCompiledIC) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1382 tty->print("noticed icholder " INTPTR_FORMAT " ", p2i(ic->cached_icholder())); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
1383 ic->print(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1384 } |
2c6ef90f030a
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diff
changeset
|
1385 assert(ic->cached_icholder() != NULL, "must be non-NULL"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1386 count++; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1387 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1388 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1389 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
1390 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1391 return count; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
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diff
changeset
|
1392 } |
2c6ef90f030a
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parents:
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diff
changeset
|
1393 |
989
148e5441d916
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parents:
931
diff
changeset
|
1394 // This is a private interface with the sweeper. |
0 | 1395 void nmethod::mark_as_seen_on_stack() { |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12175
diff
changeset
|
1396 assert(is_alive(), "Must be an alive method"); |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
1397 // Set the traversal mark to ensure that the sweeper does 2 |
2a47bd84841f
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parents:
1616
diff
changeset
|
1398 // cleaning passes before moving to zombie. |
0 | 1399 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
1400 } | |
1401 | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1402 // Tell if a non-entrant method can be converted to a zombie (i.e., |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1403 // there are no activations on the stack, not in use by the VM, |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
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diff
changeset
|
1404 // and not in use by the ServiceThread) |
0 | 1405 bool nmethod::can_not_entrant_be_converted() { |
1406 assert(is_not_entrant(), "must be a non-entrant method"); | |
1407 | |
1408 // Since the nmethod sweeper only does partial sweep the sweeper's traversal | |
1409 // count can be greater than the stack traversal count before it hits the | |
1410 // nmethod for the second time. | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
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diff
changeset
|
1411 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1412 !is_locked_by_vm(); |
0 | 1413 } |
1414 | |
1415 void nmethod::inc_decompile_count() { | |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
1416 if (!is_compiled_by_c2() && !is_compiled_by_jvmci()) return; |
0 | 1417 // Could be gated by ProfileTraps, but do not bother... |
6725
da91efe96a93
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changeset
|
1418 Method* m = method(); |
0 | 1419 if (m == NULL) return; |
6725
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|
1420 MethodData* mdo = m->method_data(); |
0 | 1421 if (mdo == NULL) return; |
6725
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|
1422 // There is a benign race here. See comments in methodData.hpp. |
0 | 1423 mdo->inc_decompile_count(); |
1424 } | |
1425 | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1426 void nmethod::increase_unloading_clock() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1427 _global_unloading_clock++; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1428 if (_global_unloading_clock == 0) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1429 // _nmethods are allocated with _unloading_clock == 0, |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1430 // so 0 is never used as a clock value. |
2c6ef90f030a
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diff
changeset
|
1431 _global_unloading_clock = 1; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1432 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1433 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1434 |
2c6ef90f030a
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diff
changeset
|
1435 void nmethod::set_unloading_clock(unsigned char unloading_clock) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1436 OrderAccess::release_store((volatile jubyte*)&_unloading_clock, unloading_clock); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1437 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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parents:
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diff
changeset
|
1438 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1439 unsigned char nmethod::unloading_clock() { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1440 return (unsigned char)OrderAccess::load_acquire((volatile jubyte*)&_unloading_clock); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1441 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1442 |
0 | 1443 void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) { |
1444 | |
1445 post_compiled_method_unload(); | |
1446 | |
1447 // Since this nmethod is being unloaded, make sure that dependencies | |
1448 // recorded in instanceKlasses get flushed and pass non-NULL closure to | |
1449 // indicate that this work is being done during a GC. | |
1450 assert(Universe::heap()->is_gc_active(), "should only be called during gc"); | |
1451 assert(is_alive != NULL, "Should be non-NULL"); | |
1452 // A non-NULL is_alive closure indicates that this is being called during GC. | |
1453 flush_dependencies(is_alive); | |
1454 | |
1455 // Break cycle between nmethod & method | |
1456 if (TraceClassUnloading && WizardMode) { | |
1457 tty->print_cr("[Class unloading: Making nmethod " INTPTR_FORMAT | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
1458 " unloadable], Method*(" INTPTR_FORMAT |
0 | 1459 "), cause(" INTPTR_FORMAT ")", |
1460 this, (address)_method, (address)cause); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1461 if (!Universe::heap()->is_gc_active()) |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
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diff
changeset
|
1462 cause->klass()->print(); |
0 | 1463 } |
941 | 1464 // Unlink the osr method, so we do not look this up again |
1465 if (is_osr_method()) { | |
1466 invalidate_osr_method(); | |
1467 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
changeset
|
1468 // If _method is already NULL the Method* is about to be unloaded, |
0 | 1469 // so we don't have to break the cycle. Note that it is possible to |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1470 // have the Method* live here, in case we unload the nmethod because |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1471 // it is pointing to some oop (other than the Method*) being unloaded. |
0 | 1472 if (_method != NULL) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1473 // OSR methods point to the Method*, but the Method* does not |
0 | 1474 // point back! |
1475 if (_method->code() == this) { | |
1476 _method->clear_code(); // Break a cycle | |
1477 } | |
1478 _method = NULL; // Clear the method of this dead nmethod | |
1479 } | |
9707 | 1480 |
0 | 1481 // Make the class unloaded - i.e., change state and notify sweeper |
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1482 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint"); |
0 | 1483 if (is_in_use()) { |
1484 // Transitioning directly from live to unloaded -- so | |
1485 // we need to force a cache clean-up; remember this | |
1486 // for later on. | |
1487 CodeCache::set_needs_cache_clean(true); | |
1488 } | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1489 |
2c6ef90f030a
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diff
changeset
|
1490 // Unregister must be done before the state change |
2c6ef90f030a
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diff
changeset
|
1491 Universe::heap()->unregister_nmethod(this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
changeset
|
1492 |
22643
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22548
diff
changeset
|
1493 _state = unloaded; |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22548
diff
changeset
|
1494 |
22298 | 1495 #if INCLUDE_JVMCI |
21143 | 1496 // The method can only be unloaded after the pointer to the installed code |
1497 // Java wrapper is no longer alive. Here we need to clear out this weak | |
1498 // reference to the dead object. Nulling out the reference has to happen | |
1499 // after the method is unregistered since the original value may be still | |
1500 // tracked by the rset. | |
22643
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22548
diff
changeset
|
1501 maybe_invalidate_installed_code(); |
21143 | 1502 #endif |
1503 | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1504 // Log the unloading. |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
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parents:
994
diff
changeset
|
1505 log_state_change(); |
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
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parents:
994
diff
changeset
|
1506 |
6725
da91efe96a93
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coleenp
parents:
6266
diff
changeset
|
1507 // The Method* is gone at this point |
0 | 1508 assert(_method == NULL, "Tautology"); |
1509 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1510 set_osr_link(NULL); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1511 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1512 NMethodSweeper::report_state_change(this); |
0 | 1513 } |
1514 | |
1515 void nmethod::invalidate_osr_method() { | |
1516 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
1517 // Remove from list of active nmethods | |
1518 if (method() != NULL) | |
6940
18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
coleenp
parents:
6806
diff
changeset
|
1519 method()->method_holder()->remove_osr_nmethod(this); |
0 | 1520 // Set entry as invalid |
1521 _entry_bci = InvalidOSREntryBci; | |
1522 } | |
1523 | |
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1524 void nmethod::log_state_change() const { |
0 | 1525 if (LogCompilation) { |
1526 if (xtty != NULL) { | |
1527 ttyLocker ttyl; // keep the following output all in one block | |
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
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parents:
1616
diff
changeset
|
1528 if (_state == unloaded) { |
1109
032260830071
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1529 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
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1530 os::current_thread_id()); |
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1531 } else { |
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1532 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
032260830071
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1533 os::current_thread_id(), |
1644
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1534 (_state == zombie ? " zombie='1'" : "")); |
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1535 } |
0 | 1536 log_identity(xtty); |
1537 xtty->stamp(); | |
1538 xtty->end_elem(); | |
1539 } | |
1540 } | |
1644
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1541 if (PrintCompilation && _state != unloaded) { |
2405
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1542 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
0 | 1543 } |
1544 } | |
1545 | |
13074
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1546 /** |
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1547 * Common functionality for both make_not_entrant and make_zombie |
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1548 */ |
1141 | 1549 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
0 | 1550 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
2342
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1551 assert(!is_zombie(), "should not already be a zombie"); |
0 | 1552 |
1644
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1553 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
0 | 1554 nmethodLocker nml(this); |
1644
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1555 methodHandle the_method(method()); |
1726 | 1556 No_Safepoint_Verifier nsv; |
0 | 1557 |
12080 | 1558 // during patching, depending on the nmethod state we must notify the GC that |
1559 // code has been unloaded, unregistering it. We cannot do this right while | |
1560 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
1561 // would be prone to deadlocks. | |
1562 // This flag is used to remember whether we need to later lock and unregister. | |
1563 bool nmethod_needs_unregister = false; | |
1564 | |
0 | 1565 { |
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1566 // invalidate osr nmethod before acquiring the patching lock since |
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1567 // they both acquire leaf locks and we don't want a deadlock. |
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1568 // This logic is equivalent to the logic below for patching the |
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1569 // verified entry point of regular methods. |
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1570 if (is_osr_method()) { |
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1571 // this effectively makes the osr nmethod not entrant |
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1572 invalidate_osr_method(); |
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1573 } |
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1574 |
0 | 1575 // Enter critical section. Does not block for safepoint. |
1576 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1109
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1577 |
1644
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1578 if (_state == state) { |
1109
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1579 // another thread already performed this transition so nothing |
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1580 // to do, but return false to indicate this. |
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1581 return false; |
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1582 } |
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1583 |
0 | 1584 // The caller can be calling the method statically or through an inline |
1585 // cache call. | |
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1586 if (!is_osr_method() && !is_not_entrant()) { |
0 | 1587 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
1588 SharedRuntime::get_handle_wrong_method_stub()); | |
1589 } | |
1590 | |
1644
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1591 if (is_in_use()) { |
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1592 // It's a true state change, so mark the method as decompiled. |
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1593 // Do it only for transition from alive. |
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1594 inc_decompile_count(); |
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|
1595 } |
1206
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|
1596 |
12080 | 1597 // If the state is becoming a zombie, signal to unregister the nmethod with |
1598 // the heap. | |
1599 // This nmethod may have already been unloaded during a full GC. | |
1600 if ((state == zombie) && !is_unloaded()) { | |
1601 nmethod_needs_unregister = true; | |
1602 } | |
1603 | |
12324
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1604 // Must happen before state change. Otherwise we have a race condition in |
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1605 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
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1606 // transition its state from 'not_entrant' to 'zombie' without having to wait |
510fbd28919c
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1607 // for stack scanning. |
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1608 if (state == not_entrant) { |
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1609 mark_as_seen_on_stack(); |
510fbd28919c
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|
1610 OrderAccess::storestore(); |
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|
1611 } |
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|
1612 |
0 | 1613 // Change state |
1644
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1614 _state = state; |
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1615 |
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1616 // Log the transition once |
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1617 log_state_change(); |
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1618 |
1644
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1619 // Remove nmethod from method. |
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1620 // We need to check if both the _code and _from_compiled_code_entry_point |
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1621 // refer to this nmethod because there is a race in setting these two fields |
6725
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1622 // in Method* as seen in bugid 4947125. |
1644
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|
1623 // If the vep() points to the zombie nmethod, the memory for the nmethod |
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1624 // could be flushed and the compiler and vtable stubs could still call |
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1625 // through it. |
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1626 if (method() != NULL && (method()->code() == this || |
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1627 method()->from_compiled_entry() == verified_entry_point())) { |
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|
1628 HandleMark hm; |
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diff
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|
1629 method()->clear_code(); |
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|
1630 } |
0 | 1631 } // leave critical region under Patching_lock |
1632 | |
1538
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1633 // When the nmethod becomes zombie it is no longer alive so the |
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1634 // dependencies must be flushed. nmethods in the not_entrant |
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1635 // state will be flushed later when the transition to zombie |
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|
1636 // happens or they get unloaded. |
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|
1637 if (state == zombie) { |
1726 | 1638 { |
1639 // Flushing dependecies must be done before any possible | |
1640 // safepoint can sneak in, otherwise the oops used by the | |
1641 // dependency logic could have become stale. | |
1642 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
12080 | 1643 if (nmethod_needs_unregister) { |
1644 Universe::heap()->unregister_nmethod(this); | |
1645 } | |
1726 | 1646 flush_dependencies(NULL); |
1647 } | |
1644
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|
1648 |
2342
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1649 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
46a56fac55c7
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1650 // event and it hasn't already been reported for this nmethod then |
46a56fac55c7
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diff
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|
1651 // report it now. The event may have been reported earilier if the GC |
46a56fac55c7
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diff
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|
1652 // marked it for unloading). JvmtiDeferredEventQueue support means |
46a56fac55c7
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|
1653 // we no longer go to a safepoint here. |
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|
1654 post_compiled_method_unload(); |
1726 | 1655 |
1656 #ifdef ASSERT | |
1657 // It's no longer safe to access the oops section since zombie | |
1658 // nmethods aren't scanned for GC. | |
1659 _oops_are_stale = true; | |
1660 #endif | |
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
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12080
diff
changeset
|
1661 // the Method may be reclaimed by class unloading now that the |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
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diff
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|
1662 // nmethod is in zombie state |
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
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diff
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|
1663 set_method(NULL); |
1538
bfe29ec02863
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|
1664 } else { |
bfe29ec02863
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1665 assert(state == not_entrant, "other cases may need to be handled differently"); |
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|
1666 } |
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Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
1667 |
456800cd1a17
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Tom Rodriguez <tom.rodriguez@oracle.com>
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|
1668 JVMCI_ONLY(maybe_invalidate_installed_code()); |
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1669 |
0 | 1670 if (TraceCreateZombies) { |
9707 | 1671 ResourceMark m; |
13230
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Doug Simon <doug.simon@oracle.com>
parents:
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|
1672 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 | 1673 } |
1674 | |
13074
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|
1675 NMethodSweeper::report_state_change(this); |
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|
1676 return true; |
0 | 1677 } |
1678 | |
1679 void nmethod::flush() { | |
1680 // Note that there are no valid oops in the nmethod anymore. | |
1681 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
1682 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
1683 | |
1684 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
1538
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|
1685 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1686 |
1687 // completely deallocate this method | |
4872
aa3d708d67c4
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|
1688 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
0 | 1689 if (PrintMethodFlushing) { |
1202 | 1690 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
1691 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
0 | 1692 } |
1693 | |
1694 // We need to deallocate any ExceptionCache data. | |
1695 // Note that we do not need to grab the nmethod lock for this, it | |
1696 // better be thread safe if we're disposing of it! | |
1697 ExceptionCache* ec = exception_cache(); | |
1698 set_exception_cache(NULL); | |
1699 while(ec != NULL) { | |
1700 ExceptionCache* next = ec->next(); | |
1701 delete ec; | |
1702 ec = next; | |
1703 } | |
1704 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
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|
1705 if (on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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diff
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|
1706 CodeCache::drop_scavenge_root_nmethod(this); |
148e5441d916
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diff
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|
1707 } |
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|
1708 |
1692 | 1709 #ifdef SHARK |
1845
a222fcfba398
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twisti
parents:
1784
diff
changeset
|
1710 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
1692 | 1711 #endif // SHARK |
1712 | |
0 | 1713 ((CodeBlob*)(this))->flush(); |
1714 | |
1715 CodeCache::free(this); | |
1716 } | |
1717 | |
1718 | |
1719 // | |
1720 // Notify all classes this nmethod is dependent on that it is no | |
1721 // longer dependent. This should only be called in two situations. | |
1722 // First, when a nmethod transitions to a zombie all dependents need | |
1723 // to be clear. Since zombification happens at a safepoint there's no | |
1724 // synchronization issues. The second place is a little more tricky. | |
1725 // During phase 1 of mark sweep class unloading may happen and as a | |
1726 // result some nmethods may get unloaded. In this case the flushing | |
1727 // of dependencies must happen during phase 1 since after GC any | |
1728 // dependencies in the unloaded nmethod won't be updated, so | |
1729 // traversing the dependency information in unsafe. In that case this | |
1730 // function is called with a non-NULL argument and this function only | |
1731 // notifies instanceKlasses that are reachable | |
1732 | |
1733 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
1538
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|
1734 assert_locked_or_safepoint(CodeCache_lock); |
0 | 1735 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
1736 "is_alive is non-NULL if and only if we are called during GC"); | |
1737 if (!has_flushed_dependencies()) { | |
1738 set_has_flushed_dependencies(); | |
1739 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
6725
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1740 Klass* klass = deps.context_type(); |
0 | 1741 if (klass == NULL) continue; // ignore things like evol_method |
1742 | |
1743 // During GC the is_alive closure is non-NULL, and is used to | |
1744 // determine liveness of dependees that need to be updated. | |
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1745 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
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1746 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
0 | 1747 } |
1748 } | |
1749 } | |
1750 } | |
1751 | |
1752 | |
1753 // If this oop is not live, the nmethod can be unloaded. | |
6787
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1754 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
0 | 1755 assert(root != NULL, "just checking"); |
1756 oop obj = *root; | |
1757 if (obj == NULL || is_alive->do_object_b(obj)) { | |
1758 return false; | |
1759 } | |
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1760 |
989
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1761 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
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1762 // simply because one of its constant oops has gone dead. |
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1763 // No actual classes need to be unloaded in order for this to occur. |
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1764 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
0 | 1765 make_unloaded(is_alive, obj); |
1766 return true; | |
1767 } | |
1768 | |
1769 // ------------------------------------------------------------------ | |
1770 // post_compiled_method_load_event | |
1771 // new method for install_code() path | |
1772 // Transfer information from compilation to jvmti | |
1773 void nmethod::post_compiled_method_load_event() { | |
1774 | |
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1775 Method* moop = method(); |
4006 | 1776 #ifndef USDT2 |
0 | 1777 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
1778 moop->klass_name()->bytes(), | |
1779 moop->klass_name()->utf8_length(), | |
1780 moop->name()->bytes(), | |
1781 moop->name()->utf8_length(), | |
1782 moop->signature()->bytes(), | |
1783 moop->signature()->utf8_length(), | |
1748 | 1784 insts_begin(), insts_size()); |
4006 | 1785 #else /* USDT2 */ |
1786 HOTSPOT_COMPILED_METHOD_LOAD( | |
1787 (char *) moop->klass_name()->bytes(), | |
1788 moop->klass_name()->utf8_length(), | |
1789 (char *) moop->name()->bytes(), | |
1790 moop->name()->utf8_length(), | |
1791 (char *) moop->signature()->bytes(), | |
1792 moop->signature()->utf8_length(), | |
1793 insts_begin(), insts_size()); | |
1794 #endif /* USDT2 */ | |
0 | 1795 |
1616
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1796 if (JvmtiExport::should_post_compiled_method_load() || |
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1797 JvmtiExport::should_post_compiled_method_unload()) { |
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1798 get_and_cache_jmethod_id(); |
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1799 } |
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1800 |
0 | 1801 if (JvmtiExport::should_post_compiled_method_load()) { |
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1802 // Let the Service thread (which is a real Java thread) post the event |
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1803 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1804 JvmtiDeferredEventQueue::enqueue( |
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1805 JvmtiDeferredEvent::compiled_method_load_event(this)); |
0 | 1806 } |
1807 } | |
1808 | |
1616
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1809 jmethodID nmethod::get_and_cache_jmethod_id() { |
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1810 if (_jmethod_id == NULL) { |
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1811 // Cache the jmethod_id since it can no longer be looked up once the |
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1812 // method itself has been marked for unloading. |
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1813 _jmethod_id = method()->jmethod_id(); |
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1814 } |
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1815 return _jmethod_id; |
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1816 } |
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1817 |
0 | 1818 void nmethod::post_compiled_method_unload() { |
1577
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1819 if (unload_reported()) { |
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1820 // During unloading we transition to unloaded and then to zombie |
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1821 // and the unloading is reported during the first transition. |
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1822 return; |
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1823 } |
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1824 |
0 | 1825 assert(_method != NULL && !is_unloaded(), "just checking"); |
1826 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
1827 | |
1828 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
1616
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1829 // post the event. Sometime later this nmethod will be made a zombie |
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1830 // by the sweeper but the Method* will not be valid at that point. |
1616
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1831 // If the _jmethod_id is null then no load event was ever requested |
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1832 // so don't bother posting the unload. The main reason for this is |
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1833 // that the jmethodID is a weak reference to the Method* so if |
1616
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1834 // it's being unloaded there's no way to look it up since the weak |
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1835 // ref will have been cleared. |
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1836 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
0 | 1837 assert(!unload_reported(), "already unloaded"); |
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1838 JvmtiDeferredEvent event = |
2342
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1839 JvmtiDeferredEvent::compiled_method_unload_event(this, |
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1840 _jmethod_id, insts_begin()); |
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1841 if (SafepointSynchronize::is_at_safepoint()) { |
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1842 // Don't want to take the queueing lock. Add it as pending and |
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1843 // it will get enqueued later. |
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1844 JvmtiDeferredEventQueue::add_pending_event(event); |
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1845 } else { |
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1846 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1847 JvmtiDeferredEventQueue::enqueue(event); |
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1848 } |
0 | 1849 } |
1850 | |
1851 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
1852 // any time. As the nmethod is being unloaded now we mark it has | |
1853 // having the unload event reported - this will ensure that we don't | |
1854 // attempt to report the event in the unlikely scenario where the | |
1855 // event is enabled at the time the nmethod is made a zombie. | |
1856 set_unload_reported(); | |
1857 } | |
1858 | |
20619
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1859 void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive, bool mark_on_stack) { |
20278
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1860 if (ic->is_icholder_call()) { |
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1861 // The only exception is compiledICHolder oops which may |
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1862 // yet be marked below. (We check this further below). |
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1863 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
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1864 |
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1865 if (mark_on_stack) { |
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1866 Metadata::mark_on_stack(cichk_oop->holder_method()); |
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1867 Metadata::mark_on_stack(cichk_oop->holder_klass()); |
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1868 } |
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1869 |
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1870 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
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1871 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
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1872 return; |
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1873 } |
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1874 } else { |
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1875 Metadata* ic_oop = ic->cached_metadata(); |
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1876 if (ic_oop != NULL) { |
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1877 if (mark_on_stack) { |
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1878 Metadata::mark_on_stack(ic_oop); |
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1879 } |
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1880 |
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1881 if (ic_oop->is_klass()) { |
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1882 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1883 return; |
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1884 } |
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1885 } else if (ic_oop->is_method()) { |
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1886 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1887 return; |
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1888 } |
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1889 } else { |
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1890 ShouldNotReachHere(); |
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1891 } |
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1892 } |
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1893 } |
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1894 |
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1895 ic->set_to_clean(); |
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1896 } |
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1897 |
0 | 1898 // This is called at the end of the strong tracing/marking phase of a |
1899 // GC to unload an nmethod if it contains otherwise unreachable | |
1900 // oops. | |
1901 | |
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1902 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
0 | 1903 // Make sure the oop's ready to receive visitors |
1904 assert(!is_zombie() && !is_unloaded(), | |
1905 "should not call follow on zombie or unloaded nmethod"); | |
1906 | |
1907 // If the method is not entrant then a JMP is plastered over the | |
1908 // first few bytes. If an oop in the old code was there, that oop | |
1909 // should not get GC'd. Skip the first few bytes of oops on | |
1910 // not-entrant methods. | |
1911 address low_boundary = verified_entry_point(); | |
1912 if (is_not_entrant()) { | |
1913 low_boundary += NativeJump::instruction_size; | |
1914 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
1915 // (See comment above.) | |
1916 } | |
1917 | |
1918 // The RedefineClasses() API can cause the class unloading invariant | |
1919 // to no longer be true. See jvmtiExport.hpp for details. | |
1920 // Also, leave a debugging breadcrumb in local flag. | |
1921 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
1922 if (a_class_was_redefined) { | |
1923 // This set of the unloading_occurred flag is done before the | |
1924 // call to post_compiled_method_unload() so that the unloading | |
1925 // of this nmethod is reported. | |
1926 unloading_occurred = true; | |
1927 } | |
1928 | |
1929 // Exception cache | |
20269 | 1930 clean_exception_cache(is_alive); |
0 | 1931 |
1932 // If class unloading occurred we first iterate over all inline caches and | |
1933 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
1934 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
1935 // iteration below. | |
1936 if (unloading_occurred) { | |
1937 RelocIterator iter(this, low_boundary); | |
1938 while(iter.next()) { | |
1939 if (iter.type() == relocInfo::virtual_call_type) { | |
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1940 CompiledIC *ic = CompiledIC_at(&iter); |
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1941 clean_ic_if_metadata_is_dead(ic, is_alive, false); |
0 | 1942 } |
1943 } | |
1944 } | |
1945 | |
1946 // Compiled code | |
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1947 { |
0 | 1948 RelocIterator iter(this, low_boundary); |
1949 while (iter.next()) { | |
1950 if (iter.type() == relocInfo::oop_type) { | |
1951 oop_Relocation* r = iter.oop_reloc(); | |
1952 // In this loop, we must only traverse those oops directly embedded in | |
1953 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
1954 assert(1 == (r->oop_is_immediate()) + | |
1955 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
1956 "oop must be found in exactly one place"); | |
1957 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
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1958 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
0 | 1959 return; |
1960 } | |
1961 } | |
1962 } | |
1963 } | |
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1964 } |
0 | 1965 |
1966 | |
1967 // Scopes | |
1968 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
1969 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1970 if (can_unload(is_alive, p, unloading_occurred)) { |
0 | 1971 return; |
1972 } | |
1973 } | |
1974 | |
22298 | 1975 #if INCLUDE_JVMCI |
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1976 // Follow JVMCI method |
21143 | 1977 BarrierSet* bs = Universe::heap()->barrier_set(); |
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1978 if (_jvmci_installed_code != NULL) { |
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1979 if (_jvmci_installed_code->is_a(HotSpotNmethod::klass()) && HotSpotNmethod::isDefault(_jvmci_installed_code)) { |
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1980 if (!is_alive->do_object_b(_jvmci_installed_code)) { |
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1981 clear_jvmci_installed_code(); |
21143 | 1982 } |
1983 } else { | |
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1984 if (can_unload(is_alive, (oop*)&_jvmci_installed_code, unloading_occurred)) { |
21143 | 1985 return; |
1986 } | |
1987 } | |
1988 } | |
1989 | |
1990 if (_speculation_log != NULL) { | |
1991 if (!is_alive->do_object_b(_speculation_log)) { | |
1992 bs->write_ref_nmethod_pre(&_speculation_log, this); | |
1993 _speculation_log = NULL; | |
1994 bs->write_ref_nmethod_post(&_speculation_log, this); | |
1995 } | |
1996 } | |
1997 #endif | |
1998 | |
1999 | |
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2000 // Ensure that all metadata is still alive |
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2001 verify_metadata_loaders(low_boundary, is_alive); |
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2002 } |
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2003 |
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2004 template <class CompiledICorStaticCall> |
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2005 static bool clean_if_nmethod_is_unloaded(CompiledICorStaticCall *ic, address addr, BoolObjectClosure *is_alive, nmethod* from) { |
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2006 // Ok, to lookup references to zombies here |
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2007 CodeBlob *cb = CodeCache::find_blob_unsafe(addr); |
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2008 if (cb != NULL && cb->is_nmethod()) { |
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2009 nmethod* nm = (nmethod*)cb; |
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2010 |
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2011 if (nm->unloading_clock() != nmethod::global_unloading_clock()) { |
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2012 // The nmethod has not been processed yet. |
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2013 return true; |
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2014 } |
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|
2015 |
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2016 // Clean inline caches pointing to both zombie and not_entrant methods |
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2017 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
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2018 ic->set_to_clean(); |
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2019 assert(ic->is_clean(), err_msg("nmethod " PTR_FORMAT "not clean %s", from, from->method()->name_and_sig_as_C_string())); |
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2020 } |
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2021 } |
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|
2022 |
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|
2023 return false; |
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|
2024 } |
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|
2025 |
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|
2026 static bool clean_if_nmethod_is_unloaded(CompiledIC *ic, BoolObjectClosure *is_alive, nmethod* from) { |
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2027 return clean_if_nmethod_is_unloaded(ic, ic->ic_destination(), is_alive, from); |
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|
2028 } |
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|
2029 |
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|
2030 static bool clean_if_nmethod_is_unloaded(CompiledStaticCall *csc, BoolObjectClosure *is_alive, nmethod* from) { |
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2031 return clean_if_nmethod_is_unloaded(csc, csc->destination(), is_alive, from); |
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|
2032 } |
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|
2033 |
20619
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2034 bool nmethod::unload_if_dead_at(RelocIterator* iter_at_oop, BoolObjectClosure *is_alive, bool unloading_occurred) { |
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|
2035 assert(iter_at_oop->type() == relocInfo::oop_type, "Wrong relocation type"); |
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|
2036 |
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|
2037 oop_Relocation* r = iter_at_oop->oop_reloc(); |
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|
2038 // Traverse those oops directly embedded in the code. |
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2039 // Other oops (oop_index>0) are seen as part of scopes_oops. |
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2040 assert(1 == (r->oop_is_immediate()) + |
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|
2041 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), |
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|
2042 "oop must be found in exactly one place"); |
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|
2043 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
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|
2044 // Unload this nmethod if the oop is dead. |
b12a2a9b05ca
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|
2045 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
b12a2a9b05ca
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|
2046 return true;; |
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20278
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|
2047 } |
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20278
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|
2048 } |
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|
2049 |
b12a2a9b05ca
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|
2050 return false; |
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|
2051 } |
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|
2052 |
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|
2053 void nmethod::mark_metadata_on_stack_at(RelocIterator* iter_at_metadata) { |
b12a2a9b05ca
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|
2054 assert(iter_at_metadata->type() == relocInfo::metadata_type, "Wrong relocation type"); |
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|
2055 |
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|
2056 metadata_Relocation* r = iter_at_metadata->metadata_reloc(); |
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|
2057 // In this metadata, we must only follow those metadatas directly embedded in |
b12a2a9b05ca
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|
2058 // the code. Other metadatas (oop_index>0) are seen as part of |
b12a2a9b05ca
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|
2059 // the metadata section below. |
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|
2060 assert(1 == (r->metadata_is_immediate()) + |
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|
2061 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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|
2062 "metadata must be found in exactly one place"); |
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|
2063 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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|
2064 Metadata* md = r->metadata_value(); |
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|
2065 if (md != _method) Metadata::mark_on_stack(md); |
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|
2066 } |
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|
2067 } |
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|
2068 |
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|
2069 void nmethod::mark_metadata_on_stack_non_relocs() { |
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|
2070 // Visit the metadata section |
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|
2071 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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|
2072 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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|
2073 Metadata* md = *p; |
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|
2074 Metadata::mark_on_stack(md); |
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|
2075 } |
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|
2076 |
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|
2077 // Visit metadata not embedded in the other places. |
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|
2078 if (_method != NULL) Metadata::mark_on_stack(_method); |
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|
2079 } |
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|
2080 |
20278
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|
2081 bool nmethod::do_unloading_parallel(BoolObjectClosure* is_alive, bool unloading_occurred) { |
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|
2082 ResourceMark rm; |
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|
2083 |
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|
2084 // Make sure the oop's ready to receive visitors |
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|
2085 assert(!is_zombie() && !is_unloaded(), |
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|
2086 "should not call follow on zombie or unloaded nmethod"); |
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|
2087 |
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|
2088 // If the method is not entrant then a JMP is plastered over the |
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|
2089 // first few bytes. If an oop in the old code was there, that oop |
2c6ef90f030a
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|
2090 // should not get GC'd. Skip the first few bytes of oops on |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
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|
2091 // not-entrant methods. |
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|
2092 address low_boundary = verified_entry_point(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2093 if (is_not_entrant()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2094 low_boundary += NativeJump::instruction_size; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2095 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2096 // (See comment above.) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2097 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2098 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2099 // The RedefineClasses() API can cause the class unloading invariant |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2100 // to no longer be true. See jvmtiExport.hpp for details. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2101 // Also, leave a debugging breadcrumb in local flag. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2102 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2103 if (a_class_was_redefined) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2104 // This set of the unloading_occurred flag is done before the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2105 // call to post_compiled_method_unload() so that the unloading |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2106 // of this nmethod is reported. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2107 unloading_occurred = true; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2108 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2109 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2110 // When class redefinition is used all metadata in the CodeCache has to be recorded, |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2111 // so that unused "previous versions" can be purged. Since walking the CodeCache can |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2112 // be expensive, the "mark on stack" is piggy-backed on this parallel unloading code. |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2113 bool mark_metadata_on_stack = a_class_was_redefined; |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2114 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2115 // Exception cache |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2116 clean_exception_cache(is_alive); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2117 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2118 bool is_unloaded = false; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2119 bool postponed = false; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2120 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2121 RelocIterator iter(this, low_boundary); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2122 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2123 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2124 switch (iter.type()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2125 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2126 case relocInfo::virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2127 if (unloading_occurred) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2128 // If class unloading occurred we first iterate over all inline caches and |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2129 // clear ICs where the cached oop is referring to an unloaded klass or method. |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2130 clean_ic_if_metadata_is_dead(CompiledIC_at(&iter), is_alive, mark_metadata_on_stack); |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2131 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2132 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2133 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2134 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2135 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2136 case relocInfo::opt_virtual_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2137 postponed |= clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2138 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2139 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2140 case relocInfo::static_call_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2141 postponed |= clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2142 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2143 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2144 case relocInfo::oop_type: |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2145 if (!is_unloaded) { |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2146 is_unloaded = unload_if_dead_at(&iter, is_alive, unloading_occurred); |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2147 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2148 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2149 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2150 case relocInfo::metadata_type: |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2151 if (mark_metadata_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2152 mark_metadata_on_stack_at(&iter); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2153 } |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2154 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2155 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2156 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2157 if (mark_metadata_on_stack) { |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2158 mark_metadata_on_stack_non_relocs(); |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2159 } |
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2160 |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2161 if (is_unloaded) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2162 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2163 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2164 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2165 // Scopes |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2166 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2167 if (*p == Universe::non_oop_word()) continue; // skip non-oops |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2168 if (can_unload(is_alive, p, unloading_occurred)) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2169 is_unloaded = true; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2170 break; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2171 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2172 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2173 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2174 if (is_unloaded) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2175 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2176 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2177 |
22298 | 2178 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2179 // Follow JVMCI method |
21143 | 2180 BarrierSet* bs = Universe::heap()->barrier_set(); |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2181 if (_jvmci_installed_code != NULL) { |
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2182 if (_jvmci_installed_code->is_a(HotSpotNmethod::klass()) && HotSpotNmethod::isDefault(_jvmci_installed_code)) { |
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2183 if (!is_alive->do_object_b(_jvmci_installed_code)) { |
22725
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
2184 clear_jvmci_installed_code(); |
21143 | 2185 } |
2186 } else { | |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2187 if (can_unload(is_alive, (oop*)&_jvmci_installed_code, unloading_occurred)) { |
21143 | 2188 is_unloaded = true; |
2189 } | |
2190 } | |
2191 } | |
2192 | |
2193 if (_speculation_log != NULL) { | |
2194 if (!is_alive->do_object_b(_speculation_log)) { | |
2195 bs->write_ref_nmethod_pre(&_speculation_log, this); | |
2196 _speculation_log = NULL; | |
2197 bs->write_ref_nmethod_post(&_speculation_log, this); | |
2198 } | |
2199 } | |
2200 #endif | |
2201 | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2202 // Ensure that all metadata is still alive |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2203 verify_metadata_loaders(low_boundary, is_alive); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2204 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2205 return postponed; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2206 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2207 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2208 void nmethod::do_unloading_parallel_postponed(BoolObjectClosure* is_alive, bool unloading_occurred) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2209 ResourceMark rm; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2210 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2211 // Make sure the oop's ready to receive visitors |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2212 assert(!is_zombie(), |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2213 "should not call follow on zombie nmethod"); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2214 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2215 // If the method is not entrant then a JMP is plastered over the |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2216 // first few bytes. If an oop in the old code was there, that oop |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2217 // should not get GC'd. Skip the first few bytes of oops on |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2218 // not-entrant methods. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2219 address low_boundary = verified_entry_point(); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2220 if (is_not_entrant()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2221 low_boundary += NativeJump::instruction_size; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2222 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2223 // (See comment above.) |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2224 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2225 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2226 RelocIterator iter(this, low_boundary); |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2227 while(iter.next()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2228 |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2229 switch (iter.type()) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2230 |
2c6ef90f030a
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2231 case relocInfo::virtual_call_type: |
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2232 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
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2233 break; |
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2234 |
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2235 case relocInfo::opt_virtual_call_type: |
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2236 clean_if_nmethod_is_unloaded(CompiledIC_at(&iter), is_alive, this); |
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2237 break; |
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2238 |
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2239 case relocInfo::static_call_type: |
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2240 clean_if_nmethod_is_unloaded(compiledStaticCall_at(iter.reloc()), is_alive, this); |
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2241 break; |
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|
2242 } |
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|
2243 } |
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|
2244 } |
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2245 |
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2246 #ifdef ASSERT |
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2247 |
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2248 class CheckClass : AllStatic { |
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2249 static BoolObjectClosure* _is_alive; |
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2250 |
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2251 // Check class_loader is alive for this bit of metadata. |
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2252 static void check_class(Metadata* md) { |
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2253 Klass* klass = NULL; |
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2254 if (md->is_klass()) { |
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2255 klass = ((Klass*)md); |
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2256 } else if (md->is_method()) { |
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2257 klass = ((Method*)md)->method_holder(); |
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2258 } else if (md->is_methodData()) { |
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2259 klass = ((MethodData*)md)->method()->method_holder(); |
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2260 } else { |
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2261 md->print(); |
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2262 ShouldNotReachHere(); |
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2263 } |
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2264 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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2265 } |
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2266 public: |
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2267 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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2268 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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2269 _is_alive = is_alive; |
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2270 nm->metadata_do(check_class); |
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2271 } |
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2272 }; |
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2273 |
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2274 // This is called during a safepoint so can use static data |
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2275 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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2276 #endif // ASSERT |
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2277 |
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2278 |
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2279 // Processing of oop references should have been sufficient to keep |
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2280 // all strong references alive. Any weak references should have been |
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2281 // cleared as well. Visit all the metadata and ensure that it's |
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2282 // really alive. |
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2283 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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2284 #ifdef ASSERT |
0 | 2285 RelocIterator iter(this, low_boundary); |
2286 while (iter.next()) { | |
6725
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2287 // static_stub_Relocations may have dangling references to |
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2288 // Method*s so trim them out here. Otherwise it looks like |
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2289 // compiled code is maintaining a link to dead metadata. |
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2290 address static_call_addr = NULL; |
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2291 if (iter.type() == relocInfo::opt_virtual_call_type) { |
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2292 CompiledIC* cic = CompiledIC_at(&iter); |
6725
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2293 if (!cic->is_call_to_interpreted()) { |
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2294 static_call_addr = iter.addr(); |
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2295 } |
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2296 } else if (iter.type() == relocInfo::static_call_type) { |
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2297 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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2298 if (!csc->is_call_to_interpreted()) { |
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2299 static_call_addr = iter.addr(); |
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2300 } |
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|
2301 } |
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2302 if (static_call_addr != NULL) { |
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2303 RelocIterator sciter(this, low_boundary); |
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2304 while (sciter.next()) { |
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2305 if (sciter.type() == relocInfo::static_stub_type && |
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2306 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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2307 sciter.static_stub_reloc()->clear_inline_cache(); |
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2308 } |
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2309 } |
0 | 2310 } |
2311 } | |
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2312 // Check that the metadata embedded in the nmethod is alive |
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2313 CheckClass::do_check_class(is_alive, this); |
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2314 #endif |
0 | 2315 } |
2316 | |
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2317 |
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2318 // Iterate over metadata calling this function. Used by RedefineClasses |
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2319 void nmethod::metadata_do(void f(Metadata*)) { |
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2320 address low_boundary = verified_entry_point(); |
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2321 if (is_not_entrant()) { |
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2322 low_boundary += NativeJump::instruction_size; |
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2323 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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2324 // (See comment above.) |
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|
2325 } |
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|
2326 { |
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2327 // Visit all immediate references that are embedded in the instruction stream. |
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2328 RelocIterator iter(this, low_boundary); |
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2329 while (iter.next()) { |
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2330 if (iter.type() == relocInfo::metadata_type ) { |
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2331 metadata_Relocation* r = iter.metadata_reloc(); |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
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|
2332 // In this metadata, we must only follow those metadatas directly embedded in |
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2333 // the code. Other metadatas (oop_index>0) are seen as part of |
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2334 // the metadata section below. |
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2335 assert(1 == (r->metadata_is_immediate()) + |
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2336 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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2337 "metadata must be found in exactly one place"); |
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2338 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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2339 Metadata* md = r->metadata_value(); |
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2340 f(md); |
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2341 } |
10253
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2342 } else if (iter.type() == relocInfo::virtual_call_type) { |
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2343 // Check compiledIC holders associated with this nmethod |
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2344 CompiledIC *ic = CompiledIC_at(&iter); |
10253
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2345 if (ic->is_icholder_call()) { |
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2346 CompiledICHolder* cichk = ic->cached_icholder(); |
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2347 f(cichk->holder_method()); |
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2348 f(cichk->holder_klass()); |
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2349 } else { |
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|
2350 Metadata* ic_oop = ic->cached_metadata(); |
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2351 if (ic_oop != NULL) { |
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|
2352 f(ic_oop); |
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|
2353 } |
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|
2354 } |
6725
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2355 } |
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2356 } |
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2357 } |
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2358 |
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6964458: Reimplement class meta-data storage to use native memory
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|
2359 // Visit the metadata section |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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|
2360 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
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|
2361 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
da91efe96a93
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|
2362 Metadata* md = *p; |
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|
2363 f(md); |
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|
2364 } |
10253
4674e409a9e6
8014024: NPG: keep compiled ic methods from being deallocated in redefine classes
coleenp
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10114
diff
changeset
|
2365 |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
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20278
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changeset
|
2366 // Visit metadata not embedded in the other places. |
6725
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2367 if (_method != NULL) f(_method); |
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|
2368 } |
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|
2369 |
12080 | 2370 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
0 | 2371 // make sure the oops ready to receive visitors |
12080 | 2372 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
2373 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
0 | 2374 |
2375 // If the method is not entrant or zombie then a JMP is plastered over the | |
2376 // first few bytes. If an oop in the old code was there, that oop | |
2377 // should not get GC'd. Skip the first few bytes of oops on | |
2378 // not-entrant methods. | |
2379 address low_boundary = verified_entry_point(); | |
2380 if (is_not_entrant()) { | |
2381 low_boundary += NativeJump::instruction_size; | |
2382 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
2383 // (See comment above.) | |
2384 } | |
2385 | |
22298 | 2386 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
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diff
changeset
|
2387 if (_jvmci_installed_code != NULL) { |
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
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|
2388 f->do_oop((oop*) &_jvmci_installed_code); |
9707 | 2389 } |
13641
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
13451
diff
changeset
|
2390 if (_speculation_log != NULL) { |
5a9afbf72714
Add a speculation oop for uncommon trap deoptimization. Save it in the SpeculationLog during deoptimization.
Gilles Duboscq <duboscq@ssw.jku.at>
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changeset
|
2391 f->do_oop((oop*) &_speculation_log); |
9707 | 2392 } |
2393 #endif | |
2394 | |
0 | 2395 RelocIterator iter(this, low_boundary); |
941 | 2396 |
0 | 2397 while (iter.next()) { |
2398 if (iter.type() == relocInfo::oop_type ) { | |
2399 oop_Relocation* r = iter.oop_reloc(); | |
2400 // In this loop, we must only follow those oops directly embedded in | |
2401 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
941 | 2402 assert(1 == (r->oop_is_immediate()) + |
2403 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
2404 "oop must be found in exactly one place"); | |
0 | 2405 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
2406 f->do_oop(r->oop_addr()); | |
2407 } | |
2408 } | |
2409 } | |
2410 | |
2411 // Scopes | |
989
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2412 // This includes oop constants not inlined in the code stream. |
0 | 2413 for (oop* p = oops_begin(); p < oops_end(); p++) { |
2414 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
2415 f->do_oop(p); | |
2416 } | |
2417 } | |
2418 | |
989
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2419 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
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2420 |
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2421 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
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2422 |
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2423 // An nmethod is "marked" if its _mark_link is set non-null. |
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2424 // Even if it is the end of the linked list, it will have a non-null link value, |
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2425 // as long as it is on the list. |
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2426 // This code must be MP safe, because it is used from parallel GC passes. |
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2427 bool nmethod::test_set_oops_do_mark() { |
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2428 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
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2429 nmethod* observed_mark_link = _oops_do_mark_link; |
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2430 if (observed_mark_link == NULL) { |
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2431 // Claim this nmethod for this thread to mark. |
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|
2432 observed_mark_link = (nmethod*) |
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2433 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
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2434 if (observed_mark_link == NULL) { |
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|
2435 |
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2436 // Atomically append this nmethod (now claimed) to the head of the list: |
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|
2437 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
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2438 for (;;) { |
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2439 nmethod* required_mark_nmethods = observed_mark_nmethods; |
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2440 _oops_do_mark_link = required_mark_nmethods; |
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2441 observed_mark_nmethods = (nmethod*) |
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2442 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
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2443 if (observed_mark_nmethods == required_mark_nmethods) |
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|
2444 break; |
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|
2445 } |
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|
2446 // Mark was clear when we first saw this guy. |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2447 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
989
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|
2448 return false; |
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|
2449 } |
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|
2450 } |
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|
2451 // On fall through, another racing thread marked this nmethod before we did. |
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|
2452 return true; |
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|
2453 } |
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|
2454 |
148e5441d916
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|
2455 void nmethod::oops_do_marking_prologue() { |
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|
2456 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
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|
2457 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
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|
2458 // We use cmpxchg_ptr instead of regular assignment here because the user |
148e5441d916
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|
2459 // may fork a bunch of threads, and we need them all to see the same state. |
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|
2460 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
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|
2461 guarantee(observed == NULL, "no races in this sequential code"); |
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|
2462 } |
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|
2463 |
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|
2464 void nmethod::oops_do_marking_epilogue() { |
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|
2465 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
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|
2466 nmethod* cur = _oops_do_mark_nmethods; |
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2467 while (cur != NMETHOD_SENTINEL) { |
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|
2468 assert(cur != NULL, "not NULL-terminated"); |
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|
2469 nmethod* next = cur->_oops_do_mark_link; |
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|
2470 cur->_oops_do_mark_link = NULL; |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2471 cur->verify_oop_relocations(); |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
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|
2472 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
989
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|
2473 cur = next; |
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|
2474 } |
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|
2475 void* required = _oops_do_mark_nmethods; |
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2476 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
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|
2477 guarantee(observed == required, "no races in this sequential code"); |
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|
2478 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
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|
2479 } |
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|
2480 |
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|
2481 class DetectScavengeRoot: public OopClosure { |
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|
2482 bool _detected_scavenge_root; |
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|
2483 public: |
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|
2484 DetectScavengeRoot() : _detected_scavenge_root(false) |
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2485 { NOT_PRODUCT(_print_nm = NULL); } |
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|
2486 bool detected_scavenge_root() { return _detected_scavenge_root; } |
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2487 virtual void do_oop(oop* p) { |
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2488 if ((*p) != NULL && (*p)->is_scavengable()) { |
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|
2489 NOT_PRODUCT(maybe_print(p)); |
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|
2490 _detected_scavenge_root = true; |
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|
2491 } |
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|
2492 } |
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|
2493 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
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|
2494 |
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|
2495 #ifndef PRODUCT |
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|
2496 nmethod* _print_nm; |
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|
2497 void maybe_print(oop* p) { |
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|
2498 if (_print_nm == NULL) return; |
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|
2499 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
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parents:
2405
diff
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|
2500 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
989
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|
2501 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
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12175
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|
2502 (void *)(*p), (intptr_t)p); |
989
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|
2503 (*p)->print(); |
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|
2504 } |
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|
2505 #endif //PRODUCT |
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|
2506 }; |
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|
2507 |
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|
2508 bool nmethod::detect_scavenge_root_oops() { |
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|
2509 DetectScavengeRoot detect_scavenge_root; |
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|
2510 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
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6863023: need non-perm oops in code cache for JSR 292
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2511 oops_do(&detect_scavenge_root); |
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2512 return detect_scavenge_root.detected_scavenge_root(); |
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diff
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|
2513 } |
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|
2514 |
0 | 2515 // Method that knows how to preserve outgoing arguments at call. This method must be |
2516 // called with a frame corresponding to a Java invoke | |
2517 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
1692 | 2518 #ifndef SHARK |
0 | 2519 if (!method()->is_native()) { |
2520 SimpleScopeDesc ssd(this, fr.pc()); | |
2142 | 2521 Bytecode_invoke call(ssd.method(), ssd.bci()); |
10390 | 2522 bool has_receiver = call.has_receiver(); |
2523 bool has_appendix = call.has_appendix(); | |
2177
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6990754: Use native memory and reference counting to implement SymbolTable
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2524 Symbol* signature = call.signature(); |
10390 | 2525 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
0 | 2526 } |
1692 | 2527 #endif // !SHARK |
0 | 2528 } |
2529 | |
2530 | |
2531 oop nmethod::embeddedOop_at(u_char* p) { | |
2349
4cd9add59b1e
7024866: # assert(limit == NULL || limit <= nm->code_end()) failed: in bounds
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diff
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|
2532 RelocIterator iter(this, p, p + 1); |
0 | 2533 while (iter.next()) |
2534 if (iter.type() == relocInfo::oop_type) { | |
2535 return iter.oop_reloc()->oop_value(); | |
2536 } | |
2537 return NULL; | |
2538 } | |
2539 | |
2540 | |
2541 inline bool includes(void* p, void* from, void* to) { | |
2542 return from <= p && p < to; | |
2543 } | |
2544 | |
2545 | |
2546 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
2547 assert(count >= 2, "must be sentinel values, at least"); | |
2548 | |
2549 #ifdef ASSERT | |
2550 // must be sorted and unique; we do a binary search in find_pc_desc() | |
2551 int prev_offset = pcs[0].pc_offset(); | |
2552 assert(prev_offset == PcDesc::lower_offset_limit, | |
2553 "must start with a sentinel"); | |
2554 for (int i = 1; i < count; i++) { | |
2555 int this_offset = pcs[i].pc_offset(); | |
2556 assert(this_offset > prev_offset, "offsets must be sorted"); | |
2557 prev_offset = this_offset; | |
2558 } | |
2559 assert(prev_offset == PcDesc::upper_offset_limit, | |
2560 "must end with a sentinel"); | |
2561 #endif //ASSERT | |
2562 | |
1135
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2563 // Search for MethodHandle invokes and tag the nmethod. |
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|
2564 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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|
2565 if (pcs[i].is_method_handle_invoke()) { |
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|
2566 set_has_method_handle_invokes(true); |
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6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
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|
2567 break; |
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1109
diff
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|
2568 } |
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|
2569 } |
2083
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2570 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
1135
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2571 |
0 | 2572 int size = count * sizeof(PcDesc); |
2573 assert(scopes_pcs_size() >= size, "oob"); | |
2574 memcpy(scopes_pcs_begin(), pcs, size); | |
2575 | |
2576 // Adjust the final sentinel downward. | |
2577 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
2578 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
1748 | 2579 last_pc->set_pc_offset(content_size() + 1); |
0 | 2580 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
2581 // Fill any rounding gaps with copies of the last record. | |
2582 last_pc[1] = last_pc[0]; | |
2583 } | |
2584 // The following assert could fail if sizeof(PcDesc) is not | |
2585 // an integral multiple of oopSize (the rounding term). | |
2586 // If it fails, change the logic to always allocate a multiple | |
2587 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
2588 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
2589 } | |
2590 | |
2591 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
2592 assert(scopes_data_size() >= size, "oob"); | |
2593 memcpy(scopes_data_begin(), buffer, size); | |
2594 } | |
2595 | |
22239
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nmethod::is_deopt_entry should use NativeCall::instruction_size
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2596 // When using JVMCI the address might be off by the size of a call instruction. |
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nmethod::is_deopt_entry should use NativeCall::instruction_size
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|
2597 bool nmethod::is_deopt_entry(address pc) { |
7ca4c8c37ca9
nmethod::is_deopt_entry should use NativeCall::instruction_size
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21559
diff
changeset
|
2598 return pc == deopt_handler_begin() |
22298 | 2599 #if INCLUDE_JVMCI |
22239
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|
2600 || pc == (deopt_handler_begin() + NativeCall::instruction_size) |
22298 | 2601 #endif |
22239
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nmethod::is_deopt_entry should use NativeCall::instruction_size
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|
2602 ; |
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nmethod::is_deopt_entry should use NativeCall::instruction_size
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|
2603 } |
0 | 2604 |
2605 #ifdef ASSERT | |
2606 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
2607 PcDesc* lower = nm->scopes_pcs_begin(); | |
2608 PcDesc* upper = nm->scopes_pcs_end(); | |
2609 lower += 1; // exclude initial sentinel | |
2610 PcDesc* res = NULL; | |
2611 for (PcDesc* p = lower; p < upper; p++) { | |
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
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changeset
|
2612 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
0 | 2613 if (match_desc(p, pc_offset, approximate)) { |
2614 if (res == NULL) | |
2615 res = p; | |
2616 else | |
2617 res = (PcDesc*) badAddress; | |
2618 } | |
2619 } | |
2620 return res; | |
2621 } | |
2622 #endif | |
2623 | |
2624 | |
2625 // Finds a PcDesc with real-pc equal to "pc" | |
2626 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
1748 | 2627 address base_address = code_begin(); |
0 | 2628 if ((pc < base_address) || |
2629 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
2630 return NULL; // PC is wildly out of range | |
2631 } | |
2632 int pc_offset = (int) (pc - base_address); | |
2633 | |
2634 // Check the PcDesc cache if it contains the desired PcDesc | |
2635 // (This as an almost 100% hit rate.) | |
2636 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
2637 if (res != NULL) { | |
2638 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
2639 return res; | |
2640 } | |
2641 | |
2642 // Fallback algorithm: quasi-linear search for the PcDesc | |
2643 // Find the last pc_offset less than the given offset. | |
2644 // The successor must be the required match, if there is a match at all. | |
2645 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
2646 PcDesc* lower = scopes_pcs_begin(); | |
2647 PcDesc* upper = scopes_pcs_end(); | |
2648 upper -= 1; // exclude final sentinel | |
2649 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
2650 | |
2651 #define assert_LU_OK \ | |
2652 /* invariant on lower..upper during the following search: */ \ | |
2653 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
2654 assert(upper->pc_offset() >= pc_offset, "sanity") | |
2655 assert_LU_OK; | |
2656 | |
2657 // Use the last successful return as a split point. | |
2658 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
12675
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diff
changeset
|
2659 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2660 if (mid->pc_offset() < pc_offset) { |
2661 lower = mid; | |
2662 } else { | |
2663 upper = mid; | |
2664 } | |
2665 | |
2666 // Take giant steps at first (4096, then 256, then 16, then 1) | |
2667 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
2668 const int RADIX = (1 << LOG2_RADIX); | |
2669 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
2670 while ((mid = lower + step) < upper) { | |
2671 assert_LU_OK; | |
12675
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diff
changeset
|
2672 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2673 if (mid->pc_offset() < pc_offset) { |
2674 lower = mid; | |
2675 } else { | |
2676 upper = mid; | |
2677 break; | |
2678 } | |
2679 } | |
2680 assert_LU_OK; | |
2681 } | |
2682 | |
2683 // Sneak up on the value with a linear search of length ~16. | |
2684 while (true) { | |
2685 assert_LU_OK; | |
2686 mid = lower + 1; | |
12675
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff
changeset
|
2687 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
0 | 2688 if (mid->pc_offset() < pc_offset) { |
2689 lower = mid; | |
2690 } else { | |
2691 upper = mid; | |
2692 break; | |
2693 } | |
2694 } | |
2695 #undef assert_LU_OK | |
2696 | |
2697 if (match_desc(upper, pc_offset, approximate)) { | |
2698 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
2699 _pc_desc_cache.add_pc_desc(upper); | |
2700 return upper; | |
2701 } else { | |
2702 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
2703 return NULL; | |
2704 } | |
2705 } | |
2706 | |
2707 | |
2708 bool nmethod::check_all_dependencies() { | |
2709 bool found_check = false; | |
2710 // wholesale check of all dependencies | |
2711 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2712 if (deps.check_dependency() != NULL) { | |
2713 found_check = true; | |
2714 NOT_DEBUG(break); | |
2715 } | |
2716 } | |
2717 return found_check; // tell caller if we found anything | |
2718 } | |
2719 | |
2720 bool nmethod::check_dependency_on(DepChange& changes) { | |
2721 // What has happened: | |
2722 // 1) a new class dependee has been added | |
2723 // 2) dependee and all its super classes have been marked | |
2724 bool found_check = false; // set true if we are upset | |
2725 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
2726 // Evaluate only relevant dependencies. | |
2727 if (deps.spot_check_dependency_at(changes) != NULL) { | |
2728 found_check = true; | |
2729 NOT_DEBUG(break); | |
2730 } | |
2731 } | |
2732 return found_check; | |
2733 } | |
2734 | |
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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2735 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
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|
2736 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
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|
2737 Array<Method*>* dependee_methods = dependee_ik->methods(); |
0 | 2738 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2739 if (deps.type() == Dependencies::evol_method) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6266
diff
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|
2740 Method* method = deps.method_argument(0); |
0 | 2741 for (int j = 0; j < dependee_methods->length(); j++) { |
6725
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coleenp
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diff
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|
2742 if (dependee_methods->at(j) == method) { |
0 | 2743 // RC_TRACE macro has an embedded ResourceMark |
2744 RC_TRACE(0x01000000, | |
2745 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
6725
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6964458: Reimplement class meta-data storage to use native memory
coleenp
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|
2746 _method->method_holder()->external_name(), |
0 | 2747 _method->name()->as_C_string(), |
2748 _method->signature()->as_C_string(), compile_id(), | |
6725
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2749 method->method_holder()->external_name(), |
0 | 2750 method->name()->as_C_string(), |
2751 method->signature()->as_C_string())); | |
2752 if (TraceDependencies || LogCompilation) | |
2753 deps.log_dependency(dependee); | |
2754 return true; | |
2755 } | |
2756 } | |
2757 } | |
2758 } | |
2759 return false; | |
2760 } | |
2761 | |
2762 // Called from mark_for_deoptimization, when dependee is invalidated. | |
6725
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2763 bool nmethod::is_dependent_on_method(Method* dependee) { |
0 | 2764 for (Dependencies::DepStream deps(this); deps.next(); ) { |
2765 if (deps.type() != Dependencies::evol_method) | |
2766 continue; | |
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2767 Method* method = deps.method_argument(0); |
0 | 2768 if (method == dependee) return true; |
2769 } | |
2770 return false; | |
2771 } | |
2772 | |
2773 | |
2774 bool nmethod::is_patchable_at(address instr_addr) { | |
1748 | 2775 assert(insts_contains(instr_addr), "wrong nmethod used"); |
0 | 2776 if (is_zombie()) { |
2777 // a zombie may never be patched | |
2778 return false; | |
2779 } | |
2780 return true; | |
2781 } | |
2782 | |
2783 | |
2784 address nmethod::continuation_for_implicit_exception(address pc) { | |
2785 // Exception happened outside inline-cache check code => we are inside | |
2786 // an active nmethod => use cpc to determine a return address | |
1748 | 2787 int exception_offset = pc - code_begin(); |
0 | 2788 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
2789 #ifdef ASSERT | |
2790 if (cont_offset == 0) { | |
2791 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
2792 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
2793 HandleMark hm(thread); | |
2794 ResourceMark rm(thread); | |
2795 CodeBlob* cb = CodeCache::find_blob(pc); | |
2796 assert(cb != NULL && cb == this, ""); | |
2797 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
2798 print(); | |
2799 method()->print_codes(); | |
2800 print_code(); | |
2801 print_pcs(); | |
2802 } | |
2803 #endif | |
1250 | 2804 if (cont_offset == 0) { |
2805 // Let the normal error handling report the exception | |
2806 return NULL; | |
2807 } | |
1748 | 2808 return code_begin() + cont_offset; |
0 | 2809 } |
2810 | |
2811 | |
2812 | |
2813 void nmethod_init() { | |
2814 // make sure you didn't forget to adjust the filler fields | |
2815 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
2816 } | |
2817 | |
2818 | |
2819 //------------------------------------------------------------------------------------------- | |
2820 | |
2821 | |
2822 // QQQ might we make this work from a frame?? | |
2823 nmethodLocker::nmethodLocker(address pc) { | |
2824 CodeBlob* cb = CodeCache::find_blob(pc); | |
2825 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
2826 _nm = (nmethod*)cb; | |
2827 lock_nmethod(_nm); | |
2828 } | |
2829 | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
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|
2830 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
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diff
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|
2831 // should pass zombie_ok == true. |
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
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|
2832 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
0 | 2833 if (nm == NULL) return; |
2834 Atomic::inc(&nm->_lock_count); | |
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
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|
2835 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
0 | 2836 } |
2837 | |
2838 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
2839 if (nm == NULL) return; | |
2840 Atomic::dec(&nm->_lock_count); | |
2841 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
2842 } | |
2843 | |
1204 | 2844 |
2845 // ----------------------------------------------------------------------------- | |
2846 // nmethod::get_deopt_original_pc | |
2847 // | |
2848 // Return the original PC for the given PC if: | |
2849 // (a) the given PC belongs to a nmethod and | |
2850 // (b) it is a deopt PC | |
2851 address nmethod::get_deopt_original_pc(const frame* fr) { | |
2852 if (fr->cb() == NULL) return NULL; | |
2853 | |
2854 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
2855 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
2856 return nm->get_original_pc(fr); | |
2857 | |
2858 return NULL; | |
0 | 2859 } |
2860 | |
2861 | |
2862 // ----------------------------------------------------------------------------- | |
1135
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2863 // MethodHandle |
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|
2864 |
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|
2865 bool nmethod::is_method_handle_return(address return_pc) { |
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|
2866 if (!has_method_handle_invokes()) return false; |
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2867 PcDesc* pd = pc_desc_at(return_pc); |
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2868 if (pd == NULL) |
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|
2869 return false; |
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|
2870 return pd->is_method_handle_invoke(); |
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|
2871 } |
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|
2872 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2873 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1109
diff
changeset
|
2874 // ----------------------------------------------------------------------------- |
0 | 2875 // Verification |
2876 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2877 class VerifyOopsClosure: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2878 nmethod* _nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2879 bool _ok; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2880 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2881 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2882 bool ok() { return _ok; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2883 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2884 if ((*p) == NULL || (*p)->is_oop()) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2885 if (_ok) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2886 _nm->print_nmethod(true); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2887 _ok = false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2888 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2889 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2890 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2891 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2892 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2893 }; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2894 |
0 | 2895 void nmethod::verify() { |
2896 | |
2897 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
2898 // seems odd. | |
2899 | |
2900 if( is_zombie() || is_not_entrant() ) | |
2901 return; | |
2902 | |
2903 // Make sure all the entry points are correctly aligned for patching. | |
2904 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
2905 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2906 // assert(method()->is_oop(), "must be valid"); |
0 | 2907 |
2908 ResourceMark rm; | |
2909 | |
2910 if (!CodeCache::contains(this)) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2911 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
0 | 2912 } |
2913 | |
2914 if(is_native_method() ) | |
2915 return; | |
2916 | |
2917 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
2918 if (nm != this) { | |
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2919 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2920 this)); |
0 | 2921 } |
2922 | |
2923 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
2924 if (! p->verify(this)) { | |
2925 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
2926 } | |
2927 } | |
2928 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2929 VerifyOopsClosure voc(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2930 oops_do(&voc); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2931 assert(voc.ok(), "embedded oops must be OK"); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2932 verify_scavenge_root_oops(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2933 |
0 | 2934 verify_scopes(); |
2935 } | |
2936 | |
2937 | |
2938 void nmethod::verify_interrupt_point(address call_site) { | |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2939 // Verify IC only when nmethod installation is finished. |
13441 | 2940 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
2941 || !this->is_in_use(); // nmethod is installed, but not in 'in_use' state | |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2942 if (is_installed) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2943 Thread *cur = Thread::current(); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2944 if (CompiledIC_lock->owner() == cur || |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2945 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2946 SafepointSynchronize::is_at_safepoint())) { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2947 CompiledIC_at(this, call_site); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2948 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2949 } else { |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2950 MutexLocker ml_verify (CompiledIC_lock); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2951 CompiledIC_at(this, call_site); |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2952 } |
0 | 2953 } |
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2954 |
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2955 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
0 | 2956 assert(pd != NULL, "PcDesc must exist"); |
2957 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
9707 | 2958 pd->obj_decode_offset(), pd->should_reexecute(), pd->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
2959 pd->return_oop()); |
0 | 2960 !sd->is_top(); sd = sd->sender()) { |
2961 sd->verify(); | |
2962 } | |
2963 } | |
2964 | |
2965 void nmethod::verify_scopes() { | |
2966 if( !method() ) return; // Runtime stubs have no scope | |
2967 if (method()->is_native()) return; // Ignore stub methods. | |
2968 // iterate through all interrupt point | |
2969 // and verify the debug information is valid. | |
2970 RelocIterator iter((nmethod*)this); | |
2971 while (iter.next()) { | |
2972 address stub = NULL; | |
2973 switch (iter.type()) { | |
2974 case relocInfo::virtual_call_type: | |
2975 verify_interrupt_point(iter.addr()); | |
2976 break; | |
2977 case relocInfo::opt_virtual_call_type: | |
2978 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
2979 verify_interrupt_point(iter.addr()); | |
2980 break; | |
2981 case relocInfo::static_call_type: | |
2982 stub = iter.static_call_reloc()->static_stub(); | |
2983 //verify_interrupt_point(iter.addr()); | |
2984 break; | |
2985 case relocInfo::runtime_call_type: | |
2986 address destination = iter.reloc()->value(); | |
2987 // Right now there is no way to find out which entries support | |
2988 // an interrupt point. It would be nice if we had this | |
2989 // information in a table. | |
2990 break; | |
2991 } | |
2992 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
2993 } | |
2994 } | |
2995 | |
2996 | |
2997 // ----------------------------------------------------------------------------- | |
2998 // Non-product code | |
2999 #ifndef PRODUCT | |
3000 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3001 class DebugScavengeRoot: public OopClosure { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3002 nmethod* _nm; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3003 bool _ok; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3004 public: |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3005 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3006 bool ok() { return _ok; } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3007 virtual void do_oop(oop* p) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3008 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3009 if (_ok) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3010 _nm->print_nmethod(true); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3011 _ok = false; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3012 } |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
3013 tty->print_cr("*** scavengable oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
3014 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3015 (*p)->print(); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3016 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3017 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3018 }; |
0 | 3019 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3020 void nmethod::verify_scavenge_root_oops() { |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3021 if (UseG1GC) { |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3022 return; |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3023 } |
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3024 |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3025 if (!on_scavenge_root_list()) { |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3026 // Actually look inside, to verify the claim that it's clean. |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3027 DebugScavengeRoot debug_scavenge_root(this); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3028 oops_do(&debug_scavenge_root); |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3029 if (!debug_scavenge_root.ok()) |
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
3030 fatal("found an unadvertised bad scavengable oop in the code cache"); |
0 | 3031 } |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3032 assert(scavenge_root_not_marked(), ""); |
0 | 3033 } |
3034 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3035 #endif // PRODUCT |
0 | 3036 |
3037 // Printing operations | |
3038 | |
3039 void nmethod::print() const { | |
3040 ResourceMark rm; | |
3041 ttyLocker ttyl; // keep the following output all in one block | |
3042 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3043 tty->print("Compiled method "); |
0 | 3044 |
3045 if (is_compiled_by_c1()) { | |
3046 tty->print("(c1) "); | |
3047 } else if (is_compiled_by_c2()) { | |
3048 tty->print("(c2) "); | |
1692 | 3049 } else if (is_compiled_by_shark()) { |
3050 tty->print("(shark) "); | |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3051 } else if (is_compiled_by_jvmci()) { |
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3052 tty->print("(JVMCI) "); |
0 | 3053 } else { |
3054 tty->print("(nm) "); | |
3055 } | |
3056 | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3057 print_on(tty, NULL); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3058 |
0 | 3059 if (WizardMode) { |
3060 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
3061 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
3062 tty->print(" { "); | |
3063 if (is_in_use()) tty->print("in_use "); | |
3064 if (is_not_entrant()) tty->print("not_entrant "); | |
3065 if (is_zombie()) tty->print("zombie "); | |
3066 if (is_unloaded()) tty->print("unloaded "); | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3067 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
0 | 3068 tty->print_cr("}:"); |
3069 } | |
3070 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3071 (address)this, | |
3072 (address)this + size(), | |
3073 size()); | |
3074 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3075 relocation_begin(), | |
3076 relocation_end(), | |
3077 relocation_size()); | |
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3078 if (consts_size () > 0) tty->print_cr(" constants [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3079 consts_begin(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3080 consts_end(), |
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3081 consts_size()); |
1748 | 3082 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
3083 insts_begin(), | |
3084 insts_end(), | |
3085 insts_size()); | |
0 | 3086 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
3087 stub_begin(), | |
3088 stub_end(), | |
3089 stub_size()); | |
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3090 if (oops_size () > 0) tty->print_cr(" oops [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3091 oops_begin(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3092 oops_end(), |
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3093 oops_size()); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3094 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3095 metadata_begin(), |
da91efe96a93
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diff
changeset
|
3096 metadata_end(), |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
3097 metadata_size()); |
0 | 3098 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
3099 scopes_data_begin(), | |
3100 scopes_data_end(), | |
3101 scopes_data_size()); | |
3102 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3103 scopes_pcs_begin(), | |
3104 scopes_pcs_end(), | |
3105 scopes_pcs_size()); | |
3106 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3107 dependencies_begin(), | |
3108 dependencies_end(), | |
3109 dependencies_size()); | |
3110 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3111 handler_table_begin(), | |
3112 handler_table_end(), | |
3113 handler_table_size()); | |
3114 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
3115 nul_chk_table_begin(), | |
3116 nul_chk_table_end(), | |
3117 nul_chk_table_size()); | |
3118 } | |
3119 | |
100
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diff
changeset
|
3120 void nmethod::print_code() { |
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diff
changeset
|
3121 HandleMark hm; |
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diff
changeset
|
3122 ResourceMark m; |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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diff
changeset
|
3123 Disassembler::decode(this); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
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diff
changeset
|
3124 } |
c7c777385a15
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diff
changeset
|
3125 |
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diff
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|
3126 |
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6667042: PrintAssembly option does not work without special plugin
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diff
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|
3127 #ifndef PRODUCT |
0 | 3128 |
3129 void nmethod::print_scopes() { | |
3130 // Find the first pc desc for all scopes in the code and print it. | |
3131 ResourceMark rm; | |
3132 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
3133 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
3134 continue; | |
3135 | |
3136 ScopeDesc* sd = scope_desc_at(p->real_pc(this)); | |
19604
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3137 while (sd != NULL) { |
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3138 sd->print_on(tty, p); |
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
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18125
diff
changeset
|
3139 sd = sd->sender(); |
dcfdd60edaf1
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Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
changeset
|
3140 } |
0 | 3141 } |
3142 } | |
3143 | |
3144 void nmethod::print_dependencies() { | |
3145 ResourceMark rm; | |
3146 ttyLocker ttyl; // keep the following output all in one block | |
3147 tty->print_cr("Dependencies:"); | |
3148 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
3149 deps.print_dependency(); | |
6725
da91efe96a93
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coleenp
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diff
changeset
|
3150 Klass* ctxk = deps.context_type(); |
0 | 3151 if (ctxk != NULL) { |
6983 | 3152 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
3153 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
0 | 3154 } |
3155 } | |
3156 deps.log_dependency(); // put it into the xml log also | |
3157 } | |
3158 } | |
3159 | |
3160 | |
3161 void nmethod::print_relocations() { | |
3162 ResourceMark m; // in case methods get printed via the debugger | |
3163 tty->print_cr("relocations:"); | |
3164 RelocIterator iter(this); | |
3165 iter.print(); | |
3166 if (UseRelocIndex) { | |
3167 jint* index_end = (jint*)relocation_end() - 1; | |
3168 jint index_size = *index_end; | |
3169 jint* index_start = (jint*)( (address)index_end - index_size ); | |
3170 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
3171 if (index_size > 0) { | |
3172 jint* ip; | |
3173 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
3174 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
3175 ip[0], | |
3176 ip[1], | |
3177 header_end()+ip[0], | |
3178 relocation_begin()-1+ip[1]); | |
3179 for (; ip < index_end; ip++) | |
3180 tty->print_cr(" (%d ?)", ip[0]); | |
10973
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
3181 tty->print_cr(" @" INTPTR_FORMAT ": index_size=%d", ip, *ip); |
ef57c43512d6
8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux
ccheung
parents:
10390
diff
changeset
|
3182 ip++; |
0 | 3183 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
3184 } | |
3185 } | |
3186 } | |
3187 | |
3188 | |
3189 void nmethod::print_pcs() { | |
3190 ResourceMark m; // in case methods get printed via debugger | |
3191 tty->print_cr("pc-bytecode offsets:"); | |
3192 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
3193 p->print(this); | |
3194 } | |
3195 } | |
3196 | |
100
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diff
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|
3197 #endif // PRODUCT |
0 | 3198 |
3199 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
3200 RelocIterator iter(this, begin, end); | |
3201 bool have_one = false; | |
3202 while (iter.next()) { | |
3203 have_one = true; | |
3204 switch (iter.type()) { | |
3205 case relocInfo::none: return "no_reloc"; | |
3206 case relocInfo::oop_type: { | |
3207 stringStream st; | |
3208 oop_Relocation* r = iter.oop_reloc(); | |
3209 oop obj = r->oop_value(); | |
3210 st.print("oop("); | |
3211 if (obj == NULL) st.print("NULL"); | |
3212 else obj->print_value_on(&st); | |
3213 st.print(")"); | |
3214 return st.as_string(); | |
3215 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3216 case relocInfo::metadata_type: { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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diff
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|
3217 stringStream st; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
3218 metadata_Relocation* r = iter.metadata_reloc(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3219 Metadata* obj = r->metadata_value(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3220 st.print("metadata("); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3221 if (obj == NULL) st.print("NULL"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3222 else obj->print_value_on(&st); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3223 st.print(")"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
diff
changeset
|
3224 return st.as_string(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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diff
changeset
|
3225 } |
0 | 3226 case relocInfo::virtual_call_type: return "virtual_call"; |
3227 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
3228 case relocInfo::static_call_type: return "static_call"; | |
3229 case relocInfo::static_stub_type: return "static_stub"; | |
3230 case relocInfo::runtime_call_type: return "runtime_call"; | |
3231 case relocInfo::external_word_type: return "external_word"; | |
3232 case relocInfo::internal_word_type: return "internal_word"; | |
3233 case relocInfo::section_word_type: return "section_word"; | |
3234 case relocInfo::poll_type: return "poll"; | |
3235 case relocInfo::poll_return_type: return "poll_return"; | |
3236 case relocInfo::type_mask: return "type_bit_mask"; | |
3237 } | |
3238 } | |
3239 return have_one ? "other" : NULL; | |
3240 } | |
3241 | |
3242 // Return a the last scope in (begin..end] | |
3243 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
3244 PcDesc* p = pc_desc_near(begin+1); | |
3245 if (p != NULL && p->real_pc(this) <= end) { | |
3246 return new ScopeDesc(this, p->scope_decode_offset(), | |
9707 | 3247 p->obj_decode_offset(), p->should_reexecute(), p->rethrow_exception(), |
1253
f70b0d9ab095
6910618: C2: Error: assert(d->is_oop(),"JVM_ArrayCopy: dst not an oop")
kvn
parents:
1250
diff
changeset
|
3248 p->return_oop()); |
0 | 3249 } |
3250 return NULL; | |
3251 } | |
3252 | |
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
3253 void nmethod::print_nmethod_labels(outputStream* stream, address block_begin) const { |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3254 if (block_begin == entry_point()) stream->print_cr("[Entry Point]"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3255 if (block_begin == verified_entry_point()) stream->print_cr("[Verified Entry Point]"); |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3256 if (JVMCI_ONLY(_exception_offset >= 0 &&) block_begin == exception_begin()) stream->print_cr("[Exception Handler]"); |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3257 if (block_begin == stub_begin()) stream->print_cr("[Stub Code]"); |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3258 if (JVMCI_ONLY(_deoptimize_offset >= 0 &&) block_begin == deopt_handler_begin()) stream->print_cr("[Deopt Handler Code]"); |
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3259 |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3260 if (has_method_handle_invokes()) |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3261 if (block_begin == deopt_mh_handler_begin()) stream->print_cr("[Deopt MH Handler Code]"); |
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3262 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3263 if (block_begin == consts_begin()) stream->print_cr("[Constants]"); |
1691
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3264 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3265 if (block_begin == entry_point()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3266 methodHandle m = method(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3267 if (m.not_null()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3268 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3269 m->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3270 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3271 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3272 if (m.not_null() && !is_osr_method()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3273 ResourceMark rm; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3274 int sizeargs = m->size_of_parameters(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3275 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
|
3276 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3277 { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3278 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3279 if (!m->is_static()) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3280 sig_bt[sig_index++] = T_OBJECT; // 'this' |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3281 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
|
3282 BasicType t = ss.type(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3283 sig_bt[sig_index++] = t; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3284 if (type2size[t] == 2) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3285 sig_bt[sig_index++] = T_VOID; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3286 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3287 assert(type2size[t] == 1, "size is 1 or 2"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3288 } |
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6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
3289 } |
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6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3290 assert(sig_index == sizeargs, ""); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
3291 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
3292 const char* spname = "sp"; // make arch-specific? |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3293 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
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6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
3294 int stack_slot_offset = this->frame_size() * wordSize; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3295 int tab1 = 14, tab2 = 24; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3296 int sig_index = 0; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3297 int arg_index = (m->is_static() ? 0 : -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3298 bool did_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
3299 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
4e6abf09f540
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jrose
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1141
diff
changeset
|
3300 bool at_this = (arg_index == -1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3301 bool at_old_sp = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3302 BasicType t = (at_this ? T_OBJECT : ss.type()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3303 assert(t == sig_bt[sig_index], "sigs in sync"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3304 if (at_this) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3305 stream->print(" # this: "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3306 else |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3307 stream->print(" # parm%d: ", arg_index); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3308 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3309 VMReg fst = regs[sig_index].first(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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1141
diff
changeset
|
3310 VMReg snd = regs[sig_index].second(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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diff
changeset
|
3311 if (fst->is_reg()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3312 stream->print("%s", fst->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3313 if (snd->is_valid()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3314 stream->print(":%s", snd->name()); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3315 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3316 } else if (fst->is_stack()) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3317 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
|
3318 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
|
3319 stream->print("[%s+0x%x]", spname, offset); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3320 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3321 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
|
3322 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3323 stream->print(" "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3324 stream->move_to(tab2); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3325 stream->print("= "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3326 if (at_this) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3327 m->method_holder()->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3328 } else { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3329 bool did_name = false; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3330 if (!at_this && ss.is_object()) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
3331 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
|
3332 if (name != NULL) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3333 name->print_value_on(stream); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3334 did_name = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3335 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3336 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3337 if (!did_name) |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3338 stream->print("%s", type2name(t)); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3339 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3340 if (at_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3341 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3342 did_old_sp = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3343 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3344 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3345 sig_index += type2size[t]; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3346 arg_index += 1; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3347 if (!at_this) ss.next(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3348 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3349 if (!did_old_sp) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3350 stream->print(" # "); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3351 stream->move_to(tab1); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3352 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
|
3353 stream->print(" (%s of caller)", spname); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3354 stream->cr(); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3355 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3356 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3357 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3358 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3359 |
0 | 3360 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
3361 // First, find an oopmap in (begin, end]. | |
3362 // We use the odd half-closed interval so that oop maps and scope descs | |
3363 // which are tied to the byte after a call are printed with the call itself. | |
1748 | 3364 address base = code_begin(); |
0 | 3365 OopMapSet* oms = oop_maps(); |
3366 if (oms != NULL) { | |
3367 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
3368 OopMap* om = oms->at(i); | |
3369 address pc = base + om->offset(); | |
3370 if (pc > begin) { | |
3371 if (pc <= end) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3372 st->move_to(column); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3373 st->print("; "); |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3374 om->print_on(st); |
0 | 3375 } |
3376 break; | |
3377 } | |
3378 } | |
3379 } | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3380 |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3381 // Print any debug info present at this pc. |
0 | 3382 ScopeDesc* sd = scope_desc_in(begin, end); |
3383 if (sd != NULL) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3384 st->move_to(column); |
0 | 3385 if (sd->bci() == SynchronizationEntryBCI) { |
3386 st->print(";*synchronization entry"); | |
3387 } else { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3388 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3389 st->print("method is NULL"); |
0 | 3390 } else if (sd->method()->is_native()) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3391 st->print("method is native"); |
0 | 3392 } else { |
2142 | 3393 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
0 | 3394 st->print(";*%s", Bytecodes::name(bc)); |
3395 switch (bc) { | |
3396 case Bytecodes::_invokevirtual: | |
3397 case Bytecodes::_invokespecial: | |
3398 case Bytecodes::_invokestatic: | |
3399 case Bytecodes::_invokeinterface: | |
3400 { | |
2142 | 3401 Bytecode_invoke invoke(sd->method(), sd->bci()); |
0 | 3402 st->print(" "); |
2142 | 3403 if (invoke.name() != NULL) |
3404 invoke.name()->print_symbol_on(st); | |
0 | 3405 else |
3406 st->print("<UNKNOWN>"); | |
3407 break; | |
3408 } | |
3409 case Bytecodes::_getfield: | |
3410 case Bytecodes::_putfield: | |
3411 case Bytecodes::_getstatic: | |
3412 case Bytecodes::_putstatic: | |
3413 { | |
2142 | 3414 Bytecode_field field(sd->method(), sd->bci()); |
0 | 3415 st->print(" "); |
2142 | 3416 if (field.name() != NULL) |
3417 field.name()->print_symbol_on(st); | |
0 | 3418 else |
3419 st->print("<UNKNOWN>"); | |
3420 } | |
3421 } | |
3422 } | |
21205
f34ae5c01864
include reexecute, rethrow_exception and return_oop info when disassembling debug scopes
Doug Simon <doug.simon@oracle.com>
parents:
21158
diff
changeset
|
3423 st->print(" {reexecute=%d rethrow=%d return_oop=%d}", sd->should_reexecute(), sd->rethrow_exception(), sd->return_oop()); |
0 | 3424 } |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3425 |
0 | 3426 // Print all scopes |
3427 for (;sd != NULL; sd = sd->sender()) { | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3428 st->move_to(column); |
0 | 3429 st->print("; -"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3430 if (sd->method() == NULL) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3431 st->print("method is NULL"); |
0 | 3432 } else { |
3433 sd->method()->print_short_name(st); | |
3434 } | |
3435 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
3436 if (lineno != -1) { | |
3437 st->print("@%d (line %d)", sd->bci(), lineno); | |
3438 } else { | |
3439 st->print("@%d", sd->bci()); | |
3440 } | |
3441 st->cr(); | |
3442 } | |
3443 } | |
3444 | |
3445 // Print relocation information | |
3446 const char* str = reloc_string_for(begin, end); | |
3447 if (str != NULL) { | |
3448 if (sd != NULL) st->cr(); | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3449 st->move_to(column); |
0 | 3450 st->print("; {%s}", str); |
3451 } | |
1748 | 3452 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
0 | 3453 if (cont_offset != 0) { |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3454 st->move_to(column); |
1748 | 3455 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
0 | 3456 } |
3457 | |
3458 } | |
3459 | |
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3460 #ifndef PRODUCT |
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3461 |
0 | 3462 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
|
3463 st->print("nmethod"); |
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3464 print_on(st, NULL); |
0 | 3465 } |
3466 | |
3467 void nmethod::print_calls(outputStream* st) { | |
3468 RelocIterator iter(this); | |
3469 while (iter.next()) { | |
3470 switch (iter.type()) { | |
3471 case relocInfo::virtual_call_type: | |
3472 case relocInfo::opt_virtual_call_type: { | |
3473 VerifyMutexLocker mc(CompiledIC_lock); | |
20277
882004b9e7e1
8047362: Add a version of CompiledIC_at that doesn't create a new RelocIterator
stefank
parents:
20269
diff
changeset
|
3474 CompiledIC_at(&iter)->print(); |
0 | 3475 break; |
3476 } | |
3477 case relocInfo::static_call_type: | |
3478 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
3479 compiledStaticCall_at(iter.reloc())->print(); | |
3480 break; | |
3481 } | |
3482 } | |
3483 } | |
3484 | |
3485 void nmethod::print_handler_table() { | |
3486 ExceptionHandlerTable(this).print(); | |
3487 } | |
3488 | |
3489 void nmethod::print_nul_chk_table() { | |
1748 | 3490 ImplicitExceptionTable(this).print(code_begin()); |
0 | 3491 } |
14733
b10e42998d01
nmethod: fix -XX:+PrintNMethodStatistics
Bernhard Urban <bernhard.urban@jku.at>
parents:
14726
diff
changeset
|
3492 #endif // PRODUCT |
0 | 3493 |
3494 void nmethod::print_statistics() { | |
3495 ttyLocker ttyl; | |
3496 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
|
3497 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
|
3498 #ifdef COMPILER1 |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3499 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
|
3500 #endif |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3501 #ifdef COMPILER2 |
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3502 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
|
3503 #endif |
22298 | 3504 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3505 jvmci_java_nmethod_stats.print_nmethod_stats("JVMCI"); |
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3506 #endif |
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3507 #ifdef SHARK |
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3508 shark_java_nmethod_stats.print_nmethod_stats("Shark"); |
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3509 #endif |
12758
ca33948fb804
nmethod.cpp: s/unknwon/unknown/
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12704
diff
changeset
|
3510 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
0 | 3511 DebugInformationRecorder::print_statistics(); |
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3512 #ifndef PRODUCT |
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3513 pc_nmethod_stats.print_pc_stats(); |
15434
7461c3bf278a
Improve PrintNMethodStatistics output: add Shark compiler and metadata size. Properly record nmethods for native wrapper.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
15164
diff
changeset
|
3514 #endif |
0 | 3515 Dependencies::print_statistics(); |
3516 if (xtty != NULL) xtty->tail("statistics"); | |
3517 } | |
21153
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3518 |
22298 | 3519 #if INCLUDE_JVMCI |
22725
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3520 void nmethod::clear_jvmci_installed_code() { |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3521 // This must be done carefully to maintain nmethod remembered sets properly |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3522 BarrierSet* bs = Universe::heap()->barrier_set(); |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3523 bs->write_ref_nmethod_pre(&_jvmci_installed_code, this); |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3524 _jvmci_installed_code = NULL; |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3525 bs->write_ref_nmethod_post(&_jvmci_installed_code, this); |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
diff
changeset
|
3526 } |
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
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22643
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3527 |
22643
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22548
diff
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|
3528 void nmethod::maybe_invalidate_installed_code() { |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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|
3529 if (_jvmci_installed_code != NULL) { |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
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diff
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|
3530 if (!is_alive()) { |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
3531 // Break the link between nmethod and InstalledCode such that the nmethod |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
3532 // can subsequently be flushed safely. The link must be maintained while |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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|
3533 // the method could have live activations since invalidateInstalledCode |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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|
3534 // might want to invalidate all existing activations. |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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|
3535 InstalledCode::set_address(_jvmci_installed_code, 0); |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
3536 InstalledCode::set_entryPoint(_jvmci_installed_code, 0); |
22725
eada427470a3
Use proper GC barriers when clearing _jvmci_installed_code
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22643
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|
3537 clear_jvmci_installed_code(); |
22643
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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3538 } else if (is_not_entrant()) { |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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diff
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|
3539 InstalledCode::set_entryPoint(_jvmci_installed_code, 0); |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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|
3540 } |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
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|
3541 } |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22548
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3542 } |
456800cd1a17
Ensure that not_entrant InstalledCode can still be invalidated
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
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3543 |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
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|
3544 char* nmethod::jvmci_installed_code_name(char* buf, size_t buflen) { |
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
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3545 if (!this->is_compiled_by_jvmci()) { |
21153
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3546 return NULL; |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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diff
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|
3547 } |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
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|
3548 oop installedCode = this->jvmci_installed_code(); |
21153
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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|
3549 if (installedCode != NULL) { |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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|
3550 oop installedCodeName = NULL; |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3551 if (installedCode->is_a(InstalledCode::klass())) { |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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diff
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3552 installedCodeName = InstalledCode::name(installedCode); |
1621af5cb444
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Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3553 } |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3554 if (installedCodeName != NULL) { |
21158
d114be1b5b3f
explicitly convert to int to satisfy windows builder
Christian Wirth <christian.wirth@oracle.com>
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3555 return java_lang_String::as_utf8_string(installedCodeName, buf, (int)buflen); |
21153
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Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3556 } else { |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3557 jio_snprintf(buf, buflen, "null"); |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3558 return buf; |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
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|
3559 } |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3560 } |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3561 jio_snprintf(buf, buflen, "noInstalledCode"); |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
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|
3562 return buf; |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
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|
3563 } |
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
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3564 #endif |