Mercurial > hg > graal-jvmci-8
annotate src/share/vm/code/nmethod.cpp @ 22298:c28cb37b2e1d
Rename JVMCI to INCLUDE_JVMCI.
| author | twisti |
|---|---|
| date | Wed, 22 Jul 2015 08:56:03 -0700 |
| parents | 7ca4c8c37ca9 |
| children | 02fc27dc1da7 |
| rev | line source |
|---|---|
| 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/jvmciJavaAccess.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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Bernhard Urban <bernhard.urban@jku.at>
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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(); |
|
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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 } |
|
989
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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)) | |
|
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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; |
|
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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(); |
|
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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); |
|
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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); | |
|
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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() { |
|
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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 | |
|
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953 init_defaults(); |
| 0 | 954 _method = method; |
|
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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 | |
|
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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 } | |
|
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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); | |
|
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995 if (offsets->value(CodeOffsets::DeoptMH) != -1) { |
|
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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); |
|
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1034 } |
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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 | |
|
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1050 bool printnmethods = PrintNMethods || PrintNMethodsAtLevel == _comp_level |
|
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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. | |
|
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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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1141 if (PrintDebugInfo || CompilerOracle::has_option_string(_method, "PrintDebugInfo")) { |
| 0 | 1142 print_scopes(); |
| 1143 } | |
|
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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) { |
|
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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(); |
|
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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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diff
changeset
|
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); |
|
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1346 // Ok, to lookup references to zombies here |
|
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|
1347 CodeBlob *cb = CodeCache::find_blob_unsafe(ic->ic_destination()); |
|
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1348 if( cb != NULL && cb->is_nmethod() ) { |
|
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|
1349 nmethod* nm = (nmethod*)cb; |
|
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1350 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
|
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1351 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
|
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|
1352 assert(ic->is_clean(), "IC should be clean"); |
|
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|
1353 } |
|
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|
1354 } |
|
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|
1355 break; |
|
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|
1356 } |
|
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changeset
|
1357 case relocInfo::static_call_type: { |
|
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|
1358 CompiledStaticCall *csc = compiledStaticCall_at(iter.reloc()); |
|
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1359 CodeBlob *cb = CodeCache::find_blob_unsafe(csc->destination()); |
|
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|
1360 if( cb != NULL && cb->is_nmethod() ) { |
|
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|
1361 nmethod* nm = (nmethod*)cb; |
|
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|
1362 // Verify that inline caches pointing to both zombie and not_entrant methods are clean |
|
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1363 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
|
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|
1364 assert(csc->is_clean(), "IC should be clean"); |
|
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|
1365 } |
|
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|
1366 } |
|
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|
1367 break; |
|
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|
1368 } |
|
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|
1369 } |
|
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|
1370 } |
|
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|
1371 } |
|
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|
1372 |
|
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|
1373 int nmethod::verify_icholder_relocations() { |
|
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|
1374 int count = 0; |
|
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|
1375 |
|
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|
1376 RelocIterator iter(this); |
|
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|
1377 while(iter.next()) { |
|
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changeset
|
1378 if (iter.type() == relocInfo::virtual_call_type) { |
|
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|
1379 if (CompiledIC::is_icholder_call_site(iter.virtual_call_reloc())) { |
|
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changeset
|
1380 CompiledIC *ic = CompiledIC_at(&iter); |
|
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|
1381 if (TraceCompiledIC) { |
|
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|
1382 tty->print("noticed icholder " INTPTR_FORMAT " ", p2i(ic->cached_icholder())); |
|
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|
1383 ic->print(); |
|
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|
1384 } |
|
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changeset
|
1385 assert(ic->cached_icholder() != NULL, "must be non-NULL"); |
|
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|
1386 count++; |
|
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|
1387 } |
|
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|
1388 } |
|
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|
1389 } |
|
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|
1390 |
|
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|
1391 return count; |
|
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|
1392 } |
|
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|
1393 |
|
989
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diff
changeset
|
1394 // This is a private interface with the sweeper. |
| 0 | 1395 void nmethod::mark_as_seen_on_stack() { |
|
12324
510fbd28919c
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parents:
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diff
changeset
|
1396 assert(is_alive(), "Must be an alive method"); |
|
1644
2a47bd84841f
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parents:
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diff
changeset
|
1397 // Set the traversal mark to ensure that the sweeper does 2 |
|
2a47bd84841f
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changeset
|
1398 // cleaning passes before moving to zombie. |
| 0 | 1399 set_stack_traversal_mark(NMethodSweeper::traversal_count()); |
| 1400 } | |
| 1401 | |
|
2342
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changeset
|
1402 // Tell if a non-entrant method can be converted to a zombie (i.e., |
|
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changeset
|
1403 // there are no activations on the stack, not in use by the VM, |
|
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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
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changeset
|
1411 return stack_traversal_mark()+1 < NMethodSweeper::traversal_count() && |
|
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changeset
|
1412 !is_locked_by_vm(); |
| 0 | 1413 } |
| 1414 | |
| 1415 void nmethod::inc_decompile_count() { | |
|
21559
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changeset
|
1416 if (!is_compiled_by_c2() && !is_compiled_by_jvmci()) return; |
| 0 | 1417 // Could be gated by ProfileTraps, but do not bother... |
|
6725
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6964458: Reimplement class meta-data storage to use native memory
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changeset
|
1418 Method* m = method(); |
| 0 | 1419 if (m == NULL) return; |
|
6725
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changeset
|
1420 MethodData* mdo = m->method_data(); |
| 0 | 1421 if (mdo == NULL) return; |
|
6725
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changeset
|
1422 // There is a benign race here. See comments in methodData.hpp. |
| 0 | 1423 mdo->inc_decompile_count(); |
| 1424 } | |
| 1425 | |
|
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1426 void nmethod::increase_unloading_clock() { |
|
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|
1427 _global_unloading_clock++; |
|
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|
1428 if (_global_unloading_clock == 0) { |
|
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changeset
|
1429 // _nmethods are allocated with _unloading_clock == 0, |
|
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|
1430 // so 0 is never used as a clock value. |
|
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changeset
|
1431 _global_unloading_clock = 1; |
|
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|
1432 } |
|
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|
1433 } |
|
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|
1434 |
|
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|
1435 void nmethod::set_unloading_clock(unsigned char unloading_clock) { |
|
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changeset
|
1436 OrderAccess::release_store((volatile jubyte*)&_unloading_clock, unloading_clock); |
|
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|
1437 } |
|
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changeset
|
1438 |
|
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changeset
|
1439 unsigned char nmethod::unloading_clock() { |
|
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changeset
|
1440 return (unsigned char)OrderAccess::load_acquire((volatile jubyte*)&_unloading_clock); |
|
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changeset
|
1441 } |
|
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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 | |
|
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1458 " unloadable], Method*(" INTPTR_FORMAT |
| 0 | 1459 "), cause(" INTPTR_FORMAT ")", |
| 1460 this, (address)_method, (address)cause); | |
|
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1461 if (!Universe::heap()->is_gc_active()) |
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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 } | |
|
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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 |
|
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1470 // have the Method* live here, in case we unload the nmethod because |
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1471 // it is pointing to some oop (other than the Method*) being unloaded. |
| 0 | 1472 if (_method != NULL) { |
|
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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 |
|
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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 } | |
|
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1489 |
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1490 // Unregister must be done before the state change |
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1491 Universe::heap()->unregister_nmethod(this); |
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1492 |
| 22298 | 1493 #if INCLUDE_JVMCI |
| 21143 | 1494 // The method can only be unloaded after the pointer to the installed code |
| 1495 // Java wrapper is no longer alive. Here we need to clear out this weak | |
| 1496 // reference to the dead object. Nulling out the reference has to happen | |
| 1497 // after the method is unregistered since the original value may be still | |
| 1498 // tracked by the rset. | |
|
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1499 if (_jvmci_installed_code != NULL) { |
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1500 InstalledCode::set_address(_jvmci_installed_code, 0); |
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|
1501 _jvmci_installed_code = NULL; |
| 21143 | 1502 } |
| 1503 #endif | |
| 1504 | |
|
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1505 _state = unloaded; |
| 0 | 1506 |
|
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1507 // Log the unloading. |
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1508 log_state_change(); |
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1509 |
|
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1510 // The Method* is gone at this point |
| 0 | 1511 assert(_method == NULL, "Tautology"); |
| 1512 | |
|
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1513 set_osr_link(NULL); |
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1514 //set_scavenge_root_link(NULL); // done by prune_scavenge_root_nmethods |
|
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|
1515 NMethodSweeper::report_state_change(this); |
| 0 | 1516 } |
| 1517 | |
| 1518 void nmethod::invalidate_osr_method() { | |
| 1519 assert(_entry_bci != InvocationEntryBci, "wrong kind of nmethod"); | |
| 1520 // Remove from list of active nmethods | |
| 1521 if (method() != NULL) | |
|
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|
1522 method()->method_holder()->remove_osr_nmethod(this); |
| 0 | 1523 // Set entry as invalid |
| 1524 _entry_bci = InvalidOSREntryBci; | |
| 1525 } | |
| 1526 | |
|
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|
1527 void nmethod::log_state_change() const { |
| 0 | 1528 if (LogCompilation) { |
| 1529 if (xtty != NULL) { | |
| 1530 ttyLocker ttyl; // keep the following output all in one block | |
|
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|
1531 if (_state == unloaded) { |
|
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|
1532 xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'", |
|
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|
1533 os::current_thread_id()); |
|
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|
1534 } else { |
|
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|
1535 xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s", |
|
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|
1536 os::current_thread_id(), |
|
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1537 (_state == zombie ? " zombie='1'" : "")); |
|
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|
1538 } |
| 0 | 1539 log_identity(xtty); |
| 1540 xtty->stamp(); | |
| 1541 xtty->end_elem(); | |
| 1542 } | |
| 1543 } | |
|
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|
1544 if (PrintCompilation && _state != unloaded) { |
|
2405
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parents:
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diff
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|
1545 print_on(tty, _state == zombie ? "made zombie" : "made not entrant"); |
| 0 | 1546 } |
| 1547 } | |
| 1548 | |
|
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|
1549 /** |
|
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|
1550 * Common functionality for both make_not_entrant and make_zombie |
|
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|
1551 */ |
| 1141 | 1552 bool nmethod::make_not_entrant_or_zombie(unsigned int state) { |
| 0 | 1553 assert(state == zombie || state == not_entrant, "must be zombie or not_entrant"); |
|
2342
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|
1554 assert(!is_zombie(), "should not already be a zombie"); |
| 0 | 1555 |
|
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|
1556 // Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below. |
| 0 | 1557 nmethodLocker nml(this); |
|
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|
1558 methodHandle the_method(method()); |
| 1726 | 1559 No_Safepoint_Verifier nsv; |
| 0 | 1560 |
| 12080 | 1561 // during patching, depending on the nmethod state we must notify the GC that |
| 1562 // code has been unloaded, unregistering it. We cannot do this right while | |
| 1563 // holding the Patching_lock because we need to use the CodeCache_lock. This | |
| 1564 // would be prone to deadlocks. | |
| 1565 // This flag is used to remember whether we need to later lock and unregister. | |
| 1566 bool nmethod_needs_unregister = false; | |
| 1567 | |
| 0 | 1568 { |
|
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|
1569 // invalidate osr nmethod before acquiring the patching lock since |
|
032260830071
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|
1570 // they both acquire leaf locks and we don't want a deadlock. |
|
032260830071
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|
1571 // This logic is equivalent to the logic below for patching the |
|
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|
1572 // verified entry point of regular methods. |
|
032260830071
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|
1573 if (is_osr_method()) { |
|
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|
1574 // this effectively makes the osr nmethod not entrant |
|
032260830071
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|
1575 invalidate_osr_method(); |
|
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|
1576 } |
|
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|
1577 |
| 0 | 1578 // Enter critical section. Does not block for safepoint. |
| 1579 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
|
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|
1580 |
|
1644
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|
1581 if (_state == state) { |
|
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|
1582 // another thread already performed this transition so nothing |
|
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|
1583 // to do, but return false to indicate this. |
|
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|
1584 return false; |
|
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|
1585 } |
|
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|
1586 |
| 0 | 1587 // The caller can be calling the method statically or through an inline |
| 1588 // cache call. | |
|
1109
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|
1589 if (!is_osr_method() && !is_not_entrant()) { |
| 0 | 1590 NativeJump::patch_verified_entry(entry_point(), verified_entry_point(), |
| 1591 SharedRuntime::get_handle_wrong_method_stub()); | |
| 1592 } | |
| 1593 | |
|
1644
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|
1594 if (is_in_use()) { |
|
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|
1595 // It's a true state change, so mark the method as decompiled. |
|
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|
1596 // Do it only for transition from alive. |
|
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|
1597 inc_decompile_count(); |
|
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|
1598 } |
|
1206
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6614597: Performance variability in jvm2008 xml.validation
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|
1599 |
| 12080 | 1600 // If the state is becoming a zombie, signal to unregister the nmethod with |
| 1601 // the heap. | |
| 1602 // This nmethod may have already been unloaded during a full GC. | |
| 1603 if ((state == zombie) && !is_unloaded()) { | |
| 1604 nmethod_needs_unregister = true; | |
| 1605 } | |
| 1606 | |
|
12324
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|
1607 // Must happen before state change. Otherwise we have a race condition in |
|
510fbd28919c
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|
1608 // nmethod::can_not_entrant_be_converted(). I.e., a method can immediately |
|
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|
1609 // transition its state from 'not_entrant' to 'zombie' without having to wait |
|
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|
1610 // for stack scanning. |
|
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|
1611 if (state == not_entrant) { |
|
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|
1612 mark_as_seen_on_stack(); |
|
510fbd28919c
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|
1613 OrderAccess::storestore(); |
|
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|
1614 } |
|
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|
1615 |
| 0 | 1616 // Change state |
|
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|
1617 _state = state; |
|
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|
1618 |
|
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|
1619 // Log the transition once |
|
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|
1620 log_state_change(); |
|
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|
1621 |
|
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|
1622 // Remove nmethod from method. |
|
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|
1623 // We need to check if both the _code and _from_compiled_code_entry_point |
|
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|
1624 // refer to this nmethod because there is a race in setting these two fields |
|
6725
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1625 // in Method* as seen in bugid 4947125. |
|
1644
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|
1626 // If the vep() points to the zombie nmethod, the memory for the nmethod |
|
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|
1627 // could be flushed and the compiler and vtable stubs could still call |
|
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|
1628 // through it. |
|
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|
1629 if (method() != NULL && (method()->code() == this || |
|
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|
1630 method()->from_compiled_entry() == verified_entry_point())) { |
|
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|
1631 HandleMark hm; |
|
2a47bd84841f
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|
1632 method()->clear_code(); |
|
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|
1633 } |
| 0 | 1634 } // leave critical region under Patching_lock |
| 1635 | |
|
1538
bfe29ec02863
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|
1636 // When the nmethod becomes zombie it is no longer alive so the |
|
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|
1637 // dependencies must be flushed. nmethods in the not_entrant |
|
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|
1638 // state will be flushed later when the transition to zombie |
|
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diff
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|
1639 // happens or they get unloaded. |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1640 if (state == zombie) { |
| 1726 | 1641 { |
| 1642 // Flushing dependecies must be done before any possible | |
| 1643 // safepoint can sneak in, otherwise the oops used by the | |
| 1644 // dependency logic could have become stale. | |
| 1645 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 12080 | 1646 if (nmethod_needs_unregister) { |
| 1647 Universe::heap()->unregister_nmethod(this); | |
| 1648 } | |
| 1726 | 1649 flush_dependencies(NULL); |
| 1650 } | |
|
1644
2a47bd84841f
6965184: possible races in make_not_entrant_or_zombie
never
parents:
1616
diff
changeset
|
1651 |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1652 // zombie only - if a JVMTI agent has enabled the CompiledMethodUnload |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1653 // event and it hasn't already been reported for this nmethod then |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1654 // report it now. The event may have been reported earilier if the GC |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1655 // marked it for unloading). JvmtiDeferredEventQueue support means |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1656 // we no longer go to a safepoint here. |
|
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1657 post_compiled_method_unload(); |
| 1726 | 1658 |
| 1659 #ifdef ASSERT | |
| 1660 // It's no longer safe to access the oops section since zombie | |
| 1661 // nmethods aren't scanned for GC. | |
| 1662 _oops_are_stale = true; | |
| 1663 #endif | |
|
12161
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1664 // the Method may be reclaimed by class unloading now that the |
|
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1665 // nmethod is in zombie state |
|
e1fbb86b47e4
8016277: Crash in nmethod::is_compiled_by_c1() on x86
roland
parents:
12080
diff
changeset
|
1666 set_method(NULL); |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1667 } else { |
|
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1668 assert(state == not_entrant, "other cases may need to be handled differently"); |
|
bfe29ec02863
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parents:
1490
diff
changeset
|
1669 } |
| 22298 | 1670 #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
|
1671 if (_jvmci_installed_code != NULL) { |
|
15161
2c940b1a48d8
Convert InstalledCode from an interface into an abstract class.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
14968
diff
changeset
|
1672 // Break the link between nmethod and InstalledCode such that the nmethod can subsequently be flushed safely. |
|
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
1673 InstalledCode::set_address(_jvmci_installed_code, 0); |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1674 } |
|
12414
98031e66de15
Fix unittests
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
12411
diff
changeset
|
1675 #endif |
|
1538
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diff
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|
1676 |
| 0 | 1677 if (TraceCreateZombies) { |
| 9707 | 1678 ResourceMark m; |
|
13230
01080e31692d
fixed crash when TraceCreateZombies is enabled
Doug Simon <doug.simon@oracle.com>
parents:
13102
diff
changeset
|
1679 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 | 1680 } |
| 1681 | |
|
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13071
diff
changeset
|
1682 NMethodSweeper::report_state_change(this); |
|
1109
032260830071
5057818: codecache full and compiler disabled in bigapps fastdebug run
never
parents:
994
diff
changeset
|
1683 return true; |
| 0 | 1684 } |
| 1685 | |
| 1686 void nmethod::flush() { | |
| 1687 // Note that there are no valid oops in the nmethod anymore. | |
| 1688 assert(is_zombie() || (is_osr_method() && is_unloaded()), "must be a zombie method"); | |
| 1689 assert(is_marked_for_reclamation() || (is_osr_method() && is_unloaded()), "must be marked for reclamation"); | |
| 1690 | |
| 1691 assert (!is_locked_by_vm(), "locked methods shouldn't be flushed"); | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1692 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1693 |
| 1694 // completely deallocate this method | |
|
4872
aa3d708d67c4
7141200: log some interesting information in ring buffers for crashes
never
parents:
4006
diff
changeset
|
1695 Events::log(JavaThread::current(), "flushing nmethod " INTPTR_FORMAT, this); |
| 0 | 1696 if (PrintMethodFlushing) { |
| 1202 | 1697 tty->print_cr("*flushing nmethod %3d/" INTPTR_FORMAT ". Live blobs:" UINT32_FORMAT "/Free CodeCache:" SIZE_FORMAT "Kb", |
| 1698 _compile_id, this, CodeCache::nof_blobs(), CodeCache::unallocated_capacity()/1024); | |
| 0 | 1699 } |
| 1700 | |
| 1701 // We need to deallocate any ExceptionCache data. | |
| 1702 // Note that we do not need to grab the nmethod lock for this, it | |
| 1703 // better be thread safe if we're disposing of it! | |
| 1704 ExceptionCache* ec = exception_cache(); | |
| 1705 set_exception_cache(NULL); | |
| 1706 while(ec != NULL) { | |
| 1707 ExceptionCache* next = ec->next(); | |
| 1708 delete ec; | |
| 1709 ec = next; | |
| 1710 } | |
| 1711 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1712 if (on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1713 CodeCache::drop_scavenge_root_nmethod(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1714 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1715 |
| 1692 | 1716 #ifdef SHARK |
|
1845
a222fcfba398
6990549: Zero and Shark fixes after 6978355 and 6953144
twisti
parents:
1784
diff
changeset
|
1717 ((SharkCompiler *) compiler())->free_compiled_method(insts_begin()); |
| 1692 | 1718 #endif // SHARK |
| 1719 | |
| 0 | 1720 ((CodeBlob*)(this))->flush(); |
| 1721 | |
| 1722 CodeCache::free(this); | |
| 1723 } | |
| 1724 | |
| 1725 | |
| 1726 // | |
| 1727 // Notify all classes this nmethod is dependent on that it is no | |
| 1728 // longer dependent. This should only be called in two situations. | |
| 1729 // First, when a nmethod transitions to a zombie all dependents need | |
| 1730 // to be clear. Since zombification happens at a safepoint there's no | |
| 1731 // synchronization issues. The second place is a little more tricky. | |
| 1732 // During phase 1 of mark sweep class unloading may happen and as a | |
| 1733 // result some nmethods may get unloaded. In this case the flushing | |
| 1734 // of dependencies must happen during phase 1 since after GC any | |
| 1735 // dependencies in the unloaded nmethod won't be updated, so | |
| 1736 // traversing the dependency information in unsafe. In that case this | |
| 1737 // function is called with a non-NULL argument and this function only | |
| 1738 // notifies instanceKlasses that are reachable | |
| 1739 | |
| 1740 void nmethod::flush_dependencies(BoolObjectClosure* is_alive) { | |
|
1538
bfe29ec02863
6950075: nmethod sweeper should operate concurrently
never
parents:
1490
diff
changeset
|
1741 assert_locked_or_safepoint(CodeCache_lock); |
| 0 | 1742 assert(Universe::heap()->is_gc_active() == (is_alive != NULL), |
| 1743 "is_alive is non-NULL if and only if we are called during GC"); | |
| 1744 if (!has_flushed_dependencies()) { | |
| 1745 set_has_flushed_dependencies(); | |
| 1746 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1747 Klass* klass = deps.context_type(); |
| 0 | 1748 if (klass == NULL) continue; // ignore things like evol_method |
| 1749 | |
| 1750 // During GC the is_alive closure is non-NULL, and is used to | |
| 1751 // determine liveness of dependees that need to be updated. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1752 if (is_alive == NULL || klass->is_loader_alive(is_alive)) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1753 InstanceKlass::cast(klass)->remove_dependent_nmethod(this); |
| 0 | 1754 } |
| 1755 } | |
| 1756 } | |
| 1757 } | |
| 1758 | |
| 1759 | |
| 1760 // If this oop is not live, the nmethod can be unloaded. | |
|
6787
8966c2d65d96
7200470: KeepAliveClosure not needed in CodeCache::do_unloading
brutisso
parents:
6725
diff
changeset
|
1761 bool nmethod::can_unload(BoolObjectClosure* is_alive, oop* root, bool unloading_occurred) { |
| 0 | 1762 assert(root != NULL, "just checking"); |
| 1763 oop obj = *root; | |
| 1764 if (obj == NULL || is_alive->do_object_b(obj)) { | |
| 1765 return false; | |
| 1766 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1767 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1768 // If ScavengeRootsInCode is true, an nmethod might be unloaded |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1769 // simply because one of its constant oops has gone dead. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1770 // No actual classes need to be unloaded in order for this to occur. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
1771 assert(unloading_occurred || ScavengeRootsInCode, "Inconsistency in unloading"); |
| 0 | 1772 make_unloaded(is_alive, obj); |
| 1773 return true; | |
| 1774 } | |
| 1775 | |
| 1776 // ------------------------------------------------------------------ | |
| 1777 // post_compiled_method_load_event | |
| 1778 // new method for install_code() path | |
| 1779 // Transfer information from compilation to jvmti | |
| 1780 void nmethod::post_compiled_method_load_event() { | |
| 1781 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1782 Method* moop = method(); |
| 4006 | 1783 #ifndef USDT2 |
| 0 | 1784 HS_DTRACE_PROBE8(hotspot, compiled__method__load, |
| 1785 moop->klass_name()->bytes(), | |
| 1786 moop->klass_name()->utf8_length(), | |
| 1787 moop->name()->bytes(), | |
| 1788 moop->name()->utf8_length(), | |
| 1789 moop->signature()->bytes(), | |
| 1790 moop->signature()->utf8_length(), | |
| 1748 | 1791 insts_begin(), insts_size()); |
| 4006 | 1792 #else /* USDT2 */ |
| 1793 HOTSPOT_COMPILED_METHOD_LOAD( | |
| 1794 (char *) moop->klass_name()->bytes(), | |
| 1795 moop->klass_name()->utf8_length(), | |
| 1796 (char *) moop->name()->bytes(), | |
| 1797 moop->name()->utf8_length(), | |
| 1798 (char *) moop->signature()->bytes(), | |
| 1799 moop->signature()->utf8_length(), | |
| 1800 insts_begin(), insts_size()); | |
| 1801 #endif /* USDT2 */ | |
| 0 | 1802 |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1803 if (JvmtiExport::should_post_compiled_method_load() || |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1804 JvmtiExport::should_post_compiled_method_unload()) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1805 get_and_cache_jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1806 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1807 |
| 0 | 1808 if (JvmtiExport::should_post_compiled_method_load()) { |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1809 // Let the Service thread (which is a real Java thread) post the event |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1810 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1811 JvmtiDeferredEventQueue::enqueue( |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1812 JvmtiDeferredEvent::compiled_method_load_event(this)); |
| 0 | 1813 } |
| 1814 } | |
| 1815 | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1816 jmethodID nmethod::get_and_cache_jmethod_id() { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1817 if (_jmethod_id == NULL) { |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1818 // Cache the jmethod_id since it can no longer be looked up once the |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1819 // method itself has been marked for unloading. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1820 _jmethod_id = method()->jmethod_id(); |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1821 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1822 return _jmethod_id; |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1823 } |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1824 |
| 0 | 1825 void nmethod::post_compiled_method_unload() { |
|
1577
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1826 if (unload_reported()) { |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1827 // During unloading we transition to unloaded and then to zombie |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1828 // and the unloading is reported during the first transition. |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1829 return; |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1830 } |
|
852d0157c696
6956931: assert(SafepointSynchronize::is_at_safepoint()) failed: must be executed at a safepoint
never
parents:
1563
diff
changeset
|
1831 |
| 0 | 1832 assert(_method != NULL && !is_unloaded(), "just checking"); |
| 1833 DTRACE_METHOD_UNLOAD_PROBE(method()); | |
| 1834 | |
| 1835 // If a JVMTI agent has enabled the CompiledMethodUnload event then | |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1836 // post the event. Sometime later this nmethod will be made a zombie |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1837 // by the sweeper but the Method* will not be valid at that point. |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1838 // If the _jmethod_id is null then no load event was ever requested |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1839 // so don't bother posting the unload. The main reason for this is |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
1840 // that the jmethodID is a weak reference to the Method* so if |
|
1616
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1841 // it's being unloaded there's no way to look it up since the weak |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1842 // ref will have been cleared. |
|
38e8278318ca
6656830: assert((*p)->is_oop(),"expected an oop while scanning weak refs")
never
parents:
1602
diff
changeset
|
1843 if (_jmethod_id != NULL && JvmtiExport::should_post_compiled_method_unload()) { |
| 0 | 1844 assert(!unload_reported(), "already unloaded"); |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1845 JvmtiDeferredEvent event = |
|
2342
46a56fac55c7
7024970: 2/3 assert(ServiceThread::is_service_thread(Thread::current())) failed: Service thread must post enqueue
dcubed
parents:
2321
diff
changeset
|
1846 JvmtiDeferredEvent::compiled_method_unload_event(this, |
|
2195
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
diff
changeset
|
1847 _jmethod_id, insts_begin()); |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
parents:
2177
diff
changeset
|
1848 if (SafepointSynchronize::is_at_safepoint()) { |
|
bf8517f4e4d0
6766644: Redefinition of compiled method fails with assertion "Can not load classes with the Compiler thread"
kamg
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2177
diff
changeset
|
1849 // Don't want to take the queueing lock. Add it as pending and |
|
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1850 // it will get enqueued later. |
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1851 JvmtiDeferredEventQueue::add_pending_event(event); |
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1852 } else { |
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1853 MutexLockerEx ml(Service_lock, Mutex::_no_safepoint_check_flag); |
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1854 JvmtiDeferredEventQueue::enqueue(event); |
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1855 } |
| 0 | 1856 } |
| 1857 | |
| 1858 // The JVMTI CompiledMethodUnload event can be enabled or disabled at | |
| 1859 // any time. As the nmethod is being unloaded now we mark it has | |
| 1860 // having the unload event reported - this will ensure that we don't | |
| 1861 // attempt to report the event in the unlikely scenario where the | |
| 1862 // event is enabled at the time the nmethod is made a zombie. | |
| 1863 set_unload_reported(); | |
| 1864 } | |
| 1865 | |
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1866 void static clean_ic_if_metadata_is_dead(CompiledIC *ic, BoolObjectClosure *is_alive, bool mark_on_stack) { |
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1867 if (ic->is_icholder_call()) { |
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1868 // The only exception is compiledICHolder oops which may |
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1869 // yet be marked below. (We check this further below). |
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1870 CompiledICHolder* cichk_oop = ic->cached_icholder(); |
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1871 |
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1872 if (mark_on_stack) { |
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1873 Metadata::mark_on_stack(cichk_oop->holder_method()); |
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1874 Metadata::mark_on_stack(cichk_oop->holder_klass()); |
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1875 } |
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1876 |
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1877 if (cichk_oop->holder_method()->method_holder()->is_loader_alive(is_alive) && |
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1878 cichk_oop->holder_klass()->is_loader_alive(is_alive)) { |
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1879 return; |
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1880 } |
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1881 } else { |
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1882 Metadata* ic_oop = ic->cached_metadata(); |
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1883 if (ic_oop != NULL) { |
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1884 if (mark_on_stack) { |
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1885 Metadata::mark_on_stack(ic_oop); |
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1886 } |
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1887 |
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1888 if (ic_oop->is_klass()) { |
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1889 if (((Klass*)ic_oop)->is_loader_alive(is_alive)) { |
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1890 return; |
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1891 } |
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1892 } else if (ic_oop->is_method()) { |
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1893 if (((Method*)ic_oop)->method_holder()->is_loader_alive(is_alive)) { |
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1894 return; |
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1895 } |
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1896 } else { |
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1897 ShouldNotReachHere(); |
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1898 } |
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1899 } |
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1900 } |
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1901 |
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1902 ic->set_to_clean(); |
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1903 } |
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1904 |
| 0 | 1905 // This is called at the end of the strong tracing/marking phase of a |
| 1906 // GC to unload an nmethod if it contains otherwise unreachable | |
| 1907 // oops. | |
| 1908 | |
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1909 void nmethod::do_unloading(BoolObjectClosure* is_alive, bool unloading_occurred) { |
| 0 | 1910 // Make sure the oop's ready to receive visitors |
| 1911 assert(!is_zombie() && !is_unloaded(), | |
| 1912 "should not call follow on zombie or unloaded nmethod"); | |
| 1913 | |
| 1914 // If the method is not entrant then a JMP is plastered over the | |
| 1915 // first few bytes. If an oop in the old code was there, that oop | |
| 1916 // should not get GC'd. Skip the first few bytes of oops on | |
| 1917 // not-entrant methods. | |
| 1918 address low_boundary = verified_entry_point(); | |
| 1919 if (is_not_entrant()) { | |
| 1920 low_boundary += NativeJump::instruction_size; | |
| 1921 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 1922 // (See comment above.) | |
| 1923 } | |
| 1924 | |
| 1925 // The RedefineClasses() API can cause the class unloading invariant | |
| 1926 // to no longer be true. See jvmtiExport.hpp for details. | |
| 1927 // Also, leave a debugging breadcrumb in local flag. | |
| 1928 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); | |
| 1929 if (a_class_was_redefined) { | |
| 1930 // This set of the unloading_occurred flag is done before the | |
| 1931 // call to post_compiled_method_unload() so that the unloading | |
| 1932 // of this nmethod is reported. | |
| 1933 unloading_occurred = true; | |
| 1934 } | |
| 1935 | |
| 1936 // Exception cache | |
| 20269 | 1937 clean_exception_cache(is_alive); |
| 0 | 1938 |
| 1939 // If class unloading occurred we first iterate over all inline caches and | |
| 1940 // clear ICs where the cached oop is referring to an unloaded klass or method. | |
| 1941 // The remaining live cached oops will be traversed in the relocInfo::oop_type | |
| 1942 // iteration below. | |
| 1943 if (unloading_occurred) { | |
| 1944 RelocIterator iter(this, low_boundary); | |
| 1945 while(iter.next()) { | |
| 1946 if (iter.type() == relocInfo::virtual_call_type) { | |
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1947 CompiledIC *ic = CompiledIC_at(&iter); |
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1948 clean_ic_if_metadata_is_dead(ic, is_alive, false); |
| 0 | 1949 } |
| 1950 } | |
| 1951 } | |
| 1952 | |
| 1953 // Compiled code | |
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1954 { |
| 0 | 1955 RelocIterator iter(this, low_boundary); |
| 1956 while (iter.next()) { | |
| 1957 if (iter.type() == relocInfo::oop_type) { | |
| 1958 oop_Relocation* r = iter.oop_reloc(); | |
| 1959 // In this loop, we must only traverse those oops directly embedded in | |
| 1960 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 1961 assert(1 == (r->oop_is_immediate()) + | |
| 1962 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 1963 "oop must be found in exactly one place"); | |
| 1964 if (r->oop_is_immediate() && r->oop_value() != NULL) { | |
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1965 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
| 0 | 1966 return; |
| 1967 } | |
| 1968 } | |
| 1969 } | |
| 1970 } | |
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1971 } |
| 0 | 1972 |
| 1973 | |
| 1974 // Scopes | |
| 1975 for (oop* p = oops_begin(); p < oops_end(); p++) { | |
| 1976 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
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1977 if (can_unload(is_alive, p, unloading_occurred)) { |
| 0 | 1978 return; |
| 1979 } | |
| 1980 } | |
| 1981 | |
| 22298 | 1982 #if INCLUDE_JVMCI |
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1983 // Follow JVMCI method |
| 21143 | 1984 BarrierSet* bs = Universe::heap()->barrier_set(); |
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1985 if (_jvmci_installed_code != NULL) { |
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1986 if (_jvmci_installed_code->is_a(HotSpotNmethod::klass()) && HotSpotNmethod::isDefault(_jvmci_installed_code)) { |
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1987 if (!is_alive->do_object_b(_jvmci_installed_code)) { |
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1988 bs->write_ref_nmethod_pre(&_jvmci_installed_code, this); |
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1989 _jvmci_installed_code = NULL; |
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1990 bs->write_ref_nmethod_post(&_jvmci_installed_code, this); |
| 21143 | 1991 } |
| 1992 } else { | |
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1993 if (can_unload(is_alive, (oop*)&_jvmci_installed_code, unloading_occurred)) { |
| 21143 | 1994 return; |
| 1995 } | |
| 1996 } | |
| 1997 } | |
| 1998 | |
| 1999 if (_speculation_log != NULL) { | |
| 2000 if (!is_alive->do_object_b(_speculation_log)) { | |
| 2001 bs->write_ref_nmethod_pre(&_speculation_log, this); | |
| 2002 _speculation_log = NULL; | |
| 2003 bs->write_ref_nmethod_post(&_speculation_log, this); | |
| 2004 } | |
| 2005 } | |
| 2006 #endif | |
| 2007 | |
| 2008 | |
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2009 // Ensure that all metadata is still alive |
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2010 verify_metadata_loaders(low_boundary, is_alive); |
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2011 } |
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2012 |
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2013 template <class CompiledICorStaticCall> |
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2014 static bool clean_if_nmethod_is_unloaded(CompiledICorStaticCall *ic, address addr, BoolObjectClosure *is_alive, nmethod* from) { |
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2015 // Ok, to lookup references to zombies here |
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2016 CodeBlob *cb = CodeCache::find_blob_unsafe(addr); |
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2017 if (cb != NULL && cb->is_nmethod()) { |
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2018 nmethod* nm = (nmethod*)cb; |
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2019 |
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2020 if (nm->unloading_clock() != nmethod::global_unloading_clock()) { |
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2021 // The nmethod has not been processed yet. |
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2022 return true; |
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2023 } |
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2024 |
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2025 // Clean inline caches pointing to both zombie and not_entrant methods |
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2026 if (!nm->is_in_use() || (nm->method()->code() != nm)) { |
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2027 ic->set_to_clean(); |
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2028 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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2029 } |
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2030 } |
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2031 |
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2032 return false; |
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2033 } |
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2034 |
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2035 static bool clean_if_nmethod_is_unloaded(CompiledIC *ic, BoolObjectClosure *is_alive, nmethod* from) { |
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2036 return clean_if_nmethod_is_unloaded(ic, ic->ic_destination(), is_alive, from); |
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2037 } |
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2038 |
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2039 static bool clean_if_nmethod_is_unloaded(CompiledStaticCall *csc, BoolObjectClosure *is_alive, nmethod* from) { |
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|
2040 return clean_if_nmethod_is_unloaded(csc, csc->destination(), is_alive, from); |
|
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8049421: G1 Class Unloading after completing a concurrent mark cycle
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diff
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|
2041 } |
|
2c6ef90f030a
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stefank
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diff
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|
2042 |
|
20619
b12a2a9b05ca
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|
2043 bool nmethod::unload_if_dead_at(RelocIterator* iter_at_oop, BoolObjectClosure *is_alive, bool unloading_occurred) { |
|
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|
2044 assert(iter_at_oop->type() == relocInfo::oop_type, "Wrong relocation type"); |
|
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|
2045 |
|
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|
2046 oop_Relocation* r = iter_at_oop->oop_reloc(); |
|
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|
2047 // Traverse those oops directly embedded in the code. |
|
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|
2048 // Other oops (oop_index>0) are seen as part of scopes_oops. |
|
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|
2049 assert(1 == (r->oop_is_immediate()) + |
|
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|
2050 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), |
|
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|
2051 "oop must be found in exactly one place"); |
|
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|
2052 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
|
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|
2053 // Unload this nmethod if the oop is dead. |
|
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|
2054 if (can_unload(is_alive, r->oop_addr(), unloading_occurred)) { |
|
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|
2055 return true;; |
|
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|
2056 } |
|
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changeset
|
2057 } |
|
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changeset
|
2058 |
|
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|
2059 return false; |
|
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stefank
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|
2060 } |
|
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stefank
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changeset
|
2061 |
|
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|
2062 void nmethod::mark_metadata_on_stack_at(RelocIterator* iter_at_metadata) { |
|
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|
2063 assert(iter_at_metadata->type() == relocInfo::metadata_type, "Wrong relocation type"); |
|
b12a2a9b05ca
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|
2064 |
|
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|
2065 metadata_Relocation* r = iter_at_metadata->metadata_reloc(); |
|
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|
2066 // In this metadata, we must only follow those metadatas directly embedded in |
|
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|
2067 // the code. Other metadatas (oop_index>0) are seen as part of |
|
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|
2068 // the metadata section below. |
|
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|
2069 assert(1 == (r->metadata_is_immediate()) + |
|
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|
2070 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
|
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|
2071 "metadata must be found in exactly one place"); |
|
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|
2072 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
|
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|
2073 Metadata* md = r->metadata_value(); |
|
b12a2a9b05ca
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|
2074 if (md != _method) Metadata::mark_on_stack(md); |
|
b12a2a9b05ca
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|
2075 } |
|
b12a2a9b05ca
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stefank
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20278
diff
changeset
|
2076 } |
|
b12a2a9b05ca
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stefank
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20278
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changeset
|
2077 |
|
b12a2a9b05ca
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|
2078 void nmethod::mark_metadata_on_stack_non_relocs() { |
|
b12a2a9b05ca
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|
2079 // Visit the metadata section |
|
b12a2a9b05ca
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|
2080 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
|
b12a2a9b05ca
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|
2081 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
|
b12a2a9b05ca
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|
2082 Metadata* md = *p; |
|
b12a2a9b05ca
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|
2083 Metadata::mark_on_stack(md); |
|
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|
2084 } |
|
b12a2a9b05ca
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stefank
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20278
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changeset
|
2085 |
|
b12a2a9b05ca
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|
2086 // Visit metadata not embedded in the other places. |
|
b12a2a9b05ca
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|
2087 if (_method != NULL) Metadata::mark_on_stack(_method); |
|
b12a2a9b05ca
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|
2088 } |
|
b12a2a9b05ca
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stefank
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20278
diff
changeset
|
2089 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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changeset
|
2090 bool nmethod::do_unloading_parallel(BoolObjectClosure* is_alive, bool unloading_occurred) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
2091 ResourceMark rm; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2092 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2093 // Make sure the oop's ready to receive visitors |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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changeset
|
2094 assert(!is_zombie() && !is_unloaded(), |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
2095 "should not call follow on zombie or unloaded nmethod"); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2096 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2097 // 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
|
2098 // 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
|
2099 // 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
|
2100 // not-entrant methods. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2101 address low_boundary = verified_entry_point(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
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|
2102 if (is_not_entrant()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2103 low_boundary += NativeJump::instruction_size; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2104 // %%% 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
|
2105 // (See comment above.) |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2106 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2107 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2108 // The RedefineClasses() API can cause the class unloading invariant |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2109 // to no longer be true. See jvmtiExport.hpp for details. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2110 // Also, leave a debugging breadcrumb in local flag. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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changeset
|
2111 bool a_class_was_redefined = JvmtiExport::has_redefined_a_class(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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changeset
|
2112 if (a_class_was_redefined) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2113 // 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
|
2114 // 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
|
2115 // of this nmethod is reported. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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changeset
|
2116 unloading_occurred = true; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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diff
changeset
|
2117 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2118 |
| 22298 | 2119 #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
|
2120 // Follow JVMCI method |
|
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2121 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
|
2122 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
|
2123 if (!is_alive->do_object_b(_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
|
2124 _jvmci_installed_code = NULL; |
|
20813
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2125 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2126 } else { |
|
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2127 if (can_unload(is_alive, (oop*)&_jvmci_installed_code, unloading_occurred)) { |
|
20813
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2128 return false; |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2129 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2130 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2131 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2132 |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2133 if (_speculation_log != NULL) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2134 if (!is_alive->do_object_b(_speculation_log)) { |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2135 _speculation_log = NULL; |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2136 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2137 } |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2138 #endif |
|
eb21f2944d7d
Process Graal oops in nmethod::do_unloading_parallel
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
20804
diff
changeset
|
2139 |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
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diff
changeset
|
2140 // 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
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diff
changeset
|
2141 // 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
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changeset
|
2142 // 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
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diff
changeset
|
2143 bool mark_metadata_on_stack = a_class_was_redefined; |
|
b12a2a9b05ca
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stefank
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diff
changeset
|
2144 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2145 // Exception cache |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2146 clean_exception_cache(is_alive); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
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20277
diff
changeset
|
2147 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2148 bool is_unloaded = false; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2149 bool postponed = false; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2150 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2151 RelocIterator iter(this, low_boundary); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2152 while(iter.next()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2153 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2154 switch (iter.type()) { |
|
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 case relocInfo::virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2157 if (unloading_occurred) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2158 // 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
|
2159 // 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
|
2160 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
|
2161 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2162 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2163 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
|
2164 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2165 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2166 case relocInfo::opt_virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2167 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
|
2168 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2169 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2170 case relocInfo::static_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2171 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
|
2172 break; |
|
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 case relocInfo::oop_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2175 if (!is_unloaded) { |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2176 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
|
2177 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2178 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2179 |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2180 case relocInfo::metadata_type: |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2181 if (mark_metadata_on_stack) { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2182 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
|
2183 } |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2184 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2185 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2186 |
|
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2187 if (mark_metadata_on_stack) { |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2188 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
|
2189 } |
|
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20278
diff
changeset
|
2190 |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2191 if (is_unloaded) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2192 return postponed; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2193 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2194 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2195 // Scopes |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2196 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
|
2197 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
|
2198 if (can_unload(is_alive, p, unloading_occurred)) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2199 is_unloaded = true; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2200 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2201 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2202 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2203 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2204 if (is_unloaded) { |
|
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 |
| 22298 | 2208 #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
|
2209 // Follow JVMCI method |
| 21143 | 2210 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
|
2211 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
|
2212 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
|
2213 if (!is_alive->do_object_b(_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
|
2214 bs->write_ref_nmethod_pre(&_jvmci_installed_code, this); |
|
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2215 _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
|
2216 bs->write_ref_nmethod_post(&_jvmci_installed_code, this); |
| 21143 | 2217 } |
| 2218 } else { | |
|
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
2219 if (can_unload(is_alive, (oop*)&_jvmci_installed_code, unloading_occurred)) { |
| 21143 | 2220 is_unloaded = true; |
| 2221 } | |
| 2222 } | |
| 2223 } | |
| 2224 | |
| 2225 if (_speculation_log != NULL) { | |
| 2226 if (!is_alive->do_object_b(_speculation_log)) { | |
| 2227 bs->write_ref_nmethod_pre(&_speculation_log, this); | |
| 2228 _speculation_log = NULL; | |
| 2229 bs->write_ref_nmethod_post(&_speculation_log, this); | |
| 2230 } | |
| 2231 } | |
| 2232 #endif | |
| 2233 | |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2234 // Ensure that all metadata is still alive |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2235 verify_metadata_loaders(low_boundary, is_alive); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2236 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2237 return postponed; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2238 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2239 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2240 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
|
2241 ResourceMark rm; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2242 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2243 // 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
|
2244 assert(!is_zombie(), |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2245 "should not call follow on zombie nmethod"); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2246 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2247 // 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
|
2248 // 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
|
2249 // 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
|
2250 // not-entrant methods. |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2251 address low_boundary = verified_entry_point(); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2252 if (is_not_entrant()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2253 low_boundary += NativeJump::instruction_size; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2254 // %%% 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
|
2255 // (See comment above.) |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2256 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2257 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2258 RelocIterator iter(this, low_boundary); |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2259 while(iter.next()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2260 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2261 switch (iter.type()) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2262 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2263 case relocInfo::virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2264 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
|
2265 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2266 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2267 case relocInfo::opt_virtual_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2268 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
|
2269 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2270 |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2271 case relocInfo::static_call_type: |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2272 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
|
2273 break; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2274 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2275 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2276 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2277 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2278 #ifdef ASSERT |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2279 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2280 class CheckClass : AllStatic { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2281 static BoolObjectClosure* _is_alive; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2282 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
2283 // Check class_loader is alive for this bit of metadata. |
|
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2284 static void check_class(Metadata* md) { |
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2285 Klass* klass = NULL; |
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2286 if (md->is_klass()) { |
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2287 klass = ((Klass*)md); |
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2288 } else if (md->is_method()) { |
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2289 klass = ((Method*)md)->method_holder(); |
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2290 } else if (md->is_methodData()) { |
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2291 klass = ((MethodData*)md)->method()->method_holder(); |
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2292 } else { |
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2293 md->print(); |
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2294 ShouldNotReachHere(); |
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2295 } |
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2296 assert(klass->is_loader_alive(_is_alive), "must be alive"); |
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2297 } |
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2298 public: |
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2299 static void do_check_class(BoolObjectClosure* is_alive, nmethod* nm) { |
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2300 assert(SafepointSynchronize::is_at_safepoint(), "this is only ok at safepoint"); |
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2301 _is_alive = is_alive; |
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2302 nm->metadata_do(check_class); |
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2303 } |
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2304 }; |
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2305 |
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2306 // This is called during a safepoint so can use static data |
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2307 BoolObjectClosure* CheckClass::_is_alive = NULL; |
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2308 #endif // ASSERT |
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2309 |
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2310 |
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2311 // Processing of oop references should have been sufficient to keep |
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2312 // all strong references alive. Any weak references should have been |
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2313 // cleared as well. Visit all the metadata and ensure that it's |
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2314 // really alive. |
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2315 void nmethod::verify_metadata_loaders(address low_boundary, BoolObjectClosure* is_alive) { |
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2316 #ifdef ASSERT |
| 0 | 2317 RelocIterator iter(this, low_boundary); |
| 2318 while (iter.next()) { | |
|
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2319 // static_stub_Relocations may have dangling references to |
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2320 // Method*s so trim them out here. Otherwise it looks like |
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2321 // compiled code is maintaining a link to dead metadata. |
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2322 address static_call_addr = NULL; |
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2323 if (iter.type() == relocInfo::opt_virtual_call_type) { |
|
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2324 CompiledIC* cic = CompiledIC_at(&iter); |
|
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2325 if (!cic->is_call_to_interpreted()) { |
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2326 static_call_addr = iter.addr(); |
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2327 } |
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2328 } else if (iter.type() == relocInfo::static_call_type) { |
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2329 CompiledStaticCall* csc = compiledStaticCall_at(iter.reloc()); |
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2330 if (!csc->is_call_to_interpreted()) { |
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2331 static_call_addr = iter.addr(); |
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2332 } |
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2333 } |
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2334 if (static_call_addr != NULL) { |
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2335 RelocIterator sciter(this, low_boundary); |
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2336 while (sciter.next()) { |
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2337 if (sciter.type() == relocInfo::static_stub_type && |
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2338 sciter.static_stub_reloc()->static_call() == static_call_addr) { |
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2339 sciter.static_stub_reloc()->clear_inline_cache(); |
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2340 } |
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2341 } |
| 0 | 2342 } |
| 2343 } | |
|
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2344 // Check that the metadata embedded in the nmethod is alive |
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2345 CheckClass::do_check_class(is_alive, this); |
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2346 #endif |
| 0 | 2347 } |
| 2348 | |
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2349 |
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2350 // Iterate over metadata calling this function. Used by RedefineClasses |
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2351 void nmethod::metadata_do(void f(Metadata*)) { |
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2352 address low_boundary = verified_entry_point(); |
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2353 if (is_not_entrant()) { |
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2354 low_boundary += NativeJump::instruction_size; |
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2355 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. |
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2356 // (See comment above.) |
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2357 } |
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2358 { |
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2359 // Visit all immediate references that are embedded in the instruction stream. |
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2360 RelocIterator iter(this, low_boundary); |
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2361 while (iter.next()) { |
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2362 if (iter.type() == relocInfo::metadata_type ) { |
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2363 metadata_Relocation* r = iter.metadata_reloc(); |
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2364 // In this metadata, we must only follow those metadatas directly embedded in |
|
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2365 // the code. Other metadatas (oop_index>0) are seen as part of |
|
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2366 // the metadata section below. |
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2367 assert(1 == (r->metadata_is_immediate()) + |
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2368 (r->metadata_addr() >= metadata_begin() && r->metadata_addr() < metadata_end()), |
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2369 "metadata must be found in exactly one place"); |
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2370 if (r->metadata_is_immediate() && r->metadata_value() != NULL) { |
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2371 Metadata* md = r->metadata_value(); |
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2372 f(md); |
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2373 } |
|
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2374 } else if (iter.type() == relocInfo::virtual_call_type) { |
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2375 // Check compiledIC holders associated with this nmethod |
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2376 CompiledIC *ic = CompiledIC_at(&iter); |
|
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2377 if (ic->is_icholder_call()) { |
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2378 CompiledICHolder* cichk = ic->cached_icholder(); |
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2379 f(cichk->holder_method()); |
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2380 f(cichk->holder_klass()); |
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2381 } else { |
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2382 Metadata* ic_oop = ic->cached_metadata(); |
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2383 if (ic_oop != NULL) { |
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2384 f(ic_oop); |
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2385 } |
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2386 } |
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2387 } |
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2388 } |
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2389 } |
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2390 |
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2391 // Visit the metadata section |
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2392 for (Metadata** p = metadata_begin(); p < metadata_end(); p++) { |
|
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2393 if (*p == Universe::non_oop_word() || *p == NULL) continue; // skip non-oops |
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2394 Metadata* md = *p; |
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2395 f(md); |
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2396 } |
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2397 |
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2398 // Visit metadata not embedded in the other places. |
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2399 if (_method != NULL) f(_method); |
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2400 } |
|
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2401 |
| 12080 | 2402 void nmethod::oops_do(OopClosure* f, bool allow_zombie) { |
| 0 | 2403 // make sure the oops ready to receive visitors |
| 12080 | 2404 assert(allow_zombie || !is_zombie(), "should not call follow on zombie nmethod"); |
| 2405 assert(!is_unloaded(), "should not call follow on unloaded nmethod"); | |
| 0 | 2406 |
| 2407 // If the method is not entrant or zombie then a JMP is plastered over the | |
| 2408 // first few bytes. If an oop in the old code was there, that oop | |
| 2409 // should not get GC'd. Skip the first few bytes of oops on | |
| 2410 // not-entrant methods. | |
| 2411 address low_boundary = verified_entry_point(); | |
| 2412 if (is_not_entrant()) { | |
| 2413 low_boundary += NativeJump::instruction_size; | |
| 2414 // %%% Note: On SPARC we patch only a 4-byte trap, not a full NativeJump. | |
| 2415 // (See comment above.) | |
| 2416 } | |
| 2417 | |
| 22298 | 2418 #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
|
2419 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
|
2420 f->do_oop((oop*) &_jvmci_installed_code); |
| 9707 | 2421 } |
|
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
|
2422 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>
parents:
13451
diff
changeset
|
2423 f->do_oop((oop*) &_speculation_log); |
| 9707 | 2424 } |
| 2425 #endif | |
| 2426 | |
| 0 | 2427 RelocIterator iter(this, low_boundary); |
| 941 | 2428 |
| 0 | 2429 while (iter.next()) { |
| 2430 if (iter.type() == relocInfo::oop_type ) { | |
| 2431 oop_Relocation* r = iter.oop_reloc(); | |
| 2432 // In this loop, we must only follow those oops directly embedded in | |
| 2433 // the code. Other oops (oop_index>0) are seen as part of scopes_oops. | |
| 941 | 2434 assert(1 == (r->oop_is_immediate()) + |
| 2435 (r->oop_addr() >= oops_begin() && r->oop_addr() < oops_end()), | |
| 2436 "oop must be found in exactly one place"); | |
| 0 | 2437 if (r->oop_is_immediate() && r->oop_value() != NULL) { |
| 2438 f->do_oop(r->oop_addr()); | |
| 2439 } | |
| 2440 } | |
| 2441 } | |
| 2442 | |
| 2443 // Scopes | |
|
989
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changeset
|
2444 // This includes oop constants not inlined in the code stream. |
| 0 | 2445 for (oop* p = oops_begin(); p < oops_end(); p++) { |
| 2446 if (*p == Universe::non_oop_word()) continue; // skip non-oops | |
| 2447 f->do_oop(p); | |
| 2448 } | |
| 2449 } | |
| 2450 | |
|
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148e5441d916
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|
2451 #define NMETHOD_SENTINEL ((nmethod*)badAddress) |
|
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|
2452 |
|
148e5441d916
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|
2453 nmethod* volatile nmethod::_oops_do_mark_nmethods; |
|
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|
2454 |
|
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|
2455 // An nmethod is "marked" if its _mark_link is set non-null. |
|
148e5441d916
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|
2456 // Even if it is the end of the linked list, it will have a non-null link value, |
|
148e5441d916
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|
2457 // as long as it is on the list. |
|
148e5441d916
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|
2458 // This code must be MP safe, because it is used from parallel GC passes. |
|
148e5441d916
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jrose
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changeset
|
2459 bool nmethod::test_set_oops_do_mark() { |
|
148e5441d916
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changeset
|
2460 assert(nmethod::oops_do_marking_is_active(), "oops_do_marking_prologue must be called"); |
|
148e5441d916
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|
2461 nmethod* observed_mark_link = _oops_do_mark_link; |
|
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diff
changeset
|
2462 if (observed_mark_link == NULL) { |
|
148e5441d916
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|
2463 // Claim this nmethod for this thread to mark. |
|
148e5441d916
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changeset
|
2464 observed_mark_link = (nmethod*) |
|
148e5441d916
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jrose
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|
2465 Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_link, NULL); |
|
148e5441d916
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jrose
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|
2466 if (observed_mark_link == NULL) { |
|
148e5441d916
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jrose
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931
diff
changeset
|
2467 |
|
148e5441d916
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diff
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|
2468 // Atomically append this nmethod (now claimed) to the head of the list: |
|
148e5441d916
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diff
changeset
|
2469 nmethod* observed_mark_nmethods = _oops_do_mark_nmethods; |
|
148e5441d916
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jrose
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diff
changeset
|
2470 for (;;) { |
|
148e5441d916
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diff
changeset
|
2471 nmethod* required_mark_nmethods = observed_mark_nmethods; |
|
148e5441d916
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parents:
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diff
changeset
|
2472 _oops_do_mark_link = required_mark_nmethods; |
|
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jrose
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diff
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|
2473 observed_mark_nmethods = (nmethod*) |
|
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jrose
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|
2474 Atomic::cmpxchg_ptr(this, &_oops_do_mark_nmethods, required_mark_nmethods); |
|
148e5441d916
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diff
changeset
|
2475 if (observed_mark_nmethods == required_mark_nmethods) |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2476 break; |
|
148e5441d916
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jrose
parents:
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diff
changeset
|
2477 } |
|
148e5441d916
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jrose
parents:
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diff
changeset
|
2478 // 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
|
2479 NOT_PRODUCT(if (TraceScavenge) print_on(tty, "oops_do, mark")); |
|
989
148e5441d916
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jrose
parents:
931
diff
changeset
|
2480 return false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2481 } |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2482 } |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2483 // On fall through, another racing thread marked this nmethod before we did. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2484 return true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2485 } |
|
148e5441d916
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jrose
parents:
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diff
changeset
|
2486 |
|
148e5441d916
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jrose
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diff
changeset
|
2487 void nmethod::oops_do_marking_prologue() { |
|
148e5441d916
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jrose
parents:
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diff
changeset
|
2488 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("[oops_do_marking_prologue")); |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2489 assert(_oops_do_mark_nmethods == NULL, "must not call oops_do_marking_prologue twice in a row"); |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2490 // We use cmpxchg_ptr instead of regular assignment here because the user |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2491 // may fork a bunch of threads, and we need them all to see the same state. |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2492 void* observed = Atomic::cmpxchg_ptr(NMETHOD_SENTINEL, &_oops_do_mark_nmethods, NULL); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2493 guarantee(observed == NULL, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2494 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2495 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2496 void nmethod::oops_do_marking_epilogue() { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2497 assert(_oops_do_mark_nmethods != NULL, "must not call oops_do_marking_epilogue twice in a row"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2498 nmethod* cur = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2499 while (cur != NMETHOD_SENTINEL) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2500 assert(cur != NULL, "not NULL-terminated"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2501 nmethod* next = cur->_oops_do_mark_link; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2502 cur->_oops_do_mark_link = NULL; |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
2503 cur->verify_oop_relocations(); |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
2504 NOT_PRODUCT(if (TraceScavenge) cur->print_on(tty, "oops_do, unmark")); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2505 cur = next; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2506 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2507 void* required = _oops_do_mark_nmethods; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2508 void* observed = Atomic::cmpxchg_ptr(NULL, &_oops_do_mark_nmethods, required); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2509 guarantee(observed == required, "no races in this sequential code"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2510 NOT_PRODUCT(if (TraceScavenge) tty->print_cr("oops_do_marking_epilogue]")); |
|
148e5441d916
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jrose
parents:
931
diff
changeset
|
2511 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2512 |
|
148e5441d916
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jrose
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931
diff
changeset
|
2513 class DetectScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2514 bool _detected_scavenge_root; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2515 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2516 DetectScavengeRoot() : _detected_scavenge_root(false) |
|
148e5441d916
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jrose
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931
diff
changeset
|
2517 { NOT_PRODUCT(_print_nm = NULL); } |
|
148e5441d916
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931
diff
changeset
|
2518 bool detected_scavenge_root() { return _detected_scavenge_root; } |
|
148e5441d916
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jrose
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931
diff
changeset
|
2519 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
2520 if ((*p) != NULL && (*p)->is_scavengable()) { |
|
148e5441d916
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jrose
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931
diff
changeset
|
2521 NOT_PRODUCT(maybe_print(p)); |
|
148e5441d916
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jrose
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931
diff
changeset
|
2522 _detected_scavenge_root = true; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2523 } |
|
148e5441d916
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jrose
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diff
changeset
|
2524 } |
|
148e5441d916
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jrose
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changeset
|
2525 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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|
2526 |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
2527 #ifndef PRODUCT |
|
148e5441d916
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931
diff
changeset
|
2528 nmethod* _print_nm; |
|
148e5441d916
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jrose
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931
diff
changeset
|
2529 void maybe_print(oop* p) { |
|
148e5441d916
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diff
changeset
|
2530 if (_print_nm == NULL) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2531 if (!_detected_scavenge_root) _print_nm->print_on(tty, "new scavenge root"); |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
2532 tty->print_cr(""PTR_FORMAT"[offset=%d] detected scavengable oop "PTR_FORMAT" (found at "PTR_FORMAT")", |
|
989
148e5441d916
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931
diff
changeset
|
2533 _print_nm, (int)((intptr_t)p - (intptr_t)_print_nm), |
|
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents:
12175
diff
changeset
|
2534 (void *)(*p), (intptr_t)p); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
2535 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
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931
diff
changeset
|
2536 } |
|
148e5441d916
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diff
changeset
|
2537 #endif //PRODUCT |
|
148e5441d916
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931
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changeset
|
2538 }; |
|
148e5441d916
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jrose
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931
diff
changeset
|
2539 |
|
148e5441d916
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changeset
|
2540 bool nmethod::detect_scavenge_root_oops() { |
|
148e5441d916
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|
2541 DetectScavengeRoot detect_scavenge_root; |
|
148e5441d916
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changeset
|
2542 NOT_PRODUCT(if (TraceScavenge) detect_scavenge_root._print_nm = this); |
|
148e5441d916
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|
2543 oops_do(&detect_scavenge_root); |
|
148e5441d916
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changeset
|
2544 return detect_scavenge_root.detected_scavenge_root(); |
|
148e5441d916
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|
2545 } |
|
148e5441d916
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|
2546 |
| 0 | 2547 // Method that knows how to preserve outgoing arguments at call. This method must be |
| 2548 // called with a frame corresponding to a Java invoke | |
| 2549 void nmethod::preserve_callee_argument_oops(frame fr, const RegisterMap *reg_map, OopClosure* f) { | |
| 1692 | 2550 #ifndef SHARK |
| 0 | 2551 if (!method()->is_native()) { |
| 2552 SimpleScopeDesc ssd(this, fr.pc()); | |
| 2142 | 2553 Bytecode_invoke call(ssd.method(), ssd.bci()); |
| 10390 | 2554 bool has_receiver = call.has_receiver(); |
| 2555 bool has_appendix = call.has_appendix(); | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
2556 Symbol* signature = call.signature(); |
| 10390 | 2557 fr.oops_compiled_arguments_do(signature, has_receiver, has_appendix, reg_map, f); |
| 0 | 2558 } |
| 1692 | 2559 #endif // !SHARK |
| 0 | 2560 } |
| 2561 | |
| 2562 | |
| 2563 oop nmethod::embeddedOop_at(u_char* p) { | |
|
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|
2564 RelocIterator iter(this, p, p + 1); |
| 0 | 2565 while (iter.next()) |
| 2566 if (iter.type() == relocInfo::oop_type) { | |
| 2567 return iter.oop_reloc()->oop_value(); | |
| 2568 } | |
| 2569 return NULL; | |
| 2570 } | |
| 2571 | |
| 2572 | |
| 2573 inline bool includes(void* p, void* from, void* to) { | |
| 2574 return from <= p && p < to; | |
| 2575 } | |
| 2576 | |
| 2577 | |
| 2578 void nmethod::copy_scopes_pcs(PcDesc* pcs, int count) { | |
| 2579 assert(count >= 2, "must be sentinel values, at least"); | |
| 2580 | |
| 2581 #ifdef ASSERT | |
| 2582 // must be sorted and unique; we do a binary search in find_pc_desc() | |
| 2583 int prev_offset = pcs[0].pc_offset(); | |
| 2584 assert(prev_offset == PcDesc::lower_offset_limit, | |
| 2585 "must start with a sentinel"); | |
| 2586 for (int i = 1; i < count; i++) { | |
| 2587 int this_offset = pcs[i].pc_offset(); | |
| 2588 assert(this_offset > prev_offset, "offsets must be sorted"); | |
| 2589 prev_offset = this_offset; | |
| 2590 } | |
| 2591 assert(prev_offset == PcDesc::upper_offset_limit, | |
| 2592 "must end with a sentinel"); | |
| 2593 #endif //ASSERT | |
| 2594 | |
|
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|
2595 // Search for MethodHandle invokes and tag the nmethod. |
|
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|
2596 for (int i = 0; i < count; i++) { |
|
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|
2597 if (pcs[i].is_method_handle_invoke()) { |
|
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|
2598 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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|
2599 break; |
|
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|
2600 } |
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|
2601 } |
|
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|
2602 assert(has_method_handle_invokes() == (_deoptimize_mh_offset != -1), "must have deopt mh handler"); |
|
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|
2603 |
| 0 | 2604 int size = count * sizeof(PcDesc); |
| 2605 assert(scopes_pcs_size() >= size, "oob"); | |
| 2606 memcpy(scopes_pcs_begin(), pcs, size); | |
| 2607 | |
| 2608 // Adjust the final sentinel downward. | |
| 2609 PcDesc* last_pc = &scopes_pcs_begin()[count-1]; | |
| 2610 assert(last_pc->pc_offset() == PcDesc::upper_offset_limit, "sanity"); | |
| 1748 | 2611 last_pc->set_pc_offset(content_size() + 1); |
| 0 | 2612 for (; last_pc + 1 < scopes_pcs_end(); last_pc += 1) { |
| 2613 // Fill any rounding gaps with copies of the last record. | |
| 2614 last_pc[1] = last_pc[0]; | |
| 2615 } | |
| 2616 // The following assert could fail if sizeof(PcDesc) is not | |
| 2617 // an integral multiple of oopSize (the rounding term). | |
| 2618 // If it fails, change the logic to always allocate a multiple | |
| 2619 // of sizeof(PcDesc), and fill unused words with copies of *last_pc. | |
| 2620 assert(last_pc + 1 == scopes_pcs_end(), "must match exactly"); | |
| 2621 } | |
| 2622 | |
| 2623 void nmethod::copy_scopes_data(u_char* buffer, int size) { | |
| 2624 assert(scopes_data_size() >= size, "oob"); | |
| 2625 memcpy(scopes_data_begin(), buffer, size); | |
| 2626 } | |
| 2627 | |
|
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2628 // When using JVMCI the address might be off by the size of a call instruction. |
|
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|
2629 bool nmethod::is_deopt_entry(address pc) { |
|
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|
2630 return pc == deopt_handler_begin() |
| 22298 | 2631 #if INCLUDE_JVMCI |
|
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|
2632 || pc == (deopt_handler_begin() + NativeCall::instruction_size) |
| 22298 | 2633 #endif |
|
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|
2634 ; |
|
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|
2635 } |
| 0 | 2636 |
| 2637 #ifdef ASSERT | |
| 2638 static PcDesc* linear_search(nmethod* nm, int pc_offset, bool approximate) { | |
| 2639 PcDesc* lower = nm->scopes_pcs_begin(); | |
| 2640 PcDesc* upper = nm->scopes_pcs_end(); | |
| 2641 lower += 1; // exclude initial sentinel | |
| 2642 PcDesc* res = NULL; | |
| 2643 for (PcDesc* p = lower; p < upper; p++) { | |
|
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|
2644 NOT_PRODUCT(--pc_nmethod_stats.pc_desc_tests); // don't count this call to match_desc |
| 0 | 2645 if (match_desc(p, pc_offset, approximate)) { |
| 2646 if (res == NULL) | |
| 2647 res = p; | |
| 2648 else | |
| 2649 res = (PcDesc*) badAddress; | |
| 2650 } | |
| 2651 } | |
| 2652 return res; | |
| 2653 } | |
| 2654 #endif | |
| 2655 | |
| 2656 | |
| 2657 // Finds a PcDesc with real-pc equal to "pc" | |
| 2658 PcDesc* nmethod::find_pc_desc_internal(address pc, bool approximate) { | |
| 1748 | 2659 address base_address = code_begin(); |
| 0 | 2660 if ((pc < base_address) || |
| 2661 (pc - base_address) >= (ptrdiff_t) PcDesc::upper_offset_limit) { | |
| 2662 return NULL; // PC is wildly out of range | |
| 2663 } | |
| 2664 int pc_offset = (int) (pc - base_address); | |
| 2665 | |
| 2666 // Check the PcDesc cache if it contains the desired PcDesc | |
| 2667 // (This as an almost 100% hit rate.) | |
| 2668 PcDesc* res = _pc_desc_cache.find_pc_desc(pc_offset, approximate); | |
| 2669 if (res != NULL) { | |
| 2670 assert(res == linear_search(this, pc_offset, approximate), "cache ok"); | |
| 2671 return res; | |
| 2672 } | |
| 2673 | |
| 2674 // Fallback algorithm: quasi-linear search for the PcDesc | |
| 2675 // Find the last pc_offset less than the given offset. | |
| 2676 // The successor must be the required match, if there is a match at all. | |
| 2677 // (Use a fixed radix to avoid expensive affine pointer arithmetic.) | |
| 2678 PcDesc* lower = scopes_pcs_begin(); | |
| 2679 PcDesc* upper = scopes_pcs_end(); | |
| 2680 upper -= 1; // exclude final sentinel | |
| 2681 if (lower >= upper) return NULL; // native method; no PcDescs at all | |
| 2682 | |
| 2683 #define assert_LU_OK \ | |
| 2684 /* invariant on lower..upper during the following search: */ \ | |
| 2685 assert(lower->pc_offset() < pc_offset, "sanity"); \ | |
| 2686 assert(upper->pc_offset() >= pc_offset, "sanity") | |
| 2687 assert_LU_OK; | |
| 2688 | |
| 2689 // Use the last successful return as a split point. | |
| 2690 PcDesc* mid = _pc_desc_cache.last_pc_desc(); | |
|
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|
2691 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2692 if (mid->pc_offset() < pc_offset) { |
| 2693 lower = mid; | |
| 2694 } else { | |
| 2695 upper = mid; | |
| 2696 } | |
| 2697 | |
| 2698 // Take giant steps at first (4096, then 256, then 16, then 1) | |
| 2699 const int LOG2_RADIX = 4 /*smaller steps in debug mode:*/ debug_only(-1); | |
| 2700 const int RADIX = (1 << LOG2_RADIX); | |
| 2701 for (int step = (1 << (LOG2_RADIX*3)); step > 1; step >>= LOG2_RADIX) { | |
| 2702 while ((mid = lower + step) < upper) { | |
| 2703 assert_LU_OK; | |
|
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|
2704 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2705 if (mid->pc_offset() < pc_offset) { |
| 2706 lower = mid; | |
| 2707 } else { | |
| 2708 upper = mid; | |
| 2709 break; | |
| 2710 } | |
| 2711 } | |
| 2712 assert_LU_OK; | |
| 2713 } | |
| 2714 | |
| 2715 // Sneak up on the value with a linear search of length ~16. | |
| 2716 while (true) { | |
| 2717 assert_LU_OK; | |
| 2718 mid = lower + 1; | |
|
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|
2719 NOT_PRODUCT(++pc_nmethod_stats.pc_desc_searches); |
| 0 | 2720 if (mid->pc_offset() < pc_offset) { |
| 2721 lower = mid; | |
| 2722 } else { | |
| 2723 upper = mid; | |
| 2724 break; | |
| 2725 } | |
| 2726 } | |
| 2727 #undef assert_LU_OK | |
| 2728 | |
| 2729 if (match_desc(upper, pc_offset, approximate)) { | |
| 2730 assert(upper == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2731 _pc_desc_cache.add_pc_desc(upper); | |
| 2732 return upper; | |
| 2733 } else { | |
| 2734 assert(NULL == linear_search(this, pc_offset, approximate), "search ok"); | |
| 2735 return NULL; | |
| 2736 } | |
| 2737 } | |
| 2738 | |
| 2739 | |
| 2740 bool nmethod::check_all_dependencies() { | |
| 2741 bool found_check = false; | |
| 2742 // wholesale check of all dependencies | |
| 2743 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2744 if (deps.check_dependency() != NULL) { | |
| 2745 found_check = true; | |
| 2746 NOT_DEBUG(break); | |
| 2747 } | |
| 2748 } | |
| 2749 return found_check; // tell caller if we found anything | |
| 2750 } | |
| 2751 | |
| 2752 bool nmethod::check_dependency_on(DepChange& changes) { | |
| 2753 // What has happened: | |
| 2754 // 1) a new class dependee has been added | |
| 2755 // 2) dependee and all its super classes have been marked | |
| 2756 bool found_check = false; // set true if we are upset | |
| 2757 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 2758 // Evaluate only relevant dependencies. | |
| 2759 if (deps.spot_check_dependency_at(changes) != NULL) { | |
| 2760 found_check = true; | |
| 2761 NOT_DEBUG(break); | |
| 2762 } | |
| 2763 } | |
| 2764 return found_check; | |
| 2765 } | |
| 2766 | |
|
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|
2767 bool nmethod::is_evol_dependent_on(Klass* dependee) { |
|
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|
2768 InstanceKlass *dependee_ik = InstanceKlass::cast(dependee); |
|
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|
2769 Array<Method*>* dependee_methods = dependee_ik->methods(); |
| 0 | 2770 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2771 if (deps.type() == Dependencies::evol_method) { | |
|
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|
2772 Method* method = deps.method_argument(0); |
| 0 | 2773 for (int j = 0; j < dependee_methods->length(); j++) { |
|
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|
2774 if (dependee_methods->at(j) == method) { |
| 0 | 2775 // RC_TRACE macro has an embedded ResourceMark |
| 2776 RC_TRACE(0x01000000, | |
| 2777 ("Found evol dependency of nmethod %s.%s(%s) compile_id=%d on method %s.%s(%s)", | |
|
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|
2778 _method->method_holder()->external_name(), |
| 0 | 2779 _method->name()->as_C_string(), |
| 2780 _method->signature()->as_C_string(), compile_id(), | |
|
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|
2781 method->method_holder()->external_name(), |
| 0 | 2782 method->name()->as_C_string(), |
| 2783 method->signature()->as_C_string())); | |
| 2784 if (TraceDependencies || LogCompilation) | |
| 2785 deps.log_dependency(dependee); | |
| 2786 return true; | |
| 2787 } | |
| 2788 } | |
| 2789 } | |
| 2790 } | |
| 2791 return false; | |
| 2792 } | |
| 2793 | |
| 2794 // Called from mark_for_deoptimization, when dependee is invalidated. | |
|
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|
2795 bool nmethod::is_dependent_on_method(Method* dependee) { |
| 0 | 2796 for (Dependencies::DepStream deps(this); deps.next(); ) { |
| 2797 if (deps.type() != Dependencies::evol_method) | |
| 2798 continue; | |
|
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2799 Method* method = deps.method_argument(0); |
| 0 | 2800 if (method == dependee) return true; |
| 2801 } | |
| 2802 return false; | |
| 2803 } | |
| 2804 | |
| 2805 | |
| 2806 bool nmethod::is_patchable_at(address instr_addr) { | |
| 1748 | 2807 assert(insts_contains(instr_addr), "wrong nmethod used"); |
| 0 | 2808 if (is_zombie()) { |
| 2809 // a zombie may never be patched | |
| 2810 return false; | |
| 2811 } | |
| 2812 return true; | |
| 2813 } | |
| 2814 | |
| 2815 | |
| 2816 address nmethod::continuation_for_implicit_exception(address pc) { | |
| 2817 // Exception happened outside inline-cache check code => we are inside | |
| 2818 // an active nmethod => use cpc to determine a return address | |
| 1748 | 2819 int exception_offset = pc - code_begin(); |
| 0 | 2820 int cont_offset = ImplicitExceptionTable(this).at( exception_offset ); |
| 2821 #ifdef ASSERT | |
| 2822 if (cont_offset == 0) { | |
| 2823 Thread* thread = ThreadLocalStorage::get_thread_slow(); | |
| 2824 ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY | |
| 2825 HandleMark hm(thread); | |
| 2826 ResourceMark rm(thread); | |
| 2827 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2828 assert(cb != NULL && cb == this, ""); | |
| 2829 tty->print_cr("implicit exception happened at " INTPTR_FORMAT, pc); | |
| 2830 print(); | |
| 2831 method()->print_codes(); | |
| 2832 print_code(); | |
| 2833 print_pcs(); | |
| 2834 } | |
| 2835 #endif | |
| 1250 | 2836 if (cont_offset == 0) { |
| 2837 // Let the normal error handling report the exception | |
| 2838 return NULL; | |
| 2839 } | |
| 1748 | 2840 return code_begin() + cont_offset; |
| 0 | 2841 } |
| 2842 | |
| 2843 | |
| 2844 | |
| 2845 void nmethod_init() { | |
| 2846 // make sure you didn't forget to adjust the filler fields | |
| 2847 assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word"); | |
| 2848 } | |
| 2849 | |
| 2850 | |
| 2851 //------------------------------------------------------------------------------------------- | |
| 2852 | |
| 2853 | |
| 2854 // QQQ might we make this work from a frame?? | |
| 2855 nmethodLocker::nmethodLocker(address pc) { | |
| 2856 CodeBlob* cb = CodeCache::find_blob(pc); | |
| 2857 guarantee(cb != NULL && cb->is_nmethod(), "bad pc for a nmethod found"); | |
| 2858 _nm = (nmethod*)cb; | |
| 2859 lock_nmethod(_nm); | |
| 2860 } | |
| 2861 | |
|
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|
2862 // Only JvmtiDeferredEvent::compiled_method_unload_event() |
|
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|
2863 // should pass zombie_ok == true. |
|
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|
2864 void nmethodLocker::lock_nmethod(nmethod* nm, bool zombie_ok) { |
| 0 | 2865 if (nm == NULL) return; |
| 2866 Atomic::inc(&nm->_lock_count); | |
|
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|
2867 guarantee(zombie_ok || !nm->is_zombie(), "cannot lock a zombie method"); |
| 0 | 2868 } |
| 2869 | |
| 2870 void nmethodLocker::unlock_nmethod(nmethod* nm) { | |
| 2871 if (nm == NULL) return; | |
| 2872 Atomic::dec(&nm->_lock_count); | |
| 2873 guarantee(nm->_lock_count >= 0, "unmatched nmethod lock/unlock"); | |
| 2874 } | |
| 2875 | |
| 1204 | 2876 |
| 2877 // ----------------------------------------------------------------------------- | |
| 2878 // nmethod::get_deopt_original_pc | |
| 2879 // | |
| 2880 // Return the original PC for the given PC if: | |
| 2881 // (a) the given PC belongs to a nmethod and | |
| 2882 // (b) it is a deopt PC | |
| 2883 address nmethod::get_deopt_original_pc(const frame* fr) { | |
| 2884 if (fr->cb() == NULL) return NULL; | |
| 2885 | |
| 2886 nmethod* nm = fr->cb()->as_nmethod_or_null(); | |
| 2887 if (nm != NULL && nm->is_deopt_pc(fr->pc())) | |
| 2888 return nm->get_original_pc(fr); | |
| 2889 | |
| 2890 return NULL; | |
| 0 | 2891 } |
| 2892 | |
| 2893 | |
| 2894 // ----------------------------------------------------------------------------- | |
|
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2895 // MethodHandle |
|
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2896 |
|
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|
2897 bool nmethod::is_method_handle_return(address return_pc) { |
|
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2898 if (!has_method_handle_invokes()) return false; |
|
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2899 PcDesc* pd = pc_desc_at(return_pc); |
|
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2900 if (pd == NULL) |
|
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|
2901 return false; |
|
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|
2902 return pd->is_method_handle_invoke(); |
|
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|
2903 } |
|
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|
2904 |
|
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|
2905 |
|
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|
2906 // ----------------------------------------------------------------------------- |
| 0 | 2907 // Verification |
| 2908 | |
|
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|
2909 class VerifyOopsClosure: public OopClosure { |
|
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|
2910 nmethod* _nm; |
|
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|
2911 bool _ok; |
|
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|
2912 public: |
|
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|
2913 VerifyOopsClosure(nmethod* nm) : _nm(nm), _ok(true) { } |
|
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|
2914 bool ok() { return _ok; } |
|
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|
2915 virtual void do_oop(oop* p) { |
|
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6863023: need non-perm oops in code cache for JSR 292
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|
2916 if ((*p) == NULL || (*p)->is_oop()) return; |
|
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|
2917 if (_ok) { |
|
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|
2918 _nm->print_nmethod(true); |
|
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|
2919 _ok = false; |
|
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|
2920 } |
|
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|
2921 tty->print_cr("*** non-oop "PTR_FORMAT" found at "PTR_FORMAT" (offset %d)", |
|
12316
190899198332
7195622: CheckUnhandledOops has limited usefulness now
hseigel
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12175
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changeset
|
2922 (void *)(*p), (intptr_t)p, (int)((intptr_t)p - (intptr_t)_nm)); |
|
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|
2923 } |
|
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|
2924 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
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|
2925 }; |
|
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|
2926 |
| 0 | 2927 void nmethod::verify() { |
| 2928 | |
| 2929 // Hmm. OSR methods can be deopted but not marked as zombie or not_entrant | |
| 2930 // seems odd. | |
| 2931 | |
| 2932 if( is_zombie() || is_not_entrant() ) | |
| 2933 return; | |
| 2934 | |
| 2935 // Make sure all the entry points are correctly aligned for patching. | |
| 2936 NativeJump::check_verified_entry_alignment(entry_point(), verified_entry_point()); | |
| 2937 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6266
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changeset
|
2938 // assert(method()->is_oop(), "must be valid"); |
| 0 | 2939 |
| 2940 ResourceMark rm; | |
| 2941 | |
| 2942 if (!CodeCache::contains(this)) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
parents:
1489
diff
changeset
|
2943 fatal(err_msg("nmethod at " INTPTR_FORMAT " not in zone", this)); |
| 0 | 2944 } |
| 2945 | |
| 2946 if(is_native_method() ) | |
| 2947 return; | |
| 2948 | |
| 2949 nmethod* nm = CodeCache::find_nmethod(verified_entry_point()); | |
| 2950 if (nm != this) { | |
|
1490
f03d0a26bf83
6888954: argument formatting for assert() and friends
jcoomes
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|
2951 fatal(err_msg("findNMethod did not find this nmethod (" INTPTR_FORMAT ")", |
|
f03d0a26bf83
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jcoomes
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changeset
|
2952 this)); |
| 0 | 2953 } |
| 2954 | |
| 2955 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 2956 if (! p->verify(this)) { | |
| 2957 tty->print_cr("\t\tin nmethod at " INTPTR_FORMAT " (pcs)", this); | |
| 2958 } | |
| 2959 } | |
| 2960 | |
|
989
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|
2961 VerifyOopsClosure voc(this); |
|
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|
2962 oops_do(&voc); |
|
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|
2963 assert(voc.ok(), "embedded oops must be OK"); |
|
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|
2964 verify_scavenge_root_oops(); |
|
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|
2965 |
| 0 | 2966 verify_scopes(); |
| 2967 } | |
| 2968 | |
| 2969 | |
| 2970 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
|
2971 // Verify IC only when nmethod installation is finished. |
| 13441 | 2972 bool is_installed = (method()->code() == this) // nmethod is in state 'in_use' and installed |
| 2973 || !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
|
2974 if (is_installed) { |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2975 Thread *cur = Thread::current(); |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2976 if (CompiledIC_lock->owner() == cur || |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2977 ((cur->is_VM_thread() || cur->is_ConcurrentGC_thread()) && |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
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12334
diff
changeset
|
2978 SafepointSynchronize::is_at_safepoint())) { |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2979 CompiledIC_at(this, call_site); |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2980 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
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12334
diff
changeset
|
2981 } else { |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2982 MutexLocker ml_verify (CompiledIC_lock); |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2983 CompiledIC_at(this, call_site); |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2984 } |
| 0 | 2985 } |
|
13071
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2986 |
|
e2509677809c
8023037: Race between ciEnv::register_method and nmethod::make_not_entrant_or_zombie
vlivanov
parents:
12334
diff
changeset
|
2987 PcDesc* pd = pc_desc_at(nativeCall_at(call_site)->return_address()); |
| 0 | 2988 assert(pd != NULL, "PcDesc must exist"); |
| 2989 for (ScopeDesc* sd = new ScopeDesc(this, pd->scope_decode_offset(), | |
| 9707 | 2990 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
|
2991 pd->return_oop()); |
| 0 | 2992 !sd->is_top(); sd = sd->sender()) { |
| 2993 sd->verify(); | |
| 2994 } | |
| 2995 } | |
| 2996 | |
| 2997 void nmethod::verify_scopes() { | |
| 2998 if( !method() ) return; // Runtime stubs have no scope | |
| 2999 if (method()->is_native()) return; // Ignore stub methods. | |
| 3000 // iterate through all interrupt point | |
| 3001 // and verify the debug information is valid. | |
| 3002 RelocIterator iter((nmethod*)this); | |
| 3003 while (iter.next()) { | |
| 3004 address stub = NULL; | |
| 3005 switch (iter.type()) { | |
| 3006 case relocInfo::virtual_call_type: | |
| 3007 verify_interrupt_point(iter.addr()); | |
| 3008 break; | |
| 3009 case relocInfo::opt_virtual_call_type: | |
| 3010 stub = iter.opt_virtual_call_reloc()->static_stub(); | |
| 3011 verify_interrupt_point(iter.addr()); | |
| 3012 break; | |
| 3013 case relocInfo::static_call_type: | |
| 3014 stub = iter.static_call_reloc()->static_stub(); | |
| 3015 //verify_interrupt_point(iter.addr()); | |
| 3016 break; | |
| 3017 case relocInfo::runtime_call_type: | |
| 3018 address destination = iter.reloc()->value(); | |
| 3019 // Right now there is no way to find out which entries support | |
| 3020 // an interrupt point. It would be nice if we had this | |
| 3021 // information in a table. | |
| 3022 break; | |
| 3023 } | |
| 3024 assert(stub == NULL || stub_contains(stub), "static call stub outside stub section"); | |
| 3025 } | |
| 3026 } | |
| 3027 | |
| 3028 | |
| 3029 // ----------------------------------------------------------------------------- | |
| 3030 // Non-product code | |
| 3031 #ifndef PRODUCT | |
| 3032 | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3033 class DebugScavengeRoot: public OopClosure { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3034 nmethod* _nm; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3035 bool _ok; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3036 public: |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3037 DebugScavengeRoot(nmethod* nm) : _nm(nm), _ok(true) { } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3038 bool ok() { return _ok; } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3039 virtual void do_oop(oop* p) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3040 if ((*p) == NULL || !(*p)->is_scavengable()) return; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3041 if (_ok) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3042 _nm->print_nmethod(true); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3043 _ok = false; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3044 } |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
3045 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
|
3046 (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
|
3047 (*p)->print(); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3048 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3049 virtual void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3050 }; |
| 0 | 3051 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3052 void nmethod::verify_scavenge_root_oops() { |
|
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3053 if (UseG1GC) { |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3054 return; |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3055 } |
|
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
20277
diff
changeset
|
3056 |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3057 if (!on_scavenge_root_list()) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3058 // 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
|
3059 DebugScavengeRoot debug_scavenge_root(this); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3060 oops_do(&debug_scavenge_root); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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931
diff
changeset
|
3061 if (!debug_scavenge_root.ok()) |
|
3377
2aa9ddbb9e60
7041789: 30% perf regression with c2/arm following 7017732
jmasa
parents:
2405
diff
changeset
|
3062 fatal("found an unadvertised bad scavengable oop in the code cache"); |
| 0 | 3063 } |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3064 assert(scavenge_root_not_marked(), ""); |
| 0 | 3065 } |
| 3066 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3067 #endif // PRODUCT |
| 0 | 3068 |
| 3069 // Printing operations | |
| 3070 | |
| 3071 void nmethod::print() const { | |
| 3072 ResourceMark rm; | |
| 3073 ttyLocker ttyl; // keep the following output all in one block | |
| 3074 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3075 tty->print("Compiled method "); |
| 0 | 3076 |
| 3077 if (is_compiled_by_c1()) { | |
| 3078 tty->print("(c1) "); | |
| 3079 } else if (is_compiled_by_c2()) { | |
| 3080 tty->print("(c2) "); | |
| 1692 | 3081 } else if (is_compiled_by_shark()) { |
| 3082 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
|
3083 } 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
|
3084 tty->print("(JVMCI) "); |
| 0 | 3085 } else { |
| 3086 tty->print("(nm) "); | |
| 3087 } | |
| 3088 | |
|
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3089 print_on(tty, NULL); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3090 |
| 0 | 3091 if (WizardMode) { |
| 3092 tty->print("((nmethod*) "INTPTR_FORMAT ") ", this); | |
| 3093 tty->print(" for method " INTPTR_FORMAT , (address)method()); | |
| 3094 tty->print(" { "); | |
| 3095 if (is_in_use()) tty->print("in_use "); | |
| 3096 if (is_not_entrant()) tty->print("not_entrant "); | |
| 3097 if (is_zombie()) tty->print("zombie "); | |
| 3098 if (is_unloaded()) tty->print("unloaded "); | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
931
diff
changeset
|
3099 if (on_scavenge_root_list()) tty->print("scavenge_root "); |
| 0 | 3100 tty->print_cr("}:"); |
| 3101 } | |
| 3102 if (size () > 0) tty->print_cr(" total in heap [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3103 (address)this, | |
| 3104 (address)this + size(), | |
| 3105 size()); | |
| 3106 if (relocation_size () > 0) tty->print_cr(" relocation [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3107 relocation_begin(), | |
| 3108 relocation_end(), | |
| 3109 relocation_size()); | |
|
1762
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3110 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
|
3111 consts_begin(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3112 consts_end(), |
|
0878d7bae69f
6961697: move nmethod constants section before instruction section
twisti
parents:
1748
diff
changeset
|
3113 consts_size()); |
| 1748 | 3114 if (insts_size () > 0) tty->print_cr(" main code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3115 insts_begin(), | |
| 3116 insts_end(), | |
| 3117 insts_size()); | |
| 0 | 3118 if (stub_size () > 0) tty->print_cr(" stub code [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3119 stub_begin(), | |
| 3120 stub_end(), | |
| 3121 stub_size()); | |
|
1563
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3122 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
|
3123 oops_begin(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3124 oops_end(), |
|
1a5913bf5e19
6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents:
1538
diff
changeset
|
3125 oops_size()); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3126 if (metadata_size () > 0) tty->print_cr(" metadata [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3127 metadata_begin(), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3128 metadata_end(), |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3129 metadata_size()); |
| 0 | 3130 if (scopes_data_size () > 0) tty->print_cr(" scopes data [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", |
| 3131 scopes_data_begin(), | |
| 3132 scopes_data_end(), | |
| 3133 scopes_data_size()); | |
| 3134 if (scopes_pcs_size () > 0) tty->print_cr(" scopes pcs [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3135 scopes_pcs_begin(), | |
| 3136 scopes_pcs_end(), | |
| 3137 scopes_pcs_size()); | |
| 3138 if (dependencies_size () > 0) tty->print_cr(" dependencies [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3139 dependencies_begin(), | |
| 3140 dependencies_end(), | |
| 3141 dependencies_size()); | |
| 3142 if (handler_table_size() > 0) tty->print_cr(" handler table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3143 handler_table_begin(), | |
| 3144 handler_table_end(), | |
| 3145 handler_table_size()); | |
| 3146 if (nul_chk_table_size() > 0) tty->print_cr(" nul chk table [" INTPTR_FORMAT "," INTPTR_FORMAT "] = %d", | |
| 3147 nul_chk_table_begin(), | |
| 3148 nul_chk_table_end(), | |
| 3149 nul_chk_table_size()); | |
| 3150 } | |
| 3151 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3152 void nmethod::print_code() { |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3153 HandleMark hm; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3154 ResourceMark m; |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3155 Disassembler::decode(this); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3156 } |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3157 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3158 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3159 #ifndef PRODUCT |
| 0 | 3160 |
| 3161 void nmethod::print_scopes() { | |
| 3162 // Find the first pc desc for all scopes in the code and print it. | |
| 3163 ResourceMark rm; | |
| 3164 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 3165 if (p->scope_decode_offset() == DebugInformationRecorder::serialized_null) | |
| 3166 continue; | |
| 3167 | |
| 3168 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
|
3169 while (sd != NULL) { |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3170 sd->print_on(tty, p); |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3171 sd = sd->sender(); |
|
dcfdd60edaf1
Print full ScopeDesc with PrintDebugInfo
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
18125
diff
changeset
|
3172 } |
| 0 | 3173 } |
| 3174 } | |
| 3175 | |
| 3176 void nmethod::print_dependencies() { | |
| 3177 ResourceMark rm; | |
| 3178 ttyLocker ttyl; // keep the following output all in one block | |
| 3179 tty->print_cr("Dependencies:"); | |
| 3180 for (Dependencies::DepStream deps(this); deps.next(); ) { | |
| 3181 deps.print_dependency(); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3182 Klass* ctxk = deps.context_type(); |
| 0 | 3183 if (ctxk != NULL) { |
| 6983 | 3184 if (ctxk->oop_is_instance() && ((InstanceKlass*)ctxk)->is_dependent_nmethod(this)) { |
| 3185 tty->print_cr(" [nmethod<=klass]%s", ctxk->external_name()); | |
| 0 | 3186 } |
| 3187 } | |
| 3188 deps.log_dependency(); // put it into the xml log also | |
| 3189 } | |
| 3190 } | |
| 3191 | |
| 3192 | |
| 3193 void nmethod::print_relocations() { | |
| 3194 ResourceMark m; // in case methods get printed via the debugger | |
| 3195 tty->print_cr("relocations:"); | |
| 3196 RelocIterator iter(this); | |
| 3197 iter.print(); | |
| 3198 if (UseRelocIndex) { | |
| 3199 jint* index_end = (jint*)relocation_end() - 1; | |
| 3200 jint index_size = *index_end; | |
| 3201 jint* index_start = (jint*)( (address)index_end - index_size ); | |
| 3202 tty->print_cr(" index @" INTPTR_FORMAT ": index_size=%d", index_start, index_size); | |
| 3203 if (index_size > 0) { | |
| 3204 jint* ip; | |
| 3205 for (ip = index_start; ip+2 <= index_end; ip += 2) | |
| 3206 tty->print_cr(" (%d %d) addr=" INTPTR_FORMAT " @" INTPTR_FORMAT, | |
| 3207 ip[0], | |
| 3208 ip[1], | |
| 3209 header_end()+ip[0], | |
| 3210 relocation_begin()-1+ip[1]); | |
| 3211 for (; ip < index_end; ip++) | |
| 3212 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
|
3213 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
|
3214 ip++; |
| 0 | 3215 tty->print_cr("reloc_end @" INTPTR_FORMAT ":", ip); |
| 3216 } | |
| 3217 } | |
| 3218 } | |
| 3219 | |
| 3220 | |
| 3221 void nmethod::print_pcs() { | |
| 3222 ResourceMark m; // in case methods get printed via debugger | |
| 3223 tty->print_cr("pc-bytecode offsets:"); | |
| 3224 for (PcDesc* p = scopes_pcs_begin(); p < scopes_pcs_end(); p++) { | |
| 3225 p->print(this); | |
| 3226 } | |
| 3227 } | |
| 3228 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3229 #endif // PRODUCT |
| 0 | 3230 |
| 3231 const char* nmethod::reloc_string_for(u_char* begin, u_char* end) { | |
| 3232 RelocIterator iter(this, begin, end); | |
| 3233 bool have_one = false; | |
| 3234 while (iter.next()) { | |
| 3235 have_one = true; | |
| 3236 switch (iter.type()) { | |
| 3237 case relocInfo::none: return "no_reloc"; | |
| 3238 case relocInfo::oop_type: { | |
| 3239 stringStream st; | |
| 3240 oop_Relocation* r = iter.oop_reloc(); | |
| 3241 oop obj = r->oop_value(); | |
| 3242 st.print("oop("); | |
| 3243 if (obj == NULL) st.print("NULL"); | |
| 3244 else obj->print_value_on(&st); | |
| 3245 st.print(")"); | |
| 3246 return st.as_string(); | |
| 3247 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3248 case relocInfo::metadata_type: { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3249 stringStream st; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3250 metadata_Relocation* r = iter.metadata_reloc(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3251 Metadata* obj = r->metadata_value(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3252 st.print("metadata("); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3253 if (obj == NULL) st.print("NULL"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3254 else obj->print_value_on(&st); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3255 st.print(")"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3256 return st.as_string(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3257 } |
| 0 | 3258 case relocInfo::virtual_call_type: return "virtual_call"; |
| 3259 case relocInfo::opt_virtual_call_type: return "optimized virtual_call"; | |
| 3260 case relocInfo::static_call_type: return "static_call"; | |
| 3261 case relocInfo::static_stub_type: return "static_stub"; | |
| 3262 case relocInfo::runtime_call_type: return "runtime_call"; | |
| 3263 case relocInfo::external_word_type: return "external_word"; | |
| 3264 case relocInfo::internal_word_type: return "internal_word"; | |
| 3265 case relocInfo::section_word_type: return "section_word"; | |
| 3266 case relocInfo::poll_type: return "poll"; | |
| 3267 case relocInfo::poll_return_type: return "poll_return"; | |
| 3268 case relocInfo::type_mask: return "type_bit_mask"; | |
| 3269 } | |
| 3270 } | |
| 3271 return have_one ? "other" : NULL; | |
| 3272 } | |
| 3273 | |
| 3274 // Return a the last scope in (begin..end] | |
| 3275 ScopeDesc* nmethod::scope_desc_in(address begin, address end) { | |
| 3276 PcDesc* p = pc_desc_near(begin+1); | |
| 3277 if (p != NULL && p->real_pc(this) <= end) { | |
| 3278 return new ScopeDesc(this, p->scope_decode_offset(), | |
| 9707 | 3279 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
|
3280 p->return_oop()); |
| 0 | 3281 } |
| 3282 return NULL; | |
| 3283 } | |
| 3284 | |
|
6796
b31471cdc53e
7200163: add CodeComments functionality to assember stubs
kvn
parents:
6792
diff
changeset
|
3285 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
|
3286 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
|
3287 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
|
3288 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
parents:
1141
diff
changeset
|
3289 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
|
3290 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
|
3291 |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3292 if (has_method_handle_invokes()) |
|
4a665be40fd3
6975855: don't emit deopt MH handler in C1 if not required
twisti
parents:
1644
diff
changeset
|
3293 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
|
3294 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3295 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
|
3296 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3297 if (block_begin == entry_point()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3298 methodHandle m = method(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3299 if (m.not_null()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3300 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3301 m->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3302 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3303 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3304 if (m.not_null() && !is_osr_method()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3305 ResourceMark rm; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3306 int sizeargs = m->size_of_parameters(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3307 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
|
3308 VMRegPair* regs = NEW_RESOURCE_ARRAY(VMRegPair, sizeargs); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3309 { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3310 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3311 if (!m->is_static()) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3312 sig_bt[sig_index++] = T_OBJECT; // 'this' |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3313 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
|
3314 BasicType t = ss.type(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3315 sig_bt[sig_index++] = t; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3316 if (type2size[t] == 2) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3317 sig_bt[sig_index++] = T_VOID; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3318 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3319 assert(type2size[t] == 1, "size is 1 or 2"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3320 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3321 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3322 assert(sig_index == sizeargs, ""); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3323 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3324 const char* spname = "sp"; // make arch-specific? |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3325 intptr_t out_preserve = SharedRuntime::java_calling_convention(sig_bt, regs, sizeargs, false); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3326 int stack_slot_offset = this->frame_size() * wordSize; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3327 int tab1 = 14, tab2 = 24; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3328 int sig_index = 0; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3329 int arg_index = (m->is_static() ? 0 : -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3330 bool did_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3331 for (SignatureStream ss(m->signature()); !ss.at_return_type(); ) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3332 bool at_this = (arg_index == -1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3333 bool at_old_sp = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3334 BasicType t = (at_this ? T_OBJECT : ss.type()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3335 assert(t == sig_bt[sig_index], "sigs in sync"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3336 if (at_this) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3337 stream->print(" # this: "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3338 else |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3339 stream->print(" # parm%d: ", arg_index); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3340 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3341 VMReg fst = regs[sig_index].first(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3342 VMReg snd = regs[sig_index].second(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3343 if (fst->is_reg()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3344 stream->print("%s", fst->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3345 if (snd->is_valid()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3346 stream->print(":%s", snd->name()); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3347 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3348 } else if (fst->is_stack()) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3349 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
|
3350 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
|
3351 stream->print("[%s+0x%x]", spname, offset); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3352 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3353 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
|
3354 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3355 stream->print(" "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3356 stream->move_to(tab2); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3357 stream->print("= "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3358 if (at_this) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3359 m->method_holder()->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3360 } else { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3361 bool did_name = false; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3362 if (!at_this && ss.is_object()) { |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2142
diff
changeset
|
3363 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
|
3364 if (name != NULL) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3365 name->print_value_on(stream); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3366 did_name = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3367 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3368 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3369 if (!did_name) |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3370 stream->print("%s", type2name(t)); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3371 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3372 if (at_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3373 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3374 did_old_sp = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3375 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3376 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3377 sig_index += type2size[t]; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3378 arg_index += 1; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3379 if (!at_this) ss.next(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3380 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3381 if (!did_old_sp) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3382 stream->print(" # "); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3383 stream->move_to(tab1); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3384 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
|
3385 stream->print(" (%s of caller)", spname); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3386 stream->cr(); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3387 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3388 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3389 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3390 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1141
diff
changeset
|
3391 |
| 0 | 3392 void nmethod::print_code_comment_on(outputStream* st, int column, u_char* begin, u_char* end) { |
| 3393 // First, find an oopmap in (begin, end]. | |
| 3394 // We use the odd half-closed interval so that oop maps and scope descs | |
| 3395 // which are tied to the byte after a call are printed with the call itself. | |
| 1748 | 3396 address base = code_begin(); |
| 0 | 3397 OopMapSet* oms = oop_maps(); |
| 3398 if (oms != NULL) { | |
| 3399 for (int i = 0, imax = oms->size(); i < imax; i++) { | |
| 3400 OopMap* om = oms->at(i); | |
| 3401 address pc = base + om->offset(); | |
| 3402 if (pc > begin) { | |
| 3403 if (pc <= end) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3404 st->move_to(column); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3405 st->print("; "); |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3406 om->print_on(st); |
| 0 | 3407 } |
| 3408 break; | |
| 3409 } | |
| 3410 } | |
| 3411 } | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3412 |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3413 // Print any debug info present at this pc. |
| 0 | 3414 ScopeDesc* sd = scope_desc_in(begin, end); |
| 3415 if (sd != NULL) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3416 st->move_to(column); |
| 0 | 3417 if (sd->bci() == SynchronizationEntryBCI) { |
| 3418 st->print(";*synchronization entry"); | |
| 3419 } else { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3420 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3421 st->print("method is NULL"); |
| 0 | 3422 } else if (sd->method()->is_native()) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3423 st->print("method is native"); |
| 0 | 3424 } else { |
| 2142 | 3425 Bytecodes::Code bc = sd->method()->java_code_at(sd->bci()); |
| 0 | 3426 st->print(";*%s", Bytecodes::name(bc)); |
| 3427 switch (bc) { | |
| 3428 case Bytecodes::_invokevirtual: | |
| 3429 case Bytecodes::_invokespecial: | |
| 3430 case Bytecodes::_invokestatic: | |
| 3431 case Bytecodes::_invokeinterface: | |
| 3432 { | |
| 2142 | 3433 Bytecode_invoke invoke(sd->method(), sd->bci()); |
| 0 | 3434 st->print(" "); |
| 2142 | 3435 if (invoke.name() != NULL) |
| 3436 invoke.name()->print_symbol_on(st); | |
| 0 | 3437 else |
| 3438 st->print("<UNKNOWN>"); | |
| 3439 break; | |
| 3440 } | |
| 3441 case Bytecodes::_getfield: | |
| 3442 case Bytecodes::_putfield: | |
| 3443 case Bytecodes::_getstatic: | |
| 3444 case Bytecodes::_putstatic: | |
| 3445 { | |
| 2142 | 3446 Bytecode_field field(sd->method(), sd->bci()); |
| 0 | 3447 st->print(" "); |
| 2142 | 3448 if (field.name() != NULL) |
| 3449 field.name()->print_symbol_on(st); | |
| 0 | 3450 else |
| 3451 st->print("<UNKNOWN>"); | |
| 3452 } | |
| 3453 } | |
| 3454 } | |
|
21205
f34ae5c01864
include reexecute, rethrow_exception and return_oop info when disassembling debug scopes
Doug Simon <doug.simon@oracle.com>
parents:
21158
diff
changeset
|
3455 st->print(" {reexecute=%d rethrow=%d return_oop=%d}", sd->should_reexecute(), sd->rethrow_exception(), sd->return_oop()); |
| 0 | 3456 } |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3457 |
| 0 | 3458 // Print all scopes |
| 3459 for (;sd != NULL; sd = sd->sender()) { | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3460 st->move_to(column); |
| 0 | 3461 st->print("; -"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
3462 if (sd->method() == NULL) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3463 st->print("method is NULL"); |
| 0 | 3464 } else { |
| 3465 sd->method()->print_short_name(st); | |
| 3466 } | |
| 3467 int lineno = sd->method()->line_number_from_bci(sd->bci()); | |
| 3468 if (lineno != -1) { | |
| 3469 st->print("@%d (line %d)", sd->bci(), lineno); | |
| 3470 } else { | |
| 3471 st->print("@%d", sd->bci()); | |
| 3472 } | |
| 3473 st->cr(); | |
| 3474 } | |
| 3475 } | |
| 3476 | |
| 3477 // Print relocation information | |
| 3478 const char* str = reloc_string_for(begin, end); | |
| 3479 if (str != NULL) { | |
| 3480 if (sd != NULL) st->cr(); | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3481 st->move_to(column); |
| 0 | 3482 st->print("; {%s}", str); |
| 3483 } | |
| 1748 | 3484 int cont_offset = ImplicitExceptionTable(this).at(begin - code_begin()); |
| 0 | 3485 if (cont_offset != 0) { |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3486 st->move_to(column); |
| 1748 | 3487 st->print("; implicit exception: dispatches to " INTPTR_FORMAT, code_begin() + cont_offset); |
| 0 | 3488 } |
| 3489 | |
| 3490 } | |
| 3491 | |
|
100
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3492 #ifndef PRODUCT |
|
c7c777385a15
6667042: PrintAssembly option does not work without special plugin
jrose
parents:
30
diff
changeset
|
3493 |
| 0 | 3494 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
|
3495 st->print("nmethod"); |
|
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2376
diff
changeset
|
3496 print_on(st, NULL); |
| 0 | 3497 } |
| 3498 | |
| 3499 void nmethod::print_calls(outputStream* st) { | |
| 3500 RelocIterator iter(this); | |
| 3501 while (iter.next()) { | |
| 3502 switch (iter.type()) { | |
| 3503 case relocInfo::virtual_call_type: | |
| 3504 case relocInfo::opt_virtual_call_type: { | |
| 3505 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
|
3506 CompiledIC_at(&iter)->print(); |
| 0 | 3507 break; |
| 3508 } | |
| 3509 case relocInfo::static_call_type: | |
| 3510 st->print_cr("Static call at " INTPTR_FORMAT, iter.reloc()->addr()); | |
| 3511 compiledStaticCall_at(iter.reloc())->print(); | |
| 3512 break; | |
| 3513 } | |
| 3514 } | |
| 3515 } | |
| 3516 | |
| 3517 void nmethod::print_handler_table() { | |
| 3518 ExceptionHandlerTable(this).print(); | |
| 3519 } | |
| 3520 | |
| 3521 void nmethod::print_nul_chk_table() { | |
| 1748 | 3522 ImplicitExceptionTable(this).print(code_begin()); |
| 0 | 3523 } |
|
14733
b10e42998d01
nmethod: fix -XX:+PrintNMethodStatistics
Bernhard Urban <bernhard.urban@jku.at>
parents:
14726
diff
changeset
|
3524 #endif // PRODUCT |
| 0 | 3525 |
| 3526 void nmethod::print_statistics() { | |
| 3527 ttyLocker ttyl; | |
| 3528 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
|
3529 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
|
3530 #ifdef COMPILER1 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3531 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
|
3532 #endif |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3533 #ifdef COMPILER2 |
|
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3534 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
|
3535 #endif |
| 22298 | 3536 #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
|
3537 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
|
3538 #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
|
3539 #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
|
3540 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
|
3541 #endif |
|
12758
ca33948fb804
nmethod.cpp: s/unknwon/unknown/
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12704
diff
changeset
|
3542 unknown_java_nmethod_stats.print_nmethod_stats("Unknown"); |
| 0 | 3543 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
|
3544 #ifndef PRODUCT |
|
12675
7fedc59e2cdc
Split code cache stats for the different compilers
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
12414
diff
changeset
|
3545 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
|
3546 #endif |
| 0 | 3547 Dependencies::print_statistics(); |
| 3548 if (xtty != NULL) xtty->tail("statistics"); | |
| 3549 } | |
|
21153
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3550 |
| 22298 | 3551 #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
|
3552 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:
21205
diff
changeset
|
3553 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:
21143
diff
changeset
|
3554 return NULL; |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3555 } |
|
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21205
diff
changeset
|
3556 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:
21143
diff
changeset
|
3557 if (installedCode != NULL) { |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3558 oop installedCodeName = NULL; |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3559 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:
21143
diff
changeset
|
3560 installedCodeName = InstalledCode::name(installedCode); |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3561 } |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3562 if (installedCodeName != NULL) { |
|
21158
d114be1b5b3f
explicitly convert to int to satisfy windows builder
Christian Wirth <christian.wirth@oracle.com>
parents:
21153
diff
changeset
|
3563 return java_lang_String::as_utf8_string(installedCodeName, buf, (int)buflen); |
|
21153
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3564 } else { |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3565 jio_snprintf(buf, buflen, "null"); |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3566 return buf; |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3567 } |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3568 } |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3569 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
changeset
|
3570 return buf; |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3571 } |
|
1621af5cb444
Print Graal installed code name when printing frames or diassembly
Gilles Duboscq <gilles.m.duboscq@oracle.com>
parents:
21143
diff
changeset
|
3572 #endif |