Mercurial > hg > graal-compiler
annotate src/share/vm/compiler/compileBroker.cpp @ 8771:75a28f465a12
8008663: [parfait] Null pointer deference in hotspot/src/share/vm/compiler/compileBroker.cpp
Summary: add NULL checks for compiler name
Reviewed-by: twisti, kvn
| author | morris |
|---|---|
| date | Tue, 19 Mar 2013 07:23:29 -0700 |
| parents | b7c2c5b2572c |
| children | 46f6f063b272 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/systemDictionary.hpp" | |
| 27 #include "classfile/vmSymbols.hpp" | |
| 28 #include "code/codeCache.hpp" | |
| 29 #include "compiler/compileBroker.hpp" | |
| 30 #include "compiler/compileLog.hpp" | |
| 31 #include "compiler/compilerOracle.hpp" | |
| 32 #include "interpreter/linkResolver.hpp" | |
| 33 #include "memory/allocation.inline.hpp" | |
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34 #include "oops/methodData.hpp" |
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35 #include "oops/method.hpp" |
| 1972 | 36 #include "oops/oop.inline.hpp" |
| 37 #include "prims/nativeLookup.hpp" | |
| 38 #include "runtime/arguments.hpp" | |
| 39 #include "runtime/compilationPolicy.hpp" | |
| 40 #include "runtime/init.hpp" | |
| 41 #include "runtime/interfaceSupport.hpp" | |
| 42 #include "runtime/javaCalls.hpp" | |
| 43 #include "runtime/os.hpp" | |
| 44 #include "runtime/sharedRuntime.hpp" | |
| 45 #include "runtime/sweeper.hpp" | |
| 46 #include "utilities/dtrace.hpp" | |
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47 #include "utilities/events.hpp" |
| 1972 | 48 #ifdef COMPILER1 |
| 49 #include "c1/c1_Compiler.hpp" | |
| 50 #endif | |
| 51 #ifdef COMPILER2 | |
| 52 #include "opto/c2compiler.hpp" | |
| 53 #endif | |
| 54 #ifdef SHARK | |
| 55 #include "shark/sharkCompiler.hpp" | |
| 56 #endif | |
| 0 | 57 |
| 58 #ifdef DTRACE_ENABLED | |
| 59 | |
| 60 // Only bother with this argument setup if dtrace is available | |
| 61 | |
| 4006 | 62 #ifndef USDT2 |
| 0 | 63 HS_DTRACE_PROBE_DECL8(hotspot, method__compile__begin, |
| 64 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t); | |
| 65 HS_DTRACE_PROBE_DECL9(hotspot, method__compile__end, | |
| 66 char*, intptr_t, char*, intptr_t, char*, intptr_t, char*, intptr_t, bool); | |
| 67 | |
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68 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) \ |
| 0 | 69 { \ |
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70 Symbol* klass_name = (method)->klass_name(); \ |
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71 Symbol* name = (method)->name(); \ |
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72 Symbol* signature = (method)->signature(); \ |
| 0 | 73 HS_DTRACE_PROBE8(hotspot, method__compile__begin, \ |
| 74 comp_name, strlen(comp_name), \ | |
| 75 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 76 name->bytes(), name->utf8_length(), \ | |
| 77 signature->bytes(), signature->utf8_length()); \ | |
| 78 } | |
| 79 | |
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80 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, \ |
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81 comp_name, success) \ |
| 0 | 82 { \ |
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83 Symbol* klass_name = (method)->klass_name(); \ |
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84 Symbol* name = (method)->name(); \ |
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85 Symbol* signature = (method)->signature(); \ |
| 0 | 86 HS_DTRACE_PROBE9(hotspot, method__compile__end, \ |
| 87 comp_name, strlen(comp_name), \ | |
| 88 klass_name->bytes(), klass_name->utf8_length(), \ | |
| 89 name->bytes(), name->utf8_length(), \ | |
| 90 signature->bytes(), signature->utf8_length(), (success)); \ | |
| 91 } | |
| 92 | |
| 4006 | 93 #else /* USDT2 */ |
| 94 | |
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95 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) \ |
| 4006 | 96 { \ |
| 97 Symbol* klass_name = (method)->klass_name(); \ | |
| 98 Symbol* name = (method)->name(); \ | |
| 99 Symbol* signature = (method)->signature(); \ | |
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100 HOTSPOT_METHOD_COMPILE_BEGIN( \ |
| 4006 | 101 comp_name, strlen(comp_name), \ |
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102 (char *) klass_name->bytes(), klass_name->utf8_length(), \ |
| 4006 | 103 (char *) name->bytes(), name->utf8_length(), \ |
| 104 (char *) signature->bytes(), signature->utf8_length()); \ | |
| 105 } | |
| 106 | |
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107 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, \ |
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108 comp_name, success) \ |
| 4006 | 109 { \ |
| 110 Symbol* klass_name = (method)->klass_name(); \ | |
| 111 Symbol* name = (method)->name(); \ | |
| 112 Symbol* signature = (method)->signature(); \ | |
| 113 HOTSPOT_METHOD_COMPILE_END( \ | |
| 114 comp_name, strlen(comp_name), \ | |
| 115 (char *) klass_name->bytes(), klass_name->utf8_length(), \ | |
| 116 (char *) name->bytes(), name->utf8_length(), \ | |
| 117 (char *) signature->bytes(), signature->utf8_length(), (success)); \ | |
| 118 } | |
| 119 #endif /* USDT2 */ | |
| 120 | |
| 0 | 121 #else // ndef DTRACE_ENABLED |
| 122 | |
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123 #define DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler, method, comp_name) |
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124 #define DTRACE_METHOD_COMPILE_END_PROBE(compiler, method, comp_name, success) |
| 0 | 125 |
| 126 #endif // ndef DTRACE_ENABLED | |
| 127 | |
| 128 bool CompileBroker::_initialized = false; | |
| 129 volatile bool CompileBroker::_should_block = false; | |
| 1202 | 130 volatile jint CompileBroker::_should_compile_new_jobs = run_compilation; |
| 0 | 131 |
| 132 // The installed compiler(s) | |
| 133 AbstractCompiler* CompileBroker::_compilers[2]; | |
| 134 | |
| 135 // These counters are used for assigning id's to each compilation | |
| 136 uint CompileBroker::_compilation_id = 0; | |
| 137 uint CompileBroker::_osr_compilation_id = 0; | |
| 138 | |
| 139 // Debugging information | |
| 140 int CompileBroker::_last_compile_type = no_compile; | |
| 141 int CompileBroker::_last_compile_level = CompLevel_none; | |
| 142 char CompileBroker::_last_method_compiled[CompileBroker::name_buffer_length]; | |
| 143 | |
| 144 // Performance counters | |
| 145 PerfCounter* CompileBroker::_perf_total_compilation = NULL; | |
| 146 PerfCounter* CompileBroker::_perf_osr_compilation = NULL; | |
| 147 PerfCounter* CompileBroker::_perf_standard_compilation = NULL; | |
| 148 | |
| 149 PerfCounter* CompileBroker::_perf_total_bailout_count = NULL; | |
| 150 PerfCounter* CompileBroker::_perf_total_invalidated_count = NULL; | |
| 151 PerfCounter* CompileBroker::_perf_total_compile_count = NULL; | |
| 152 PerfCounter* CompileBroker::_perf_total_osr_compile_count = NULL; | |
| 153 PerfCounter* CompileBroker::_perf_total_standard_compile_count = NULL; | |
| 154 | |
| 155 PerfCounter* CompileBroker::_perf_sum_osr_bytes_compiled = NULL; | |
| 156 PerfCounter* CompileBroker::_perf_sum_standard_bytes_compiled = NULL; | |
| 157 PerfCounter* CompileBroker::_perf_sum_nmethod_size = NULL; | |
| 158 PerfCounter* CompileBroker::_perf_sum_nmethod_code_size = NULL; | |
| 159 | |
| 160 PerfStringVariable* CompileBroker::_perf_last_method = NULL; | |
| 161 PerfStringVariable* CompileBroker::_perf_last_failed_method = NULL; | |
| 162 PerfStringVariable* CompileBroker::_perf_last_invalidated_method = NULL; | |
| 163 PerfVariable* CompileBroker::_perf_last_compile_type = NULL; | |
| 164 PerfVariable* CompileBroker::_perf_last_compile_size = NULL; | |
| 165 PerfVariable* CompileBroker::_perf_last_failed_type = NULL; | |
| 166 PerfVariable* CompileBroker::_perf_last_invalidated_type = NULL; | |
| 167 | |
| 168 // Timers and counters for generating statistics | |
| 169 elapsedTimer CompileBroker::_t_total_compilation; | |
| 170 elapsedTimer CompileBroker::_t_osr_compilation; | |
| 171 elapsedTimer CompileBroker::_t_standard_compilation; | |
| 172 | |
| 173 int CompileBroker::_total_bailout_count = 0; | |
| 174 int CompileBroker::_total_invalidated_count = 0; | |
| 175 int CompileBroker::_total_compile_count = 0; | |
| 176 int CompileBroker::_total_osr_compile_count = 0; | |
| 177 int CompileBroker::_total_standard_compile_count = 0; | |
| 178 | |
| 179 int CompileBroker::_sum_osr_bytes_compiled = 0; | |
| 180 int CompileBroker::_sum_standard_bytes_compiled = 0; | |
| 181 int CompileBroker::_sum_nmethod_size = 0; | |
| 182 int CompileBroker::_sum_nmethod_code_size = 0; | |
| 183 | |
| 1783 | 184 CompileQueue* CompileBroker::_c2_method_queue = NULL; |
| 185 CompileQueue* CompileBroker::_c1_method_queue = NULL; | |
| 0 | 186 CompileTask* CompileBroker::_task_free_list = NULL; |
| 187 | |
| 188 GrowableArray<CompilerThread*>* CompileBroker::_method_threads = NULL; | |
| 189 | |
| 190 | |
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191 class CompilationLog : public StringEventLog { |
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192 public: |
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193 CompilationLog() : StringEventLog("Compilation events") { |
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194 } |
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195 |
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196 void log_compile(JavaThread* thread, CompileTask* task) { |
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197 StringLogMessage lm; |
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198 stringStream sstr = lm.stream(); |
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199 // msg.time_stamp().update_to(tty->time_stamp().ticks()); |
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200 task->print_compilation(&sstr, NULL, true); |
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201 log(thread, "%s", (const char*)lm); |
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202 } |
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203 |
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204 void log_nmethod(JavaThread* thread, nmethod* nm) { |
| 4944 | 205 log(thread, "nmethod %d%s " INTPTR_FORMAT " code ["INTPTR_FORMAT ", " INTPTR_FORMAT "]", |
| 206 nm->compile_id(), nm->is_osr_method() ? "%" : "", | |
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207 nm, nm->code_begin(), nm->code_end()); |
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208 } |
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209 |
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210 void log_failure(JavaThread* thread, CompileTask* task, const char* reason, const char* retry_message) { |
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211 StringLogMessage lm; |
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212 lm.print("%4d COMPILE SKIPPED: %s", task->compile_id(), reason); |
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213 if (retry_message != NULL) { |
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214 lm.append(" (%s)", retry_message); |
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215 } |
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216 lm.print("\n"); |
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217 log(thread, "%s", (const char*)lm); |
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218 } |
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219 }; |
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220 |
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221 static CompilationLog* _compilation_log = NULL; |
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222 |
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223 void compileBroker_init() { |
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224 if (LogEvents) { |
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225 _compilation_log = new CompilationLog(); |
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226 } |
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227 } |
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228 |
| 0 | 229 CompileTaskWrapper::CompileTaskWrapper(CompileTask* task) { |
| 230 CompilerThread* thread = CompilerThread::current(); | |
| 231 thread->set_task(task); | |
| 232 CompileLog* log = thread->log(); | |
| 233 if (log != NULL) task->log_task_start(log); | |
| 234 } | |
| 235 | |
| 236 CompileTaskWrapper::~CompileTaskWrapper() { | |
| 237 CompilerThread* thread = CompilerThread::current(); | |
| 238 CompileTask* task = thread->task(); | |
| 239 CompileLog* log = thread->log(); | |
| 240 if (log != NULL) task->log_task_done(log); | |
| 241 thread->set_task(NULL); | |
| 242 task->set_code_handle(NULL); | |
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243 thread->set_env(NULL); |
| 0 | 244 if (task->is_blocking()) { |
| 245 MutexLocker notifier(task->lock(), thread); | |
| 246 task->mark_complete(); | |
| 247 // Notify the waiting thread that the compilation has completed. | |
| 248 task->lock()->notify_all(); | |
| 249 } else { | |
| 250 task->mark_complete(); | |
| 251 | |
| 252 // By convention, the compiling thread is responsible for | |
| 253 // recycling a non-blocking CompileTask. | |
| 254 CompileBroker::free_task(task); | |
| 255 } | |
| 256 } | |
| 257 | |
| 258 | |
| 259 // ------------------------------------------------------------------ | |
| 260 // CompileTask::initialize | |
| 261 void CompileTask::initialize(int compile_id, | |
| 262 methodHandle method, | |
| 263 int osr_bci, | |
| 264 int comp_level, | |
| 265 methodHandle hot_method, | |
| 266 int hot_count, | |
| 267 const char* comment, | |
| 268 bool is_blocking) { | |
| 269 assert(!_lock->is_locked(), "bad locking"); | |
| 270 | |
| 271 _compile_id = compile_id; | |
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272 _method = method(); |
| 7409 | 273 _method_holder = JNIHandles::make_global(method->method_holder()->klass_holder()); |
| 0 | 274 _osr_bci = osr_bci; |
| 275 _is_blocking = is_blocking; | |
| 276 _comp_level = comp_level; | |
| 277 _num_inlined_bytecodes = 0; | |
| 278 | |
| 279 _is_complete = false; | |
| 280 _is_success = false; | |
| 281 _code_handle = NULL; | |
| 282 | |
| 283 _hot_method = NULL; | |
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284 _hot_method_holder = NULL; |
| 0 | 285 _hot_count = hot_count; |
| 286 _time_queued = 0; // tidy | |
| 287 _comment = comment; | |
| 288 | |
| 289 if (LogCompilation) { | |
| 290 _time_queued = os::elapsed_counter(); | |
| 291 if (hot_method.not_null()) { | |
| 292 if (hot_method == method) { | |
| 293 _hot_method = _method; | |
| 294 } else { | |
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295 _hot_method = hot_method(); |
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296 // only add loader or mirror if different from _method_holder |
| 7409 | 297 _hot_method_holder = JNIHandles::make_global(hot_method->method_holder()->klass_holder()); |
| 0 | 298 } |
| 299 } | |
| 300 } | |
| 301 | |
| 302 _next = NULL; | |
| 303 } | |
| 304 | |
| 305 // ------------------------------------------------------------------ | |
| 306 // CompileTask::code/set_code | |
| 307 nmethod* CompileTask::code() const { | |
| 308 if (_code_handle == NULL) return NULL; | |
| 309 return _code_handle->code(); | |
| 310 } | |
| 311 void CompileTask::set_code(nmethod* nm) { | |
| 312 if (_code_handle == NULL && nm == NULL) return; | |
| 313 guarantee(_code_handle != NULL, ""); | |
| 314 _code_handle->set_code(nm); | |
| 315 if (nm == NULL) _code_handle = NULL; // drop the handle also | |
| 316 } | |
| 317 | |
| 318 // ------------------------------------------------------------------ | |
| 319 // CompileTask::free | |
| 320 void CompileTask::free() { | |
| 321 set_code(NULL); | |
| 322 assert(!_lock->is_locked(), "Should not be locked when freed"); | |
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323 JNIHandles::destroy_global(_method_holder); |
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324 JNIHandles::destroy_global(_hot_method_holder); |
| 0 | 325 } |
| 326 | |
| 327 | |
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328 void CompileTask::mark_on_stack() { |
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329 // Mark these methods as something redefine classes cannot remove. |
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330 _method->set_on_stack(true); |
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331 if (_hot_method != NULL) { |
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332 _hot_method->set_on_stack(true); |
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333 } |
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334 } |
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335 |
| 0 | 336 // ------------------------------------------------------------------ |
| 337 // CompileTask::print | |
| 338 void CompileTask::print() { | |
| 339 tty->print("<CompileTask compile_id=%d ", _compile_id); | |
| 340 tty->print("method="); | |
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341 _method->print_name(tty); |
| 0 | 342 tty->print_cr(" osr_bci=%d is_blocking=%s is_complete=%s is_success=%s>", |
| 343 _osr_bci, bool_to_str(_is_blocking), | |
| 344 bool_to_str(_is_complete), bool_to_str(_is_success)); | |
| 345 } | |
| 346 | |
| 1783 | 347 |
| 0 | 348 // ------------------------------------------------------------------ |
| 349 // CompileTask::print_line_on_error | |
| 350 // | |
| 351 // This function is called by fatal error handler when the thread | |
| 352 // causing troubles is a compiler thread. | |
| 353 // | |
| 354 // Do not grab any lock, do not allocate memory. | |
| 355 // | |
| 356 // Otherwise it's the same as CompileTask::print_line() | |
| 357 // | |
| 358 void CompileTask::print_line_on_error(outputStream* st, char* buf, int buflen) { | |
| 359 // print compiler name | |
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360 st->print("%s:", CompileBroker::compiler_name(comp_level())); |
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361 print_compilation(st); |
| 0 | 362 } |
| 363 | |
| 364 // ------------------------------------------------------------------ | |
| 365 // CompileTask::print_line | |
| 366 void CompileTask::print_line() { | |
| 367 ttyLocker ttyl; // keep the following output all in one block | |
| 368 // print compiler name if requested | |
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369 if (CIPrintCompilerName) tty->print("%s:", CompileBroker::compiler_name(comp_level())); |
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370 print_compilation(); |
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371 } |
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372 |
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373 |
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374 // ------------------------------------------------------------------ |
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375 // CompileTask::print_compilation_impl |
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376 void CompileTask::print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level, |
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377 bool is_osr_method, int osr_bci, bool is_blocking, |
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378 const char* msg, bool short_form) { |
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379 if (!short_form) { |
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380 st->print("%7d ", (int) st->time_stamp().milliseconds()); // print timestamp |
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381 } |
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382 st->print("%4d ", compile_id); // print compilation number |
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383 |
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384 // For unloaded methods the transition to zombie occurs after the |
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385 // method is cleared so it's impossible to report accurate |
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386 // information for that case. |
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387 bool is_synchronized = false; |
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388 bool has_exception_handler = false; |
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389 bool is_native = false; |
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390 if (method != NULL) { |
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391 is_synchronized = method->is_synchronized(); |
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392 has_exception_handler = method->has_exception_handler(); |
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393 is_native = method->is_native(); |
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394 } |
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395 // method attributes |
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396 const char compile_type = is_osr_method ? '%' : ' '; |
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397 const char sync_char = is_synchronized ? 's' : ' '; |
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398 const char exception_char = has_exception_handler ? '!' : ' '; |
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399 const char blocking_char = is_blocking ? 'b' : ' '; |
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400 const char native_char = is_native ? 'n' : ' '; |
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401 |
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402 // print method attributes |
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403 st->print("%c%c%c%c%c ", compile_type, sync_char, exception_char, blocking_char, native_char); |
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404 |
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405 if (TieredCompilation) { |
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406 if (comp_level != -1) st->print("%d ", comp_level); |
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407 else st->print("- "); |
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408 } |
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409 st->print(" "); // more indent |
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410 |
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411 if (method == NULL) { |
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412 st->print("(method)"); |
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413 } else { |
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414 method->print_short_name(st); |
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415 if (is_osr_method) { |
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416 st->print(" @ %d", osr_bci); |
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417 } |
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418 if (method->is_native()) |
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419 st->print(" (native)"); |
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420 else |
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421 st->print(" (%d bytes)", method->code_size()); |
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422 } |
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423 |
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424 if (msg != NULL) { |
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425 st->print(" %s", msg); |
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426 } |
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427 if (!short_form) { |
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428 st->cr(); |
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429 } |
| 0 | 430 } |
| 431 | |
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432 // ------------------------------------------------------------------ |
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433 // CompileTask::print_inlining |
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434 void CompileTask::print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg) { |
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435 // 1234567 |
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436 st->print(" "); // print timestamp |
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437 // 1234 |
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438 st->print(" "); // print compilation number |
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439 |
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440 // method attributes |
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441 if (method->is_loaded()) { |
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442 const char sync_char = method->is_synchronized() ? 's' : ' '; |
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443 const char exception_char = method->has_exception_handlers() ? '!' : ' '; |
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444 const char monitors_char = method->has_monitor_bytecodes() ? 'm' : ' '; |
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445 |
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446 // print method attributes |
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447 st->print(" %c%c%c ", sync_char, exception_char, monitors_char); |
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448 } else { |
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449 // %s!bn |
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450 st->print(" "); // print method attributes |
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451 } |
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452 |
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453 if (TieredCompilation) { |
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454 st->print(" "); |
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455 } |
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456 st->print(" "); // more indent |
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457 st->print(" "); // initial inlining indent |
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458 |
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459 for (int i = 0; i < inline_level; i++) st->print(" "); |
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460 |
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461 st->print("@ %d ", bci); // print bci |
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462 method->print_short_name(st); |
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463 if (method->is_loaded()) |
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464 st->print(" (%d bytes)", method->code_size()); |
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465 else |
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466 st->print(" (not loaded)"); |
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467 |
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468 if (msg != NULL) { |
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469 st->print(" %s", msg); |
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470 } |
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471 st->cr(); |
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472 } |
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473 |
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474 // ------------------------------------------------------------------ |
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475 // CompileTask::print_inline_indent |
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476 void CompileTask::print_inline_indent(int inline_level, outputStream* st) { |
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477 // 1234567 |
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478 st->print(" "); // print timestamp |
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479 // 1234 |
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480 st->print(" "); // print compilation number |
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481 // %s!bn |
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482 st->print(" "); // print method attributes |
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483 if (TieredCompilation) { |
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484 st->print(" "); |
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485 } |
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486 st->print(" "); // more indent |
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487 st->print(" "); // initial inlining indent |
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488 for (int i = 0; i < inline_level; i++) st->print(" "); |
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489 } |
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490 |
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491 // ------------------------------------------------------------------ |
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492 // CompileTask::print_compilation |
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493 void CompileTask::print_compilation(outputStream* st, const char* msg, bool short_form) { |
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494 bool is_osr_method = osr_bci() != InvocationEntryBci; |
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495 print_compilation_impl(st, method(), compile_id(), comp_level(), is_osr_method, osr_bci(), is_blocking(), msg, short_form); |
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496 } |
| 0 | 497 |
| 498 // ------------------------------------------------------------------ | |
| 499 // CompileTask::log_task | |
| 500 void CompileTask::log_task(xmlStream* log) { | |
| 501 Thread* thread = Thread::current(); | |
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502 methodHandle method(thread, this->method()); |
| 0 | 503 ResourceMark rm(thread); |
| 504 | |
| 505 // <task id='9' method='M' osr_bci='X' level='1' blocking='1' stamp='1.234'> | |
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506 log->print(" compile_id='%d'", _compile_id); |
| 0 | 507 if (_osr_bci != CompileBroker::standard_entry_bci) { |
| 508 log->print(" compile_kind='osr'"); // same as nmethod::compile_kind | |
| 509 } // else compile_kind='c2c' | |
| 510 if (!method.is_null()) log->method(method); | |
| 511 if (_osr_bci != CompileBroker::standard_entry_bci) { | |
| 512 log->print(" osr_bci='%d'", _osr_bci); | |
| 513 } | |
| 514 if (_comp_level != CompLevel_highest_tier) { | |
| 515 log->print(" level='%d'", _comp_level); | |
| 516 } | |
| 517 if (_is_blocking) { | |
| 518 log->print(" blocking='1'"); | |
| 519 } | |
| 520 log->stamp(); | |
| 521 } | |
| 522 | |
| 523 | |
| 524 // ------------------------------------------------------------------ | |
| 525 // CompileTask::log_task_queued | |
| 526 void CompileTask::log_task_queued() { | |
| 527 Thread* thread = Thread::current(); | |
| 528 ttyLocker ttyl; | |
| 529 ResourceMark rm(thread); | |
| 530 | |
| 531 xtty->begin_elem("task_queued"); | |
| 532 log_task(xtty); | |
| 533 if (_comment != NULL) { | |
| 534 xtty->print(" comment='%s'", _comment); | |
| 535 } | |
| 536 if (_hot_method != NULL) { | |
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537 methodHandle hot(thread, _hot_method); |
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538 methodHandle method(thread, _method); |
| 0 | 539 if (hot() != method()) { |
| 540 xtty->method(hot); | |
| 541 } | |
| 542 } | |
| 543 if (_hot_count != 0) { | |
| 544 xtty->print(" hot_count='%d'", _hot_count); | |
| 545 } | |
| 546 xtty->end_elem(); | |
| 547 } | |
| 548 | |
| 549 | |
| 550 // ------------------------------------------------------------------ | |
| 551 // CompileTask::log_task_start | |
| 552 void CompileTask::log_task_start(CompileLog* log) { | |
| 553 log->begin_head("task"); | |
| 554 log_task(log); | |
| 555 log->end_head(); | |
| 556 } | |
| 557 | |
| 558 | |
| 559 // ------------------------------------------------------------------ | |
| 560 // CompileTask::log_task_done | |
| 561 void CompileTask::log_task_done(CompileLog* log) { | |
| 562 Thread* thread = Thread::current(); | |
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563 methodHandle method(thread, this->method()); |
| 0 | 564 ResourceMark rm(thread); |
| 565 | |
| 566 // <task_done ... stamp='1.234'> </task> | |
| 567 nmethod* nm = code(); | |
| 568 log->begin_elem("task_done success='%d' nmsize='%d' count='%d'", | |
| 1748 | 569 _is_success, nm == NULL ? 0 : nm->content_size(), |
| 0 | 570 method->invocation_count()); |
| 571 int bec = method->backedge_count(); | |
| 572 if (bec != 0) log->print(" backedge_count='%d'", bec); | |
| 573 // Note: "_is_complete" is about to be set, but is not. | |
| 574 if (_num_inlined_bytecodes != 0) { | |
| 575 log->print(" inlined_bytes='%d'", _num_inlined_bytecodes); | |
| 576 } | |
| 577 log->stamp(); | |
| 578 log->end_elem(); | |
| 579 log->tail("task"); | |
| 580 log->clear_identities(); // next task will have different CI | |
| 581 if (log->unflushed_count() > 2000) { | |
| 582 log->flush(); | |
| 583 } | |
| 584 log->mark_file_end(); | |
| 585 } | |
| 586 | |
| 587 | |
| 588 | |
| 589 // ------------------------------------------------------------------ | |
| 590 // CompileQueue::add | |
| 591 // | |
| 592 // Add a CompileTask to a CompileQueue | |
| 593 void CompileQueue::add(CompileTask* task) { | |
| 594 assert(lock()->owned_by_self(), "must own lock"); | |
| 595 | |
| 596 task->set_next(NULL); | |
| 1783 | 597 task->set_prev(NULL); |
| 0 | 598 |
| 599 if (_last == NULL) { | |
| 600 // The compile queue is empty. | |
| 601 assert(_first == NULL, "queue is empty"); | |
| 602 _first = task; | |
| 603 _last = task; | |
| 604 } else { | |
| 605 // Append the task to the queue. | |
| 606 assert(_last->next() == NULL, "not last"); | |
| 607 _last->set_next(task); | |
| 1783 | 608 task->set_prev(_last); |
| 0 | 609 _last = task; |
| 610 } | |
| 1783 | 611 ++_size; |
| 0 | 612 |
| 613 // Mark the method as being in the compile queue. | |
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614 task->method()->set_queued_for_compilation(); |
| 0 | 615 |
| 616 if (CIPrintCompileQueue) { | |
| 617 print(); | |
| 618 } | |
| 619 | |
| 620 if (LogCompilation && xtty != NULL) { | |
| 621 task->log_task_queued(); | |
| 622 } | |
| 623 | |
| 624 // Notify CompilerThreads that a task is available. | |
| 1783 | 625 lock()->notify_all(); |
| 0 | 626 } |
| 627 | |
| 628 // ------------------------------------------------------------------ | |
| 629 // CompileQueue::get | |
| 630 // | |
| 631 // Get the next CompileTask from a CompileQueue | |
| 632 CompileTask* CompileQueue::get() { | |
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633 NMethodSweeper::possibly_sweep(); |
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634 |
| 0 | 635 MutexLocker locker(lock()); |
| 636 // Wait for an available CompileTask. | |
| 637 while (_first == NULL) { | |
| 638 // There is no work to be done right now. Wait. | |
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639 if (UseCodeCacheFlushing && (!CompileBroker::should_compile_new_jobs() || CodeCache::needs_flushing())) { |
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640 // During the emergency sweeping periods, wake up and sweep occasionally |
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641 bool timedout = lock()->wait(!Mutex::_no_safepoint_check_flag, NmethodSweepCheckInterval*1000); |
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642 if (timedout) { |
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643 MutexUnlocker ul(lock()); |
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644 // When otherwise not busy, run nmethod sweeping |
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645 NMethodSweeper::possibly_sweep(); |
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646 } |
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647 } else { |
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648 // During normal operation no need to wake up on timer |
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649 lock()->wait(); |
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650 } |
| 0 | 651 } |
| 1783 | 652 CompileTask* task = CompilationPolicy::policy()->select_task(this); |
| 653 remove(task); | |
| 654 return task; | |
| 655 } | |
| 0 | 656 |
| 1783 | 657 void CompileQueue::remove(CompileTask* task) |
| 658 { | |
| 659 assert(lock()->owned_by_self(), "must own lock"); | |
| 660 if (task->prev() != NULL) { | |
| 661 task->prev()->set_next(task->next()); | |
| 662 } else { | |
| 663 // max is the first element | |
| 664 assert(task == _first, "Sanity"); | |
| 665 _first = task->next(); | |
| 0 | 666 } |
| 667 | |
| 1783 | 668 if (task->next() != NULL) { |
| 669 task->next()->set_prev(task->prev()); | |
| 670 } else { | |
| 671 // max is the last element | |
| 672 assert(task == _last, "Sanity"); | |
| 673 _last = task->prev(); | |
| 674 } | |
| 675 --_size; | |
| 0 | 676 } |
| 677 | |
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678 // methods in the compile queue need to be marked as used on the stack |
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679 // so that they don't get reclaimed by Redefine Classes |
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680 void CompileQueue::mark_on_stack() { |
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681 CompileTask* task = _first; |
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682 while (task != NULL) { |
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683 task->mark_on_stack(); |
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684 task = task->next(); |
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685 } |
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686 } |
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687 |
| 0 | 688 // ------------------------------------------------------------------ |
| 689 // CompileQueue::print | |
| 690 void CompileQueue::print() { | |
| 691 tty->print_cr("Contents of %s", name()); | |
| 692 tty->print_cr("----------------------"); | |
| 693 CompileTask* task = _first; | |
| 694 while (task != NULL) { | |
| 695 task->print_line(); | |
| 696 task = task->next(); | |
| 697 } | |
| 698 tty->print_cr("----------------------"); | |
| 699 } | |
| 700 | |
| 701 CompilerCounters::CompilerCounters(const char* thread_name, int instance, TRAPS) { | |
| 702 | |
| 703 _current_method[0] = '\0'; | |
| 704 _compile_type = CompileBroker::no_compile; | |
| 705 | |
| 706 if (UsePerfData) { | |
| 707 ResourceMark rm; | |
| 708 | |
| 709 // create the thread instance name space string - don't create an | |
| 710 // instance subspace if instance is -1 - keeps the adapterThread | |
| 711 // counters from having a ".0" namespace. | |
| 712 const char* thread_i = (instance == -1) ? thread_name : | |
| 713 PerfDataManager::name_space(thread_name, instance); | |
| 714 | |
| 715 | |
| 716 char* name = PerfDataManager::counter_name(thread_i, "method"); | |
| 717 _perf_current_method = | |
| 718 PerfDataManager::create_string_variable(SUN_CI, name, | |
| 719 cmname_buffer_length, | |
| 720 _current_method, CHECK); | |
| 721 | |
| 722 name = PerfDataManager::counter_name(thread_i, "type"); | |
| 723 _perf_compile_type = PerfDataManager::create_variable(SUN_CI, name, | |
| 724 PerfData::U_None, | |
| 725 (jlong)_compile_type, | |
| 726 CHECK); | |
| 727 | |
| 728 name = PerfDataManager::counter_name(thread_i, "time"); | |
| 729 _perf_time = PerfDataManager::create_counter(SUN_CI, name, | |
| 730 PerfData::U_Ticks, CHECK); | |
| 731 | |
| 732 name = PerfDataManager::counter_name(thread_i, "compiles"); | |
| 733 _perf_compiles = PerfDataManager::create_counter(SUN_CI, name, | |
| 734 PerfData::U_Events, CHECK); | |
| 735 } | |
| 736 } | |
| 737 | |
| 738 // ------------------------------------------------------------------ | |
| 739 // CompileBroker::compilation_init | |
| 740 // | |
| 741 // Initialize the Compilation object | |
| 742 void CompileBroker::compilation_init() { | |
| 743 _last_method_compiled[0] = '\0'; | |
| 744 | |
| 1970 | 745 #ifndef SHARK |
| 0 | 746 // Set the interface to the current compiler(s). |
| 1783 | 747 int c1_count = CompilationPolicy::policy()->compiler_count(CompLevel_simple); |
| 748 int c2_count = CompilationPolicy::policy()->compiler_count(CompLevel_full_optimization); | |
| 0 | 749 #ifdef COMPILER1 |
| 1783 | 750 if (c1_count > 0) { |
| 751 _compilers[0] = new Compiler(); | |
| 752 } | |
| 0 | 753 #endif // COMPILER1 |
| 754 | |
| 755 #ifdef COMPILER2 | |
| 1783 | 756 if (c2_count > 0) { |
| 757 _compilers[1] = new C2Compiler(); | |
| 758 } | |
| 0 | 759 #endif // COMPILER2 |
| 760 | |
| 1970 | 761 #else // SHARK |
| 762 int c1_count = 0; | |
| 763 int c2_count = 1; | |
| 764 | |
| 765 _compilers[1] = new SharkCompiler(); | |
| 766 #endif // SHARK | |
| 1692 | 767 |
| 0 | 768 // Initialize the CompileTask free list |
| 769 _task_free_list = NULL; | |
| 770 | |
| 771 // Start the CompilerThreads | |
| 1783 | 772 init_compiler_threads(c1_count, c2_count); |
| 0 | 773 // totalTime performance counter is always created as it is required |
| 774 // by the implementation of java.lang.management.CompilationMBean. | |
| 775 { | |
| 776 EXCEPTION_MARK; | |
| 777 _perf_total_compilation = | |
| 778 PerfDataManager::create_counter(JAVA_CI, "totalTime", | |
| 779 PerfData::U_Ticks, CHECK); | |
| 780 } | |
| 781 | |
| 782 | |
| 783 if (UsePerfData) { | |
| 784 | |
| 785 EXCEPTION_MARK; | |
| 786 | |
| 787 // create the jvmstat performance counters | |
| 788 _perf_osr_compilation = | |
| 789 PerfDataManager::create_counter(SUN_CI, "osrTime", | |
| 790 PerfData::U_Ticks, CHECK); | |
| 791 | |
| 792 _perf_standard_compilation = | |
| 793 PerfDataManager::create_counter(SUN_CI, "standardTime", | |
| 794 PerfData::U_Ticks, CHECK); | |
| 795 | |
| 796 _perf_total_bailout_count = | |
| 797 PerfDataManager::create_counter(SUN_CI, "totalBailouts", | |
| 798 PerfData::U_Events, CHECK); | |
| 799 | |
| 800 _perf_total_invalidated_count = | |
| 801 PerfDataManager::create_counter(SUN_CI, "totalInvalidates", | |
| 802 PerfData::U_Events, CHECK); | |
| 803 | |
| 804 _perf_total_compile_count = | |
| 805 PerfDataManager::create_counter(SUN_CI, "totalCompiles", | |
| 806 PerfData::U_Events, CHECK); | |
| 807 _perf_total_osr_compile_count = | |
| 808 PerfDataManager::create_counter(SUN_CI, "osrCompiles", | |
| 809 PerfData::U_Events, CHECK); | |
| 810 | |
| 811 _perf_total_standard_compile_count = | |
| 812 PerfDataManager::create_counter(SUN_CI, "standardCompiles", | |
| 813 PerfData::U_Events, CHECK); | |
| 814 | |
| 815 _perf_sum_osr_bytes_compiled = | |
| 816 PerfDataManager::create_counter(SUN_CI, "osrBytes", | |
| 817 PerfData::U_Bytes, CHECK); | |
| 818 | |
| 819 _perf_sum_standard_bytes_compiled = | |
| 820 PerfDataManager::create_counter(SUN_CI, "standardBytes", | |
| 821 PerfData::U_Bytes, CHECK); | |
| 822 | |
| 823 _perf_sum_nmethod_size = | |
| 824 PerfDataManager::create_counter(SUN_CI, "nmethodSize", | |
| 825 PerfData::U_Bytes, CHECK); | |
| 826 | |
| 827 _perf_sum_nmethod_code_size = | |
| 828 PerfDataManager::create_counter(SUN_CI, "nmethodCodeSize", | |
| 829 PerfData::U_Bytes, CHECK); | |
| 830 | |
| 831 _perf_last_method = | |
| 832 PerfDataManager::create_string_variable(SUN_CI, "lastMethod", | |
| 833 CompilerCounters::cmname_buffer_length, | |
| 834 "", CHECK); | |
| 835 | |
| 836 _perf_last_failed_method = | |
| 837 PerfDataManager::create_string_variable(SUN_CI, "lastFailedMethod", | |
| 838 CompilerCounters::cmname_buffer_length, | |
| 839 "", CHECK); | |
| 840 | |
| 841 _perf_last_invalidated_method = | |
| 842 PerfDataManager::create_string_variable(SUN_CI, "lastInvalidatedMethod", | |
| 843 CompilerCounters::cmname_buffer_length, | |
| 844 "", CHECK); | |
| 845 | |
| 846 _perf_last_compile_type = | |
| 847 PerfDataManager::create_variable(SUN_CI, "lastType", | |
| 848 PerfData::U_None, | |
| 849 (jlong)CompileBroker::no_compile, | |
| 850 CHECK); | |
| 851 | |
| 852 _perf_last_compile_size = | |
| 853 PerfDataManager::create_variable(SUN_CI, "lastSize", | |
| 854 PerfData::U_Bytes, | |
| 855 (jlong)CompileBroker::no_compile, | |
| 856 CHECK); | |
| 857 | |
| 858 | |
| 859 _perf_last_failed_type = | |
| 860 PerfDataManager::create_variable(SUN_CI, "lastFailedType", | |
| 861 PerfData::U_None, | |
| 862 (jlong)CompileBroker::no_compile, | |
| 863 CHECK); | |
| 864 | |
| 865 _perf_last_invalidated_type = | |
| 866 PerfDataManager::create_variable(SUN_CI, "lastInvalidatedType", | |
| 867 PerfData::U_None, | |
| 868 (jlong)CompileBroker::no_compile, | |
| 869 CHECK); | |
| 870 } | |
| 871 | |
| 872 _initialized = true; | |
| 873 } | |
| 874 | |
| 875 | |
| 876 | |
| 877 // ------------------------------------------------------------------ | |
| 878 // CompileBroker::make_compiler_thread | |
| 879 CompilerThread* CompileBroker::make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS) { | |
| 880 CompilerThread* compiler_thread = NULL; | |
| 881 | |
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882 Klass* k = |
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883 SystemDictionary::resolve_or_fail(vmSymbols::java_lang_Thread(), |
| 0 | 884 true, CHECK_0); |
| 885 instanceKlassHandle klass (THREAD, k); | |
| 886 instanceHandle thread_oop = klass->allocate_instance_handle(CHECK_0); | |
| 887 Handle string = java_lang_String::create_from_str(name, CHECK_0); | |
| 888 | |
| 889 // Initialize thread_oop to put it into the system threadGroup | |
| 890 Handle thread_group (THREAD, Universe::system_thread_group()); | |
| 891 JavaValue result(T_VOID); | |
| 892 JavaCalls::call_special(&result, thread_oop, | |
| 893 klass, | |
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894 vmSymbols::object_initializer_name(), |
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895 vmSymbols::threadgroup_string_void_signature(), |
| 0 | 896 thread_group, |
| 897 string, | |
| 898 CHECK_0); | |
| 899 | |
| 900 { | |
| 901 MutexLocker mu(Threads_lock, THREAD); | |
| 902 compiler_thread = new CompilerThread(queue, counters); | |
| 903 // At this point the new CompilerThread data-races with this startup | |
| 904 // thread (which I believe is the primoridal thread and NOT the VM | |
| 905 // thread). This means Java bytecodes being executed at startup can | |
| 906 // queue compile jobs which will run at whatever default priority the | |
| 907 // newly created CompilerThread runs at. | |
| 908 | |
| 909 | |
| 910 // At this point it may be possible that no osthread was created for the | |
| 911 // JavaThread due to lack of memory. We would have to throw an exception | |
| 912 // in that case. However, since this must work and we do not allow | |
| 913 // exceptions anyway, check and abort if this fails. | |
| 914 | |
| 915 if (compiler_thread == NULL || compiler_thread->osthread() == NULL){ | |
| 916 vm_exit_during_initialization("java.lang.OutOfMemoryError", | |
| 917 "unable to create new native thread"); | |
| 918 } | |
| 919 | |
| 920 java_lang_Thread::set_thread(thread_oop(), compiler_thread); | |
| 921 | |
| 922 // Note that this only sets the JavaThread _priority field, which by | |
| 923 // definition is limited to Java priorities and not OS priorities. | |
| 924 // The os-priority is set in the CompilerThread startup code itself | |
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925 |
| 0 | 926 java_lang_Thread::set_priority(thread_oop(), NearMaxPriority); |
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927 |
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928 // Note that we cannot call os::set_priority because it expects Java |
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929 // priorities and we are *explicitly* using OS priorities so that it's |
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930 // possible to set the compiler thread priority higher than any Java |
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931 // thread. |
| 0 | 932 |
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933 int native_prio = CompilerThreadPriority; |
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934 if (native_prio == -1) { |
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935 if (UseCriticalCompilerThreadPriority) { |
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936 native_prio = os::java_to_os_priority[CriticalPriority]; |
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937 } else { |
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938 native_prio = os::java_to_os_priority[NearMaxPriority]; |
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939 } |
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940 } |
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941 os::set_native_priority(compiler_thread, native_prio); |
| 0 | 942 |
| 943 java_lang_Thread::set_daemon(thread_oop()); | |
| 944 | |
| 945 compiler_thread->set_threadObj(thread_oop()); | |
| 946 Threads::add(compiler_thread); | |
| 947 Thread::start(compiler_thread); | |
| 948 } | |
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949 |
| 0 | 950 // Let go of Threads_lock before yielding |
| 951 os::yield(); // make sure that the compiler thread is started early (especially helpful on SOLARIS) | |
| 952 | |
| 953 return compiler_thread; | |
| 954 } | |
| 955 | |
| 956 | |
| 957 // ------------------------------------------------------------------ | |
| 958 // CompileBroker::init_compiler_threads | |
| 959 // | |
| 960 // Initialize the compilation queue | |
| 1783 | 961 void CompileBroker::init_compiler_threads(int c1_compiler_count, int c2_compiler_count) { |
| 0 | 962 EXCEPTION_MARK; |
| 2447 | 963 #if !defined(ZERO) && !defined(SHARK) |
| 1783 | 964 assert(c2_compiler_count > 0 || c1_compiler_count > 0, "No compilers?"); |
| 2447 | 965 #endif // !ZERO && !SHARK |
| 1783 | 966 if (c2_compiler_count > 0) { |
| 967 _c2_method_queue = new CompileQueue("C2MethodQueue", MethodCompileQueue_lock); | |
| 968 } | |
| 969 if (c1_compiler_count > 0) { | |
| 970 _c1_method_queue = new CompileQueue("C1MethodQueue", MethodCompileQueue_lock); | |
| 971 } | |
| 0 | 972 |
| 1783 | 973 int compiler_count = c1_compiler_count + c2_compiler_count; |
| 974 | |
| 0 | 975 _method_threads = |
| 6197 | 976 new (ResourceObj::C_HEAP, mtCompiler) GrowableArray<CompilerThread*>(compiler_count, true); |
| 0 | 977 |
| 978 char name_buffer[256]; | |
| 1783 | 979 for (int i = 0; i < c2_compiler_count; i++) { |
| 0 | 980 // Create a name for our thread. |
| 1783 | 981 sprintf(name_buffer, "C2 CompilerThread%d", i); |
| 0 | 982 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); |
| 1783 | 983 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c2_method_queue, counters, CHECK); |
| 0 | 984 _method_threads->append(new_thread); |
| 985 } | |
| 1783 | 986 |
| 987 for (int i = c2_compiler_count; i < compiler_count; i++) { | |
| 988 // Create a name for our thread. | |
| 989 sprintf(name_buffer, "C1 CompilerThread%d", i); | |
| 990 CompilerCounters* counters = new CompilerCounters("compilerThread", i, CHECK); | |
| 991 CompilerThread* new_thread = make_compiler_thread(name_buffer, _c1_method_queue, counters, CHECK); | |
| 992 _method_threads->append(new_thread); | |
| 993 } | |
| 994 | |
| 0 | 995 if (UsePerfData) { |
| 996 PerfDataManager::create_constant(SUN_CI, "threads", PerfData::U_Bytes, | |
| 997 compiler_count, CHECK); | |
| 998 } | |
| 999 } | |
| 1000 | |
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1001 |
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1002 // Set the methods on the stack as on_stack so that redefine classes doesn't |
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1003 // reclaim them |
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1004 void CompileBroker::mark_on_stack() { |
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1005 if (_c2_method_queue != NULL) { |
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1006 _c2_method_queue->mark_on_stack(); |
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1007 } |
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1008 if (_c1_method_queue != NULL) { |
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1009 _c1_method_queue->mark_on_stack(); |
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1010 } |
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1011 } |
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1012 |
| 0 | 1013 // ------------------------------------------------------------------ |
| 1014 // CompileBroker::is_idle | |
| 1015 bool CompileBroker::is_idle() { | |
| 1783 | 1016 if (_c2_method_queue != NULL && !_c2_method_queue->is_empty()) { |
| 1017 return false; | |
| 1018 } else if (_c1_method_queue != NULL && !_c1_method_queue->is_empty()) { | |
| 0 | 1019 return false; |
| 1020 } else { | |
| 1021 int num_threads = _method_threads->length(); | |
| 1022 for (int i=0; i<num_threads; i++) { | |
| 1023 if (_method_threads->at(i)->task() != NULL) { | |
| 1024 return false; | |
| 1025 } | |
| 1026 } | |
| 1027 | |
| 1028 // No pending or active compilations. | |
| 1029 return true; | |
| 1030 } | |
| 1031 } | |
| 1032 | |
| 1033 | |
| 1034 // ------------------------------------------------------------------ | |
| 1035 // CompileBroker::compile_method | |
| 1036 // | |
| 1037 // Request compilation of a method. | |
| 1038 void CompileBroker::compile_method_base(methodHandle method, | |
| 1039 int osr_bci, | |
| 1040 int comp_level, | |
| 1041 methodHandle hot_method, | |
| 1042 int hot_count, | |
| 1043 const char* comment, | |
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1044 Thread* thread) { |
| 0 | 1045 // do nothing if compiler thread(s) is not available |
| 1046 if (!_initialized ) { | |
| 1047 return; | |
| 1048 } | |
| 1049 | |
| 1050 guarantee(!method->is_abstract(), "cannot compile abstract methods"); | |
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1051 assert(method->method_holder()->oop_is_instance(), |
| 0 | 1052 "sanity check"); |
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1053 assert(!method->method_holder()->is_not_initialized(), |
| 0 | 1054 "method holder must be initialized"); |
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1055 assert(!method->is_method_handle_intrinsic(), "do not enqueue these guys"); |
| 0 | 1056 |
| 1057 if (CIPrintRequests) { | |
| 1058 tty->print("request: "); | |
| 1059 method->print_short_name(tty); | |
| 1060 if (osr_bci != InvocationEntryBci) { | |
| 1061 tty->print(" osr_bci: %d", osr_bci); | |
| 1062 } | |
| 1063 tty->print(" comment: %s count: %d", comment, hot_count); | |
| 1064 if (!hot_method.is_null()) { | |
| 1065 tty->print(" hot: "); | |
| 1066 if (hot_method() != method()) { | |
| 1067 hot_method->print_short_name(tty); | |
| 1068 } else { | |
| 1069 tty->print("yes"); | |
| 1070 } | |
| 1071 } | |
| 1072 tty->cr(); | |
| 1073 } | |
| 1074 | |
| 1075 // A request has been made for compilation. Before we do any | |
| 1076 // real work, check to see if the method has been compiled | |
| 1077 // in the meantime with a definitive result. | |
| 1078 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1079 return; | |
| 1080 } | |
| 1081 | |
| 2403 | 1082 #ifndef PRODUCT |
| 1083 if (osr_bci != -1 && !FLAG_IS_DEFAULT(OSROnlyBCI)) { | |
| 1084 if ((OSROnlyBCI > 0) ? (OSROnlyBCI != osr_bci) : (-OSROnlyBCI == osr_bci)) { | |
| 1085 // Positive OSROnlyBCI means only compile that bci. Negative means don't compile that BCI. | |
| 1086 return; | |
| 1087 } | |
| 1088 } | |
| 1089 #endif | |
| 1783 | 1090 |
| 0 | 1091 // If this method is already in the compile queue, then |
| 1092 // we do not block the current thread. | |
| 1093 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1094 // We may want to decay our counter a bit here to prevent | |
| 1095 // multiple denied requests for compilation. This is an | |
| 1096 // open compilation policy issue. Note: The other possibility, | |
| 1097 // in the case that this is a blocking compile request, is to have | |
| 1098 // all subsequent blocking requesters wait for completion of | |
| 1099 // ongoing compiles. Note that in this case we'll need a protocol | |
| 1100 // for freeing the associated compile tasks. [Or we could have | |
| 1101 // a single static monitor on which all these waiters sleep.] | |
| 1102 return; | |
| 1103 } | |
| 1104 | |
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1105 // If the requesting thread is holding the pending list lock |
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1106 // then we just return. We can't risk blocking while holding |
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1107 // the pending list lock or a 3-way deadlock may occur |
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1108 // between the reference handler thread, a GC (instigated |
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1109 // by a compiler thread), and compiled method registration. |
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1110 if (InstanceRefKlass::owns_pending_list_lock(JavaThread::current())) { |
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1111 return; |
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1112 } |
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1113 |
| 0 | 1114 // Outputs from the following MutexLocker block: |
| 1115 CompileTask* task = NULL; | |
| 1116 bool blocking = false; | |
| 1783 | 1117 CompileQueue* queue = compile_queue(comp_level); |
| 0 | 1118 |
| 1119 // Acquire our lock. | |
| 1120 { | |
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1121 MutexLocker locker(queue->lock(), thread); |
| 0 | 1122 |
| 1123 // Make sure the method has not slipped into the queues since | |
| 1124 // last we checked; note that those checks were "fast bail-outs". | |
| 1125 // Here we need to be more careful, see 14012000 below. | |
| 1126 if (compilation_is_in_queue(method, osr_bci)) { | |
| 1127 return; | |
| 1128 } | |
| 1129 | |
| 1130 // We need to check again to see if the compilation has | |
| 1131 // completed. A previous compilation may have registered | |
| 1132 // some result. | |
| 1133 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1134 return; | |
| 1135 } | |
| 1136 | |
| 1137 // We now know that this compilation is not pending, complete, | |
| 1138 // or prohibited. Assign a compile_id to this compilation | |
| 1139 // and check to see if it is in our [Start..Stop) range. | |
| 1140 uint compile_id = assign_compile_id(method, osr_bci); | |
| 1141 if (compile_id == 0) { | |
| 1142 // The compilation falls outside the allowed range. | |
| 1143 return; | |
| 1144 } | |
| 1145 | |
| 1146 // Should this thread wait for completion of the compile? | |
| 1147 blocking = is_compile_blocking(method, osr_bci); | |
| 1148 | |
| 1149 // We will enter the compilation in the queue. | |
| 1150 // 14012000: Note that this sets the queued_for_compile bits in | |
| 1151 // the target method. We can now reason that a method cannot be | |
| 1152 // queued for compilation more than once, as follows: | |
| 1153 // Before a thread queues a task for compilation, it first acquires | |
| 1154 // the compile queue lock, then checks if the method's queued bits | |
| 1155 // are set or it has already been compiled. Thus there can not be two | |
| 1156 // instances of a compilation task for the same method on the | |
| 1157 // compilation queue. Consider now the case where the compilation | |
| 1158 // thread has already removed a task for that method from the queue | |
| 1159 // and is in the midst of compiling it. In this case, the | |
| 1160 // queued_for_compile bits must be set in the method (and these | |
| 1161 // will be visible to the current thread, since the bits were set | |
| 1162 // under protection of the compile queue lock, which we hold now. | |
| 1163 // When the compilation completes, the compiler thread first sets | |
| 1164 // the compilation result and then clears the queued_for_compile | |
| 1165 // bits. Neither of these actions are protected by a barrier (or done | |
| 1166 // under the protection of a lock), so the only guarantee we have | |
| 1167 // (on machines with TSO (Total Store Order)) is that these values | |
| 1168 // will update in that order. As a result, the only combinations of | |
| 1169 // these bits that the current thread will see are, in temporal order: | |
| 1170 // <RESULT, QUEUE> : | |
| 1171 // <0, 1> : in compile queue, but not yet compiled | |
| 1172 // <1, 1> : compiled but queue bit not cleared | |
| 1173 // <1, 0> : compiled and queue bit cleared | |
| 1174 // Because we first check the queue bits then check the result bits, | |
| 1175 // we are assured that we cannot introduce a duplicate task. | |
| 1176 // Note that if we did the tests in the reverse order (i.e. check | |
| 1177 // result then check queued bit), we could get the result bit before | |
| 1178 // the compilation completed, and the queue bit after the compilation | |
| 1179 // completed, and end up introducing a "duplicate" (redundant) task. | |
| 1180 // In that case, the compiler thread should first check if a method | |
| 1181 // has already been compiled before trying to compile it. | |
| 1182 // NOTE: in the event that there are multiple compiler threads and | |
| 1183 // there is de-optimization/recompilation, things will get hairy, | |
| 1184 // and in that case it's best to protect both the testing (here) of | |
| 1185 // these bits, and their updating (here and elsewhere) under a | |
| 1186 // common lock. | |
| 1783 | 1187 task = create_compile_task(queue, |
| 0 | 1188 compile_id, method, |
| 1189 osr_bci, comp_level, | |
| 1190 hot_method, hot_count, comment, | |
| 1191 blocking); | |
| 1192 } | |
| 1193 | |
| 1194 if (blocking) { | |
| 1195 wait_for_completion(task); | |
| 1196 } | |
| 1197 } | |
| 1198 | |
| 1199 | |
| 1200 nmethod* CompileBroker::compile_method(methodHandle method, int osr_bci, | |
| 1783 | 1201 int comp_level, |
| 0 | 1202 methodHandle hot_method, int hot_count, |
|
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1203 const char* comment, Thread* THREAD) { |
| 0 | 1204 // make sure arguments make sense |
|
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1205 assert(method->method_holder()->oop_is_instance(), "not an instance method"); |
| 0 | 1206 assert(osr_bci == InvocationEntryBci || (0 <= osr_bci && osr_bci < method->code_size()), "bci out of range"); |
| 1207 assert(!method->is_abstract() && (osr_bci == InvocationEntryBci || !method->is_native()), "cannot compile abstract/native methods"); | |
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1208 assert(!method->method_holder()->is_not_initialized(), "method holder must be initialized"); |
| 0 | 1209 |
| 1783 | 1210 if (!TieredCompilation) { |
| 1211 comp_level = CompLevel_highest_tier; | |
| 0 | 1212 } |
| 1213 | |
| 1214 // return quickly if possible | |
| 1215 | |
| 1216 // lock, make sure that the compilation | |
| 1217 // isn't prohibited in a straightforward way. | |
|
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1218 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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1219 if (comp == NULL || !comp->can_compile_method(method) || |
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1220 compilation_is_prohibited(method, osr_bci, comp_level)) { |
| 0 | 1221 return NULL; |
| 1222 } | |
| 1223 | |
| 1224 if (osr_bci == InvocationEntryBci) { | |
| 1225 // standard compilation | |
| 1226 nmethod* method_code = method->code(); | |
| 1783 | 1227 if (method_code != NULL) { |
| 1228 if (compilation_is_complete(method, osr_bci, comp_level)) { | |
| 1229 return method_code; | |
| 1230 } | |
| 0 | 1231 } |
| 1232 if (method->is_not_compilable(comp_level)) return NULL; | |
| 1202 | 1233 |
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1234 if (UseCodeCacheFlushing) { |
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1235 nmethod* saved = CodeCache::find_and_remove_saved_code(method()); |
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1236 if (saved != NULL) { |
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1237 method->set_code(method, saved); |
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1238 return saved; |
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1239 } |
| 1202 | 1240 } |
| 1241 | |
| 0 | 1242 } else { |
| 1243 // osr compilation | |
| 1244 #ifndef TIERED | |
| 1245 // seems like an assert of dubious value | |
| 1783 | 1246 assert(comp_level == CompLevel_highest_tier, |
| 0 | 1247 "all OSR compiles are assumed to be at a single compilation lavel"); |
| 1248 #endif // TIERED | |
| 1783 | 1249 // We accept a higher level osr method |
| 1250 nmethod* nm = method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1251 if (nm != NULL) return nm; |
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1252 if (method->is_not_osr_compilable(comp_level)) return NULL; |
| 0 | 1253 } |
| 1254 | |
| 1255 assert(!HAS_PENDING_EXCEPTION, "No exception should be present"); | |
| 1256 // some prerequisites that are compiler specific | |
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1257 if (comp->is_c2() || comp->is_shark()) { |
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1258 method->constants()->resolve_string_constants(CHECK_AND_CLEAR_NULL); |
| 0 | 1259 // Resolve all classes seen in the signature of the method |
| 1260 // we are compiling. | |
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1261 Method::load_signature_classes(method, CHECK_AND_CLEAR_NULL); |
| 0 | 1262 } |
| 1263 | |
| 1264 // If the method is native, do the lookup in the thread requesting | |
| 1265 // the compilation. Native lookups can load code, which is not | |
| 1266 // permitted during compilation. | |
| 1267 // | |
| 1268 // Note: A native method implies non-osr compilation which is | |
| 1269 // checked with an assertion at the entry of this method. | |
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1270 if (method->is_native() && !method->is_method_handle_intrinsic()) { |
| 0 | 1271 bool in_base_library; |
| 1272 address adr = NativeLookup::lookup(method, in_base_library, THREAD); | |
| 1273 if (HAS_PENDING_EXCEPTION) { | |
| 1274 // In case of an exception looking up the method, we just forget | |
| 1275 // about it. The interpreter will kick-in and throw the exception. | |
| 1276 method->set_not_compilable(); // implies is_not_osr_compilable() | |
| 1277 CLEAR_PENDING_EXCEPTION; | |
| 1278 return NULL; | |
| 1279 } | |
| 1280 assert(method->has_native_function(), "must have native code by now"); | |
| 1281 } | |
| 1282 | |
| 1283 // RedefineClasses() has replaced this method; just return | |
| 1284 if (method->is_old()) { | |
| 1285 return NULL; | |
| 1286 } | |
| 1287 | |
| 1288 // JVMTI -- post_compile_event requires jmethod_id() that may require | |
| 1289 // a lock the compiling thread can not acquire. Prefetch it here. | |
| 1290 if (JvmtiExport::should_post_compiled_method_load()) { | |
| 1291 method->jmethod_id(); | |
| 1292 } | |
| 1293 | |
| 1202 | 1294 // If the compiler is shut off due to code cache flushing or otherwise, |
| 1295 // fail out now so blocking compiles dont hang the java thread | |
| 1296 if (!should_compile_new_jobs() || (UseCodeCacheFlushing && CodeCache::needs_flushing())) { | |
| 1783 | 1297 CompilationPolicy::policy()->delay_compilation(method()); |
| 1202 | 1298 return NULL; |
| 1299 } | |
| 1300 | |
| 0 | 1301 // do the compilation |
| 1302 if (method->is_native()) { | |
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1303 if (!PreferInterpreterNativeStubs || method->is_method_handle_intrinsic()) { |
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1304 // Acquire our lock. |
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1305 int compile_id; |
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1306 { |
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1307 MutexLocker locker(MethodCompileQueue_lock, THREAD); |
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1308 compile_id = assign_compile_id(method, standard_entry_bci); |
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1309 } |
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1310 (void) AdapterHandlerLibrary::create_native_wrapper(method, compile_id); |
| 0 | 1311 } else { |
| 1312 return NULL; | |
| 1313 } | |
| 1314 } else { | |
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1315 compile_method_base(method, osr_bci, comp_level, hot_method, hot_count, comment, THREAD); |
| 0 | 1316 } |
| 1317 | |
| 1318 // return requested nmethod | |
| 1783 | 1319 // We accept a higher level osr method |
| 1320 return osr_bci == InvocationEntryBci ? method->code() : method->lookup_osr_nmethod_for(osr_bci, comp_level, false); | |
| 0 | 1321 } |
| 1322 | |
| 1323 | |
| 1324 // ------------------------------------------------------------------ | |
| 1325 // CompileBroker::compilation_is_complete | |
| 1326 // | |
| 1327 // See if compilation of this method is already complete. | |
| 1328 bool CompileBroker::compilation_is_complete(methodHandle method, | |
| 1329 int osr_bci, | |
| 1330 int comp_level) { | |
| 1331 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1332 if (is_osr) { | |
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1333 if (method->is_not_osr_compilable(comp_level)) { |
| 0 | 1334 return true; |
| 1335 } else { | |
| 1783 | 1336 nmethod* result = method->lookup_osr_nmethod_for(osr_bci, comp_level, true); |
| 0 | 1337 return (result != NULL); |
| 1338 } | |
| 1339 } else { | |
| 1340 if (method->is_not_compilable(comp_level)) { | |
| 1341 return true; | |
| 1342 } else { | |
| 1343 nmethod* result = method->code(); | |
| 1344 if (result == NULL) return false; | |
| 1783 | 1345 return comp_level == result->comp_level(); |
| 0 | 1346 } |
| 1347 } | |
| 1348 } | |
| 1349 | |
| 1350 | |
| 1351 // ------------------------------------------------------------------ | |
| 1352 // CompileBroker::compilation_is_in_queue | |
| 1353 // | |
| 1354 // See if this compilation is already requested. | |
| 1355 // | |
| 1356 // Implementation note: there is only a single "is in queue" bit | |
| 1357 // for each method. This means that the check below is overly | |
| 1358 // conservative in the sense that an osr compilation in the queue | |
| 1359 // will block a normal compilation from entering the queue (and vice | |
| 1360 // versa). This can be remedied by a full queue search to disambiguate | |
| 1361 // cases. If it is deemed profitible, this may be done. | |
| 1362 bool CompileBroker::compilation_is_in_queue(methodHandle method, | |
| 1783 | 1363 int osr_bci) { |
| 0 | 1364 return method->queued_for_compilation(); |
| 1365 } | |
| 1366 | |
| 1367 // ------------------------------------------------------------------ | |
| 1368 // CompileBroker::compilation_is_prohibited | |
| 1369 // | |
| 1370 // See if this compilation is not allowed. | |
| 1371 bool CompileBroker::compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level) { | |
| 1372 bool is_native = method->is_native(); | |
| 1373 // Some compilers may not support the compilation of natives. | |
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1374 AbstractCompiler *comp = compiler(comp_level); |
| 0 | 1375 if (is_native && |
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1376 (!CICompileNatives || comp == NULL || !comp->supports_native())) { |
| 1783 | 1377 method->set_not_compilable_quietly(comp_level); |
| 0 | 1378 return true; |
| 1379 } | |
| 1380 | |
| 1381 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1382 // Some compilers may not support on stack replacement. | |
| 1383 if (is_osr && | |
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1384 (!CICompileOSR || comp == NULL || !comp->supports_osr())) { |
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1385 method->set_not_osr_compilable(comp_level); |
| 0 | 1386 return true; |
| 1387 } | |
| 1388 | |
| 1389 // The method may be explicitly excluded by the user. | |
| 1390 bool quietly; | |
| 1391 if (CompilerOracle::should_exclude(method, quietly)) { | |
| 1392 if (!quietly) { | |
| 1393 // This does not happen quietly... | |
| 1394 ResourceMark rm; | |
| 1395 tty->print("### Excluding %s:%s", | |
| 1396 method->is_native() ? "generation of native wrapper" : "compile", | |
| 1397 (method->is_static() ? " static" : "")); | |
| 1398 method->print_short_name(tty); | |
| 1399 tty->cr(); | |
| 1400 } | |
| 7998 | 1401 method->set_not_compilable(CompLevel_all, !quietly, "excluded by CompilerOracle"); |
| 0 | 1402 } |
| 1403 | |
| 1404 return false; | |
| 1405 } | |
| 1406 | |
| 1407 | |
| 1408 // ------------------------------------------------------------------ | |
| 1409 // CompileBroker::assign_compile_id | |
| 1410 // | |
| 1411 // Assign a serialized id number to this compilation request. If the | |
| 1412 // number falls out of the allowed range, return a 0. OSR | |
| 1413 // compilations may be numbered separately from regular compilations | |
| 1414 // if certain debugging flags are used. | |
| 1415 uint CompileBroker::assign_compile_id(methodHandle method, int osr_bci) { | |
| 1783 | 1416 assert(MethodCompileQueue_lock->owner() == Thread::current(), |
| 0 | 1417 "must hold the compilation queue lock"); |
| 1418 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1419 uint id; | |
| 1420 if (CICountOSR && is_osr) { | |
| 1421 id = ++_osr_compilation_id; | |
| 1422 if ((uint)CIStartOSR <= id && id < (uint)CIStopOSR) { | |
| 1423 return id; | |
| 1424 } | |
| 1425 } else { | |
| 1426 id = ++_compilation_id; | |
| 1427 if ((uint)CIStart <= id && id < (uint)CIStop) { | |
| 1428 return id; | |
| 1429 } | |
| 1430 } | |
| 1431 | |
| 1432 // Method was not in the appropriate compilation range. | |
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1433 method->set_not_compilable_quietly(); |
| 0 | 1434 return 0; |
| 1435 } | |
| 1436 | |
| 1437 | |
| 1438 // ------------------------------------------------------------------ | |
| 1439 // CompileBroker::is_compile_blocking | |
| 1440 // | |
| 1441 // Should the current thread be blocked until this compilation request | |
| 1442 // has been fulfilled? | |
| 1443 bool CompileBroker::is_compile_blocking(methodHandle method, int osr_bci) { | |
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1444 assert(!InstanceRefKlass::owns_pending_list_lock(JavaThread::current()), "possible deadlock"); |
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1445 return !BackgroundCompilation; |
| 0 | 1446 } |
| 1447 | |
| 1448 | |
| 1449 // ------------------------------------------------------------------ | |
| 1450 // CompileBroker::preload_classes | |
| 1451 void CompileBroker::preload_classes(methodHandle method, TRAPS) { | |
| 1452 // Move this code over from c1_Compiler.cpp | |
| 1453 ShouldNotReachHere(); | |
| 1454 } | |
| 1455 | |
| 1456 | |
| 1457 // ------------------------------------------------------------------ | |
| 1458 // CompileBroker::create_compile_task | |
| 1459 // | |
| 1460 // Create a CompileTask object representing the current request for | |
| 1461 // compilation. Add this task to the queue. | |
| 1462 CompileTask* CompileBroker::create_compile_task(CompileQueue* queue, | |
| 1463 int compile_id, | |
| 1464 methodHandle method, | |
| 1465 int osr_bci, | |
| 1466 int comp_level, | |
| 1467 methodHandle hot_method, | |
| 1468 int hot_count, | |
| 1469 const char* comment, | |
| 1470 bool blocking) { | |
| 1471 CompileTask* new_task = allocate_task(); | |
| 1472 new_task->initialize(compile_id, method, osr_bci, comp_level, | |
| 1473 hot_method, hot_count, comment, | |
| 1474 blocking); | |
| 1475 queue->add(new_task); | |
| 1476 return new_task; | |
| 1477 } | |
| 1478 | |
| 1479 | |
| 1480 // ------------------------------------------------------------------ | |
| 1481 // CompileBroker::allocate_task | |
| 1482 // | |
| 1483 // Allocate a CompileTask, from the free list if possible. | |
| 1484 CompileTask* CompileBroker::allocate_task() { | |
| 1485 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1486 CompileTask* task = NULL; | |
| 1487 if (_task_free_list != NULL) { | |
| 1488 task = _task_free_list; | |
| 1489 _task_free_list = task->next(); | |
| 1490 task->set_next(NULL); | |
| 1491 } else { | |
| 1492 task = new CompileTask(); | |
| 1493 task->set_next(NULL); | |
| 1494 } | |
| 1495 return task; | |
| 1496 } | |
| 1497 | |
| 1498 | |
| 1499 // ------------------------------------------------------------------ | |
| 1500 // CompileBroker::free_task | |
| 1501 // | |
| 1502 // Add a task to the free list. | |
| 1503 void CompileBroker::free_task(CompileTask* task) { | |
| 1504 MutexLocker locker(CompileTaskAlloc_lock); | |
| 1505 task->free(); | |
| 1506 task->set_next(_task_free_list); | |
| 1507 _task_free_list = task; | |
| 1508 } | |
| 1509 | |
| 1510 | |
| 1511 // ------------------------------------------------------------------ | |
| 1512 // CompileBroker::wait_for_completion | |
| 1513 // | |
| 1514 // Wait for the given method CompileTask to complete. | |
| 1515 void CompileBroker::wait_for_completion(CompileTask* task) { | |
| 1516 if (CIPrintCompileQueue) { | |
| 1517 tty->print_cr("BLOCKING FOR COMPILE"); | |
| 1518 } | |
| 1519 | |
| 1520 assert(task->is_blocking(), "can only wait on blocking task"); | |
| 1521 | |
| 1522 JavaThread *thread = JavaThread::current(); | |
| 1523 thread->set_blocked_on_compilation(true); | |
| 1524 | |
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1525 methodHandle method(thread, task->method()); |
| 0 | 1526 { |
| 1527 MutexLocker waiter(task->lock(), thread); | |
| 1528 | |
| 1529 while (!task->is_complete()) | |
| 1530 task->lock()->wait(); | |
| 1531 } | |
| 1532 // It is harmless to check this status without the lock, because | |
| 1533 // completion is a stable property (until the task object is recycled). | |
| 1534 assert(task->is_complete(), "Compilation should have completed"); | |
| 1535 assert(task->code_handle() == NULL, "must be reset"); | |
| 1536 | |
| 1537 thread->set_blocked_on_compilation(false); | |
| 1538 | |
| 1539 // By convention, the waiter is responsible for recycling a | |
| 1540 // blocking CompileTask. Since there is only one waiter ever | |
| 1541 // waiting on a CompileTask, we know that no one else will | |
| 1542 // be using this CompileTask; we can free it. | |
| 1543 free_task(task); | |
| 1544 } | |
| 1545 | |
| 1546 // ------------------------------------------------------------------ | |
| 1547 // CompileBroker::compiler_thread_loop | |
| 1548 // | |
| 1549 // The main loop run by a CompilerThread. | |
| 1550 void CompileBroker::compiler_thread_loop() { | |
| 1551 CompilerThread* thread = CompilerThread::current(); | |
| 1552 CompileQueue* queue = thread->queue(); | |
| 1553 | |
| 1554 // For the thread that initializes the ciObjectFactory | |
| 1555 // this resource mark holds all the shared objects | |
| 1556 ResourceMark rm; | |
| 1557 | |
| 1558 // First thread to get here will initialize the compiler interface | |
| 1559 | |
| 1560 if (!ciObjectFactory::is_initialized()) { | |
| 1561 ASSERT_IN_VM; | |
| 1562 MutexLocker only_one (CompileThread_lock, thread); | |
| 1563 if (!ciObjectFactory::is_initialized()) { | |
| 1564 ciObjectFactory::initialize(); | |
| 1565 } | |
| 1566 } | |
| 1567 | |
| 1568 // Open a log. | |
| 1569 if (LogCompilation) { | |
| 1570 init_compiler_thread_log(); | |
| 1571 } | |
| 1572 CompileLog* log = thread->log(); | |
| 1573 if (log != NULL) { | |
| 6843 | 1574 log->begin_elem("start_compile_thread name='%s' thread='" UINTX_FORMAT "' process='%d'", |
| 1575 thread->name(), | |
| 0 | 1576 os::current_thread_id(), |
| 1577 os::current_process_id()); | |
| 1578 log->stamp(); | |
| 1579 log->end_elem(); | |
| 1580 } | |
| 1581 | |
| 1582 while (true) { | |
| 1583 { | |
| 1584 // We need this HandleMark to avoid leaking VM handles. | |
| 1585 HandleMark hm(thread); | |
| 1202 | 1586 |
|
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1587 if (CodeCache::largest_free_block() < CodeCacheMinimumFreeSpace) { |
| 1202 | 1588 // the code cache is really full |
| 1589 handle_full_code_cache(); | |
| 1590 } else if (UseCodeCacheFlushing && CodeCache::needs_flushing()) { | |
| 1591 // Attempt to start cleaning the code cache while there is still a little headroom | |
| 1592 NMethodSweeper::handle_full_code_cache(false); | |
| 0 | 1593 } |
| 1594 | |
| 1595 CompileTask* task = queue->get(); | |
| 1596 | |
| 1597 // Give compiler threads an extra quanta. They tend to be bursty and | |
| 1598 // this helps the compiler to finish up the job. | |
| 1599 if( CompilerThreadHintNoPreempt ) | |
| 1600 os::hint_no_preempt(); | |
| 1601 | |
| 1602 // trace per thread time and compile statistics | |
| 1603 CompilerCounters* counters = ((CompilerThread*)thread)->counters(); | |
| 1604 PerfTraceTimedEvent(counters->time_counter(), counters->compile_counter()); | |
| 1605 | |
| 1606 // Assign the task to the current thread. Mark this compilation | |
| 1607 // thread as active for the profiler. | |
| 1608 CompileTaskWrapper ctw(task); | |
| 1609 nmethodLocker result_handle; // (handle for the nmethod produced by this task) | |
| 1610 task->set_code_handle(&result_handle); | |
|
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1611 methodHandle method(thread, task->method()); |
| 0 | 1612 |
| 1613 // Never compile a method if breakpoints are present in it | |
| 1614 if (method()->number_of_breakpoints() == 0) { | |
| 1615 // Compile the method. | |
| 1202 | 1616 if ((UseCompiler || AlwaysCompileLoopMethods) && CompileBroker::should_compile_new_jobs()) { |
| 0 | 1617 #ifdef COMPILER1 |
| 1618 // Allow repeating compilations for the purpose of benchmarking | |
| 1619 // compile speed. This is not useful for customers. | |
| 1620 if (CompilationRepeat != 0) { | |
| 1621 int compile_count = CompilationRepeat; | |
| 1622 while (compile_count > 0) { | |
| 1623 invoke_compiler_on_method(task); | |
| 1624 nmethod* nm = method->code(); | |
| 1625 if (nm != NULL) { | |
| 1626 nm->make_zombie(); | |
| 1627 method->clear_code(); | |
| 1628 } | |
| 1629 compile_count--; | |
| 1630 } | |
| 1631 } | |
| 1632 #endif /* COMPILER1 */ | |
| 1633 invoke_compiler_on_method(task); | |
| 1634 } else { | |
| 1635 // After compilation is disabled, remove remaining methods from queue | |
| 1636 method->clear_queued_for_compilation(); | |
| 1637 } | |
| 1638 } | |
| 1639 } | |
| 1640 } | |
| 1641 } | |
| 1642 | |
| 1643 | |
| 1644 // ------------------------------------------------------------------ | |
| 1645 // CompileBroker::init_compiler_thread_log | |
| 1646 // | |
| 1647 // Set up state required by +LogCompilation. | |
| 1648 void CompileBroker::init_compiler_thread_log() { | |
| 1649 CompilerThread* thread = CompilerThread::current(); | |
| 1650 char fileBuf[4*K]; | |
| 1651 FILE* fp = NULL; | |
| 1652 char* file = NULL; | |
| 1653 intx thread_id = os::current_thread_id(); | |
| 1654 for (int try_temp_dir = 1; try_temp_dir >= 0; try_temp_dir--) { | |
| 1655 const char* dir = (try_temp_dir ? os::get_temp_directory() : NULL); | |
|
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1656 if (dir == NULL) { |
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1657 jio_snprintf(fileBuf, sizeof(fileBuf), "hs_c" UINTX_FORMAT "_pid%u.log", |
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1658 thread_id, os::current_process_id()); |
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1659 } else { |
|
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1660 jio_snprintf(fileBuf, sizeof(fileBuf), |
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1661 "%s%shs_c" UINTX_FORMAT "_pid%u.log", dir, |
|
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1662 os::file_separator(), thread_id, os::current_process_id()); |
|
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|
1663 } |
| 0 | 1664 fp = fopen(fileBuf, "at"); |
| 1665 if (fp != NULL) { | |
| 6197 | 1666 file = NEW_C_HEAP_ARRAY(char, strlen(fileBuf)+1, mtCompiler); |
| 0 | 1667 strcpy(file, fileBuf); |
| 1668 break; | |
| 1669 } | |
| 1670 } | |
| 1671 if (fp == NULL) { | |
| 1672 warning("Cannot open log file: %s", fileBuf); | |
| 1673 } else { | |
| 1674 if (LogCompilation && Verbose) | |
| 1675 tty->print_cr("Opening compilation log %s", file); | |
| 6197 | 1676 CompileLog* log = new(ResourceObj::C_HEAP, mtCompiler) CompileLog(file, fp, thread_id); |
| 0 | 1677 thread->init_log(log); |
| 1678 | |
| 1679 if (xtty != NULL) { | |
| 1680 ttyLocker ttyl; | |
| 1681 | |
| 1682 // Record any per thread log files | |
| 1683 xtty->elem("thread_logfile thread='%d' filename='%s'", thread_id, file); | |
| 1684 } | |
| 1685 } | |
| 1686 } | |
| 1687 | |
| 1688 // ------------------------------------------------------------------ | |
| 1689 // CompileBroker::set_should_block | |
| 1690 // | |
| 1691 // Set _should_block. | |
| 1692 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
| 1693 void CompileBroker::set_should_block() { | |
| 1694 assert(Threads_lock->owner() == Thread::current(), "must have threads lock"); | |
| 1695 assert(SafepointSynchronize::is_at_safepoint(), "must be at a safepoint already"); | |
| 1696 #ifndef PRODUCT | |
| 1697 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1698 tty->print_cr("notifying compiler thread pool to block"); | |
| 1699 #endif | |
| 1700 _should_block = true; | |
| 1701 } | |
| 1702 | |
| 1703 // ------------------------------------------------------------------ | |
| 1704 // CompileBroker::maybe_block | |
| 1705 // | |
| 1706 // Call this from the compiler at convenient points, to poll for _should_block. | |
| 1707 void CompileBroker::maybe_block() { | |
| 1708 if (_should_block) { | |
| 1709 #ifndef PRODUCT | |
| 1710 if (PrintCompilation && (Verbose || WizardMode)) | |
| 1711 tty->print_cr("compiler thread " INTPTR_FORMAT " poll detects block request", Thread::current()); | |
| 1712 #endif | |
| 1713 ThreadInVMfromNative tivfn(JavaThread::current()); | |
| 1714 } | |
| 1715 } | |
| 1716 | |
|
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1717 // wrapper for CodeCache::print_summary() |
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1718 static void codecache_print(bool detailed) |
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1719 { |
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1720 ResourceMark rm; |
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1721 stringStream s; |
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1722 // Dump code cache into a buffer before locking the tty, |
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1723 { |
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1724 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
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1725 CodeCache::print_summary(&s, detailed); |
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1726 } |
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1727 ttyLocker ttyl; |
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1728 tty->print_cr(s.as_string()); |
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1729 } |
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1730 |
| 0 | 1731 // ------------------------------------------------------------------ |
| 1732 // CompileBroker::invoke_compiler_on_method | |
| 1733 // | |
| 1734 // Compile a method. | |
| 1735 // | |
| 1736 void CompileBroker::invoke_compiler_on_method(CompileTask* task) { | |
| 1737 if (PrintCompilation) { | |
| 1738 ResourceMark rm; | |
| 1739 task->print_line(); | |
| 1740 } | |
| 1741 elapsedTimer time; | |
| 1742 | |
| 1743 CompilerThread* thread = CompilerThread::current(); | |
| 1744 ResourceMark rm(thread); | |
| 1745 | |
|
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1746 if (LogEvents) { |
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1747 _compilation_log->log_compile(thread, task); |
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1748 } |
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1749 |
| 0 | 1750 // Common flags. |
| 1751 uint compile_id = task->compile_id(); | |
| 1752 int osr_bci = task->osr_bci(); | |
| 1753 bool is_osr = (osr_bci != standard_entry_bci); | |
| 1754 bool should_log = (thread->log() != NULL); | |
| 1755 bool should_break = false; | |
|
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1756 int task_level = task->comp_level(); |
| 0 | 1757 { |
| 1758 // create the handle inside it's own block so it can't | |
| 1759 // accidentally be referenced once the thread transitions to | |
| 1760 // native. The NoHandleMark before the transition should catch | |
| 1761 // any cases where this occurs in the future. | |
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1762 methodHandle method(thread, task->method()); |
| 0 | 1763 should_break = check_break_at(method, compile_id, is_osr); |
| 1764 if (should_log && !CompilerOracle::should_log(method)) { | |
| 1765 should_log = false; | |
| 1766 } | |
| 1767 assert(!method->is_native(), "no longer compile natives"); | |
| 1768 | |
| 1769 // Save information about this method in case of failure. | |
|
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1770 set_last_compile(thread, method, is_osr, task_level); |
| 0 | 1771 |
|
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1772 DTRACE_METHOD_COMPILE_BEGIN_PROBE(compiler(task_level), method, |
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1773 compiler_name(task_level)); |
| 0 | 1774 } |
| 1775 | |
| 1776 // Allocate a new set of JNI handles. | |
| 1777 push_jni_handle_block(); | |
|
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1778 Method* target_handle = task->method(); |
| 0 | 1779 int compilable = ciEnv::MethodCompilable; |
| 1780 { | |
| 1781 int system_dictionary_modification_counter; | |
| 1782 { | |
| 1783 MutexLocker locker(Compile_lock, thread); | |
| 1784 system_dictionary_modification_counter = SystemDictionary::number_of_modifications(); | |
| 1785 } | |
| 1786 | |
| 1787 NoHandleMark nhm; | |
| 1788 ThreadToNativeFromVM ttn(thread); | |
| 1789 | |
| 1790 ciEnv ci_env(task, system_dictionary_modification_counter); | |
| 1791 if (should_break) { | |
| 1792 ci_env.set_break_at_compile(true); | |
| 1793 } | |
| 1794 if (should_log) { | |
| 1795 ci_env.set_log(thread->log()); | |
| 1796 } | |
| 1797 assert(thread->env() == &ci_env, "set by ci_env"); | |
| 1798 // The thread-env() field is cleared in ~CompileTaskWrapper. | |
| 1799 | |
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1800 // Cache Jvmti state |
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1801 ci_env.cache_jvmti_state(); |
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1802 |
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1803 // Cache DTrace flags |
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1804 ci_env.cache_dtrace_flags(); |
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1805 |
| 0 | 1806 ciMethod* target = ci_env.get_method_from_handle(target_handle); |
| 1807 | |
| 1808 TraceTime t1("compilation", &time); | |
| 1809 | |
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1810 AbstractCompiler *comp = compiler(task_level); |
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1811 if (comp == NULL) { |
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1812 ci_env.record_method_not_compilable("no compiler", !TieredCompilation); |
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1813 } else { |
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1814 comp->compile_method(&ci_env, target, osr_bci); |
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1815 } |
| 0 | 1816 |
| 1817 if (!ci_env.failing() && task->code() == NULL) { | |
| 1818 //assert(false, "compiler should always document failure"); | |
| 1819 // The compiler elected, without comment, not to register a result. | |
| 1820 // Do not attempt further compilations of this method. | |
|
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1821 ci_env.record_method_not_compilable("compile failed", !TieredCompilation); |
| 0 | 1822 } |
| 1823 | |
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1824 // Copy this bit to the enclosing block: |
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1825 compilable = ci_env.compilable(); |
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1826 |
| 0 | 1827 if (ci_env.failing()) { |
|
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1828 const char* retry_message = ci_env.retry_message(); |
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1829 if (_compilation_log != NULL) { |
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1830 _compilation_log->log_failure(thread, task, ci_env.failure_reason(), retry_message); |
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1831 } |
| 0 | 1832 if (PrintCompilation) { |
|
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1833 FormatBufferResource msg = retry_message != NULL ? |
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1834 err_msg_res("COMPILE SKIPPED: %s (%s)", ci_env.failure_reason(), retry_message) : |
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1835 err_msg_res("COMPILE SKIPPED: %s", ci_env.failure_reason()); |
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1836 task->print_compilation(tty, msg); |
| 0 | 1837 } |
| 1838 } else { | |
| 1839 task->mark_success(); | |
| 1840 task->set_num_inlined_bytecodes(ci_env.num_inlined_bytecodes()); | |
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1841 if (_compilation_log != NULL) { |
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1842 nmethod* code = task->code(); |
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1843 if (code != NULL) { |
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1844 _compilation_log->log_nmethod(thread, code); |
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1845 } |
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1846 } |
| 0 | 1847 } |
| 1848 } | |
| 1849 pop_jni_handle_block(); | |
| 1850 | |
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1851 methodHandle method(thread, task->method()); |
| 0 | 1852 |
|
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1853 DTRACE_METHOD_COMPILE_END_PROBE(compiler(task_level), method, |
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1854 compiler_name(task_level), task->is_success()); |
| 0 | 1855 |
| 1856 collect_statistics(thread, time, task); | |
| 1857 | |
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1858 if (PrintCompilation && PrintCompilation2) { |
| 4047 | 1859 tty->print("%7d ", (int) tty->time_stamp().milliseconds()); // print timestamp |
| 1860 tty->print("%4d ", compile_id); // print compilation number | |
| 1861 tty->print("%s ", (is_osr ? "%" : " ")); | |
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1862 int code_size = (task->code() == NULL) ? 0 : task->code()->total_size(); |
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1863 tty->print_cr("size: %d time: %d inlined: %d bytes", code_size, (int)time.milliseconds(), task->num_inlined_bytecodes()); |
| 4047 | 1864 } |
| 1865 | |
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1866 if (PrintCodeCacheOnCompilation) |
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1867 codecache_print(/* detailed= */ false); |
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1868 |
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1869 // Disable compilation, if required. |
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1870 switch (compilable) { |
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1871 case ciEnv::MethodCompilable_never: |
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1872 if (is_osr) |
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1873 method->set_not_osr_compilable_quietly(); |
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1874 else |
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1875 method->set_not_compilable_quietly(); |
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1876 break; |
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1877 case ciEnv::MethodCompilable_not_at_tier: |
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1878 if (is_osr) |
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1879 method->set_not_osr_compilable_quietly(task_level); |
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1880 else |
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1881 method->set_not_compilable_quietly(task_level); |
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1882 break; |
| 0 | 1883 } |
| 1884 | |
| 1885 // Note that the queued_for_compilation bits are cleared without | |
| 1886 // protection of a mutex. [They were set by the requester thread, | |
| 1887 // when adding the task to the complie queue -- at which time the | |
| 1888 // compile queue lock was held. Subsequently, we acquired the compile | |
| 1889 // queue lock to get this task off the compile queue; thus (to belabour | |
| 1890 // the point somewhat) our clearing of the bits must be occurring | |
| 1891 // only after the setting of the bits. See also 14012000 above. | |
| 1892 method->clear_queued_for_compilation(); | |
| 1893 | |
| 1894 #ifdef ASSERT | |
| 1895 if (CollectedHeap::fired_fake_oom()) { | |
| 1896 // The current compile received a fake OOM during compilation so | |
| 1897 // go ahead and exit the VM since the test apparently succeeded | |
| 1898 tty->print_cr("*** Shutting down VM after successful fake OOM"); | |
| 1899 vm_exit(0); | |
| 1900 } | |
| 1901 #endif | |
| 1902 } | |
| 1903 | |
| 1904 // ------------------------------------------------------------------ | |
| 1202 | 1905 // CompileBroker::handle_full_code_cache |
| 1906 // | |
| 1907 // The CodeCache is full. Print out warning and disable compilation or | |
| 1908 // try code cache cleaning so compilation can continue later. | |
| 1909 void CompileBroker::handle_full_code_cache() { | |
| 1910 UseInterpreter = true; | |
| 1911 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
|
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1912 if (xtty != NULL) { |
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1913 ResourceMark rm; |
|
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1914 stringStream s; |
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1915 // Dump code cache state into a buffer before locking the tty, |
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1916 // because log_state() will use locks causing lock conflicts. |
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1917 CodeCache::log_state(&s); |
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1918 // Lock to prevent tearing |
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1919 ttyLocker ttyl; |
|
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1920 xtty->begin_elem("code_cache_full"); |
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1921 xtty->print(s.as_string()); |
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1922 xtty->stamp(); |
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1923 xtty->end_elem(); |
| 1202 | 1924 } |
|
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1925 warning("CodeCache is full. Compiler has been disabled."); |
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1926 warning("Try increasing the code cache size using -XX:ReservedCodeCacheSize="); |
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1927 #ifndef PRODUCT |
| 1202 | 1928 if (CompileTheWorld || ExitOnFullCodeCache) { |
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1929 codecache_print(/* detailed= */ true); |
| 1202 | 1930 before_exit(JavaThread::current()); |
| 1931 exit_globals(); // will delete tty | |
| 1932 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
| 1933 } | |
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1934 #endif |
| 1202 | 1935 if (UseCodeCacheFlushing) { |
| 1936 NMethodSweeper::handle_full_code_cache(true); | |
| 1937 } else { | |
| 1938 UseCompiler = false; | |
| 1939 AlwaysCompileLoopMethods = false; | |
| 1940 } | |
| 1941 } | |
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1942 codecache_print(/* detailed= */ true); |
| 1202 | 1943 } |
| 1944 | |
| 1945 // ------------------------------------------------------------------ | |
| 0 | 1946 // CompileBroker::set_last_compile |
| 1947 // | |
| 1948 // Record this compilation for debugging purposes. | |
| 1949 void CompileBroker::set_last_compile(CompilerThread* thread, methodHandle method, bool is_osr, int comp_level) { | |
| 1950 ResourceMark rm; | |
| 1951 char* method_name = method->name()->as_C_string(); | |
| 1952 strncpy(_last_method_compiled, method_name, CompileBroker::name_buffer_length); | |
| 1953 char current_method[CompilerCounters::cmname_buffer_length]; | |
| 1954 size_t maxLen = CompilerCounters::cmname_buffer_length; | |
| 1955 | |
| 1956 if (UsePerfData) { | |
|
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1957 const char* class_name = method->method_holder()->name()->as_C_string(); |
| 0 | 1958 |
| 1959 size_t s1len = strlen(class_name); | |
| 1960 size_t s2len = strlen(method_name); | |
| 1961 | |
| 1962 // check if we need to truncate the string | |
| 1963 if (s1len + s2len + 2 > maxLen) { | |
| 1964 | |
| 1965 // the strategy is to lop off the leading characters of the | |
| 1966 // class name and the trailing characters of the method name. | |
| 1967 | |
| 1968 if (s2len + 2 > maxLen) { | |
| 1969 // lop of the entire class name string, let snprintf handle | |
| 1970 // truncation of the method name. | |
| 1971 class_name += s1len; // null string | |
| 1972 } | |
| 1973 else { | |
| 1974 // lop off the extra characters from the front of the class name | |
| 1975 class_name += ((s1len + s2len + 2) - maxLen); | |
| 1976 } | |
| 1977 } | |
| 1978 | |
| 1979 jio_snprintf(current_method, maxLen, "%s %s", class_name, method_name); | |
| 1980 } | |
| 1981 | |
| 1982 if (CICountOSR && is_osr) { | |
| 1983 _last_compile_type = osr_compile; | |
| 1984 } else { | |
| 1985 _last_compile_type = normal_compile; | |
| 1986 } | |
| 1987 _last_compile_level = comp_level; | |
| 1988 | |
| 1989 if (UsePerfData) { | |
| 1990 CompilerCounters* counters = thread->counters(); | |
| 1991 counters->set_current_method(current_method); | |
| 1992 counters->set_compile_type((jlong)_last_compile_type); | |
| 1993 } | |
| 1994 } | |
| 1995 | |
| 1996 | |
| 1997 // ------------------------------------------------------------------ | |
| 1998 // CompileBroker::push_jni_handle_block | |
| 1999 // | |
| 2000 // Push on a new block of JNI handles. | |
| 2001 void CompileBroker::push_jni_handle_block() { | |
| 2002 JavaThread* thread = JavaThread::current(); | |
| 2003 | |
| 2004 // Allocate a new block for JNI handles. | |
| 2005 // Inlined code from jni_PushLocalFrame() | |
| 2006 JNIHandleBlock* java_handles = thread->active_handles(); | |
| 2007 JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread); | |
| 2008 assert(compile_handles != NULL && java_handles != NULL, "should not be NULL"); | |
| 2009 compile_handles->set_pop_frame_link(java_handles); // make sure java handles get gc'd. | |
| 2010 thread->set_active_handles(compile_handles); | |
| 2011 } | |
| 2012 | |
| 2013 | |
| 2014 // ------------------------------------------------------------------ | |
| 2015 // CompileBroker::pop_jni_handle_block | |
| 2016 // | |
| 2017 // Pop off the current block of JNI handles. | |
| 2018 void CompileBroker::pop_jni_handle_block() { | |
| 2019 JavaThread* thread = JavaThread::current(); | |
| 2020 | |
| 2021 // Release our JNI handle block | |
| 2022 JNIHandleBlock* compile_handles = thread->active_handles(); | |
| 2023 JNIHandleBlock* java_handles = compile_handles->pop_frame_link(); | |
| 2024 thread->set_active_handles(java_handles); | |
| 2025 compile_handles->set_pop_frame_link(NULL); | |
| 2026 JNIHandleBlock::release_block(compile_handles, thread); // may block | |
| 2027 } | |
| 2028 | |
| 2029 | |
| 2030 // ------------------------------------------------------------------ | |
| 2031 // CompileBroker::check_break_at | |
| 2032 // | |
| 2033 // Should the compilation break at the current compilation. | |
| 2034 bool CompileBroker::check_break_at(methodHandle method, int compile_id, bool is_osr) { | |
| 2035 if (CICountOSR && is_osr && (compile_id == CIBreakAtOSR)) { | |
| 2036 return true; | |
| 2037 } else if( CompilerOracle::should_break_at(method) ) { // break when compiling | |
| 2038 return true; | |
| 2039 } else { | |
| 2040 return (compile_id == CIBreakAt); | |
| 2041 } | |
| 2042 } | |
| 2043 | |
| 2044 // ------------------------------------------------------------------ | |
| 2045 // CompileBroker::collect_statistics | |
| 2046 // | |
| 2047 // Collect statistics about the compilation. | |
| 2048 | |
| 2049 void CompileBroker::collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task) { | |
| 2050 bool success = task->is_success(); | |
|
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2051 methodHandle method (thread, task->method()); |
| 0 | 2052 uint compile_id = task->compile_id(); |
| 2053 bool is_osr = (task->osr_bci() != standard_entry_bci); | |
| 2054 nmethod* code = task->code(); | |
| 2055 CompilerCounters* counters = thread->counters(); | |
| 2056 | |
| 2057 assert(code == NULL || code->is_locked_by_vm(), "will survive the MutexLocker"); | |
| 2058 MutexLocker locker(CompileStatistics_lock); | |
| 2059 | |
| 2060 // _perf variables are production performance counters which are | |
| 2061 // updated regardless of the setting of the CITime and CITimeEach flags | |
| 2062 // | |
| 2063 if (!success) { | |
| 2064 _total_bailout_count++; | |
| 2065 if (UsePerfData) { | |
| 2066 _perf_last_failed_method->set_value(counters->current_method()); | |
| 2067 _perf_last_failed_type->set_value(counters->compile_type()); | |
| 2068 _perf_total_bailout_count->inc(); | |
| 2069 } | |
| 2070 } else if (code == NULL) { | |
| 2071 if (UsePerfData) { | |
| 2072 _perf_last_invalidated_method->set_value(counters->current_method()); | |
| 2073 _perf_last_invalidated_type->set_value(counters->compile_type()); | |
| 2074 _perf_total_invalidated_count->inc(); | |
| 2075 } | |
| 2076 _total_invalidated_count++; | |
| 2077 } else { | |
| 2078 // Compilation succeeded | |
| 2079 | |
| 2080 // update compilation ticks - used by the implementation of | |
| 2081 // java.lang.management.CompilationMBean | |
| 2082 _perf_total_compilation->inc(time.ticks()); | |
| 2083 | |
| 2084 if (CITime) { | |
| 2085 _t_total_compilation.add(time); | |
| 2086 if (is_osr) { | |
| 2087 _t_osr_compilation.add(time); | |
| 2088 _sum_osr_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 2089 } else { | |
| 2090 _t_standard_compilation.add(time); | |
| 2091 _sum_standard_bytes_compiled += method->code_size() + task->num_inlined_bytecodes(); | |
| 2092 } | |
| 2093 } | |
| 2094 | |
| 2095 if (UsePerfData) { | |
| 2096 // save the name of the last method compiled | |
| 2097 _perf_last_method->set_value(counters->current_method()); | |
| 2098 _perf_last_compile_type->set_value(counters->compile_type()); | |
| 2099 _perf_last_compile_size->set_value(method->code_size() + | |
| 2100 task->num_inlined_bytecodes()); | |
| 2101 if (is_osr) { | |
| 2102 _perf_osr_compilation->inc(time.ticks()); | |
| 2103 _perf_sum_osr_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2104 } else { | |
| 2105 _perf_standard_compilation->inc(time.ticks()); | |
| 2106 _perf_sum_standard_bytes_compiled->inc(method->code_size() + task->num_inlined_bytecodes()); | |
| 2107 } | |
| 2108 } | |
| 2109 | |
| 2110 if (CITimeEach) { | |
| 2111 float bytes_per_sec = 1.0 * (method->code_size() + task->num_inlined_bytecodes()) / time.seconds(); | |
| 2112 tty->print_cr("%3d seconds: %f bytes/sec : %f (bytes %d + %d inlined)", | |
| 2113 compile_id, time.seconds(), bytes_per_sec, method->code_size(), task->num_inlined_bytecodes()); | |
| 2114 } | |
| 2115 | |
| 2116 // Collect counts of successful compilations | |
| 1748 | 2117 _sum_nmethod_size += code->total_size(); |
| 2118 _sum_nmethod_code_size += code->insts_size(); | |
| 0 | 2119 _total_compile_count++; |
| 2120 | |
| 2121 if (UsePerfData) { | |
| 1748 | 2122 _perf_sum_nmethod_size->inc( code->total_size()); |
| 2123 _perf_sum_nmethod_code_size->inc(code->insts_size()); | |
| 0 | 2124 _perf_total_compile_count->inc(); |
| 2125 } | |
| 2126 | |
| 2127 if (is_osr) { | |
| 2128 if (UsePerfData) _perf_total_osr_compile_count->inc(); | |
| 2129 _total_osr_compile_count++; | |
| 2130 } else { | |
| 2131 if (UsePerfData) _perf_total_standard_compile_count->inc(); | |
| 2132 _total_standard_compile_count++; | |
| 2133 } | |
| 2134 } | |
| 2135 // set the current method for the thread to null | |
| 2136 if (UsePerfData) counters->set_current_method(""); | |
| 2137 } | |
| 2138 | |
|
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2139 const char* CompileBroker::compiler_name(int comp_level) { |
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2140 AbstractCompiler *comp = CompileBroker::compiler(comp_level); |
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2141 if (comp == NULL) { |
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2142 return "no compiler"; |
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2143 } else { |
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2144 return (comp->name()); |
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2145 } |
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2146 } |
| 0 | 2147 |
| 2148 void CompileBroker::print_times() { | |
| 2149 tty->cr(); | |
| 2150 tty->print_cr("Accumulated compiler times (for compiled methods only)"); | |
| 2151 tty->print_cr("------------------------------------------------"); | |
| 2152 //0000000000111111111122222222223333333333444444444455555555556666666666 | |
| 2153 //0123456789012345678901234567890123456789012345678901234567890123456789 | |
| 2154 tty->print_cr(" Total compilation time : %6.3f s", CompileBroker::_t_total_compilation.seconds()); | |
| 2155 tty->print_cr(" Standard compilation : %6.3f s, Average : %2.3f", | |
| 2156 CompileBroker::_t_standard_compilation.seconds(), | |
| 2157 CompileBroker::_t_standard_compilation.seconds() / CompileBroker::_total_standard_compile_count); | |
| 2158 tty->print_cr(" On stack replacement : %6.3f s, Average : %2.3f", CompileBroker::_t_osr_compilation.seconds(), CompileBroker::_t_osr_compilation.seconds() / CompileBroker::_total_osr_compile_count); | |
| 1131 | 2159 |
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2160 AbstractCompiler *comp = compiler(CompLevel_simple); |
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2161 if (comp != NULL) { |
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2162 comp->print_timers(); |
| 0 | 2163 } |
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2164 comp = compiler(CompLevel_full_optimization); |
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2165 if (comp != NULL) { |
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2166 comp->print_timers(); |
| 1783 | 2167 } |
| 0 | 2168 tty->cr(); |
| 2169 int tcb = CompileBroker::_sum_osr_bytes_compiled + CompileBroker::_sum_standard_bytes_compiled; | |
| 2170 tty->print_cr(" Total compiled bytecodes : %6d bytes", tcb); | |
| 2171 tty->print_cr(" Standard compilation : %6d bytes", CompileBroker::_sum_standard_bytes_compiled); | |
| 2172 tty->print_cr(" On stack replacement : %6d bytes", CompileBroker::_sum_osr_bytes_compiled); | |
| 2173 int bps = (int)(tcb / CompileBroker::_t_total_compilation.seconds()); | |
| 2174 tty->print_cr(" Average compilation speed: %6d bytes/s", bps); | |
| 2175 tty->cr(); | |
| 2176 tty->print_cr(" nmethod code size : %6d bytes", CompileBroker::_sum_nmethod_code_size); | |
| 2177 tty->print_cr(" nmethod total size : %6d bytes", CompileBroker::_sum_nmethod_size); | |
| 2178 } | |
| 2179 | |
| 2180 | |
| 2181 // Debugging output for failure | |
| 2182 void CompileBroker::print_last_compile() { | |
| 2183 if ( _last_compile_level != CompLevel_none && | |
| 2184 compiler(_last_compile_level) != NULL && | |
| 2185 _last_method_compiled != NULL && | |
| 2186 _last_compile_type != no_compile) { | |
| 2187 if (_last_compile_type == osr_compile) { | |
| 2188 tty->print_cr("Last parse: [osr]%d+++(%d) %s", | |
| 2189 _osr_compilation_id, _last_compile_level, _last_method_compiled); | |
| 2190 } else { | |
| 2191 tty->print_cr("Last parse: %d+++(%d) %s", | |
| 2192 _compilation_id, _last_compile_level, _last_method_compiled); | |
| 2193 } | |
| 2194 } | |
| 2195 } | |
| 2196 | |
| 2197 | |
| 2198 void CompileBroker::print_compiler_threads_on(outputStream* st) { | |
| 2199 #ifndef PRODUCT | |
| 2200 st->print_cr("Compiler thread printing unimplemented."); | |
| 2201 st->cr(); | |
| 2202 #endif | |
| 2203 } |