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annotate src/share/vm/compiler/compileBroker.hpp @ 2194:face83fc8882
7012088: jump to 0 address because of lack of memory ordering in SignatureHandlerLibrary::add
Summary: Write method signature handler under lock to prevent race with growable array resizing
Reviewed-by: dsamersoff, dholmes
author | coleenp |
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date | Wed, 02 Feb 2011 18:38:40 -0500 |
parents | f95d63e2154a |
children | 06f017f7daa7 3d58a4983660 |
rev | line source |
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0 | 1 /* |
1783 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
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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 #ifndef SHARE_VM_COMPILER_COMPILEBROKER_HPP |
26 #define SHARE_VM_COMPILER_COMPILEBROKER_HPP | |
27 | |
28 #include "ci/compilerInterface.hpp" | |
29 #include "compiler/abstractCompiler.hpp" | |
30 #include "runtime/perfData.hpp" | |
31 | |
0 | 32 class nmethod; |
33 class nmethodLocker; | |
34 | |
35 // CompileTask | |
36 // | |
37 // An entry in the compile queue. It represents a pending or current | |
38 // compilation. | |
39 class CompileTask : public CHeapObj { | |
40 private: | |
41 Monitor* _lock; | |
42 uint _compile_id; | |
43 jobject _method; | |
44 int _osr_bci; | |
45 bool _is_complete; | |
46 bool _is_success; | |
47 bool _is_blocking; | |
48 int _comp_level; | |
49 int _num_inlined_bytecodes; | |
50 nmethodLocker* _code_handle; // holder of eventual result | |
1783 | 51 CompileTask* _next, *_prev; |
0 | 52 |
53 // Fields used for logging why the compilation was initiated: | |
54 jlong _time_queued; // in units of os::elapsed_counter() | |
55 jobject _hot_method; // which method actually triggered this task | |
56 int _hot_count; // information about its invocation counter | |
57 const char* _comment; // more info about the task | |
58 | |
1783 | 59 void print_compilation(outputStream *st, methodOop method, char* method_name); |
0 | 60 public: |
61 CompileTask() { | |
62 _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock"); | |
63 } | |
64 | |
65 void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level, | |
66 methodHandle hot_method, int hot_count, const char* comment, | |
67 bool is_blocking); | |
68 | |
69 void free(); | |
70 | |
71 int compile_id() const { return _compile_id; } | |
72 jobject method_handle() const { return _method; } | |
73 int osr_bci() const { return _osr_bci; } | |
74 bool is_complete() const { return _is_complete; } | |
75 bool is_blocking() const { return _is_blocking; } | |
76 bool is_success() const { return _is_success; } | |
77 | |
78 nmethodLocker* code_handle() const { return _code_handle; } | |
79 void set_code_handle(nmethodLocker* l) { _code_handle = l; } | |
80 nmethod* code() const; // _code_handle->code() | |
81 void set_code(nmethod* nm); // _code_handle->set_code(nm) | |
82 | |
83 Monitor* lock() const { return _lock; } | |
84 | |
85 void mark_complete() { _is_complete = true; } | |
86 void mark_success() { _is_success = true; } | |
87 | |
88 int comp_level() { return _comp_level;} | |
89 void set_comp_level(int comp_level) { _comp_level = comp_level;} | |
90 | |
91 int num_inlined_bytecodes() const { return _num_inlined_bytecodes; } | |
92 void set_num_inlined_bytecodes(int n) { _num_inlined_bytecodes = n; } | |
93 | |
94 CompileTask* next() const { return _next; } | |
95 void set_next(CompileTask* next) { _next = next; } | |
1783 | 96 CompileTask* prev() const { return _prev; } |
97 void set_prev(CompileTask* prev) { _prev = prev; } | |
0 | 98 |
99 void print(); | |
100 void print_line(); | |
1783 | 101 |
0 | 102 void print_line_on_error(outputStream* st, char* buf, int buflen); |
103 void log_task(xmlStream* log); | |
104 void log_task_queued(); | |
105 void log_task_start(CompileLog* log); | |
106 void log_task_done(CompileLog* log); | |
107 }; | |
108 | |
109 // CompilerCounters | |
110 // | |
111 // Per Compiler Performance Counters. | |
112 // | |
113 class CompilerCounters : public CHeapObj { | |
114 | |
115 public: | |
116 enum { | |
117 cmname_buffer_length = 160 | |
118 }; | |
119 | |
120 private: | |
121 | |
122 char _current_method[cmname_buffer_length]; | |
123 PerfStringVariable* _perf_current_method; | |
124 | |
125 int _compile_type; | |
126 PerfVariable* _perf_compile_type; | |
127 | |
128 PerfCounter* _perf_time; | |
129 PerfCounter* _perf_compiles; | |
130 | |
131 public: | |
132 CompilerCounters(const char* name, int instance, TRAPS); | |
133 | |
134 // these methods should be called in a thread safe context | |
135 | |
136 void set_current_method(const char* method) { | |
137 strncpy(_current_method, method, (size_t)cmname_buffer_length); | |
138 if (UsePerfData) _perf_current_method->set_value(method); | |
139 } | |
140 | |
141 char* current_method() { return _current_method; } | |
142 | |
143 void set_compile_type(int compile_type) { | |
144 _compile_type = compile_type; | |
145 if (UsePerfData) _perf_compile_type->set_value((jlong)compile_type); | |
146 } | |
147 | |
148 int compile_type() { return _compile_type; } | |
149 | |
150 PerfCounter* time_counter() { return _perf_time; } | |
151 PerfCounter* compile_counter() { return _perf_compiles; } | |
152 }; | |
153 | |
154 // CompileQueue | |
155 // | |
156 // A list of CompileTasks. | |
157 class CompileQueue : public CHeapObj { | |
158 private: | |
159 const char* _name; | |
160 Monitor* _lock; | |
161 | |
162 CompileTask* _first; | |
163 CompileTask* _last; | |
164 | |
1783 | 165 int _size; |
0 | 166 public: |
167 CompileQueue(const char* name, Monitor* lock) { | |
168 _name = name; | |
169 _lock = lock; | |
170 _first = NULL; | |
171 _last = NULL; | |
1783 | 172 _size = 0; |
0 | 173 } |
174 | |
175 const char* name() const { return _name; } | |
176 Monitor* lock() const { return _lock; } | |
177 | |
178 void add(CompileTask* task); | |
1783 | 179 void remove(CompileTask* task); |
180 CompileTask* first() { return _first; } | |
181 CompileTask* last() { return _last; } | |
0 | 182 |
183 CompileTask* get(); | |
184 | |
185 bool is_empty() const { return _first == NULL; } | |
1783 | 186 int size() const { return _size; } |
0 | 187 |
188 void print(); | |
189 }; | |
190 | |
1783 | 191 // CompileTaskWrapper |
192 // | |
193 // Assign this task to the current thread. Deallocate the task | |
194 // when the compilation is complete. | |
195 class CompileTaskWrapper : StackObj { | |
196 public: | |
197 CompileTaskWrapper(CompileTask* task); | |
198 ~CompileTaskWrapper(); | |
199 }; | |
200 | |
0 | 201 |
202 // Compilation | |
203 // | |
204 // The broker for all compilation requests. | |
205 class CompileBroker: AllStatic { | |
206 friend class Threads; | |
207 friend class CompileTaskWrapper; | |
208 | |
209 public: | |
210 enum { | |
211 name_buffer_length = 100 | |
212 }; | |
213 | |
214 // Compile type Information for print_last_compile() and CompilerCounters | |
215 enum { no_compile, normal_compile, osr_compile, native_compile }; | |
216 | |
217 private: | |
218 static bool _initialized; | |
219 static volatile bool _should_block; | |
220 | |
1202 | 221 // This flag can be used to stop compilation or turn it back on |
222 static volatile jint _should_compile_new_jobs; | |
223 | |
0 | 224 // The installed compiler(s) |
225 static AbstractCompiler* _compilers[2]; | |
226 | |
227 // These counters are used for assigning id's to each compilation | |
228 static uint _compilation_id; | |
229 static uint _osr_compilation_id; | |
230 static uint _native_compilation_id; | |
231 | |
232 static int _last_compile_type; | |
233 static int _last_compile_level; | |
234 static char _last_method_compiled[name_buffer_length]; | |
235 | |
1783 | 236 static CompileQueue* _c2_method_queue; |
237 static CompileQueue* _c1_method_queue; | |
0 | 238 static CompileTask* _task_free_list; |
239 | |
240 static GrowableArray<CompilerThread*>* _method_threads; | |
241 | |
242 // performance counters | |
243 static PerfCounter* _perf_total_compilation; | |
244 static PerfCounter* _perf_native_compilation; | |
245 static PerfCounter* _perf_osr_compilation; | |
246 static PerfCounter* _perf_standard_compilation; | |
247 | |
248 static PerfCounter* _perf_total_bailout_count; | |
249 static PerfCounter* _perf_total_invalidated_count; | |
250 static PerfCounter* _perf_total_compile_count; | |
251 static PerfCounter* _perf_total_native_compile_count; | |
252 static PerfCounter* _perf_total_osr_compile_count; | |
253 static PerfCounter* _perf_total_standard_compile_count; | |
254 | |
255 static PerfCounter* _perf_sum_osr_bytes_compiled; | |
256 static PerfCounter* _perf_sum_standard_bytes_compiled; | |
257 static PerfCounter* _perf_sum_nmethod_size; | |
258 static PerfCounter* _perf_sum_nmethod_code_size; | |
259 | |
260 static PerfStringVariable* _perf_last_method; | |
261 static PerfStringVariable* _perf_last_failed_method; | |
262 static PerfStringVariable* _perf_last_invalidated_method; | |
263 static PerfVariable* _perf_last_compile_type; | |
264 static PerfVariable* _perf_last_compile_size; | |
265 static PerfVariable* _perf_last_failed_type; | |
266 static PerfVariable* _perf_last_invalidated_type; | |
267 | |
268 // Timers and counters for generating statistics | |
269 static elapsedTimer _t_total_compilation; | |
270 static elapsedTimer _t_osr_compilation; | |
271 static elapsedTimer _t_standard_compilation; | |
272 | |
273 static int _total_bailout_count; | |
274 static int _total_invalidated_count; | |
275 static int _total_compile_count; | |
276 static int _total_native_compile_count; | |
277 static int _total_osr_compile_count; | |
278 static int _total_standard_compile_count; | |
279 | |
280 static int _sum_osr_bytes_compiled; | |
281 static int _sum_standard_bytes_compiled; | |
282 static int _sum_nmethod_size; | |
283 static int _sum_nmethod_code_size; | |
284 | |
285 static CompilerThread* make_compiler_thread(const char* name, CompileQueue* queue, CompilerCounters* counters, TRAPS); | |
1783 | 286 static void init_compiler_threads(int c1_compiler_count, int c2_compiler_count); |
0 | 287 static bool compilation_is_complete (methodHandle method, int osr_bci, int comp_level); |
288 static bool compilation_is_prohibited(methodHandle method, int osr_bci, int comp_level); | |
289 static uint assign_compile_id (methodHandle method, int osr_bci); | |
290 static bool is_compile_blocking (methodHandle method, int osr_bci); | |
291 static void preload_classes (methodHandle method, TRAPS); | |
292 | |
293 static CompileTask* create_compile_task(CompileQueue* queue, | |
294 int compile_id, | |
295 methodHandle method, | |
296 int osr_bci, | |
297 int comp_level, | |
298 methodHandle hot_method, | |
299 int hot_count, | |
300 const char* comment, | |
301 bool blocking); | |
302 static CompileTask* allocate_task(); | |
303 static void free_task(CompileTask* task); | |
304 static void wait_for_completion(CompileTask* task); | |
305 | |
306 static void invoke_compiler_on_method(CompileTask* task); | |
307 static void set_last_compile(CompilerThread *thread, methodHandle method, bool is_osr, int comp_level); | |
308 static void push_jni_handle_block(); | |
309 static void pop_jni_handle_block(); | |
310 static bool check_break_at(methodHandle method, int compile_id, bool is_osr); | |
311 static void collect_statistics(CompilerThread* thread, elapsedTimer time, CompileTask* task); | |
312 | |
313 static void compile_method_base(methodHandle method, | |
314 int osr_bci, | |
315 int comp_level, | |
316 methodHandle hot_method, | |
317 int hot_count, | |
318 const char* comment, | |
319 TRAPS); | |
1783 | 320 static CompileQueue* compile_queue(int comp_level) { |
321 if (is_c2_compile(comp_level)) return _c2_method_queue; | |
322 if (is_c1_compile(comp_level)) return _c1_method_queue; | |
323 return NULL; | |
324 } | |
0 | 325 public: |
326 enum { | |
327 // The entry bci used for non-OSR compilations. | |
328 standard_entry_bci = InvocationEntryBci | |
329 }; | |
330 | |
1783 | 331 static AbstractCompiler* compiler(int comp_level) { |
332 if (is_c2_compile(comp_level)) return _compilers[1]; // C2 | |
333 if (is_c1_compile(comp_level)) return _compilers[0]; // C1 | |
334 return NULL; | |
0 | 335 } |
336 | |
1783 | 337 static bool compilation_is_in_queue(methodHandle method, int osr_bci); |
338 static int queue_size(int comp_level) { | |
339 CompileQueue *q = compile_queue(comp_level); | |
340 return q != NULL ? q->size() : 0; | |
341 } | |
0 | 342 static void compilation_init(); |
343 static void init_compiler_thread_log(); | |
1783 | 344 static nmethod* compile_method(methodHandle method, |
345 int osr_bci, | |
346 int comp_level, | |
347 methodHandle hot_method, | |
348 int hot_count, | |
0 | 349 const char* comment, TRAPS); |
350 | |
351 static void compiler_thread_loop(); | |
352 | |
1202 | 353 static uint get_compilation_id() { return _compilation_id; } |
0 | 354 static bool is_idle(); |
355 | |
356 // Set _should_block. | |
357 // Call this from the VM, with Threads_lock held and a safepoint requested. | |
358 static void set_should_block(); | |
359 | |
360 // Call this from the compiler at convenient points, to poll for _should_block. | |
361 static void maybe_block(); | |
362 | |
1202 | 363 enum { |
364 // Flags for toggling compiler activity | |
365 stop_compilation = 0, | |
366 run_compilation = 1 | |
367 }; | |
368 | |
369 static bool should_compile_new_jobs() { return UseCompiler && (_should_compile_new_jobs == run_compilation); } | |
370 static bool set_should_compile_new_jobs(jint new_state) { | |
371 // Return success if the current caller set it | |
372 jint old = Atomic::cmpxchg(new_state, &_should_compile_new_jobs, 1-new_state); | |
373 return (old == (1-new_state)); | |
374 } | |
375 static void handle_full_code_cache(); | |
376 | |
0 | 377 // Return total compilation ticks |
378 static jlong total_compilation_ticks() { | |
379 return _perf_total_compilation != NULL ? _perf_total_compilation->get_value() : 0; | |
380 } | |
381 | |
382 // Print a detailed accounting of compilation time | |
383 static void print_times(); | |
384 | |
385 // Debugging output for failure | |
386 static void print_last_compile(); | |
387 | |
388 static void print_compiler_threads_on(outputStream* st); | |
389 }; | |
1972 | 390 |
391 #endif // SHARE_VM_COMPILER_COMPILEBROKER_HPP |