Mercurial > hg > truffle
annotate src/share/vm/ci/ciEnv.cpp @ 1142:4ce7240d622c
6914300: ciEnv should export all well known classes
Reviewed-by: kvn, twisti
author | never |
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date | Wed, 06 Jan 2010 14:22:39 -0800 |
parents | dd57230ba8fe |
children | 5f24d0319e54 6deeaebad47a |
rev | line source |
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0 | 1 /* |
844 | 2 * Copyright 1999-2009 Sun Microsystems, Inc. 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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_ciEnv.cpp.incl" | |
27 | |
28 // ciEnv | |
29 // | |
30 // This class is the top level broker for requests from the compiler | |
31 // to the VM. | |
32 | |
33 ciObject* ciEnv::_null_object_instance; | |
34 ciMethodKlass* ciEnv::_method_klass_instance; | |
35 ciSymbolKlass* ciEnv::_symbol_klass_instance; | |
36 ciKlassKlass* ciEnv::_klass_klass_instance; | |
37 ciInstanceKlassKlass* ciEnv::_instance_klass_klass_instance; | |
38 ciTypeArrayKlassKlass* ciEnv::_type_array_klass_klass_instance; | |
39 ciObjArrayKlassKlass* ciEnv::_obj_array_klass_klass_instance; | |
40 | |
1142 | 41 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; |
42 WK_KLASSES_DO(WK_KLASS_DEFN) | |
43 #undef WK_KLASS_DEFN | |
0 | 44 |
45 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; | |
46 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; | |
47 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; | |
48 | |
49 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; | |
50 jobject ciEnv::_ArrayStoreException_handle = NULL; | |
51 jobject ciEnv::_ClassCastException_handle = NULL; | |
52 | |
53 #ifndef PRODUCT | |
54 static bool firstEnv = true; | |
55 #endif /* PRODUCT */ | |
56 | |
57 // ------------------------------------------------------------------ | |
58 // ciEnv::ciEnv | |
59 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) { | |
60 VM_ENTRY_MARK; | |
61 | |
62 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
63 thread->set_env(this); | |
64 assert(ciEnv::current() == this, "sanity"); | |
65 | |
66 _oop_recorder = NULL; | |
67 _debug_info = NULL; | |
68 _dependencies = NULL; | |
69 _failure_reason = NULL; | |
70 _compilable = MethodCompilable; | |
71 _break_at_compile = false; | |
72 _compiler_data = NULL; | |
73 #ifndef PRODUCT | |
74 assert(!firstEnv, "not initialized properly"); | |
75 #endif /* !PRODUCT */ | |
76 | |
77 _system_dictionary_modification_counter = system_dictionary_modification_counter; | |
78 _num_inlined_bytecodes = 0; | |
79 assert(task == NULL || thread->task() == task, "sanity"); | |
80 _task = task; | |
81 _log = NULL; | |
82 | |
83 // Temporary buffer for creating symbols and such. | |
84 _name_buffer = NULL; | |
85 _name_buffer_len = 0; | |
86 | |
87 _arena = &_ciEnv_arena; | |
88 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
89 | |
90 // Preload commonly referenced system ciObjects. | |
91 | |
92 // During VM initialization, these instances have not yet been created. | |
93 // Assertions ensure that these instances are not accessed before | |
94 // their initialization. | |
95 | |
96 assert(Universe::is_fully_initialized(), "should be complete"); | |
97 | |
98 oop o = Universe::null_ptr_exception_instance(); | |
99 assert(o != NULL, "should have been initialized"); | |
100 _NullPointerException_instance = get_object(o)->as_instance(); | |
101 o = Universe::arithmetic_exception_instance(); | |
102 assert(o != NULL, "should have been initialized"); | |
103 _ArithmeticException_instance = get_object(o)->as_instance(); | |
104 | |
105 _ArrayIndexOutOfBoundsException_instance = NULL; | |
106 _ArrayStoreException_instance = NULL; | |
107 _ClassCastException_instance = NULL; | |
1080
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108 _the_null_string = NULL; |
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109 _the_min_jint_string = NULL; |
0 | 110 } |
111 | |
112 ciEnv::ciEnv(Arena* arena) { | |
113 ASSERT_IN_VM; | |
114 | |
115 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
116 CompilerThread* current_thread = CompilerThread::current(); | |
117 assert(current_thread->env() == NULL, "must be"); | |
118 current_thread->set_env(this); | |
119 assert(ciEnv::current() == this, "sanity"); | |
120 | |
121 _oop_recorder = NULL; | |
122 _debug_info = NULL; | |
123 _dependencies = NULL; | |
124 _failure_reason = NULL; | |
125 _compilable = MethodCompilable_never; | |
126 _break_at_compile = false; | |
127 _compiler_data = NULL; | |
128 #ifndef PRODUCT | |
129 assert(firstEnv, "must be first"); | |
130 firstEnv = false; | |
131 #endif /* !PRODUCT */ | |
132 | |
133 _system_dictionary_modification_counter = 0; | |
134 _num_inlined_bytecodes = 0; | |
135 _task = NULL; | |
136 _log = NULL; | |
137 | |
138 // Temporary buffer for creating symbols and such. | |
139 _name_buffer = NULL; | |
140 _name_buffer_len = 0; | |
141 | |
142 _arena = arena; | |
143 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
144 | |
145 // Preload commonly referenced system ciObjects. | |
146 | |
147 // During VM initialization, these instances have not yet been created. | |
148 // Assertions ensure that these instances are not accessed before | |
149 // their initialization. | |
150 | |
151 assert(Universe::is_fully_initialized(), "must be"); | |
152 | |
153 oop o = Universe::null_ptr_exception_instance(); | |
154 assert(o != NULL, "should have been initialized"); | |
155 _NullPointerException_instance = get_object(o)->as_instance(); | |
156 o = Universe::arithmetic_exception_instance(); | |
157 assert(o != NULL, "should have been initialized"); | |
158 _ArithmeticException_instance = get_object(o)->as_instance(); | |
159 | |
160 _ArrayIndexOutOfBoundsException_instance = NULL; | |
161 _ArrayStoreException_instance = NULL; | |
162 _ClassCastException_instance = NULL; | |
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163 _the_null_string = NULL; |
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164 _the_min_jint_string = NULL; |
0 | 165 } |
166 | |
167 ciEnv::~ciEnv() { | |
168 CompilerThread* current_thread = CompilerThread::current(); | |
169 current_thread->set_env(NULL); | |
170 } | |
171 | |
172 // ------------------------------------------------------------------ | |
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173 // Cache Jvmti state |
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174 void ciEnv::cache_jvmti_state() { |
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175 VM_ENTRY_MARK; |
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176 // Get Jvmti capabilities under lock to get consistant values. |
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177 MutexLocker mu(JvmtiThreadState_lock); |
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178 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
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179 _jvmti_can_examine_or_deopt_anywhere = JvmtiExport::can_examine_or_deopt_anywhere(); |
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180 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
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181 _jvmti_can_post_exceptions = JvmtiExport::can_post_exceptions(); |
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182 } |
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183 |
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184 // ------------------------------------------------------------------ |
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185 // Cache DTrace flags |
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186 void ciEnv::cache_dtrace_flags() { |
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187 // Need lock? |
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188 _dtrace_extended_probes = ExtendedDTraceProbes; |
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189 if (_dtrace_extended_probes) { |
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190 _dtrace_monitor_probes = true; |
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191 _dtrace_method_probes = true; |
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192 _dtrace_alloc_probes = true; |
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193 } else { |
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194 _dtrace_monitor_probes = DTraceMonitorProbes; |
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195 _dtrace_method_probes = DTraceMethodProbes; |
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196 _dtrace_alloc_probes = DTraceAllocProbes; |
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197 } |
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198 } |
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199 |
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200 // ------------------------------------------------------------------ |
0 | 201 // helper for lazy exception creation |
202 ciInstance* ciEnv::get_or_create_exception(jobject& handle, symbolHandle name) { | |
203 VM_ENTRY_MARK; | |
204 if (handle == NULL) { | |
205 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. | |
206 klassOop k = SystemDictionary::find(name, Handle(), Handle(), THREAD); | |
207 jobject objh = NULL; | |
208 if (!HAS_PENDING_EXCEPTION && k != NULL) { | |
209 oop obj = instanceKlass::cast(k)->allocate_permanent_instance(THREAD); | |
210 if (!HAS_PENDING_EXCEPTION) | |
211 objh = JNIHandles::make_global(obj); | |
212 } | |
213 if (HAS_PENDING_EXCEPTION) { | |
214 CLEAR_PENDING_EXCEPTION; | |
215 } else { | |
216 handle = objh; | |
217 } | |
218 } | |
219 oop obj = JNIHandles::resolve(handle); | |
220 return obj == NULL? NULL: get_object(obj)->as_instance(); | |
221 } | |
222 | |
223 // ------------------------------------------------------------------ | |
224 // ciEnv::ArrayIndexOutOfBoundsException_instance, etc. | |
225 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { | |
226 if (_ArrayIndexOutOfBoundsException_instance == NULL) { | |
227 _ArrayIndexOutOfBoundsException_instance | |
228 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, | |
229 vmSymbolHandles::java_lang_ArrayIndexOutOfBoundsException()); | |
230 } | |
231 return _ArrayIndexOutOfBoundsException_instance; | |
232 } | |
233 ciInstance* ciEnv::ArrayStoreException_instance() { | |
234 if (_ArrayStoreException_instance == NULL) { | |
235 _ArrayStoreException_instance | |
236 = get_or_create_exception(_ArrayStoreException_handle, | |
237 vmSymbolHandles::java_lang_ArrayStoreException()); | |
238 } | |
239 return _ArrayStoreException_instance; | |
240 } | |
241 ciInstance* ciEnv::ClassCastException_instance() { | |
242 if (_ClassCastException_instance == NULL) { | |
243 _ClassCastException_instance | |
244 = get_or_create_exception(_ClassCastException_handle, | |
245 vmSymbolHandles::java_lang_ClassCastException()); | |
246 } | |
247 return _ClassCastException_instance; | |
248 } | |
249 | |
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250 ciInstance* ciEnv::the_null_string() { |
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251 if (_the_null_string == NULL) { |
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252 VM_ENTRY_MARK; |
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253 _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
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254 } |
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255 return _the_null_string; |
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256 } |
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257 |
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258 ciInstance* ciEnv::the_min_jint_string() { |
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259 if (_the_min_jint_string == NULL) { |
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260 VM_ENTRY_MARK; |
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261 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); |
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262 } |
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263 return _the_min_jint_string; |
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264 } |
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265 |
0 | 266 // ------------------------------------------------------------------ |
267 // ciEnv::get_method_from_handle | |
268 ciMethod* ciEnv::get_method_from_handle(jobject method) { | |
269 VM_ENTRY_MARK; | |
270 return get_object(JNIHandles::resolve(method))->as_method(); | |
271 } | |
272 | |
273 // ------------------------------------------------------------------ | |
274 // ciEnv::make_array | |
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275 ciArray* ciEnv::make_system_array(GrowableArray<ciObject*>* objects) { |
0 | 276 VM_ENTRY_MARK; |
277 int length = objects->length(); | |
278 objArrayOop a = oopFactory::new_system_objArray(length, THREAD); | |
279 if (HAS_PENDING_EXCEPTION) { | |
280 CLEAR_PENDING_EXCEPTION; | |
281 record_out_of_memory_failure(); | |
282 return NULL; | |
283 } | |
284 for (int i = 0; i < length; i++) { | |
285 a->obj_at_put(i, objects->at(i)->get_oop()); | |
286 } | |
287 assert(a->is_perm(), ""); | |
288 return get_object(a)->as_array(); | |
289 } | |
290 | |
291 | |
292 // ------------------------------------------------------------------ | |
293 // ciEnv::array_element_offset_in_bytes | |
294 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { | |
295 VM_ENTRY_MARK; | |
296 objArrayOop a = (objArrayOop)a_h->get_oop(); | |
297 assert(a->is_objArray(), ""); | |
298 int length = a->length(); | |
299 oop o = o_h->get_oop(); | |
300 for (int i = 0; i < length; i++) { | |
301 if (a->obj_at(i) == o) return i; | |
302 } | |
303 return -1; | |
304 } | |
305 | |
306 | |
307 // ------------------------------------------------------------------ | |
308 // ciEnv::check_klass_accessiblity | |
309 // | |
310 // Note: the logic of this method should mirror the logic of | |
311 // constantPoolOopDesc::verify_constant_pool_resolve. | |
312 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, | |
313 klassOop resolved_klass) { | |
314 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { | |
315 return true; | |
316 } | |
317 if (accessing_klass->is_obj_array()) { | |
318 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); | |
319 } | |
320 if (!accessing_klass->is_instance_klass()) { | |
321 return true; | |
322 } | |
323 | |
324 if (resolved_klass->klass_part()->oop_is_objArray()) { | |
325 // Find the element klass, if this is an array. | |
326 resolved_klass = objArrayKlass::cast(resolved_klass)->bottom_klass(); | |
327 } | |
328 if (resolved_klass->klass_part()->oop_is_instance()) { | |
329 return Reflection::verify_class_access(accessing_klass->get_klassOop(), | |
330 resolved_klass, | |
331 true); | |
332 } | |
333 return true; | |
334 } | |
335 | |
336 // ------------------------------------------------------------------ | |
337 // ciEnv::get_klass_by_name_impl | |
338 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, | |
339 ciSymbol* name, | |
340 bool require_local) { | |
341 ASSERT_IN_VM; | |
342 EXCEPTION_CONTEXT; | |
343 | |
344 // Now we need to check the SystemDictionary | |
345 symbolHandle sym(THREAD, name->get_symbolOop()); | |
346 if (sym->byte_at(0) == 'L' && | |
347 sym->byte_at(sym->utf8_length()-1) == ';') { | |
348 // This is a name from a signature. Strip off the trimmings. | |
349 sym = oopFactory::new_symbol_handle(sym->as_utf8()+1, | |
350 sym->utf8_length()-2, | |
351 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); | |
352 name = get_object(sym())->as_symbol(); | |
353 } | |
354 | |
355 // Check for prior unloaded klass. The SystemDictionary's answers | |
356 // can vary over time but the compiler needs consistency. | |
357 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); | |
358 if (unloaded_klass != NULL) { | |
359 if (require_local) return NULL; | |
360 return unloaded_klass; | |
361 } | |
362 | |
363 Handle loader(THREAD, (oop)NULL); | |
364 Handle domain(THREAD, (oop)NULL); | |
365 if (accessing_klass != NULL) { | |
366 loader = Handle(THREAD, accessing_klass->loader()); | |
367 domain = Handle(THREAD, accessing_klass->protection_domain()); | |
368 } | |
369 | |
370 // setup up the proper type to return on OOM | |
371 ciKlass* fail_type; | |
372 if (sym->byte_at(0) == '[') { | |
373 fail_type = _unloaded_ciobjarrayklass; | |
374 } else { | |
375 fail_type = _unloaded_ciinstance_klass; | |
376 } | |
377 klassOop found_klass; | |
378 if (!require_local) { | |
379 found_klass = | |
380 SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, | |
381 KILL_COMPILE_ON_FATAL_(fail_type)); | |
382 } else { | |
383 found_klass = | |
384 SystemDictionary::find_instance_or_array_klass(sym, loader, domain, | |
385 KILL_COMPILE_ON_FATAL_(fail_type)); | |
386 } | |
387 | |
388 if (found_klass != NULL) { | |
389 // Found it. Build a CI handle. | |
390 return get_object(found_klass)->as_klass(); | |
391 } | |
392 | |
393 // If we fail to find an array klass, look again for its element type. | |
394 // The element type may be available either locally or via constraints. | |
395 // In either case, if we can find the element type in the system dictionary, | |
396 // we must build an array type around it. The CI requires array klasses | |
397 // to be loaded if their element klasses are loaded, except when memory | |
398 // is exhausted. | |
399 if (sym->byte_at(0) == '[' && | |
400 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { | |
401 // We have an unloaded array. | |
402 // Build it on the fly if the element class exists. | |
403 symbolOop elem_sym = oopFactory::new_symbol(sym->as_utf8()+1, | |
404 sym->utf8_length()-1, | |
405 KILL_COMPILE_ON_FATAL_(fail_type)); | |
406 // Get element ciKlass recursively. | |
407 ciKlass* elem_klass = | |
408 get_klass_by_name_impl(accessing_klass, | |
409 get_object(elem_sym)->as_symbol(), | |
410 require_local); | |
411 if (elem_klass != NULL && elem_klass->is_loaded()) { | |
412 // Now make an array for it | |
413 return ciObjArrayKlass::make_impl(elem_klass); | |
414 } | |
415 } | |
416 | |
417 if (require_local) return NULL; | |
418 // Not yet loaded into the VM, or not governed by loader constraints. | |
419 // Make a CI representative for it. | |
420 return get_unloaded_klass(accessing_klass, name); | |
421 } | |
422 | |
423 // ------------------------------------------------------------------ | |
424 // ciEnv::get_klass_by_name | |
425 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, | |
426 ciSymbol* klass_name, | |
427 bool require_local) { | |
428 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, | |
429 klass_name, | |
430 require_local);) | |
431 } | |
432 | |
433 // ------------------------------------------------------------------ | |
434 // ciEnv::get_klass_by_index_impl | |
435 // | |
436 // Implementation of get_klass_by_index. | |
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437 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 438 int index, |
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439 bool& is_accessible, |
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440 ciInstanceKlass* accessor) { |
0 | 441 EXCEPTION_CONTEXT; |
442 KlassHandle klass (THREAD, constantPoolOopDesc::klass_at_if_loaded(cpool, index)); | |
443 symbolHandle klass_name; | |
444 if (klass.is_null()) { | |
445 // The klass has not been inserted into the constant pool. | |
446 // Try to look it up by name. | |
447 { | |
448 // We have to lock the cpool to keep the oop from being resolved | |
449 // while we are accessing it. | |
450 ObjectLocker ol(cpool, THREAD); | |
451 | |
452 constantTag tag = cpool->tag_at(index); | |
453 if (tag.is_klass()) { | |
454 // The klass has been inserted into the constant pool | |
455 // very recently. | |
456 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); | |
457 } else if (tag.is_symbol()) { | |
458 klass_name = symbolHandle(THREAD, cpool->symbol_at(index)); | |
459 } else { | |
460 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag"); | |
461 klass_name = symbolHandle(THREAD, cpool->unresolved_klass_at(index)); | |
462 } | |
463 } | |
464 } | |
465 | |
466 if (klass.is_null()) { | |
467 // Not found in constant pool. Use the name to do the lookup. | |
468 ciKlass* k = get_klass_by_name_impl(accessor, | |
469 get_object(klass_name())->as_symbol(), | |
470 false); | |
471 // Calculate accessibility the hard way. | |
472 if (!k->is_loaded()) { | |
473 is_accessible = false; | |
474 } else if (k->loader() != accessor->loader() && | |
475 get_klass_by_name_impl(accessor, k->name(), true) == NULL) { | |
476 // Loaded only remotely. Not linked yet. | |
477 is_accessible = false; | |
478 } else { | |
479 // Linked locally, and we must also check public/private, etc. | |
480 is_accessible = check_klass_accessibility(accessor, k->get_klassOop()); | |
481 } | |
482 return k; | |
483 } | |
484 | |
485 // Check for prior unloaded klass. The SystemDictionary's answers | |
486 // can vary over time but the compiler needs consistency. | |
487 ciSymbol* name = get_object(klass()->klass_part()->name())->as_symbol(); | |
488 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); | |
489 if (unloaded_klass != NULL) { | |
490 is_accessible = false; | |
491 return unloaded_klass; | |
492 } | |
493 | |
494 // It is known to be accessible, since it was found in the constant pool. | |
495 is_accessible = true; | |
496 return get_object(klass())->as_klass(); | |
497 } | |
498 | |
499 // ------------------------------------------------------------------ | |
500 // ciEnv::get_klass_by_index | |
501 // | |
502 // Get a klass from the constant pool. | |
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503 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, |
0 | 504 int index, |
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505 bool& is_accessible, |
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506 ciInstanceKlass* accessor) { |
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507 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) |
0 | 508 } |
509 | |
510 // ------------------------------------------------------------------ | |
511 // ciEnv::get_constant_by_index_impl | |
512 // | |
513 // Implementation of get_constant_by_index(). | |
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514 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, |
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515 int index, |
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516 ciInstanceKlass* accessor) { |
0 | 517 EXCEPTION_CONTEXT; |
518 constantTag tag = cpool->tag_at(index); | |
519 if (tag.is_int()) { | |
520 return ciConstant(T_INT, (jint)cpool->int_at(index)); | |
521 } else if (tag.is_long()) { | |
522 return ciConstant((jlong)cpool->long_at(index)); | |
523 } else if (tag.is_float()) { | |
524 return ciConstant((jfloat)cpool->float_at(index)); | |
525 } else if (tag.is_double()) { | |
526 return ciConstant((jdouble)cpool->double_at(index)); | |
527 } else if (tag.is_string() || tag.is_unresolved_string()) { | |
431
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528 oop string = NULL; |
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529 if (cpool->is_pseudo_string_at(index)) { |
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530 string = cpool->pseudo_string_at(index); |
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531 } else { |
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532 string = cpool->string_at(index, THREAD); |
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533 if (HAS_PENDING_EXCEPTION) { |
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534 CLEAR_PENDING_EXCEPTION; |
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535 record_out_of_memory_failure(); |
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536 return ciConstant(); |
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537 } |
0 | 538 } |
539 ciObject* constant = get_object(string); | |
540 assert (constant->is_instance(), "must be an instance, or not? "); | |
541 return ciConstant(T_OBJECT, constant); | |
542 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
543 // 4881222: allow ldc to take a class type | |
544 bool ignore; | |
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545 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore, accessor); |
0 | 546 if (HAS_PENDING_EXCEPTION) { |
547 CLEAR_PENDING_EXCEPTION; | |
548 record_out_of_memory_failure(); | |
549 return ciConstant(); | |
550 } | |
551 assert (klass->is_instance_klass() || klass->is_array_klass(), | |
552 "must be an instance or array klass "); | |
553 return ciConstant(T_OBJECT, klass); | |
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554 } else if (tag.is_object()) { |
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555 oop obj = cpool->object_at(index); |
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556 assert(obj->is_instance(), "must be an instance"); |
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557 ciObject* ciobj = get_object(obj); |
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558 return ciConstant(T_OBJECT, ciobj); |
0 | 559 } else { |
560 ShouldNotReachHere(); | |
561 return ciConstant(); | |
562 } | |
563 } | |
564 | |
565 // ------------------------------------------------------------------ | |
566 // ciEnv::is_unresolved_string_impl | |
567 // | |
568 // Implementation of is_unresolved_string(). | |
569 bool ciEnv::is_unresolved_string_impl(instanceKlass* accessor, int index) const { | |
570 EXCEPTION_CONTEXT; | |
571 assert(accessor->is_linked(), "must be linked before accessing constant pool"); | |
572 constantPoolOop cpool = accessor->constants(); | |
573 constantTag tag = cpool->tag_at(index); | |
574 return tag.is_unresolved_string(); | |
575 } | |
576 | |
577 // ------------------------------------------------------------------ | |
578 // ciEnv::is_unresolved_klass_impl | |
579 // | |
580 // Implementation of is_unresolved_klass(). | |
581 bool ciEnv::is_unresolved_klass_impl(instanceKlass* accessor, int index) const { | |
582 EXCEPTION_CONTEXT; | |
583 assert(accessor->is_linked(), "must be linked before accessing constant pool"); | |
584 constantPoolOop cpool = accessor->constants(); | |
585 constantTag tag = cpool->tag_at(index); | |
586 return tag.is_unresolved_klass(); | |
587 } | |
588 | |
589 // ------------------------------------------------------------------ | |
590 // ciEnv::get_constant_by_index | |
591 // | |
592 // Pull a constant out of the constant pool. How appropriate. | |
593 // | |
594 // Implementation note: this query is currently in no way cached. | |
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595 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, |
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596 int index, |
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597 ciInstanceKlass* accessor) { |
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598 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, index, accessor);) |
0 | 599 } |
600 | |
601 // ------------------------------------------------------------------ | |
602 // ciEnv::is_unresolved_string | |
603 // | |
604 // Check constant pool | |
605 // | |
606 // Implementation note: this query is currently in no way cached. | |
607 bool ciEnv::is_unresolved_string(ciInstanceKlass* accessor, | |
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608 int index) const { |
0 | 609 GUARDED_VM_ENTRY(return is_unresolved_string_impl(accessor->get_instanceKlass(), index); ) |
610 } | |
611 | |
612 // ------------------------------------------------------------------ | |
613 // ciEnv::is_unresolved_klass | |
614 // | |
615 // Check constant pool | |
616 // | |
617 // Implementation note: this query is currently in no way cached. | |
618 bool ciEnv::is_unresolved_klass(ciInstanceKlass* accessor, | |
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619 int index) const { |
0 | 620 GUARDED_VM_ENTRY(return is_unresolved_klass_impl(accessor->get_instanceKlass(), index); ) |
621 } | |
622 | |
623 // ------------------------------------------------------------------ | |
624 // ciEnv::get_field_by_index_impl | |
625 // | |
626 // Implementation of get_field_by_index. | |
627 // | |
628 // Implementation note: the results of field lookups are cached | |
629 // in the accessor klass. | |
630 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, | |
631 int index) { | |
632 ciConstantPoolCache* cache = accessor->field_cache(); | |
633 if (cache == NULL) { | |
634 ciField* field = new (arena()) ciField(accessor, index); | |
635 return field; | |
636 } else { | |
637 ciField* field = (ciField*)cache->get(index); | |
638 if (field == NULL) { | |
639 field = new (arena()) ciField(accessor, index); | |
640 cache->insert(index, field); | |
641 } | |
642 return field; | |
643 } | |
644 } | |
645 | |
646 // ------------------------------------------------------------------ | |
647 // ciEnv::get_field_by_index | |
648 // | |
649 // Get a field by index from a klass's constant pool. | |
650 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, | |
651 int index) { | |
652 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) | |
653 } | |
654 | |
655 // ------------------------------------------------------------------ | |
656 // ciEnv::lookup_method | |
657 // | |
658 // Perform an appropriate method lookup based on accessor, holder, | |
659 // name, signature, and bytecode. | |
660 methodOop ciEnv::lookup_method(instanceKlass* accessor, | |
661 instanceKlass* holder, | |
662 symbolOop name, | |
663 symbolOop sig, | |
664 Bytecodes::Code bc) { | |
665 EXCEPTION_CONTEXT; | |
666 KlassHandle h_accessor(THREAD, accessor); | |
667 KlassHandle h_holder(THREAD, holder); | |
668 symbolHandle h_name(THREAD, name); | |
669 symbolHandle h_sig(THREAD, sig); | |
670 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); | |
671 methodHandle dest_method; | |
672 switch (bc) { | |
673 case Bytecodes::_invokestatic: | |
674 dest_method = | |
675 LinkResolver::resolve_static_call_or_null(h_holder, h_name, h_sig, h_accessor); | |
676 break; | |
677 case Bytecodes::_invokespecial: | |
678 dest_method = | |
679 LinkResolver::resolve_special_call_or_null(h_holder, h_name, h_sig, h_accessor); | |
680 break; | |
681 case Bytecodes::_invokeinterface: | |
682 dest_method = | |
683 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, h_name, h_sig, | |
684 h_accessor, true); | |
685 break; | |
686 case Bytecodes::_invokevirtual: | |
687 dest_method = | |
688 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, h_name, h_sig, | |
689 h_accessor, true); | |
690 break; | |
691 default: ShouldNotReachHere(); | |
692 } | |
693 | |
694 return dest_method(); | |
695 } | |
696 | |
697 | |
698 // ------------------------------------------------------------------ | |
699 // ciEnv::get_method_by_index_impl | |
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700 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, |
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701 int index, Bytecodes::Code bc, |
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702 ciInstanceKlass* accessor) { |
0 | 703 int holder_index = cpool->klass_ref_index_at(index); |
704 bool holder_is_accessible; | |
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705 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
0 | 706 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); |
707 | |
708 // Get the method's name and signature. | |
709 symbolOop name_sym = cpool->name_ref_at(index); | |
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710 symbolOop sig_sym = cpool->signature_ref_at(index); |
0 | 711 |
712 if (holder_is_accessible) { // Our declared holder is loaded. | |
713 instanceKlass* lookup = declared_holder->get_instanceKlass(); | |
714 methodOop m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); | |
715 if (m != NULL) { | |
716 // We found the method. | |
717 return get_object(m)->as_method(); | |
718 } | |
719 } | |
720 | |
721 // Either the declared holder was not loaded, or the method could | |
722 // not be found. Create a dummy ciMethod to represent the failed | |
723 // lookup. | |
724 | |
725 return get_unloaded_method(declared_holder, | |
726 get_object(name_sym)->as_symbol(), | |
727 get_object(sig_sym)->as_symbol()); | |
728 } | |
729 | |
730 | |
731 // ------------------------------------------------------------------ | |
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732 // ciEnv::get_fake_invokedynamic_method_impl |
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733 ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool, |
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734 int index, Bytecodes::Code bc) { |
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735 assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic"); |
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736 |
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737 // Get the CallSite from the constant pool cache. |
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738 ConstantPoolCacheEntry* cpc_entry = cpool->cache()->secondary_entry_at(index); |
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739 assert(cpc_entry != NULL && cpc_entry->is_secondary_entry(), "sanity"); |
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740 Handle call_site = cpc_entry->f1(); |
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741 |
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742 // Call site might not be linked yet. |
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743 if (call_site.is_null()) { |
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744 ciInstanceKlass* mh_klass = get_object(SystemDictionary::MethodHandle_klass())->as_instance_klass(); |
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745 ciSymbol* sig_sym = get_object(cpool->signature_ref_at(index))->as_symbol(); |
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746 return get_unloaded_method(mh_klass, ciSymbol::invoke_name(), sig_sym); |
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747 } |
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748 |
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749 // Get the methodOop from the CallSite. |
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750 methodOop method_oop = (methodOop) java_dyn_CallSite::vmmethod(call_site()); |
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751 assert(method_oop != NULL, "sanity"); |
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752 assert(method_oop->is_method_handle_invoke(), "consistent"); |
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753 |
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754 return get_object(method_oop)->as_method(); |
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755 } |
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756 |
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757 |
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758 // ------------------------------------------------------------------ |
0 | 759 // ciEnv::get_instance_klass_for_declared_method_holder |
760 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { | |
761 // For the case of <array>.clone(), the method holder can be a ciArrayKlass | |
762 // instead of a ciInstanceKlass. For that case simply pretend that the | |
763 // declared holder is Object.clone since that's where the call will bottom out. | |
764 // A more correct fix would trickle out through many interfaces in CI, | |
765 // requiring ciInstanceKlass* to become ciKlass* and many more places would | |
766 // require checks to make sure the expected type was found. Given that this | |
767 // only occurs for clone() the more extensive fix seems like overkill so | |
768 // instead we simply smear the array type into Object. | |
769 if (method_holder->is_instance_klass()) { | |
770 return method_holder->as_instance_klass(); | |
771 } else if (method_holder->is_array_klass()) { | |
772 return current()->Object_klass(); | |
773 } else { | |
774 ShouldNotReachHere(); | |
775 } | |
776 return NULL; | |
777 } | |
778 | |
779 | |
780 // ------------------------------------------------------------------ | |
781 // ciEnv::get_method_by_index | |
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782 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, |
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783 int index, Bytecodes::Code bc, |
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784 ciInstanceKlass* accessor) { |
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785 if (bc == Bytecodes::_invokedynamic) { |
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786 GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(cpool, index, bc);) |
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787 } else { |
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788 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) |
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789 } |
0 | 790 } |
791 | |
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792 |
0 | 793 // ------------------------------------------------------------------ |
794 // ciEnv::name_buffer | |
795 char *ciEnv::name_buffer(int req_len) { | |
796 if (_name_buffer_len < req_len) { | |
797 if (_name_buffer == NULL) { | |
798 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); | |
799 _name_buffer_len = req_len; | |
800 } else { | |
801 _name_buffer = | |
802 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); | |
803 _name_buffer_len = req_len; | |
804 } | |
805 } | |
806 return _name_buffer; | |
807 } | |
808 | |
809 // ------------------------------------------------------------------ | |
810 // ciEnv::is_in_vm | |
811 bool ciEnv::is_in_vm() { | |
812 return JavaThread::current()->thread_state() == _thread_in_vm; | |
813 } | |
814 | |
815 bool ciEnv::system_dictionary_modification_counter_changed() { | |
816 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); | |
817 } | |
818 | |
819 // ------------------------------------------------------------------ | |
820 // ciEnv::check_for_system_dictionary_modification | |
821 // Check for changes to the system dictionary during compilation | |
822 // class loads, evolution, breakpoints | |
823 void ciEnv::check_for_system_dictionary_modification(ciMethod* target) { | |
824 if (failing()) return; // no need for further checks | |
825 | |
826 // Dependencies must be checked when the system dictionary changes. | |
827 // If logging is enabled all violated dependences will be recorded in | |
828 // the log. In debug mode check dependencies even if the system | |
829 // dictionary hasn't changed to verify that no invalid dependencies | |
830 // were inserted. Any violated dependences in this case are dumped to | |
831 // the tty. | |
832 | |
833 bool counter_changed = system_dictionary_modification_counter_changed(); | |
834 bool test_deps = counter_changed; | |
835 DEBUG_ONLY(test_deps = true); | |
836 if (!test_deps) return; | |
837 | |
838 bool print_failures = false; | |
839 DEBUG_ONLY(print_failures = !counter_changed); | |
840 | |
841 bool keep_going = (print_failures || xtty != NULL); | |
842 | |
843 int violated = 0; | |
844 | |
845 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { | |
846 klassOop witness = deps.check_dependency(); | |
847 if (witness != NULL) { | |
848 ++violated; | |
849 if (print_failures) deps.print_dependency(witness, /*verbose=*/ true); | |
850 // If there's no log and we're not sanity-checking, we're done. | |
851 if (!keep_going) break; | |
852 } | |
853 } | |
854 | |
855 if (violated != 0) { | |
856 assert(counter_changed, "failed dependencies, but counter didn't change"); | |
857 record_failure("concurrent class loading"); | |
858 } | |
859 } | |
860 | |
861 // ------------------------------------------------------------------ | |
862 // ciEnv::register_method | |
863 void ciEnv::register_method(ciMethod* target, | |
864 int entry_bci, | |
865 CodeOffsets* offsets, | |
866 int orig_pc_offset, | |
867 CodeBuffer* code_buffer, | |
868 int frame_words, | |
869 OopMapSet* oop_map_set, | |
870 ExceptionHandlerTable* handler_table, | |
871 ImplicitExceptionTable* inc_table, | |
872 AbstractCompiler* compiler, | |
873 int comp_level, | |
874 bool has_debug_info, | |
875 bool has_unsafe_access) { | |
876 VM_ENTRY_MARK; | |
877 nmethod* nm = NULL; | |
878 { | |
879 // To prevent compile queue updates. | |
880 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
881 | |
882 // Prevent SystemDictionary::add_to_hierarchy from running | |
883 // and invalidating our dependencies until we install this method. | |
884 MutexLocker ml(Compile_lock); | |
885 | |
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886 // Change in Jvmti state may invalidate compilation. |
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887 if (!failing() && |
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888 ( (!jvmti_can_hotswap_or_post_breakpoint() && |
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889 JvmtiExport::can_hotswap_or_post_breakpoint()) || |
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890 (!jvmti_can_examine_or_deopt_anywhere() && |
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891 JvmtiExport::can_examine_or_deopt_anywhere()) || |
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892 (!jvmti_can_access_local_variables() && |
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893 JvmtiExport::can_access_local_variables()) || |
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894 (!jvmti_can_post_exceptions() && |
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895 JvmtiExport::can_post_exceptions()) )) { |
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896 record_failure("Jvmti state change invalidated dependencies"); |
0 | 897 } |
898 | |
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899 // Change in DTrace flags may invalidate compilation. |
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900 if (!failing() && |
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901 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || |
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902 (!dtrace_method_probes() && DTraceMethodProbes) || |
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903 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { |
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904 record_failure("DTrace flags change invalidated dependencies"); |
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905 } |
0 | 906 |
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907 if (!failing()) { |
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908 if (log() != NULL) { |
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909 // Log the dependencies which this compilation declares. |
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910 dependencies()->log_all_dependencies(); |
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911 } |
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912 |
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913 // Encode the dependencies now, so we can check them right away. |
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914 dependencies()->encode_content_bytes(); |
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915 |
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916 // Check for {class loads, evolution, breakpoints} during compilation |
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917 check_for_system_dictionary_modification(target); |
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918 } |
0 | 919 |
920 methodHandle method(THREAD, target->get_methodOop()); | |
921 | |
922 if (failing()) { | |
923 // While not a true deoptimization, it is a preemptive decompile. | |
924 methodDataOop mdo = method()->method_data(); | |
925 if (mdo != NULL) { | |
926 mdo->inc_decompile_count(); | |
927 } | |
928 | |
929 // All buffers in the CodeBuffer are allocated in the CodeCache. | |
930 // If the code buffer is created on each compile attempt | |
931 // as in C2, then it must be freed. | |
932 code_buffer->free_blob(); | |
933 return; | |
934 } | |
935 | |
936 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); | |
937 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); | |
938 | |
939 nm = nmethod::new_nmethod(method, | |
940 compile_id(), | |
941 entry_bci, | |
942 offsets, | |
943 orig_pc_offset, | |
944 debug_info(), dependencies(), code_buffer, | |
945 frame_words, oop_map_set, | |
946 handler_table, inc_table, | |
947 compiler, comp_level); | |
948 | |
949 // Free codeBlobs | |
950 code_buffer->free_blob(); | |
951 | |
952 // stress test 6243940 by immediately making the method | |
953 // non-entrant behind the system's back. This has serious | |
954 // side effects on the code cache and is not meant for | |
955 // general stress testing | |
956 if (nm != NULL && StressNonEntrant) { | |
957 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
958 NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(), | |
959 SharedRuntime::get_handle_wrong_method_stub()); | |
960 } | |
961 | |
962 if (nm == NULL) { | |
963 // The CodeCache is full. Print out warning and disable compilation. | |
964 record_failure("code cache is full"); | |
965 UseInterpreter = true; | |
966 if (UseCompiler || AlwaysCompileLoopMethods ) { | |
967 #ifndef PRODUCT | |
968 warning("CodeCache is full. Compiler has been disabled"); | |
969 if (CompileTheWorld || ExitOnFullCodeCache) { | |
970 before_exit(JavaThread::current()); | |
971 exit_globals(); // will delete tty | |
972 vm_direct_exit(CompileTheWorld ? 0 : 1); | |
973 } | |
974 #endif | |
975 UseCompiler = false; | |
976 AlwaysCompileLoopMethods = false; | |
977 } | |
978 } else { | |
979 NOT_PRODUCT(nm->set_has_debug_info(has_debug_info); ) | |
980 nm->set_has_unsafe_access(has_unsafe_access); | |
981 | |
982 // Record successful registration. | |
983 // (Put nm into the task handle *before* publishing to the Java heap.) | |
984 if (task() != NULL) task()->set_code(nm); | |
985 | |
986 if (entry_bci == InvocationEntryBci) { | |
987 #ifdef TIERED | |
988 // If there is an old version we're done with it | |
989 nmethod* old = method->code(); | |
990 if (TraceMethodReplacement && old != NULL) { | |
991 ResourceMark rm; | |
992 char *method_name = method->name_and_sig_as_C_string(); | |
993 tty->print_cr("Replacing method %s", method_name); | |
994 } | |
995 if (old != NULL ) { | |
996 old->make_not_entrant(); | |
997 } | |
998 #endif // TIERED | |
999 if (TraceNMethodInstalls ) { | |
1000 ResourceMark rm; | |
1001 char *method_name = method->name_and_sig_as_C_string(); | |
1002 ttyLocker ttyl; | |
1003 tty->print_cr("Installing method (%d) %s ", | |
1004 comp_level, | |
1005 method_name); | |
1006 } | |
1007 // Allow the code to be executed | |
1008 method->set_code(method, nm); | |
1009 } else { | |
1010 if (TraceNMethodInstalls ) { | |
1011 ResourceMark rm; | |
1012 char *method_name = method->name_and_sig_as_C_string(); | |
1013 ttyLocker ttyl; | |
1014 tty->print_cr("Installing osr method (%d) %s @ %d", | |
1015 comp_level, | |
1016 method_name, | |
1017 entry_bci); | |
1018 } | |
1019 instanceKlass::cast(method->method_holder())->add_osr_nmethod(nm); | |
1020 | |
1021 } | |
1022 } | |
1023 } | |
1024 // JVMTI -- compiled method notification (must be done outside lock) | |
1025 if (nm != NULL) { | |
1026 nm->post_compiled_method_load_event(); | |
1027 } | |
1028 | |
1029 } | |
1030 | |
1031 | |
1032 // ------------------------------------------------------------------ | |
1033 // ciEnv::find_system_klass | |
1034 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { | |
1035 VM_ENTRY_MARK; | |
1036 return get_klass_by_name_impl(NULL, klass_name, false); | |
1037 } | |
1038 | |
1039 // ------------------------------------------------------------------ | |
1040 // ciEnv::comp_level | |
1041 int ciEnv::comp_level() { | |
1042 if (task() == NULL) return CompLevel_full_optimization; | |
1043 return task()->comp_level(); | |
1044 } | |
1045 | |
1046 // ------------------------------------------------------------------ | |
1047 // ciEnv::compile_id | |
1048 uint ciEnv::compile_id() { | |
1049 if (task() == NULL) return 0; | |
1050 return task()->compile_id(); | |
1051 } | |
1052 | |
1053 // ------------------------------------------------------------------ | |
1054 // ciEnv::notice_inlined_method() | |
1055 void ciEnv::notice_inlined_method(ciMethod* method) { | |
1056 _num_inlined_bytecodes += method->code_size(); | |
1057 } | |
1058 | |
1059 // ------------------------------------------------------------------ | |
1060 // ciEnv::num_inlined_bytecodes() | |
1061 int ciEnv::num_inlined_bytecodes() const { | |
1062 return _num_inlined_bytecodes; | |
1063 } | |
1064 | |
1065 // ------------------------------------------------------------------ | |
1066 // ciEnv::record_failure() | |
1067 void ciEnv::record_failure(const char* reason) { | |
1068 if (log() != NULL) { | |
1069 log()->elem("failure reason='%s'", reason); | |
1070 } | |
1071 if (_failure_reason == NULL) { | |
1072 // Record the first failure reason. | |
1073 _failure_reason = reason; | |
1074 } | |
1075 } | |
1076 | |
1077 // ------------------------------------------------------------------ | |
1078 // ciEnv::record_method_not_compilable() | |
1079 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { | |
1080 int new_compilable = | |
1081 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; | |
1082 | |
1083 // Only note transitions to a worse state | |
1084 if (new_compilable > _compilable) { | |
1085 if (log() != NULL) { | |
1086 if (all_tiers) { | |
1087 log()->elem("method_not_compilable"); | |
1088 } else { | |
1089 log()->elem("method_not_compilable_at_tier"); | |
1090 } | |
1091 } | |
1092 _compilable = new_compilable; | |
1093 | |
1094 // Reset failure reason; this one is more important. | |
1095 _failure_reason = NULL; | |
1096 record_failure(reason); | |
1097 } | |
1098 } | |
1099 | |
1100 // ------------------------------------------------------------------ | |
1101 // ciEnv::record_out_of_memory_failure() | |
1102 void ciEnv::record_out_of_memory_failure() { | |
1103 // If memory is low, we stop compiling methods. | |
1104 record_method_not_compilable("out of memory"); | |
1105 } |