Mercurial > hg > truffle
annotate src/share/vm/ci/ciEnv.cpp @ 3669:53636e2c9d03
No longer use shared ciFactory. Remove make_global usage in code installer.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Fri, 18 Nov 2011 14:14:37 +0100 |
parents | c7d4198a9bce |
children | 7958ebb561b0 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2011, 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 "ci/ciConstant.hpp" | |
27 #include "ci/ciEnv.hpp" | |
28 #include "ci/ciField.hpp" | |
29 #include "ci/ciInstance.hpp" | |
30 #include "ci/ciInstanceKlass.hpp" | |
31 #include "ci/ciInstanceKlassKlass.hpp" | |
32 #include "ci/ciMethod.hpp" | |
33 #include "ci/ciNullObject.hpp" | |
34 #include "ci/ciObjArrayKlassKlass.hpp" | |
35 #include "ci/ciTypeArrayKlassKlass.hpp" | |
36 #include "ci/ciUtilities.hpp" | |
37 #include "classfile/systemDictionary.hpp" | |
38 #include "classfile/vmSymbols.hpp" | |
39 #include "code/scopeDesc.hpp" | |
40 #include "compiler/compileBroker.hpp" | |
41 #include "compiler/compileLog.hpp" | |
42 #include "compiler/compilerOracle.hpp" | |
43 #include "gc_interface/collectedHeap.inline.hpp" | |
44 #include "interpreter/linkResolver.hpp" | |
45 #include "memory/allocation.inline.hpp" | |
46 #include "memory/oopFactory.hpp" | |
47 #include "memory/universe.inline.hpp" | |
48 #include "oops/methodDataOop.hpp" | |
49 #include "oops/objArrayKlass.hpp" | |
50 #include "oops/oop.inline.hpp" | |
51 #include "oops/oop.inline2.hpp" | |
52 #include "prims/jvmtiExport.hpp" | |
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53 #include "prims/methodHandleWalk.hpp" |
1972 | 54 #include "runtime/init.hpp" |
55 #include "runtime/reflection.hpp" | |
56 #include "runtime/sharedRuntime.hpp" | |
57 #include "utilities/dtrace.hpp" | |
58 #ifdef COMPILER1 | |
59 #include "c1/c1_Runtime1.hpp" | |
60 #endif | |
61 #ifdef COMPILER2 | |
62 #include "opto/runtime.hpp" | |
63 #endif | |
0 | 64 |
65 // ciEnv | |
66 // | |
67 // This class is the top level broker for requests from the compiler | |
68 // to the VM. | |
69 | |
70 ciObject* ciEnv::_null_object_instance; | |
71 ciMethodKlass* ciEnv::_method_klass_instance; | |
72 ciKlassKlass* ciEnv::_klass_klass_instance; | |
73 ciInstanceKlassKlass* ciEnv::_instance_klass_klass_instance; | |
74 ciTypeArrayKlassKlass* ciEnv::_type_array_klass_klass_instance; | |
75 ciObjArrayKlassKlass* ciEnv::_obj_array_klass_klass_instance; | |
76 | |
1142 | 77 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; |
78 WK_KLASSES_DO(WK_KLASS_DEFN) | |
79 #undef WK_KLASS_DEFN | |
0 | 80 |
81 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; | |
82 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; | |
83 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; | |
84 | |
85 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; | |
86 jobject ciEnv::_ArrayStoreException_handle = NULL; | |
87 jobject ciEnv::_ClassCastException_handle = NULL; | |
88 | |
89 #ifndef PRODUCT | |
90 static bool firstEnv = true; | |
91 #endif /* PRODUCT */ | |
92 | |
93 // ------------------------------------------------------------------ | |
94 // ciEnv::ciEnv | |
95 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) { | |
96 VM_ENTRY_MARK; | |
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97 CompilerThread* compiler_thread = CompilerThread::current(); |
0 | 98 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. |
99 thread->set_env(this); | |
100 assert(ciEnv::current() == this, "sanity"); | |
101 | |
102 _oop_recorder = NULL; | |
103 _debug_info = NULL; | |
104 _dependencies = NULL; | |
105 _failure_reason = NULL; | |
106 _compilable = MethodCompilable; | |
107 _break_at_compile = false; | |
108 _compiler_data = NULL; | |
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109 //#ifndef PRODUCT |
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110 // assert(!firstEnv, "not initialized properly"); |
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111 //#endif /* !PRODUCT */ |
0 | 112 |
113 _system_dictionary_modification_counter = system_dictionary_modification_counter; | |
114 _num_inlined_bytecodes = 0; | |
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115 assert(task == NULL || compiler_thread->task() == task, "sanity"); |
0 | 116 _task = task; |
117 _log = NULL; | |
118 | |
119 // Temporary buffer for creating symbols and such. | |
120 _name_buffer = NULL; | |
121 _name_buffer_len = 0; | |
122 | |
123 _arena = &_ciEnv_arena; | |
124 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
125 | |
126 // Preload commonly referenced system ciObjects. | |
127 | |
128 // During VM initialization, these instances have not yet been created. | |
129 // Assertions ensure that these instances are not accessed before | |
130 // their initialization. | |
131 | |
132 assert(Universe::is_fully_initialized(), "should be complete"); | |
133 | |
134 oop o = Universe::null_ptr_exception_instance(); | |
135 assert(o != NULL, "should have been initialized"); | |
136 _NullPointerException_instance = get_object(o)->as_instance(); | |
137 o = Universe::arithmetic_exception_instance(); | |
138 assert(o != NULL, "should have been initialized"); | |
139 _ArithmeticException_instance = get_object(o)->as_instance(); | |
140 | |
141 _ArrayIndexOutOfBoundsException_instance = NULL; | |
142 _ArrayStoreException_instance = NULL; | |
143 _ClassCastException_instance = NULL; | |
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144 _the_null_string = NULL; |
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145 _the_min_jint_string = NULL; |
0 | 146 } |
147 | |
148 ciEnv::ciEnv(Arena* arena) { | |
149 ASSERT_IN_VM; | |
150 | |
151 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
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152 JavaThread* current_thread = JavaThread::current(); |
0 | 153 assert(current_thread->env() == NULL, "must be"); |
154 current_thread->set_env(this); | |
155 assert(ciEnv::current() == this, "sanity"); | |
156 | |
157 _oop_recorder = NULL; | |
158 _debug_info = NULL; | |
159 _dependencies = NULL; | |
160 _failure_reason = NULL; | |
161 _compilable = MethodCompilable_never; | |
162 _break_at_compile = false; | |
163 _compiler_data = NULL; | |
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164 //#ifndef PRODUCT |
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165 // assert(firstEnv, "must be first"); |
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166 // firstEnv = false; |
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167 //#endif /* !PRODUCT */ |
0 | 168 |
169 _system_dictionary_modification_counter = 0; | |
170 _num_inlined_bytecodes = 0; | |
171 _task = NULL; | |
172 _log = NULL; | |
173 | |
174 // Temporary buffer for creating symbols and such. | |
175 _name_buffer = NULL; | |
176 _name_buffer_len = 0; | |
177 | |
178 _arena = arena; | |
179 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
180 | |
181 // Preload commonly referenced system ciObjects. | |
182 | |
183 // During VM initialization, these instances have not yet been created. | |
184 // Assertions ensure that these instances are not accessed before | |
185 // their initialization. | |
186 | |
187 assert(Universe::is_fully_initialized(), "must be"); | |
188 | |
189 oop o = Universe::null_ptr_exception_instance(); | |
190 assert(o != NULL, "should have been initialized"); | |
191 _NullPointerException_instance = get_object(o)->as_instance(); | |
192 o = Universe::arithmetic_exception_instance(); | |
193 assert(o != NULL, "should have been initialized"); | |
194 _ArithmeticException_instance = get_object(o)->as_instance(); | |
195 | |
196 _ArrayIndexOutOfBoundsException_instance = NULL; | |
197 _ArrayStoreException_instance = NULL; | |
198 _ClassCastException_instance = NULL; | |
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199 _the_null_string = NULL; |
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200 _the_min_jint_string = NULL; |
0 | 201 } |
202 | |
203 ciEnv::~ciEnv() { | |
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204 _factory->remove_symbols(); |
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205 JavaThread::current()->set_env(NULL); |
0 | 206 } |
207 | |
208 // ------------------------------------------------------------------ | |
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209 // Cache Jvmti state |
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210 void ciEnv::cache_jvmti_state() { |
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211 VM_ENTRY_MARK; |
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212 // Get Jvmti capabilities under lock to get consistant values. |
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213 MutexLocker mu(JvmtiThreadState_lock); |
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214 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
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215 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
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216 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
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217 } |
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218 |
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219 // ------------------------------------------------------------------ |
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220 // Cache DTrace flags |
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221 void ciEnv::cache_dtrace_flags() { |
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222 // Need lock? |
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223 _dtrace_extended_probes = ExtendedDTraceProbes; |
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224 if (_dtrace_extended_probes) { |
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225 _dtrace_monitor_probes = true; |
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226 _dtrace_method_probes = true; |
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227 _dtrace_alloc_probes = true; |
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228 } else { |
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229 _dtrace_monitor_probes = DTraceMonitorProbes; |
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230 _dtrace_method_probes = DTraceMethodProbes; |
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231 _dtrace_alloc_probes = DTraceAllocProbes; |
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232 } |
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233 } |
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234 |
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235 // ------------------------------------------------------------------ |
0 | 236 // helper for lazy exception creation |
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237 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { |
0 | 238 VM_ENTRY_MARK; |
239 if (handle == NULL) { | |
240 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. | |
241 klassOop k = SystemDictionary::find(name, Handle(), Handle(), THREAD); | |
242 jobject objh = NULL; | |
243 if (!HAS_PENDING_EXCEPTION && k != NULL) { | |
244 oop obj = instanceKlass::cast(k)->allocate_permanent_instance(THREAD); | |
245 if (!HAS_PENDING_EXCEPTION) | |
246 objh = JNIHandles::make_global(obj); | |
247 } | |
248 if (HAS_PENDING_EXCEPTION) { | |
249 CLEAR_PENDING_EXCEPTION; | |
250 } else { | |
251 handle = objh; | |
252 } | |
253 } | |
254 oop obj = JNIHandles::resolve(handle); | |
255 return obj == NULL? NULL: get_object(obj)->as_instance(); | |
256 } | |
257 | |
258 // ------------------------------------------------------------------ | |
259 // ciEnv::ArrayIndexOutOfBoundsException_instance, etc. | |
260 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { | |
261 if (_ArrayIndexOutOfBoundsException_instance == NULL) { | |
262 _ArrayIndexOutOfBoundsException_instance | |
263 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, | |
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264 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); |
0 | 265 } |
266 return _ArrayIndexOutOfBoundsException_instance; | |
267 } | |
268 ciInstance* ciEnv::ArrayStoreException_instance() { | |
269 if (_ArrayStoreException_instance == NULL) { | |
270 _ArrayStoreException_instance | |
271 = get_or_create_exception(_ArrayStoreException_handle, | |
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272 vmSymbols::java_lang_ArrayStoreException()); |
0 | 273 } |
274 return _ArrayStoreException_instance; | |
275 } | |
276 ciInstance* ciEnv::ClassCastException_instance() { | |
277 if (_ClassCastException_instance == NULL) { | |
278 _ClassCastException_instance | |
279 = get_or_create_exception(_ClassCastException_handle, | |
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280 vmSymbols::java_lang_ClassCastException()); |
0 | 281 } |
282 return _ClassCastException_instance; | |
283 } | |
284 | |
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285 ciInstance* ciEnv::the_null_string() { |
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286 if (_the_null_string == NULL) { |
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287 VM_ENTRY_MARK; |
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288 _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
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289 } |
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290 return _the_null_string; |
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291 } |
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292 |
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293 ciInstance* ciEnv::the_min_jint_string() { |
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294 if (_the_min_jint_string == NULL) { |
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295 VM_ENTRY_MARK; |
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296 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); |
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297 } |
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298 return _the_min_jint_string; |
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299 } |
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300 |
0 | 301 // ------------------------------------------------------------------ |
302 // ciEnv::get_method_from_handle | |
303 ciMethod* ciEnv::get_method_from_handle(jobject method) { | |
304 VM_ENTRY_MARK; | |
305 return get_object(JNIHandles::resolve(method))->as_method(); | |
306 } | |
307 | |
308 // ------------------------------------------------------------------ | |
309 // ciEnv::make_array | |
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310 ciArray* ciEnv::make_system_array(GrowableArray<ciObject*>* objects) { |
0 | 311 VM_ENTRY_MARK; |
312 int length = objects->length(); | |
313 objArrayOop a = oopFactory::new_system_objArray(length, THREAD); | |
314 if (HAS_PENDING_EXCEPTION) { | |
315 CLEAR_PENDING_EXCEPTION; | |
316 record_out_of_memory_failure(); | |
317 return NULL; | |
318 } | |
319 for (int i = 0; i < length; i++) { | |
320 a->obj_at_put(i, objects->at(i)->get_oop()); | |
321 } | |
322 assert(a->is_perm(), ""); | |
323 return get_object(a)->as_array(); | |
324 } | |
325 | |
326 | |
327 // ------------------------------------------------------------------ | |
328 // ciEnv::array_element_offset_in_bytes | |
329 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { | |
330 VM_ENTRY_MARK; | |
331 objArrayOop a = (objArrayOop)a_h->get_oop(); | |
332 assert(a->is_objArray(), ""); | |
333 int length = a->length(); | |
334 oop o = o_h->get_oop(); | |
335 for (int i = 0; i < length; i++) { | |
336 if (a->obj_at(i) == o) return i; | |
337 } | |
338 return -1; | |
339 } | |
340 | |
341 | |
342 // ------------------------------------------------------------------ | |
343 // ciEnv::check_klass_accessiblity | |
344 // | |
345 // Note: the logic of this method should mirror the logic of | |
346 // constantPoolOopDesc::verify_constant_pool_resolve. | |
347 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, | |
348 klassOop resolved_klass) { | |
349 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { | |
350 return true; | |
351 } | |
352 if (accessing_klass->is_obj_array()) { | |
353 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); | |
354 } | |
355 if (!accessing_klass->is_instance_klass()) { | |
356 return true; | |
357 } | |
358 | |
359 if (resolved_klass->klass_part()->oop_is_objArray()) { | |
360 // Find the element klass, if this is an array. | |
361 resolved_klass = objArrayKlass::cast(resolved_klass)->bottom_klass(); | |
362 } | |
363 if (resolved_klass->klass_part()->oop_is_instance()) { | |
364 return Reflection::verify_class_access(accessing_klass->get_klassOop(), | |
365 resolved_klass, | |
366 true); | |
367 } | |
368 return true; | |
369 } | |
370 | |
371 // ------------------------------------------------------------------ | |
372 // ciEnv::get_klass_by_name_impl | |
373 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, | |
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374 constantPoolHandle cpool, |
0 | 375 ciSymbol* name, |
376 bool require_local) { | |
377 ASSERT_IN_VM; | |
378 EXCEPTION_CONTEXT; | |
379 | |
380 // Now we need to check the SystemDictionary | |
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381 Symbol* sym = name->get_symbol(); |
0 | 382 if (sym->byte_at(0) == 'L' && |
383 sym->byte_at(sym->utf8_length()-1) == ';') { | |
384 // This is a name from a signature. Strip off the trimmings. | |
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385 // Call recursive to keep scope of strippedsym. |
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386 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, |
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387 sym->utf8_length()-2, |
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388 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); |
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389 ciSymbol* strippedname = get_symbol(strippedsym); |
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390 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); |
0 | 391 } |
392 | |
393 // Check for prior unloaded klass. The SystemDictionary's answers | |
394 // can vary over time but the compiler needs consistency. | |
395 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); | |
396 if (unloaded_klass != NULL) { | |
397 if (require_local) return NULL; | |
398 return unloaded_klass; | |
399 } | |
400 | |
401 Handle loader(THREAD, (oop)NULL); | |
402 Handle domain(THREAD, (oop)NULL); | |
403 if (accessing_klass != NULL) { | |
404 loader = Handle(THREAD, accessing_klass->loader()); | |
405 domain = Handle(THREAD, accessing_klass->protection_domain()); | |
406 } | |
407 | |
408 // setup up the proper type to return on OOM | |
409 ciKlass* fail_type; | |
410 if (sym->byte_at(0) == '[') { | |
411 fail_type = _unloaded_ciobjarrayklass; | |
412 } else { | |
413 fail_type = _unloaded_ciinstance_klass; | |
414 } | |
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415 KlassHandle found_klass; |
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416 { |
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417 ttyUnlocker ttyul; // release tty lock to avoid ordering problems |
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418 MutexLocker ml(Compile_lock); |
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419 klassOop kls; |
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420 if (!require_local) { |
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421 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, |
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422 KILL_COMPILE_ON_FATAL_(fail_type)); |
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423 } else { |
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424 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, |
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425 KILL_COMPILE_ON_FATAL_(fail_type)); |
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426 } |
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427 found_klass = KlassHandle(THREAD, kls); |
0 | 428 } |
429 | |
430 // If we fail to find an array klass, look again for its element type. | |
431 // The element type may be available either locally or via constraints. | |
432 // In either case, if we can find the element type in the system dictionary, | |
433 // we must build an array type around it. The CI requires array klasses | |
434 // to be loaded if their element klasses are loaded, except when memory | |
435 // is exhausted. | |
436 if (sym->byte_at(0) == '[' && | |
437 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { | |
438 // We have an unloaded array. | |
439 // Build it on the fly if the element class exists. | |
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440 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, |
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441 sym->utf8_length()-1, |
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442 KILL_COMPILE_ON_FATAL_(fail_type)); |
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443 |
0 | 444 // Get element ciKlass recursively. |
445 ciKlass* elem_klass = | |
446 get_klass_by_name_impl(accessing_klass, | |
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447 cpool, |
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448 get_symbol(elem_sym), |
0 | 449 require_local); |
450 if (elem_klass != NULL && elem_klass->is_loaded()) { | |
451 // Now make an array for it | |
452 return ciObjArrayKlass::make_impl(elem_klass); | |
453 } | |
454 } | |
455 | |
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456 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { |
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457 // Look inside the constant pool for pre-resolved class entries. |
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458 for (int i = cpool->length() - 1; i >= 1; i--) { |
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459 if (cpool->tag_at(i).is_klass()) { |
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460 klassOop kls = cpool->resolved_klass_at(i); |
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461 if (Klass::cast(kls)->name() == sym) { |
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462 found_klass = KlassHandle(THREAD, kls); |
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463 break; |
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464 } |
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465 } |
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466 } |
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467 } |
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468 |
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469 if (found_klass() != NULL) { |
0 | 470 // Found it. Build a CI handle. |
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471 return get_object(found_klass())->as_klass(); |
0 | 472 } |
473 | |
474 if (require_local) return NULL; | |
475 // Not yet loaded into the VM, or not governed by loader constraints. | |
476 // Make a CI representative for it. | |
477 return get_unloaded_klass(accessing_klass, name); | |
478 } | |
479 | |
480 // ------------------------------------------------------------------ | |
481 // ciEnv::get_klass_by_name | |
482 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, | |
483 ciSymbol* klass_name, | |
484 bool require_local) { | |
485 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, | |
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486 constantPoolHandle(), |
0 | 487 klass_name, |
488 require_local);) | |
489 } | |
490 | |
491 // ------------------------------------------------------------------ | |
492 // ciEnv::get_klass_by_index_impl | |
493 // | |
494 // Implementation of get_klass_by_index. | |
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495 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 496 int index, |
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497 bool& is_accessible, |
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498 ciInstanceKlass* accessor) { |
0 | 499 EXCEPTION_CONTEXT; |
500 KlassHandle klass (THREAD, constantPoolOopDesc::klass_at_if_loaded(cpool, index)); | |
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501 Symbol* klass_name = NULL; |
0 | 502 if (klass.is_null()) { |
503 // The klass has not been inserted into the constant pool. | |
504 // Try to look it up by name. | |
505 { | |
506 // We have to lock the cpool to keep the oop from being resolved | |
507 // while we are accessing it. | |
508 ObjectLocker ol(cpool, THREAD); | |
509 | |
510 constantTag tag = cpool->tag_at(index); | |
511 if (tag.is_klass()) { | |
512 // The klass has been inserted into the constant pool | |
513 // very recently. | |
514 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); | |
515 } else if (tag.is_symbol()) { | |
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516 klass_name = cpool->symbol_at(index); |
0 | 517 } else { |
518 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag"); | |
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519 klass_name = cpool->unresolved_klass_at(index); |
0 | 520 } |
521 } | |
522 } | |
523 | |
524 if (klass.is_null()) { | |
525 // Not found in constant pool. Use the name to do the lookup. | |
526 ciKlass* k = get_klass_by_name_impl(accessor, | |
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527 cpool, |
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528 get_symbol(klass_name), |
0 | 529 false); |
530 // Calculate accessibility the hard way. | |
531 if (!k->is_loaded()) { | |
532 is_accessible = false; | |
533 } else if (k->loader() != accessor->loader() && | |
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534 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { |
0 | 535 // Loaded only remotely. Not linked yet. |
536 is_accessible = false; | |
537 } else { | |
538 // Linked locally, and we must also check public/private, etc. | |
539 is_accessible = check_klass_accessibility(accessor, k->get_klassOop()); | |
540 } | |
541 return k; | |
542 } | |
543 | |
544 // Check for prior unloaded klass. The SystemDictionary's answers | |
545 // can vary over time but the compiler needs consistency. | |
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546 ciSymbol* name = get_symbol(klass()->klass_part()->name()); |
0 | 547 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); |
548 if (unloaded_klass != NULL) { | |
549 is_accessible = false; | |
550 return unloaded_klass; | |
551 } | |
552 | |
553 // It is known to be accessible, since it was found in the constant pool. | |
554 is_accessible = true; | |
555 return get_object(klass())->as_klass(); | |
556 } | |
557 | |
558 // ------------------------------------------------------------------ | |
559 // ciEnv::get_klass_by_index | |
560 // | |
561 // Get a klass from the constant pool. | |
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562 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, |
0 | 563 int index, |
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564 bool& is_accessible, |
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565 ciInstanceKlass* accessor) { |
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566 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) |
0 | 567 } |
568 | |
569 // ------------------------------------------------------------------ | |
570 // ciEnv::get_constant_by_index_impl | |
571 // | |
572 // Implementation of get_constant_by_index(). | |
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573 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, |
1602 | 574 int pool_index, int cache_index, |
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575 ciInstanceKlass* accessor) { |
1602 | 576 bool ignore_will_link; |
0 | 577 EXCEPTION_CONTEXT; |
1602 | 578 int index = pool_index; |
579 if (cache_index >= 0) { | |
580 assert(index < 0, "only one kind of index at a time"); | |
581 ConstantPoolCacheEntry* cpc_entry = cpool->cache()->entry_at(cache_index); | |
582 index = cpc_entry->constant_pool_index(); | |
583 oop obj = cpc_entry->f1(); | |
584 if (obj != NULL) { | |
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585 assert(obj->is_instance() || obj->is_array(), "must be a Java reference"); |
1602 | 586 ciObject* ciobj = get_object(obj); |
587 return ciConstant(T_OBJECT, ciobj); | |
588 } | |
589 } | |
0 | 590 constantTag tag = cpool->tag_at(index); |
591 if (tag.is_int()) { | |
592 return ciConstant(T_INT, (jint)cpool->int_at(index)); | |
593 } else if (tag.is_long()) { | |
594 return ciConstant((jlong)cpool->long_at(index)); | |
595 } else if (tag.is_float()) { | |
596 return ciConstant((jfloat)cpool->float_at(index)); | |
597 } else if (tag.is_double()) { | |
598 return ciConstant((jdouble)cpool->double_at(index)); | |
599 } else if (tag.is_string() || tag.is_unresolved_string()) { | |
431
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600 oop string = NULL; |
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601 if (cpool->is_pseudo_string_at(index)) { |
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602 string = cpool->pseudo_string_at(index); |
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603 } else { |
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604 string = cpool->string_at(index, THREAD); |
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605 if (HAS_PENDING_EXCEPTION) { |
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606 CLEAR_PENDING_EXCEPTION; |
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607 record_out_of_memory_failure(); |
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608 return ciConstant(); |
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609 } |
0 | 610 } |
611 ciObject* constant = get_object(string); | |
612 assert (constant->is_instance(), "must be an instance, or not? "); | |
613 return ciConstant(T_OBJECT, constant); | |
614 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
615 // 4881222: allow ldc to take a class type | |
1602 | 616 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); |
0 | 617 if (HAS_PENDING_EXCEPTION) { |
618 CLEAR_PENDING_EXCEPTION; | |
619 record_out_of_memory_failure(); | |
620 return ciConstant(); | |
621 } | |
622 assert (klass->is_instance_klass() || klass->is_array_klass(), | |
623 "must be an instance or array klass "); | |
1602 | 624 return ciConstant(T_OBJECT, klass->java_mirror()); |
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625 } else if (tag.is_object()) { |
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626 oop obj = cpool->object_at(index); |
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627 assert(obj->is_instance() || obj->is_array(), "must be a Java reference"); |
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628 ciObject* ciobj = get_object(obj); |
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629 return ciConstant(T_OBJECT, ciobj); |
1602 | 630 } else if (tag.is_method_type()) { |
631 // must execute Java code to link this CP entry into cache[i].f1 | |
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632 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); |
1602 | 633 ciObject* ciobj = get_unloaded_method_type_constant(signature); |
634 return ciConstant(T_OBJECT, ciobj); | |
635 } else if (tag.is_method_handle()) { | |
636 // must execute Java code to link this CP entry into cache[i].f1 | |
637 int ref_kind = cpool->method_handle_ref_kind_at(index); | |
638 int callee_index = cpool->method_handle_klass_index_at(index); | |
639 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); | |
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640 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); |
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641 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); |
1602 | 642 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); |
643 return ciConstant(T_OBJECT, ciobj); | |
0 | 644 } else { |
645 ShouldNotReachHere(); | |
646 return ciConstant(); | |
647 } | |
648 } | |
649 | |
650 // ------------------------------------------------------------------ | |
651 // ciEnv::get_constant_by_index | |
652 // | |
653 // Pull a constant out of the constant pool. How appropriate. | |
654 // | |
655 // Implementation note: this query is currently in no way cached. | |
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656 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, |
1602 | 657 int pool_index, int cache_index, |
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658 ciInstanceKlass* accessor) { |
1602 | 659 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) |
0 | 660 } |
661 | |
662 // ------------------------------------------------------------------ | |
663 // ciEnv::get_field_by_index_impl | |
664 // | |
665 // Implementation of get_field_by_index. | |
666 // | |
667 // Implementation note: the results of field lookups are cached | |
668 // in the accessor klass. | |
669 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, | |
670 int index) { | |
671 ciConstantPoolCache* cache = accessor->field_cache(); | |
672 if (cache == NULL) { | |
673 ciField* field = new (arena()) ciField(accessor, index); | |
674 return field; | |
675 } else { | |
676 ciField* field = (ciField*)cache->get(index); | |
677 if (field == NULL) { | |
678 field = new (arena()) ciField(accessor, index); | |
679 cache->insert(index, field); | |
680 } | |
681 return field; | |
682 } | |
683 } | |
684 | |
685 // ------------------------------------------------------------------ | |
686 // ciEnv::get_field_by_index | |
687 // | |
688 // Get a field by index from a klass's constant pool. | |
689 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, | |
690 int index) { | |
691 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) | |
692 } | |
693 | |
694 // ------------------------------------------------------------------ | |
695 // ciEnv::lookup_method | |
696 // | |
697 // Perform an appropriate method lookup based on accessor, holder, | |
698 // name, signature, and bytecode. | |
699 methodOop ciEnv::lookup_method(instanceKlass* accessor, | |
700 instanceKlass* holder, | |
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701 Symbol* name, |
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702 Symbol* sig, |
0 | 703 Bytecodes::Code bc) { |
704 EXCEPTION_CONTEXT; | |
705 KlassHandle h_accessor(THREAD, accessor); | |
706 KlassHandle h_holder(THREAD, holder); | |
707 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); | |
708 methodHandle dest_method; | |
709 switch (bc) { | |
710 case Bytecodes::_invokestatic: | |
711 dest_method = | |
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712 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); |
0 | 713 break; |
714 case Bytecodes::_invokespecial: | |
715 dest_method = | |
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716 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); |
0 | 717 break; |
718 case Bytecodes::_invokeinterface: | |
719 dest_method = | |
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720 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, |
0 | 721 h_accessor, true); |
722 break; | |
723 case Bytecodes::_invokevirtual: | |
724 dest_method = | |
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725 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, |
0 | 726 h_accessor, true); |
727 break; | |
728 default: ShouldNotReachHere(); | |
729 } | |
730 | |
731 return dest_method(); | |
732 } | |
733 | |
734 | |
735 // ------------------------------------------------------------------ | |
736 // ciEnv::get_method_by_index_impl | |
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737 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, |
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738 int index, Bytecodes::Code bc, |
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739 ciInstanceKlass* accessor) { |
0 | 740 int holder_index = cpool->klass_ref_index_at(index); |
741 bool holder_is_accessible; | |
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742 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
0 | 743 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); |
744 | |
745 // Get the method's name and signature. | |
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746 Symbol* name_sym = cpool->name_ref_at(index); |
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747 Symbol* sig_sym = cpool->signature_ref_at(index); |
0 | 748 |
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749 if (cpool->has_preresolution() |
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750 || (holder == ciEnv::MethodHandle_klass() && |
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751 methodOopDesc::is_method_handle_invoke_name(name_sym))) { |
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752 // Short-circuit lookups for JSR 292-related call sites. |
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753 // That is, do not rely only on name-based lookups, because they may fail |
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754 // if the names are not resolvable in the boot class loader (7056328). |
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755 switch (bc) { |
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756 case Bytecodes::_invokevirtual: |
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757 case Bytecodes::_invokeinterface: |
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758 case Bytecodes::_invokespecial: |
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759 case Bytecodes::_invokestatic: |
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760 { |
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761 methodOop m = constantPoolOopDesc::method_at_if_loaded(cpool, index, bc); |
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762 if (m != NULL) { |
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763 return get_object(m)->as_method(); |
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764 } |
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765 } |
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766 } |
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767 } |
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768 |
0 | 769 if (holder_is_accessible) { // Our declared holder is loaded. |
770 instanceKlass* lookup = declared_holder->get_instanceKlass(); | |
771 methodOop m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); | |
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772 if (m != NULL && |
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773 (bc == Bytecodes::_invokestatic |
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774 ? instanceKlass::cast(m->method_holder())->is_not_initialized() |
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775 : !instanceKlass::cast(m->method_holder())->is_loaded())) { |
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776 m = NULL; |
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777 } |
0 | 778 if (m != NULL) { |
779 // We found the method. | |
780 return get_object(m)->as_method(); | |
781 } | |
782 } | |
783 | |
784 // Either the declared holder was not loaded, or the method could | |
785 // not be found. Create a dummy ciMethod to represent the failed | |
786 // lookup. | |
787 | |
788 return get_unloaded_method(declared_holder, | |
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789 get_symbol(name_sym), |
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790 get_symbol(sig_sym)); |
0 | 791 } |
792 | |
793 | |
794 // ------------------------------------------------------------------ | |
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795 // ciEnv::get_fake_invokedynamic_method_impl |
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796 ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool, |
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797 int index, Bytecodes::Code bc) { |
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798 // Compare the following logic with InterpreterRuntime::resolve_invokedynamic. |
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799 assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic"); |
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800 |
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801 bool is_resolved = cpool->cache()->main_entry_at(index)->is_resolved(bc); |
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802 if (is_resolved && cpool->cache()->secondary_entry_at(index)->is_f1_null()) |
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803 // FIXME: code generation could allow for null (unlinked) call site |
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804 is_resolved = false; |
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805 |
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806 // Call site might not be resolved yet. We could create a real invoker method from the |
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807 // compiler, but it is simpler to stop the code path here with an unlinked method. |
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808 if (!is_resolved) { |
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809 ciInstanceKlass* mh_klass = get_object(SystemDictionary::MethodHandle_klass())->as_instance_klass(); |
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810 ciSymbol* sig_sym = get_symbol(cpool->signature_ref_at(index)); |
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811 return get_unloaded_method(mh_klass, ciSymbol::invokeExact_name(), sig_sym); |
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812 } |
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813 |
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814 // Get the invoker methodOop from the constant pool. |
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815 oop f1_value = cpool->cache()->main_entry_at(index)->f1(); |
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816 methodOop signature_invoker = (methodOop) f1_value; |
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817 assert(signature_invoker != NULL && signature_invoker->is_method() && signature_invoker->is_method_handle_invoke(), |
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818 "correct result from LinkResolver::resolve_invokedynamic"); |
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819 |
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820 return get_object(signature_invoker)->as_method(); |
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821 } |
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822 |
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823 |
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824 // ------------------------------------------------------------------ |
0 | 825 // ciEnv::get_instance_klass_for_declared_method_holder |
826 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { | |
827 // For the case of <array>.clone(), the method holder can be a ciArrayKlass | |
828 // instead of a ciInstanceKlass. For that case simply pretend that the | |
829 // declared holder is Object.clone since that's where the call will bottom out. | |
830 // A more correct fix would trickle out through many interfaces in CI, | |
831 // requiring ciInstanceKlass* to become ciKlass* and many more places would | |
832 // require checks to make sure the expected type was found. Given that this | |
833 // only occurs for clone() the more extensive fix seems like overkill so | |
834 // instead we simply smear the array type into Object. | |
835 if (method_holder->is_instance_klass()) { | |
836 return method_holder->as_instance_klass(); | |
837 } else if (method_holder->is_array_klass()) { | |
838 return current()->Object_klass(); | |
839 } else { | |
840 ShouldNotReachHere(); | |
841 } | |
842 return NULL; | |
843 } | |
844 | |
845 | |
846 // ------------------------------------------------------------------ | |
847 // ciEnv::get_method_by_index | |
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848 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, |
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849 int index, Bytecodes::Code bc, |
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850 ciInstanceKlass* accessor) { |
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851 if (bc == Bytecodes::_invokedynamic) { |
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852 GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(cpool, index, bc);) |
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853 } else { |
1138
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854 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) |
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855 } |
0 | 856 } |
857 | |
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858 |
0 | 859 // ------------------------------------------------------------------ |
860 // ciEnv::name_buffer | |
861 char *ciEnv::name_buffer(int req_len) { | |
862 if (_name_buffer_len < req_len) { | |
863 if (_name_buffer == NULL) { | |
864 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); | |
865 _name_buffer_len = req_len; | |
866 } else { | |
867 _name_buffer = | |
868 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); | |
869 _name_buffer_len = req_len; | |
870 } | |
871 } | |
872 return _name_buffer; | |
873 } | |
874 | |
875 // ------------------------------------------------------------------ | |
876 // ciEnv::is_in_vm | |
877 bool ciEnv::is_in_vm() { | |
878 return JavaThread::current()->thread_state() == _thread_in_vm; | |
879 } | |
880 | |
881 bool ciEnv::system_dictionary_modification_counter_changed() { | |
882 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); | |
883 } | |
884 | |
885 // ------------------------------------------------------------------ | |
886 // ciEnv::check_for_system_dictionary_modification | |
887 // Check for changes to the system dictionary during compilation | |
888 // class loads, evolution, breakpoints | |
889 void ciEnv::check_for_system_dictionary_modification(ciMethod* target) { | |
890 if (failing()) return; // no need for further checks | |
891 | |
892 // Dependencies must be checked when the system dictionary changes. | |
893 // If logging is enabled all violated dependences will be recorded in | |
894 // the log. In debug mode check dependencies even if the system | |
895 // dictionary hasn't changed to verify that no invalid dependencies | |
896 // were inserted. Any violated dependences in this case are dumped to | |
897 // the tty. | |
898 | |
899 bool counter_changed = system_dictionary_modification_counter_changed(); | |
900 bool test_deps = counter_changed; | |
901 DEBUG_ONLY(test_deps = true); | |
902 if (!test_deps) return; | |
903 | |
904 bool print_failures = false; | |
905 DEBUG_ONLY(print_failures = !counter_changed); | |
906 | |
907 bool keep_going = (print_failures || xtty != NULL); | |
908 | |
909 int violated = 0; | |
910 | |
911 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { | |
912 klassOop witness = deps.check_dependency(); | |
913 if (witness != NULL) { | |
914 ++violated; | |
915 if (print_failures) deps.print_dependency(witness, /*verbose=*/ true); | |
916 // If there's no log and we're not sanity-checking, we're done. | |
917 if (!keep_going) break; | |
918 } | |
919 } | |
920 | |
921 if (violated != 0) { | |
922 assert(counter_changed, "failed dependencies, but counter didn't change"); | |
923 record_failure("concurrent class loading"); | |
924 } | |
925 } | |
926 | |
927 // ------------------------------------------------------------------ | |
928 // ciEnv::register_method | |
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929 nmethod* ciEnv::register_method(ciMethod* target, |
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930 int entry_bci, |
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931 CodeOffsets* offsets, |
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932 int orig_pc_offset, |
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933 CodeBuffer* code_buffer, |
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934 int frame_words, |
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935 OopMapSet* oop_map_set, |
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936 ExceptionHandlerTable* handler_table, |
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937 ImplicitExceptionTable* inc_table, |
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938 AbstractCompiler* compiler, |
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939 int comp_level, |
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940 bool has_debug_info, |
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941 bool has_unsafe_access, |
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942 bool install_code) { |
0 | 943 VM_ENTRY_MARK; |
944 nmethod* nm = NULL; | |
945 { | |
946 // To prevent compile queue updates. | |
947 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
948 | |
949 // Prevent SystemDictionary::add_to_hierarchy from running | |
950 // and invalidating our dependencies until we install this method. | |
951 MutexLocker ml(Compile_lock); | |
952 | |
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953 // Change in Jvmti state may invalidate compilation. |
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954 if (!failing() && |
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955 ( (!jvmti_can_hotswap_or_post_breakpoint() && |
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956 JvmtiExport::can_hotswap_or_post_breakpoint()) || |
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957 (!jvmti_can_access_local_variables() && |
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958 JvmtiExport::can_access_local_variables()) || |
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959 (!jvmti_can_post_on_exceptions() && |
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960 JvmtiExport::can_post_on_exceptions()) )) { |
780
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961 record_failure("Jvmti state change invalidated dependencies"); |
0 | 962 } |
963 | |
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964 // Change in DTrace flags may invalidate compilation. |
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965 if (!failing() && |
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966 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || |
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967 (!dtrace_method_probes() && DTraceMethodProbes) || |
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968 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { |
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969 record_failure("DTrace flags change invalidated dependencies"); |
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970 } |
0 | 971 |
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972 if (!failing()) { |
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973 if (log() != NULL) { |
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974 // Log the dependencies which this compilation declares. |
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975 dependencies()->log_all_dependencies(); |
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976 } |
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977 |
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978 // Encode the dependencies now, so we can check them right away. |
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979 dependencies()->encode_content_bytes(); |
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980 |
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981 // Check for {class loads, evolution, breakpoints} during compilation |
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982 check_for_system_dictionary_modification(target); |
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983 } |
0 | 984 |
985 methodHandle method(THREAD, target->get_methodOop()); | |
986 | |
987 if (failing()) { | |
988 // While not a true deoptimization, it is a preemptive decompile. | |
989 methodDataOop mdo = method()->method_data(); | |
990 if (mdo != NULL) { | |
991 mdo->inc_decompile_count(); | |
992 } | |
993 | |
994 // All buffers in the CodeBuffer are allocated in the CodeCache. | |
995 // If the code buffer is created on each compile attempt | |
996 // as in C2, then it must be freed. | |
997 code_buffer->free_blob(); | |
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998 return NULL; |
0 | 999 } |
1000 | |
1001 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); | |
1002 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); | |
1003 | |
1004 nm = nmethod::new_nmethod(method, | |
1005 compile_id(), | |
1006 entry_bci, | |
1007 offsets, | |
1008 orig_pc_offset, | |
1009 debug_info(), dependencies(), code_buffer, | |
1010 frame_words, oop_map_set, | |
1011 handler_table, inc_table, | |
1012 compiler, comp_level); | |
1013 | |
1014 // Free codeBlobs | |
1015 code_buffer->free_blob(); | |
1016 | |
1017 // stress test 6243940 by immediately making the method | |
1018 // non-entrant behind the system's back. This has serious | |
1019 // side effects on the code cache and is not meant for | |
1020 // general stress testing | |
1021 if (nm != NULL && StressNonEntrant) { | |
1022 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1023 NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(), | |
1024 SharedRuntime::get_handle_wrong_method_stub()); | |
1025 } | |
1026 | |
1027 if (nm == NULL) { | |
1028 // The CodeCache is full. Print out warning and disable compilation. | |
1029 record_failure("code cache is full"); | |
1202 | 1030 { |
1031 MutexUnlocker ml(Compile_lock); | |
1032 MutexUnlocker locker(MethodCompileQueue_lock); | |
1033 CompileBroker::handle_full_code_cache(); | |
0 | 1034 } |
1035 } else { | |
1036 NOT_PRODUCT(nm->set_has_debug_info(has_debug_info); ) | |
1037 nm->set_has_unsafe_access(has_unsafe_access); | |
1038 | |
1039 // Record successful registration. | |
1040 // (Put nm into the task handle *before* publishing to the Java heap.) | |
1041 if (task() != NULL) task()->set_code(nm); | |
1042 | |
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1043 if (install_code) { |
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1044 if (entry_bci == InvocationEntryBci) { |
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1045 if (TieredCompilation) { |
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1046 // If there is an old version we're done with it |
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1047 nmethod* old = method->code(); |
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1048 if (TraceMethodReplacement && old != NULL) { |
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1049 ResourceMark rm; |
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1050 char *method_name = method->name_and_sig_as_C_string(); |
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1051 tty->print_cr("Replacing method %s", method_name); |
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1052 } |
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1053 if (old != NULL ) { |
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1054 old->make_not_entrant(); |
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1055 } |
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1056 } |
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1057 if (TraceNMethodInstalls ) { |
1783 | 1058 ResourceMark rm; |
1059 char *method_name = method->name_and_sig_as_C_string(); | |
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1060 ttyLocker ttyl; |
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1061 tty->print_cr("Installing method (%d) %s ", |
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1062 comp_level, |
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1063 method_name); |
1783 | 1064 } |
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1065 // Allow the code to be executed |
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1066 method->set_code(method, nm); |
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1067 } else { |
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1068 if (TraceNMethodInstalls ) { |
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Lukas Stadler <lukas.stadler@jku.at>
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1069 ResourceMark rm; |
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support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
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1070 char *method_name = method->name_and_sig_as_C_string(); |
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support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1071 ttyLocker ttyl; |
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support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
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1072 tty->print_cr("Installing osr method (%d) %s @ %d", |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1073 comp_level, |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1074 method_name, |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1075 entry_bci); |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1076 } |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1077 instanceKlass::cast(method->method_holder())->add_osr_nmethod(nm); |
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1078 |
0 | 1079 } |
1080 } | |
1081 } | |
1082 } | |
1083 // JVMTI -- compiled method notification (must be done outside lock) | |
1084 if (nm != NULL) { | |
1085 nm->post_compiled_method_load_event(); | |
1086 } | |
1087 | |
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support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
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1088 return nm; |
0 | 1089 } |
1090 | |
1091 | |
1092 // ------------------------------------------------------------------ | |
1093 // ciEnv::find_system_klass | |
1094 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { | |
1095 VM_ENTRY_MARK; | |
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1096 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); |
0 | 1097 } |
1098 | |
1099 // ------------------------------------------------------------------ | |
1100 // ciEnv::comp_level | |
1101 int ciEnv::comp_level() { | |
1783 | 1102 if (task() == NULL) return CompLevel_highest_tier; |
0 | 1103 return task()->comp_level(); |
1104 } | |
1105 | |
1106 // ------------------------------------------------------------------ | |
1107 // ciEnv::compile_id | |
1108 uint ciEnv::compile_id() { | |
1109 if (task() == NULL) return 0; | |
1110 return task()->compile_id(); | |
1111 } | |
1112 | |
1113 // ------------------------------------------------------------------ | |
1114 // ciEnv::notice_inlined_method() | |
1115 void ciEnv::notice_inlined_method(ciMethod* method) { | |
1116 _num_inlined_bytecodes += method->code_size(); | |
1117 } | |
1118 | |
1119 // ------------------------------------------------------------------ | |
1120 // ciEnv::num_inlined_bytecodes() | |
1121 int ciEnv::num_inlined_bytecodes() const { | |
1122 return _num_inlined_bytecodes; | |
1123 } | |
1124 | |
1125 // ------------------------------------------------------------------ | |
1126 // ciEnv::record_failure() | |
1127 void ciEnv::record_failure(const char* reason) { | |
1128 if (log() != NULL) { | |
1129 log()->elem("failure reason='%s'", reason); | |
1130 } | |
1131 if (_failure_reason == NULL) { | |
1132 // Record the first failure reason. | |
1133 _failure_reason = reason; | |
1134 } | |
1135 } | |
1136 | |
1137 // ------------------------------------------------------------------ | |
1138 // ciEnv::record_method_not_compilable() | |
1139 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { | |
1140 int new_compilable = | |
1141 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; | |
1142 | |
1143 // Only note transitions to a worse state | |
1144 if (new_compilable > _compilable) { | |
1145 if (log() != NULL) { | |
1146 if (all_tiers) { | |
1147 log()->elem("method_not_compilable"); | |
1148 } else { | |
1149 log()->elem("method_not_compilable_at_tier"); | |
1150 } | |
1151 } | |
1152 _compilable = new_compilable; | |
1153 | |
1154 // Reset failure reason; this one is more important. | |
1155 _failure_reason = NULL; | |
1156 record_failure(reason); | |
1157 } | |
1158 } | |
1159 | |
1160 // ------------------------------------------------------------------ | |
1161 // ciEnv::record_out_of_memory_failure() | |
1162 void ciEnv::record_out_of_memory_failure() { | |
1163 // If memory is low, we stop compiling methods. | |
1164 record_method_not_compilable("out of memory"); | |
1165 } |