Mercurial > hg > truffle
annotate src/share/vm/ci/ciEnv.cpp @ 12182:bb57d48691f5
Merge
author | tschatzl |
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date | Thu, 05 Sep 2013 14:15:54 +0200 |
parents | f98f5d48f511 |
children | cefad50507d8 5cc2d82aa82a |
rev | line source |
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0 | 1 /* |
8104 | 2 * Copyright (c) 1999, 2013, 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/ciMethod.hpp" | |
32 #include "ci/ciNullObject.hpp" | |
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33 #include "ci/ciReplay.hpp" |
1972 | 34 #include "ci/ciUtilities.hpp" |
35 #include "classfile/systemDictionary.hpp" | |
36 #include "classfile/vmSymbols.hpp" | |
37 #include "code/scopeDesc.hpp" | |
38 #include "compiler/compileBroker.hpp" | |
39 #include "compiler/compileLog.hpp" | |
40 #include "compiler/compilerOracle.hpp" | |
41 #include "gc_interface/collectedHeap.inline.hpp" | |
42 #include "interpreter/linkResolver.hpp" | |
43 #include "memory/allocation.inline.hpp" | |
44 #include "memory/oopFactory.hpp" | |
45 #include "memory/universe.inline.hpp" | |
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46 #include "oops/methodData.hpp" |
1972 | 47 #include "oops/objArrayKlass.hpp" |
48 #include "oops/oop.inline.hpp" | |
49 #include "oops/oop.inline2.hpp" | |
50 #include "prims/jvmtiExport.hpp" | |
51 #include "runtime/init.hpp" | |
52 #include "runtime/reflection.hpp" | |
53 #include "runtime/sharedRuntime.hpp" | |
54 #include "utilities/dtrace.hpp" | |
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55 #include "utilities/macros.hpp" |
1972 | 56 #ifdef COMPILER1 |
57 #include "c1/c1_Runtime1.hpp" | |
58 #endif | |
59 #ifdef COMPILER2 | |
60 #include "opto/runtime.hpp" | |
61 #endif | |
0 | 62 |
63 // ciEnv | |
64 // | |
65 // This class is the top level broker for requests from the compiler | |
66 // to the VM. | |
67 | |
68 ciObject* ciEnv::_null_object_instance; | |
69 | |
1142 | 70 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; |
71 WK_KLASSES_DO(WK_KLASS_DEFN) | |
72 #undef WK_KLASS_DEFN | |
0 | 73 |
74 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; | |
75 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; | |
76 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; | |
77 | |
78 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; | |
79 jobject ciEnv::_ArrayStoreException_handle = NULL; | |
80 jobject ciEnv::_ClassCastException_handle = NULL; | |
81 | |
82 #ifndef PRODUCT | |
83 static bool firstEnv = true; | |
84 #endif /* PRODUCT */ | |
85 | |
86 // ------------------------------------------------------------------ | |
87 // ciEnv::ciEnv | |
88 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) { | |
89 VM_ENTRY_MARK; | |
90 | |
91 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
92 thread->set_env(this); | |
93 assert(ciEnv::current() == this, "sanity"); | |
94 | |
95 _oop_recorder = NULL; | |
96 _debug_info = NULL; | |
97 _dependencies = NULL; | |
98 _failure_reason = NULL; | |
99 _compilable = MethodCompilable; | |
100 _break_at_compile = false; | |
101 _compiler_data = NULL; | |
102 #ifndef PRODUCT | |
103 assert(!firstEnv, "not initialized properly"); | |
104 #endif /* !PRODUCT */ | |
105 | |
106 _system_dictionary_modification_counter = system_dictionary_modification_counter; | |
107 _num_inlined_bytecodes = 0; | |
108 assert(task == NULL || thread->task() == task, "sanity"); | |
109 _task = task; | |
110 _log = NULL; | |
111 | |
112 // Temporary buffer for creating symbols and such. | |
113 _name_buffer = NULL; | |
114 _name_buffer_len = 0; | |
115 | |
116 _arena = &_ciEnv_arena; | |
117 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
118 | |
119 // Preload commonly referenced system ciObjects. | |
120 | |
121 // During VM initialization, these instances have not yet been created. | |
122 // Assertions ensure that these instances are not accessed before | |
123 // their initialization. | |
124 | |
125 assert(Universe::is_fully_initialized(), "should be complete"); | |
126 | |
127 oop o = Universe::null_ptr_exception_instance(); | |
128 assert(o != NULL, "should have been initialized"); | |
129 _NullPointerException_instance = get_object(o)->as_instance(); | |
130 o = Universe::arithmetic_exception_instance(); | |
131 assert(o != NULL, "should have been initialized"); | |
132 _ArithmeticException_instance = get_object(o)->as_instance(); | |
133 | |
134 _ArrayIndexOutOfBoundsException_instance = NULL; | |
135 _ArrayStoreException_instance = NULL; | |
136 _ClassCastException_instance = NULL; | |
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137 _the_null_string = NULL; |
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138 _the_min_jint_string = NULL; |
0 | 139 } |
140 | |
141 ciEnv::ciEnv(Arena* arena) { | |
142 ASSERT_IN_VM; | |
143 | |
144 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
145 CompilerThread* current_thread = CompilerThread::current(); | |
146 assert(current_thread->env() == NULL, "must be"); | |
147 current_thread->set_env(this); | |
148 assert(ciEnv::current() == this, "sanity"); | |
149 | |
150 _oop_recorder = NULL; | |
151 _debug_info = NULL; | |
152 _dependencies = NULL; | |
153 _failure_reason = NULL; | |
154 _compilable = MethodCompilable_never; | |
155 _break_at_compile = false; | |
156 _compiler_data = NULL; | |
157 #ifndef PRODUCT | |
158 assert(firstEnv, "must be first"); | |
159 firstEnv = false; | |
160 #endif /* !PRODUCT */ | |
161 | |
162 _system_dictionary_modification_counter = 0; | |
163 _num_inlined_bytecodes = 0; | |
164 _task = NULL; | |
165 _log = NULL; | |
166 | |
167 // Temporary buffer for creating symbols and such. | |
168 _name_buffer = NULL; | |
169 _name_buffer_len = 0; | |
170 | |
171 _arena = arena; | |
172 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
173 | |
174 // Preload commonly referenced system ciObjects. | |
175 | |
176 // During VM initialization, these instances have not yet been created. | |
177 // Assertions ensure that these instances are not accessed before | |
178 // their initialization. | |
179 | |
180 assert(Universe::is_fully_initialized(), "must be"); | |
181 | |
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182 _NullPointerException_instance = NULL; |
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183 _ArithmeticException_instance = NULL; |
0 | 184 _ArrayIndexOutOfBoundsException_instance = NULL; |
185 _ArrayStoreException_instance = NULL; | |
186 _ClassCastException_instance = NULL; | |
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187 _the_null_string = NULL; |
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188 _the_min_jint_string = NULL; |
0 | 189 } |
190 | |
191 ciEnv::~ciEnv() { | |
192 CompilerThread* current_thread = CompilerThread::current(); | |
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193 _factory->remove_symbols(); |
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194 // Need safepoint to clear the env on the thread. RedefineClasses might |
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195 // be reading it. |
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196 GUARDED_VM_ENTRY(current_thread->set_env(NULL);) |
0 | 197 } |
198 | |
199 // ------------------------------------------------------------------ | |
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200 // Cache Jvmti state |
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201 void ciEnv::cache_jvmti_state() { |
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202 VM_ENTRY_MARK; |
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203 // Get Jvmti capabilities under lock to get consistant values. |
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204 MutexLocker mu(JvmtiThreadState_lock); |
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205 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
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206 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
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207 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
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208 } |
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209 |
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210 // ------------------------------------------------------------------ |
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211 // Cache DTrace flags |
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212 void ciEnv::cache_dtrace_flags() { |
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213 // Need lock? |
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214 _dtrace_extended_probes = ExtendedDTraceProbes; |
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215 if (_dtrace_extended_probes) { |
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216 _dtrace_monitor_probes = true; |
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217 _dtrace_method_probes = true; |
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218 _dtrace_alloc_probes = true; |
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219 } else { |
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220 _dtrace_monitor_probes = DTraceMonitorProbes; |
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221 _dtrace_method_probes = DTraceMethodProbes; |
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222 _dtrace_alloc_probes = DTraceAllocProbes; |
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223 } |
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224 } |
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225 |
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226 // ------------------------------------------------------------------ |
0 | 227 // helper for lazy exception creation |
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228 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { |
0 | 229 VM_ENTRY_MARK; |
230 if (handle == NULL) { | |
231 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. | |
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232 Klass* k = SystemDictionary::find(name, Handle(), Handle(), THREAD); |
0 | 233 jobject objh = NULL; |
234 if (!HAS_PENDING_EXCEPTION && k != NULL) { | |
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235 oop obj = InstanceKlass::cast(k)->allocate_instance(THREAD); |
0 | 236 if (!HAS_PENDING_EXCEPTION) |
237 objh = JNIHandles::make_global(obj); | |
238 } | |
239 if (HAS_PENDING_EXCEPTION) { | |
240 CLEAR_PENDING_EXCEPTION; | |
241 } else { | |
242 handle = objh; | |
243 } | |
244 } | |
245 oop obj = JNIHandles::resolve(handle); | |
246 return obj == NULL? NULL: get_object(obj)->as_instance(); | |
247 } | |
248 | |
249 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { | |
250 if (_ArrayIndexOutOfBoundsException_instance == NULL) { | |
251 _ArrayIndexOutOfBoundsException_instance | |
252 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, | |
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253 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); |
0 | 254 } |
255 return _ArrayIndexOutOfBoundsException_instance; | |
256 } | |
257 ciInstance* ciEnv::ArrayStoreException_instance() { | |
258 if (_ArrayStoreException_instance == NULL) { | |
259 _ArrayStoreException_instance | |
260 = get_or_create_exception(_ArrayStoreException_handle, | |
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261 vmSymbols::java_lang_ArrayStoreException()); |
0 | 262 } |
263 return _ArrayStoreException_instance; | |
264 } | |
265 ciInstance* ciEnv::ClassCastException_instance() { | |
266 if (_ClassCastException_instance == NULL) { | |
267 _ClassCastException_instance | |
268 = get_or_create_exception(_ClassCastException_handle, | |
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269 vmSymbols::java_lang_ClassCastException()); |
0 | 270 } |
271 return _ClassCastException_instance; | |
272 } | |
273 | |
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274 ciInstance* ciEnv::the_null_string() { |
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275 if (_the_null_string == NULL) { |
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276 VM_ENTRY_MARK; |
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277 _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
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278 } |
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279 return _the_null_string; |
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280 } |
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281 |
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282 ciInstance* ciEnv::the_min_jint_string() { |
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283 if (_the_min_jint_string == NULL) { |
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284 VM_ENTRY_MARK; |
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285 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); |
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286 } |
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287 return _the_min_jint_string; |
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288 } |
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289 |
0 | 290 // ------------------------------------------------------------------ |
291 // ciEnv::get_method_from_handle | |
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292 ciMethod* ciEnv::get_method_from_handle(Method* method) { |
0 | 293 VM_ENTRY_MARK; |
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294 return get_metadata(method)->as_method(); |
0 | 295 } |
296 | |
297 // ------------------------------------------------------------------ | |
298 // ciEnv::array_element_offset_in_bytes | |
299 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { | |
300 VM_ENTRY_MARK; | |
301 objArrayOop a = (objArrayOop)a_h->get_oop(); | |
302 assert(a->is_objArray(), ""); | |
303 int length = a->length(); | |
304 oop o = o_h->get_oop(); | |
305 for (int i = 0; i < length; i++) { | |
306 if (a->obj_at(i) == o) return i; | |
307 } | |
308 return -1; | |
309 } | |
310 | |
311 | |
312 // ------------------------------------------------------------------ | |
313 // ciEnv::check_klass_accessiblity | |
314 // | |
315 // Note: the logic of this method should mirror the logic of | |
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316 // ConstantPool::verify_constant_pool_resolve. |
0 | 317 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, |
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318 Klass* resolved_klass) { |
0 | 319 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { |
320 return true; | |
321 } | |
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322 if (accessing_klass->is_obj_array_klass()) { |
0 | 323 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); |
324 } | |
325 if (!accessing_klass->is_instance_klass()) { | |
326 return true; | |
327 } | |
328 | |
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329 if (resolved_klass->oop_is_objArray()) { |
0 | 330 // Find the element klass, if this is an array. |
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331 resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); |
0 | 332 } |
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333 if (resolved_klass->oop_is_instance()) { |
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334 return Reflection::verify_class_access(accessing_klass->get_Klass(), |
0 | 335 resolved_klass, |
336 true); | |
337 } | |
338 return true; | |
339 } | |
340 | |
341 // ------------------------------------------------------------------ | |
342 // ciEnv::get_klass_by_name_impl | |
343 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, | |
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344 constantPoolHandle cpool, |
0 | 345 ciSymbol* name, |
346 bool require_local) { | |
347 ASSERT_IN_VM; | |
348 EXCEPTION_CONTEXT; | |
349 | |
350 // Now we need to check the SystemDictionary | |
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351 Symbol* sym = name->get_symbol(); |
0 | 352 if (sym->byte_at(0) == 'L' && |
353 sym->byte_at(sym->utf8_length()-1) == ';') { | |
354 // This is a name from a signature. Strip off the trimmings. | |
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355 // Call recursive to keep scope of strippedsym. |
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356 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, |
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357 sym->utf8_length()-2, |
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358 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); |
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359 ciSymbol* strippedname = get_symbol(strippedsym); |
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360 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); |
0 | 361 } |
362 | |
363 // Check for prior unloaded klass. The SystemDictionary's answers | |
364 // can vary over time but the compiler needs consistency. | |
365 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); | |
366 if (unloaded_klass != NULL) { | |
367 if (require_local) return NULL; | |
368 return unloaded_klass; | |
369 } | |
370 | |
371 Handle loader(THREAD, (oop)NULL); | |
372 Handle domain(THREAD, (oop)NULL); | |
373 if (accessing_klass != NULL) { | |
374 loader = Handle(THREAD, accessing_klass->loader()); | |
375 domain = Handle(THREAD, accessing_klass->protection_domain()); | |
376 } | |
377 | |
378 // setup up the proper type to return on OOM | |
379 ciKlass* fail_type; | |
380 if (sym->byte_at(0) == '[') { | |
381 fail_type = _unloaded_ciobjarrayklass; | |
382 } else { | |
383 fail_type = _unloaded_ciinstance_klass; | |
384 } | |
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385 KlassHandle found_klass; |
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386 { |
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387 ttyUnlocker ttyul; // release tty lock to avoid ordering problems |
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388 MutexLocker ml(Compile_lock); |
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389 Klass* kls; |
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390 if (!require_local) { |
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391 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, |
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392 KILL_COMPILE_ON_FATAL_(fail_type)); |
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393 } else { |
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394 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, |
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395 KILL_COMPILE_ON_FATAL_(fail_type)); |
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396 } |
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397 found_klass = KlassHandle(THREAD, kls); |
0 | 398 } |
399 | |
400 // If we fail to find an array klass, look again for its element type. | |
401 // The element type may be available either locally or via constraints. | |
402 // In either case, if we can find the element type in the system dictionary, | |
403 // we must build an array type around it. The CI requires array klasses | |
404 // to be loaded if their element klasses are loaded, except when memory | |
405 // is exhausted. | |
406 if (sym->byte_at(0) == '[' && | |
407 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { | |
408 // We have an unloaded array. | |
409 // Build it on the fly if the element class exists. | |
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410 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, |
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411 sym->utf8_length()-1, |
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412 KILL_COMPILE_ON_FATAL_(fail_type)); |
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413 |
0 | 414 // Get element ciKlass recursively. |
415 ciKlass* elem_klass = | |
416 get_klass_by_name_impl(accessing_klass, | |
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417 cpool, |
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418 get_symbol(elem_sym), |
0 | 419 require_local); |
420 if (elem_klass != NULL && elem_klass->is_loaded()) { | |
421 // Now make an array for it | |
422 return ciObjArrayKlass::make_impl(elem_klass); | |
423 } | |
424 } | |
425 | |
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426 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { |
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427 // Look inside the constant pool for pre-resolved class entries. |
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428 for (int i = cpool->length() - 1; i >= 1; i--) { |
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429 if (cpool->tag_at(i).is_klass()) { |
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430 Klass* kls = cpool->resolved_klass_at(i); |
6983 | 431 if (kls->name() == sym) { |
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432 found_klass = KlassHandle(THREAD, kls); |
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433 break; |
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434 } |
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435 } |
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436 } |
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437 } |
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438 |
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439 if (found_klass() != NULL) { |
0 | 440 // Found it. Build a CI handle. |
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441 return get_klass(found_klass()); |
0 | 442 } |
443 | |
444 if (require_local) return NULL; | |
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445 |
0 | 446 // Not yet loaded into the VM, or not governed by loader constraints. |
447 // Make a CI representative for it. | |
448 return get_unloaded_klass(accessing_klass, name); | |
449 } | |
450 | |
451 // ------------------------------------------------------------------ | |
452 // ciEnv::get_klass_by_name | |
453 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, | |
454 ciSymbol* klass_name, | |
455 bool require_local) { | |
456 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, | |
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457 constantPoolHandle(), |
0 | 458 klass_name, |
459 require_local);) | |
460 } | |
461 | |
462 // ------------------------------------------------------------------ | |
463 // ciEnv::get_klass_by_index_impl | |
464 // | |
465 // Implementation of get_klass_by_index. | |
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466 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 467 int index, |
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468 bool& is_accessible, |
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469 ciInstanceKlass* accessor) { |
0 | 470 EXCEPTION_CONTEXT; |
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471 KlassHandle klass; // = NULL; |
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472 Symbol* klass_name = NULL; |
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473 |
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474 if (cpool->tag_at(index).is_symbol()) { |
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475 klass_name = cpool->symbol_at(index); |
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476 } else { |
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477 // Check if it's resolved if it's not a symbol constant pool entry. |
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478 klass = KlassHandle(THREAD, ConstantPool::klass_at_if_loaded(cpool, index)); |
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479 |
0 | 480 if (klass.is_null()) { |
481 // The klass has not been inserted into the constant pool. | |
482 // Try to look it up by name. | |
483 { | |
484 // We have to lock the cpool to keep the oop from being resolved | |
485 // while we are accessing it. | |
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486 oop cplock = cpool->lock(); |
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487 ObjectLocker ol(cplock, THREAD, cplock != NULL); |
0 | 488 constantTag tag = cpool->tag_at(index); |
489 if (tag.is_klass()) { | |
490 // The klass has been inserted into the constant pool | |
491 // very recently. | |
492 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); | |
493 } else { | |
494 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag"); | |
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495 klass_name = cpool->unresolved_klass_at(index); |
0 | 496 } |
497 } | |
498 } | |
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499 } |
0 | 500 |
501 if (klass.is_null()) { | |
502 // Not found in constant pool. Use the name to do the lookup. | |
503 ciKlass* k = get_klass_by_name_impl(accessor, | |
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504 cpool, |
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505 get_symbol(klass_name), |
0 | 506 false); |
507 // Calculate accessibility the hard way. | |
508 if (!k->is_loaded()) { | |
509 is_accessible = false; | |
510 } else if (k->loader() != accessor->loader() && | |
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511 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { |
0 | 512 // Loaded only remotely. Not linked yet. |
513 is_accessible = false; | |
514 } else { | |
515 // Linked locally, and we must also check public/private, etc. | |
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516 is_accessible = check_klass_accessibility(accessor, k->get_Klass()); |
0 | 517 } |
518 return k; | |
519 } | |
520 | |
521 // Check for prior unloaded klass. The SystemDictionary's answers | |
522 // can vary over time but the compiler needs consistency. | |
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523 ciSymbol* name = get_symbol(klass()->name()); |
0 | 524 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); |
525 if (unloaded_klass != NULL) { | |
526 is_accessible = false; | |
527 return unloaded_klass; | |
528 } | |
529 | |
530 // It is known to be accessible, since it was found in the constant pool. | |
531 is_accessible = true; | |
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532 return get_klass(klass()); |
0 | 533 } |
534 | |
535 // ------------------------------------------------------------------ | |
536 // ciEnv::get_klass_by_index | |
537 // | |
538 // Get a klass from the constant pool. | |
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539 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, |
0 | 540 int index, |
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541 bool& is_accessible, |
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542 ciInstanceKlass* accessor) { |
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543 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) |
0 | 544 } |
545 | |
546 // ------------------------------------------------------------------ | |
547 // ciEnv::get_constant_by_index_impl | |
548 // | |
549 // Implementation of get_constant_by_index(). | |
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550 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, |
1602 | 551 int pool_index, int cache_index, |
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552 ciInstanceKlass* accessor) { |
1602 | 553 bool ignore_will_link; |
0 | 554 EXCEPTION_CONTEXT; |
1602 | 555 int index = pool_index; |
556 if (cache_index >= 0) { | |
557 assert(index < 0, "only one kind of index at a time"); | |
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558 oop obj = cpool->resolved_references()->obj_at(cache_index); |
1602 | 559 if (obj != NULL) { |
560 ciObject* ciobj = get_object(obj); | |
561 return ciConstant(T_OBJECT, ciobj); | |
562 } | |
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563 index = cpool->object_to_cp_index(cache_index); |
1602 | 564 } |
0 | 565 constantTag tag = cpool->tag_at(index); |
566 if (tag.is_int()) { | |
567 return ciConstant(T_INT, (jint)cpool->int_at(index)); | |
568 } else if (tag.is_long()) { | |
569 return ciConstant((jlong)cpool->long_at(index)); | |
570 } else if (tag.is_float()) { | |
571 return ciConstant((jfloat)cpool->float_at(index)); | |
572 } else if (tag.is_double()) { | |
573 return ciConstant((jdouble)cpool->double_at(index)); | |
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574 } else if (tag.is_string()) { |
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575 oop string = NULL; |
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576 assert(cache_index >= 0, "should have a cache index"); |
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577 if (cpool->is_pseudo_string_at(index)) { |
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578 string = cpool->pseudo_string_at(index, cache_index); |
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579 } else { |
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580 string = cpool->string_at(index, cache_index, THREAD); |
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581 if (HAS_PENDING_EXCEPTION) { |
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582 CLEAR_PENDING_EXCEPTION; |
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583 record_out_of_memory_failure(); |
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584 return ciConstant(); |
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585 } |
0 | 586 } |
587 ciObject* constant = get_object(string); | |
588 assert (constant->is_instance(), "must be an instance, or not? "); | |
589 return ciConstant(T_OBJECT, constant); | |
590 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
591 // 4881222: allow ldc to take a class type | |
1602 | 592 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); |
0 | 593 if (HAS_PENDING_EXCEPTION) { |
594 CLEAR_PENDING_EXCEPTION; | |
595 record_out_of_memory_failure(); | |
596 return ciConstant(); | |
597 } | |
598 assert (klass->is_instance_klass() || klass->is_array_klass(), | |
599 "must be an instance or array klass "); | |
1602 | 600 return ciConstant(T_OBJECT, klass->java_mirror()); |
601 } else if (tag.is_method_type()) { | |
602 // must execute Java code to link this CP entry into cache[i].f1 | |
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603 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); |
1602 | 604 ciObject* ciobj = get_unloaded_method_type_constant(signature); |
605 return ciConstant(T_OBJECT, ciobj); | |
606 } else if (tag.is_method_handle()) { | |
607 // must execute Java code to link this CP entry into cache[i].f1 | |
608 int ref_kind = cpool->method_handle_ref_kind_at(index); | |
609 int callee_index = cpool->method_handle_klass_index_at(index); | |
610 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); | |
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611 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); |
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612 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); |
1602 | 613 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); |
614 return ciConstant(T_OBJECT, ciobj); | |
0 | 615 } else { |
616 ShouldNotReachHere(); | |
617 return ciConstant(); | |
618 } | |
619 } | |
620 | |
621 // ------------------------------------------------------------------ | |
622 // ciEnv::get_constant_by_index | |
623 // | |
624 // Pull a constant out of the constant pool. How appropriate. | |
625 // | |
626 // Implementation note: this query is currently in no way cached. | |
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627 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, |
1602 | 628 int pool_index, int cache_index, |
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629 ciInstanceKlass* accessor) { |
1602 | 630 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) |
0 | 631 } |
632 | |
633 // ------------------------------------------------------------------ | |
634 // ciEnv::get_field_by_index_impl | |
635 // | |
636 // Implementation of get_field_by_index. | |
637 // | |
638 // Implementation note: the results of field lookups are cached | |
639 // in the accessor klass. | |
640 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, | |
641 int index) { | |
642 ciConstantPoolCache* cache = accessor->field_cache(); | |
643 if (cache == NULL) { | |
644 ciField* field = new (arena()) ciField(accessor, index); | |
645 return field; | |
646 } else { | |
647 ciField* field = (ciField*)cache->get(index); | |
648 if (field == NULL) { | |
649 field = new (arena()) ciField(accessor, index); | |
650 cache->insert(index, field); | |
651 } | |
652 return field; | |
653 } | |
654 } | |
655 | |
656 // ------------------------------------------------------------------ | |
657 // ciEnv::get_field_by_index | |
658 // | |
659 // Get a field by index from a klass's constant pool. | |
660 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, | |
661 int index) { | |
662 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) | |
663 } | |
664 | |
665 // ------------------------------------------------------------------ | |
666 // ciEnv::lookup_method | |
667 // | |
668 // Perform an appropriate method lookup based on accessor, holder, | |
669 // name, signature, and bytecode. | |
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670 Method* ciEnv::lookup_method(InstanceKlass* accessor, |
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671 InstanceKlass* holder, |
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672 Symbol* name, |
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673 Symbol* sig, |
0 | 674 Bytecodes::Code bc) { |
675 EXCEPTION_CONTEXT; | |
676 KlassHandle h_accessor(THREAD, accessor); | |
677 KlassHandle h_holder(THREAD, holder); | |
678 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); | |
679 methodHandle dest_method; | |
680 switch (bc) { | |
681 case Bytecodes::_invokestatic: | |
682 dest_method = | |
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683 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); |
0 | 684 break; |
685 case Bytecodes::_invokespecial: | |
686 dest_method = | |
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687 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); |
0 | 688 break; |
689 case Bytecodes::_invokeinterface: | |
690 dest_method = | |
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691 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, |
0 | 692 h_accessor, true); |
693 break; | |
694 case Bytecodes::_invokevirtual: | |
695 dest_method = | |
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696 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, |
0 | 697 h_accessor, true); |
698 break; | |
699 default: ShouldNotReachHere(); | |
700 } | |
701 | |
702 return dest_method(); | |
703 } | |
704 | |
705 | |
706 // ------------------------------------------------------------------ | |
707 // ciEnv::get_method_by_index_impl | |
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708 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, |
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709 int index, Bytecodes::Code bc, |
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710 ciInstanceKlass* accessor) { |
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711 if (bc == Bytecodes::_invokedynamic) { |
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712 ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); |
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713 bool is_resolved = !cpce->is_f1_null(); |
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714 // FIXME: code generation could allow for null (unlinked) call site |
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715 // The call site could be made patchable as follows: |
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716 // Load the appendix argument from the constant pool. |
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717 // Test the appendix argument and jump to a known deopt routine if it is null. |
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718 // Jump through a patchable call site, which is initially a deopt routine. |
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719 // Patch the call site to the nmethod entry point of the static compiled lambda form. |
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720 // As with other two-component call sites, both values must be independently verified. |
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721 |
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722 if (is_resolved) { |
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723 // Get the invoker Method* from the constant pool. |
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724 // (The appendix argument, if any, will be noted in the method's signature.) |
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725 Method* adapter = cpce->f1_as_method(); |
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726 return get_method(adapter); |
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727 } |
0 | 728 |
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729 // Fake a method that is equivalent to a declared method. |
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730 ciInstanceKlass* holder = get_instance_klass(SystemDictionary::MethodHandle_klass()); |
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731 ciSymbol* name = ciSymbol::invokeBasic_name(); |
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732 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); |
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733 return get_unloaded_method(holder, name, signature, accessor); |
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734 } else { |
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735 const int holder_index = cpool->klass_ref_index_at(index); |
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736 bool holder_is_accessible; |
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737 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
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738 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); |
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739 |
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740 // Get the method's name and signature. |
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741 Symbol* name_sym = cpool->name_ref_at(index); |
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742 Symbol* sig_sym = cpool->signature_ref_at(index); |
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743 |
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744 if (cpool->has_preresolution() |
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745 || (holder == ciEnv::MethodHandle_klass() && |
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746 MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { |
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747 // Short-circuit lookups for JSR 292-related call sites. |
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748 // That is, do not rely only on name-based lookups, because they may fail |
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749 // if the names are not resolvable in the boot class loader (7056328). |
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750 switch (bc) { |
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751 case Bytecodes::_invokevirtual: |
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752 case Bytecodes::_invokeinterface: |
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753 case Bytecodes::_invokespecial: |
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754 case Bytecodes::_invokestatic: |
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755 { |
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756 Method* m = ConstantPool::method_at_if_loaded(cpool, index); |
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757 if (m != NULL) { |
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758 return get_method(m); |
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759 } |
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760 } |
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761 break; |
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762 } |
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763 } |
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764 |
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765 if (holder_is_accessible) { // Our declared holder is loaded. |
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766 InstanceKlass* lookup = declared_holder->get_instanceKlass(); |
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767 Method* m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); |
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768 if (m != NULL && |
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769 (bc == Bytecodes::_invokestatic |
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770 ? m->method_holder()->is_not_initialized() |
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771 : !m->method_holder()->is_loaded())) { |
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772 m = NULL; |
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773 } |
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774 #ifdef ASSERT |
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775 if (m != NULL && ReplayCompiles && !ciReplay::is_loaded(m)) { |
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776 m = NULL; |
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777 } |
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778 #endif |
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779 if (m != NULL) { |
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780 // We found the method. |
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781 return get_method(m); |
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782 } |
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783 } |
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784 |
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785 // Either the declared holder was not loaded, or the method could |
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786 // not be found. Create a dummy ciMethod to represent the failed |
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787 // lookup. |
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788 ciSymbol* name = get_symbol(name_sym); |
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789 ciSymbol* signature = get_symbol(sig_sym); |
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790 return get_unloaded_method(declared_holder, name, signature, accessor); |
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791 } |
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792 } |
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793 |
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794 |
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795 // ------------------------------------------------------------------ |
0 | 796 // ciEnv::get_instance_klass_for_declared_method_holder |
797 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { | |
798 // For the case of <array>.clone(), the method holder can be a ciArrayKlass | |
799 // instead of a ciInstanceKlass. For that case simply pretend that the | |
800 // declared holder is Object.clone since that's where the call will bottom out. | |
801 // A more correct fix would trickle out through many interfaces in CI, | |
802 // requiring ciInstanceKlass* to become ciKlass* and many more places would | |
803 // require checks to make sure the expected type was found. Given that this | |
804 // only occurs for clone() the more extensive fix seems like overkill so | |
805 // instead we simply smear the array type into Object. | |
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806 guarantee(method_holder != NULL, "no method holder"); |
0 | 807 if (method_holder->is_instance_klass()) { |
808 return method_holder->as_instance_klass(); | |
809 } else if (method_holder->is_array_klass()) { | |
810 return current()->Object_klass(); | |
811 } else { | |
812 ShouldNotReachHere(); | |
813 } | |
814 return NULL; | |
815 } | |
816 | |
817 | |
818 // ------------------------------------------------------------------ | |
819 // ciEnv::get_method_by_index | |
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820 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, |
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821 int index, Bytecodes::Code bc, |
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822 ciInstanceKlass* accessor) { |
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823 GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);) |
0 | 824 } |
825 | |
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826 |
0 | 827 // ------------------------------------------------------------------ |
828 // ciEnv::name_buffer | |
829 char *ciEnv::name_buffer(int req_len) { | |
830 if (_name_buffer_len < req_len) { | |
831 if (_name_buffer == NULL) { | |
832 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); | |
833 _name_buffer_len = req_len; | |
834 } else { | |
835 _name_buffer = | |
836 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); | |
837 _name_buffer_len = req_len; | |
838 } | |
839 } | |
840 return _name_buffer; | |
841 } | |
842 | |
843 // ------------------------------------------------------------------ | |
844 // ciEnv::is_in_vm | |
845 bool ciEnv::is_in_vm() { | |
846 return JavaThread::current()->thread_state() == _thread_in_vm; | |
847 } | |
848 | |
849 bool ciEnv::system_dictionary_modification_counter_changed() { | |
850 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); | |
851 } | |
852 | |
853 // ------------------------------------------------------------------ | |
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854 // ciEnv::validate_compile_task_dependencies |
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855 // |
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856 // Check for changes during compilation (e.g. class loads, evolution, |
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857 // breakpoints, call site invalidation). |
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858 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { |
0 | 859 if (failing()) return; // no need for further checks |
860 | |
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861 // First, check non-klass dependencies as we might return early and |
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862 // not check klass dependencies if the system dictionary |
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863 // modification counter hasn't changed (see below). |
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864 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
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865 if (deps.is_klass_type()) continue; // skip klass dependencies |
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866 Klass* witness = deps.check_dependency(); |
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867 if (witness != NULL) { |
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868 record_failure("invalid non-klass dependency"); |
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869 return; |
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870 } |
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871 } |
0 | 872 |
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873 // Klass dependencies must be checked when the system dictionary |
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874 // changes. If logging is enabled all violated dependences will be |
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875 // recorded in the log. In debug mode check dependencies even if |
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876 // the system dictionary hasn't changed to verify that no invalid |
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877 // dependencies were inserted. Any violated dependences in this |
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878 // case are dumped to the tty. |
0 | 879 bool counter_changed = system_dictionary_modification_counter_changed(); |
880 | |
3959 | 881 bool verify_deps = trueInDebug; |
882 if (!counter_changed && !verify_deps) return; | |
883 | |
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884 int klass_violations = 0; |
0 | 885 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
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886 if (!deps.is_klass_type()) continue; // skip non-klass dependencies |
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887 Klass* witness = deps.check_dependency(); |
0 | 888 if (witness != NULL) { |
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889 klass_violations++; |
3959 | 890 if (!counter_changed) { |
891 // Dependence failed but counter didn't change. Log a message | |
892 // describing what failed and allow the assert at the end to | |
893 // trigger. | |
894 deps.print_dependency(witness); | |
895 } else if (xtty == NULL) { | |
896 // If we're not logging then a single violation is sufficient, | |
897 // otherwise we want to log all the dependences which were | |
898 // violated. | |
899 break; | |
900 } | |
0 | 901 } |
902 } | |
903 | |
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904 if (klass_violations != 0) { |
3959 | 905 #ifdef ASSERT |
906 if (!counter_changed && !PrintCompilation) { | |
907 // Print out the compile task that failed | |
908 _task->print_line(); | |
909 } | |
910 #endif | |
0 | 911 assert(counter_changed, "failed dependencies, but counter didn't change"); |
912 record_failure("concurrent class loading"); | |
913 } | |
914 } | |
915 | |
916 // ------------------------------------------------------------------ | |
917 // ciEnv::register_method | |
918 void ciEnv::register_method(ciMethod* target, | |
919 int entry_bci, | |
920 CodeOffsets* offsets, | |
921 int orig_pc_offset, | |
922 CodeBuffer* code_buffer, | |
923 int frame_words, | |
924 OopMapSet* oop_map_set, | |
925 ExceptionHandlerTable* handler_table, | |
926 ImplicitExceptionTable* inc_table, | |
927 AbstractCompiler* compiler, | |
928 int comp_level, | |
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929 bool has_unsafe_access, |
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930 bool has_wide_vectors) { |
0 | 931 VM_ENTRY_MARK; |
932 nmethod* nm = NULL; | |
933 { | |
934 // To prevent compile queue updates. | |
935 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
936 | |
937 // Prevent SystemDictionary::add_to_hierarchy from running | |
938 // and invalidating our dependencies until we install this method. | |
939 MutexLocker ml(Compile_lock); | |
940 | |
780
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941 // Change in Jvmti state may invalidate compilation. |
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942 if (!failing() && |
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943 ( (!jvmti_can_hotswap_or_post_breakpoint() && |
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944 JvmtiExport::can_hotswap_or_post_breakpoint()) || |
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945 (!jvmti_can_access_local_variables() && |
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946 JvmtiExport::can_access_local_variables()) || |
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947 (!jvmti_can_post_on_exceptions() && |
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948 JvmtiExport::can_post_on_exceptions()) )) { |
780
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949 record_failure("Jvmti state change invalidated dependencies"); |
0 | 950 } |
951 | |
780
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952 // Change in DTrace flags may invalidate compilation. |
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953 if (!failing() && |
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954 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || |
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955 (!dtrace_method_probes() && DTraceMethodProbes) || |
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956 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { |
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957 record_failure("DTrace flags change invalidated dependencies"); |
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958 } |
0 | 959 |
780
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960 if (!failing()) { |
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961 if (log() != NULL) { |
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962 // Log the dependencies which this compilation declares. |
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963 dependencies()->log_all_dependencies(); |
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964 } |
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965 |
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966 // Encode the dependencies now, so we can check them right away. |
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967 dependencies()->encode_content_bytes(); |
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968 |
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969 // Check for {class loads, evolution, breakpoints, ...} during compilation |
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970 validate_compile_task_dependencies(target); |
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971 } |
0 | 972 |
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973 methodHandle method(THREAD, target->get_Method()); |
0 | 974 |
975 if (failing()) { | |
976 // While not a true deoptimization, it is a preemptive decompile. | |
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977 MethodData* mdo = method()->method_data(); |
0 | 978 if (mdo != NULL) { |
979 mdo->inc_decompile_count(); | |
980 } | |
981 | |
982 // All buffers in the CodeBuffer are allocated in the CodeCache. | |
983 // If the code buffer is created on each compile attempt | |
984 // as in C2, then it must be freed. | |
985 code_buffer->free_blob(); | |
986 return; | |
987 } | |
988 | |
989 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); | |
990 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); | |
991 | |
992 nm = nmethod::new_nmethod(method, | |
993 compile_id(), | |
994 entry_bci, | |
995 offsets, | |
996 orig_pc_offset, | |
997 debug_info(), dependencies(), code_buffer, | |
998 frame_words, oop_map_set, | |
999 handler_table, inc_table, | |
1000 compiler, comp_level); | |
1001 | |
1002 // Free codeBlobs | |
1003 code_buffer->free_blob(); | |
1004 | |
1005 // stress test 6243940 by immediately making the method | |
1006 // non-entrant behind the system's back. This has serious | |
1007 // side effects on the code cache and is not meant for | |
1008 // general stress testing | |
1009 if (nm != NULL && StressNonEntrant) { | |
1010 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1011 NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(), | |
1012 SharedRuntime::get_handle_wrong_method_stub()); | |
1013 } | |
1014 | |
1015 if (nm == NULL) { | |
1016 // The CodeCache is full. Print out warning and disable compilation. | |
1017 record_failure("code cache is full"); | |
1202 | 1018 { |
1019 MutexUnlocker ml(Compile_lock); | |
1020 MutexUnlocker locker(MethodCompileQueue_lock); | |
1021 CompileBroker::handle_full_code_cache(); | |
0 | 1022 } |
1023 } else { | |
1024 nm->set_has_unsafe_access(has_unsafe_access); | |
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1025 nm->set_has_wide_vectors(has_wide_vectors); |
0 | 1026 |
1027 // Record successful registration. | |
1028 // (Put nm into the task handle *before* publishing to the Java heap.) | |
1029 if (task() != NULL) task()->set_code(nm); | |
1030 | |
1031 if (entry_bci == InvocationEntryBci) { | |
1783 | 1032 if (TieredCompilation) { |
1033 // If there is an old version we're done with it | |
1034 nmethod* old = method->code(); | |
1035 if (TraceMethodReplacement && old != NULL) { | |
1036 ResourceMark rm; | |
1037 char *method_name = method->name_and_sig_as_C_string(); | |
1038 tty->print_cr("Replacing method %s", method_name); | |
1039 } | |
1040 if (old != NULL ) { | |
1041 old->make_not_entrant(); | |
1042 } | |
0 | 1043 } |
1044 if (TraceNMethodInstalls ) { | |
1045 ResourceMark rm; | |
1046 char *method_name = method->name_and_sig_as_C_string(); | |
1047 ttyLocker ttyl; | |
1048 tty->print_cr("Installing method (%d) %s ", | |
1049 comp_level, | |
1050 method_name); | |
1051 } | |
1052 // Allow the code to be executed | |
1053 method->set_code(method, nm); | |
1054 } else { | |
1055 if (TraceNMethodInstalls ) { | |
1056 ResourceMark rm; | |
1057 char *method_name = method->name_and_sig_as_C_string(); | |
1058 ttyLocker ttyl; | |
1059 tty->print_cr("Installing osr method (%d) %s @ %d", | |
1060 comp_level, | |
1061 method_name, | |
1062 entry_bci); | |
1063 } | |
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1064 method->method_holder()->add_osr_nmethod(nm); |
0 | 1065 |
1066 } | |
1067 } | |
1068 } | |
1069 // JVMTI -- compiled method notification (must be done outside lock) | |
1070 if (nm != NULL) { | |
1071 nm->post_compiled_method_load_event(); | |
1072 } | |
1073 | |
1074 } | |
1075 | |
1076 | |
1077 // ------------------------------------------------------------------ | |
1078 // ciEnv::find_system_klass | |
1079 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { | |
1080 VM_ENTRY_MARK; | |
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1081 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); |
0 | 1082 } |
1083 | |
1084 // ------------------------------------------------------------------ | |
1085 // ciEnv::comp_level | |
1086 int ciEnv::comp_level() { | |
1783 | 1087 if (task() == NULL) return CompLevel_highest_tier; |
0 | 1088 return task()->comp_level(); |
1089 } | |
1090 | |
1091 // ------------------------------------------------------------------ | |
1092 // ciEnv::compile_id | |
1093 uint ciEnv::compile_id() { | |
1094 if (task() == NULL) return 0; | |
1095 return task()->compile_id(); | |
1096 } | |
1097 | |
1098 // ------------------------------------------------------------------ | |
1099 // ciEnv::notice_inlined_method() | |
1100 void ciEnv::notice_inlined_method(ciMethod* method) { | |
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1101 _num_inlined_bytecodes += method->code_size_for_inlining(); |
0 | 1102 } |
1103 | |
1104 // ------------------------------------------------------------------ | |
1105 // ciEnv::num_inlined_bytecodes() | |
1106 int ciEnv::num_inlined_bytecodes() const { | |
1107 return _num_inlined_bytecodes; | |
1108 } | |
1109 | |
1110 // ------------------------------------------------------------------ | |
1111 // ciEnv::record_failure() | |
1112 void ciEnv::record_failure(const char* reason) { | |
1113 if (log() != NULL) { | |
1114 log()->elem("failure reason='%s'", reason); | |
1115 } | |
1116 if (_failure_reason == NULL) { | |
1117 // Record the first failure reason. | |
1118 _failure_reason = reason; | |
1119 } | |
1120 } | |
1121 | |
1122 // ------------------------------------------------------------------ | |
1123 // ciEnv::record_method_not_compilable() | |
1124 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { | |
1125 int new_compilable = | |
1126 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; | |
1127 | |
1128 // Only note transitions to a worse state | |
1129 if (new_compilable > _compilable) { | |
1130 if (log() != NULL) { | |
1131 if (all_tiers) { | |
1132 log()->elem("method_not_compilable"); | |
1133 } else { | |
6843 | 1134 log()->elem("method_not_compilable_at_tier level='%d'", |
1135 current()->task()->comp_level()); | |
0 | 1136 } |
1137 } | |
1138 _compilable = new_compilable; | |
1139 | |
1140 // Reset failure reason; this one is more important. | |
1141 _failure_reason = NULL; | |
1142 record_failure(reason); | |
1143 } | |
1144 } | |
1145 | |
1146 // ------------------------------------------------------------------ | |
1147 // ciEnv::record_out_of_memory_failure() | |
1148 void ciEnv::record_out_of_memory_failure() { | |
1149 // If memory is low, we stop compiling methods. | |
1150 record_method_not_compilable("out of memory"); | |
1151 } | |
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1152 |
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1153 ciInstance* ciEnv::unloaded_ciinstance() { |
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1154 GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();) |
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1155 } |
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1156 |
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1157 void ciEnv::dump_replay_data(outputStream* out) { |
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1158 VM_ENTRY_MARK; |
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1159 MutexLocker ml(Compile_lock); |
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1160 ResourceMark rm; |
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1161 #if INCLUDE_JVMTI |
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1162 out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); |
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1163 out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); |
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1164 out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); |
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1165 #endif // INCLUDE_JVMTI |
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1166 |
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1167 GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); |
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1168 out->print_cr("# %d ciObject found", objects->length()); |
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1169 for (int i = 0; i < objects->length(); i++) { |
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1170 objects->at(i)->dump_replay_data(out); |
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1171 } |
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1172 CompileTask* task = this->task(); |
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1173 Method* method = task->method(); |
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1174 int entry_bci = task->osr_bci(); |
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1175 int comp_level = task->comp_level(); |
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1176 // Klass holder = method->method_holder(); |
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1177 out->print_cr("compile %s %s %s %d %d", |
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1178 method->klass_name()->as_quoted_ascii(), |
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1179 method->name()->as_quoted_ascii(), |
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1180 method->signature()->as_quoted_ascii(), |
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1181 entry_bci, comp_level); |
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1182 out->flush(); |
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1183 } |