Mercurial > hg > truffle
annotate src/share/vm/ci/ciEnv.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
author | twisti |
---|---|
date | Tue, 24 Jul 2012 10:51:00 -0700 |
parents | 5eb9169b1a14 |
children | 957c266d8bc5 7f813940ac35 |
rev | line source |
---|---|
0 | 1 /* |
2426
1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
trims
parents:
2263
diff
changeset
|
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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1507
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1507
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1507
diff
changeset
|
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" | |
53 #include "runtime/init.hpp" | |
54 #include "runtime/reflection.hpp" | |
55 #include "runtime/sharedRuntime.hpp" | |
56 #include "utilities/dtrace.hpp" | |
57 #ifdef COMPILER1 | |
58 #include "c1/c1_Runtime1.hpp" | |
59 #endif | |
60 #ifdef COMPILER2 | |
61 #include "opto/runtime.hpp" | |
62 #endif | |
0 | 63 |
64 // ciEnv | |
65 // | |
66 // This class is the top level broker for requests from the compiler | |
67 // to the VM. | |
68 | |
69 ciObject* ciEnv::_null_object_instance; | |
70 ciMethodKlass* ciEnv::_method_klass_instance; | |
71 ciKlassKlass* ciEnv::_klass_klass_instance; | |
72 ciInstanceKlassKlass* ciEnv::_instance_klass_klass_instance; | |
73 ciTypeArrayKlassKlass* ciEnv::_type_array_klass_klass_instance; | |
74 ciObjArrayKlassKlass* ciEnv::_obj_array_klass_klass_instance; | |
75 | |
1142 | 76 #define WK_KLASS_DEFN(name, ignore_s, ignore_o) ciInstanceKlass* ciEnv::_##name = NULL; |
77 WK_KLASSES_DO(WK_KLASS_DEFN) | |
78 #undef WK_KLASS_DEFN | |
0 | 79 |
80 ciSymbol* ciEnv::_unloaded_cisymbol = NULL; | |
81 ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL; | |
82 ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL; | |
83 | |
84 jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL; | |
85 jobject ciEnv::_ArrayStoreException_handle = NULL; | |
86 jobject ciEnv::_ClassCastException_handle = NULL; | |
87 | |
88 #ifndef PRODUCT | |
89 static bool firstEnv = true; | |
90 #endif /* PRODUCT */ | |
91 | |
92 // ------------------------------------------------------------------ | |
93 // ciEnv::ciEnv | |
94 ciEnv::ciEnv(CompileTask* task, int system_dictionary_modification_counter) { | |
95 VM_ENTRY_MARK; | |
96 | |
97 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
98 thread->set_env(this); | |
99 assert(ciEnv::current() == this, "sanity"); | |
100 | |
101 _oop_recorder = NULL; | |
102 _debug_info = NULL; | |
103 _dependencies = NULL; | |
104 _failure_reason = NULL; | |
105 _compilable = MethodCompilable; | |
106 _break_at_compile = false; | |
107 _compiler_data = NULL; | |
108 #ifndef PRODUCT | |
109 assert(!firstEnv, "not initialized properly"); | |
110 #endif /* !PRODUCT */ | |
111 | |
112 _system_dictionary_modification_counter = system_dictionary_modification_counter; | |
113 _num_inlined_bytecodes = 0; | |
114 assert(task == NULL || thread->task() == task, "sanity"); | |
115 _task = task; | |
116 _log = NULL; | |
117 | |
118 // Temporary buffer for creating symbols and such. | |
119 _name_buffer = NULL; | |
120 _name_buffer_len = 0; | |
121 | |
122 _arena = &_ciEnv_arena; | |
123 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
124 | |
125 // Preload commonly referenced system ciObjects. | |
126 | |
127 // During VM initialization, these instances have not yet been created. | |
128 // Assertions ensure that these instances are not accessed before | |
129 // their initialization. | |
130 | |
131 assert(Universe::is_fully_initialized(), "should be complete"); | |
132 | |
133 oop o = Universe::null_ptr_exception_instance(); | |
134 assert(o != NULL, "should have been initialized"); | |
135 _NullPointerException_instance = get_object(o)->as_instance(); | |
136 o = Universe::arithmetic_exception_instance(); | |
137 assert(o != NULL, "should have been initialized"); | |
138 _ArithmeticException_instance = get_object(o)->as_instance(); | |
139 | |
140 _ArrayIndexOutOfBoundsException_instance = NULL; | |
141 _ArrayStoreException_instance = NULL; | |
142 _ClassCastException_instance = NULL; | |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
143 _the_null_string = NULL; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
144 _the_min_jint_string = NULL; |
0 | 145 } |
146 | |
147 ciEnv::ciEnv(Arena* arena) { | |
148 ASSERT_IN_VM; | |
149 | |
150 // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. | |
151 CompilerThread* current_thread = CompilerThread::current(); | |
152 assert(current_thread->env() == NULL, "must be"); | |
153 current_thread->set_env(this); | |
154 assert(ciEnv::current() == this, "sanity"); | |
155 | |
156 _oop_recorder = NULL; | |
157 _debug_info = NULL; | |
158 _dependencies = NULL; | |
159 _failure_reason = NULL; | |
160 _compilable = MethodCompilable_never; | |
161 _break_at_compile = false; | |
162 _compiler_data = NULL; | |
163 #ifndef PRODUCT | |
164 assert(firstEnv, "must be first"); | |
165 firstEnv = false; | |
166 #endif /* !PRODUCT */ | |
167 | |
168 _system_dictionary_modification_counter = 0; | |
169 _num_inlined_bytecodes = 0; | |
170 _task = NULL; | |
171 _log = NULL; | |
172 | |
173 // Temporary buffer for creating symbols and such. | |
174 _name_buffer = NULL; | |
175 _name_buffer_len = 0; | |
176 | |
177 _arena = arena; | |
178 _factory = new (_arena) ciObjectFactory(_arena, 128); | |
179 | |
180 // Preload commonly referenced system ciObjects. | |
181 | |
182 // During VM initialization, these instances have not yet been created. | |
183 // Assertions ensure that these instances are not accessed before | |
184 // their initialization. | |
185 | |
186 assert(Universe::is_fully_initialized(), "must be"); | |
187 | |
188 oop o = Universe::null_ptr_exception_instance(); | |
189 assert(o != NULL, "should have been initialized"); | |
190 _NullPointerException_instance = get_object(o)->as_instance(); | |
191 o = Universe::arithmetic_exception_instance(); | |
192 assert(o != NULL, "should have been initialized"); | |
193 _ArithmeticException_instance = get_object(o)->as_instance(); | |
194 | |
195 _ArrayIndexOutOfBoundsException_instance = NULL; | |
196 _ArrayStoreException_instance = NULL; | |
197 _ClassCastException_instance = NULL; | |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
198 _the_null_string = NULL; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
199 _the_min_jint_string = NULL; |
0 | 200 } |
201 | |
202 ciEnv::~ciEnv() { | |
203 CompilerThread* current_thread = CompilerThread::current(); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
204 _factory->remove_symbols(); |
0 | 205 current_thread->set_env(NULL); |
206 } | |
207 | |
208 // ------------------------------------------------------------------ | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
209 // Cache Jvmti state |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
210 void ciEnv::cache_jvmti_state() { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
211 VM_ENTRY_MARK; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
212 // Get Jvmti capabilities under lock to get consistant values. |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
213 MutexLocker mu(JvmtiThreadState_lock); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
214 _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
215 _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
1213
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1142
diff
changeset
|
216 _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
217 } |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
218 |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
219 // ------------------------------------------------------------------ |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
220 // Cache DTrace flags |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
221 void ciEnv::cache_dtrace_flags() { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
222 // Need lock? |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
223 _dtrace_extended_probes = ExtendedDTraceProbes; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
224 if (_dtrace_extended_probes) { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
225 _dtrace_monitor_probes = true; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
226 _dtrace_method_probes = true; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
227 _dtrace_alloc_probes = true; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
228 } else { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
229 _dtrace_monitor_probes = DTraceMonitorProbes; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
230 _dtrace_method_probes = DTraceMethodProbes; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
231 _dtrace_alloc_probes = DTraceAllocProbes; |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
232 } |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
233 } |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
234 |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
235 // ------------------------------------------------------------------ |
0 | 236 // helper for lazy exception creation |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
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, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
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, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
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, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
280 vmSymbols::java_lang_ClassCastException()); |
0 | 281 } |
282 return _ClassCastException_instance; | |
283 } | |
284 | |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
285 ciInstance* ciEnv::the_null_string() { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
286 if (_the_null_string == NULL) { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
287 VM_ENTRY_MARK; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
288 _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
289 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
290 return _the_null_string; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
291 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
292 |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
293 ciInstance* ciEnv::the_min_jint_string() { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
294 if (_the_min_jint_string == NULL) { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
295 VM_ENTRY_MARK; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
296 _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
297 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
298 return _the_min_jint_string; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
299 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
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 | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
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, | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
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 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
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. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
385 // Call recursive to keep scope of strippedsym. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
386 TempNewSymbol strippedsym = SymbolTable::new_symbol(sym->as_utf8()+1, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
387 sym->utf8_length()-2, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
388 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
389 ciSymbol* strippedname = get_symbol(strippedsym); |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
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 } | |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
415 KlassHandle found_klass; |
2244
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
416 { |
2263
5841dc1964f0
7021531: lock ordering problems after fix for 6354181
never
parents:
2244
diff
changeset
|
417 ttyUnlocker ttyul; // release tty lock to avoid ordering problems |
2244
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
418 MutexLocker ml(Compile_lock); |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
419 klassOop kls; |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
420 if (!require_local) { |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
421 kls = SystemDictionary::find_constrained_instance_or_array_klass(sym, loader, |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
422 KILL_COMPILE_ON_FATAL_(fail_type)); |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
423 } else { |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
424 kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain, |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
425 KILL_COMPILE_ON_FATAL_(fail_type)); |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
426 } |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
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. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
440 TempNewSymbol elem_sym = SymbolTable::new_symbol(sym->as_utf8()+1, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
441 sym->utf8_length()-1, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
442 KILL_COMPILE_ON_FATAL_(fail_type)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
443 |
0 | 444 // Get element ciKlass recursively. |
445 ciKlass* elem_klass = | |
446 get_klass_by_name_impl(accessing_klass, | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
447 cpool, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
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 | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
456 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
457 // Look inside the constant pool for pre-resolved class entries. |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
458 for (int i = cpool->length() - 1; i >= 1; i--) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
459 if (cpool->tag_at(i).is_klass()) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
460 klassOop kls = cpool->resolved_klass_at(i); |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
461 if (Klass::cast(kls)->name() == sym) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
462 found_klass = KlassHandle(THREAD, kls); |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
463 break; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
464 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
465 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
466 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
467 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
468 |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
469 if (found_klass() != NULL) { |
0 | 470 // Found it. Build a CI handle. |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
471 return get_object(found_klass())->as_klass(); |
0 | 472 } |
473 | |
474 if (require_local) return NULL; | |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
475 |
0 | 476 // Not yet loaded into the VM, or not governed by loader constraints. |
477 // Make a CI representative for it. | |
478 return get_unloaded_klass(accessing_klass, name); | |
479 } | |
480 | |
481 // ------------------------------------------------------------------ | |
482 // ciEnv::get_klass_by_name | |
483 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, | |
484 ciSymbol* klass_name, | |
485 bool require_local) { | |
486 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
487 constantPoolHandle(), |
0 | 488 klass_name, |
489 require_local);) | |
490 } | |
491 | |
492 // ------------------------------------------------------------------ | |
493 // ciEnv::get_klass_by_index_impl | |
494 // | |
495 // Implementation of get_klass_by_index. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
496 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 497 int index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
498 bool& is_accessible, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
499 ciInstanceKlass* accessor) { |
0 | 500 EXCEPTION_CONTEXT; |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
501 KlassHandle klass(THREAD, constantPoolOopDesc::klass_at_if_loaded(cpool, index)); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
502 Symbol* klass_name = NULL; |
0 | 503 if (klass.is_null()) { |
504 // The klass has not been inserted into the constant pool. | |
505 // Try to look it up by name. | |
506 { | |
507 // We have to lock the cpool to keep the oop from being resolved | |
508 // while we are accessing it. | |
509 ObjectLocker ol(cpool, THREAD); | |
510 | |
511 constantTag tag = cpool->tag_at(index); | |
512 if (tag.is_klass()) { | |
513 // The klass has been inserted into the constant pool | |
514 // very recently. | |
515 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); | |
516 } else if (tag.is_symbol()) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
517 klass_name = cpool->symbol_at(index); |
0 | 518 } else { |
519 assert(cpool->tag_at(index).is_unresolved_klass(), "wrong tag"); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
520 klass_name = cpool->unresolved_klass_at(index); |
0 | 521 } |
522 } | |
523 } | |
524 | |
525 if (klass.is_null()) { | |
526 // Not found in constant pool. Use the name to do the lookup. | |
527 ciKlass* k = get_klass_by_name_impl(accessor, | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
528 cpool, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
529 get_symbol(klass_name), |
0 | 530 false); |
531 // Calculate accessibility the hard way. | |
532 if (!k->is_loaded()) { | |
533 is_accessible = false; | |
534 } else if (k->loader() != accessor->loader() && | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
535 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { |
0 | 536 // Loaded only remotely. Not linked yet. |
537 is_accessible = false; | |
538 } else { | |
539 // Linked locally, and we must also check public/private, etc. | |
540 is_accessible = check_klass_accessibility(accessor, k->get_klassOop()); | |
541 } | |
542 return k; | |
543 } | |
544 | |
545 // Check for prior unloaded klass. The SystemDictionary's answers | |
546 // can vary over time but the compiler needs consistency. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
547 ciSymbol* name = get_symbol(klass()->klass_part()->name()); |
0 | 548 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); |
549 if (unloaded_klass != NULL) { | |
550 is_accessible = false; | |
551 return unloaded_klass; | |
552 } | |
553 | |
554 // It is known to be accessible, since it was found in the constant pool. | |
555 is_accessible = true; | |
556 return get_object(klass())->as_klass(); | |
557 } | |
558 | |
559 // ------------------------------------------------------------------ | |
560 // ciEnv::get_klass_by_index | |
561 // | |
562 // Get a klass from the constant pool. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
563 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, |
0 | 564 int index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
565 bool& is_accessible, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
566 ciInstanceKlass* accessor) { |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
567 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) |
0 | 568 } |
569 | |
570 // ------------------------------------------------------------------ | |
571 // ciEnv::get_constant_by_index_impl | |
572 // | |
573 // Implementation of get_constant_by_index(). | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
574 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, |
1602 | 575 int pool_index, int cache_index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
576 ciInstanceKlass* accessor) { |
1602 | 577 bool ignore_will_link; |
0 | 578 EXCEPTION_CONTEXT; |
1602 | 579 int index = pool_index; |
580 if (cache_index >= 0) { | |
581 assert(index < 0, "only one kind of index at a time"); | |
582 ConstantPoolCacheEntry* cpc_entry = cpool->cache()->entry_at(cache_index); | |
583 index = cpc_entry->constant_pool_index(); | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
584 oop obj = cpc_entry->f1_as_instance(); |
1602 | 585 if (obj != NULL) { |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
586 assert(obj->is_instance() || obj->is_array(), "must be a Java reference"); |
1602 | 587 ciObject* ciobj = get_object(obj); |
588 return ciConstant(T_OBJECT, ciobj); | |
589 } | |
590 } | |
0 | 591 constantTag tag = cpool->tag_at(index); |
592 if (tag.is_int()) { | |
593 return ciConstant(T_INT, (jint)cpool->int_at(index)); | |
594 } else if (tag.is_long()) { | |
595 return ciConstant((jlong)cpool->long_at(index)); | |
596 } else if (tag.is_float()) { | |
597 return ciConstant((jfloat)cpool->float_at(index)); | |
598 } else if (tag.is_double()) { | |
599 return ciConstant((jdouble)cpool->double_at(index)); | |
600 } else if (tag.is_string() || tag.is_unresolved_string()) { | |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
601 oop string = NULL; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
602 if (cpool->is_pseudo_string_at(index)) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
603 string = cpool->pseudo_string_at(index); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
604 } else { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
605 string = cpool->string_at(index, THREAD); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
606 if (HAS_PENDING_EXCEPTION) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
607 CLEAR_PENDING_EXCEPTION; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
608 record_out_of_memory_failure(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
609 return ciConstant(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
610 } |
0 | 611 } |
612 ciObject* constant = get_object(string); | |
613 assert (constant->is_instance(), "must be an instance, or not? "); | |
614 return ciConstant(T_OBJECT, constant); | |
615 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
616 // 4881222: allow ldc to take a class type | |
1602 | 617 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); |
0 | 618 if (HAS_PENDING_EXCEPTION) { |
619 CLEAR_PENDING_EXCEPTION; | |
620 record_out_of_memory_failure(); | |
621 return ciConstant(); | |
622 } | |
623 assert (klass->is_instance_klass() || klass->is_array_klass(), | |
624 "must be an instance or array klass "); | |
1602 | 625 return ciConstant(T_OBJECT, klass->java_mirror()); |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
626 } else if (tag.is_object()) { |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
627 oop obj = cpool->object_at(index); |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
628 assert(obj->is_instance() || obj->is_array(), "must be a Java reference"); |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
629 ciObject* ciobj = get_object(obj); |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
630 return ciConstant(T_OBJECT, ciobj); |
1602 | 631 } else if (tag.is_method_type()) { |
632 // must execute Java code to link this CP entry into cache[i].f1 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
633 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); |
1602 | 634 ciObject* ciobj = get_unloaded_method_type_constant(signature); |
635 return ciConstant(T_OBJECT, ciobj); | |
636 } else if (tag.is_method_handle()) { | |
637 // must execute Java code to link this CP entry into cache[i].f1 | |
638 int ref_kind = cpool->method_handle_ref_kind_at(index); | |
639 int callee_index = cpool->method_handle_klass_index_at(index); | |
640 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
641 ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
642 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); |
1602 | 643 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); |
644 return ciConstant(T_OBJECT, ciobj); | |
0 | 645 } else { |
646 ShouldNotReachHere(); | |
647 return ciConstant(); | |
648 } | |
649 } | |
650 | |
651 // ------------------------------------------------------------------ | |
652 // ciEnv::get_constant_by_index | |
653 // | |
654 // Pull a constant out of the constant pool. How appropriate. | |
655 // | |
656 // Implementation note: this query is currently in no way cached. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
657 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, |
1602 | 658 int pool_index, int cache_index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
659 ciInstanceKlass* accessor) { |
1602 | 660 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) |
0 | 661 } |
662 | |
663 // ------------------------------------------------------------------ | |
664 // ciEnv::get_field_by_index_impl | |
665 // | |
666 // Implementation of get_field_by_index. | |
667 // | |
668 // Implementation note: the results of field lookups are cached | |
669 // in the accessor klass. | |
670 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, | |
671 int index) { | |
672 ciConstantPoolCache* cache = accessor->field_cache(); | |
673 if (cache == NULL) { | |
674 ciField* field = new (arena()) ciField(accessor, index); | |
675 return field; | |
676 } else { | |
677 ciField* field = (ciField*)cache->get(index); | |
678 if (field == NULL) { | |
679 field = new (arena()) ciField(accessor, index); | |
680 cache->insert(index, field); | |
681 } | |
682 return field; | |
683 } | |
684 } | |
685 | |
686 // ------------------------------------------------------------------ | |
687 // ciEnv::get_field_by_index | |
688 // | |
689 // Get a field by index from a klass's constant pool. | |
690 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, | |
691 int index) { | |
692 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) | |
693 } | |
694 | |
695 // ------------------------------------------------------------------ | |
696 // ciEnv::lookup_method | |
697 // | |
698 // Perform an appropriate method lookup based on accessor, holder, | |
699 // name, signature, and bytecode. | |
700 methodOop ciEnv::lookup_method(instanceKlass* accessor, | |
701 instanceKlass* holder, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
702 Symbol* name, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
703 Symbol* sig, |
0 | 704 Bytecodes::Code bc) { |
705 EXCEPTION_CONTEXT; | |
706 KlassHandle h_accessor(THREAD, accessor); | |
707 KlassHandle h_holder(THREAD, holder); | |
708 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); | |
709 methodHandle dest_method; | |
710 switch (bc) { | |
711 case Bytecodes::_invokestatic: | |
712 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
713 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); |
0 | 714 break; |
715 case Bytecodes::_invokespecial: | |
716 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
717 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); |
0 | 718 break; |
719 case Bytecodes::_invokeinterface: | |
720 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
721 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, |
0 | 722 h_accessor, true); |
723 break; | |
724 case Bytecodes::_invokevirtual: | |
725 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
726 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, |
0 | 727 h_accessor, true); |
728 break; | |
729 default: ShouldNotReachHere(); | |
730 } | |
731 | |
732 return dest_method(); | |
733 } | |
734 | |
735 | |
736 // ------------------------------------------------------------------ | |
737 // ciEnv::get_method_by_index_impl | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
738 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
739 int index, Bytecodes::Code bc, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
740 ciInstanceKlass* accessor) { |
0 | 741 int holder_index = cpool->klass_ref_index_at(index); |
742 bool holder_is_accessible; | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
743 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
0 | 744 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); |
745 | |
746 // Get the method's name and signature. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
747 Symbol* name_sym = cpool->name_ref_at(index); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
748 Symbol* sig_sym = cpool->signature_ref_at(index); |
0 | 749 |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
750 if (cpool->has_preresolution() |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
751 || (holder == ciEnv::MethodHandle_klass() && |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
752 MethodHandles::is_signature_polymorphic_name(holder->get_klassOop(), name_sym))) { |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
753 // Short-circuit lookups for JSR 292-related call sites. |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
754 // That is, do not rely only on name-based lookups, because they may fail |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
755 // if the names are not resolvable in the boot class loader (7056328). |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
756 switch (bc) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
757 case Bytecodes::_invokevirtual: |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
758 case Bytecodes::_invokeinterface: |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
759 case Bytecodes::_invokespecial: |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
760 case Bytecodes::_invokestatic: |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
761 { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
762 oop appendix_oop = NULL; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
763 methodOop m = constantPoolOopDesc::method_at_if_loaded(cpool, index); |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
764 if (m != NULL) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
765 return get_object(m)->as_method(); |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
766 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
767 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
768 break; |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
769 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
770 } |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
771 |
0 | 772 if (holder_is_accessible) { // Our declared holder is loaded. |
773 instanceKlass* lookup = declared_holder->get_instanceKlass(); | |
774 methodOop m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
775 if (m != NULL && |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
776 (bc == Bytecodes::_invokestatic |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
777 ? instanceKlass::cast(m->method_holder())->is_not_initialized() |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
778 : !instanceKlass::cast(m->method_holder())->is_loaded())) { |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
779 m = NULL; |
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
780 } |
0 | 781 if (m != NULL) { |
782 // We found the method. | |
783 return get_object(m)->as_method(); | |
784 } | |
785 } | |
786 | |
787 // Either the declared holder was not loaded, or the method could | |
788 // not be found. Create a dummy ciMethod to represent the failed | |
789 // lookup. | |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
790 ciSymbol* name = get_symbol(name_sym); |
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
791 ciSymbol* signature = get_symbol(sig_sym); |
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
792 return get_unloaded_method(declared_holder, name, signature, accessor); |
0 | 793 } |
794 | |
795 | |
796 // ------------------------------------------------------------------ | |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
797 // ciEnv::get_fake_invokedynamic_method_impl |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
798 ciMethod* ciEnv::get_fake_invokedynamic_method_impl(constantPoolHandle cpool, |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
799 int index, Bytecodes::Code bc, |
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
800 ciInstanceKlass* accessor) { |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1397
diff
changeset
|
801 // Compare the following logic with InterpreterRuntime::resolve_invokedynamic. |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
802 assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic"); |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
803 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
804 ConstantPoolCacheEntry* secondary_entry = cpool->cache()->secondary_entry_at(index); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
805 bool is_resolved = !secondary_entry->is_f1_null(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
806 // FIXME: code generation could allow for null (unlinked) call site |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
807 // The call site could be made patchable as follows: |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
808 // Load the appendix argument from the constant pool. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
809 // Test the appendix argument and jump to a known deopt routine if it is null. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
810 // Jump through a patchable call site, which is initially a deopt routine. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
811 // Patch the call site to the nmethod entry point of the static compiled lambda form. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
812 // As with other two-component call sites, both values must be independently verified. |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
813 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
814 // Call site might not be resolved yet. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
815 // Stop the code path here with an unlinked method. |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1397
diff
changeset
|
816 if (!is_resolved) { |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
817 ciInstanceKlass* holder = get_object(SystemDictionary::MethodHandle_klass())->as_instance_klass(); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
818 ciSymbol* name = ciSymbol::invokeBasic_name(); |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
819 ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); |
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
820 return get_unloaded_method(holder, name, signature, accessor); |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
821 } |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
822 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
823 // Get the invoker methodOop and the extra argument from the constant pool. |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
824 methodOop adapter = secondary_entry->f2_as_vfinal_method(); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
825 return get_object(adapter)->as_method(); |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
826 } |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
827 |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
828 |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
829 // ------------------------------------------------------------------ |
0 | 830 // ciEnv::get_instance_klass_for_declared_method_holder |
831 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { | |
832 // For the case of <array>.clone(), the method holder can be a ciArrayKlass | |
833 // instead of a ciInstanceKlass. For that case simply pretend that the | |
834 // declared holder is Object.clone since that's where the call will bottom out. | |
835 // A more correct fix would trickle out through many interfaces in CI, | |
836 // requiring ciInstanceKlass* to become ciKlass* and many more places would | |
837 // require checks to make sure the expected type was found. Given that this | |
838 // only occurs for clone() the more extensive fix seems like overkill so | |
839 // instead we simply smear the array type into Object. | |
840 if (method_holder->is_instance_klass()) { | |
841 return method_holder->as_instance_klass(); | |
842 } else if (method_holder->is_array_klass()) { | |
843 return current()->Object_klass(); | |
844 } else { | |
845 ShouldNotReachHere(); | |
846 } | |
847 return NULL; | |
848 } | |
849 | |
850 | |
851 // ------------------------------------------------------------------ | |
852 // ciEnv::get_method_by_index | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
853 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
854 int index, Bytecodes::Code bc, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
855 ciInstanceKlass* accessor) { |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
856 if (bc == Bytecodes::_invokedynamic) { |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
857 GUARDED_VM_ENTRY(return get_fake_invokedynamic_method_impl(cpool, index, bc, accessor);) |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
858 } else { |
4001
5eb9169b1a14
7092712: JSR 292: unloaded invokedynamic call sites can lead to a crash with signature types not on BCP
twisti
parents:
3959
diff
changeset
|
859 GUARDED_VM_ENTRY(return get_method_by_index_impl( cpool, index, bc, accessor);) |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
860 } |
0 | 861 } |
862 | |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
863 |
0 | 864 // ------------------------------------------------------------------ |
865 // ciEnv::name_buffer | |
866 char *ciEnv::name_buffer(int req_len) { | |
867 if (_name_buffer_len < req_len) { | |
868 if (_name_buffer == NULL) { | |
869 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); | |
870 _name_buffer_len = req_len; | |
871 } else { | |
872 _name_buffer = | |
873 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); | |
874 _name_buffer_len = req_len; | |
875 } | |
876 } | |
877 return _name_buffer; | |
878 } | |
879 | |
880 // ------------------------------------------------------------------ | |
881 // ciEnv::is_in_vm | |
882 bool ciEnv::is_in_vm() { | |
883 return JavaThread::current()->thread_state() == _thread_in_vm; | |
884 } | |
885 | |
886 bool ciEnv::system_dictionary_modification_counter_changed() { | |
887 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); | |
888 } | |
889 | |
890 // ------------------------------------------------------------------ | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
891 // ciEnv::validate_compile_task_dependencies |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
892 // |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
893 // Check for changes during compilation (e.g. class loads, evolution, |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
894 // breakpoints, call site invalidation). |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
895 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { |
0 | 896 if (failing()) return; // no need for further checks |
897 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
898 // First, check non-klass dependencies as we might return early and |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
899 // not check klass dependencies if the system dictionary |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
900 // modification counter hasn't changed (see below). |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
901 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
902 if (deps.is_klass_type()) continue; // skip klass dependencies |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
903 klassOop witness = deps.check_dependency(); |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
904 if (witness != NULL) { |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
905 record_failure("invalid non-klass dependency"); |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
906 return; |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
907 } |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
908 } |
0 | 909 |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
910 // Klass dependencies must be checked when the system dictionary |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
911 // changes. If logging is enabled all violated dependences will be |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
912 // recorded in the log. In debug mode check dependencies even if |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
913 // the system dictionary hasn't changed to verify that no invalid |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
914 // dependencies were inserted. Any violated dependences in this |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
915 // case are dumped to the tty. |
0 | 916 bool counter_changed = system_dictionary_modification_counter_changed(); |
917 | |
3959 | 918 bool verify_deps = trueInDebug; |
919 if (!counter_changed && !verify_deps) return; | |
920 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
921 int klass_violations = 0; |
0 | 922 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
923 if (!deps.is_klass_type()) continue; // skip non-klass dependencies |
0 | 924 klassOop witness = deps.check_dependency(); |
925 if (witness != NULL) { | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
926 klass_violations++; |
3959 | 927 if (!counter_changed) { |
928 // Dependence failed but counter didn't change. Log a message | |
929 // describing what failed and allow the assert at the end to | |
930 // trigger. | |
931 deps.print_dependency(witness); | |
932 } else if (xtty == NULL) { | |
933 // If we're not logging then a single violation is sufficient, | |
934 // otherwise we want to log all the dependences which were | |
935 // violated. | |
936 break; | |
937 } | |
0 | 938 } |
939 } | |
940 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
941 if (klass_violations != 0) { |
3959 | 942 #ifdef ASSERT |
943 if (!counter_changed && !PrintCompilation) { | |
944 // Print out the compile task that failed | |
945 _task->print_line(); | |
946 } | |
947 #endif | |
0 | 948 assert(counter_changed, "failed dependencies, but counter didn't change"); |
949 record_failure("concurrent class loading"); | |
950 } | |
951 } | |
952 | |
953 // ------------------------------------------------------------------ | |
954 // ciEnv::register_method | |
955 void ciEnv::register_method(ciMethod* target, | |
956 int entry_bci, | |
957 CodeOffsets* offsets, | |
958 int orig_pc_offset, | |
959 CodeBuffer* code_buffer, | |
960 int frame_words, | |
961 OopMapSet* oop_map_set, | |
962 ExceptionHandlerTable* handler_table, | |
963 ImplicitExceptionTable* inc_table, | |
964 AbstractCompiler* compiler, | |
965 int comp_level, | |
966 bool has_unsafe_access) { | |
967 VM_ENTRY_MARK; | |
968 nmethod* nm = NULL; | |
969 { | |
970 // To prevent compile queue updates. | |
971 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
972 | |
973 // Prevent SystemDictionary::add_to_hierarchy from running | |
974 // and invalidating our dependencies until we install this method. | |
975 MutexLocker ml(Compile_lock); | |
976 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
977 // Change in Jvmti state may invalidate compilation. |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
978 if (!failing() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
979 ( (!jvmti_can_hotswap_or_post_breakpoint() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
980 JvmtiExport::can_hotswap_or_post_breakpoint()) || |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
981 (!jvmti_can_access_local_variables() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
982 JvmtiExport::can_access_local_variables()) || |
1213
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1142
diff
changeset
|
983 (!jvmti_can_post_on_exceptions() && |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1142
diff
changeset
|
984 JvmtiExport::can_post_on_exceptions()) )) { |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
985 record_failure("Jvmti state change invalidated dependencies"); |
0 | 986 } |
987 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
988 // Change in DTrace flags may invalidate compilation. |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
989 if (!failing() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
990 ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
991 (!dtrace_method_probes() && DTraceMethodProbes) || |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
992 (!dtrace_alloc_probes() && DTraceAllocProbes) )) { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
993 record_failure("DTrace flags change invalidated dependencies"); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
994 } |
0 | 995 |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
996 if (!failing()) { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
997 if (log() != NULL) { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
998 // Log the dependencies which this compilation declares. |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
999 dependencies()->log_all_dependencies(); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1000 } |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1001 |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1002 // Encode the dependencies now, so we can check them right away. |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1003 dependencies()->encode_content_bytes(); |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1004 |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
1005 // Check for {class loads, evolution, breakpoints, ...} during compilation |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3785
diff
changeset
|
1006 validate_compile_task_dependencies(target); |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
1007 } |
0 | 1008 |
1009 methodHandle method(THREAD, target->get_methodOop()); | |
1010 | |
1011 if (failing()) { | |
1012 // While not a true deoptimization, it is a preemptive decompile. | |
1013 methodDataOop mdo = method()->method_data(); | |
1014 if (mdo != NULL) { | |
1015 mdo->inc_decompile_count(); | |
1016 } | |
1017 | |
1018 // All buffers in the CodeBuffer are allocated in the CodeCache. | |
1019 // If the code buffer is created on each compile attempt | |
1020 // as in C2, then it must be freed. | |
1021 code_buffer->free_blob(); | |
1022 return; | |
1023 } | |
1024 | |
1025 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); | |
1026 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); | |
1027 | |
1028 nm = nmethod::new_nmethod(method, | |
1029 compile_id(), | |
1030 entry_bci, | |
1031 offsets, | |
1032 orig_pc_offset, | |
1033 debug_info(), dependencies(), code_buffer, | |
1034 frame_words, oop_map_set, | |
1035 handler_table, inc_table, | |
1036 compiler, comp_level); | |
1037 | |
1038 // Free codeBlobs | |
1039 code_buffer->free_blob(); | |
1040 | |
1041 // stress test 6243940 by immediately making the method | |
1042 // non-entrant behind the system's back. This has serious | |
1043 // side effects on the code cache and is not meant for | |
1044 // general stress testing | |
1045 if (nm != NULL && StressNonEntrant) { | |
1046 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1047 NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(), | |
1048 SharedRuntime::get_handle_wrong_method_stub()); | |
1049 } | |
1050 | |
1051 if (nm == NULL) { | |
1052 // The CodeCache is full. Print out warning and disable compilation. | |
1053 record_failure("code cache is full"); | |
1202 | 1054 { |
1055 MutexUnlocker ml(Compile_lock); | |
1056 MutexUnlocker locker(MethodCompileQueue_lock); | |
1057 CompileBroker::handle_full_code_cache(); | |
0 | 1058 } |
1059 } else { | |
1060 nm->set_has_unsafe_access(has_unsafe_access); | |
1061 | |
1062 // Record successful registration. | |
1063 // (Put nm into the task handle *before* publishing to the Java heap.) | |
1064 if (task() != NULL) task()->set_code(nm); | |
1065 | |
1066 if (entry_bci == InvocationEntryBci) { | |
1783 | 1067 if (TieredCompilation) { |
1068 // If there is an old version we're done with it | |
1069 nmethod* old = method->code(); | |
1070 if (TraceMethodReplacement && old != NULL) { | |
1071 ResourceMark rm; | |
1072 char *method_name = method->name_and_sig_as_C_string(); | |
1073 tty->print_cr("Replacing method %s", method_name); | |
1074 } | |
1075 if (old != NULL ) { | |
1076 old->make_not_entrant(); | |
1077 } | |
0 | 1078 } |
1079 if (TraceNMethodInstalls ) { | |
1080 ResourceMark rm; | |
1081 char *method_name = method->name_and_sig_as_C_string(); | |
1082 ttyLocker ttyl; | |
1083 tty->print_cr("Installing method (%d) %s ", | |
1084 comp_level, | |
1085 method_name); | |
1086 } | |
1087 // Allow the code to be executed | |
1088 method->set_code(method, nm); | |
1089 } else { | |
1090 if (TraceNMethodInstalls ) { | |
1091 ResourceMark rm; | |
1092 char *method_name = method->name_and_sig_as_C_string(); | |
1093 ttyLocker ttyl; | |
1094 tty->print_cr("Installing osr method (%d) %s @ %d", | |
1095 comp_level, | |
1096 method_name, | |
1097 entry_bci); | |
1098 } | |
1099 instanceKlass::cast(method->method_holder())->add_osr_nmethod(nm); | |
1100 | |
1101 } | |
1102 } | |
1103 } | |
1104 // JVMTI -- compiled method notification (must be done outside lock) | |
1105 if (nm != NULL) { | |
1106 nm->post_compiled_method_load_event(); | |
1107 } | |
1108 | |
1109 } | |
1110 | |
1111 | |
1112 // ------------------------------------------------------------------ | |
1113 // ciEnv::find_system_klass | |
1114 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { | |
1115 VM_ENTRY_MARK; | |
3785
ddd894528dbc
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
1116 return get_klass_by_name_impl(NULL, constantPoolHandle(), klass_name, false); |
0 | 1117 } |
1118 | |
1119 // ------------------------------------------------------------------ | |
1120 // ciEnv::comp_level | |
1121 int ciEnv::comp_level() { | |
1783 | 1122 if (task() == NULL) return CompLevel_highest_tier; |
0 | 1123 return task()->comp_level(); |
1124 } | |
1125 | |
1126 // ------------------------------------------------------------------ | |
1127 // ciEnv::compile_id | |
1128 uint ciEnv::compile_id() { | |
1129 if (task() == NULL) return 0; | |
1130 return task()->compile_id(); | |
1131 } | |
1132 | |
1133 // ------------------------------------------------------------------ | |
1134 // ciEnv::notice_inlined_method() | |
1135 void ciEnv::notice_inlined_method(ciMethod* method) { | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
1136 _num_inlined_bytecodes += method->code_size_for_inlining(); |
0 | 1137 } |
1138 | |
1139 // ------------------------------------------------------------------ | |
1140 // ciEnv::num_inlined_bytecodes() | |
1141 int ciEnv::num_inlined_bytecodes() const { | |
1142 return _num_inlined_bytecodes; | |
1143 } | |
1144 | |
1145 // ------------------------------------------------------------------ | |
1146 // ciEnv::record_failure() | |
1147 void ciEnv::record_failure(const char* reason) { | |
1148 if (log() != NULL) { | |
1149 log()->elem("failure reason='%s'", reason); | |
1150 } | |
1151 if (_failure_reason == NULL) { | |
1152 // Record the first failure reason. | |
1153 _failure_reason = reason; | |
1154 } | |
1155 } | |
1156 | |
1157 // ------------------------------------------------------------------ | |
1158 // ciEnv::record_method_not_compilable() | |
1159 void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { | |
1160 int new_compilable = | |
1161 all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; | |
1162 | |
1163 // Only note transitions to a worse state | |
1164 if (new_compilable > _compilable) { | |
1165 if (log() != NULL) { | |
1166 if (all_tiers) { | |
1167 log()->elem("method_not_compilable"); | |
1168 } else { | |
1169 log()->elem("method_not_compilable_at_tier"); | |
1170 } | |
1171 } | |
1172 _compilable = new_compilable; | |
1173 | |
1174 // Reset failure reason; this one is more important. | |
1175 _failure_reason = NULL; | |
1176 record_failure(reason); | |
1177 } | |
1178 } | |
1179 | |
1180 // ------------------------------------------------------------------ | |
1181 // ciEnv::record_out_of_memory_failure() | |
1182 void ciEnv::record_out_of_memory_failure() { | |
1183 // If memory is low, we stop compiling methods. | |
1184 record_method_not_compilable("out of memory"); | |
1185 } |