Mercurial > hg > graal-compiler
annotate src/share/vm/ci/ciEnv.cpp @ 6275:957c266d8bc5
Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Tue, 21 Aug 2012 10:39:19 +0200 |
parents | 82af018d61db 1d7922586cf6 |
children | c38f13903fdf |
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; | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
96 CompilerThread* compiler_thread = CompilerThread::current(); |
0 | 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; | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
108 //#ifndef PRODUCT |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
109 // assert(!firstEnv, "not initialized properly"); |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
110 //#endif /* !PRODUCT */ |
0 | 111 |
112 _system_dictionary_modification_counter = system_dictionary_modification_counter; | |
113 _num_inlined_bytecodes = 0; | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
114 assert(task == NULL || compiler_thread->task() == task, "sanity"); |
0 | 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. | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
151 JavaThread* current_thread = JavaThread::current(); |
0 | 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; | |
3555
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
163 //#ifndef PRODUCT |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
164 // assert(firstEnv, "must be first"); |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
165 // firstEnv = false; |
22d11b3bc561
Various hacks to be able to install machine code from a Java thread.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3464
diff
changeset
|
166 //#endif /* !PRODUCT */ |
0 | 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() { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
203 _factory->remove_symbols(); |
3669
53636e2c9d03
No longer use shared ciFactory. Remove make_global usage in code installer.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3636
diff
changeset
|
204 JavaThread::current()->set_env(NULL); |
0 | 205 } |
206 | |
207 // ------------------------------------------------------------------ | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
208 // 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
|
209 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
|
210 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
|
211 // 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
|
212 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
|
213 _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
|
214 _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
|
215 _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
|
216 } |
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 // 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
|
220 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
|
221 // Need lock? |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
222 _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
|
223 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
|
224 _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
|
225 _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
|
226 _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
|
227 } else { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
228 _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
|
229 _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
|
230 _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
|
231 } |
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 // ------------------------------------------------------------------ |
0 | 235 // helper for lazy exception creation |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
236 ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { |
0 | 237 VM_ENTRY_MARK; |
238 if (handle == NULL) { | |
239 // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. | |
240 klassOop k = SystemDictionary::find(name, Handle(), Handle(), THREAD); | |
241 jobject objh = NULL; | |
242 if (!HAS_PENDING_EXCEPTION && k != NULL) { | |
243 oop obj = instanceKlass::cast(k)->allocate_permanent_instance(THREAD); | |
244 if (!HAS_PENDING_EXCEPTION) | |
245 objh = JNIHandles::make_global(obj); | |
246 } | |
247 if (HAS_PENDING_EXCEPTION) { | |
248 CLEAR_PENDING_EXCEPTION; | |
249 } else { | |
250 handle = objh; | |
251 } | |
252 } | |
253 oop obj = JNIHandles::resolve(handle); | |
254 return obj == NULL? NULL: get_object(obj)->as_instance(); | |
255 } | |
256 | |
257 // ------------------------------------------------------------------ | |
258 // ciEnv::ArrayIndexOutOfBoundsException_instance, etc. | |
259 ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { | |
260 if (_ArrayIndexOutOfBoundsException_instance == NULL) { | |
261 _ArrayIndexOutOfBoundsException_instance | |
262 = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
263 vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); |
0 | 264 } |
265 return _ArrayIndexOutOfBoundsException_instance; | |
266 } | |
267 ciInstance* ciEnv::ArrayStoreException_instance() { | |
268 if (_ArrayStoreException_instance == NULL) { | |
269 _ArrayStoreException_instance | |
270 = get_or_create_exception(_ArrayStoreException_handle, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
271 vmSymbols::java_lang_ArrayStoreException()); |
0 | 272 } |
273 return _ArrayStoreException_instance; | |
274 } | |
275 ciInstance* ciEnv::ClassCastException_instance() { | |
276 if (_ClassCastException_instance == NULL) { | |
277 _ClassCastException_instance | |
278 = get_or_create_exception(_ClassCastException_handle, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
279 vmSymbols::java_lang_ClassCastException()); |
0 | 280 } |
281 return _ClassCastException_instance; | |
282 } | |
283 | |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
284 ciInstance* ciEnv::the_null_string() { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
285 if (_the_null_string == NULL) { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
286 VM_ENTRY_MARK; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
287 _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
288 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
289 return _the_null_string; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
290 } |
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 ciInstance* ciEnv::the_min_jint_string() { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
293 if (_the_min_jint_string == NULL) { |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
294 VM_ENTRY_MARK; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
295 _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
|
296 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
297 return _the_min_jint_string; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
298 } |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1059
diff
changeset
|
299 |
0 | 300 // ------------------------------------------------------------------ |
301 // ciEnv::get_method_from_handle | |
302 ciMethod* ciEnv::get_method_from_handle(jobject method) { | |
303 VM_ENTRY_MARK; | |
304 return get_object(JNIHandles::resolve(method))->as_method(); | |
305 } | |
306 | |
307 // ------------------------------------------------------------------ | |
308 // ciEnv::make_array | |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
844
diff
changeset
|
309 ciArray* ciEnv::make_system_array(GrowableArray<ciObject*>* objects) { |
0 | 310 VM_ENTRY_MARK; |
311 int length = objects->length(); | |
312 objArrayOop a = oopFactory::new_system_objArray(length, THREAD); | |
313 if (HAS_PENDING_EXCEPTION) { | |
314 CLEAR_PENDING_EXCEPTION; | |
315 record_out_of_memory_failure(); | |
316 return NULL; | |
317 } | |
318 for (int i = 0; i < length; i++) { | |
319 a->obj_at_put(i, objects->at(i)->get_oop()); | |
320 } | |
321 assert(a->is_perm(), ""); | |
322 return get_object(a)->as_array(); | |
323 } | |
324 | |
325 | |
326 // ------------------------------------------------------------------ | |
327 // ciEnv::array_element_offset_in_bytes | |
328 int ciEnv::array_element_offset_in_bytes(ciArray* a_h, ciObject* o_h) { | |
329 VM_ENTRY_MARK; | |
330 objArrayOop a = (objArrayOop)a_h->get_oop(); | |
331 assert(a->is_objArray(), ""); | |
332 int length = a->length(); | |
333 oop o = o_h->get_oop(); | |
334 for (int i = 0; i < length; i++) { | |
335 if (a->obj_at(i) == o) return i; | |
336 } | |
337 return -1; | |
338 } | |
339 | |
340 | |
341 // ------------------------------------------------------------------ | |
342 // ciEnv::check_klass_accessiblity | |
343 // | |
344 // Note: the logic of this method should mirror the logic of | |
345 // constantPoolOopDesc::verify_constant_pool_resolve. | |
346 bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, | |
347 klassOop resolved_klass) { | |
348 if (accessing_klass == NULL || !accessing_klass->is_loaded()) { | |
349 return true; | |
350 } | |
351 if (accessing_klass->is_obj_array()) { | |
352 accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); | |
353 } | |
354 if (!accessing_klass->is_instance_klass()) { | |
355 return true; | |
356 } | |
357 | |
358 if (resolved_klass->klass_part()->oop_is_objArray()) { | |
359 // Find the element klass, if this is an array. | |
360 resolved_klass = objArrayKlass::cast(resolved_klass)->bottom_klass(); | |
361 } | |
362 if (resolved_klass->klass_part()->oop_is_instance()) { | |
363 return Reflection::verify_class_access(accessing_klass->get_klassOop(), | |
364 resolved_klass, | |
365 true); | |
366 } | |
367 return true; | |
368 } | |
369 | |
370 // ------------------------------------------------------------------ | |
371 // ciEnv::get_klass_by_name_impl | |
372 ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
373 constantPoolHandle cpool, |
0 | 374 ciSymbol* name, |
375 bool require_local) { | |
376 ASSERT_IN_VM; | |
377 EXCEPTION_CONTEXT; | |
378 | |
379 // Now we need to check the SystemDictionary | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
380 Symbol* sym = name->get_symbol(); |
0 | 381 if (sym->byte_at(0) == 'L' && |
382 sym->byte_at(sym->utf8_length()-1) == ';') { | |
383 // 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
|
384 // Call recursive to keep scope of strippedsym. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
385 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
|
386 sym->utf8_length()-2, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
387 KILL_COMPILE_ON_FATAL_(_unloaded_ciinstance_klass)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
388 ciSymbol* strippedname = get_symbol(strippedsym); |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
389 return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); |
0 | 390 } |
391 | |
392 // Check for prior unloaded klass. The SystemDictionary's answers | |
393 // can vary over time but the compiler needs consistency. | |
394 ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); | |
395 if (unloaded_klass != NULL) { | |
396 if (require_local) return NULL; | |
397 return unloaded_klass; | |
398 } | |
399 | |
400 Handle loader(THREAD, (oop)NULL); | |
401 Handle domain(THREAD, (oop)NULL); | |
402 if (accessing_klass != NULL) { | |
403 loader = Handle(THREAD, accessing_klass->loader()); | |
404 domain = Handle(THREAD, accessing_klass->protection_domain()); | |
405 } | |
406 | |
407 // setup up the proper type to return on OOM | |
408 ciKlass* fail_type; | |
409 if (sym->byte_at(0) == '[') { | |
410 fail_type = _unloaded_ciobjarrayklass; | |
411 } else { | |
412 fail_type = _unloaded_ciinstance_klass; | |
413 } | |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
414 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
|
415 { |
2263
5841dc1964f0
7021531: lock ordering problems after fix for 6354181
never
parents:
2244
diff
changeset
|
416 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
|
417 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
|
418 klassOop kls; |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
419 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
|
420 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
|
421 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
|
422 } else { |
4f26f535a225
6354181: nsk.logging.stress.threads.scmhml001 fails assertion in "src/share/vm/oops/instanceKlass.cpp, 111"
never
parents:
2177
diff
changeset
|
423 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
|
424 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
|
425 } |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
426 found_klass = KlassHandle(THREAD, kls); |
0 | 427 } |
428 | |
429 // If we fail to find an array klass, look again for its element type. | |
430 // The element type may be available either locally or via constraints. | |
431 // In either case, if we can find the element type in the system dictionary, | |
432 // we must build an array type around it. The CI requires array klasses | |
433 // to be loaded if their element klasses are loaded, except when memory | |
434 // is exhausted. | |
435 if (sym->byte_at(0) == '[' && | |
436 (sym->byte_at(1) == '[' || sym->byte_at(1) == 'L')) { | |
437 // We have an unloaded array. | |
438 // 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
|
439 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
|
440 sym->utf8_length()-1, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
441 KILL_COMPILE_ON_FATAL_(fail_type)); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
442 |
0 | 443 // Get element ciKlass recursively. |
444 ciKlass* elem_klass = | |
445 get_klass_by_name_impl(accessing_klass, | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
446 cpool, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
447 get_symbol(elem_sym), |
0 | 448 require_local); |
449 if (elem_klass != NULL && elem_klass->is_loaded()) { | |
450 // Now make an array for it | |
451 return ciObjArrayKlass::make_impl(elem_klass); | |
452 } | |
453 } | |
454 | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
455 if (found_klass() == NULL && !cpool.is_null() && cpool->has_preresolution()) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
456 // Look inside the constant pool for pre-resolved class entries. |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
457 for (int i = cpool->length() - 1; i >= 1; i--) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
458 if (cpool->tag_at(i).is_klass()) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
459 klassOop kls = cpool->resolved_klass_at(i); |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
460 if (Klass::cast(kls)->name() == sym) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
461 found_klass = KlassHandle(THREAD, kls); |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
462 break; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
463 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
464 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
465 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
466 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
467 |
2147
9afee0b9fc1d
7012505: BreakpointWithFullGC.sh fails with Internal Error (src/share/vm/oops/methodOop.cpp:220)
kamg
parents:
1972
diff
changeset
|
468 if (found_klass() != NULL) { |
0 | 469 // 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
|
470 return get_object(found_klass())->as_klass(); |
0 | 471 } |
472 | |
473 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
|
474 |
0 | 475 // Not yet loaded into the VM, or not governed by loader constraints. |
476 // Make a CI representative for it. | |
477 return get_unloaded_klass(accessing_klass, name); | |
478 } | |
479 | |
480 // ------------------------------------------------------------------ | |
481 // ciEnv::get_klass_by_name | |
482 ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, | |
483 ciSymbol* klass_name, | |
484 bool require_local) { | |
485 GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass, | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
486 constantPoolHandle(), |
0 | 487 klass_name, |
488 require_local);) | |
489 } | |
490 | |
491 // ------------------------------------------------------------------ | |
492 // ciEnv::get_klass_by_index_impl | |
493 // | |
494 // Implementation of get_klass_by_index. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
495 ciKlass* ciEnv::get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 496 int index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
497 bool& is_accessible, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
498 ciInstanceKlass* accessor) { |
0 | 499 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
|
500 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
|
501 Symbol* klass_name = NULL; |
0 | 502 if (klass.is_null()) { |
503 // The klass has not been inserted into the constant pool. | |
504 // Try to look it up by name. | |
505 { | |
506 // We have to lock the cpool to keep the oop from being resolved | |
507 // while we are accessing it. | |
508 ObjectLocker ol(cpool, THREAD); | |
509 | |
510 constantTag tag = cpool->tag_at(index); | |
511 if (tag.is_klass()) { | |
512 // The klass has been inserted into the constant pool | |
513 // very recently. | |
514 klass = KlassHandle(THREAD, cpool->resolved_klass_at(index)); | |
515 } else if (tag.is_symbol()) { | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
516 klass_name = cpool->symbol_at(index); |
0 | 517 } else { |
518 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
|
519 klass_name = cpool->unresolved_klass_at(index); |
0 | 520 } |
521 } | |
522 } | |
523 | |
524 if (klass.is_null()) { | |
525 // Not found in constant pool. Use the name to do the lookup. | |
526 ciKlass* k = get_klass_by_name_impl(accessor, | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
527 cpool, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
528 get_symbol(klass_name), |
0 | 529 false); |
530 // Calculate accessibility the hard way. | |
531 if (!k->is_loaded()) { | |
532 is_accessible = false; | |
533 } else if (k->loader() != accessor->loader() && | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
534 get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL) { |
0 | 535 // Loaded only remotely. Not linked yet. |
536 is_accessible = false; | |
537 } else { | |
538 // Linked locally, and we must also check public/private, etc. | |
539 is_accessible = check_klass_accessibility(accessor, k->get_klassOop()); | |
540 } | |
541 return k; | |
542 } | |
543 | |
544 // Check for prior unloaded klass. The SystemDictionary's answers | |
545 // can vary over time but the compiler needs consistency. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
546 ciSymbol* name = get_symbol(klass()->klass_part()->name()); |
0 | 547 ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); |
548 if (unloaded_klass != NULL) { | |
549 is_accessible = false; | |
550 return unloaded_klass; | |
551 } | |
552 | |
553 // It is known to be accessible, since it was found in the constant pool. | |
554 is_accessible = true; | |
555 return get_object(klass())->as_klass(); | |
556 } | |
557 | |
558 // ------------------------------------------------------------------ | |
559 // ciEnv::get_klass_by_index | |
560 // | |
561 // Get a klass from the constant pool. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
562 ciKlass* ciEnv::get_klass_by_index(constantPoolHandle cpool, |
0 | 563 int index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
564 bool& is_accessible, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
565 ciInstanceKlass* accessor) { |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
566 GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);) |
0 | 567 } |
568 | |
569 // ------------------------------------------------------------------ | |
570 // ciEnv::get_constant_by_index_impl | |
571 // | |
572 // Implementation of get_constant_by_index(). | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
573 ciConstant ciEnv::get_constant_by_index_impl(constantPoolHandle cpool, |
1602 | 574 int pool_index, int cache_index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
575 ciInstanceKlass* accessor) { |
1602 | 576 bool ignore_will_link; |
0 | 577 EXCEPTION_CONTEXT; |
1602 | 578 int index = pool_index; |
579 if (cache_index >= 0) { | |
580 assert(index < 0, "only one kind of index at a time"); | |
581 ConstantPoolCacheEntry* cpc_entry = cpool->cache()->entry_at(cache_index); | |
582 index = cpc_entry->constant_pool_index(); | |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
583 oop obj = cpc_entry->f1_as_instance(); |
1602 | 584 if (obj != NULL) { |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
585 assert(obj->is_instance() || obj->is_array(), "must be a Java reference"); |
1602 | 586 ciObject* ciobj = get_object(obj); |
587 return ciConstant(T_OBJECT, ciobj); | |
588 } | |
589 } | |
0 | 590 constantTag tag = cpool->tag_at(index); |
591 if (tag.is_int()) { | |
592 return ciConstant(T_INT, (jint)cpool->int_at(index)); | |
593 } else if (tag.is_long()) { | |
594 return ciConstant((jlong)cpool->long_at(index)); | |
595 } else if (tag.is_float()) { | |
596 return ciConstant((jfloat)cpool->float_at(index)); | |
597 } else if (tag.is_double()) { | |
598 return ciConstant((jdouble)cpool->double_at(index)); | |
599 } else if (tag.is_string() || tag.is_unresolved_string()) { | |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
600 oop string = NULL; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
601 if (cpool->is_pseudo_string_at(index)) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
602 string = cpool->pseudo_string_at(index); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
603 } else { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
604 string = cpool->string_at(index, THREAD); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
605 if (HAS_PENDING_EXCEPTION) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
606 CLEAR_PENDING_EXCEPTION; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
607 record_out_of_memory_failure(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
608 return ciConstant(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
0
diff
changeset
|
609 } |
0 | 610 } |
611 ciObject* constant = get_object(string); | |
612 assert (constant->is_instance(), "must be an instance, or not? "); | |
613 return ciConstant(T_OBJECT, constant); | |
614 } else if (tag.is_klass() || tag.is_unresolved_klass()) { | |
615 // 4881222: allow ldc to take a class type | |
1602 | 616 ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); |
0 | 617 if (HAS_PENDING_EXCEPTION) { |
618 CLEAR_PENDING_EXCEPTION; | |
619 record_out_of_memory_failure(); | |
620 return ciConstant(); | |
621 } | |
622 assert (klass->is_instance_klass() || klass->is_array_klass(), | |
623 "must be an instance or array klass "); | |
1602 | 624 return ciConstant(T_OBJECT, klass->java_mirror()); |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
625 } else if (tag.is_object()) { |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
626 oop obj = cpool->object_at(index); |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
627 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
|
628 ciObject* ciobj = get_object(obj); |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
629 return ciConstant(T_OBJECT, ciobj); |
1602 | 630 } else if (tag.is_method_type()) { |
631 // must execute Java code to link this CP entry into cache[i].f1 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
632 ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); |
1602 | 633 ciObject* ciobj = get_unloaded_method_type_constant(signature); |
634 return ciConstant(T_OBJECT, ciobj); | |
635 } else if (tag.is_method_handle()) { | |
636 // must execute Java code to link this CP entry into cache[i].f1 | |
637 int ref_kind = cpool->method_handle_ref_kind_at(index); | |
638 int callee_index = cpool->method_handle_klass_index_at(index); | |
639 ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
640 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
|
641 ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); |
1602 | 642 ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); |
643 return ciConstant(T_OBJECT, ciobj); | |
0 | 644 } else { |
645 ShouldNotReachHere(); | |
646 return ciConstant(); | |
647 } | |
648 } | |
649 | |
650 // ------------------------------------------------------------------ | |
651 // ciEnv::get_constant_by_index | |
652 // | |
653 // Pull a constant out of the constant pool. How appropriate. | |
654 // | |
655 // Implementation note: this query is currently in no way cached. | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
656 ciConstant ciEnv::get_constant_by_index(constantPoolHandle cpool, |
1602 | 657 int pool_index, int cache_index, |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
658 ciInstanceKlass* accessor) { |
1602 | 659 GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);) |
0 | 660 } |
661 | |
662 // ------------------------------------------------------------------ | |
663 // ciEnv::get_field_by_index_impl | |
664 // | |
665 // Implementation of get_field_by_index. | |
666 // | |
667 // Implementation note: the results of field lookups are cached | |
668 // in the accessor klass. | |
669 ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, | |
670 int index) { | |
671 ciConstantPoolCache* cache = accessor->field_cache(); | |
672 if (cache == NULL) { | |
673 ciField* field = new (arena()) ciField(accessor, index); | |
674 return field; | |
675 } else { | |
676 ciField* field = (ciField*)cache->get(index); | |
677 if (field == NULL) { | |
678 field = new (arena()) ciField(accessor, index); | |
679 cache->insert(index, field); | |
680 } | |
681 return field; | |
682 } | |
683 } | |
684 | |
685 // ------------------------------------------------------------------ | |
686 // ciEnv::get_field_by_index | |
687 // | |
688 // Get a field by index from a klass's constant pool. | |
689 ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, | |
690 int index) { | |
691 GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);) | |
692 } | |
693 | |
694 // ------------------------------------------------------------------ | |
695 // ciEnv::lookup_method | |
696 // | |
697 // Perform an appropriate method lookup based on accessor, holder, | |
698 // name, signature, and bytecode. | |
699 methodOop ciEnv::lookup_method(instanceKlass* accessor, | |
700 instanceKlass* holder, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
701 Symbol* name, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
702 Symbol* sig, |
0 | 703 Bytecodes::Code bc) { |
704 EXCEPTION_CONTEXT; | |
705 KlassHandle h_accessor(THREAD, accessor); | |
706 KlassHandle h_holder(THREAD, holder); | |
707 LinkResolver::check_klass_accessability(h_accessor, h_holder, KILL_COMPILE_ON_FATAL_(NULL)); | |
708 methodHandle dest_method; | |
709 switch (bc) { | |
710 case Bytecodes::_invokestatic: | |
711 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
712 LinkResolver::resolve_static_call_or_null(h_holder, name, sig, h_accessor); |
0 | 713 break; |
714 case Bytecodes::_invokespecial: | |
715 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
716 LinkResolver::resolve_special_call_or_null(h_holder, name, sig, h_accessor); |
0 | 717 break; |
718 case Bytecodes::_invokeinterface: | |
719 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
720 LinkResolver::linktime_resolve_interface_method_or_null(h_holder, name, sig, |
0 | 721 h_accessor, true); |
722 break; | |
723 case Bytecodes::_invokevirtual: | |
724 dest_method = | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
725 LinkResolver::linktime_resolve_virtual_method_or_null(h_holder, name, sig, |
0 | 726 h_accessor, true); |
727 break; | |
728 default: ShouldNotReachHere(); | |
729 } | |
730 | |
731 return dest_method(); | |
732 } | |
733 | |
734 | |
735 // ------------------------------------------------------------------ | |
736 // ciEnv::get_method_by_index_impl | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
737 ciMethod* ciEnv::get_method_by_index_impl(constantPoolHandle cpool, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
738 int index, Bytecodes::Code bc, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
739 ciInstanceKlass* accessor) { |
0 | 740 int holder_index = cpool->klass_ref_index_at(index); |
741 bool holder_is_accessible; | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
742 ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
0 | 743 ciInstanceKlass* declared_holder = get_instance_klass_for_declared_method_holder(holder); |
744 | |
745 // Get the method's name and signature. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
746 Symbol* name_sym = cpool->name_ref_at(index); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2147
diff
changeset
|
747 Symbol* sig_sym = cpool->signature_ref_at(index); |
0 | 748 |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
749 if (cpool->has_preresolution() |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
750 || (holder == ciEnv::MethodHandle_klass() && |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
751 MethodHandles::is_signature_polymorphic_name(holder->get_klassOop(), name_sym))) { |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
752 // Short-circuit lookups for JSR 292-related call sites. |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
753 // That is, do not rely only on name-based lookups, because they may fail |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
754 // if the names are not resolvable in the boot class loader (7056328). |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
755 switch (bc) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
756 case Bytecodes::_invokevirtual: |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
757 case Bytecodes::_invokeinterface: |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
758 case Bytecodes::_invokespecial: |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
759 case Bytecodes::_invokestatic: |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
760 { |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
761 oop appendix_oop = NULL; |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
762 methodOop m = constantPoolOopDesc::method_at_if_loaded(cpool, index); |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
763 if (m != NULL) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
764 return get_object(m)->as_method(); |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
765 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
766 } |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
767 break; |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
768 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
769 } |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
770 |
0 | 771 if (holder_is_accessible) { // Our declared holder is loaded. |
772 instanceKlass* lookup = declared_holder->get_instanceKlass(); | |
773 methodOop m = lookup_method(accessor->get_instanceKlass(), lookup, name_sym, sig_sym, bc); | |
3461
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
774 if (m != NULL && |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
775 (bc == Bytecodes::_invokestatic |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
776 ? instanceKlass::cast(m->method_holder())->is_not_initialized() |
81d815b05abb
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_loaded())) { |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
778 m = NULL; |
81d815b05abb
7056328: JSR 292 invocation sometimes fails in adapters for types not on boot class path
jrose
parents:
3279
diff
changeset
|
779 } |
0 | 780 if (m != NULL) { |
781 // We found the method. | |
782 return get_object(m)->as_method(); | |
783 } | |
784 } | |
785 | |
786 // Either the declared holder was not loaded, or the method could | |
787 // not be found. Create a dummy ciMethod to represent the failed | |
788 // 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
|
789 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
|
790 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
|
791 return get_unloaded_method(declared_holder, name, signature, accessor); |
0 | 792 } |
793 | |
794 | |
795 // ------------------------------------------------------------------ | |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
796 // ciEnv::get_fake_invokedynamic_method_impl |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
797 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
|
798 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
|
799 ciInstanceKlass* accessor) { |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1397
diff
changeset
|
800 // Compare the following logic with InterpreterRuntime::resolve_invokedynamic. |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
801 assert(bc == Bytecodes::_invokedynamic, "must be invokedynamic"); |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
802 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
803 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
|
804 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
|
805 // 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
|
806 // 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
|
807 // 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
|
808 // 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
|
809 // 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
|
810 // 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
|
811 // 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
|
812 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
813 // 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
|
814 // Stop the code path here with an unlinked method. |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1397
diff
changeset
|
815 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
|
816 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
|
817 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
|
818 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
|
819 return get_unloaded_method(holder, name, signature, accessor); |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
820 } |
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
821 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
4001
diff
changeset
|
822 // 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
|
823 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
|
824 return get_object(adapter)->as_method(); |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
825 } |
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 // ------------------------------------------------------------------ |
0 | 829 // ciEnv::get_instance_klass_for_declared_method_holder |
830 ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { | |
831 // For the case of <array>.clone(), the method holder can be a ciArrayKlass | |
832 // instead of a ciInstanceKlass. For that case simply pretend that the | |
833 // declared holder is Object.clone since that's where the call will bottom out. | |
834 // A more correct fix would trickle out through many interfaces in CI, | |
835 // requiring ciInstanceKlass* to become ciKlass* and many more places would | |
836 // require checks to make sure the expected type was found. Given that this | |
837 // only occurs for clone() the more extensive fix seems like overkill so | |
838 // instead we simply smear the array type into Object. | |
839 if (method_holder->is_instance_klass()) { | |
840 return method_holder->as_instance_klass(); | |
841 } else if (method_holder->is_array_klass()) { | |
842 return current()->Object_klass(); | |
843 } else { | |
844 ShouldNotReachHere(); | |
845 } | |
846 return NULL; | |
847 } | |
848 | |
849 | |
850 // ------------------------------------------------------------------ | |
851 // ciEnv::get_method_by_index | |
1138
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
852 ciMethod* ciEnv::get_method_by_index(constantPoolHandle cpool, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
853 int index, Bytecodes::Code bc, |
dd57230ba8fe
6893268: additional dynamic language related optimizations in C2
twisti
parents:
1137
diff
changeset
|
854 ciInstanceKlass* accessor) { |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
855 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
|
856 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
|
857 } 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
|
858 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
|
859 } |
0 | 860 } |
861 | |
1137
97125851f396
6829187: compiler optimizations required for JSR 292
twisti
parents:
1080
diff
changeset
|
862 |
0 | 863 // ------------------------------------------------------------------ |
864 // ciEnv::name_buffer | |
865 char *ciEnv::name_buffer(int req_len) { | |
866 if (_name_buffer_len < req_len) { | |
867 if (_name_buffer == NULL) { | |
868 _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); | |
869 _name_buffer_len = req_len; | |
870 } else { | |
871 _name_buffer = | |
872 (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); | |
873 _name_buffer_len = req_len; | |
874 } | |
875 } | |
876 return _name_buffer; | |
877 } | |
878 | |
879 // ------------------------------------------------------------------ | |
880 // ciEnv::is_in_vm | |
881 bool ciEnv::is_in_vm() { | |
882 return JavaThread::current()->thread_state() == _thread_in_vm; | |
883 } | |
884 | |
885 bool ciEnv::system_dictionary_modification_counter_changed() { | |
886 return _system_dictionary_modification_counter != SystemDictionary::number_of_modifications(); | |
887 } | |
888 | |
889 // ------------------------------------------------------------------ | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
890 // ciEnv::validate_compile_task_dependencies |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
891 // |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
892 // 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:
3461
diff
changeset
|
893 // breakpoints, call site invalidation). |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
894 void ciEnv::validate_compile_task_dependencies(ciMethod* target) { |
0 | 895 if (failing()) return; // no need for further checks |
896 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
897 // 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:
3461
diff
changeset
|
898 // not check klass dependencies if the system dictionary |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
899 // modification counter hasn't changed (see below). |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
900 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
901 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:
3461
diff
changeset
|
902 klassOop witness = deps.check_dependency(); |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
903 if (witness != NULL) { |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
904 record_failure("invalid non-klass dependency"); |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
905 return; |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
906 } |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
907 } |
0 | 908 |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
909 // 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:
3461
diff
changeset
|
910 // 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:
3461
diff
changeset
|
911 // 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:
3461
diff
changeset
|
912 // 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:
3461
diff
changeset
|
913 // dependencies were inserted. Any violated dependences in this |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
914 // case are dumped to the tty. |
0 | 915 bool counter_changed = system_dictionary_modification_counter_changed(); |
916 | |
3959 | 917 bool verify_deps = trueInDebug; |
918 if (!counter_changed && !verify_deps) return; | |
919 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
920 int klass_violations = 0; |
0 | 921 for (Dependencies::DepStream deps(dependencies()); deps.next(); ) { |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
922 if (!deps.is_klass_type()) continue; // skip non-klass dependencies |
0 | 923 klassOop witness = deps.check_dependency(); |
924 if (witness != NULL) { | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
925 klass_violations++; |
3959 | 926 if (!counter_changed) { |
927 // Dependence failed but counter didn't change. Log a message | |
928 // describing what failed and allow the assert at the end to | |
929 // trigger. | |
930 deps.print_dependency(witness); | |
931 } else if (xtty == NULL) { | |
932 // If we're not logging then a single violation is sufficient, | |
933 // otherwise we want to log all the dependences which were | |
934 // violated. | |
935 break; | |
936 } | |
0 | 937 } |
938 } | |
939 | |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
940 if (klass_violations != 0) { |
3959 | 941 #ifdef ASSERT |
942 if (!counter_changed && !PrintCompilation) { | |
943 // Print out the compile task that failed | |
944 _task->print_line(); | |
945 } | |
946 #endif | |
0 | 947 assert(counter_changed, "failed dependencies, but counter didn't change"); |
948 record_failure("concurrent class loading"); | |
949 } | |
950 } | |
951 | |
952 // ------------------------------------------------------------------ | |
953 // ciEnv::register_method | |
4138
82af018d61db
Merge fixes.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4137
diff
changeset
|
954 nmethod* ciEnv::register_method(ciMethod* target, |
0 | 955 int entry_bci, |
956 CodeOffsets* offsets, | |
957 int orig_pc_offset, | |
958 CodeBuffer* code_buffer, | |
959 int frame_words, | |
960 OopMapSet* oop_map_set, | |
961 ExceptionHandlerTable* handler_table, | |
962 ImplicitExceptionTable* inc_table, | |
963 AbstractCompiler* compiler, | |
964 int comp_level, | |
965 bool has_unsafe_access) { | |
966 VM_ENTRY_MARK; | |
967 nmethod* nm = NULL; | |
968 { | |
969 // To prevent compile queue updates. | |
970 MutexLocker locker(MethodCompileQueue_lock, THREAD); | |
971 | |
972 // Prevent SystemDictionary::add_to_hierarchy from running | |
973 // and invalidating our dependencies until we install this method. | |
974 MutexLocker ml(Compile_lock); | |
975 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
976 // 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
|
977 if (!failing() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
978 ( (!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
|
979 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
|
980 (!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
|
981 JvmtiExport::can_access_local_variables()) || |
1213
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1142
diff
changeset
|
982 (!jvmti_can_post_on_exceptions() && |
6deeaebad47a
6902182: 4/4 Starting with jdwp agent should not incur performance penalty
dcubed
parents:
1142
diff
changeset
|
983 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
|
984 record_failure("Jvmti state change invalidated dependencies"); |
0 | 985 } |
986 | |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
987 // 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
|
988 if (!failing() && |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
989 ( (!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
|
990 (!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
|
991 (!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
|
992 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
|
993 } |
0 | 994 |
780
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
995 if (!failing()) { |
c96bf21b756f
6788527: Server vm intermittently fails with assertion "live value must not be garbage" with fastdebug bits
kvn
parents:
470
diff
changeset
|
996 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
|
997 // 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
|
998 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
|
999 } |
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 // 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
|
1002 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
|
1003 |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
1004 // Check for {class loads, evolution, breakpoints, ...} during compilation |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3461
diff
changeset
|
1005 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
|
1006 } |
0 | 1007 |
1008 methodHandle method(THREAD, target->get_methodOop()); | |
1009 | |
1010 if (failing()) { | |
1011 // While not a true deoptimization, it is a preemptive decompile. | |
1012 methodDataOop mdo = method()->method_data(); | |
1013 if (mdo != NULL) { | |
1014 mdo->inc_decompile_count(); | |
1015 } | |
1016 | |
1017 // All buffers in the CodeBuffer are allocated in the CodeCache. | |
1018 // If the code buffer is created on each compile attempt | |
1019 // as in C2, then it must be freed. | |
1020 code_buffer->free_blob(); | |
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1021 return NULL; |
0 | 1022 } |
1023 | |
1024 assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry"); | |
1025 assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry"); | |
1026 | |
1027 nm = nmethod::new_nmethod(method, | |
1028 compile_id(), | |
1029 entry_bci, | |
1030 offsets, | |
1031 orig_pc_offset, | |
1032 debug_info(), dependencies(), code_buffer, | |
1033 frame_words, oop_map_set, | |
1034 handler_table, inc_table, | |
1035 compiler, comp_level); | |
1036 | |
1037 // Free codeBlobs | |
1038 code_buffer->free_blob(); | |
1039 | |
1040 // stress test 6243940 by immediately making the method | |
1041 // non-entrant behind the system's back. This has serious | |
1042 // side effects on the code cache and is not meant for | |
1043 // general stress testing | |
1044 if (nm != NULL && StressNonEntrant) { | |
1045 MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag); | |
1046 NativeJump::patch_verified_entry(nm->entry_point(), nm->verified_entry_point(), | |
1047 SharedRuntime::get_handle_wrong_method_stub()); | |
1048 } | |
1049 | |
1050 if (nm == NULL) { | |
1051 // The CodeCache is full. Print out warning and disable compilation. | |
1052 record_failure("code cache is full"); | |
1202 | 1053 { |
1054 MutexUnlocker ml(Compile_lock); | |
1055 MutexUnlocker locker(MethodCompileQueue_lock); | |
1056 CompileBroker::handle_full_code_cache(); | |
0 | 1057 } |
1058 } else { | |
1059 nm->set_has_unsafe_access(has_unsafe_access); | |
1060 | |
1061 // Record successful registration. | |
1062 // (Put nm into the task handle *before* publishing to the Java heap.) | |
1063 if (task() != NULL) task()->set_code(nm); | |
1064 | |
1065 if (entry_bci == InvocationEntryBci) { | |
1783 | 1066 if (TieredCompilation) { |
1067 // If there is an old version we're done with it | |
1068 nmethod* old = method->code(); | |
1069 if (TraceMethodReplacement && old != NULL) { | |
1070 ResourceMark rm; | |
1071 char *method_name = method->name_and_sig_as_C_string(); | |
1072 tty->print_cr("Replacing method %s", method_name); | |
1073 } | |
1074 if (old != NULL ) { | |
1075 old->make_not_entrant(); | |
1076 } | |
0 | 1077 } |
1078 if (TraceNMethodInstalls ) { | |
1079 ResourceMark rm; | |
1080 char *method_name = method->name_and_sig_as_C_string(); | |
1081 ttyLocker ttyl; | |
1082 tty->print_cr("Installing method (%d) %s ", | |
1083 comp_level, | |
1084 method_name); | |
1085 } | |
1086 // Allow the code to be executed | |
1087 method->set_code(method, nm); | |
1088 } else { | |
1089 if (TraceNMethodInstalls ) { | |
1090 ResourceMark rm; | |
1091 char *method_name = method->name_and_sig_as_C_string(); | |
1092 ttyLocker ttyl; | |
1093 tty->print_cr("Installing osr method (%d) %s @ %d", | |
1094 comp_level, | |
1095 method_name, | |
1096 entry_bci); | |
1097 } | |
1098 instanceKlass::cast(method->method_holder())->add_osr_nmethod(nm); | |
1099 | |
1100 } | |
1101 } | |
1102 } | |
1103 // JVMTI -- compiled method notification (must be done outside lock) | |
1104 if (nm != NULL) { | |
1105 nm->post_compiled_method_load_event(); | |
1106 } | |
1107 | |
3619
5e9645341ec3
support for new RiRuntime features: add code without making it the default for the method, executing Java tasks on the compile thread, communicate nmethod reference to Java code as HotSpotCompiledMethod
Lukas Stadler <lukas.stadler@jku.at>
parents:
3555
diff
changeset
|
1108 return nm; |
0 | 1109 } |
1110 | |
1111 | |
1112 // ------------------------------------------------------------------ | |
1113 // ciEnv::find_system_klass | |
1114 ciKlass* ciEnv::find_system_klass(ciSymbol* klass_name) { | |
1115 VM_ENTRY_MARK; | |
3461
81d815b05abb
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 } |