File: | jdk/src/hotspot/share/ci/ciEnv.cpp |
Warning: | line 511, column 5 Value stored to 'fail_type' is never read |
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1 | /* |
2 | * Copyright (c) 1999, 2021, Oracle and/or its affiliates. All rights reserved. |
3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 | * |
5 | * This code is free software; you can redistribute it and/or modify it |
6 | * under the terms of the GNU General Public License version 2 only, as |
7 | * published by the Free Software Foundation. |
8 | * |
9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
12 | * version 2 for more details (a copy is included in the LICENSE file that |
13 | * accompanied this code). |
14 | * |
15 | * You should have received a copy of the GNU General Public License version |
16 | * 2 along with this work; if not, write to the Free Software Foundation, |
17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
18 | * |
19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
20 | * or visit www.oracle.com if you need additional information or have any |
21 | * questions. |
22 | * |
23 | */ |
24 | |
25 | #include "precompiled.hpp" |
26 | #include "jvm.h" |
27 | #include "ci/ciConstant.hpp" |
28 | #include "ci/ciEnv.hpp" |
29 | #include "ci/ciField.hpp" |
30 | #include "ci/ciInstance.hpp" |
31 | #include "ci/ciInstanceKlass.hpp" |
32 | #include "ci/ciMethod.hpp" |
33 | #include "ci/ciNullObject.hpp" |
34 | #include "ci/ciReplay.hpp" |
35 | #include "ci/ciSymbols.hpp" |
36 | #include "ci/ciUtilities.inline.hpp" |
37 | #include "classfile/javaClasses.hpp" |
38 | #include "classfile/javaClasses.inline.hpp" |
39 | #include "classfile/symbolTable.hpp" |
40 | #include "classfile/systemDictionary.hpp" |
41 | #include "classfile/vmClasses.hpp" |
42 | #include "classfile/vmSymbols.hpp" |
43 | #include "code/codeCache.hpp" |
44 | #include "code/scopeDesc.hpp" |
45 | #include "compiler/compilationPolicy.hpp" |
46 | #include "compiler/compileBroker.hpp" |
47 | #include "compiler/compilerEvent.hpp" |
48 | #include "compiler/compileLog.hpp" |
49 | #include "compiler/compileTask.hpp" |
50 | #include "compiler/disassembler.hpp" |
51 | #include "gc/shared/collectedHeap.inline.hpp" |
52 | #include "interpreter/bytecodeStream.hpp" |
53 | #include "interpreter/linkResolver.hpp" |
54 | #include "jfr/jfrEvents.hpp" |
55 | #include "logging/log.hpp" |
56 | #include "memory/allocation.inline.hpp" |
57 | #include "memory/oopFactory.hpp" |
58 | #include "memory/resourceArea.hpp" |
59 | #include "memory/universe.hpp" |
60 | #include "oops/constantPool.inline.hpp" |
61 | #include "oops/cpCache.inline.hpp" |
62 | #include "oops/method.inline.hpp" |
63 | #include "oops/methodData.hpp" |
64 | #include "oops/objArrayKlass.hpp" |
65 | #include "oops/objArrayOop.inline.hpp" |
66 | #include "oops/oop.inline.hpp" |
67 | #include "prims/jvmtiExport.hpp" |
68 | #include "prims/methodHandles.hpp" |
69 | #include "runtime/fieldDescriptor.inline.hpp" |
70 | #include "runtime/handles.inline.hpp" |
71 | #include "runtime/init.hpp" |
72 | #include "runtime/reflection.hpp" |
73 | #include "runtime/jniHandles.inline.hpp" |
74 | #include "runtime/safepointVerifiers.hpp" |
75 | #include "runtime/sharedRuntime.hpp" |
76 | #include "runtime/thread.inline.hpp" |
77 | #include "utilities/dtrace.hpp" |
78 | #include "utilities/macros.hpp" |
79 | #ifdef COMPILER11 |
80 | #include "c1/c1_Runtime1.hpp" |
81 | #endif |
82 | #ifdef COMPILER21 |
83 | #include "opto/runtime.hpp" |
84 | #endif |
85 | |
86 | // ciEnv |
87 | // |
88 | // This class is the top level broker for requests from the compiler |
89 | // to the VM. |
90 | |
91 | ciObject* ciEnv::_null_object_instance; |
92 | |
93 | #define VM_CLASS_DEFN(name, ignore_s) ciInstanceKlass* ciEnv::_##name = NULL__null; |
94 | VM_CLASSES_DO(VM_CLASS_DEFN)VM_CLASS_DEFN(Object_klass, java_lang_Object ) VM_CLASS_DEFN( String_klass, java_lang_String ) VM_CLASS_DEFN(Class_klass, java_lang_Class ) VM_CLASS_DEFN(Cloneable_klass, java_lang_Cloneable ) VM_CLASS_DEFN (ClassLoader_klass, java_lang_ClassLoader ) VM_CLASS_DEFN(Serializable_klass , java_io_Serializable ) VM_CLASS_DEFN(System_klass, java_lang_System ) VM_CLASS_DEFN(Throwable_klass, java_lang_Throwable ) VM_CLASS_DEFN (Error_klass, java_lang_Error ) VM_CLASS_DEFN(ThreadDeath_klass , java_lang_ThreadDeath ) VM_CLASS_DEFN(Exception_klass, java_lang_Exception ) VM_CLASS_DEFN(RuntimeException_klass, java_lang_RuntimeException ) VM_CLASS_DEFN(SecurityManager_klass, java_lang_SecurityManager ) VM_CLASS_DEFN(ProtectionDomain_klass, java_security_ProtectionDomain ) VM_CLASS_DEFN(AccessControlContext_klass, java_security_AccessControlContext ) VM_CLASS_DEFN(AccessController_klass, java_security_AccessController ) VM_CLASS_DEFN(SecureClassLoader_klass, java_security_SecureClassLoader ) VM_CLASS_DEFN(ClassNotFoundException_klass, java_lang_ClassNotFoundException ) VM_CLASS_DEFN(Record_klass, java_lang_Record ) VM_CLASS_DEFN (NoClassDefFoundError_klass, java_lang_NoClassDefFoundError ) VM_CLASS_DEFN(LinkageError_klass, java_lang_LinkageError ) VM_CLASS_DEFN (ClassCastException_klass, java_lang_ClassCastException ) VM_CLASS_DEFN (ArrayStoreException_klass, java_lang_ArrayStoreException ) VM_CLASS_DEFN (VirtualMachineError_klass, java_lang_VirtualMachineError ) VM_CLASS_DEFN (InternalError_klass, java_lang_InternalError ) VM_CLASS_DEFN (OutOfMemoryError_klass, java_lang_OutOfMemoryError ) VM_CLASS_DEFN (StackOverflowError_klass, java_lang_StackOverflowError ) VM_CLASS_DEFN (IllegalMonitorStateException_klass, java_lang_IllegalMonitorStateException ) VM_CLASS_DEFN(Reference_klass, java_lang_ref_Reference ) VM_CLASS_DEFN (SoftReference_klass, java_lang_ref_SoftReference ) VM_CLASS_DEFN (WeakReference_klass, java_lang_ref_WeakReference ) VM_CLASS_DEFN (FinalReference_klass, java_lang_ref_FinalReference ) VM_CLASS_DEFN (PhantomReference_klass, java_lang_ref_PhantomReference ) VM_CLASS_DEFN (Finalizer_klass, java_lang_ref_Finalizer ) VM_CLASS_DEFN(Thread_klass , java_lang_Thread ) VM_CLASS_DEFN(ThreadGroup_klass, java_lang_ThreadGroup ) VM_CLASS_DEFN(Properties_klass, java_util_Properties ) VM_CLASS_DEFN (Module_klass, java_lang_Module ) VM_CLASS_DEFN(reflect_AccessibleObject_klass , java_lang_reflect_AccessibleObject ) VM_CLASS_DEFN(reflect_Field_klass , java_lang_reflect_Field ) VM_CLASS_DEFN(reflect_Parameter_klass , java_lang_reflect_Parameter ) VM_CLASS_DEFN(reflect_Method_klass , java_lang_reflect_Method ) VM_CLASS_DEFN(reflect_Constructor_klass , java_lang_reflect_Constructor ) VM_CLASS_DEFN(reflect_MagicAccessorImpl_klass , reflect_MagicAccessorImpl ) VM_CLASS_DEFN(reflect_MethodAccessorImpl_klass , reflect_MethodAccessorImpl ) VM_CLASS_DEFN(reflect_ConstructorAccessorImpl_klass , reflect_ConstructorAccessorImpl ) VM_CLASS_DEFN(reflect_DelegatingClassLoader_klass , reflect_DelegatingClassLoader ) VM_CLASS_DEFN(reflect_ConstantPool_klass , reflect_ConstantPool ) VM_CLASS_DEFN(reflect_UnsafeStaticFieldAccessorImpl_klass , reflect_UnsafeStaticFieldAccessorImpl ) VM_CLASS_DEFN(reflect_CallerSensitive_klass , reflect_CallerSensitive ) VM_CLASS_DEFN(reflect_NativeConstructorAccessorImpl_klass , reflect_NativeConstructorAccessorImpl ) VM_CLASS_DEFN(DirectMethodHandle_klass , java_lang_invoke_DirectMethodHandle ) VM_CLASS_DEFN(MethodHandle_klass , java_lang_invoke_MethodHandle ) VM_CLASS_DEFN(VarHandle_klass , java_lang_invoke_VarHandle ) VM_CLASS_DEFN(MemberName_klass , java_lang_invoke_MemberName ) VM_CLASS_DEFN(ResolvedMethodName_klass , java_lang_invoke_ResolvedMethodName ) VM_CLASS_DEFN(MethodHandleNatives_klass , java_lang_invoke_MethodHandleNatives ) VM_CLASS_DEFN(LambdaForm_klass , java_lang_invoke_LambdaForm ) VM_CLASS_DEFN(MethodType_klass , java_lang_invoke_MethodType ) VM_CLASS_DEFN(BootstrapMethodError_klass , java_lang_BootstrapMethodError ) VM_CLASS_DEFN(CallSite_klass , java_lang_invoke_CallSite ) VM_CLASS_DEFN(NativeEntryPoint_klass , jdk_internal_invoke_NativeEntryPoint ) VM_CLASS_DEFN(Context_klass , java_lang_invoke_MethodHandleNatives_CallSiteContext ) VM_CLASS_DEFN (ConstantCallSite_klass, java_lang_invoke_ConstantCallSite ) VM_CLASS_DEFN (MutableCallSite_klass, java_lang_invoke_MutableCallSite ) VM_CLASS_DEFN (VolatileCallSite_klass, java_lang_invoke_VolatileCallSite ) VM_CLASS_DEFN (AssertionStatusDirectives_klass, java_lang_AssertionStatusDirectives ) VM_CLASS_DEFN(StringBuffer_klass, java_lang_StringBuffer ) VM_CLASS_DEFN(StringBuilder_klass, java_lang_StringBuilder ) VM_CLASS_DEFN(UnsafeConstants_klass, jdk_internal_misc_UnsafeConstants ) VM_CLASS_DEFN(internal_Unsafe_klass, jdk_internal_misc_Unsafe ) VM_CLASS_DEFN(module_Modules_klass, jdk_internal_module_Modules ) VM_CLASS_DEFN(ByteArrayInputStream_klass, java_io_ByteArrayInputStream ) VM_CLASS_DEFN(URL_klass, java_net_URL ) VM_CLASS_DEFN(URLClassLoader_klass , java_net_URLClassLoader ) VM_CLASS_DEFN(Jar_Manifest_klass, java_util_jar_Manifest ) VM_CLASS_DEFN(jdk_internal_loader_BuiltinClassLoader_klass ,jdk_internal_loader_BuiltinClassLoader ) VM_CLASS_DEFN(jdk_internal_loader_ClassLoaders_klass , jdk_internal_loader_ClassLoaders ) VM_CLASS_DEFN(jdk_internal_loader_ClassLoaders_AppClassLoader_klass , jdk_internal_loader_ClassLoaders_AppClassLoader) VM_CLASS_DEFN (jdk_internal_loader_ClassLoaders_PlatformClassLoader_klass, jdk_internal_loader_ClassLoaders_PlatformClassLoader ) VM_CLASS_DEFN(CodeSource_klass, java_security_CodeSource ) VM_CLASS_DEFN (ConcurrentHashMap_klass, java_util_concurrent_ConcurrentHashMap ) VM_CLASS_DEFN(ArrayList_klass, java_util_ArrayList ) VM_CLASS_DEFN (StackTraceElement_klass, java_lang_StackTraceElement ) VM_CLASS_DEFN (nio_Buffer_klass, java_nio_Buffer ) VM_CLASS_DEFN(StackWalker_klass , java_lang_StackWalker ) VM_CLASS_DEFN(AbstractStackWalker_klass , java_lang_StackStreamFactory_AbstractStackWalker ) VM_CLASS_DEFN (StackFrameInfo_klass, java_lang_StackFrameInfo ) VM_CLASS_DEFN (LiveStackFrameInfo_klass, java_lang_LiveStackFrameInfo ) VM_CLASS_DEFN (java_util_concurrent_locks_AbstractOwnableSynchronizer_klass , java_util_concurrent_locks_AbstractOwnableSynchronizer) VM_CLASS_DEFN (Boolean_klass, java_lang_Boolean ) VM_CLASS_DEFN(Character_klass , java_lang_Character ) VM_CLASS_DEFN(Float_klass, java_lang_Float ) VM_CLASS_DEFN(Double_klass, java_lang_Double ) VM_CLASS_DEFN (Byte_klass, java_lang_Byte ) VM_CLASS_DEFN(Short_klass, java_lang_Short ) VM_CLASS_DEFN(Integer_klass, java_lang_Integer ) VM_CLASS_DEFN (Long_klass, java_lang_Long ) VM_CLASS_DEFN(Iterator_klass, java_util_Iterator ) VM_CLASS_DEFN(RecordComponent_klass, java_lang_reflect_RecordComponent ) VM_CLASS_DEFN(vector_VectorSupport_klass, jdk_internal_vm_vector_VectorSupport ) VM_CLASS_DEFN(vector_VectorPayload_klass, jdk_internal_vm_vector_VectorPayload ) VM_CLASS_DEFN(vector_Vector_klass, jdk_internal_vm_vector_Vector ) VM_CLASS_DEFN(vector_VectorMask_klass, jdk_internal_vm_vector_VectorMask ) VM_CLASS_DEFN(vector_VectorShuffle_klass, jdk_internal_vm_vector_VectorShuffle ) |
95 | #undef VM_CLASS_DEFN |
96 | |
97 | ciSymbol* ciEnv::_unloaded_cisymbol = NULL__null; |
98 | ciInstanceKlass* ciEnv::_unloaded_ciinstance_klass = NULL__null; |
99 | ciObjArrayKlass* ciEnv::_unloaded_ciobjarrayklass = NULL__null; |
100 | |
101 | jobject ciEnv::_ArrayIndexOutOfBoundsException_handle = NULL__null; |
102 | jobject ciEnv::_ArrayStoreException_handle = NULL__null; |
103 | jobject ciEnv::_ClassCastException_handle = NULL__null; |
104 | |
105 | #ifndef PRODUCT |
106 | static bool firstEnv = true; |
107 | #endif /* PRODUCT */ |
108 | |
109 | // ------------------------------------------------------------------ |
110 | // ciEnv::ciEnv |
111 | ciEnv::ciEnv(CompileTask* task) |
112 | : _ciEnv_arena(mtCompiler) { |
113 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
114 | |
115 | // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. |
116 | thread->set_env(this); |
117 | assert(ciEnv::current() == this, "sanity")do { if (!(ciEnv::current() == this)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 117, "assert(" "ciEnv::current() == this" ") failed", "sanity" ); ::breakpoint(); } } while (0); |
118 | |
119 | _oop_recorder = NULL__null; |
120 | _debug_info = NULL__null; |
121 | _dependencies = NULL__null; |
122 | _failure_reason = NULL__null; |
123 | _inc_decompile_count_on_failure = true; |
124 | _compilable = MethodCompilable; |
125 | _break_at_compile = false; |
126 | _compiler_data = NULL__null; |
127 | #ifndef PRODUCT |
128 | assert(!firstEnv, "not initialized properly")do { if (!(!firstEnv)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 128, "assert(" "!firstEnv" ") failed", "not initialized properly" ); ::breakpoint(); } } while (0); |
129 | #endif /* !PRODUCT */ |
130 | |
131 | _num_inlined_bytecodes = 0; |
132 | assert(task == NULL || thread->task() == task, "sanity")do { if (!(task == __null || thread->task() == task)) { (* g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 132, "assert(" "task == __null || thread->task() == task" ") failed", "sanity"); ::breakpoint(); } } while (0); |
133 | if (task != NULL__null) { |
134 | task->mark_started(os::elapsed_counter()); |
135 | } |
136 | _task = task; |
137 | _log = NULL__null; |
138 | |
139 | // Temporary buffer for creating symbols and such. |
140 | _name_buffer = NULL__null; |
141 | _name_buffer_len = 0; |
142 | |
143 | _arena = &_ciEnv_arena; |
144 | _factory = new (_arena) ciObjectFactory(_arena, 128); |
145 | |
146 | // Preload commonly referenced system ciObjects. |
147 | |
148 | // During VM initialization, these instances have not yet been created. |
149 | // Assertions ensure that these instances are not accessed before |
150 | // their initialization. |
151 | |
152 | assert(Universe::is_fully_initialized(), "should be complete")do { if (!(Universe::is_fully_initialized())) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 152, "assert(" "Universe::is_fully_initialized()" ") failed" , "should be complete"); ::breakpoint(); } } while (0); |
153 | |
154 | oop o = Universe::null_ptr_exception_instance(); |
155 | assert(o != NULL, "should have been initialized")do { if (!(o != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 155, "assert(" "o != __null" ") failed", "should have been initialized" ); ::breakpoint(); } } while (0); |
156 | _NullPointerException_instance = get_object(o)->as_instance(); |
157 | o = Universe::arithmetic_exception_instance(); |
158 | assert(o != NULL, "should have been initialized")do { if (!(o != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 158, "assert(" "o != __null" ") failed", "should have been initialized" ); ::breakpoint(); } } while (0); |
159 | _ArithmeticException_instance = get_object(o)->as_instance(); |
160 | |
161 | _ArrayIndexOutOfBoundsException_instance = NULL__null; |
162 | _ArrayStoreException_instance = NULL__null; |
163 | _ClassCastException_instance = NULL__null; |
164 | _the_null_string = NULL__null; |
165 | _the_min_jint_string = NULL__null; |
166 | |
167 | _jvmti_redefinition_count = 0; |
168 | _jvmti_can_hotswap_or_post_breakpoint = false; |
169 | _jvmti_can_access_local_variables = false; |
170 | _jvmti_can_post_on_exceptions = false; |
171 | _jvmti_can_pop_frame = false; |
172 | |
173 | _dyno_klasses = NULL__null; |
174 | _dyno_locs = NULL__null; |
175 | _dyno_name[0] = '\0'; |
176 | } |
177 | |
178 | // Record components of a location descriptor string. Components are appended by the constructor and |
179 | // removed by the destructor, like a stack, so scope matters. These location descriptors are used to |
180 | // locate dynamic classes, and terminate at a Method* or oop field associated with dynamic/hidden class. |
181 | // |
182 | // Example use: |
183 | // |
184 | // { |
185 | // RecordLocation fp(this, "field1"); |
186 | // // location: "field1" |
187 | // { RecordLocation fp(this, " field2"); // location: "field1 field2" } |
188 | // // location: "field1" |
189 | // { RecordLocation fp(this, " field3"); // location: "field1 field3" } |
190 | // // location: "field1" |
191 | // } |
192 | // // location: "" |
193 | // |
194 | // Examples of actual locations |
195 | // @bci compiler/ciReplay/CiReplayBase$TestMain test (I)V 1 <appendix> argL0 ; |
196 | // // resolve invokedynamic at bci 1 of TestMain.test, then read field "argL0" from appendix |
197 | // @bci compiler/ciReplay/CiReplayBase$TestMain main ([Ljava/lang/String;)V 0 <appendix> form vmentry <vmtarget> ; |
198 | // // resolve invokedynamic at bci 0 of TestMain.main, then read field "form.vmentry.method.vmtarget" from appendix |
199 | // @cpi compiler/ciReplay/CiReplayBase$TestMain 56 form vmentry <vmtarget> ; |
200 | // // resolve MethodHandle at cpi 56 of TestMain, then read field "vmentry.method.vmtarget" from resolved MethodHandle |
201 | class RecordLocation { |
202 | private: |
203 | char* end; |
204 | |
205 | ATTRIBUTE_PRINTF(3, 4)__attribute__((format(printf, 3, 4))) |
206 | void push(ciEnv* ci, const char* fmt, ...) { |
207 | va_list args; |
208 | va_start(args, fmt)__builtin_va_start(args, fmt); |
209 | push_va(ci, fmt, args); |
210 | va_end(args)__builtin_va_end(args); |
211 | } |
212 | |
213 | public: |
214 | ATTRIBUTE_PRINTF(3, 0)__attribute__((format(printf, 3, 0))) |
215 | void push_va(ciEnv* ci, const char* fmt, va_list args) { |
216 | char *e = ci->_dyno_name + strlen(ci->_dyno_name); |
217 | char *m = ci->_dyno_name + ARRAY_SIZE(ci->_dyno_name)sizeof(array_size_impl(ci->_dyno_name)) - 1; |
218 | os::vsnprintf(e, m - e, fmt, args); |
219 | assert(strlen(ci->_dyno_name) < (ARRAY_SIZE(ci->_dyno_name) - 1), "overflow")do { if (!(strlen(ci->_dyno_name) < (sizeof(array_size_impl (ci->_dyno_name)) - 1))) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 219, "assert(" "strlen(ci->_dyno_name) < (sizeof(array_size_impl(ci->_dyno_name)) - 1)" ") failed", "overflow"); ::breakpoint(); } } while (0); |
220 | } |
221 | |
222 | // append a new component |
223 | ATTRIBUTE_PRINTF(3, 4)__attribute__((format(printf, 3, 4))) |
224 | RecordLocation(ciEnv* ci, const char* fmt, ...) { |
225 | end = ci->_dyno_name + strlen(ci->_dyno_name); |
226 | va_list args; |
227 | va_start(args, fmt)__builtin_va_start(args, fmt); |
228 | push(ci, " "); |
229 | push_va(ci, fmt, args); |
230 | va_end(args)__builtin_va_end(args); |
231 | } |
232 | |
233 | // reset to previous state |
234 | ~RecordLocation() { |
235 | *end = '\0'; |
236 | } |
237 | }; |
238 | |
239 | ciEnv::ciEnv(Arena* arena) : _ciEnv_arena(mtCompiler) { |
240 | ASSERT_IN_VMdo { if (!(ciEnv::is_in_vm())) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 240, "assert(" "ciEnv::is_in_vm()" ") failed", "must be in vm state" ); ::breakpoint(); } } while (0);; |
241 | |
242 | // Set up ciEnv::current immediately, for the sake of ciObjectFactory, etc. |
243 | CompilerThread* current_thread = CompilerThread::current(); |
244 | assert(current_thread->env() == NULL, "must be")do { if (!(current_thread->env() == __null)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 244, "assert(" "current_thread->env() == __null" ") failed" , "must be"); ::breakpoint(); } } while (0); |
245 | current_thread->set_env(this); |
246 | assert(ciEnv::current() == this, "sanity")do { if (!(ciEnv::current() == this)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 246, "assert(" "ciEnv::current() == this" ") failed", "sanity" ); ::breakpoint(); } } while (0); |
247 | |
248 | _oop_recorder = NULL__null; |
249 | _debug_info = NULL__null; |
250 | _dependencies = NULL__null; |
251 | _failure_reason = NULL__null; |
252 | _inc_decompile_count_on_failure = true; |
253 | _compilable = MethodCompilable_never; |
254 | _break_at_compile = false; |
255 | _compiler_data = NULL__null; |
256 | #ifndef PRODUCT |
257 | assert(firstEnv, "must be first")do { if (!(firstEnv)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 257, "assert(" "firstEnv" ") failed", "must be first"); ::breakpoint (); } } while (0); |
258 | firstEnv = false; |
259 | #endif /* !PRODUCT */ |
260 | |
261 | _num_inlined_bytecodes = 0; |
262 | _task = NULL__null; |
263 | _log = NULL__null; |
264 | |
265 | // Temporary buffer for creating symbols and such. |
266 | _name_buffer = NULL__null; |
267 | _name_buffer_len = 0; |
268 | |
269 | _arena = arena; |
270 | _factory = new (_arena) ciObjectFactory(_arena, 128); |
271 | |
272 | // Preload commonly referenced system ciObjects. |
273 | |
274 | // During VM initialization, these instances have not yet been created. |
275 | // Assertions ensure that these instances are not accessed before |
276 | // their initialization. |
277 | |
278 | assert(Universe::is_fully_initialized(), "must be")do { if (!(Universe::is_fully_initialized())) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 278, "assert(" "Universe::is_fully_initialized()" ") failed" , "must be"); ::breakpoint(); } } while (0); |
279 | |
280 | _NullPointerException_instance = NULL__null; |
281 | _ArithmeticException_instance = NULL__null; |
282 | _ArrayIndexOutOfBoundsException_instance = NULL__null; |
283 | _ArrayStoreException_instance = NULL__null; |
284 | _ClassCastException_instance = NULL__null; |
285 | _the_null_string = NULL__null; |
286 | _the_min_jint_string = NULL__null; |
287 | |
288 | _jvmti_redefinition_count = 0; |
289 | _jvmti_can_hotswap_or_post_breakpoint = false; |
290 | _jvmti_can_access_local_variables = false; |
291 | _jvmti_can_post_on_exceptions = false; |
292 | _jvmti_can_pop_frame = false; |
293 | |
294 | _dyno_klasses = NULL__null; |
295 | _dyno_locs = NULL__null; |
296 | } |
297 | |
298 | ciEnv::~ciEnv() { |
299 | GUARDED_VM_ENTRY({if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
300 | CompilerThread* current_thread = CompilerThread::current();{if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
301 | _factory->remove_symbols();{if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
302 | // Need safepoint to clear the env on the thread. RedefineClasses might{if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
303 | // be reading it.{if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
304 | current_thread->set_env(NULL);{if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
305 | ){if (ciEnv::is_in_vm()) { CompilerThread* current_thread = CompilerThread ::current(); _factory->remove_symbols(); current_thread-> set_env(__null); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { CompilerThread* current_thread = CompilerThread::current (); _factory->remove_symbols(); current_thread->set_env (__null); }}} |
306 | } |
307 | |
308 | // ------------------------------------------------------------------ |
309 | // Cache Jvmti state |
310 | bool ciEnv::cache_jvmti_state() { |
311 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
312 | // Get Jvmti capabilities under lock to get consistant values. |
313 | MutexLocker mu(JvmtiThreadState_lock); |
314 | _jvmti_redefinition_count = JvmtiExport::redefinition_count(); |
315 | _jvmti_can_hotswap_or_post_breakpoint = JvmtiExport::can_hotswap_or_post_breakpoint(); |
316 | _jvmti_can_access_local_variables = JvmtiExport::can_access_local_variables(); |
317 | _jvmti_can_post_on_exceptions = JvmtiExport::can_post_on_exceptions(); |
318 | _jvmti_can_pop_frame = JvmtiExport::can_pop_frame(); |
319 | _jvmti_can_get_owned_monitor_info = JvmtiExport::can_get_owned_monitor_info(); |
320 | _jvmti_can_walk_any_space = JvmtiExport::can_walk_any_space(); |
321 | return _task != NULL__null && _task->method()->is_old(); |
322 | } |
323 | |
324 | bool ciEnv::jvmti_state_changed() const { |
325 | // Some classes were redefined |
326 | if (_jvmti_redefinition_count != JvmtiExport::redefinition_count()) { |
327 | return true; |
328 | } |
329 | |
330 | if (!_jvmti_can_access_local_variables && |
331 | JvmtiExport::can_access_local_variables()) { |
332 | return true; |
333 | } |
334 | if (!_jvmti_can_hotswap_or_post_breakpoint && |
335 | JvmtiExport::can_hotswap_or_post_breakpoint()) { |
336 | return true; |
337 | } |
338 | if (!_jvmti_can_post_on_exceptions && |
339 | JvmtiExport::can_post_on_exceptions()) { |
340 | return true; |
341 | } |
342 | if (!_jvmti_can_pop_frame && |
343 | JvmtiExport::can_pop_frame()) { |
344 | return true; |
345 | } |
346 | if (!_jvmti_can_get_owned_monitor_info && |
347 | JvmtiExport::can_get_owned_monitor_info()) { |
348 | return true; |
349 | } |
350 | if (!_jvmti_can_walk_any_space && |
351 | JvmtiExport::can_walk_any_space()) { |
352 | return true; |
353 | } |
354 | |
355 | return false; |
356 | } |
357 | |
358 | // ------------------------------------------------------------------ |
359 | // Cache DTrace flags |
360 | void ciEnv::cache_dtrace_flags() { |
361 | // Need lock? |
362 | _dtrace_extended_probes = ExtendedDTraceProbes; |
363 | if (_dtrace_extended_probes) { |
364 | _dtrace_method_probes = true; |
365 | _dtrace_alloc_probes = true; |
366 | } else { |
367 | _dtrace_method_probes = DTraceMethodProbes; |
368 | _dtrace_alloc_probes = DTraceAllocProbes; |
369 | } |
370 | } |
371 | |
372 | // ------------------------------------------------------------------ |
373 | // helper for lazy exception creation |
374 | ciInstance* ciEnv::get_or_create_exception(jobject& handle, Symbol* name) { |
375 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
376 | if (handle == NULL__null) { |
377 | // Cf. universe.cpp, creation of Universe::_null_ptr_exception_instance. |
378 | InstanceKlass* ik = SystemDictionary::find_instance_klass(name, Handle(), Handle()); |
379 | jobject objh = NULL__null; |
380 | if (ik != NULL__null) { |
381 | oop obj = ik->allocate_instance(THREAD__the_thread__); |
382 | if (!HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) |
383 | objh = JNIHandles::make_global(Handle(THREAD__the_thread__, obj)); |
384 | } |
385 | if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) { |
386 | CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception( )); |
387 | } else { |
388 | handle = objh; |
389 | } |
390 | } |
391 | oop obj = JNIHandles::resolve(handle); |
392 | return obj == NULL__null? NULL__null: get_object(obj)->as_instance(); |
393 | } |
394 | |
395 | ciInstance* ciEnv::ArrayIndexOutOfBoundsException_instance() { |
396 | if (_ArrayIndexOutOfBoundsException_instance == NULL__null) { |
397 | _ArrayIndexOutOfBoundsException_instance |
398 | = get_or_create_exception(_ArrayIndexOutOfBoundsException_handle, |
399 | vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); |
400 | } |
401 | return _ArrayIndexOutOfBoundsException_instance; |
402 | } |
403 | ciInstance* ciEnv::ArrayStoreException_instance() { |
404 | if (_ArrayStoreException_instance == NULL__null) { |
405 | _ArrayStoreException_instance |
406 | = get_or_create_exception(_ArrayStoreException_handle, |
407 | vmSymbols::java_lang_ArrayStoreException()); |
408 | } |
409 | return _ArrayStoreException_instance; |
410 | } |
411 | ciInstance* ciEnv::ClassCastException_instance() { |
412 | if (_ClassCastException_instance == NULL__null) { |
413 | _ClassCastException_instance |
414 | = get_or_create_exception(_ClassCastException_handle, |
415 | vmSymbols::java_lang_ClassCastException()); |
416 | } |
417 | return _ClassCastException_instance; |
418 | } |
419 | |
420 | ciInstance* ciEnv::the_null_string() { |
421 | if (_the_null_string == NULL__null) { |
422 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
423 | _the_null_string = get_object(Universe::the_null_string())->as_instance(); |
424 | } |
425 | return _the_null_string; |
426 | } |
427 | |
428 | ciInstance* ciEnv::the_min_jint_string() { |
429 | if (_the_min_jint_string == NULL__null) { |
430 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
431 | _the_min_jint_string = get_object(Universe::the_min_jint_string())->as_instance(); |
432 | } |
433 | return _the_min_jint_string; |
434 | } |
435 | |
436 | // ------------------------------------------------------------------ |
437 | // ciEnv::get_method_from_handle |
438 | ciMethod* ciEnv::get_method_from_handle(Method* method) { |
439 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
440 | return get_metadata(method)->as_method(); |
441 | } |
442 | |
443 | // ------------------------------------------------------------------ |
444 | // ciEnv::check_klass_accessiblity |
445 | // |
446 | // Note: the logic of this method should mirror the logic of |
447 | // ConstantPool::verify_constant_pool_resolve. |
448 | bool ciEnv::check_klass_accessibility(ciKlass* accessing_klass, |
449 | Klass* resolved_klass) { |
450 | if (accessing_klass == NULL__null || !accessing_klass->is_loaded()) { |
451 | return true; |
452 | } |
453 | if (accessing_klass->is_obj_array_klass()) { |
454 | accessing_klass = accessing_klass->as_obj_array_klass()->base_element_klass(); |
455 | } |
456 | if (!accessing_klass->is_instance_klass()) { |
457 | return true; |
458 | } |
459 | |
460 | if (resolved_klass->is_objArray_klass()) { |
461 | // Find the element klass, if this is an array. |
462 | resolved_klass = ObjArrayKlass::cast(resolved_klass)->bottom_klass(); |
463 | } |
464 | if (resolved_klass->is_instance_klass()) { |
465 | return (Reflection::verify_class_access(accessing_klass->get_Klass(), |
466 | InstanceKlass::cast(resolved_klass), |
467 | true) == Reflection::ACCESS_OK); |
468 | } |
469 | return true; |
470 | } |
471 | |
472 | // ------------------------------------------------------------------ |
473 | // ciEnv::get_klass_by_name_impl |
474 | ciKlass* ciEnv::get_klass_by_name_impl(ciKlass* accessing_klass, |
475 | const constantPoolHandle& cpool, |
476 | ciSymbol* name, |
477 | bool require_local) { |
478 | ASSERT_IN_VMdo { if (!(ciEnv::is_in_vm())) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 478, "assert(" "ciEnv::is_in_vm()" ") failed", "must be in vm state" ); ::breakpoint(); } } while (0);; |
479 | Thread* current = Thread::current(); |
480 | |
481 | // Now we need to check the SystemDictionary |
482 | Symbol* sym = name->get_symbol(); |
483 | if (Signature::has_envelope(sym)) { |
484 | // This is a name from a signature. Strip off the trimmings. |
485 | // Call recursive to keep scope of strippedsym. |
486 | TempNewSymbol strippedsym = Signature::strip_envelope(sym); |
487 | ciSymbol* strippedname = get_symbol(strippedsym); |
488 | return get_klass_by_name_impl(accessing_klass, cpool, strippedname, require_local); |
489 | } |
490 | |
491 | // Check for prior unloaded klass. The SystemDictionary's answers |
492 | // can vary over time but the compiler needs consistency. |
493 | ciKlass* unloaded_klass = check_get_unloaded_klass(accessing_klass, name); |
494 | if (unloaded_klass != NULL__null) { |
495 | if (require_local) return NULL__null; |
496 | return unloaded_klass; |
497 | } |
498 | |
499 | Handle loader; |
500 | Handle domain; |
501 | if (accessing_klass != NULL__null) { |
502 | loader = Handle(current, accessing_klass->loader()); |
503 | domain = Handle(current, accessing_klass->protection_domain()); |
504 | } |
505 | |
506 | // setup up the proper type to return on OOM |
507 | ciKlass* fail_type; |
508 | if (sym->char_at(0) == JVM_SIGNATURE_ARRAY) { |
509 | fail_type = _unloaded_ciobjarrayklass; |
510 | } else { |
511 | fail_type = _unloaded_ciinstance_klass; |
Value stored to 'fail_type' is never read | |
512 | } |
513 | Klass* found_klass; |
514 | { |
515 | ttyUnlocker ttyul; // release tty lock to avoid ordering problems |
516 | MutexLocker ml(current, Compile_lock); |
517 | Klass* kls; |
518 | if (!require_local) { |
519 | kls = SystemDictionary::find_constrained_instance_or_array_klass(current, sym, loader); |
520 | } else { |
521 | kls = SystemDictionary::find_instance_or_array_klass(sym, loader, domain); |
522 | } |
523 | found_klass = kls; |
524 | } |
525 | |
526 | // If we fail to find an array klass, look again for its element type. |
527 | // The element type may be available either locally or via constraints. |
528 | // In either case, if we can find the element type in the system dictionary, |
529 | // we must build an array type around it. The CI requires array klasses |
530 | // to be loaded if their element klasses are loaded, except when memory |
531 | // is exhausted. |
532 | if (Signature::is_array(sym) && |
533 | (sym->char_at(1) == JVM_SIGNATURE_ARRAY || sym->char_at(1) == JVM_SIGNATURE_CLASS)) { |
534 | // We have an unloaded array. |
535 | // Build it on the fly if the element class exists. |
536 | SignatureStream ss(sym, false); |
537 | ss.skip_array_prefix(1); |
538 | // Get element ciKlass recursively. |
539 | ciKlass* elem_klass = |
540 | get_klass_by_name_impl(accessing_klass, |
541 | cpool, |
542 | get_symbol(ss.as_symbol()), |
543 | require_local); |
544 | if (elem_klass != NULL__null && elem_klass->is_loaded()) { |
545 | // Now make an array for it |
546 | return ciObjArrayKlass::make_impl(elem_klass); |
547 | } |
548 | } |
549 | |
550 | if (found_klass == NULL__null && !cpool.is_null() && cpool->has_preresolution()) { |
551 | // Look inside the constant pool for pre-resolved class entries. |
552 | for (int i = cpool->length() - 1; i >= 1; i--) { |
553 | if (cpool->tag_at(i).is_klass()) { |
554 | Klass* kls = cpool->resolved_klass_at(i); |
555 | if (kls->name() == sym) { |
556 | found_klass = kls; |
557 | break; |
558 | } |
559 | } |
560 | } |
561 | } |
562 | |
563 | if (found_klass != NULL__null) { |
564 | // Found it. Build a CI handle. |
565 | return get_klass(found_klass); |
566 | } |
567 | |
568 | if (require_local) return NULL__null; |
569 | |
570 | // Not yet loaded into the VM, or not governed by loader constraints. |
571 | // Make a CI representative for it. |
572 | return get_unloaded_klass(accessing_klass, name); |
573 | } |
574 | |
575 | // ------------------------------------------------------------------ |
576 | // ciEnv::get_klass_by_name |
577 | ciKlass* ciEnv::get_klass_by_name(ciKlass* accessing_klass, |
578 | ciSymbol* klass_name, |
579 | bool require_local) { |
580 | GUARDED_VM_ENTRY(return get_klass_by_name_impl(accessing_klass,{if (ciEnv::is_in_vm()) { return get_klass_by_name_impl(accessing_klass , constantPoolHandle(), klass_name, require_local); } else { CompilerThread * thread=CompilerThread::current(); ThreadInVMfromNative __tiv (thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_klass_by_name_impl (accessing_klass, constantPoolHandle(), klass_name, require_local ); }}} |
581 | constantPoolHandle(),{if (ciEnv::is_in_vm()) { return get_klass_by_name_impl(accessing_klass , constantPoolHandle(), klass_name, require_local); } else { CompilerThread * thread=CompilerThread::current(); ThreadInVMfromNative __tiv (thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_klass_by_name_impl (accessing_klass, constantPoolHandle(), klass_name, require_local ); }}} |
582 | klass_name,{if (ciEnv::is_in_vm()) { return get_klass_by_name_impl(accessing_klass , constantPoolHandle(), klass_name, require_local); } else { CompilerThread * thread=CompilerThread::current(); ThreadInVMfromNative __tiv (thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_klass_by_name_impl (accessing_klass, constantPoolHandle(), klass_name, require_local ); }}} |
583 | require_local);){if (ciEnv::is_in_vm()) { return get_klass_by_name_impl(accessing_klass , constantPoolHandle(), klass_name, require_local); } else { CompilerThread * thread=CompilerThread::current(); ThreadInVMfromNative __tiv (thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_klass_by_name_impl (accessing_klass, constantPoolHandle(), klass_name, require_local ); }}} |
584 | } |
585 | |
586 | // ------------------------------------------------------------------ |
587 | // ciEnv::get_klass_by_index_impl |
588 | // |
589 | // Implementation of get_klass_by_index. |
590 | ciKlass* ciEnv::get_klass_by_index_impl(const constantPoolHandle& cpool, |
591 | int index, |
592 | bool& is_accessible, |
593 | ciInstanceKlass* accessor) { |
594 | EXCEPTION_CONTEXTCompilerThread* thread = CompilerThread::current(); JavaThread * __the_thread__ = thread;; |
595 | Klass* klass = NULL__null; |
596 | Symbol* klass_name = NULL__null; |
597 | |
598 | if (cpool->tag_at(index).is_symbol()) { |
599 | klass_name = cpool->symbol_at(index); |
600 | } else { |
601 | // Check if it's resolved if it's not a symbol constant pool entry. |
602 | klass = ConstantPool::klass_at_if_loaded(cpool, index); |
603 | // Try to look it up by name. |
604 | if (klass == NULL__null) { |
605 | klass_name = cpool->klass_name_at(index); |
606 | } |
607 | } |
608 | |
609 | if (klass == NULL__null) { |
610 | // Not found in constant pool. Use the name to do the lookup. |
611 | ciKlass* k = get_klass_by_name_impl(accessor, |
612 | cpool, |
613 | get_symbol(klass_name), |
614 | false); |
615 | // Calculate accessibility the hard way. |
616 | if (!k->is_loaded()) { |
617 | is_accessible = false; |
618 | } else if (k->loader() != accessor->loader() && |
619 | get_klass_by_name_impl(accessor, cpool, k->name(), true) == NULL__null) { |
620 | // Loaded only remotely. Not linked yet. |
621 | is_accessible = false; |
622 | } else { |
623 | // Linked locally, and we must also check public/private, etc. |
624 | is_accessible = check_klass_accessibility(accessor, k->get_Klass()); |
625 | } |
626 | return k; |
627 | } |
628 | |
629 | // Check for prior unloaded klass. The SystemDictionary's answers |
630 | // can vary over time but the compiler needs consistency. |
631 | ciSymbol* name = get_symbol(klass->name()); |
632 | ciKlass* unloaded_klass = check_get_unloaded_klass(accessor, name); |
633 | if (unloaded_klass != NULL__null) { |
634 | is_accessible = false; |
635 | return unloaded_klass; |
636 | } |
637 | |
638 | // It is known to be accessible, since it was found in the constant pool. |
639 | ciKlass* ciKlass = get_klass(klass); |
640 | is_accessible = true; |
641 | #ifndef PRODUCT |
642 | if (ReplayCompiles && ciKlass == _unloaded_ciinstance_klass) { |
643 | // Klass was unresolved at replay dump time and therefore not accessible. |
644 | is_accessible = false; |
645 | } |
646 | #endif |
647 | return ciKlass; |
648 | } |
649 | |
650 | // ------------------------------------------------------------------ |
651 | // ciEnv::get_klass_by_index |
652 | // |
653 | // Get a klass from the constant pool. |
654 | ciKlass* ciEnv::get_klass_by_index(const constantPoolHandle& cpool, |
655 | int index, |
656 | bool& is_accessible, |
657 | ciInstanceKlass* accessor) { |
658 | GUARDED_VM_ENTRY(return get_klass_by_index_impl(cpool, index, is_accessible, accessor);){if (ciEnv::is_in_vm()) { return get_klass_by_index_impl(cpool , index, is_accessible, accessor); } else { CompilerThread* thread =CompilerThread::current(); ThreadInVMfromNative __tiv(thread ); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_klass_by_index_impl (cpool, index, is_accessible, accessor); }}} |
659 | } |
660 | |
661 | // ------------------------------------------------------------------ |
662 | // ciEnv::get_constant_by_index_impl |
663 | // |
664 | // Implementation of get_constant_by_index(). |
665 | ciConstant ciEnv::get_constant_by_index_impl(const constantPoolHandle& cpool, |
666 | int pool_index, int cache_index, |
667 | ciInstanceKlass* accessor) { |
668 | bool ignore_will_link; |
669 | EXCEPTION_CONTEXTCompilerThread* thread = CompilerThread::current(); JavaThread * __the_thread__ = thread;; |
670 | int index = pool_index; |
671 | if (cache_index >= 0) { |
672 | assert(index < 0, "only one kind of index at a time")do { if (!(index < 0)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 672, "assert(" "index < 0" ") failed", "only one kind of index at a time" ); ::breakpoint(); } } while (0); |
673 | index = cpool->object_to_cp_index(cache_index); |
674 | oop obj = cpool->resolved_references()->obj_at(cache_index); |
675 | if (obj != NULL__null) { |
676 | if (obj == Universe::the_null_sentinel()) { |
677 | return ciConstant(T_OBJECT, get_object(NULL__null)); |
678 | } |
679 | BasicType bt = T_OBJECT; |
680 | if (cpool->tag_at(index).is_dynamic_constant()) |
681 | bt = Signature::basic_type(cpool->uncached_signature_ref_at(index)); |
682 | if (is_reference_type(bt)) { |
683 | } else { |
684 | // we have to unbox the primitive value |
685 | if (!is_java_primitive(bt)) return ciConstant(); |
686 | jvalue value; |
687 | BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); |
688 | assert(bt2 == bt, "")do { if (!(bt2 == bt)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 688, "assert(" "bt2 == bt" ") failed", ""); ::breakpoint(); } } while (0); |
689 | switch (bt2) { |
690 | case T_DOUBLE: return ciConstant(value.d); |
691 | case T_FLOAT: return ciConstant(value.f); |
692 | case T_LONG: return ciConstant(value.j); |
693 | case T_INT: return ciConstant(bt2, value.i); |
694 | case T_SHORT: return ciConstant(bt2, value.s); |
695 | case T_BYTE: return ciConstant(bt2, value.b); |
696 | case T_CHAR: return ciConstant(bt2, value.c); |
697 | case T_BOOLEAN: return ciConstant(bt2, value.z); |
698 | default: return ciConstant(); |
699 | } |
700 | } |
701 | ciObject* ciobj = get_object(obj); |
702 | if (ciobj->is_array()) { |
703 | return ciConstant(T_ARRAY, ciobj); |
704 | } else { |
705 | assert(ciobj->is_instance(), "should be an instance")do { if (!(ciobj->is_instance())) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 705, "assert(" "ciobj->is_instance()" ") failed", "should be an instance" ); ::breakpoint(); } } while (0); |
706 | return ciConstant(T_OBJECT, ciobj); |
707 | } |
708 | } |
709 | } |
710 | constantTag tag = cpool->tag_at(index); |
711 | if (tag.is_int()) { |
712 | return ciConstant(T_INT, (jint)cpool->int_at(index)); |
713 | } else if (tag.is_long()) { |
714 | return ciConstant((jlong)cpool->long_at(index)); |
715 | } else if (tag.is_float()) { |
716 | return ciConstant((jfloat)cpool->float_at(index)); |
717 | } else if (tag.is_double()) { |
718 | return ciConstant((jdouble)cpool->double_at(index)); |
719 | } else if (tag.is_string()) { |
720 | oop string = NULL__null; |
721 | assert(cache_index >= 0, "should have a cache index")do { if (!(cache_index >= 0)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 721, "assert(" "cache_index >= 0" ") failed", "should have a cache index" ); ::breakpoint(); } } while (0); |
722 | string = cpool->string_at(index, cache_index, THREAD__the_thread__); |
723 | if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) { |
724 | CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception( )); |
725 | record_out_of_memory_failure(); |
726 | return ciConstant(); |
727 | } |
728 | ciObject* constant = get_object(string); |
729 | if (constant->is_array()) { |
730 | return ciConstant(T_ARRAY, constant); |
731 | } else { |
732 | assert (constant->is_instance(), "must be an instance, or not? ")do { if (!(constant->is_instance())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 732, "assert(" "constant->is_instance()" ") failed", "must be an instance, or not? " ); ::breakpoint(); } } while (0); |
733 | return ciConstant(T_OBJECT, constant); |
734 | } |
735 | } else if (tag.is_unresolved_klass_in_error()) { |
736 | return ciConstant(); |
737 | } else if (tag.is_klass() || tag.is_unresolved_klass()) { |
738 | // 4881222: allow ldc to take a class type |
739 | ciKlass* klass = get_klass_by_index_impl(cpool, index, ignore_will_link, accessor); |
740 | if (HAS_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->has_pending_exception())) { |
741 | CLEAR_PENDING_EXCEPTION(((ThreadShadow*)__the_thread__)->clear_pending_exception( )); |
742 | record_out_of_memory_failure(); |
743 | return ciConstant(); |
744 | } |
745 | assert (klass->is_instance_klass() || klass->is_array_klass(),do { if (!(klass->is_instance_klass() || klass->is_array_klass ())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 746, "assert(" "klass->is_instance_klass() || klass->is_array_klass()" ") failed", "must be an instance or array klass "); ::breakpoint (); } } while (0) |
746 | "must be an instance or array klass ")do { if (!(klass->is_instance_klass() || klass->is_array_klass ())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 746, "assert(" "klass->is_instance_klass() || klass->is_array_klass()" ") failed", "must be an instance or array klass "); ::breakpoint (); } } while (0); |
747 | return ciConstant(T_OBJECT, klass->java_mirror()); |
748 | } else if (tag.is_method_type()) { |
749 | // must execute Java code to link this CP entry into cache[i].f1 |
750 | ciSymbol* signature = get_symbol(cpool->method_type_signature_at(index)); |
751 | ciObject* ciobj = get_unloaded_method_type_constant(signature); |
752 | return ciConstant(T_OBJECT, ciobj); |
753 | } else if (tag.is_method_handle()) { |
754 | // must execute Java code to link this CP entry into cache[i].f1 |
755 | int ref_kind = cpool->method_handle_ref_kind_at(index); |
756 | int callee_index = cpool->method_handle_klass_index_at(index); |
757 | ciKlass* callee = get_klass_by_index_impl(cpool, callee_index, ignore_will_link, accessor); |
758 | ciSymbol* name = get_symbol(cpool->method_handle_name_ref_at(index)); |
759 | ciSymbol* signature = get_symbol(cpool->method_handle_signature_ref_at(index)); |
760 | ciObject* ciobj = get_unloaded_method_handle_constant(callee, name, signature, ref_kind); |
761 | return ciConstant(T_OBJECT, ciobj); |
762 | } else if (tag.is_dynamic_constant()) { |
763 | return ciConstant(); |
764 | } else { |
765 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 765); ::breakpoint(); } while (0); |
766 | return ciConstant(); |
767 | } |
768 | } |
769 | |
770 | // ------------------------------------------------------------------ |
771 | // ciEnv::get_constant_by_index |
772 | // |
773 | // Pull a constant out of the constant pool. How appropriate. |
774 | // |
775 | // Implementation note: this query is currently in no way cached. |
776 | ciConstant ciEnv::get_constant_by_index(const constantPoolHandle& cpool, |
777 | int pool_index, int cache_index, |
778 | ciInstanceKlass* accessor) { |
779 | GUARDED_VM_ENTRY(return get_constant_by_index_impl(cpool, pool_index, cache_index, accessor);){if (ciEnv::is_in_vm()) { return get_constant_by_index_impl(cpool , pool_index, cache_index, accessor); } else { CompilerThread * thread=CompilerThread::current(); ThreadInVMfromNative __tiv (thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_constant_by_index_impl (cpool, pool_index, cache_index, accessor); }}} |
780 | } |
781 | |
782 | // ------------------------------------------------------------------ |
783 | // ciEnv::get_field_by_index_impl |
784 | // |
785 | // Implementation of get_field_by_index. |
786 | // |
787 | // Implementation note: the results of field lookups are cached |
788 | // in the accessor klass. |
789 | ciField* ciEnv::get_field_by_index_impl(ciInstanceKlass* accessor, |
790 | int index) { |
791 | ciConstantPoolCache* cache = accessor->field_cache(); |
792 | if (cache == NULL__null) { |
793 | ciField* field = new (arena()) ciField(accessor, index); |
794 | return field; |
795 | } else { |
796 | ciField* field = (ciField*)cache->get(index); |
797 | if (field == NULL__null) { |
798 | field = new (arena()) ciField(accessor, index); |
799 | cache->insert(index, field); |
800 | } |
801 | return field; |
802 | } |
803 | } |
804 | |
805 | // ------------------------------------------------------------------ |
806 | // ciEnv::get_field_by_index |
807 | // |
808 | // Get a field by index from a klass's constant pool. |
809 | ciField* ciEnv::get_field_by_index(ciInstanceKlass* accessor, |
810 | int index) { |
811 | GUARDED_VM_ENTRY(return get_field_by_index_impl(accessor, index);){if (ciEnv::is_in_vm()) { return get_field_by_index_impl(accessor , index); } else { CompilerThread* thread=CompilerThread::current (); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm (thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_field_by_index_impl(accessor, index); } }} |
812 | } |
813 | |
814 | // ------------------------------------------------------------------ |
815 | // ciEnv::lookup_method |
816 | // |
817 | // Perform an appropriate method lookup based on accessor, holder, |
818 | // name, signature, and bytecode. |
819 | Method* ciEnv::lookup_method(ciInstanceKlass* accessor, |
820 | ciKlass* holder, |
821 | Symbol* name, |
822 | Symbol* sig, |
823 | Bytecodes::Code bc, |
824 | constantTag tag) { |
825 | InstanceKlass* accessor_klass = accessor->get_instanceKlass(); |
826 | Klass* holder_klass = holder->get_Klass(); |
827 | |
828 | // Accessibility checks are performed in ciEnv::get_method_by_index_impl. |
829 | assert(check_klass_accessibility(accessor, holder_klass), "holder not accessible")do { if (!(check_klass_accessibility(accessor, holder_klass)) ) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 829, "assert(" "check_klass_accessibility(accessor, holder_klass)" ") failed", "holder not accessible"); ::breakpoint(); } } while (0); |
830 | |
831 | LinkInfo link_info(holder_klass, name, sig, accessor_klass, |
832 | LinkInfo::AccessCheck::required, |
833 | LinkInfo::LoaderConstraintCheck::required, |
834 | tag); |
835 | switch (bc) { |
836 | case Bytecodes::_invokestatic: |
837 | return LinkResolver::resolve_static_call_or_null(link_info); |
838 | case Bytecodes::_invokespecial: |
839 | return LinkResolver::resolve_special_call_or_null(link_info); |
840 | case Bytecodes::_invokeinterface: |
841 | return LinkResolver::linktime_resolve_interface_method_or_null(link_info); |
842 | case Bytecodes::_invokevirtual: |
843 | return LinkResolver::linktime_resolve_virtual_method_or_null(link_info); |
844 | default: |
845 | fatal("Unhandled bytecode: %s", Bytecodes::name(bc))do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 845, "Unhandled bytecode: %s", Bytecodes::name(bc)); ::breakpoint (); } while (0); |
846 | return NULL__null; // silence compiler warnings |
847 | } |
848 | } |
849 | |
850 | |
851 | // ------------------------------------------------------------------ |
852 | // ciEnv::get_method_by_index_impl |
853 | ciMethod* ciEnv::get_method_by_index_impl(const constantPoolHandle& cpool, |
854 | int index, Bytecodes::Code bc, |
855 | ciInstanceKlass* accessor) { |
856 | assert(cpool.not_null(), "need constant pool")do { if (!(cpool.not_null())) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 856, "assert(" "cpool.not_null()" ") failed", "need constant pool" ); ::breakpoint(); } } while (0); |
857 | assert(accessor != NULL, "need origin of access")do { if (!(accessor != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 857, "assert(" "accessor != __null" ") failed", "need origin of access" ); ::breakpoint(); } } while (0); |
858 | if (bc == Bytecodes::_invokedynamic) { |
859 | ConstantPoolCacheEntry* cpce = cpool->invokedynamic_cp_cache_entry_at(index); |
860 | bool is_resolved = !cpce->is_f1_null(); |
861 | // FIXME: code generation could allow for null (unlinked) call site |
862 | // The call site could be made patchable as follows: |
863 | // Load the appendix argument from the constant pool. |
864 | // Test the appendix argument and jump to a known deopt routine if it is null. |
865 | // Jump through a patchable call site, which is initially a deopt routine. |
866 | // Patch the call site to the nmethod entry point of the static compiled lambda form. |
867 | // As with other two-component call sites, both values must be independently verified. |
868 | |
869 | if (is_resolved) { |
870 | // Get the invoker Method* from the constant pool. |
871 | // (The appendix argument, if any, will be noted in the method's signature.) |
872 | Method* adapter = cpce->f1_as_method(); |
873 | return get_method(adapter); |
874 | } |
875 | |
876 | // Fake a method that is equivalent to a declared method. |
877 | ciInstanceKlass* holder = get_instance_klass(vmClasses::MethodHandle_klass()); |
878 | ciSymbol* name = ciSymbols::invokeBasic_name(); |
879 | ciSymbol* signature = get_symbol(cpool->signature_ref_at(index)); |
880 | return get_unloaded_method(holder, name, signature, accessor); |
881 | } else { |
882 | const int holder_index = cpool->klass_ref_index_at(index); |
883 | bool holder_is_accessible; |
884 | ciKlass* holder = get_klass_by_index_impl(cpool, holder_index, holder_is_accessible, accessor); |
885 | |
886 | // Get the method's name and signature. |
887 | Symbol* name_sym = cpool->name_ref_at(index); |
888 | Symbol* sig_sym = cpool->signature_ref_at(index); |
889 | |
890 | if (cpool->has_preresolution() |
891 | || ((holder == ciEnv::MethodHandle_klass() || holder == ciEnv::VarHandle_klass()) && |
892 | MethodHandles::is_signature_polymorphic_name(holder->get_Klass(), name_sym))) { |
893 | // Short-circuit lookups for JSR 292-related call sites. |
894 | // That is, do not rely only on name-based lookups, because they may fail |
895 | // if the names are not resolvable in the boot class loader (7056328). |
896 | switch (bc) { |
897 | case Bytecodes::_invokevirtual: |
898 | case Bytecodes::_invokeinterface: |
899 | case Bytecodes::_invokespecial: |
900 | case Bytecodes::_invokestatic: |
901 | { |
902 | Method* m = ConstantPool::method_at_if_loaded(cpool, index); |
903 | if (m != NULL__null) { |
904 | return get_method(m); |
905 | } |
906 | } |
907 | break; |
908 | default: |
909 | break; |
910 | } |
911 | } |
912 | |
913 | if (holder_is_accessible) { // Our declared holder is loaded. |
914 | constantTag tag = cpool->tag_ref_at(index); |
915 | assert(accessor->get_instanceKlass() == cpool->pool_holder(), "not the pool holder?")do { if (!(accessor->get_instanceKlass() == cpool->pool_holder ())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 915, "assert(" "accessor->get_instanceKlass() == cpool->pool_holder()" ") failed", "not the pool holder?"); ::breakpoint(); } } while (0); |
916 | Method* m = lookup_method(accessor, holder, name_sym, sig_sym, bc, tag); |
917 | if (m != NULL__null && |
918 | (bc == Bytecodes::_invokestatic |
919 | ? m->method_holder()->is_not_initialized() |
920 | : !m->method_holder()->is_loaded())) { |
921 | m = NULL__null; |
922 | } |
923 | #ifdef ASSERT1 |
924 | if (m != NULL__null && ReplayCompiles && !ciReplay::is_loaded(m)) { |
925 | m = NULL__null; |
926 | } |
927 | #endif |
928 | if (m != NULL__null) { |
929 | // We found the method. |
930 | return get_method(m); |
931 | } |
932 | } |
933 | |
934 | // Either the declared holder was not loaded, or the method could |
935 | // not be found. Create a dummy ciMethod to represent the failed |
936 | // lookup. |
937 | ciSymbol* name = get_symbol(name_sym); |
938 | ciSymbol* signature = get_symbol(sig_sym); |
939 | return get_unloaded_method(holder, name, signature, accessor); |
940 | } |
941 | } |
942 | |
943 | |
944 | // ------------------------------------------------------------------ |
945 | // ciEnv::get_instance_klass_for_declared_method_holder |
946 | ciInstanceKlass* ciEnv::get_instance_klass_for_declared_method_holder(ciKlass* method_holder) { |
947 | // For the case of <array>.clone(), the method holder can be a ciArrayKlass |
948 | // instead of a ciInstanceKlass. For that case simply pretend that the |
949 | // declared holder is Object.clone since that's where the call will bottom out. |
950 | // A more correct fix would trickle out through many interfaces in CI, |
951 | // requiring ciInstanceKlass* to become ciKlass* and many more places would |
952 | // require checks to make sure the expected type was found. Given that this |
953 | // only occurs for clone() the more extensive fix seems like overkill so |
954 | // instead we simply smear the array type into Object. |
955 | guarantee(method_holder != NULL, "no method holder")do { if (!(method_holder != __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 955, "guarantee(" "method_holder != NULL" ") failed", "no method holder" ); ::breakpoint(); } } while (0); |
956 | if (method_holder->is_instance_klass()) { |
957 | return method_holder->as_instance_klass(); |
958 | } else if (method_holder->is_array_klass()) { |
959 | return current()->Object_klass(); |
960 | } else { |
961 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 961); ::breakpoint(); } while (0); |
962 | } |
963 | return NULL__null; |
964 | } |
965 | |
966 | |
967 | // ------------------------------------------------------------------ |
968 | // ciEnv::get_method_by_index |
969 | ciMethod* ciEnv::get_method_by_index(const constantPoolHandle& cpool, |
970 | int index, Bytecodes::Code bc, |
971 | ciInstanceKlass* accessor) { |
972 | GUARDED_VM_ENTRY(return get_method_by_index_impl(cpool, index, bc, accessor);){if (ciEnv::is_in_vm()) { return get_method_by_index_impl(cpool , index, bc, accessor); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return get_method_by_index_impl(cpool, index, bc, accessor ); }}} |
973 | } |
974 | |
975 | |
976 | // ------------------------------------------------------------------ |
977 | // ciEnv::name_buffer |
978 | char *ciEnv::name_buffer(int req_len) { |
979 | if (_name_buffer_len < req_len) { |
980 | if (_name_buffer == NULL__null) { |
981 | _name_buffer = (char*)arena()->Amalloc(sizeof(char)*req_len); |
982 | _name_buffer_len = req_len; |
983 | } else { |
984 | _name_buffer = |
985 | (char*)arena()->Arealloc(_name_buffer, _name_buffer_len, req_len); |
986 | _name_buffer_len = req_len; |
987 | } |
988 | } |
989 | return _name_buffer; |
990 | } |
991 | |
992 | // ------------------------------------------------------------------ |
993 | // ciEnv::is_in_vm |
994 | bool ciEnv::is_in_vm() { |
995 | return JavaThread::current()->thread_state() == _thread_in_vm; |
996 | } |
997 | |
998 | // ------------------------------------------------------------------ |
999 | // ciEnv::validate_compile_task_dependencies |
1000 | // |
1001 | // Check for changes during compilation (e.g. class loads, evolution, |
1002 | // breakpoints, call site invalidation). |
1003 | void ciEnv::validate_compile_task_dependencies(ciMethod* target) { |
1004 | if (failing()) return; // no need for further checks |
1005 | |
1006 | Dependencies::DepType result = dependencies()->validate_dependencies(_task); |
1007 | if (result != Dependencies::end_marker) { |
1008 | if (result == Dependencies::call_site_target_value) { |
1009 | _inc_decompile_count_on_failure = false; |
1010 | record_failure("call site target change"); |
1011 | } else if (Dependencies::is_klass_type(result)) { |
1012 | record_failure("concurrent class loading"); |
1013 | } else { |
1014 | record_failure("invalid non-klass dependency"); |
1015 | } |
1016 | } |
1017 | } |
1018 | |
1019 | // ------------------------------------------------------------------ |
1020 | // ciEnv::register_method |
1021 | void ciEnv::register_method(ciMethod* target, |
1022 | int entry_bci, |
1023 | CodeOffsets* offsets, |
1024 | int orig_pc_offset, |
1025 | CodeBuffer* code_buffer, |
1026 | int frame_words, |
1027 | OopMapSet* oop_map_set, |
1028 | ExceptionHandlerTable* handler_table, |
1029 | ImplicitExceptionTable* inc_table, |
1030 | AbstractCompiler* compiler, |
1031 | bool has_unsafe_access, |
1032 | bool has_wide_vectors, |
1033 | RTMState rtm_state, |
1034 | const GrowableArrayView<RuntimeStub*>& native_invokers) { |
1035 | VM_ENTRY_MARKCompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; |
1036 | nmethod* nm = NULL__null; |
1037 | { |
1038 | methodHandle method(THREAD__the_thread__, target->get_Method()); |
1039 | |
1040 | // We require method counters to store some method state (max compilation levels) required by the compilation policy. |
1041 | if (method->get_method_counters(THREAD__the_thread__) == NULL__null) { |
1042 | record_failure("can't create method counters"); |
1043 | // All buffers in the CodeBuffer are allocated in the CodeCache. |
1044 | // If the code buffer is created on each compile attempt |
1045 | // as in C2, then it must be freed. |
1046 | code_buffer->free_blob(); |
1047 | return; |
1048 | } |
1049 | |
1050 | // To prevent compile queue updates. |
1051 | MutexLocker locker(THREAD__the_thread__, MethodCompileQueue_lock); |
1052 | |
1053 | // Prevent SystemDictionary::add_to_hierarchy from running |
1054 | // and invalidating our dependencies until we install this method. |
1055 | // No safepoints are allowed. Otherwise, class redefinition can occur in between. |
1056 | MutexLocker ml(Compile_lock); |
1057 | NoSafepointVerifier nsv; |
1058 | |
1059 | // Change in Jvmti state may invalidate compilation. |
1060 | if (!failing() && jvmti_state_changed()) { |
1061 | record_failure("Jvmti state change invalidated dependencies"); |
1062 | } |
1063 | |
1064 | // Change in DTrace flags may invalidate compilation. |
1065 | if (!failing() && |
1066 | ( (!dtrace_extended_probes() && ExtendedDTraceProbes) || |
1067 | (!dtrace_method_probes() && DTraceMethodProbes) || |
1068 | (!dtrace_alloc_probes() && DTraceAllocProbes) )) { |
1069 | record_failure("DTrace flags change invalidated dependencies"); |
1070 | } |
1071 | |
1072 | if (!failing() && target->needs_clinit_barrier() && |
1073 | target->holder()->is_in_error_state()) { |
1074 | record_failure("method holder is in error state"); |
1075 | } |
1076 | |
1077 | if (!failing()) { |
1078 | if (log() != NULL__null) { |
1079 | // Log the dependencies which this compilation declares. |
1080 | dependencies()->log_all_dependencies(); |
1081 | } |
1082 | |
1083 | // Encode the dependencies now, so we can check them right away. |
1084 | dependencies()->encode_content_bytes(); |
1085 | |
1086 | // Check for {class loads, evolution, breakpoints, ...} during compilation |
1087 | validate_compile_task_dependencies(target); |
1088 | } |
1089 | #if INCLUDE_RTM_OPT1 |
1090 | if (!failing() && (rtm_state != NoRTM) && |
1091 | (method()->method_data() != NULL__null) && |
1092 | (method()->method_data()->rtm_state() != rtm_state)) { |
1093 | // Preemptive decompile if rtm state was changed. |
1094 | record_failure("RTM state change invalidated rtm code"); |
1095 | } |
1096 | #endif |
1097 | |
1098 | if (failing()) { |
1099 | // While not a true deoptimization, it is a preemptive decompile. |
1100 | MethodData* mdo = method()->method_data(); |
1101 | if (mdo != NULL__null && _inc_decompile_count_on_failure) { |
1102 | mdo->inc_decompile_count(); |
1103 | } |
1104 | |
1105 | // All buffers in the CodeBuffer are allocated in the CodeCache. |
1106 | // If the code buffer is created on each compile attempt |
1107 | // as in C2, then it must be freed. |
1108 | code_buffer->free_blob(); |
1109 | return; |
1110 | } |
1111 | |
1112 | assert(offsets->value(CodeOffsets::Deopt) != -1, "must have deopt entry")do { if (!(offsets->value(CodeOffsets::Deopt) != -1)) { (* g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 1112, "assert(" "offsets->value(CodeOffsets::Deopt) != -1" ") failed", "must have deopt entry"); ::breakpoint(); } } while (0); |
1113 | assert(offsets->value(CodeOffsets::Exceptions) != -1, "must have exception entry")do { if (!(offsets->value(CodeOffsets::Exceptions) != -1)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 1113, "assert(" "offsets->value(CodeOffsets::Exceptions) != -1" ") failed", "must have exception entry"); ::breakpoint(); } } while (0); |
1114 | |
1115 | nm = nmethod::new_nmethod(method, |
1116 | compile_id(), |
1117 | entry_bci, |
1118 | offsets, |
1119 | orig_pc_offset, |
1120 | debug_info(), dependencies(), code_buffer, |
1121 | frame_words, oop_map_set, |
1122 | handler_table, inc_table, |
1123 | compiler, task()->comp_level(), |
1124 | native_invokers); |
1125 | |
1126 | // Free codeBlobs |
1127 | code_buffer->free_blob(); |
1128 | |
1129 | if (nm != NULL__null) { |
1130 | nm->set_has_unsafe_access(has_unsafe_access); |
1131 | nm->set_has_wide_vectors(has_wide_vectors); |
1132 | #if INCLUDE_RTM_OPT1 |
1133 | nm->set_rtm_state(rtm_state); |
1134 | #endif |
1135 | |
1136 | // Record successful registration. |
1137 | // (Put nm into the task handle *before* publishing to the Java heap.) |
1138 | if (task() != NULL__null) { |
1139 | task()->set_code(nm); |
1140 | } |
1141 | |
1142 | if (entry_bci == InvocationEntryBci) { |
1143 | if (TieredCompilation) { |
1144 | // If there is an old version we're done with it |
1145 | CompiledMethod* old = method->code(); |
1146 | if (TraceMethodReplacement && old != NULL__null) { |
1147 | ResourceMark rm; |
1148 | char *method_name = method->name_and_sig_as_C_string(); |
1149 | tty->print_cr("Replacing method %s", method_name); |
1150 | } |
1151 | if (old != NULL__null) { |
1152 | old->make_not_used(); |
1153 | } |
1154 | } |
1155 | |
1156 | LogTarget(Info, nmethod, install)LogTargetImpl<LogLevel::Info, (LogTag::_nmethod), (LogTag:: _install), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG)> lt; |
1157 | if (lt.is_enabled()) { |
1158 | ResourceMark rm; |
1159 | char *method_name = method->name_and_sig_as_C_string(); |
1160 | lt.print("Installing method (%d) %s ", |
1161 | task()->comp_level(), method_name); |
1162 | } |
1163 | // Allow the code to be executed |
1164 | MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); |
1165 | if (nm->make_in_use()) { |
1166 | method->set_code(method, nm); |
1167 | } |
1168 | } else { |
1169 | LogTarget(Info, nmethod, install)LogTargetImpl<LogLevel::Info, (LogTag::_nmethod), (LogTag:: _install), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG)> lt; |
1170 | if (lt.is_enabled()) { |
1171 | ResourceMark rm; |
1172 | char *method_name = method->name_and_sig_as_C_string(); |
1173 | lt.print("Installing osr method (%d) %s @ %d", |
1174 | task()->comp_level(), method_name, entry_bci); |
1175 | } |
1176 | MutexLocker ml(CompiledMethod_lock, Mutex::_no_safepoint_check_flag); |
1177 | if (nm->make_in_use()) { |
1178 | method->method_holder()->add_osr_nmethod(nm); |
1179 | } |
1180 | } |
1181 | } |
1182 | } // safepoints are allowed again |
1183 | |
1184 | if (nm != NULL__null) { |
1185 | // JVMTI -- compiled method notification (must be done outside lock) |
1186 | nm->post_compiled_method_load_event(); |
1187 | } else { |
1188 | // The CodeCache is full. |
1189 | record_failure("code cache is full"); |
1190 | } |
1191 | } |
1192 | |
1193 | // ------------------------------------------------------------------ |
1194 | // ciEnv::comp_level |
1195 | int ciEnv::comp_level() { |
1196 | if (task() == NULL__null) return CompilationPolicy::highest_compile_level(); |
1197 | return task()->comp_level(); |
1198 | } |
1199 | |
1200 | // ------------------------------------------------------------------ |
1201 | // ciEnv::compile_id |
1202 | uint ciEnv::compile_id() { |
1203 | if (task() == NULL__null) return 0; |
1204 | return task()->compile_id(); |
1205 | } |
1206 | |
1207 | // ------------------------------------------------------------------ |
1208 | // ciEnv::notice_inlined_method() |
1209 | void ciEnv::notice_inlined_method(ciMethod* method) { |
1210 | _num_inlined_bytecodes += method->code_size_for_inlining(); |
1211 | } |
1212 | |
1213 | // ------------------------------------------------------------------ |
1214 | // ciEnv::num_inlined_bytecodes() |
1215 | int ciEnv::num_inlined_bytecodes() const { |
1216 | return _num_inlined_bytecodes; |
1217 | } |
1218 | |
1219 | // ------------------------------------------------------------------ |
1220 | // ciEnv::record_failure() |
1221 | void ciEnv::record_failure(const char* reason) { |
1222 | if (_failure_reason == NULL__null) { |
1223 | // Record the first failure reason. |
1224 | _failure_reason = reason; |
1225 | } |
1226 | } |
1227 | |
1228 | void ciEnv::report_failure(const char* reason) { |
1229 | EventCompilationFailure event; |
1230 | if (event.should_commit()) { |
1231 | CompilerEvent::CompilationFailureEvent::post(event, compile_id(), reason); |
1232 | } |
1233 | } |
1234 | |
1235 | // ------------------------------------------------------------------ |
1236 | // ciEnv::record_method_not_compilable() |
1237 | void ciEnv::record_method_not_compilable(const char* reason, bool all_tiers) { |
1238 | int new_compilable = |
1239 | all_tiers ? MethodCompilable_never : MethodCompilable_not_at_tier ; |
1240 | |
1241 | // Only note transitions to a worse state |
1242 | if (new_compilable > _compilable) { |
1243 | if (log() != NULL__null) { |
1244 | if (all_tiers) { |
1245 | log()->elem("method_not_compilable"); |
1246 | } else { |
1247 | log()->elem("method_not_compilable_at_tier level='%d'", |
1248 | current()->task()->comp_level()); |
1249 | } |
1250 | } |
1251 | _compilable = new_compilable; |
1252 | |
1253 | // Reset failure reason; this one is more important. |
1254 | _failure_reason = NULL__null; |
1255 | record_failure(reason); |
1256 | } |
1257 | } |
1258 | |
1259 | // ------------------------------------------------------------------ |
1260 | // ciEnv::record_out_of_memory_failure() |
1261 | void ciEnv::record_out_of_memory_failure() { |
1262 | // If memory is low, we stop compiling methods. |
1263 | record_method_not_compilable("out of memory"); |
1264 | } |
1265 | |
1266 | ciInstance* ciEnv::unloaded_ciinstance() { |
1267 | GUARDED_VM_ENTRY(return _factory->get_unloaded_object_constant();){if (ciEnv::is_in_vm()) { return _factory->get_unloaded_object_constant (); } else { CompilerThread* thread=CompilerThread::current() ; ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm( thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { return _factory->get_unloaded_object_constant() ; }}} |
1268 | } |
1269 | |
1270 | // ------------------------------------------------------------------ |
1271 | // Replay support |
1272 | |
1273 | |
1274 | // Lookup location descriptor for the class, if any. |
1275 | // Returns false if not found. |
1276 | bool ciEnv::dyno_loc(const InstanceKlass* ik, const char *&loc) const { |
1277 | bool found = false; |
1278 | int pos = _dyno_klasses->find_sorted<const InstanceKlass*, klass_compare>(ik, found); |
1279 | if (!found) { |
1280 | return false; |
1281 | } |
1282 | loc = _dyno_locs->at(pos); |
1283 | return found; |
1284 | } |
1285 | |
1286 | // Associate the current location descriptor with the given class and record for later lookup. |
1287 | void ciEnv::set_dyno_loc(const InstanceKlass* ik) { |
1288 | const char *loc = os::strdup(_dyno_name); |
1289 | bool found = false; |
1290 | int pos = _dyno_klasses->find_sorted<const InstanceKlass*, klass_compare>(ik, found); |
1291 | if (found) { |
1292 | _dyno_locs->at_put(pos, loc); |
1293 | } else { |
1294 | _dyno_klasses->insert_before(pos, ik); |
1295 | _dyno_locs->insert_before(pos, loc); |
1296 | } |
1297 | } |
1298 | |
1299 | // Associate the current location descriptor with the given class and record for later lookup. |
1300 | // If it turns out that there are multiple locations for the given class, that conflict should |
1301 | // be handled here. Currently we choose the first location found. |
1302 | void ciEnv::record_best_dyno_loc(const InstanceKlass* ik) { |
1303 | if (!ik->is_hidden()) { |
1304 | return; |
1305 | } |
1306 | const char *loc0; |
1307 | if (dyno_loc(ik, loc0)) { |
1308 | // TODO: found multiple references, see if we can improve |
1309 | if (Verbose) { |
1310 | tty->print_cr("existing call site @ %s for %s", |
1311 | loc0, ik->external_name()); |
1312 | } |
1313 | } else { |
1314 | set_dyno_loc(ik); |
1315 | } |
1316 | } |
1317 | |
1318 | // Look up the location descriptor for the given class and print it to the output stream. |
1319 | bool ciEnv::print_dyno_loc(outputStream* out, const InstanceKlass* ik) const { |
1320 | const char *loc; |
1321 | if (dyno_loc(ik, loc)) { |
1322 | out->print("%s", loc); |
1323 | return true; |
1324 | } else { |
1325 | return false; |
1326 | } |
1327 | } |
1328 | |
1329 | // Look up the location descriptor for the given class and return it as a string. |
1330 | // Returns NULL if no location is found. |
1331 | const char *ciEnv::dyno_name(const InstanceKlass* ik) const { |
1332 | if (ik->is_hidden()) { |
1333 | stringStream ss; |
1334 | if (print_dyno_loc(&ss, ik)) { |
1335 | ss.print(" ;"); // add terminator |
1336 | const char* call_site = ss.as_string(); |
1337 | return call_site; |
1338 | } |
1339 | } |
1340 | return NULL__null; |
1341 | } |
1342 | |
1343 | // Look up the location descriptor for the given class and return it as a string. |
1344 | // Returns the class name as a fallback if no location is found. |
1345 | const char *ciEnv::replay_name(ciKlass* k) const { |
1346 | if (k->is_instance_klass()) { |
1347 | return replay_name(k->as_instance_klass()->get_instanceKlass()); |
1348 | } |
1349 | return k->name()->as_quoted_ascii(); |
1350 | } |
1351 | |
1352 | // Look up the location descriptor for the given class and return it as a string. |
1353 | // Returns the class name as a fallback if no location is found. |
1354 | const char *ciEnv::replay_name(const InstanceKlass* ik) const { |
1355 | const char* name = dyno_name(ik); |
1356 | if (name != NULL__null) { |
1357 | return name; |
1358 | } |
1359 | return ik->name()->as_quoted_ascii(); |
1360 | } |
1361 | |
1362 | // Process a java.lang.invoke.MemberName object and record any dynamic locations. |
1363 | void ciEnv::record_member(Thread* thread, oop member) { |
1364 | assert(java_lang_invoke_MemberName::is_instance(member), "!")do { if (!(java_lang_invoke_MemberName::is_instance(member))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 1364, "assert(" "java_lang_invoke_MemberName::is_instance(member)" ") failed", "!"); ::breakpoint(); } } while (0); |
1365 | // Check MemberName.clazz field |
1366 | oop clazz = java_lang_invoke_MemberName::clazz(member); |
1367 | if (clazz->klass()->is_instance_klass()) { |
1368 | RecordLocation fp(this, "clazz"); |
1369 | InstanceKlass* ik = InstanceKlass::cast(clazz->klass()); |
1370 | record_best_dyno_loc(ik); |
1371 | } |
1372 | // Check MemberName.method.vmtarget field |
1373 | Method* vmtarget = java_lang_invoke_MemberName::vmtarget(member); |
1374 | if (vmtarget != NULL__null) { |
1375 | RecordLocation fp2(this, "<vmtarget>"); |
1376 | InstanceKlass* ik = vmtarget->method_holder(); |
1377 | record_best_dyno_loc(ik); |
1378 | } |
1379 | } |
1380 | |
1381 | // Read an object field. Lookup is done by name only. |
1382 | static inline oop obj_field(oop obj, const char* name) { |
1383 | return ciReplay::obj_field(obj, name); |
1384 | } |
1385 | |
1386 | // Process a java.lang.invoke.LambdaForm object and record any dynamic locations. |
1387 | void ciEnv::record_lambdaform(Thread* thread, oop form) { |
1388 | assert(java_lang_invoke_LambdaForm::is_instance(form), "!")do { if (!(java_lang_invoke_LambdaForm::is_instance(form))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 1388, "assert(" "java_lang_invoke_LambdaForm::is_instance(form)" ") failed", "!"); ::breakpoint(); } } while (0); |
1389 | |
1390 | { |
1391 | // Check LambdaForm.vmentry field |
1392 | oop member = java_lang_invoke_LambdaForm::vmentry(form); |
1393 | RecordLocation fp0(this, "vmentry"); |
1394 | record_member(thread, member); |
1395 | } |
1396 | |
1397 | // Check LambdaForm.names array |
1398 | objArrayOop names = (objArrayOop)obj_field(form, "names"); |
1399 | if (names != NULL__null) { |
1400 | RecordLocation lp0(this, "names"); |
1401 | int len = names->length(); |
1402 | for (int i = 0; i < len; ++i) { |
1403 | oop name = names->obj_at(i); |
1404 | RecordLocation lp1(this, "%d", i); |
1405 | // Check LambdaForm.names[i].function field |
1406 | RecordLocation lp2(this, "function"); |
1407 | oop function = obj_field(name, "function"); |
1408 | if (function != NULL__null) { |
1409 | // Check LambdaForm.names[i].function.member field |
1410 | oop member = obj_field(function, "member"); |
1411 | if (member != NULL__null) { |
1412 | RecordLocation lp3(this, "member"); |
1413 | record_member(thread, member); |
1414 | } |
1415 | // Check LambdaForm.names[i].function.resolvedHandle field |
1416 | oop mh = obj_field(function, "resolvedHandle"); |
1417 | if (mh != NULL__null) { |
1418 | RecordLocation lp3(this, "resolvedHandle"); |
1419 | record_mh(thread, mh); |
1420 | } |
1421 | // Check LambdaForm.names[i].function.invoker field |
1422 | oop invoker = obj_field(function, "invoker"); |
1423 | if (invoker != NULL__null) { |
1424 | RecordLocation lp3(this, "invoker"); |
1425 | record_mh(thread, invoker); |
1426 | } |
1427 | } |
1428 | } |
1429 | } |
1430 | } |
1431 | |
1432 | // Process a java.lang.invoke.MethodHandle object and record any dynamic locations. |
1433 | void ciEnv::record_mh(Thread* thread, oop mh) { |
1434 | { |
1435 | // Check MethodHandle.form field |
1436 | oop form = java_lang_invoke_MethodHandle::form(mh); |
1437 | RecordLocation fp(this, "form"); |
1438 | record_lambdaform(thread, form); |
1439 | } |
1440 | // Check DirectMethodHandle.member field |
1441 | if (java_lang_invoke_DirectMethodHandle::is_instance(mh)) { |
1442 | oop member = java_lang_invoke_DirectMethodHandle::member(mh); |
1443 | RecordLocation fp(this, "member"); |
1444 | record_member(thread, member); |
1445 | } else { |
1446 | // Check <MethodHandle subclass>.argL<n> fields |
1447 | // Probably BoundMethodHandle.Species_L*, but we only care if the field exists |
1448 | char arg_name[] = "argLXX"; |
1449 | int max_arg = 99; |
1450 | for (int index = 0; index <= max_arg; ++index) { |
1451 | jio_snprintf(arg_name, sizeof (arg_name), "argL%d", index); |
1452 | oop arg = obj_field(mh, arg_name); |
1453 | if (arg != NULL__null) { |
1454 | RecordLocation fp(this, "%s", arg_name); |
1455 | if (arg->klass()->is_instance_klass()) { |
1456 | InstanceKlass* ik2 = InstanceKlass::cast(arg->klass()); |
1457 | record_best_dyno_loc(ik2); |
1458 | record_call_site_obj(thread, arg); |
1459 | } |
1460 | } else { |
1461 | break; |
1462 | } |
1463 | } |
1464 | } |
1465 | } |
1466 | |
1467 | // Process an object found at an invokedynamic/invokehandle call site and record any dynamic locations. |
1468 | // Types currently supported are MethodHandle and CallSite. |
1469 | // The object is typically the "appendix" object, or Bootstrap Method (BSM) object. |
1470 | void ciEnv::record_call_site_obj(Thread* thread, oop obj) |
1471 | { |
1472 | if (obj != NULL__null) { |
1473 | if (java_lang_invoke_MethodHandle::is_instance(obj)) { |
1474 | record_mh(thread, obj); |
1475 | } else if (java_lang_invoke_ConstantCallSite::is_instance(obj)) { |
1476 | oop target = java_lang_invoke_CallSite::target(obj); |
1477 | if (target->klass()->is_instance_klass()) { |
1478 | RecordLocation fp(this, "target"); |
1479 | InstanceKlass* ik = InstanceKlass::cast(target->klass()); |
1480 | record_best_dyno_loc(ik); |
1481 | } |
1482 | } |
1483 | } |
1484 | } |
1485 | |
1486 | // Process an adapter Method* found at an invokedynamic/invokehandle call site and record any dynamic locations. |
1487 | void ciEnv::record_call_site_method(Thread* thread, Method* adapter) { |
1488 | InstanceKlass* holder = adapter->method_holder(); |
1489 | if (!holder->is_hidden()) { |
1490 | return; |
1491 | } |
1492 | RecordLocation fp(this, "<adapter>"); |
1493 | record_best_dyno_loc(holder); |
1494 | } |
1495 | |
1496 | // Process an invokedynamic call site and record any dynamic locations. |
1497 | void ciEnv::process_invokedynamic(const constantPoolHandle &cp, int indy_index, JavaThread* thread) { |
1498 | ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(indy_index); |
1499 | if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) { |
1500 | // process the adapter |
1501 | Method* adapter = cp_cache_entry->f1_as_method(); |
1502 | record_call_site_method(thread, adapter); |
1503 | // process the appendix |
1504 | oop appendix = cp_cache_entry->appendix_if_resolved(cp); |
1505 | { |
1506 | RecordLocation fp(this, "<appendix>"); |
1507 | record_call_site_obj(thread, appendix); |
1508 | } |
1509 | // process the BSM |
1510 | int pool_index = cp_cache_entry->constant_pool_index(); |
1511 | BootstrapInfo bootstrap_specifier(cp, pool_index, indy_index); |
1512 | oop bsm = cp->resolve_possibly_cached_constant_at(bootstrap_specifier.bsm_index(), thread); |
1513 | { |
1514 | RecordLocation fp(this, "<bsm>"); |
1515 | record_call_site_obj(thread, bsm); |
1516 | } |
1517 | } |
1518 | } |
1519 | |
1520 | // Process an invokehandle call site and record any dynamic locations. |
1521 | void ciEnv::process_invokehandle(const constantPoolHandle &cp, int index, JavaThread* thread) { |
1522 | const int holder_index = cp->klass_ref_index_at(index); |
1523 | if (!cp->tag_at(holder_index).is_klass()) { |
1524 | return; // not resolved |
1525 | } |
1526 | Klass* holder = ConstantPool::klass_at_if_loaded(cp, holder_index); |
1527 | Symbol* name = cp->name_ref_at(index); |
1528 | if (MethodHandles::is_signature_polymorphic_name(holder, name)) { |
1529 | ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); |
1530 | if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) { |
1531 | // process the adapter |
1532 | Method* adapter = cp_cache_entry->f1_as_method(); |
1533 | oop appendix = cp_cache_entry->appendix_if_resolved(cp); |
1534 | record_call_site_method(thread, adapter); |
1535 | // process the appendix |
1536 | { |
1537 | RecordLocation fp(this, "<appendix>"); |
1538 | record_call_site_obj(thread, appendix); |
1539 | } |
1540 | } |
1541 | } |
1542 | } |
1543 | |
1544 | // Search the class hierarchy for dynamic classes reachable through dynamic call sites or |
1545 | // constant pool entries and record for future lookup. |
1546 | void ciEnv::find_dynamic_call_sites() { |
1547 | _dyno_klasses = new (arena()) GrowableArray<const InstanceKlass*>(arena(), 100, 0, NULL__null); |
1548 | _dyno_locs = new (arena()) GrowableArray<const char *>(arena(), 100, 0, NULL__null); |
1549 | |
1550 | // Iterate over the class hierarchy |
1551 | for (ClassHierarchyIterator iter(vmClasses::Object_klass()); !iter.done(); iter.next()) { |
1552 | Klass* sub = iter.klass(); |
1553 | if (sub->is_instance_klass()) { |
1554 | InstanceKlass *isub = InstanceKlass::cast(sub); |
1555 | InstanceKlass* ik = isub; |
1556 | if (!ik->is_linked()) { |
1557 | continue; |
1558 | } |
1559 | if (ik->is_hidden()) { |
1560 | continue; |
1561 | } |
1562 | JavaThread* thread = JavaThread::current(); |
1563 | const constantPoolHandle pool(thread, ik->constants()); |
1564 | |
1565 | // Look for invokedynamic/invokehandle call sites |
1566 | for (int i = 0; i < ik->methods()->length(); ++i) { |
1567 | Method* m = ik->methods()->at(i); |
1568 | |
1569 | BytecodeStream bcs(methodHandle(thread, m)); |
1570 | while (!bcs.is_last_bytecode()) { |
1571 | Bytecodes::Code opcode = bcs.next(); |
1572 | opcode = bcs.raw_code(); |
1573 | switch (opcode) { |
1574 | case Bytecodes::_invokedynamic: |
1575 | case Bytecodes::_invokehandle: { |
1576 | RecordLocation fp(this, "@bci %s %s %s %d", |
1577 | ik->name()->as_quoted_ascii(), |
1578 | m->name()->as_quoted_ascii(), m->signature()->as_quoted_ascii(), |
1579 | bcs.bci()); |
1580 | if (opcode == Bytecodes::_invokedynamic) { |
1581 | int index = bcs.get_index_u4(); |
1582 | process_invokedynamic(pool, index, thread); |
1583 | } else { |
1584 | assert(opcode == Bytecodes::_invokehandle, "new switch label added?")do { if (!(opcode == Bytecodes::_invokehandle)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/ci/ciEnv.cpp" , 1584, "assert(" "opcode == Bytecodes::_invokehandle" ") failed" , "new switch label added?"); ::breakpoint(); } } while (0); |
1585 | int cp_cache_index = bcs.get_index_u2_cpcache(); |
1586 | process_invokehandle(pool, cp_cache_index, thread); |
1587 | } |
1588 | break; |
1589 | } |
1590 | default: |
1591 | break; |
1592 | } |
1593 | } |
1594 | } |
1595 | |
1596 | // Look for MethodHandle contant pool entries |
1597 | RecordLocation fp(this, "@cpi %s", ik->name()->as_quoted_ascii()); |
1598 | int len = pool->length(); |
1599 | for (int i = 0; i < len; ++i) { |
1600 | if (pool->tag_at(i).is_method_handle()) { |
1601 | bool found_it; |
1602 | oop mh = pool->find_cached_constant_at(i, found_it, thread); |
1603 | if (mh != NULL__null) { |
1604 | RecordLocation fp(this, "%d", i); |
1605 | record_mh(thread, mh); |
1606 | } |
1607 | } |
1608 | } |
1609 | } |
1610 | } |
1611 | } |
1612 | |
1613 | void ciEnv::dump_compile_data(outputStream* out) { |
1614 | CompileTask* task = this->task(); |
1615 | if (task) { |
1616 | Method* method = task->method(); |
1617 | int entry_bci = task->osr_bci(); |
1618 | int comp_level = task->comp_level(); |
1619 | out->print("compile "); |
1620 | get_method(method)->dump_name_as_ascii(out); |
1621 | out->print(" %d %d", entry_bci, comp_level); |
1622 | if (compiler_data() != NULL__null) { |
1623 | if (is_c2_compile(comp_level)) { |
1624 | #ifdef COMPILER21 |
1625 | // Dump C2 inlining data. |
1626 | ((Compile*)compiler_data())->dump_inline_data(out); |
1627 | #endif |
1628 | } else if (is_c1_compile(comp_level)) { |
1629 | #ifdef COMPILER11 |
1630 | // Dump C1 inlining data. |
1631 | ((Compilation*)compiler_data())->dump_inline_data(out); |
1632 | #endif |
1633 | } |
1634 | } |
1635 | out->cr(); |
1636 | } |
1637 | } |
1638 | |
1639 | // Called from VM error reporter, so be careful. |
1640 | // Don't safepoint or acquire any locks. |
1641 | // |
1642 | void ciEnv::dump_replay_data_helper(outputStream* out) { |
1643 | NoSafepointVerifier no_safepoint; |
1644 | ResourceMark rm; |
1645 | |
1646 | out->print_cr("version %d", REPLAY_VERSION2); |
1647 | #if INCLUDE_JVMTI1 |
1648 | out->print_cr("JvmtiExport can_access_local_variables %d", _jvmti_can_access_local_variables); |
1649 | out->print_cr("JvmtiExport can_hotswap_or_post_breakpoint %d", _jvmti_can_hotswap_or_post_breakpoint); |
1650 | out->print_cr("JvmtiExport can_post_on_exceptions %d", _jvmti_can_post_on_exceptions); |
1651 | #endif // INCLUDE_JVMTI |
1652 | |
1653 | find_dynamic_call_sites(); |
1654 | |
1655 | GrowableArray<ciMetadata*>* objects = _factory->get_ci_metadata(); |
1656 | out->print_cr("# %d ciObject found", objects->length()); |
1657 | |
1658 | // The very first entry is the InstanceKlass of the root method of the current compilation in order to get the right |
1659 | // protection domain to load subsequent classes during replay compilation. |
1660 | ciInstanceKlass::dump_replay_instanceKlass(out, task()->method()->method_holder()); |
1661 | |
1662 | for (int i = 0; i < objects->length(); i++) { |
1663 | objects->at(i)->dump_replay_data(out); |
1664 | } |
1665 | dump_compile_data(out); |
1666 | out->flush(); |
1667 | } |
1668 | |
1669 | // Called from VM error reporter, so be careful. |
1670 | // Don't safepoint or acquire any locks. |
1671 | // |
1672 | void ciEnv::dump_replay_data_unsafe(outputStream* out) { |
1673 | GUARDED_VM_ENTRY({if (ciEnv::is_in_vm()) { dump_replay_data_helper(out); } else { CompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { dump_replay_data_helper (out); }}} |
1674 | dump_replay_data_helper(out);{if (ciEnv::is_in_vm()) { dump_replay_data_helper(out); } else { CompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { dump_replay_data_helper (out); }}} |
1675 | ){if (ciEnv::is_in_vm()) { dump_replay_data_helper(out); } else { CompilerThread* thread=CompilerThread::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { dump_replay_data_helper (out); }}} |
1676 | } |
1677 | |
1678 | void ciEnv::dump_replay_data(outputStream* out) { |
1679 | GUARDED_VM_ENTRY({if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); } else { CompilerThread* thread=CompilerThread::current (); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm (thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); }}} |
1680 | MutexLocker ml(Compile_lock);{if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); } else { CompilerThread* thread=CompilerThread::current (); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm (thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); }}} |
1681 | dump_replay_data_helper(out);{if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); } else { CompilerThread* thread=CompilerThread::current (); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm (thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); }}} |
1682 | ){if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); } else { CompilerThread* thread=CompilerThread::current (); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm (thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_replay_data_helper (out); }}} |
1683 | } |
1684 | |
1685 | void ciEnv::dump_replay_data(int compile_id) { |
1686 | char buffer[64]; |
1687 | int ret = jio_snprintf(buffer, sizeof(buffer), "replay_pid%d_compid%d.log", os::current_process_id(), compile_id); |
1688 | if (ret > 0) { |
1689 | int fd = os::open(buffer, O_RDWR02 | O_CREAT0100 | O_TRUNC01000, 0666); |
1690 | if (fd != -1) { |
1691 | FILE* replay_data_file = os::open(fd, "w"); |
1692 | if (replay_data_file != NULL__null) { |
1693 | fileStream replay_data_stream(replay_data_file, /*need_close=*/true); |
1694 | dump_replay_data(&replay_data_stream); |
1695 | tty->print_cr("# Compiler replay data is saved as: %s", buffer); |
1696 | } else { |
1697 | tty->print_cr("# Can't open file to dump replay data."); |
1698 | } |
1699 | } |
1700 | } |
1701 | } |
1702 | |
1703 | void ciEnv::dump_inline_data(int compile_id) { |
1704 | char buffer[64]; |
1705 | int ret = jio_snprintf(buffer, sizeof(buffer), "inline_pid%d_compid%d.log", os::current_process_id(), compile_id); |
1706 | if (ret > 0) { |
1707 | int fd = os::open(buffer, O_RDWR02 | O_CREAT0100 | O_TRUNC01000, 0666); |
1708 | if (fd != -1) { |
1709 | FILE* inline_data_file = os::open(fd, "w"); |
1710 | if (inline_data_file != NULL__null) { |
1711 | fileStream replay_data_stream(inline_data_file, /*need_close=*/true); |
1712 | GUARDED_VM_ENTRY({if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_compile_data (&replay_data_stream); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_compile_data(& replay_data_stream); }}} |
1713 | MutexLocker ml(Compile_lock);{if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_compile_data (&replay_data_stream); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_compile_data(& replay_data_stream); }}} |
1714 | dump_compile_data(&replay_data_stream);{if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_compile_data (&replay_data_stream); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_compile_data(& replay_data_stream); }}} |
1715 | ){if (ciEnv::is_in_vm()) { MutexLocker ml(Compile_lock); dump_compile_data (&replay_data_stream); } else { CompilerThread* thread=CompilerThread ::current(); ThreadInVMfromNative __tiv(thread); HandleMarkCleaner __hm(thread); JavaThread* __the_thread__ = thread; VMNativeEntryWrapper __vew;; { MutexLocker ml(Compile_lock); dump_compile_data(& replay_data_stream); }}} |
1716 | replay_data_stream.flush(); |
1717 | tty->print("# Compiler inline data is saved as: "); |
1718 | tty->print_cr("%s", buffer); |
1719 | } else { |
1720 | tty->print_cr("# Can't open file to dump inline data."); |
1721 | } |
1722 | } |
1723 | } |
1724 | } |