Tue, 11 May 2010 14:35:43 -0700
6931180: Migration to recent versions of MS Platform SDK
6951582: Build problems on win64
Summary: Changes to enable building JDK7 with Microsoft Visual Studio 2010
Reviewed-by: ohair, art, ccheung, dcubed
1 /*
2 * Copyright 1999-2010 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
25 class CompileTask;
27 // ciEnv
28 //
29 // This class is the top level broker for requests from the compiler
30 // to the VM.
31 class ciEnv : StackObj {
32 CI_PACKAGE_ACCESS_TO
34 friend class CompileBroker;
35 friend class Dependencies; // for get_object, during logging
37 private:
38 Arena* _arena; // Alias for _ciEnv_arena except in init_shared_objects()
39 Arena _ciEnv_arena;
40 int _system_dictionary_modification_counter;
41 ciObjectFactory* _factory;
42 OopRecorder* _oop_recorder;
43 DebugInformationRecorder* _debug_info;
44 Dependencies* _dependencies;
45 const char* _failure_reason;
46 int _compilable;
47 bool _break_at_compile;
48 int _num_inlined_bytecodes;
49 CompileTask* _task; // faster access to CompilerThread::task
50 CompileLog* _log; // faster access to CompilerThread::log
51 void* _compiler_data; // compiler-specific stuff, if any
53 char* _name_buffer;
54 int _name_buffer_len;
56 // Cache Jvmti state
57 bool _jvmti_can_hotswap_or_post_breakpoint;
58 bool _jvmti_can_access_local_variables;
59 bool _jvmti_can_post_on_exceptions;
61 // Cache DTrace flags
62 bool _dtrace_extended_probes;
63 bool _dtrace_monitor_probes;
64 bool _dtrace_method_probes;
65 bool _dtrace_alloc_probes;
67 // Distinguished instances of certain ciObjects..
68 static ciObject* _null_object_instance;
69 static ciMethodKlass* _method_klass_instance;
70 static ciSymbolKlass* _symbol_klass_instance;
71 static ciKlassKlass* _klass_klass_instance;
72 static ciInstanceKlassKlass* _instance_klass_klass_instance;
73 static ciTypeArrayKlassKlass* _type_array_klass_klass_instance;
74 static ciObjArrayKlassKlass* _obj_array_klass_klass_instance;
76 #define WK_KLASS_DECL(name, ignore_s, ignore_o) static ciInstanceKlass* _##name;
77 WK_KLASSES_DO(WK_KLASS_DECL)
78 #undef WK_KLASS_DECL
80 static ciSymbol* _unloaded_cisymbol;
81 static ciInstanceKlass* _unloaded_ciinstance_klass;
82 static ciObjArrayKlass* _unloaded_ciobjarrayklass;
84 static jobject _ArrayIndexOutOfBoundsException_handle;
85 static jobject _ArrayStoreException_handle;
86 static jobject _ClassCastException_handle;
88 ciInstance* _NullPointerException_instance;
89 ciInstance* _ArithmeticException_instance;
90 ciInstance* _ArrayIndexOutOfBoundsException_instance;
91 ciInstance* _ArrayStoreException_instance;
92 ciInstance* _ClassCastException_instance;
94 ciInstance* _the_null_string; // The Java string "null"
95 ciInstance* _the_min_jint_string; // The Java string "-2147483648"
97 // Look up a klass by name from a particular class loader (the accessor's).
98 // If require_local, result must be defined in that class loader, or NULL.
99 // If !require_local, a result from remote class loader may be reported,
100 // if sufficient class loader constraints exist such that initiating
101 // a class loading request from the given loader is bound to return
102 // the class defined in the remote loader (or throw an error).
103 //
104 // Return an unloaded klass if !require_local and no class at all is found.
105 //
106 // The CI treats a klass as loaded if it is consistently defined in
107 // another loader, even if it hasn't yet been loaded in all loaders
108 // that could potentially see it via delegation.
109 ciKlass* get_klass_by_name(ciKlass* accessing_klass,
110 ciSymbol* klass_name,
111 bool require_local);
113 // Constant pool access.
114 ciKlass* get_klass_by_index(constantPoolHandle cpool,
115 int klass_index,
116 bool& is_accessible,
117 ciInstanceKlass* loading_klass);
118 ciConstant get_constant_by_index(constantPoolHandle cpool,
119 int constant_index,
120 ciInstanceKlass* accessor);
121 bool is_unresolved_string(ciInstanceKlass* loading_klass,
122 int constant_index) const;
123 bool is_unresolved_klass(ciInstanceKlass* loading_klass,
124 int constant_index) const;
125 ciField* get_field_by_index(ciInstanceKlass* loading_klass,
126 int field_index);
127 ciMethod* get_method_by_index(constantPoolHandle cpool,
128 int method_index, Bytecodes::Code bc,
129 ciInstanceKlass* loading_klass);
131 // Implementation methods for loading and constant pool access.
132 ciKlass* get_klass_by_name_impl(ciKlass* accessing_klass,
133 ciSymbol* klass_name,
134 bool require_local);
135 ciKlass* get_klass_by_index_impl(constantPoolHandle cpool,
136 int klass_index,
137 bool& is_accessible,
138 ciInstanceKlass* loading_klass);
139 ciConstant get_constant_by_index_impl(constantPoolHandle cpool,
140 int constant_index,
141 ciInstanceKlass* loading_klass);
142 bool is_unresolved_string_impl (instanceKlass* loading_klass,
143 int constant_index) const;
144 bool is_unresolved_klass_impl (instanceKlass* loading_klass,
145 int constant_index) const;
146 ciField* get_field_by_index_impl(ciInstanceKlass* loading_klass,
147 int field_index);
148 ciMethod* get_method_by_index_impl(constantPoolHandle cpool,
149 int method_index, Bytecodes::Code bc,
150 ciInstanceKlass* loading_klass);
151 ciMethod* get_fake_invokedynamic_method_impl(constantPoolHandle cpool,
152 int index, Bytecodes::Code bc);
154 // Helper methods
155 bool check_klass_accessibility(ciKlass* accessing_klass,
156 klassOop resolved_klassOop);
157 methodOop lookup_method(instanceKlass* accessor,
158 instanceKlass* holder,
159 symbolOop name,
160 symbolOop sig,
161 Bytecodes::Code bc);
163 // Get a ciObject from the object factory. Ensures uniqueness
164 // of ciObjects.
165 ciObject* get_object(oop o) {
166 if (o == NULL) {
167 return _null_object_instance;
168 } else {
169 return _factory->get(o);
170 }
171 }
173 ciMethod* get_method_from_handle(jobject method);
175 ciInstance* get_or_create_exception(jobject& handle, symbolHandle name);
177 // Get a ciMethod representing either an unfound method or
178 // a method with an unloaded holder. Ensures uniqueness of
179 // the result.
180 ciMethod* get_unloaded_method(ciInstanceKlass* holder,
181 ciSymbol* name,
182 ciSymbol* signature) {
183 return _factory->get_unloaded_method(holder, name, signature);
184 }
186 // Get a ciKlass representing an unloaded klass.
187 // Ensures uniqueness of the result.
188 ciKlass* get_unloaded_klass(ciKlass* accessing_klass,
189 ciSymbol* name) {
190 return _factory->get_unloaded_klass(accessing_klass, name, true);
191 }
193 // See if we already have an unloaded klass for the given name
194 // or return NULL if not.
195 ciKlass *check_get_unloaded_klass(ciKlass* accessing_klass, ciSymbol* name) {
196 return _factory->get_unloaded_klass(accessing_klass, name, false);
197 }
199 // Get a ciReturnAddress corresponding to the given bci.
200 // Ensures uniqueness of the result.
201 ciReturnAddress* get_return_address(int bci) {
202 return _factory->get_return_address(bci);
203 }
205 // Get a ciMethodData representing the methodData for a method
206 // with none.
207 ciMethodData* get_empty_methodData() {
208 return _factory->get_empty_methodData();
209 }
211 // General utility : get a buffer of some required length.
212 // Used in symbol creation.
213 char* name_buffer(int req_len);
215 // Is this thread currently in the VM state?
216 static bool is_in_vm();
218 // Helper routine for determining the validity of a compilation
219 // with respect to concurrent class loading.
220 void check_for_system_dictionary_modification(ciMethod* target);
222 public:
223 enum {
224 MethodCompilable,
225 MethodCompilable_not_at_tier,
226 MethodCompilable_never
227 };
229 ciEnv(CompileTask* task, int system_dictionary_modification_counter);
230 // Used only during initialization of the ci
231 ciEnv(Arena* arena);
232 ~ciEnv();
234 OopRecorder* oop_recorder() { return _oop_recorder; }
235 void set_oop_recorder(OopRecorder* r) { _oop_recorder = r; }
237 DebugInformationRecorder* debug_info() { return _debug_info; }
238 void set_debug_info(DebugInformationRecorder* i) { _debug_info = i; }
240 Dependencies* dependencies() { return _dependencies; }
241 void set_dependencies(Dependencies* d) { _dependencies = d; }
243 // This is true if the compilation is not going to produce code.
244 // (It is reasonable to retry failed compilations.)
245 bool failing() { return _failure_reason != NULL; }
247 // Reason this compilation is failing, such as "too many basic blocks".
248 const char* failure_reason() { return _failure_reason; }
250 // Return state of appropriate compilability
251 int compilable() { return _compilable; }
253 bool break_at_compile() { return _break_at_compile; }
254 void set_break_at_compile(bool z) { _break_at_compile = z; }
256 // Cache Jvmti state
257 void cache_jvmti_state();
258 bool jvmti_can_hotswap_or_post_breakpoint() const { return _jvmti_can_hotswap_or_post_breakpoint; }
259 bool jvmti_can_access_local_variables() const { return _jvmti_can_access_local_variables; }
260 bool jvmti_can_post_on_exceptions() const { return _jvmti_can_post_on_exceptions; }
262 // Cache DTrace flags
263 void cache_dtrace_flags();
264 bool dtrace_extended_probes() const { return _dtrace_extended_probes; }
265 bool dtrace_monitor_probes() const { return _dtrace_monitor_probes; }
266 bool dtrace_method_probes() const { return _dtrace_method_probes; }
267 bool dtrace_alloc_probes() const { return _dtrace_alloc_probes; }
269 // The compiler task which has created this env.
270 // May be useful to find out compile_id, comp_level, etc.
271 CompileTask* task() { return _task; }
272 // Handy forwards to the task:
273 int comp_level(); // task()->comp_level()
274 uint compile_id(); // task()->compile_id()
276 // Register the result of a compilation.
277 void register_method(ciMethod* target,
278 int entry_bci,
279 CodeOffsets* offsets,
280 int orig_pc_offset,
281 CodeBuffer* code_buffer,
282 int frame_words,
283 OopMapSet* oop_map_set,
284 ExceptionHandlerTable* handler_table,
285 ImplicitExceptionTable* inc_table,
286 AbstractCompiler* compiler,
287 int comp_level,
288 bool has_debug_info = true,
289 bool has_unsafe_access = false);
292 // Access to certain well known ciObjects.
293 #define WK_KLASS_FUNC(name, ignore_s, ignore_o) \
294 ciInstanceKlass* name() { \
295 return _##name;\
296 }
297 WK_KLASSES_DO(WK_KLASS_FUNC)
298 #undef WK_KLASS_FUNC
300 ciInstance* NullPointerException_instance() {
301 assert(_NullPointerException_instance != NULL, "initialization problem");
302 return _NullPointerException_instance;
303 }
304 ciInstance* ArithmeticException_instance() {
305 assert(_ArithmeticException_instance != NULL, "initialization problem");
306 return _ArithmeticException_instance;
307 }
309 // Lazy constructors:
310 ciInstance* ArrayIndexOutOfBoundsException_instance();
311 ciInstance* ArrayStoreException_instance();
312 ciInstance* ClassCastException_instance();
314 ciInstance* the_null_string();
315 ciInstance* the_min_jint_string();
317 static ciSymbol* unloaded_cisymbol() {
318 return _unloaded_cisymbol;
319 }
320 static ciObjArrayKlass* unloaded_ciobjarrayklass() {
321 return _unloaded_ciobjarrayklass;
322 }
323 static ciInstanceKlass* unloaded_ciinstance_klass() {
324 return _unloaded_ciinstance_klass;
325 }
327 ciKlass* find_system_klass(ciSymbol* klass_name);
328 // Note: To find a class from its name string, use ciSymbol::make,
329 // but consider adding to vmSymbols.hpp instead.
331 // Use this to make a holder for non-perm compile time constants.
332 // The resulting array is guaranteed to satisfy "can_be_constant".
333 ciArray* make_system_array(GrowableArray<ciObject*>* objects);
335 // converts the ciKlass* representing the holder of a method into a
336 // ciInstanceKlass*. This is needed since the holder of a method in
337 // the bytecodes could be an array type. Basically this converts
338 // array types into java/lang/Object and other types stay as they are.
339 static ciInstanceKlass* get_instance_klass_for_declared_method_holder(ciKlass* klass);
341 // Return the machine-level offset of o, which must be an element of a.
342 // This may be used to form constant-loading expressions in lieu of simpler encodings.
343 int array_element_offset_in_bytes(ciArray* a, ciObject* o);
345 // Access to the compile-lifetime allocation arena.
346 Arena* arena() { return _arena; }
348 // What is the current compilation environment?
349 static ciEnv* current() { return CompilerThread::current()->env(); }
351 // Overload with current thread argument
352 static ciEnv* current(CompilerThread *thread) { return thread->env(); }
354 // Per-compiler data. (Used by C2 to publish the Compile* pointer.)
355 void* compiler_data() { return _compiler_data; }
356 void set_compiler_data(void* x) { _compiler_data = x; }
358 // Notice that a method has been inlined in the current compile;
359 // used only for statistics.
360 void notice_inlined_method(ciMethod* method);
362 // Total number of bytecodes in inlined methods in this compile
363 int num_inlined_bytecodes() const;
365 // Output stream for logging compilation info.
366 CompileLog* log() { return _log; }
367 void set_log(CompileLog* log) { _log = log; }
369 // Check for changes to the system dictionary during compilation
370 bool system_dictionary_modification_counter_changed();
372 void record_failure(const char* reason);
373 void record_method_not_compilable(const char* reason, bool all_tiers = true);
374 void record_out_of_memory_failure();
375 };