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annotate src/share/vm/opto/runtime.hpp @ 3334:b21ecca7ccc4
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Reviewed-by: kvn, never
author | twisti |
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date | Mon, 02 May 2011 00:55:09 -0700 |
parents | f95d63e2154a |
children | 263247c478c5 |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_OPTO_RUNTIME_HPP |
26 #define SHARE_VM_OPTO_RUNTIME_HPP | |
27 | |
28 #include "code/codeBlob.hpp" | |
29 #include "opto/machnode.hpp" | |
30 #include "opto/type.hpp" | |
31 #include "runtime/biasedLocking.hpp" | |
32 #include "runtime/deoptimization.hpp" | |
33 #include "runtime/vframe.hpp" | |
34 | |
0 | 35 //------------------------------OptoRuntime------------------------------------ |
36 // Opto compiler runtime routines | |
37 // | |
38 // These are all generated from Ideal graphs. They are called with the | |
39 // Java calling convention. Internally they call C++. They are made once at | |
40 // startup time and Opto compiles calls to them later. | |
41 // Things are broken up into quads: the signature they will be called with, | |
42 // the address of the generated code, the corresponding C++ code and an | |
43 // nmethod. | |
44 | |
45 // The signature (returned by "xxx_Type()") is used at startup time by the | |
46 // Generator to make the generated code "xxx_Java". Opto compiles calls | |
47 // to the generated code "xxx_Java". When the compiled code gets executed, | |
48 // it calls the C++ code "xxx_C". The generated nmethod is saved in the | |
49 // CodeCache. Exception handlers use the nmethod to get the callee-save | |
50 // register OopMaps. | |
51 class CallInfo; | |
52 | |
53 // | |
54 // NamedCounters are tagged counters which can be used for profiling | |
55 // code in various ways. Currently they are used by the lock coarsening code | |
56 // | |
57 | |
58 class NamedCounter : public CHeapObj { | |
59 public: | |
60 enum CounterTag { | |
61 NoTag, | |
62 LockCounter, | |
63 EliminatedLockCounter, | |
64 BiasedLockingCounter | |
65 }; | |
66 | |
67 private: | |
68 const char * _name; | |
69 int _count; | |
70 CounterTag _tag; | |
71 NamedCounter* _next; | |
72 | |
73 public: | |
74 NamedCounter(const char *n, CounterTag tag = NoTag): | |
75 _name(n), | |
76 _count(0), | |
77 _next(NULL), | |
78 _tag(tag) {} | |
79 | |
80 const char * name() const { return _name; } | |
81 int count() const { return _count; } | |
82 address addr() { return (address)&_count; } | |
83 CounterTag tag() const { return _tag; } | |
84 void set_tag(CounterTag tag) { _tag = tag; } | |
85 | |
86 NamedCounter* next() const { return _next; } | |
87 void set_next(NamedCounter* next) { | |
88 assert(_next == NULL, "already set"); | |
89 _next = next; | |
90 } | |
91 | |
92 }; | |
93 | |
94 class BiasedLockingNamedCounter : public NamedCounter { | |
95 private: | |
96 BiasedLockingCounters _counters; | |
97 | |
98 public: | |
99 BiasedLockingNamedCounter(const char *n) : | |
100 NamedCounter(n, BiasedLockingCounter), _counters() {} | |
101 | |
102 BiasedLockingCounters* counters() { return &_counters; } | |
103 }; | |
104 | |
105 typedef const TypeFunc*(*TypeFunc_generator)(); | |
106 | |
107 class OptoRuntime : public AllStatic { | |
108 friend class Matcher; // allow access to stub names | |
109 | |
110 private: | |
111 // define stubs | |
112 static address generate_stub(ciEnv* ci_env, TypeFunc_generator gen, address C_function, const char *name, int is_fancy_jump, bool pass_tls, bool save_arguments, bool return_pc); | |
113 | |
114 // References to generated stubs | |
115 static address _new_instance_Java; | |
116 static address _new_array_Java; | |
117 static address _multianewarray2_Java; | |
118 static address _multianewarray3_Java; | |
119 static address _multianewarray4_Java; | |
120 static address _multianewarray5_Java; | |
342 | 121 static address _g1_wb_pre_Java; |
122 static address _g1_wb_post_Java; | |
0 | 123 static address _vtable_must_compile_Java; |
124 static address _complete_monitor_locking_Java; | |
125 static address _rethrow_Java; | |
126 | |
127 static address _slow_arraycopy_Java; | |
128 static address _register_finalizer_Java; | |
129 | |
130 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
131 static address _zap_dead_Java_locals_Java; | |
132 static address _zap_dead_native_locals_Java; | |
133 # endif | |
134 | |
135 | |
136 // | |
137 // Implementation of runtime methods | |
138 // ================================= | |
139 | |
140 // Allocate storage for a Java instance. | |
141 static void new_instance_C(klassOopDesc* instance_klass, JavaThread *thread); | |
142 | |
143 // Allocate storage for a objArray or typeArray | |
144 static void new_array_C(klassOopDesc* array_klass, int len, JavaThread *thread); | |
145 | |
1166 | 146 // Post-slow-path-allocation, pre-initializing-stores step for |
147 // implementing ReduceInitialCardMarks | |
148 static void new_store_pre_barrier(JavaThread* thread); | |
0 | 149 |
150 // Allocate storage for a multi-dimensional arrays | |
151 // Note: needs to be fixed for arbitrary number of dimensions | |
152 static void multianewarray2_C(klassOopDesc* klass, int len1, int len2, JavaThread *thread); | |
153 static void multianewarray3_C(klassOopDesc* klass, int len1, int len2, int len3, JavaThread *thread); | |
154 static void multianewarray4_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, JavaThread *thread); | |
155 static void multianewarray5_C(klassOopDesc* klass, int len1, int len2, int len3, int len4, int len5, JavaThread *thread); | |
342 | 156 static void g1_wb_pre_C(oopDesc* orig, JavaThread* thread); |
157 static void g1_wb_post_C(void* card_addr, JavaThread* thread); | |
0 | 158 |
159 public: | |
160 // Slow-path Locking and Unlocking | |
161 static void complete_monitor_locking_C(oopDesc* obj, BasicLock* lock, JavaThread* thread); | |
162 static void complete_monitor_unlocking_C(oopDesc* obj, BasicLock* lock); | |
163 | |
164 private: | |
165 | |
166 // Implicit exception support | |
167 static void throw_null_exception_C(JavaThread* thread); | |
168 | |
169 // Exception handling | |
170 static address handle_exception_C (JavaThread* thread); | |
171 static address handle_exception_C_helper(JavaThread* thread, nmethod*& nm); | |
172 static address rethrow_C (oopDesc* exception, JavaThread *thread, address return_pc ); | |
173 static void deoptimize_caller_frame (JavaThread *thread, bool doit); | |
174 | |
175 // CodeBlob support | |
176 // =================================================================== | |
177 | |
178 static ExceptionBlob* _exception_blob; | |
179 static void generate_exception_blob(); | |
180 | |
181 static void register_finalizer(oopDesc* obj, JavaThread* thread); | |
182 | |
183 // zaping dead locals, either from Java frames or from native frames | |
184 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
185 static void zap_dead_Java_locals_C( JavaThread* thread); | |
186 static void zap_dead_native_locals_C( JavaThread* thread); | |
187 | |
188 static void zap_dead_java_or_native_locals( JavaThread*, bool (*)(frame*)); | |
189 | |
190 public: | |
191 static int ZapDeadCompiledLocals_count; | |
192 | |
193 # endif | |
194 | |
195 | |
196 public: | |
197 | |
198 static bool is_callee_saved_register(MachRegisterNumbers reg); | |
199 | |
200 // One time only generate runtime code stubs | |
201 static void generate(ciEnv* env); | |
202 | |
203 // Returns the name of a stub | |
204 static const char* stub_name(address entry); | |
205 | |
206 // access to runtime stubs entry points for java code | |
207 static address new_instance_Java() { return _new_instance_Java; } | |
208 static address new_array_Java() { return _new_array_Java; } | |
209 static address multianewarray2_Java() { return _multianewarray2_Java; } | |
210 static address multianewarray3_Java() { return _multianewarray3_Java; } | |
211 static address multianewarray4_Java() { return _multianewarray4_Java; } | |
212 static address multianewarray5_Java() { return _multianewarray5_Java; } | |
342 | 213 static address g1_wb_pre_Java() { return _g1_wb_pre_Java; } |
214 static address g1_wb_post_Java() { return _g1_wb_post_Java; } | |
0 | 215 static address vtable_must_compile_stub() { return _vtable_must_compile_Java; } |
216 static address complete_monitor_locking_Java() { return _complete_monitor_locking_Java; } | |
217 | |
218 static address slow_arraycopy_Java() { return _slow_arraycopy_Java; } | |
219 static address register_finalizer_Java() { return _register_finalizer_Java; } | |
220 | |
221 | |
222 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
223 static address zap_dead_locals_stub(bool is_native) { return is_native | |
224 ? _zap_dead_native_locals_Java | |
225 : _zap_dead_Java_locals_Java; } | |
226 static MachNode* node_to_call_zap_dead_locals(Node* n, int block_num, bool is_native); | |
227 # endif | |
228 | |
229 static ExceptionBlob* exception_blob() { return _exception_blob; } | |
230 | |
231 // Leaf routines helping with method data update | |
232 static void profile_receiver_type_C(DataLayout* data, oopDesc* receiver); | |
233 | |
234 // Implicit exception support | |
235 static void throw_div0_exception_C (JavaThread* thread); | |
236 static void throw_stack_overflow_error_C(JavaThread* thread); | |
237 | |
238 // Exception handling | |
239 static address rethrow_stub() { return _rethrow_Java; } | |
240 | |
241 | |
242 // Type functions | |
243 // ====================================================== | |
244 | |
245 static const TypeFunc* new_instance_Type(); // object allocation (slow case) | |
246 static const TypeFunc* new_array_Type (); // [a]newarray (slow case) | |
247 static const TypeFunc* multianewarray_Type(int ndim); // multianewarray | |
248 static const TypeFunc* multianewarray2_Type(); // multianewarray | |
249 static const TypeFunc* multianewarray3_Type(); // multianewarray | |
250 static const TypeFunc* multianewarray4_Type(); // multianewarray | |
251 static const TypeFunc* multianewarray5_Type(); // multianewarray | |
342 | 252 static const TypeFunc* g1_wb_pre_Type(); |
253 static const TypeFunc* g1_wb_post_Type(); | |
0 | 254 static const TypeFunc* complete_monitor_enter_Type(); |
255 static const TypeFunc* complete_monitor_exit_Type(); | |
256 static const TypeFunc* uncommon_trap_Type(); | |
257 static const TypeFunc* athrow_Type(); | |
258 static const TypeFunc* rethrow_Type(); | |
259 static const TypeFunc* Math_D_D_Type(); // sin,cos & friends | |
260 static const TypeFunc* Math_DD_D_Type(); // mod,pow & friends | |
261 static const TypeFunc* modf_Type(); | |
262 static const TypeFunc* l2f_Type(); | |
263 static const TypeFunc* current_time_millis_Type(); | |
264 | |
265 static const TypeFunc* flush_windows_Type(); | |
266 | |
267 // arraycopy routine types | |
268 static const TypeFunc* fast_arraycopy_Type(); // bit-blasters | |
269 static const TypeFunc* checkcast_arraycopy_Type(); | |
270 static const TypeFunc* generic_arraycopy_Type(); | |
271 static const TypeFunc* slow_arraycopy_Type(); // the full routine | |
272 | |
1763 | 273 static const TypeFunc* array_fill_Type(); |
274 | |
0 | 275 // leaf on stack replacement interpreter accessor types |
276 static const TypeFunc* osr_end_Type(); | |
277 | |
278 // leaf methodData routine types | |
279 static const TypeFunc* profile_receiver_type_Type(); | |
280 | |
281 // leaf on stack replacement interpreter accessor types | |
282 static const TypeFunc* fetch_int_Type(); | |
283 static const TypeFunc* fetch_long_Type(); | |
284 static const TypeFunc* fetch_float_Type(); | |
285 static const TypeFunc* fetch_double_Type(); | |
286 static const TypeFunc* fetch_oop_Type(); | |
287 static const TypeFunc* fetch_monitor_Type(); | |
288 | |
289 static const TypeFunc* register_finalizer_Type(); | |
290 | |
291 // Dtrace support | |
292 static const TypeFunc* dtrace_method_entry_exit_Type(); | |
293 static const TypeFunc* dtrace_object_alloc_Type(); | |
294 | |
295 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
296 static const TypeFunc* zap_dead_locals_Type(); | |
297 # endif | |
298 | |
299 private: | |
300 static NamedCounter * volatile _named_counters; | |
301 | |
302 public: | |
303 // helper function which creates a named counter labeled with the | |
304 // if they are available | |
305 static NamedCounter* new_named_counter(JVMState* jvms, NamedCounter::CounterTag tag); | |
306 | |
307 // dumps all the named counters | |
308 static void print_named_counters(); | |
309 | |
310 }; | |
1972 | 311 |
312 #endif // SHARE_VM_OPTO_RUNTIME_HPP |