Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/frame.hpp @ 4712:e7dead7e90af
7117303: VM uses non-monotonic time source and complains that it is non-monotonic
Summary: Replaces calls to os::javaTimeMillis(), which does not (and cannot) guarantee monotonicity, in GC code to an equivalent expression that uses os::javaTimeNanos(). os::javaTimeNanos is guaranteed monotonically non-decreasing if the underlying platform provides a monotonic time source. Changes in OS files are to make use of the newly defined constants in globalDefinitions.hpp.
Reviewed-by: dholmes, ysr
author | johnc |
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date | Mon, 19 Dec 2011 10:02:05 -0800 |
parents | b20d64f83668 |
children | 3dbcd1013cc8 eaa9557116a2 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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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_RUNTIME_FRAME_HPP |
26 #define SHARE_VM_RUNTIME_FRAME_HPP | |
27 | |
28 #include "asm/assembler.hpp" | |
29 #include "oops/methodOop.hpp" | |
30 #include "runtime/basicLock.hpp" | |
31 #include "runtime/monitorChunk.hpp" | |
32 #include "runtime/registerMap.hpp" | |
33 #include "utilities/top.hpp" | |
34 #ifdef COMPILER2 | |
35 #ifdef TARGET_ARCH_MODEL_x86_32 | |
36 # include "adfiles/adGlobals_x86_32.hpp" | |
37 #endif | |
38 #ifdef TARGET_ARCH_MODEL_x86_64 | |
39 # include "adfiles/adGlobals_x86_64.hpp" | |
40 #endif | |
41 #ifdef TARGET_ARCH_MODEL_sparc | |
42 # include "adfiles/adGlobals_sparc.hpp" | |
43 #endif | |
44 #ifdef TARGET_ARCH_MODEL_zero | |
45 # include "adfiles/adGlobals_zero.hpp" | |
46 #endif | |
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47 #ifdef TARGET_ARCH_MODEL_arm |
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48 # include "adfiles/adGlobals_arm.hpp" |
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49 #endif |
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50 #ifdef TARGET_ARCH_MODEL_ppc |
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51 # include "adfiles/adGlobals_ppc.hpp" |
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52 #endif |
1972 | 53 #endif |
54 #ifdef ZERO | |
55 #ifdef TARGET_ARCH_zero | |
56 # include "stack_zero.hpp" | |
57 #endif | |
58 #endif | |
59 | |
0 | 60 typedef class BytecodeInterpreter* interpreterState; |
61 | |
62 class CodeBlob; | |
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63 class FrameValues; |
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64 class vframeArray; |
0 | 65 |
66 | |
67 // A frame represents a physical stack frame (an activation). Frames | |
68 // can be C or Java frames, and the Java frames can be interpreted or | |
69 // compiled. In contrast, vframes represent source-level activations, | |
70 // so that one physical frame can correspond to multiple source level | |
71 // frames because of inlining. | |
72 | |
73 class frame VALUE_OBJ_CLASS_SPEC { | |
74 private: | |
75 // Instance variables: | |
76 intptr_t* _sp; // stack pointer (from Thread::last_Java_sp) | |
77 address _pc; // program counter (the next instruction after the call) | |
78 | |
79 CodeBlob* _cb; // CodeBlob that "owns" pc | |
80 enum deopt_state { | |
81 not_deoptimized, | |
82 is_deoptimized, | |
83 unknown | |
84 }; | |
85 | |
86 deopt_state _deopt_state; | |
87 | |
88 public: | |
89 // Constructors | |
90 frame(); | |
91 | |
92 // Accessors | |
93 | |
94 // pc: Returns the pc at which this frame will continue normally. | |
95 // It must point at the beginning of the next instruction to execute. | |
96 address pc() const { return _pc; } | |
97 | |
98 // This returns the pc that if you were in the debugger you'd see. Not | |
99 // the idealized value in the frame object. This undoes the magic conversion | |
100 // that happens for deoptimized frames. In addition it makes the value the | |
101 // hardware would want to see in the native frame. The only user (at this point) | |
102 // is deoptimization. It likely no one else should ever use it. | |
103 address raw_pc() const; | |
104 | |
105 void set_pc( address newpc ); | |
106 | |
107 intptr_t* sp() const { return _sp; } | |
108 void set_sp( intptr_t* newsp ) { _sp = newsp; } | |
109 | |
110 | |
111 CodeBlob* cb() const { return _cb; } | |
112 | |
113 // patching operations | |
114 void patch_pc(Thread* thread, address pc); | |
115 | |
116 // Every frame needs to return a unique id which distinguishes it from all other frames. | |
117 // For sparc and ia32 use sp. ia64 can have memory frames that are empty so multiple frames | |
118 // will have identical sp values. For ia64 the bsp (fp) value will serve. No real frame | |
119 // should have an id() of NULL so it is a distinguishing value for an unmatchable frame. | |
120 // We also have relationals which allow comparing a frame to anoth frame's id() allow | |
121 // us to distinguish younger (more recent activation) from older (less recent activations) | |
122 // A NULL id is only valid when comparing for equality. | |
123 | |
124 intptr_t* id(void) const; | |
125 bool is_younger(intptr_t* id) const; | |
126 bool is_older(intptr_t* id) const; | |
127 | |
128 // testers | |
129 | |
130 // Compares for strict equality. Rarely used or needed. | |
131 // It can return a different result than f1.id() == f2.id() | |
132 bool equal(frame other) const; | |
133 | |
134 // type testers | |
135 bool is_interpreted_frame() const; | |
136 bool is_java_frame() const; | |
137 bool is_entry_frame() const; // Java frame called from C? | |
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138 bool is_ricochet_frame() const; |
0 | 139 bool is_native_frame() const; |
140 bool is_runtime_frame() const; | |
141 bool is_compiled_frame() const; | |
142 bool is_safepoint_blob_frame() const; | |
143 bool is_deoptimized_frame() const; | |
144 | |
145 // testers | |
146 bool is_first_frame() const; // oldest frame? (has no sender) | |
147 bool is_first_java_frame() const; // same for Java frame | |
148 | |
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149 bool is_interpreted_frame_valid(JavaThread* thread) const; // performs sanity checks on interpreted frames. |
0 | 150 |
151 // tells whether this frame is marked for deoptimization | |
152 bool should_be_deoptimized() const; | |
153 | |
154 // tells whether this frame can be deoptimized | |
155 bool can_be_deoptimized() const; | |
156 | |
157 // returns the frame size in stack slots | |
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158 int frame_size(RegisterMap* map) const; |
0 | 159 |
160 // returns the sending frame | |
161 frame sender(RegisterMap* map) const; | |
162 | |
163 // for Profiling - acting on another frame. walks sender frames | |
164 // if valid. | |
165 frame profile_find_Java_sender_frame(JavaThread *thread); | |
166 bool safe_for_sender(JavaThread *thread); | |
167 | |
168 // returns the sender, but skips conversion frames | |
169 frame real_sender(RegisterMap* map) const; | |
170 | |
171 // returns the the sending Java frame, skipping any intermediate C frames | |
172 // NB: receiver must not be first frame | |
173 frame java_sender() const; | |
174 | |
175 private: | |
176 // Helper methods for better factored code in frame::sender | |
177 frame sender_for_compiled_frame(RegisterMap* map) const; | |
178 frame sender_for_entry_frame(RegisterMap* map) const; | |
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179 frame sender_for_ricochet_frame(RegisterMap* map) const; |
0 | 180 frame sender_for_interpreter_frame(RegisterMap* map) const; |
181 frame sender_for_native_frame(RegisterMap* map) const; | |
182 | |
183 // All frames: | |
184 | |
185 // A low-level interface for vframes: | |
186 | |
187 public: | |
188 | |
189 intptr_t* addr_at(int index) const { return &fp()[index]; } | |
190 intptr_t at(int index) const { return *addr_at(index); } | |
191 | |
192 // accessors for locals | |
193 oop obj_at(int offset) const { return *obj_at_addr(offset); } | |
194 void obj_at_put(int offset, oop value) { *obj_at_addr(offset) = value; } | |
195 | |
196 jint int_at(int offset) const { return *int_at_addr(offset); } | |
197 void int_at_put(int offset, jint value) { *int_at_addr(offset) = value; } | |
198 | |
199 oop* obj_at_addr(int offset) const { return (oop*) addr_at(offset); } | |
200 | |
201 oop* adjusted_obj_at_addr(methodOop method, int index) { return obj_at_addr(adjust_offset(method, index)); } | |
202 | |
203 private: | |
204 jint* int_at_addr(int offset) const { return (jint*) addr_at(offset); } | |
205 | |
206 public: | |
207 // Link (i.e., the pointer to the previous frame) | |
208 intptr_t* link() const; | |
209 void set_link(intptr_t* addr); | |
210 | |
211 // Return address | |
212 address sender_pc() const; | |
213 | |
214 // Support for deoptimization | |
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215 void deoptimize(JavaThread* thread); |
0 | 216 |
217 // The frame's original SP, before any extension by an interpreted callee; | |
218 // used for packing debug info into vframeArray objects and vframeArray lookup. | |
219 intptr_t* unextended_sp() const; | |
220 | |
221 // returns the stack pointer of the calling frame | |
222 intptr_t* sender_sp() const; | |
223 | |
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224 // Deoptimization info, if needed (platform dependent). |
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225 // Stored in the initial_info field of the unroll info, to be used by |
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226 // the platform dependent deoptimization blobs. |
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227 intptr_t *initial_deoptimization_info(); |
0 | 228 |
229 // Interpreter frames: | |
230 | |
231 private: | |
232 intptr_t** interpreter_frame_locals_addr() const; | |
233 intptr_t* interpreter_frame_bcx_addr() const; | |
234 intptr_t* interpreter_frame_mdx_addr() const; | |
235 | |
236 public: | |
237 // Locals | |
238 | |
239 // The _at version returns a pointer because the address is used for GC. | |
240 intptr_t* interpreter_frame_local_at(int index) const; | |
241 | |
242 void interpreter_frame_set_locals(intptr_t* locs); | |
243 | |
244 // byte code index/pointer (use these functions for unchecked frame access only!) | |
245 intptr_t interpreter_frame_bcx() const { return *interpreter_frame_bcx_addr(); } | |
246 void interpreter_frame_set_bcx(intptr_t bcx); | |
247 | |
248 // byte code index | |
249 jint interpreter_frame_bci() const; | |
250 void interpreter_frame_set_bci(jint bci); | |
251 | |
252 // byte code pointer | |
253 address interpreter_frame_bcp() const; | |
254 void interpreter_frame_set_bcp(address bcp); | |
255 | |
256 // Unchecked access to the method data index/pointer. | |
257 // Only use this if you know what you are doing. | |
258 intptr_t interpreter_frame_mdx() const { return *interpreter_frame_mdx_addr(); } | |
259 void interpreter_frame_set_mdx(intptr_t mdx); | |
260 | |
261 // method data pointer | |
262 address interpreter_frame_mdp() const; | |
263 void interpreter_frame_set_mdp(address dp); | |
264 | |
265 // Find receiver out of caller's (compiled) argument list | |
266 oop retrieve_receiver(RegisterMap *reg_map); | |
267 | |
268 // Return the monitor owner and BasicLock for compiled synchronized | |
269 // native methods so that biased locking can revoke the receiver's | |
2019 | 270 // bias if necessary. This is also used by JVMTI's GetLocalInstance method |
271 // (via VM_GetReceiver) to retrieve the receiver from a native wrapper frame. | |
272 BasicLock* get_native_monitor(); | |
273 oop get_native_receiver(); | |
0 | 274 |
275 // Find receiver for an invoke when arguments are just pushed on stack (i.e., callee stack-frame is | |
276 // not setup) | |
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277 oop interpreter_callee_receiver(Symbol* signature) { return *interpreter_callee_receiver_addr(signature); } |
0 | 278 |
279 | |
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280 oop* interpreter_callee_receiver_addr(Symbol* signature); |
0 | 281 |
282 | |
283 // expression stack (may go up or down, direction == 1 or -1) | |
284 public: | |
285 intptr_t* interpreter_frame_expression_stack() const; | |
286 static jint interpreter_frame_expression_stack_direction(); | |
287 | |
288 // The _at version returns a pointer because the address is used for GC. | |
289 intptr_t* interpreter_frame_expression_stack_at(jint offset) const; | |
290 | |
291 // top of expression stack | |
292 intptr_t* interpreter_frame_tos_at(jint offset) const; | |
293 intptr_t* interpreter_frame_tos_address() const; | |
294 | |
295 | |
296 jint interpreter_frame_expression_stack_size() const; | |
297 | |
298 intptr_t* interpreter_frame_sender_sp() const; | |
299 | |
300 #ifndef CC_INTERP | |
301 // template based interpreter deoptimization support | |
302 void set_interpreter_frame_sender_sp(intptr_t* sender_sp); | |
303 void interpreter_frame_set_monitor_end(BasicObjectLock* value); | |
304 #endif // CC_INTERP | |
305 | |
306 // BasicObjectLocks: | |
307 // | |
308 // interpreter_frame_monitor_begin is higher in memory than interpreter_frame_monitor_end | |
309 // Interpreter_frame_monitor_begin points to one element beyond the oldest one, | |
310 // interpreter_frame_monitor_end points to the youngest one, or if there are none, | |
311 // it points to one beyond where the first element will be. | |
312 // interpreter_frame_monitor_size reports the allocation size of a monitor in the interpreter stack. | |
313 // this value is >= BasicObjectLock::size(), and may be rounded up | |
314 | |
315 BasicObjectLock* interpreter_frame_monitor_begin() const; | |
316 BasicObjectLock* interpreter_frame_monitor_end() const; | |
317 BasicObjectLock* next_monitor_in_interpreter_frame(BasicObjectLock* current) const; | |
318 BasicObjectLock* previous_monitor_in_interpreter_frame(BasicObjectLock* current) const; | |
319 static int interpreter_frame_monitor_size(); | |
320 | |
321 void interpreter_frame_verify_monitor(BasicObjectLock* value) const; | |
322 | |
323 // Tells whether the current interpreter_frame frame pointer | |
324 // corresponds to the old compiled/deoptimized fp | |
325 // The receiver used to be a top level frame | |
326 bool interpreter_frame_equals_unpacked_fp(intptr_t* fp); | |
327 | |
328 // Return/result value from this interpreter frame | |
329 // If the method return type is T_OBJECT or T_ARRAY populates oop_result | |
330 // For other (non-T_VOID) the appropriate field in the jvalue is populated | |
331 // with the result value. | |
332 // Should only be called when at method exit when the method is not | |
333 // exiting due to an exception. | |
334 BasicType interpreter_frame_result(oop* oop_result, jvalue* value_result); | |
335 | |
336 public: | |
337 // Method & constant pool cache | |
338 methodOop interpreter_frame_method() const; | |
339 void interpreter_frame_set_method(methodOop method); | |
340 methodOop* interpreter_frame_method_addr() const; | |
341 constantPoolCacheOop* interpreter_frame_cache_addr() const; | |
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342 #ifdef PPC |
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343 oop* interpreter_frame_mirror_addr() const; |
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344 #endif |
0 | 345 |
346 public: | |
347 // Entry frames | |
348 JavaCallWrapper* entry_frame_call_wrapper() const; | |
349 intptr_t* entry_frame_argument_at(int offset) const; | |
350 | |
351 // tells whether there is another chunk of Delta stack above | |
352 bool entry_frame_is_first() const; | |
353 | |
354 // Compiled frames: | |
355 | |
356 public: | |
357 // Given the index of a local, and the number of argument words | |
358 // in this stack frame, tell which word of the stack frame to find | |
359 // the local in. Arguments are stored above the ofp/rpc pair, | |
360 // while other locals are stored below it. | |
361 // Since monitors (BasicLock blocks) are also assigned indexes, | |
362 // but may have different storage requirements, their presence | |
363 // can also affect the calculation of offsets. | |
364 static int local_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors); | |
365 | |
366 // Given the index of a monitor, etc., tell which word of the | |
367 // stack frame contains the start of the BasicLock block. | |
368 // Note that the local index by convention is the __higher__ | |
369 // of the two indexes allocated to the block. | |
370 static int monitor_offset_for_compiler(int local_index, int nof_args, int max_nof_locals, int max_nof_monitors); | |
371 | |
372 // Tell the smallest value that local_offset_for_compiler will attain. | |
373 // This is used to help determine how much stack frame to allocate. | |
374 static int min_local_offset_for_compiler(int nof_args, int max_nof_locals, int max_nof_monitors); | |
375 | |
376 // Tells if this register must be spilled during a call. | |
377 // On Intel, all registers are smashed by calls. | |
378 static bool volatile_across_calls(Register reg); | |
379 | |
380 | |
381 // Safepoints | |
382 | |
383 public: | |
384 oop saved_oop_result(RegisterMap* map) const; | |
385 void set_saved_oop_result(RegisterMap* map, oop obj); | |
386 | |
387 // For debugging | |
388 private: | |
389 const char* print_name() const; | |
390 | |
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391 void describe_pd(FrameValues& values, int frame_no); |
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392 |
0 | 393 public: |
394 void print_value() const { print_value_on(tty,NULL); } | |
395 void print_value_on(outputStream* st, JavaThread *thread) const; | |
396 void print_on(outputStream* st) const; | |
397 void interpreter_frame_print_on(outputStream* st) const; | |
398 void print_on_error(outputStream* st, char* buf, int buflen, bool verbose = false) const; | |
399 | |
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400 // Add annotated descriptions of memory locations belonging to this frame to values |
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401 void describe(FrameValues& values, int frame_no); |
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402 |
0 | 403 // Conversion from an VMReg to physical stack location |
404 oop* oopmapreg_to_location(VMReg reg, const RegisterMap* regmap) const; | |
405 | |
406 // Oops-do's | |
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407 void oops_compiled_arguments_do(Symbol* signature, bool has_receiver, const RegisterMap* reg_map, OopClosure* f); |
0 | 408 void oops_interpreted_do(OopClosure* f, const RegisterMap* map, bool query_oop_map_cache = true); |
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409 void oops_ricochet_do(OopClosure* f, const RegisterMap* map); |
0 | 410 |
411 private: | |
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412 void oops_interpreted_arguments_do(Symbol* signature, bool has_receiver, OopClosure* f); |
0 | 413 |
414 // Iteration of oops | |
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415 void oops_do_internal(OopClosure* f, CodeBlobClosure* cf, RegisterMap* map, bool use_interpreter_oop_map_cache); |
0 | 416 void oops_entry_do(OopClosure* f, const RegisterMap* map); |
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417 void oops_code_blob_do(OopClosure* f, CodeBlobClosure* cf, const RegisterMap* map); |
0 | 418 int adjust_offset(methodOop method, int index); // helper for above fn |
419 public: | |
420 // Memory management | |
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421 void oops_do(OopClosure* f, CodeBlobClosure* cf, RegisterMap* map) { oops_do_internal(f, cf, map, true); } |
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422 void nmethods_do(CodeBlobClosure* cf); |
0 | 423 |
424 void gc_prologue(); | |
425 void gc_epilogue(); | |
426 void pd_gc_epilog(); | |
427 | |
428 # ifdef ENABLE_ZAP_DEAD_LOCALS | |
429 private: | |
430 class CheckValueClosure: public OopClosure { | |
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431 public: |
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432 void do_oop(oop* p); |
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433 void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
0 | 434 }; |
435 static CheckValueClosure _check_value; | |
436 | |
437 class CheckOopClosure: public OopClosure { | |
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438 public: |
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439 void do_oop(oop* p); |
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440 void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
0 | 441 }; |
442 static CheckOopClosure _check_oop; | |
443 | |
444 static void check_derived_oop(oop* base, oop* derived); | |
445 | |
446 class ZapDeadClosure: public OopClosure { | |
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447 public: |
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448 void do_oop(oop* p); |
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449 void do_oop(narrowOop* p) { ShouldNotReachHere(); } |
0 | 450 }; |
451 static ZapDeadClosure _zap_dead; | |
452 | |
453 public: | |
454 // Zapping | |
455 void zap_dead_locals (JavaThread* thread, const RegisterMap* map); | |
456 void zap_dead_interpreted_locals(JavaThread* thread, const RegisterMap* map); | |
457 void zap_dead_compiled_locals (JavaThread* thread, const RegisterMap* map); | |
458 void zap_dead_entry_locals (JavaThread* thread, const RegisterMap* map); | |
459 void zap_dead_deoptimized_locals(JavaThread* thread, const RegisterMap* map); | |
460 # endif | |
461 // Verification | |
462 void verify(const RegisterMap* map); | |
463 static bool verify_return_pc(address x); | |
464 static bool is_bci(intptr_t bcx); | |
465 // Usage: | |
466 // assert(frame::verify_return_pc(return_address), "must be a return pc"); | |
467 | |
468 int pd_oop_map_offset_adjustment() const; | |
469 | |
1972 | 470 #ifdef TARGET_ARCH_x86 |
471 # include "frame_x86.hpp" | |
472 #endif | |
473 #ifdef TARGET_ARCH_sparc | |
474 # include "frame_sparc.hpp" | |
475 #endif | |
476 #ifdef TARGET_ARCH_zero | |
477 # include "frame_zero.hpp" | |
478 #endif | |
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479 #ifdef TARGET_ARCH_arm |
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480 # include "frame_arm.hpp" |
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481 #endif |
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482 #ifdef TARGET_ARCH_ppc |
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483 # include "frame_ppc.hpp" |
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484 #endif |
1972 | 485 |
0 | 486 }; |
487 | |
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488 #ifdef ASSERT |
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489 // A simple class to describe a location on the stack |
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490 class FrameValue VALUE_OBJ_CLASS_SPEC { |
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491 public: |
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492 intptr_t* location; |
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493 char* description; |
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494 int owner; |
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495 int priority; |
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496 }; |
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497 |
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498 |
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499 // A collection of described stack values that can print a symbolic |
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500 // description of the stack memory. Interpreter frame values can be |
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501 // in the caller frames so all the values are collected first and then |
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502 // sorted before being printed. |
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503 class FrameValues { |
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504 private: |
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505 GrowableArray<FrameValue> _values; |
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506 |
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507 static int compare(FrameValue* a, FrameValue* b) { |
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508 if (a->location == b->location) { |
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509 return a->priority - b->priority; |
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510 } |
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511 return a->location - b->location; |
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512 } |
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513 |
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514 public: |
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515 // Used by frame functions to describe locations. |
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516 void describe(int owner, intptr_t* location, const char* description, int priority = 0); |
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517 |
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518 void validate(); |
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519 void print(JavaThread* thread); |
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520 }; |
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521 |
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522 #endif |
0 | 523 |
524 // | |
525 // StackFrameStream iterates through the frames of a thread starting from | |
526 // top most frame. It automatically takes care of updating the location of | |
527 // all (callee-saved) registers. Notice: If a thread is stopped at | |
528 // a safepoint, all registers are saved, not only the callee-saved ones. | |
529 // | |
530 // Use: | |
531 // | |
532 // for(StackFrameStream fst(thread); !fst.is_done(); fst.next()) { | |
533 // ... | |
534 // } | |
535 // | |
536 class StackFrameStream : public StackObj { | |
537 private: | |
538 frame _fr; | |
539 RegisterMap _reg_map; | |
540 bool _is_done; | |
541 public: | |
542 StackFrameStream(JavaThread *thread, bool update = true); | |
543 | |
544 // Iteration | |
545 bool is_done() { return (_is_done) ? true : (_is_done = _fr.is_first_frame(), false); } | |
546 void next() { if (!_is_done) _fr = _fr.sender(&_reg_map); } | |
547 | |
548 // Query | |
549 frame *current() { return &_fr; } | |
550 RegisterMap* register_map() { return &_reg_map; } | |
551 }; | |
1972 | 552 |
553 #endif // SHARE_VM_RUNTIME_FRAME_HPP |