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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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175 static Address handler(ThreadLocalTop* thread) { return thread->handler_; } | 175 static Address handler(ThreadLocalTop* thread) { return thread->handler_; } |
176 | 176 |
177 static inline Address* c_entry_fp_address() { | 177 static inline Address* c_entry_fp_address() { |
178 return &thread_local_.c_entry_fp_; | 178 return &thread_local_.c_entry_fp_; |
179 } | 179 } |
180 static inline Address* handler_address() { return &thread_local_.handler_; } | 180 static inline Address* handler_address() { return &thread_local_.handler_; } |
181 | 181 |
182 // Generated code scratch locations. | 182 // Generated code scratch locations. |
183 static void* formal_count_address() { return &thread_local_.formal_count_; } | 183 static void* formal_count_address() { return &thread_local_.formal_count_; } |
184 | 184 |
185 static void new_break(StackFrame::Id break_frame_id); | |
186 static void set_break(StackFrame::Id break_frame_id, int break_id); | |
187 static bool check_break(int break_id); | |
188 static bool is_break(); | |
189 static StackFrame::Id break_frame_id(); | |
190 static int break_id(); | |
191 | |
192 static void MarkCompactPrologue(bool is_compacting); | 185 static void MarkCompactPrologue(bool is_compacting); |
193 static void MarkCompactEpilogue(bool is_compacting); | 186 static void MarkCompactEpilogue(bool is_compacting); |
194 static void MarkCompactPrologue(bool is_compacting, | 187 static void MarkCompactPrologue(bool is_compacting, |
195 char* archived_thread_data); | 188 char* archived_thread_data); |
196 static void MarkCompactEpilogue(bool is_compacting, | 189 static void MarkCompactEpilogue(bool is_compacting, |
197 char* archived_thread_data); | 190 char* archived_thread_data); |
198 static void PrintCurrentStackTrace(FILE* out); | 191 static void PrintCurrentStackTrace(FILE* out); |
199 static void PrintStackTrace(FILE* out, char* thread_data); | 192 static void PrintStackTrace(FILE* out, char* thread_data); |
200 static void PrintStack(StringStream* accumulator); | 193 static void PrintStack(StringStream* accumulator); |
201 static void PrintStack(); | 194 static void PrintStack(); |
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297 static void PrintStackTrace(FILE* out, ThreadLocalTop* thread); | 290 static void PrintStackTrace(FILE* out, ThreadLocalTop* thread); |
298 static void MarkCompactPrologue(bool is_compacting, | 291 static void MarkCompactPrologue(bool is_compacting, |
299 ThreadLocalTop* archived_thread_data); | 292 ThreadLocalTop* archived_thread_data); |
300 static void MarkCompactEpilogue(bool is_compacting, | 293 static void MarkCompactEpilogue(bool is_compacting, |
301 ThreadLocalTop* archived_thread_data); | 294 ThreadLocalTop* archived_thread_data); |
302 | 295 |
303 // Debug. | 296 // Debug. |
304 // Mutex for serializing access to break control structures. | 297 // Mutex for serializing access to break control structures. |
305 static Mutex* break_access_; | 298 static Mutex* break_access_; |
306 | 299 |
307 // ID of the frame where execution is stopped by debugger. | |
308 static StackFrame::Id break_frame_id_; | |
309 | |
310 // Counter to create unique id for each debug break. | |
311 static int break_count_; | |
312 | |
313 // Current debug break, 0 if running. | |
314 static int break_id_; | |
315 | |
316 friend class SaveContext; | 300 friend class SaveContext; |
317 friend class AssertNoContextChange; | 301 friend class AssertNoContextChange; |
318 friend class ExecutionAccess; | 302 friend class ExecutionAccess; |
319 | 303 |
320 static void FillCache(); | 304 static void FillCache(); |
321 }; | 305 }; |
322 | 306 |
323 | 307 |
324 // If the GCC version is 4.1.x or 4.2.x an additional field is added to the | 308 // If the GCC version is 4.1.x or 4.2.x an additional field is added to the |
325 // class as a work around for a bug in the generated code found with these | 309 // class as a work around for a bug in the generated code found with these |
326 // versions of GCC. See V8 issue 122 for details. | 310 // versions of GCC. See V8 issue 122 for details. |
327 class SaveContext BASE_EMBEDDED { | 311 class SaveContext BASE_EMBEDDED { |
328 public: | 312 public: |
329 SaveContext() : | 313 SaveContext() |
330 context_(Top::context()), | 314 : context_(Top::context()), |
331 #if __GNUC_VERSION__ >= 40100 && __GNUC_VERSION__ < 40300 | 315 #if __GNUC_VERSION__ >= 40100 && __GNUC_VERSION__ < 40300 |
332 dummy_(Top::context()), | 316 dummy_(Top::context()), |
333 #endif | 317 #endif |
334 prev_(Top::save_context()) { | 318 prev_(Top::save_context()) { |
335 Top::set_save_context(this); | 319 Top::set_save_context(this); |
336 | 320 |
337 // If there is no JS frame under the current C frame, use the value 0. | 321 // If there is no JS frame under the current C frame, use the value 0. |
338 JavaScriptFrameIterator it; | 322 JavaScriptFrameIterator it; |
339 js_sp_ = it.done() ? 0 : it.frame()->sp(); | 323 js_sp_ = it.done() ? 0 : it.frame()->sp(); |
340 } | 324 } |
341 | 325 |
342 ~SaveContext() { | 326 ~SaveContext() { |
343 Top::set_context(*context_); | 327 Top::set_context(*context_); |
344 Top::set_save_context(prev_); | 328 Top::set_save_context(prev_); |
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385 | 369 |
386 class ExecutionAccess BASE_EMBEDDED { | 370 class ExecutionAccess BASE_EMBEDDED { |
387 public: | 371 public: |
388 ExecutionAccess(); | 372 ExecutionAccess(); |
389 ~ExecutionAccess(); | 373 ~ExecutionAccess(); |
390 }; | 374 }; |
391 | 375 |
392 } } // namespace v8::internal | 376 } } // namespace v8::internal |
393 | 377 |
394 #endif // V8_TOP_H_ | 378 #endif // V8_TOP_H_ |
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