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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_EXECUTION_H_ | 5 #ifndef V8_EXECUTION_H_ |
6 #define V8_EXECUTION_H_ | 6 #define V8_EXECUTION_H_ |
7 | 7 |
8 #include "src/handles.h" | 8 #include "src/handles.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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138 char* RestoreStackGuard(char* from); | 138 char* RestoreStackGuard(char* from); |
139 static int ArchiveSpacePerThread() { return sizeof(ThreadLocal); } | 139 static int ArchiveSpacePerThread() { return sizeof(ThreadLocal); } |
140 void FreeThreadResources(); | 140 void FreeThreadResources(); |
141 // Sets up the default stack guard for this thread if it has not | 141 // Sets up the default stack guard for this thread if it has not |
142 // already been set up. | 142 // already been set up. |
143 void InitThread(const ExecutionAccess& lock); | 143 void InitThread(const ExecutionAccess& lock); |
144 // Clears the stack guard for this thread so it does not look as if | 144 // Clears the stack guard for this thread so it does not look as if |
145 // it has been set up. | 145 // it has been set up. |
146 void ClearThread(const ExecutionAccess& lock); | 146 void ClearThread(const ExecutionAccess& lock); |
147 | 147 |
148 bool IsStackOverflow(); | |
149 | |
150 #define INTERRUPT_LIST(V) \ | 148 #define INTERRUPT_LIST(V) \ |
151 V(DEBUGBREAK, DebugBreak) \ | 149 V(DEBUGBREAK, DebugBreak) \ |
152 V(DEBUGCOMMAND, DebugCommand) \ | 150 V(DEBUGCOMMAND, DebugCommand) \ |
153 V(TERMINATE_EXECUTION, TerminateExecution) \ | 151 V(TERMINATE_EXECUTION, TerminateExecution) \ |
154 V(GC_REQUEST, GC) \ | 152 V(GC_REQUEST, GC) \ |
155 V(INSTALL_CODE, InstallCode) \ | 153 V(INSTALL_CODE, InstallCode) \ |
156 V(API_INTERRUPT, ApiInterrupt) \ | 154 V(API_INTERRUPT, ApiInterrupt) \ |
157 V(DEOPT_MARKED_ALLOCATION_SITES, DeoptMarkedAllocationSites) | 155 V(DEOPT_MARKED_ALLOCATION_SITES, DeoptMarkedAllocationSites) |
158 | 156 |
159 #define V(NAME, Name) \ | 157 #define V(NAME, Name) \ |
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259 uintptr_t real_jslimit_; // Actual JavaScript stack limit set for the VM. | 257 uintptr_t real_jslimit_; // Actual JavaScript stack limit set for the VM. |
260 uintptr_t jslimit_; | 258 uintptr_t jslimit_; |
261 uintptr_t real_climit_; // Actual C++ stack limit set for the VM. | 259 uintptr_t real_climit_; // Actual C++ stack limit set for the VM. |
262 uintptr_t climit_; | 260 uintptr_t climit_; |
263 | 261 |
264 int nesting_; | 262 int nesting_; |
265 int postpone_interrupts_nesting_; | 263 int postpone_interrupts_nesting_; |
266 int interrupt_flags_; | 264 int interrupt_flags_; |
267 }; | 265 }; |
268 | 266 |
| 267 class StackPointer { |
| 268 public: |
| 269 inline uintptr_t address() { return reinterpret_cast<uintptr_t>(this); } |
| 270 }; |
| 271 |
269 // TODO(isolates): Technically this could be calculated directly from a | 272 // TODO(isolates): Technically this could be calculated directly from a |
270 // pointer to StackGuard. | 273 // pointer to StackGuard. |
271 Isolate* isolate_; | 274 Isolate* isolate_; |
272 ThreadLocal thread_local_; | 275 ThreadLocal thread_local_; |
273 | 276 |
274 friend class Isolate; | 277 friend class Isolate; |
275 friend class StackLimitCheck; | 278 friend class StackLimitCheck; |
276 friend class PostponeInterruptsScope; | 279 friend class PostponeInterruptsScope; |
277 | 280 |
278 DISALLOW_COPY_AND_ASSIGN(StackGuard); | 281 DISALLOW_COPY_AND_ASSIGN(StackGuard); |
279 }; | 282 }; |
280 | 283 |
281 } } // namespace v8::internal | 284 } } // namespace v8::internal |
282 | 285 |
283 #endif // V8_EXECUTION_H_ | 286 #endif // V8_EXECUTION_H_ |
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