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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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 #include "src/regexp/regexp-macro-assembler.h" | 5 #include "src/regexp/regexp-macro-assembler.h" |
| 6 | 6 |
| 7 #include "src/assembler.h" | 7 #include "src/assembler.h" |
| 8 #include "src/isolate-inl.h" | 8 #include "src/isolate-inl.h" |
| 9 #include "src/regexp/regexp-stack.h" | 9 #include "src/regexp/regexp-stack.h" |
| 10 #include "src/simulator.h" | 10 #include "src/simulator.h" |
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| 170 isolate->StackOverflow(); | 170 isolate->StackOverflow(); |
| 171 return_value = EXCEPTION; | 171 return_value = EXCEPTION; |
| 172 } else if (is_direct_call) { | 172 } else if (is_direct_call) { |
| 173 // If not real stack overflow the stack guard was used to interrupt | 173 // If not real stack overflow the stack guard was used to interrupt |
| 174 // execution for another purpose. If this is a direct call from JavaScript | 174 // execution for another purpose. If this is a direct call from JavaScript |
| 175 // retry the RegExp forcing the call through the runtime system. | 175 // retry the RegExp forcing the call through the runtime system. |
| 176 // Currently the direct call cannot handle a GC. | 176 // Currently the direct call cannot handle a GC. |
| 177 return_value = RETRY; | 177 return_value = RETRY; |
| 178 } else { | 178 } else { |
| 179 Object* result = isolate->stack_guard()->HandleInterrupts(); | 179 Object* result = isolate->stack_guard()->HandleInterrupts(); |
| 180 if (result->IsException()) return_value = EXCEPTION; | 180 if (result->IsException(isolate)) return_value = EXCEPTION; |
| 181 } | 181 } |
| 182 | 182 |
| 183 DisallowHeapAllocation no_gc; | 183 DisallowHeapAllocation no_gc; |
| 184 | 184 |
| 185 if (*code_handle != re_code) { // Return address no longer valid | 185 if (*code_handle != re_code) { // Return address no longer valid |
| 186 intptr_t delta = code_handle->address() - re_code->address(); | 186 intptr_t delta = code_handle->address() - re_code->address(); |
| 187 // Overwrite the return address on the stack. | 187 // Overwrite the return address on the stack. |
| 188 *return_address += delta; | 188 *return_address += delta; |
| 189 } | 189 } |
| 190 | 190 |
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| 347 } | 347 } |
| 348 *stack_base = new_stack_base; | 348 *stack_base = new_stack_base; |
| 349 intptr_t stack_content_size = old_stack_base - stack_pointer; | 349 intptr_t stack_content_size = old_stack_base - stack_pointer; |
| 350 return new_stack_base - stack_content_size; | 350 return new_stack_base - stack_content_size; |
| 351 } | 351 } |
| 352 | 352 |
| 353 #endif // V8_INTERPRETED_REGEXP | 353 #endif // V8_INTERPRETED_REGEXP |
| 354 | 354 |
| 355 } // namespace internal | 355 } // namespace internal |
| 356 } // namespace v8 | 356 } // namespace v8 |
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