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Side by Side Diff: src/arm/regexp-macro-assembler-arm.cc

Issue 339883002: Interrupts must not mask stack overflow. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 6 months ago
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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/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_ARM 7 #if V8_TARGET_ARCH_ARM
8 8
9 #include "src/cpu-profiler.h" 9 #include "src/cpu-profiler.h"
10 #include "src/unicode.h" 10 #include "src/unicode.h"
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1037 template <typename T> 1037 template <typename T>
1038 static T& frame_entry(Address re_frame, int frame_offset) { 1038 static T& frame_entry(Address re_frame, int frame_offset) {
1039 return reinterpret_cast<T&>(Memory::int32_at(re_frame + frame_offset)); 1039 return reinterpret_cast<T&>(Memory::int32_at(re_frame + frame_offset));
1040 } 1040 }
1041 1041
1042 1042
1043 int RegExpMacroAssemblerARM::CheckStackGuardState(Address* return_address, 1043 int RegExpMacroAssemblerARM::CheckStackGuardState(Address* return_address,
1044 Code* re_code, 1044 Code* re_code,
1045 Address re_frame) { 1045 Address re_frame) {
1046 Isolate* isolate = frame_entry<Isolate*>(re_frame, kIsolate); 1046 Isolate* isolate = frame_entry<Isolate*>(re_frame, kIsolate);
1047 if (isolate->stack_guard()->IsStackOverflow()) { 1047 StackLimitCheck check(isolate);
1048 if (check.JsHasOverflowed()) {
1048 isolate->StackOverflow(); 1049 isolate->StackOverflow();
1049 return EXCEPTION; 1050 return EXCEPTION;
1050 } 1051 }
1051 1052
1052 // If not real stack overflow the stack guard was used to interrupt 1053 // If not real stack overflow the stack guard was used to interrupt
1053 // execution for another purpose. 1054 // execution for another purpose.
1054 1055
1055 // If this is a direct call from JavaScript retry the RegExp forcing the call 1056 // If this is a direct call from JavaScript retry the RegExp forcing the call
1056 // through the runtime system. Currently the direct call cannot handle a GC. 1057 // through the runtime system. Currently the direct call cannot handle a GC.
1057 if (frame_entry<int>(re_frame, kDirectCall) == 1) { 1058 if (frame_entry<int>(re_frame, kDirectCall) == 1) {
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1268 } 1269 }
1269 1270
1270 1271
1271 #undef __ 1272 #undef __
1272 1273
1273 #endif // V8_INTERPRETED_REGEXP 1274 #endif // V8_INTERPRETED_REGEXP
1274 1275
1275 }} // namespace v8::internal 1276 }} // namespace v8::internal
1276 1277
1277 #endif // V8_TARGET_ARCH_ARM 1278 #endif // V8_TARGET_ARCH_ARM
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