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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 2013 the V8 project authors. All rights reserved. 1 // Copyright 2013 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_ARM64 7 #if V8_TARGET_ARCH_ARM64
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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1282 } 1282 }
1283 1283
1284 1284
1285 int RegExpMacroAssemblerARM64::CheckStackGuardState(Address* return_address, 1285 int RegExpMacroAssemblerARM64::CheckStackGuardState(Address* return_address,
1286 Code* re_code, 1286 Code* re_code,
1287 Address re_frame, 1287 Address re_frame,
1288 int start_offset, 1288 int start_offset,
1289 const byte** input_start, 1289 const byte** input_start,
1290 const byte** input_end) { 1290 const byte** input_end) {
1291 Isolate* isolate = frame_entry<Isolate*>(re_frame, kIsolate); 1291 Isolate* isolate = frame_entry<Isolate*>(re_frame, kIsolate);
1292 if (isolate->stack_guard()->IsStackOverflow()) { 1292 StackLimitCheck check(isolate);
1293 if (check.JsHasOverflowed()) {
1293 isolate->StackOverflow(); 1294 isolate->StackOverflow();
1294 return EXCEPTION; 1295 return EXCEPTION;
1295 } 1296 }
1296 1297
1297 // If not real stack overflow the stack guard was used to interrupt 1298 // If not real stack overflow the stack guard was used to interrupt
1298 // execution for another purpose. 1299 // execution for another purpose.
1299 1300
1300 // If this is a direct call from JavaScript retry the RegExp forcing the call 1301 // If this is a direct call from JavaScript retry the RegExp forcing the call
1301 // through the runtime system. Currently the direct call cannot handle a GC. 1302 // through the runtime system. Currently the direct call cannot handle a GC.
1302 if (frame_entry<int>(re_frame, kDirectCall) == 1) { 1303 if (frame_entry<int>(re_frame, kDirectCall) == 1) {
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1697 __ Ldrh(current_character(), MemOperand(input_end(), offset, SXTW)); 1698 __ Ldrh(current_character(), MemOperand(input_end(), offset, SXTW));
1698 } 1699 }
1699 } 1700 }
1700 } 1701 }
1701 1702
1702 #endif // V8_INTERPRETED_REGEXP 1703 #endif // V8_INTERPRETED_REGEXP
1703 1704
1704 }} // namespace v8::internal 1705 }} // namespace v8::internal
1705 1706
1706 #endif // V8_TARGET_ARCH_ARM64 1707 #endif // V8_TARGET_ARCH_ARM64
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