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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/longjump.h" | 5 #include "vm/longjump.h" |
6 | 6 |
7 #include "include/dart_api.h" | 7 #include "include/dart_api.h" |
8 | 8 |
9 #include "vm/dart_api_impl.h" | 9 #include "vm/dart_api_impl.h" |
10 #include "vm/isolate.h" | 10 #include "vm/isolate.h" |
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21 return &environment_; | 21 return &environment_; |
22 } | 22 } |
23 | 23 |
24 | 24 |
25 bool LongJumpScope::IsSafeToJump() { | 25 bool LongJumpScope::IsSafeToJump() { |
26 // We do not want to jump past Dart frames. Note that this code | 26 // We do not want to jump past Dart frames. Note that this code |
27 // assumes the stack grows from high to low. | 27 // assumes the stack grows from high to low. |
28 Thread* thread = Thread::Current(); | 28 Thread* thread = Thread::Current(); |
29 uword jumpbuf_addr = Isolate::GetCurrentStackPointer(); | 29 uword jumpbuf_addr = Isolate::GetCurrentStackPointer(); |
30 #if defined(USING_SIMULATOR) | 30 #if defined(USING_SIMULATOR) |
| 31 Isolate* isolate = thread->isolate(); |
31 uword top_exit_frame_info = isolate->simulator()->top_exit_frame_info(); | 32 uword top_exit_frame_info = isolate->simulator()->top_exit_frame_info(); |
32 #else | 33 #else |
33 uword top_exit_frame_info = thread->top_exit_frame_info(); | 34 uword top_exit_frame_info = thread->top_exit_frame_info(); |
34 #endif | 35 #endif |
35 if (!thread->IsMutatorThread()) { | 36 if (!thread->IsMutatorThread()) { |
36 // A helper thread does not execute Dart code, so it's safe to jump. | 37 // A helper thread does not execute Dart code, so it's safe to jump. |
37 ASSERT(top_exit_frame_info == 0); | 38 ASSERT(top_exit_frame_info == 0); |
38 return true; | 39 return true; |
39 } | 40 } |
40 return ((top_exit_frame_info == 0) || (jumpbuf_addr < top_exit_frame_info)); | 41 return ((top_exit_frame_info == 0) || (jumpbuf_addr < top_exit_frame_info)); |
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60 // Remember the error in the sticky error of this isolate. | 61 // Remember the error in the sticky error of this isolate. |
61 isolate->object_store()->set_sticky_error(error); | 62 isolate->object_store()->set_sticky_error(error); |
62 | 63 |
63 // Destruct all the active StackResource objects. | 64 // Destruct all the active StackResource objects. |
64 StackResource::UnwindAbove(thread, top_); | 65 StackResource::UnwindAbove(thread, top_); |
65 longjmp(environment_, value); | 66 longjmp(environment_, value); |
66 UNREACHABLE(); | 67 UNREACHABLE(); |
67 } | 68 } |
68 | 69 |
69 } // namespace dart | 70 } // namespace dart |
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