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Side by Side Diff: runtime/vm/longjump.cc

Issue 1812753002: - Move (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 9 months ago
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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"
11 #include "vm/object.h" 11 #include "vm/object.h"
12 #include "vm/object_store.h" 12 #include "vm/object_store.h"
13 #include "vm/os.h" 13 #include "vm/os.h"
14 #include "vm/simulator.h" 14 #include "vm/simulator.h"
15 15
16 namespace dart { 16 namespace dart {
17 17
18 jmp_buf* LongJumpScope::Set() { 18 jmp_buf* LongJumpScope::Set() {
19 ASSERT(top_ == NULL); 19 ASSERT(top_ == NULL);
20 top_ = Thread::Current()->top_resource(); 20 top_ = Thread::Current()->top_resource();
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 = Thread::GetCurrentStackPointer();
30 #if defined(USING_SIMULATOR) 30 #if defined(USING_SIMULATOR)
31 Simulator* sim = Simulator::Current(); 31 Simulator* sim = Simulator::Current();
32 // When using simulator, only mutator thread should refer to Simulator 32 // When using simulator, only mutator thread should refer to Simulator
33 // since there can be only one per isolate. 33 // since there can be only one per isolate.
34 uword top_exit_frame_info = thread->IsMutatorThread() ? 34 uword top_exit_frame_info = thread->IsMutatorThread() ?
35 sim->top_exit_frame_info() : 0; 35 sim->top_exit_frame_info() : 0;
36 #else 36 #else
37 uword top_exit_frame_info = thread->top_exit_frame_info(); 37 uword top_exit_frame_info = thread->top_exit_frame_info();
38 #endif 38 #endif
39 if (!thread->IsMutatorThread()) { 39 if (!thread->IsMutatorThread()) {
(...skipping 23 matching lines...) Expand all
63 // Remember the error in the sticky error of this isolate. 63 // Remember the error in the sticky error of this isolate.
64 thread->set_sticky_error(error); 64 thread->set_sticky_error(error);
65 65
66 // Destruct all the active StackResource objects. 66 // Destruct all the active StackResource objects.
67 StackResource::UnwindAbove(thread, top_); 67 StackResource::UnwindAbove(thread, top_);
68 longjmp(environment_, value); 68 longjmp(environment_, value);
69 UNREACHABLE(); 69 UNREACHABLE();
70 } 70 }
71 71
72 } // namespace dart 72 } // namespace dart
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