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Issue 1858283002: Initial SIMDBC interpreter. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Created 4 years, 8 months ago
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1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2014, 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 <setjmp.h> // NOLINT 5 #include <setjmp.h> // NOLINT
6 #include <stdlib.h> 6 #include <stdlib.h>
7 7
8 #include "vm/globals.h" 8 #include "vm/globals.h"
9 #if defined(TARGET_ARCH_ARM64) 9 #if defined(TARGET_ARCH_ARM64)
10 10
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36 #define SScanF sscanf // NOLINT 36 #define SScanF sscanf // NOLINT
37 37
38 38
39 // SimulatorSetjmpBuffer are linked together, and the last created one 39 // SimulatorSetjmpBuffer are linked together, and the last created one
40 // is referenced by the Simulator. When an exception is thrown, the exception 40 // is referenced by the Simulator. When an exception is thrown, the exception
41 // runtime looks at where to jump and finds the corresponding 41 // runtime looks at where to jump and finds the corresponding
42 // SimulatorSetjmpBuffer based on the stack pointer of the exception handler. 42 // SimulatorSetjmpBuffer based on the stack pointer of the exception handler.
43 // The runtime then does a Longjmp on that buffer to return to the simulator. 43 // The runtime then does a Longjmp on that buffer to return to the simulator.
44 class SimulatorSetjmpBuffer { 44 class SimulatorSetjmpBuffer {
45 public: 45 public:
46 int Setjmp() { return setjmp(buffer_); }
47 void Longjmp() { 46 void Longjmp() {
48 // "This" is now the last setjmp buffer. 47 // "This" is now the last setjmp buffer.
49 simulator_->set_last_setjmp_buffer(this); 48 simulator_->set_last_setjmp_buffer(this);
50 longjmp(buffer_, 1); 49 longjmp(buffer_, 1);
51 } 50 }
52 51
53 explicit SimulatorSetjmpBuffer(Simulator* sim) { 52 explicit SimulatorSetjmpBuffer(Simulator* sim) {
54 simulator_ = sim; 53 simulator_ = sim;
55 link_ = sim->last_setjmp_buffer(); 54 link_ = sim->last_setjmp_buffer();
56 sim->set_last_setjmp_buffer(this); 55 sim->set_last_setjmp_buffer(this);
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3606 set_register(NULL, kExceptionObjectReg, bit_cast<int64_t>(raw_exception)); 3605 set_register(NULL, kExceptionObjectReg, bit_cast<int64_t>(raw_exception));
3607 set_register(NULL, kStackTraceObjectReg, bit_cast<int64_t>(raw_stacktrace)); 3606 set_register(NULL, kStackTraceObjectReg, bit_cast<int64_t>(raw_stacktrace));
3608 buf->Longjmp(); 3607 buf->Longjmp();
3609 } 3608 }
3610 3609
3611 } // namespace dart 3610 } // namespace dart
3612 3611
3613 #endif // !defined(USING_SIMULATOR) 3612 #endif // !defined(USING_SIMULATOR)
3614 3613
3615 #endif // defined TARGET_ARCH_ARM64 3614 #endif // defined TARGET_ARCH_ARM64
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