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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, 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/globals.h" | 5 #include "vm/globals.h" |
6 #include "vm/simulator.h" | 6 #include "vm/simulator.h" |
7 #include "vm/signal_handler.h" | 7 #include "vm/signal_handler.h" |
8 #if defined(TARGET_OS_LINUX) | 8 #if defined(TARGET_OS_OPENBSD) |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
11 | 11 |
12 uintptr_t SignalHandler::GetProgramCounter(const mcontext_t& mcontext) { | 12 uintptr_t SignalHandler::GetProgramCounter(const mcontext_t& mcontext) { |
13 uintptr_t pc = 0; | 13 uintptr_t pc = 0; |
14 | 14 |
15 #if defined(HOST_ARCH_IA32) | 15 #if defined(HOST_ARCH_IA32) |
16 pc = static_cast<uintptr_t>(mcontext.gregs[REG_EIP]); | 16 pc = static_cast<uintptr_t>(mcontext.sc_eip); |
17 #elif defined(HOST_ARCH_X64) | 17 #elif defined(HOST_ARCH_X64) |
18 pc = static_cast<uintptr_t>(mcontext.gregs[REG_RIP]); | 18 pc = static_cast<uintptr_t>(mcontext.sc_rip); |
19 #elif defined(HOST_ARCH_ARM) | |
20 pc = static_cast<uintptr_t>(mcontext.arm_pc); | |
21 #elif defined(HOST_ARCH_ARM64) | |
22 pc = static_cast<uintptr_t>(mcontext.pc); | |
23 #elif defined(HOST_ARCH_MIPS) | |
24 pc = static_cast<uintptr_t>(mcontext.pc); | |
25 #else | 19 #else |
26 #error Unsupported architecture. | 20 #error Unsupported architecture. |
27 #endif // HOST_ARCH_... | 21 #endif // HOST_ARCH_... |
28 return pc; | 22 return pc; |
29 } | 23 } |
30 | 24 |
31 | 25 |
32 uintptr_t SignalHandler::GetFramePointer(const mcontext_t& mcontext) { | 26 uintptr_t SignalHandler::GetFramePointer(const mcontext_t& mcontext) { |
33 uintptr_t fp = 0; | 27 uintptr_t fp = 0; |
34 | 28 |
35 #if defined(HOST_ARCH_IA32) | 29 #if defined(HOST_ARCH_IA32) |
36 fp = static_cast<uintptr_t>(mcontext.gregs[REG_EBP]); | 30 fp = static_cast<uintptr_t>(mcontext.sc_ebp); |
37 #elif defined(HOST_ARCH_X64) | 31 #elif defined(HOST_ARCH_X64) |
38 fp = static_cast<uintptr_t>(mcontext.gregs[REG_RBP]); | 32 fp = static_cast<uintptr_t>(mcontext.sc_rbp); |
39 #elif defined(HOST_ARCH_ARM) | |
40 fp = static_cast<uintptr_t>(mcontext.arm_fp); | |
41 #elif defined(HOST_ARCH_ARM64) | |
42 fp = static_cast<uintptr_t>(mcontext.regs[29]); | |
43 #elif defined(HOST_ARCH_MIPS) | |
44 fp = static_cast<uintptr_t>(mcontext.gregs[30]); | |
45 #else | 33 #else |
46 #error Unsupported architecture. | 34 #error Unsupported architecture. |
47 #endif // HOST_ARCH_... | 35 #endif // HOST_ARCH_... |
48 | 36 |
49 return fp; | 37 return fp; |
50 } | 38 } |
51 | 39 |
52 | 40 |
53 uintptr_t SignalHandler::GetCStackPointer(const mcontext_t& mcontext) { | 41 uintptr_t SignalHandler::GetCStackPointer(const mcontext_t& mcontext) { |
54 uintptr_t sp = 0; | 42 uintptr_t sp = 0; |
55 | 43 |
56 #if defined(HOST_ARCH_IA32) | 44 #if defined(HOST_ARCH_IA32) |
57 sp = static_cast<uintptr_t>(mcontext.gregs[REG_ESP]); | 45 sp = static_cast<uintptr_t>(mcontext.sc_esp); |
58 #elif defined(HOST_ARCH_X64) | 46 #elif defined(HOST_ARCH_X64) |
59 sp = static_cast<uintptr_t>(mcontext.gregs[REG_RSP]); | 47 sp = static_cast<uintptr_t>(mcontext.sc_rsp); |
60 #elif defined(HOST_ARCH_ARM) | |
61 sp = static_cast<uintptr_t>(mcontext.arm_sp); | |
62 #elif defined(HOST_ARCH_ARM64) | |
63 sp = static_cast<uintptr_t>(mcontext.sp); | |
64 #elif defined(HOST_ARCH_MIPS) | |
65 sp = static_cast<uintptr_t>(mcontext.gregs[29]); | |
66 #else | 48 #else |
67 #error Unsupported architecture. | 49 #error Unsupported architecture. |
68 #endif // HOST_ARCH_... | 50 #endif // HOST_ARCH_... |
69 return sp; | 51 return sp; |
70 } | 52 } |
71 | 53 |
72 | 54 |
73 uintptr_t SignalHandler::GetDartStackPointer(const mcontext_t& mcontext) { | 55 uintptr_t SignalHandler::GetDartStackPointer(const mcontext_t& mcontext) { |
74 #if defined(TARGET_ARCH_ARM64) && !defined(USING_SIMULATOR) | 56 #if defined(TARGET_ARCH_ARM64) && !defined(USING_SIMULATOR) |
75 return static_cast<uintptr_t>(mcontext.regs[19]); | 57 return static_cast<uintptr_t>(mcontext.regs[18]); |
76 #else | 58 #else |
77 return GetCStackPointer(mcontext); | 59 return GetCStackPointer(mcontext); |
78 #endif | 60 #endif |
79 } | 61 } |
80 | 62 |
81 | 63 |
82 uintptr_t SignalHandler::GetLinkRegister(const mcontext_t& mcontext) { | 64 uintptr_t SignalHandler::GetLinkRegister(const mcontext_t& mcontext) { |
83 uintptr_t lr = 0; | 65 uintptr_t lr = 0; |
84 | 66 |
85 #if defined(HOST_ARCH_IA32) | 67 #if defined(HOST_ARCH_IA32) |
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117 act.sa_handler = SIG_IGN; | 99 act.sa_handler = SIG_IGN; |
118 sigemptyset(&act.sa_mask); | 100 sigemptyset(&act.sa_mask); |
119 act.sa_flags = 0; | 101 act.sa_flags = 0; |
120 int r = sigaction(SIGPROF, &act, NULL); | 102 int r = sigaction(SIGPROF, &act, NULL); |
121 ASSERT(r == 0); | 103 ASSERT(r == 0); |
122 } | 104 } |
123 | 105 |
124 | 106 |
125 } // namespace dart | 107 } // namespace dart |
126 | 108 |
127 #endif // defined(TARGET_OS_LINUX) | 109 #endif // defined(TARGET_OS_OPENBSD) |
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