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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_LINUX) |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
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122 return lr; | 122 return lr; |
123 } | 123 } |
124 | 124 |
125 | 125 |
126 void SignalHandler::Install(SignalAction action) { | 126 void SignalHandler::Install(SignalAction action) { |
127 struct sigaction act; | 127 struct sigaction act; |
128 act.sa_handler = NULL; | 128 act.sa_handler = NULL; |
129 act.sa_sigaction = action; | 129 act.sa_sigaction = action; |
130 sigemptyset(&act.sa_mask); | 130 sigemptyset(&act.sa_mask); |
131 act.sa_flags = SA_RESTART | SA_SIGINFO; | 131 act.sa_flags = SA_RESTART | SA_SIGINFO; |
132 // TODO(johnmccutchan): Do we care about restoring the signal handler? | 132 int r = sigaction(SIGPROF, &act, NULL); |
133 struct sigaction old_act; | |
134 int r = sigaction(SIGPROF, &act, &old_act); | |
135 ASSERT(r == 0); | 133 ASSERT(r == 0); |
136 } | 134 } |
137 | 135 |
| 136 |
| 137 void SignalHandler::Remove() { |
| 138 // Ignore future SIGPROF signals because by default SIGPROF will terminate |
| 139 // the process and we may have some signals in flight. |
| 140 struct sigaction act; |
| 141 act.sa_handler = SIG_IGN; |
| 142 sigemptyset(&act.sa_mask); |
| 143 act.sa_flags = 0; |
| 144 int r = sigaction(SIGPROF, &act, NULL); |
| 145 ASSERT(r == 0); |
| 146 } |
| 147 |
138 | 148 |
139 } // namespace dart | 149 } // namespace dart |
140 | 150 |
141 #endif // defined(TARGET_OS_LINUX) | 151 #endif // defined(TARGET_OS_LINUX) |
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