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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/process_util.h" | 5 #include "base/process/kill.h" |
6 | 6 |
7 #import <Cocoa/Cocoa.h> | |
8 #include <crt_externs.h> | |
9 #include <errno.h> | |
10 #include <mach/mach.h> | |
11 #include <mach/mach_init.h> | |
12 #include <mach/mach_vm.h> | |
13 #include <mach/shared_region.h> | |
14 #include <mach/task.h> | |
15 #include <malloc/malloc.h> | |
16 #import <objc/runtime.h> | |
17 #include <signal.h> | 7 #include <signal.h> |
18 #include <spawn.h> | |
19 #include <sys/event.h> | 8 #include <sys/event.h> |
20 #include <sys/sysctl.h> | |
21 #include <sys/types.h> | 9 #include <sys/types.h> |
22 #include <sys/wait.h> | 10 #include <sys/wait.h> |
23 | 11 |
24 #include <new> | |
25 #include <string> | |
26 | |
27 #include "base/containers/hash_tables.h" | |
28 #include "base/debug/debugger.h" | |
29 #include "base/file_util.h" | 12 #include "base/file_util.h" |
30 #include "base/lazy_instance.h" | |
31 #include "base/logging.h" | 13 #include "base/logging.h" |
32 #include "base/mac/mac_util.h" | |
33 #include "base/mac/scoped_mach_port.h" | |
34 #include "base/posix/eintr_wrapper.h" | 14 #include "base/posix/eintr_wrapper.h" |
35 #include "base/scoped_clear_errno.h" | |
36 #include "base/strings/string_util.h" | |
37 #include "base/sys_info.h" | |
38 #include "third_party/apple_apsl/CFBase.h" | |
39 #include "third_party/apple_apsl/malloc.h" | |
40 | 15 |
41 namespace base { | 16 namespace base { |
42 | 17 |
43 void RestoreDefaultExceptionHandler() { | |
44 // This function is tailored to remove the Breakpad exception handler. | |
45 // exception_mask matches s_exception_mask in | |
46 // breakpad/src/client/mac/handler/exception_handler.cc | |
47 const exception_mask_t exception_mask = EXC_MASK_BAD_ACCESS | | |
48 EXC_MASK_BAD_INSTRUCTION | | |
49 EXC_MASK_ARITHMETIC | | |
50 EXC_MASK_BREAKPOINT; | |
51 | |
52 // Setting the exception port to MACH_PORT_NULL may not be entirely | |
53 // kosher to restore the default exception handler, but in practice, | |
54 // it results in the exception port being set to Apple Crash Reporter, | |
55 // the desired behavior. | |
56 task_set_exception_ports(mach_task_self(), exception_mask, MACH_PORT_NULL, | |
57 EXCEPTION_DEFAULT, THREAD_STATE_NONE); | |
58 } | |
59 | |
60 ProcessId GetParentProcessId(ProcessHandle process) { | |
61 struct kinfo_proc info; | |
62 size_t length = sizeof(struct kinfo_proc); | |
63 int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, process }; | |
64 if (sysctl(mib, 4, &info, &length, NULL, 0) < 0) { | |
65 DPLOG(ERROR) << "sysctl"; | |
66 return -1; | |
67 } | |
68 if (length == 0) | |
69 return -1; | |
70 return info.kp_eproc.e_ppid; | |
71 } | |
72 | |
73 namespace { | 18 namespace { |
74 | 19 |
75 const int kWaitBeforeKillSeconds = 2; | 20 const int kWaitBeforeKillSeconds = 2; |
76 | 21 |
77 // Reap |child| process. This call blocks until completion. | 22 // Reap |child| process. This call blocks until completion. |
78 void BlockingReap(pid_t child) { | 23 void BlockingReap(pid_t child) { |
79 const pid_t result = HANDLE_EINTR(waitpid(child, NULL, 0)); | 24 const pid_t result = HANDLE_EINTR(waitpid(child, NULL, 0)); |
80 if (result == -1) { | 25 if (result == -1) { |
81 DPLOG(ERROR) << "waitpid(" << child << ", NULL, 0)"; | 26 DPLOG(ERROR) << "waitpid(" << child << ", NULL, 0)"; |
82 } | 27 } |
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219 } | 164 } |
220 } | 165 } |
221 | 166 |
222 } // namespace | 167 } // namespace |
223 | 168 |
224 void EnsureProcessTerminated(ProcessHandle process) { | 169 void EnsureProcessTerminated(ProcessHandle process) { |
225 WaitForChildToDie(process, kWaitBeforeKillSeconds); | 170 WaitForChildToDie(process, kWaitBeforeKillSeconds); |
226 } | 171 } |
227 | 172 |
228 } // namespace base | 173 } // namespace base |
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