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Reactos
1/***
2*abort.c - abort a program by raising SIGABRT
3*
4* Copyright (c) Microsoft Corporation. All rights reserved.
5*
6*Purpose:
7* defines abort() - print a message and raise SIGABRT.
8*
9*******************************************************************************/
10
11#include <corecrt_internal.h>
12#include <signal.h>
13#include <stdlib.h>
14
15#ifdef _DEBUG
16 #define _INIT_ABORT_BEHAVIOR _WRITE_ABORT_MSG
17#else
18 #define _INIT_ABORT_BEHAVIOR _CALL_REPORTFAULT
19#endif
20
21extern "C" { unsigned int __abort_behavior = _INIT_ABORT_BEHAVIOR; }
22
23/***
24*void abort() - abort the current program by raising SIGABRT
25*
26*Purpose:
27* print out an abort message and raise the SIGABRT signal. If the user
28* hasn't defined an abort handler routine, terminate the program
29* with exit status of 3 without cleaning up.
30*
31* Multi-thread version does not raise SIGABRT -- this isn't supported
32* under multi-thread.
33*
34*Entry:
35* None.
36*
37*Exit:
38* Does not return.
39*
40*Uses:
41*
42*Exceptions:
43*
44*******************************************************************************/
45
46extern "C" void __cdecl abort()
47{
48 #ifdef _DEBUG
49 if (__abort_behavior & _WRITE_ABORT_MSG)
50 {
51 __acrt_report_runtime_error(L"abort() has been called");
52 }
53 #endif
54
55
56 /* Check if the user installed a handler for SIGABRT.
57 * We need to read the user handler atomically in the case
58 * another thread is aborting while we change the signal
59 * handler.
60 */
61 __crt_signal_handler_t const sigabrt_action = __acrt_get_sigabrt_handler();
62 if (sigabrt_action != SIG_DFL)
63 {
64 raise(SIGABRT);
65 }
66
67 /* If there is no user handler for SIGABRT or if the user
68 * handler returns, then exit from the program anyway
69 */
70
71 if (__abort_behavior & _CALL_REPORTFAULT)
72 {
73 #if defined _M_ARM || defined _M_ARM64 || defined _M_ARM64EC || defined _UCRT_ENCLAVE_BUILD
74 __fastfail(FAST_FAIL_FATAL_APP_EXIT);
75 #else
76 if (IsProcessorFeaturePresent(PF_FASTFAIL_AVAILABLE))
77 __fastfail(FAST_FAIL_FATAL_APP_EXIT);
78
79 __acrt_call_reportfault(_CRT_DEBUGGER_ABORT, STATUS_FATAL_APP_EXIT, EXCEPTION_NONCONTINUABLE);
80 #endif
81 }
82
83
84 /* If we don't want to call ReportFault, then we call _exit(3), which is the
85 * same as invoking the default handler for SIGABRT
86 */
87
88
89 _exit(3);
90}
91
92/***
93*unsigned int _set_abort_behavior(unsigned int, unsigned int) - set the behavior on abort
94*
95*Purpose:
96*
97*Entry:
98* unsigned int flags - the flags we want to set
99* unsigned int mask - mask the flag values
100*
101*Exit:
102* Return the old behavior flags
103*
104*Exceptions:
105* None
106*
107*******************************************************************************/
108
109extern "C" unsigned int __cdecl _set_abort_behavior(unsigned int flags, unsigned int mask)
110{
111 unsigned int oldflags = __abort_behavior;
112 __abort_behavior = oldflags & (~mask) | flags & mask;
113 return oldflags;
114}