126 lines
3.1 KiB
C
126 lines
3.1 KiB
C
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/***
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*abort.c - abort a program by raising SIGABRT
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines abort() - print a message and raise SIGABRT.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <stdlib.h>
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#include <internal.h>
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#include <awint.h>
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#include <rterr.h>
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#include <signal.h>
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#include <oscalls.h>
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#include <mtdll.h>
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#include <dbgint.h>
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#ifdef _DEBUG
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#define _INIT_ABORT_BEHAVIOR _WRITE_ABORT_MSG
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#else /* _DEBUG */
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#define _INIT_ABORT_BEHAVIOR _CALL_REPORTFAULT
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#endif /* _DEBUG */
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unsigned int __abort_behavior = _INIT_ABORT_BEHAVIOR;
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/***
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*void abort() - abort the current program by raising SIGABRT
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*
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*Purpose:
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* print out an abort message and raise the SIGABRT signal. If the user
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* hasn't defined an abort handler routine, terminate the program
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* with exit status of 3 without cleaning up.
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*
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* Multi-thread version does not raise SIGABRT -- this isn't supported
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* under multi-thread.
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*
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*Entry:
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* None.
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*
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*Exit:
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* Does not return.
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*
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*Uses:
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*
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*Exceptions:
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*
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*******************************************************************************/
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void __cdecl abort (
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void
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)
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{
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_PHNDLR sigabrt_act = SIG_DFL;
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#ifdef _DEBUG
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if (__abort_behavior & _WRITE_ABORT_MSG)
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{
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/* write the abort message */
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_NMSG_WRITE(_RT_ABORT);
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}
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#endif /* _DEBUG */
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/* Check if the user installed a handler for SIGABRT.
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* We need to read the user handler atomically in the case
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* another thread is aborting while we change the signal
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* handler.
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*/
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sigabrt_act = __get_sigabrt();
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if (sigabrt_act != SIG_DFL)
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{
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raise(SIGABRT);
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}
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/* If there is no user handler for SIGABRT or if the user
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* handler returns, then exit from the program anyway
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*/
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if (__abort_behavior & _CALL_REPORTFAULT)
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{
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#if defined (_M_ARM) || defined (_CRT_APP)
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__fastfail(FAST_FAIL_FATAL_APP_EXIT);
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#else /* defined (_M_ARM) || defined (_CRT_APP) */
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if (IsProcessorFeaturePresent(PF_FASTFAIL_AVAILABLE))
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__fastfail(FAST_FAIL_FATAL_APP_EXIT);
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_call_reportfault(_CRT_DEBUGGER_ABORT, STATUS_FATAL_APP_EXIT, EXCEPTION_NONCONTINUABLE);
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#endif /* defined (_M_ARM) || defined (_CRT_APP) */
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}
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/* If we don't want to call ReportFault, then we call _exit(3), which is the
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* same as invoking the default handler for SIGABRT
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*/
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_exit(3);
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}
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/***
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*unsigned int _set_abort_behavior(unsigned int, unsigned int) - set the behavior on abort
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*
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*Purpose:
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*
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*Entry:
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* unsigned int flags - the flags we want to set
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* unsigned int mask - mask the flag values
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*
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*Exit:
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* Return the old behavior flags
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*
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*Exceptions:
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* None
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*
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*******************************************************************************/
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unsigned int __cdecl _set_abort_behavior(unsigned int flags, unsigned int mask)
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{
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unsigned int oldflags = __abort_behavior;
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__abort_behavior = oldflags & (~mask) | flags & mask;
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return oldflags;
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}
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