abort.cpp File Reference

#include <corecrt_internal.h>
#include <signal.h>
#include <stdlib.h>

Include dependency graph for abort.cpp:

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Macros
#define	_INIT_ABORT_BEHAVIOR   _CALL_REPORTFAULT

Functions
void __cdecl	abort ()
	Aborts the program.
unsigned int __cdecl	_set_abort_behavior (unsigned int flags, unsigned int mask)
	Specifies the behavior of the abort() function.

Variables
unsigned int	__abort_behavior = _INIT_ABORT_BEHAVIOR

Macro Definition Documentation

_INIT_ABORT_BEHAVIOR

#define _INIT_ABORT_BEHAVIOR   _CALL_REPORTFAULT

Definition at line 18 of file abort.cpp.

Function Documentation

_set_abort_behavior()

unsigned int __cdecl _set_abort_behavior	(	unsigned int	flags,
		unsigned int	mask
	)

Specifies the behavior of the abort() function.

Parameters

flags	- Value of the new flags.
mask	- Mask that specifies which flags to update.

Returns

The old flags value.

Definition at line 109 of file abort.cpp.

{
    unsigned int oldflags = __abort_behavior;
    __abort_behavior = oldflags & (~mask) | flags & mask;
    return oldflags;
}

Referenced by _assert().

abort()

void __cdecl abort

(

void

)

Aborts the program.

Note

The function does not return.

Todo:

unimplemented

Definition at line 46 of file abort.cpp.

{
    #ifdef _DEBUG
    if (__abort_behavior & _WRITE_ABORT_MSG)
    {
        __acrt_report_runtime_error(L"abort() has been called");
    }
    #endif
 
 
    /* Check if the user installed a handler for SIGABRT.
     * We need to read the user handler atomically in the case
     * another thread is aborting while we change the signal
     * handler.
     */
    __crt_signal_handler_t const sigabrt_action = __acrt_get_sigabrt_handler();
    if (sigabrt_action != SIG_DFL)
    {
        raise(SIGABRT);
    }
 
    /* If there is no user handler for SIGABRT or if the user
     * handler returns, then exit from the program anyway
     */
 
    if (__abort_behavior & _CALL_REPORTFAULT)
    {
        #if defined _M_ARM || defined _M_ARM64 || defined _M_ARM64EC || defined _UCRT_ENCLAVE_BUILD
        __fastfail(FAST_FAIL_FATAL_APP_EXIT);
        #else
        if (IsProcessorFeaturePresent(PF_FASTFAIL_AVAILABLE))
            __fastfail(FAST_FAIL_FATAL_APP_EXIT);
 
        __acrt_call_reportfault(_CRT_DEBUGGER_ABORT, STATUS_FATAL_APP_EXIT, EXCEPTION_NONCONTINUABLE);
        #endif
    }
 
 
    /* If we don't want to call ReportFault, then we call _exit(3), which is the
     * same as invoking the default handler for SIGABRT
     */
 
 
    _exit(3);
}

Variable Documentation

__abort_behavior

unsigned int __abort_behavior = _INIT_ABORT_BEHAVIOR

Definition at line 21 of file abort.cpp.

Referenced by _set_abort_behavior(), and abort().