abort

ABORT(3)                   Linux Programmer's Manual                  ABORT(3)

NAME
       abort - cause abnormal process termination

SYNOPSIS
       #include <stdlib.h>

       void abort(void);

DESCRIPTION
       The abort() function first unblocks the SIGABRT signal, and then raises
       that signal for the calling process (as though  raise(3)  was  called).
       This  results  in  the  abnormal  termination of the process unless the
       SIGABRT signal is caught and the signal handler does  not  return  (see
       longjmp(3)).

       If  the SIGABRT signal is ignored, or caught by a handler that returns,
       the abort() function will still terminate the process.  It does this by
       restoring the default disposition for SIGABRT and then raising the sig-
       nal for a second time.

RETURN VALUE
       The abort() function never returns.

ATTRIBUTES
       For an  explanation  of  the  terms  used  in  this  section,  see  at-
       tributes(7).

       +----------+---------------+---------+
       |Interface | Attribute     | Value   |
       +----------+---------------+---------+
       |abort()   | Thread safety | MT-Safe |
       +----------+---------------+---------+
NOTES
       Up  until  glibc  2.26, if the abort() function caused process termina-
       tion, all open streams were closed and  flushed  (as  with  fclose(3)).
       However,  in some cases this could result in deadlocks and data corrup-
       tion.  Therefore, starting with  glibc  2.27,  abort()  terminates  the
       process  without flushing streams.  POSIX.1 permits either possible be-
       havior, saying that abort() "may include an attempt to effect  fclose()
       on all open streams".

CONFORMING TO
       SVr4, POSIX.1-2001, POSIX.1-2008, 4.3BSD, C89, C99.

SEE ALSO
       gdb(1), sigaction(2), assert(3), exit(3), longjmp(3), raise(3)

COLOPHON
       This  page  is  part of release 5.05 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       https://www.kernel.org/doc/man-pages/.

GNU                               2017-11-26                          ABORT(3)