ABORT(3) Linux Programmer's Manual ABORT(3)
NAME
abort - cause abnormal process termination
SYNOPSIS
#include <stdlib.h>
void abort(void);
DESCRIPTION
The abort() 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
attributes(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
behavior, 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
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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)