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ABORT(3) Linux Programmer's Manual ABORT(3)
abort - cause abnormal process termination
#include <stdlib.h>
noreturn void abort(void);
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 signal for a second time.
The abort() function never returns.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────────────────────────────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────────────────────────────────┼───────────────┼─────────┤
│abort() │ Thread safety │ MT-Safe │
└──────────────────────────────────────┴───────────────┴─────────┘
SVr4, POSIX.1-2001, POSIX.1-2008, 4.3BSD, C89, C99.
Up until glibc 2.26, if the abort() function caused process
termination, all open streams were closed and flushed (as with
fclose(3)). However, in some cases this could result in
deadlocks and data corruption. 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".
gdb(1), sigaction(2), assert(3), exit(3), longjmp(3), raise(3)
This page is part of release 5.13 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 2021-03-22 ABORT(3)
Pages that refer to this page: assert(3), assert_perror(3), mallopt(3), mcheck(3), stdio(3), signal(7), signal-safety(7)
Copyright and license for this manual page
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