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.sh colophon
this page is part of release 5.13 of the linux
.i 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/.
.so man2/getxattr.2
.\" this manpage is copyright (c) 1992 drew eckhardt;
.\" and copyright (c) 1993 michael haardt, ian jackson.
.\"
.\" %%%license_start(verbatim)
.\" permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" since the linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. the author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. the author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\" %%%license_end
.\"
.\" modified wed jul 21 23:02:38 1993 by rik faith <[email protected]>
.\" modified 2001-11-17, aeb
.\"
.th _exit 2 2021-03-22 "linux" "linux programmer's manual"
.sh name
_exit, _exit \- terminate the calling process
.sh synopsis
.nf
.b #include <unistd.h>
.pp
.bi "noreturn void _exit(int " status );
.pp
.b #include <stdlib.h>
.pp
.bi "noreturn void _exit(int " status );
.fi
.pp
.rs -4
feature test macro requirements for glibc (see
.br feature_test_macros (7)):
.re
.pp
.br _exit ():
.nf
_isoc99_source || _posix_c_source >= 200112l
.fi
.sh description
.br _exit ()
terminates the calling process "immediately".
any open file descriptors belonging to the process are closed.
any children of the process are inherited by
.br init (1)
(or by the nearest "subreaper" process as defined through the use of the
.br prctl (2)
.b pr_set_child_subreaper
operation).
the process's parent is sent a
.b sigchld
signal.
.pp
the value
.i "status & 0xff"
is returned to the parent process as the process's exit status, and
can be collected by the parent using one of the
.br wait (2)
family of calls.
.pp
the function
.br _exit ()
is equivalent to
.br _exit ().
.sh return value
these functions do not return.
.sh conforming to
posix.1-2001, posix.1-2008, svr4, 4.3bsd.
the function
.br _exit ()
was introduced by c99.
.sh notes
for a discussion on the effects of an exit, the transmission of
exit status, zombie processes, signals sent, and so on, see
.br exit (3).
.pp