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+'\" t
+.\" Copyright (c) 1993 by Thomas Koenig (ig25@rz.uni-karlsruhe.de)
+.\" and Copyright (C) 2008 Michael Kerrisk <mtk.manpages@gmail.com>
+.\"
+.\" SPDX-License-Identifier: Linux-man-pages-copyleft
+.\"
+.\" Modified Sat Jul 24 18:40:56 1993 by Rik Faith (faith@cs.unc.edu)
+.\" Modified 1995 by Mike Battersby (mib@deakin.edu.au)
+.\"
+.TH raise 3 2023-10-31 "Linux man-pages 6.06"
+.SH NAME
+raise \- send a signal to the caller
+.SH LIBRARY
+Standard C library
+.RI ( libc ", " \-lc )
+.SH SYNOPSIS
+.nf
+.B #include <signal.h>
+.P
+.BI "int raise(int " sig );
+.fi
+.SH DESCRIPTION
+The
+.BR raise ()
+function sends a signal to the calling process or thread.
+In a single-threaded program it is equivalent to
+.P
+.in +4n
+.EX
+kill(getpid(), sig);
+.EE
+.in
+.P
+In a multithreaded program it is equivalent to
+.P
+.in +4n
+.EX
+pthread_kill(pthread_self(), sig);
+.EE
+.in
+.P
+If the signal causes a handler to be called,
+.BR raise ()
+will return only after the signal handler has returned.
+.SH RETURN VALUE
+.BR raise ()
+returns 0 on success, and nonzero for failure.
+.SH ATTRIBUTES
+For an explanation of the terms used in this section, see
+.BR attributes (7).
+.TS
+allbox;
+lbx lb lb
+l l l.
+Interface	Attribute	Value
+T{
+.na
+.nh
+.BR raise ()
+T}	Thread safety	MT-Safe
+.TE
+.SH STANDARDS
+C11, POSIX.1-2008.
+.SH HISTORY
+POSIX.1-2001, C89.
+.P
+Since glibc 2.3.3,
+.BR raise ()
+is implemented by calling
+.BR tgkill (2),
+.\" 2.3.2 used the obsolete tkill(), if available.
+if the kernel supports that system call.
+Older glibc versions implemented
+.BR raise ()
+using
+.BR kill (2).
+.SH SEE ALSO
+.BR getpid (2),
+.BR kill (2),
+.BR sigaction (2),
+.BR signal (2),
+.BR pthread_kill (3),
+.BR signal (7)