151 lines
3.7 KiB
HTML
151 lines
3.7 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of ABORT</TITLE>
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</HEAD><BODY>
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<H1>ABORT</H1>
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Section: Linux Programmer's Manual (3)<BR>Updated: 2017-11-26<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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abort - cause abnormal process termination
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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<B>#include <<A HREF="file:///usr/include/stdlib.h">stdlib.h</A>></B>
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<B>void abort(void);</B>
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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The
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<B>abort</B>()
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function first unblocks the
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<B>SIGABRT</B>
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signal, and then raises that signal for the calling process
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(as though
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<B><A HREF="/cgi-bin/man/man2html?3+raise">raise</A></B>(3)
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was called).
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This results in the abnormal termination of the process unless the
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<B>SIGABRT</B>
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signal is caught and the signal handler does not return
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(see
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<B><A HREF="/cgi-bin/man/man2html?3+longjmp">longjmp</A></B>(3)).
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<P>
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If the
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<B>SIGABRT</B>
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signal is ignored, or caught by a handler that returns, the
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<B>abort</B>()
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function will still terminate the process.
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It does this by restoring the default disposition for
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<B>SIGABRT</B>
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and then raising the signal for a second time.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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The
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<B>abort</B>()
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function never returns.
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<A NAME="lbAF"> </A>
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<H2>ATTRIBUTES</H2>
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For an explanation of the terms used in this section, see
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<B><A HREF="/cgi-bin/man/man2html?7+attributes">attributes</A></B>(7).
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<TABLE BORDER>
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<TR VALIGN=top><TD><B>Interface</B></TD><TD><B>Attribute</B></TD><TD><B>Value</B><BR></TD></TR>
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<TR VALIGN=top><TD>
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<B>abort</B>()
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</TD><TD>Thread safety</TD><TD>MT-Safe<BR></TD></TR>
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</TABLE>
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<A NAME="lbAG"> </A>
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<H2>NOTES</H2>
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Up until glibc 2.26,
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if the
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<B>abort</B>()
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function caused process termination,
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all open streams were closed and flushed (as with
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<B><A HREF="/cgi-bin/man/man2html?3+fclose">fclose</A></B>(3)).
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However, in some cases this could result in deadlocks and data corruption.
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Therefore, starting with glibc 2.27,
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<B>abort</B>()
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terminates the process without flushing streams.
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POSIX.1 permits either possible behavior, saying that
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<B>abort</B>()
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"may include an attempt to effect fclose() on all open streams".
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<A NAME="lbAH"> </A>
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<H2>CONFORMING TO</H2>
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SVr4, POSIX.1-2001, POSIX.1-2008, 4.3BSD, C89, C99.
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<A NAME="lbAI"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?1+gdb">gdb</A></B>(1),
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<B><A HREF="/cgi-bin/man/man2html?2+sigaction">sigaction</A></B>(2),
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<B><A HREF="/cgi-bin/man/man2html?3+assert">assert</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+exit">exit</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+longjmp">longjmp</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+raise">raise</A></B>(3)
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<A NAME="lbAJ"> </A>
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<H2>COLOPHON</H2>
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This page is part of release 5.05 of the Linux
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<I>man-pages</I>
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project.
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A description of the project,
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information about reporting bugs,
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and the latest version of this page,
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can be found at
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<A HREF="https://www.kernel.org/doc/man-pages/.">https://www.kernel.org/doc/man-pages/.</A>
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<P>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="1"><A HREF="#lbAB">NAME</A><DD>
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<DT id="2"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="3"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="4"><A HREF="#lbAE">RETURN VALUE</A><DD>
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<DT id="5"><A HREF="#lbAF">ATTRIBUTES</A><DD>
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<DT id="6"><A HREF="#lbAG">NOTES</A><DD>
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<DT id="7"><A HREF="#lbAH">CONFORMING TO</A><DD>
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<DT id="8"><A HREF="#lbAI">SEE ALSO</A><DD>
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<DT id="9"><A HREF="#lbAJ">COLOPHON</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:05:35 GMT, March 31, 2021
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</BODY>
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</HTML>
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