196 lines
5.2 KiB
HTML
196 lines
5.2 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 PTHREAD_ATTR_SETSTACKADDR</TITLE>
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</HEAD><BODY>
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<H1>PTHREAD_ATTR_SETSTACKADDR</H1>
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Section: Linux Programmer's Manual (3)<BR>Updated: 2017-09-15<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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pthread_attr_setstackaddr, pthread_attr_getstackaddr -
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set/get stack address attribute in thread attributes object
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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/pthread.h">pthread.h</A>></B>
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<B>int pthread_attr_setstackaddr(pthread_attr_t *</B><I>attr</I><B>, void *</B><I>stackaddr</I><B>);</B>
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<B>int pthread_attr_getstackaddr(const pthread_attr_t *</B><I>attr</I><B>, void **</B><I>stackaddr</I><B>);</B>
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Compile and link with <I>-pthread</I>.
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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These functions are obsolete:
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<B>do not use them.</B>
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Use
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_setstack">pthread_attr_setstack</A></B>(3)
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and
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_getstack">pthread_attr_getstack</A></B>(3)
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instead.
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<P>
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The
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<B>pthread_attr_setstackaddr</B>()
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function sets the stack address attribute of the
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thread attributes object referred to by
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<I>attr</I>
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to the value specified in
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<I>stackaddr</I>.
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This attribute specifies the location of the stack that should
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be used by a thread that is created using the thread attributes object
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<I>attr</I>.
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<P>
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<I>stackaddr</I>
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should point to a buffer of at least
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<B>PTHREAD_STACK_MIN</B>
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bytes that was allocated by the caller.
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The pages of the allocated buffer should be both readable and writable.
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<P>
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The
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<B>pthread_attr_getstackaddr</B>()
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function returns the stack address attribute of the
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thread attributes object referred to by
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<I>attr</I>
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in the buffer pointed to by
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<I>stackaddr</I>.
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<A NAME="lbAE"> </A>
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<H2>RETURN VALUE</H2>
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On success, these functions return 0;
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on error, they return a nonzero error number.
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<A NAME="lbAF"> </A>
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<H2>ERRORS</H2>
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No errors are defined
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(but applications should nevertheless
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handle a possible error return).
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<A NAME="lbAG"> </A>
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<H2>VERSIONS</H2>
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These functions are provided by glibc since version 2.1.
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<A NAME="lbAH"> </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>pthread_attr_setstackaddr</B>(),
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<B>pthread_attr_getstackaddr</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="lbAI"> </A>
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<H2>CONFORMING TO</H2>
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POSIX.1-2001 specifies these functions but marks them as obsolete.
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POSIX.1-2008 removes the specification of these functions.
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<A NAME="lbAJ"> </A>
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<H2>NOTES</H2>
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<I>Do not use these functions!</I>
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They cannot be portably used, since they provide no way of specifying
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the direction of growth or the range of the stack.
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For example, on architectures with a stack that grows downward,
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<I>stackaddr</I>
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specifies the next address past the
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<I>highest</I>
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address of the allocated stack area.
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However, on architectures with a stack that grows upward,
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<I>stackaddr</I>
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specifies the
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<I>lowest</I>
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address in the allocated stack area.
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By contrast, the
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<I>stackaddr</I>
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used by
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_setstack">pthread_attr_setstack</A></B>(3)
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and
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_getstack">pthread_attr_getstack</A></B>(3),
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is always a pointer to the lowest address in the allocated stack area
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(and the
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<I>stacksize</I>
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argument specifies the range of the stack).
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<A NAME="lbAK"> </A>
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<H2>SEE ALSO</H2>
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_init">pthread_attr_init</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_setstack">pthread_attr_setstack</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_attr_setstacksize">pthread_attr_setstacksize</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?3+pthread_create">pthread_create</A></B>(3),
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<B><A HREF="/cgi-bin/man/man2html?7+pthreads">pthreads</A></B>(7)
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<A NAME="lbAL"> </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">ERRORS</A><DD>
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<DT id="6"><A HREF="#lbAG">VERSIONS</A><DD>
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<DT id="7"><A HREF="#lbAH">ATTRIBUTES</A><DD>
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<DT id="8"><A HREF="#lbAI">CONFORMING TO</A><DD>
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<DT id="9"><A HREF="#lbAJ">NOTES</A><DD>
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<DT id="10"><A HREF="#lbAK">SEE ALSO</A><DD>
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<DT id="11"><A HREF="#lbAL">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: 00:05:53 GMT, March 31, 2021
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