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PR_SET_MM_AUXV(2const) — Linux manual page

PR_SET_MM_AUXV(2const)PR_SET_MM_AUXV(2const)

NAME        top

       PR_SET_MM_AUXV - set a new auxiliary vector

LIBRARY        top

       Standard C library (libc,-lc)

SYNOPSIS        top

#include <linux/prctl.h>/* Definition ofPR_*constants */#include <sys/prctl.h>int prctl(PR_SET_MM, PR_SET_MM_AUXV,unsigned longaddr, unsigned longsize, 0L);

DESCRIPTION        top

       Set a new auxiliary vector.addr should provide the address of the vector.size is the size       of the vector.

RETURN VALUE        top

       On success, 0 is returned.  On error, -1 is returned, anderrno is       set to indicate the error.

ERRORS        top

EINVALaddr is greater thanTASK_SIZE(the limit on the size of              the user address space for this architecture).

STANDARDS        top

       Linux.

HISTORY        top

       Linux 3.5.

SEE ALSO        top

prctl(2),PR_SET_MM(2const)

COLOPHON        top

       This page is part of theman-pages (Linux kernel and C library       user-space interface documentation) project.  Information about       the project can be found at        ⟨https://www.kernel.org/doc/man-pages/⟩.  If you have a bug report       for this manual page, see       ⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.       This page was obtained from the tarball man-pages-6.15.tar.gz       fetched from       ⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on       2025-08-11.  If you discover any rendering problems in this HTML       version of the page, or you believe there is a better or more up-       to-date source for the page, or you have corrections or       improvements to the information in this COLOPHON (which isnot       part of the original manual page), send a mail to       man-pages@man7.orgLinux man-pages 6.15            2025-06-02PR_SET_MM_AUXV(2const)

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