Movatterモバイル変換

PR_SET_MM(2const) — Linux manual page

PR_SET_MM(2const)PR_SET_MM(2const)

NAME        top

       PR_SET_MM - modify kernel memory map descriptor fields

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, longop, ...);

DESCRIPTION        top

       Modify certain kernel memory map descriptor fields of the calling       process.  Usually these fields are set by the kernel and dynamic       loader (seeld.so(8) for more information) and a regular       application should not use this feature.  However, there are       cases, such as self-modifying programs, where a program might find       it useful to change its own memory map.       The calling process must have theCAP_SYS_RESOURCEcapability.       The value inop is one of the options below.PR_SET_MM_START_CODEPR_SET_MM_END_CODEPR_SET_MM_START_DATAPR_SET_MM_END_DATAPR_SET_MM_START_STACKPR_SET_MM_START_BRKPR_SET_MM_BRKPR_SET_MM_ARG_STARTPR_SET_MM_ARG_ENDPR_SET_MM_ENV_STARTPR_SET_MM_ENV_ENDPR_SET_MM_AUXVPR_SET_MM_EXE_FILEPR_SET_MM_MAPPR_SET_MM_MAP_SIZE

RETURN VALUE        top

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

ERRORS        top

EINVALop is not a valid value.EPERMThe caller does not have theCAP_SYS_RESOURCEcapability.

STANDARDS        top

       Linux.

HISTORY        top

       Linux 3.3.       Before Linux 3.10, this feature is available only if the kernel is       built with theCONFIG_CHECKPOINT_RESTOREoption enabled.

SEE ALSO        top

prctl(2),PR_SET_MM_START_CODE(2const),PR_SET_MM_END_CODE(2const),PR_SET_MM_START_DATA(2const),PR_SET_MM_END_DATA(2const),PR_SET_MM_START_STACK(2const),PR_SET_MM_START_BRK(2const),PR_SET_MM_BRK(2const),PR_SET_MM_ARG_START(2const),PR_SET_MM_ARG_END(2const),PR_SET_MM_ENV_START(2const),PR_SET_MM_ENV_END(2const),PR_SET_MM_EXE_FILE(2const),PR_SET_MM_MAP(2const),PR_SET_MM_MAP_SIZE(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            2025-05-17PR_SET_MM(2const)

Pages that refer to this page:prctl(2), PR_SET_MM_ARG_START(2const), PR_SET_MM_AUXV(2const), PR_SET_MM_BRK(2const), PR_SET_MM_EXE_FILE(2const), PR_SET_MM_MAP(2const), PR_SET_MM_START_BRK(2const), PR_SET_MM_START_STACK(2const)

HTML rendering created 2025-09-06 byMichael Kerrisk, author ofThe Linux Programming Interface. For details of in-depthLinux/UNIX system programming training courses that I teach, lookhere. Hosting byjambit GmbH.