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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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PR_SET_MM(2const) PR_SET_MM(2const)
PR_SET_MM - modify kernel memory map descriptor fields
Standard C library (libc, -lc)
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_SET_MM, long op, ...);
Modify certain kernel memory map descriptor fields of the calling
process. Usually these fields are set by the kernel and dynamic
loader (see ld.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 the CAP_SYS_RESOURCE capability.
The value in op is one of the options below.
PR_SET_MM_START_CODE
PR_SET_MM_END_CODE
PR_SET_MM_START_DATA
PR_SET_MM_END_DATA
PR_SET_MM_START_STACK
PR_SET_MM_START_BRK
PR_SET_MM_BRK
PR_SET_MM_ARG_START
PR_SET_MM_ARG_END
PR_SET_MM_ENV_START
PR_SET_MM_ENV_END
PR_SET_MM_AUXV
PR_SET_MM_EXE_FILE
PR_SET_MM_MAP
PR_SET_MM_MAP_SIZE
On success, 0 is returned. On error, -1 is returned, and errno
is set to indicate the error.
EINVAL op is not a valid value.
EPERM The caller does not have the CAP_SYS_RESOURCE capability.
Linux.
Linux 3.3.
Before Linux 3.10, this feature is available only if the kernel
is built with the CONFIG_CHECKPOINT_RESTORE option enabled.
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)
This page is part of the man-pages (Linux kernel and C library
user-space interface documentation) project. Information about
the project can be found at
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for this manual page, see
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This page was obtained from the tarball man-pages-6.9.1.tar.gz
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⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on
2024-06-26. 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 is not
part of the original manual page), send a mail to
[email protected]
Linux man-pages 6.9.1 2024-06-01 PR_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)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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