PR_SET_MM_START_CODE(2const) PR_SET_MM_START_CODE(2const)
NAME
PR_SET_MM_START_CODE, PR_SET_MM_END_CODE - modify kernel memory map de-
scriptor fields
LIBRARY
Standard C library (libc, -lc)
SYNOPSIS
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_SET_MM, PR_SET_MM_START_CODE, unsigned long addr, 0L, 0L);
int prctl(PR_SET_MM, PR_SET_MM_END_CODE, unsigned long addr, 0L, 0L);
DESCRIPTION
PR_SET_MM_START_CODE
Set the address above which the program text can run. The corre-
sponding memory area must be readable and executable, but not
writable or shareable (see mprotect(2) and mmap(2) for more in-
formation).
PR_SET_MM_END_CODE
Set the address below which the program text can run. The corre-
sponding memory area must be readable and executable, but not
writable or shareable.
RETURN VALUE
On success, 0 is returned. On error, -1 is returned, and errno is set
to indicate the error.
ERRORS
EINVAL addr is greater than TASK_SIZE (the limit on the size of the user
address space for this architecture).
EINVAL The permissions of the corresponding memory area are not as re-
quired.
STANDARDS
Linux.
HISTORY
Linux 3.3.
SEE ALSO
prctl(2)
Linux man-pages 6.9.1 2024-06-01 PR_SET_MM_START_CODE(2const)
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