PR_SET_MM_ARG_START(2const) PR_SET_MM_ARG_START(2const)
NAME
PR_SET_MM_ARG_START, PR_SET_MM_ARG_END, PR_SET_MM_ENV_START,
PR_SET_MM_ENV_END - modify kernel memory map descriptor 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_ARG_START, unsigned long addr, 0L, 0L);
int prctl(PR_SET_MM, PR_SET_MM_ARG_END, unsigned long addr, 0L, 0L);
int prctl(PR_SET_MM, PR_SET_MM_ENV_START, unsigned long addr, 0L, 0L);
int prctl(PR_SET_MM, PR_SET_MM_ENV_END, unsigned long addr, 0L, 0L);
DESCRIPTION
PR_SET_MM_ARG_START
Set the address above which the program command line is placed.
PR_SET_MM_ARG_END
Set the address below which the program command line is placed.
PR_SET_MM_ENV_START
Set the address above which the program environment is placed.
PR_SET_MM_ENV_END
Set the address below which the program environment is placed.
The address passed with these calls should belong to a process stack
area. Thus, the corresponding memory area must be readable, writable,
and (depending on the kernel configuration) have the MAP_GROWSDOWN at-
tribute set (see mmap(2)).
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).
STANDARDS
Linux.
HISTORY
Linux 3.5.
SEE ALSO
prctl(2), PR_SET_MM(2const)
Linux man-pages 6.9.1 2024-06-01 PR_SET_MM_ARG_START(2const)
Generated by dwww version 1.16 on Tue Dec 16 04:26:18 CET 2025.