pr_set_mm_start_stack(2const) - BetterMan

pr_set_mm_start_stack(2const)

modify kernel memory map descriptor fields

distropkg manpages-dev@6.9.1-1dataset 2026-04-01T06:19:02Z+debian+ec4110e+mandoc:1.14.6-4

Synopsis

#include <linux/prctl.h>
  /* Definition of 
PR_*
 constants */
#include <sys/prctl.h>
int prctl(PR_SET_MM, PR_SET_MM_START_STACK, unsigned long 
addr
, 0L, 0L);

—

Options · 2

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 required.

NAME

PR_SET_MM_START_STACK - modify kernel memory map descriptor fields

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

bash

#include <linux/prctl.h>\n  /* Definition of \nPR_*\n constants */
\n#include <sys/prctl.h>

bash

int prctl(PR_SET_MM, PR_SET_MM_START_STACK, unsigned long \naddr\n, 0L, 0L);

DESCRIPTION

Set the start address of the stack. The corresponding memory area must be readable and writable.

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 required.

STANDARDS

Linux.

HISTORY

Linux 3.3.