PR_SET_MM_START_STACK(2const)                    PR_SET_MM_START_STACK(2const)

NAME
       PR_SET_MM_START_STACK - 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_START_STACK, unsigned long addr, 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.

SEE ALSO
       prctl(2), PR_SET_MM(2const)

Linux man-pages 6.19              2026-02-08     PR_SET_MM_START_STACK(2const)