plucky (2) PR_SET_MM_END_DATA.2const.gz

NAME

       PR_SET_MM_START_DATA, PR_SET_MM_END_DATA - 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_DATA, unsigned long addr, 0L, 0L);
       int prctl(PR_SET_MM, PR_SET_MM_END_DATA, unsigned long addr, 0L, 0L);

DESCRIPTION

       PR_SET_MM_START_DATA
              Set   the  address  above  which  initialized  and  uninitialized  (bss)  data  are  placed.   The
              corresponding memory area must be readable and writable, but not executable or shareable.

       PR_SET_MM_END_DATA
              Set  the  address  below  which  initialized  and  uninitialized  (bss)  data  are  placed.    The
              corresponding memory area must be readable and writable, but not executable 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 required.

STANDARDS

       Linux.

HISTORY

       Linux 3.3.

SEE ALSO

       prctl(2)