plucky (2) PR_SET_MM_END_CODE.2const.gz

NAME

       PR_SET_MM_START_CODE, PR_SET_MM_END_CODE - 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_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 corresponding memory area must be
              readable and executable, but not writable or shareable  (see  mprotect(2)  and  mmap(2)  for  more
              information).

       PR_SET_MM_END_CODE
              Set  the  address  below  which  the  program text can run.  The corresponding 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 required.

STANDARDS

       Linux.

HISTORY

       Linux 3.3.

SEE ALSO

       prctl(2)