PR_SET_MM_ARG_START(2const) — Linux manual page

PR_SET_MM_ARG_START(2const)                  PR_SET_MM_ARG_START(2const)

NAME         top

       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         top

       Standard C library (libc, -lc)

SYNOPSIS         top

       #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         top

       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 attribute set (see mmap(2)).

RETURN VALUE         top

       On success, 0 is returned.  On error, -1 is returned, and errno
       is set to indicate the error.

ERRORS         top

       EINVAL addr is greater than TASK_SIZE (the limit on the size of
              the user address space for this architecture).

STANDARDS         top

       Linux.

HISTORY         top

       Linux 3.5.

SEE ALSO         top

       prctl(2), PR_SET_MM(2const)

COLOPHON         top

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Linux man-pages 6.9.1          2024-06-01    PR_SET_MM_ARG_START(2const)

Pages that refer to this page: PR_SET_MM(2const),  PR_SET_MM_MAP(2const)

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