PR_SET_MM_BRK(2const) — Linux manual page

PR_SET_MM_BRK(2const)                              PR_SET_MM_BRK(2const)

NAME

       PR_SET_MM_BRK - 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_BRK, unsigned long addr, 0L, 0L);

DESCRIPTION

       Set the current brk(2) value.

       The requirements for the address are the same as for the
       PR_SET_MM_START_BRK option.

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 addr is less than or equal to the end of the data segment
              or specifies a value that would cause the RLIMIT_DATA
              resource limit to be exceeded.

STANDARDS

       Linux.

HISTORY

       Linux 3.3.

SEE ALSO

       prctl(2), PR_SET_MM(2const), PR_SET_MM_START_BRK(2const)

COLOPHON

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

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

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