PR_SET_MM_MAP(2const)                                    PR_SET_MM_MAP(2const)

NAME
       PR_SET_MM_MAP, PR_SET_MM_MAP_SIZE - 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_MAP,
                 struct prctl_mm_map *map, unsigned long size, 0L);
       int prctl(PR_SET_MM, PR_SET_MM_MAP_SIZE, unsigned int *size, 0L, 0L);

DESCRIPTION
       PR_SET_MM_MAP
              Provides one-shot access to all the addresses modifyable with
              PR_SET_MM(2const) by passing in a struct prctl_mm_map (as
              defined in <linux/prctl.h>).  The size argument should provide
              the size of the struct.

       PR_SET_MM_MAP_SIZE
              Returns (via the size argument) the size of the struct
              prctl_mm_map the kernel expects.  This allows user space to find
              a compatible struct.

       These features are available only if the kernel is built with the
       CONFIG_CHECKPOINT_RESTORE option enabled.

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

ERRORS
       EINVAL The third argument is an invalid address.

STANDARDS
       Linux.

HISTORY
       Linux 3.18.

SEE ALSO
       prctl(2), PR_SET_MM(2const), PR_SET_MM_START_CODE(2const),
       PR_SET_MM_END_CODE(2const), PR_SET_MM_START_DATA(2const),
       PR_SET_MM_END_DATA(2const), PR_SET_MM_START_STACK(2const),
       PR_SET_MM_START_BRK(2const), PR_SET_MM_BRK(2const),
       PR_SET_MM_ARG_START(2const), PR_SET_MM_ARG_END(2const),
       PR_SET_MM_ENV_START(2const), PR_SET_MM_ENV_END(2const),
       PR_SET_MM_EXE_FILE(2const)

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