PR_SET_MM_MAP2const
Modify kernel memory map descriptor fields
Usage
#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);
Library
Standard C library (libc, -lc)
Overview
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.
Releases
2 releases since Debian 13 (Trixie); the text changed 1 time.