PR_SET_MM_MAP, PR_SET_MM_MAP_SIZE - modify kernel memory map descriptor fields

PR_SET_MM_MAP Provides one-shot access to all the addresses modifyable with PR_SET_MM(2const) by passing in a structprctl_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 structprctl_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.

EINVAL The third argument is an invalid address.

Linux 3.18.

Standard C library (libc, -lc)

PR_SET_MM_MAP, PR_SET_MM_MAP_SIZE - modify kernel memory map descriptor fields

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

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)

Linux.

#include<linux/prctl.h> /* Definition of PR_* constants */ #include<sys/prctl.h>intprctl(PR_SET_MM,PR_SET_MM_MAP,structprctl_mm_map*map,unsignedlongsize,0L);intprctl(PR_SET_MM,PR_SET_MM_MAP_SIZE,unsignedint*size,0L,0L);