PR_SET_MM(2const)

이름
PR_SET_MM - modify kernel memory map descriptor fields

라이브러리
표준 C 라이브러리 (libc, -lc)

요약
#include <linux/prctl.h>  /* PR_* 상수의 정의 */
#include <sys/prctl.h>

int prctl(PR_SET_MM, long op, ...);

설명
Modify certain kernel memory map descriptor fields of the calling process. Usually these fields are set by the kernel and dynamic loader (see ld.so(8) for more information) and a regular application should not use this feature. However, there are cases, such as self-modifying programs, where a program might find it useful to change its own memory map.

The calling process must have the CAP_SYS_RESOURCE capability. The value in op is one of the options below.

PR_SET_MM_START_CODE
PR_SET_MM_END_CODE
PR_SET_MM_START_DATA
PR_SET_MM_END_DATA
PR_SET_MM_START_STACK
PR_SET_MM_START_BRK
PR_SET_MM_BRK
PR_SET_MM_ARG_START
PR_SET_MM_ARG_END
PR_SET_MM_ENV_START
PR_SET_MM_ENV_END
PR_SET_MM_AUXV
PR_SET_MM_EXE_FILE
PR_SET_MM_MAP
PR_SET_MM_MAP_SIZE

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

에러

EINVAL
    op is not a valid value.

EPERM
    The caller does not have the CAP_SYS_RESOURCE capability.

표준
리눅스.

이력
Linux 3.3.

Before Linux 3.10, this feature is available only if the kernel is built with the CONFIG_CHECKPOINT_RESTORE option enabled.

추가 참조
prctl(2), 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), PR_SET_MM_MAP(2const), PR_SET_MM_MAP_SIZE(2const)

번역
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