linux - tools/include/uapi/asm-generic/mman.h

26 lines · 947 B

1	/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2	#ifndef __ASM_GENERIC_MMAN_H
3	#define __ASM_GENERIC_MMAN_H
4
5	#include <asm-generic/mman-common-tools.h>
6
7	#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
8	#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
9	#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
10	#define MAP_LOCKED 0x2000 /* pages are locked */
11	#define MAP_NORESERVE 0x4000 /* don't check for reservations */
12
13	/*
14	* Bits [26:31] are reserved, see asm-generic/hugetlb_encode.h
15	* for MAP_HUGETLB usage
16	*/
17
18	#define MCL_CURRENT 1 /* lock all current mappings */
19	#define MCL_FUTURE 2 /* lock all future mappings */
20	#define MCL_ONFAULT 4 /* lock all pages that are faulted in */
21
22	#define SHADOW_STACK_SET_TOKEN (1ULL << 0) /* Set up a restore token in the shadow stack */
23	#define SHADOW_STACK_SET_MARKER (1ULL << 1) /* Set up a top of stack marker in the shadow stack */
24
25
26	#endif /* __ASM_GENERIC_MMAN_H */