arch/powerpc/include/uapi/asm/mman.h

Source file repositories/reference/linux-study-clean/arch/powerpc/include/uapi/asm/mman.h

File Facts

System
Linux kernel
Corpus path
arch/powerpc/include/uapi/asm/mman.h
Extension
.h
Size
1294 bytes
Lines
36
Domain
Architecture Layer
Bucket
arch/powerpc
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _UAPI_ASM_POWERPC_MMAN_H
#define _UAPI_ASM_POWERPC_MMAN_H

#include <asm-generic/mman-common.h>


#define PROT_SAO	0x10		/* Strong Access Ordering */

#define MAP_RENAME      MAP_ANONYMOUS   /* In SunOS terminology */
#define MAP_NORESERVE   0x40            /* don't reserve swap pages */
#define MAP_LOCKED	0x80

#define MAP_GROWSDOWN	0x0100		/* stack-like segment */
#define MAP_DENYWRITE	0x0800		/* ETXTBSY */
#define MAP_EXECUTABLE	0x1000		/* mark it as an executable */


#define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
#define MCL_FUTURE      0x4000          /* lock all additions to address space */
#define MCL_ONFAULT	0x8000		/* lock all pages that are faulted in */

/* Override any generic PKEY permission defines */
#define PKEY_DISABLE_EXECUTE   0x4
#undef PKEY_ACCESS_MASK
#define PKEY_ACCESS_MASK       (PKEY_DISABLE_ACCESS |\
				PKEY_DISABLE_WRITE  |\
				PKEY_DISABLE_EXECUTE)
#endif /* _UAPI_ASM_POWERPC_MMAN_H */

Annotation

Implementation Notes