diff options
Diffstat (limited to 'sysdeps/generic')
| -rw-r--r-- | sysdeps/generic/bits/mman.h (renamed from sysdeps/generic/sys/mman.h) | 66 |
1 files changed, 4 insertions, 62 deletions
diff --git a/sysdeps/generic/sys/mman.h b/sysdeps/generic/bits/mman.h index 8596e70211..0afdf202a1 100644 --- a/sysdeps/generic/sys/mman.h +++ b/sysdeps/generic/bits/mman.h @@ -1,4 +1,4 @@ -/* Definitions for BSD-style memory management. Generic/4.4 BSD version. +/* Definitions for BSD-style memory management. Copyright (C) 1994, 1995, 1996, 1997, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. @@ -21,15 +21,8 @@ (such as GNU) where these facilities are not system services but can be emulated in the C library, these are the definitions we emulate. */ -#ifndef _SYS_MMAN_H - -#define _SYS_MMAN_H 1 -#include <features.h> - -#include <bits/types.h> -#define __need_size_t -#include <stddef.h> - +#ifndef _BITS_MMAN_H +#define _BITS_MMAN_H 1 /* Protections are chosen from these bits, OR'd together. The implementation does not necessarily support PROT_EXEC or PROT_WRITE @@ -41,7 +34,6 @@ #define PROT_WRITE 0x02 /* Pages can be written. */ #define PROT_EXEC 0x01 /* Pages can be executed. */ - /* Flags contain mapping type, sharing type and options. */ /* Mapping type (must choose one and only one of these). */ @@ -75,54 +67,4 @@ # define MADV_DONTNEED 4 /* Don't need these pages. */ #endif -/* Return value of `mmap' in case of an error. */ -#define MAP_FAILED ((__ptr_t) -1) - - -__BEGIN_DECLS -/* Map addresses starting near ADDR and extending for LEN bytes. from - OFFSET into the file FD describes according to PROT and FLAGS. If ADDR - is nonzero, it is the desired mapping address. If the MAP_FIXED bit is - set in FLAGS, the mapping will be at ADDR exactly (which must be - page-aligned); otherwise the system chooses a convenient nearby address. - The return value is the actual mapping address chosen or MAP_FAILED - for errors (in which case `errno' is set). A successful `mmap' call - deallocates any previous mapping for the affected region. */ - -#ifndef __USE_FILE_OFFSET64 -extern __ptr_t mmap __P ((__ptr_t __addr, size_t __len, int __prot, - int __flags, int __fd, __off_t __offset)); -#else -extern __ptr_t mmap __P ((__ptr_t __addr, size_t __len, int __prot, - int __flags, int __fd, __off_t __offset)) - __asm__ ("mmap64"); -#endif -#ifdef __USE_LARGEFILE64 -extern __ptr_t mmap64 __P ((__ptr_t __addr, size_t __len, int __prot, - int __flags, int __fd, __off64_t __offset)); -#endif - -/* Deallocate any mapping for the region starting at ADDR and extending LEN - bytes. Returns 0 if successful, -1 for errors (and sets errno). */ -extern int munmap __P ((__ptr_t __addr, size_t __len)); - -/* Change the memory protection of the region starting at ADDR and - extending LEN bytes to PROT. Returns 0 if successful, -1 for errors - (and sets errno). */ -extern int mprotect __P ((__ptr_t __addr, size_t __len, int __prot)); - -/* Synchronize the region starting at ADDR and extending LEN bytes with the - file it maps. Filesystem operations on a file being mapped are - unpredictable before this is done. Flags are from the MS_* set. */ -extern int msync __P ((__ptr_t __addr, size_t __len, int __flags)); - -#ifdef __USE_BSD -/* Advise the system about particular usage patterns the program follows - for the region starting at ADDR and extending LEN bytes. */ -extern int madvise __P ((__ptr_t __addr, size_t __len, int __advice)); -#endif - -__END_DECLS - - -#endif /* sys/mman.h */ +#endif /* bits/mman.h */ |