diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/sys/mman.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sys/mman.h | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/sysdeps/unix/sysv/linux/sys/mman.h b/sysdeps/unix/sysv/linux/sys/mman.h index dc9f8f7e48..0f56a70c32 100644 --- a/sysdeps/unix/sysv/linux/sys/mman.h +++ b/sysdeps/unix/sysv/linux/sys/mman.h @@ -23,20 +23,12 @@ #include <features.h> #include <bits/types.h> -#define __need_size_t -#include <stddef.h> - -#include <sys/cdefs.h> /* Get the bit values from the kernel header file. */ -#include <linux/mman.h> +#include <bits/mman.h> -#ifndef MAP_ANON -#define MAP_ANON MAP_ANONYMOUS -#endif -#ifndef MAP_FILE -#define MAP_FILE 0 -#endif +/* Return value of `mmap' in case of an error. */ +#define MAP_FAILED ((__caddr_t) -1) __BEGIN_DECLS /* Map addresses starting near ADDR and extending for LEN bytes. from @@ -44,7 +36,7 @@ __BEGIN_DECLS 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 (caddr_t) -1 + 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. */ @@ -69,9 +61,11 @@ extern int mprotect __P ((__caddr_t __addr, size_t __len, int __prot)); unpredictable before this is done. Flags are from the MS_* set. */ extern int msync __P ((__caddr_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 ((__caddr_t __addr, size_t __len, int __advice)); +#endif /* Cause all currently mapped pages of the process to be memory resident until unlocked by a call to the `munlockall', until the process exits, @@ -89,6 +83,7 @@ extern int mlock __P ((__caddr_t __addr, size_t __len)); /* Unlock whole pages previously mapped by the range [ADDR,ADDR+LEN). */ extern int munlock __P ((__caddr_t __addr, size_t __len)); +#ifdef __USE_MISC /* Remap pages mapped by the range [ADDR,ADDR+OLD_LEN) to new length NEW_LEN. If MAY_MOVE is MREMAP_MAYMOVE the returned address may differ from ADDR. */ @@ -96,6 +91,7 @@ extern __caddr_t __mremap __P ((__caddr_t __addr, size_t __old_len, size_t __new_len, int __may_move)); extern __caddr_t mremap __P ((__caddr_t __addr, size_t __old_len, size_t __new_len, int __may_move)); +#endif __END_DECLS |