diff options
Diffstat (limited to 'libc/sysdeps/linux/nds32/bits/mman.h')
| -rw-r--r-- | libc/sysdeps/linux/nds32/bits/mman.h | 72 |
1 files changed, 5 insertions, 67 deletions
diff --git a/libc/sysdeps/linux/nds32/bits/mman.h b/libc/sysdeps/linux/nds32/bits/mman.h index ac242e065..c1b263a4c 100644 --- a/libc/sysdeps/linux/nds32/bits/mman.h +++ b/libc/sysdeps/linux/nds32/bits/mman.h @@ -4,7 +4,7 @@ */ /* Definitions for POSIX memory map interface. Linux/NDS32 version. - Copyright (C) 1997, 2000, 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 1997-2018 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -28,37 +28,6 @@ /* The following definitions basically come from the kernel headers. But the kernel header is not namespace clean. */ - -/* Protections are chosen from these bits, OR'd together. The - implementation does not necessarily support PROT_EXEC or PROT_WRITE - without PROT_READ. The only guarantees are that no writing will be - allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */ - -#define PROT_READ 0x1 /* Page can be read. */ -#define PROT_WRITE 0x2 /* Page can be written. */ -#define PROT_EXEC 0x4 /* Page can be executed. */ -#define PROT_NONE 0x0 /* Page can not be accessed. */ -#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of - growsdown vma (mprotect only). */ -#define PROT_GROWSUP 0x02000000 /* Extend change to start of - growsup vma (mprotect only). */ - -/* Sharing types (must choose one and only one of these). */ -#define MAP_SHARED 0x01 /* Share changes. */ -#define MAP_PRIVATE 0x02 /* Changes are private. */ -#ifdef __USE_MISC -# define MAP_TYPE 0x0f /* Mask for type of mapping. */ -#endif - -/* Other flags. */ -#define MAP_FIXED 0x10 /* Interpret addr exactly. */ -#ifdef __USE_MISC -# define MAP_FILE 0x00 -# define MAP_ANONYMOUS 0x20 /* Don't use a file. */ -# define MAP_ANON MAP_ANONYMOUS -# define MAP_RENAME MAP_ANONYMOUS -#endif - /* These are Linux-specific. */ #ifdef __USE_MISC # define MAP_GROWSDOWN 0x0100 /* stack-like segment */ @@ -68,40 +37,9 @@ # define MAP_NORESERVE 0x4000 /* don't check for reservations */ # define MAP_POPULATE 0x08000 /* populate (prefault) pagetables */ # define MAP_NONBLOCK 0x10000 /* do not block on IO */ -# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could - be uninitialized. */ -#endif - -/* Flags to `msync'. */ -#define MS_ASYNC 1 /* Sync memory asynchronously. */ -#define MS_INVALIDATE 2 /* Invalidate the caches. */ -#define MS_SYNC 4 /* Synchronous memory sync. */ - -/* Flags for `mlockall'. */ -#define MCL_CURRENT 1 /* Lock all currently mapped pages. */ -#define MCL_FUTURE 2 /* Lock all additions to address - space. */ - -/* Advice to `madvise'. */ -#ifdef __USE_BSD -#define MADV_NORMAL 0 /* default page-in behavior */ -#define MADV_RANDOM 1 /* page-in minimum required */ -#define MADV_SEQUENTIAL 2 /* read-ahead aggressively */ -#define MADV_WILLNEED 3 /* pre-fault pages */ -#define MADV_DONTNEED 4 /* discard these pages */ -#endif - -/* The POSIX people had to invent similar names for the same things. */ -#ifdef __USE_XOPEN2K -# define POSIX_MADV_NORMAL 0 /* No further special treatment. */ -# define POSIX_MADV_RANDOM 1 /* Expect random page references. */ -# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */ -# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */ -# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */ +# define MAP_STACK 0x20000 /* Allocation is for a stack. */ +# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */ #endif -/* Flags for `mremap'. */ -#ifdef __USE_GNU -# define MREMAP_MAYMOVE 1 -# define MREMAP_FIXED 2 -#endif +/* Include generic Linux declarations. */ +#include <bits/mman-linux.h> |