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authorSzabolcs Nagy <nsz@port70.net>2016-03-18 00:57:52 +0000
committerRich Felker <dalias@aerifal.cx>2016-03-18 22:40:28 -0400
commite9f1c7981ae00ad25d59018c1df26897e2effdad (patch)
treec42a756e09b9ccb21497bf88fb3e50cc90fe8379 /include/sys
parent4aac019a0efd59011a48d031ad046c934c7e8365 (diff)
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deduplicate bits/mman.h
currently five targets use the same mman.h constants and the rest share most constants too, so move them to sys/mman.h before the bits/mman.h include where the differences can be corrected by redefinition of the macros. this fixes two minor bugs: POSIX_MADV_DONTNEED was wrong on most targets (it should be the same as MADV_DONTNEED), and sh defined the x86-only MAP_32BIT mmap flag.
Diffstat (limited to 'include/sys')
-rw-r--r--include/sys/mman.h59
1 files changed, 59 insertions, 0 deletions
diff --git a/include/sys/mman.h b/include/sys/mman.h
index a1864ec8..596a03a7 100644
--- a/include/sys/mman.h
+++ b/include/sys/mman.h
@@ -16,6 +16,65 @@ extern "C" {
#include <bits/alltypes.h>
+#define MAP_FAILED ((void *) -1)
+
+#define MAP_SHARED 0x01
+#define MAP_PRIVATE 0x02
+#define MAP_TYPE 0x0f
+#define MAP_FIXED 0x10
+#define MAP_ANON 0x20
+#define MAP_ANONYMOUS MAP_ANON
+#define MAP_NORESERVE 0x4000
+#define MAP_GROWSDOWN 0x0100
+#define MAP_DENYWRITE 0x0800
+#define MAP_EXECUTABLE 0x1000
+#define MAP_LOCKED 0x2000
+#define MAP_POPULATE 0x8000
+#define MAP_NONBLOCK 0x10000
+#define MAP_STACK 0x20000
+#define MAP_HUGETLB 0x40000
+#define MAP_FILE 0
+
+#define PROT_NONE 0
+#define PROT_READ 1
+#define PROT_WRITE 2
+#define PROT_EXEC 4
+#define PROT_GROWSDOWN 0x01000000
+#define PROT_GROWSUP 0x02000000
+
+#define MS_ASYNC 1
+#define MS_INVALIDATE 2
+#define MS_SYNC 4
+
+#define MCL_CURRENT 1
+#define MCL_FUTURE 2
+#define MCL_ONFAULT 4
+
+#define POSIX_MADV_NORMAL 0
+#define POSIX_MADV_RANDOM 1
+#define POSIX_MADV_SEQUENTIAL 2
+#define POSIX_MADV_WILLNEED 3
+#define POSIX_MADV_DONTNEED 4
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MADV_NORMAL 0
+#define MADV_RANDOM 1
+#define MADV_SEQUENTIAL 2
+#define MADV_WILLNEED 3
+#define MADV_DONTNEED 4
+#define MADV_REMOVE 9
+#define MADV_DONTFORK 10
+#define MADV_DOFORK 11
+#define MADV_MERGEABLE 12
+#define MADV_UNMERGEABLE 13
+#define MADV_HUGEPAGE 14
+#define MADV_NOHUGEPAGE 15
+#define MADV_DONTDUMP 16
+#define MADV_DODUMP 17
+#define MADV_HWPOISON 100
+#define MADV_SOFT_OFFLINE 101
+#endif
+
#include <bits/mman.h>
void *mmap (void *, size_t, int, int, int, off_t);