Framework for exporting system header to user space (#59)

[lunaix-os.git] / lunaix-os / includes / usr / lunaix / mman.h

diff --git a/lunaix-os/includes/usr/lunaix/mman.h b/lunaix-os/includes/usr/lunaix/mman.h
new file mode 100644 (file)
index 0000000..8f9641d
--- /dev/null
+++ b/lunaix-os/includes/usr/lunaix/mman.h
@@ -0,0 +1,43 @@
+#ifndef _LUNAIX_UHDR_SYS_MMAN_H
+#define _LUNAIX_UHDR_SYS_MMAN_H
+
+// POSIX compliant.
+
+// identity mapped to region attributes
+#define PROT_READ (1 << 2)
+#define PROT_WRITE (1 << 3)
+#define PROT_EXEC (1 << 4)
+#define PROT_NONE 0
+
+// identity mapped to region attributes
+
+#define MAP_WSHARED 0x2
+#define MAP_RSHARED 0x1
+#define MAP_SHARED MAP_WSHARED
+#define MAP_PRIVATE MAP_RSHARED
+#define MAP_EXCLUSIVE 0x0
+#define MAP_ANON (1 << 5)
+#define MAP_ANONYMOUS MAP_ANON
+#define MAP_STACK 0 // no effect in Lunaix
+
+// other MAP_* goes should beyond 0x20
+
+#define MAP_FIXED 0x40
+#define MAP_FIXED_NOREPLACE 0x80
+
+#define MS_ASYNC 0x1
+#define MS_SYNC 0x2
+#define MS_INVALIDATE 0x4
+#define MS_INVALIDATE_ALL 0x8
+
+struct usr_mmap_param
+{
+    void* addr;
+    unsigned long length;
+    int proct;
+    int flags;
+    int fd;
+    unsigned long offset;
+};
+
+#endif /* _LUNAIX_UHDR_MMAN_H */