rewrite sys_mmap() as sys_new_mmap()

kernel/include/mman.h

@@ -0,0 +1,34 @@
+#ifndef HEADER_MMAN_H
+#define HEADER_MMAN_H
+
+/*
+ * memory protection
+ */
+#define	PROT_NONE	0
+#define	PROT_READ	0x01
+#define	PROT_WRITE	0x02
+#define	PROT_EXEC	0x04
+
+/* for mprotect */
+#define	PROT_GROWSDOWN	0x01000000
+#define	PROT_GROWSUP	0x02000000
+
+/*
+ * mapping flags
+ */
+#define	MAP_SHARED	0x01
+#define	MAP_PRIVATE	0x02
+#define	MAP_FIXED	0x10
+#define	MAP_ANONYMOUS	0x20
+#define	MAP_32BIT	0x40
+#define	MAP_GROWSDOWN	0x0100
+#define	MAP_DENYWRITE	0x0800
+#define	MAP_EXECUTABLE	0x1000
+#define	MAP_LOCKED	0x2000
+#define	MAP_NORESERVE	0x4000
+#define	MAP_POPULATE	0x8000
+#define	MAP_NONBLOCK	0x00010000
+#define	MAP_STACK	0x00020000
+#define	MAP_HUGETLB	0x00040000
+
+#endif /* HEADER_MMAN_H */