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 */

kernel/include/process.h

@@ -13,6 +13,13 @@
 #define VR_IO_NOCACHE      0x100
 #define VR_REMOTE          0x200
 #define VR_DEMAND_PAGING   0x1000
+#define	VR_PROT_NONE       0x00000000
+#define	VR_PROT_READ       0x00010000
+#define	VR_PROT_WRITE      0x00020000
+#define	VR_PROT_EXEC       0x00040000
+#define	VR_PROT_MASK       0x00070000
+
+#define	PROT_TO_VR_FLAG(prot)	(((unsigned long)(prot) << 16) & VR_PROT_MASK)
 
 #define PS_RUNNING           0x1
 #define PS_INTERRUPTIBLE     0x2
@@ -32,7 +39,6 @@
 struct vm_range {
 	struct list_head list;
 	unsigned long start, end;
-	unsigned long phys;
 	unsigned long flag;
 };
 
@@ -101,6 +107,8 @@ int add_process_memory_range(struct process *process,
                              unsigned long phys, unsigned long flag);
 int remove_process_memory_range(
 		struct process *process, unsigned long start, unsigned long end);
+struct vm_range *lookup_process_memory_range(
+		struct process *proc, uintptr_t start, uintptr_t end);
 int remove_process_region(struct process *proc,
                           unsigned long start, unsigned long end);
 struct program_load_desc;

kernel/include/syscall.h

@@ -82,7 +82,11 @@ struct program_image_section {
 	unsigned long len;
 	unsigned long remote_pa;
 	unsigned long filesz, offset;
+	int prot;
+	int padding;
+#if 0
 	void *source;
+#endif
 };
 
 struct program_load_desc {