34 static void check_bytes(char *addr)  in check_bytes()  argument
36 	printf("First hex is %x\n", *((unsigned int *)addr));  in check_bytes()
39 static void write_bytes(char *addr)  in write_bytes()  argument
44 		*(addr + i) = (char)i;  in write_bytes()
47 static int read_bytes(char *addr)  in read_bytes()  argument
51 	check_bytes(addr);  in read_bytes()
53 		if (*(addr + i) != (char)i) {  in read_bytes()
62 	void *addr;  in main()  local
65 	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, 0, 0);  in main()
66 	if (addr == MAP_FAILED) {  in main()
71 	printf("Returned address is %p\n", addr);  in main()
72 	check_bytes(addr);  in main()
73 	write_bytes(addr);  in main()
74 	ret = read_bytes(addr);  in main()
77 	if (munmap(addr, LENGTH)) {  in main()