1#include <sys/mman.h>
 2#include <fcntl.h>
 3#include <sys/stat.h>
 4#include "syscall.h"
 5
 6const char unsigned *__map_file(const char *pathname, size_t *size)
 7{
 8	struct stat st;
 9	const unsigned char *map = MAP_FAILED;
10	int fd = sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
11	if (fd < 0) return 0;
12	if (!__fstat(fd, &st)) {
13		map = __mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
14		*size = st.st_size;
15	}
16	__syscall(SYS_close, fd);
17	return map == MAP_FAILED ? 0 : map;
18}