blob: d3cefa8284cc80f2b2205065372b1a3e30fef43b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
#include <sys/mman.h>
#include <fcntl.h>
#include <sys/stat.h>
#include "syscall.h"
#include "kstat.h"
const char unsigned *__map_file(const char *pathname, size_t *size)
{
struct kstat st;
const unsigned char *map = MAP_FAILED;
int fd = sys_open(pathname, O_RDONLY|O_CLOEXEC|O_NONBLOCK);
if (fd < 0) return 0;
if (!syscall(SYS_fstat, fd, &st)) {
map = __mmap(0, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
*size = st.st_size;
}
__syscall(SYS_close, fd);
return map == MAP_FAILED ? 0 : map;
}
|