#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; | |
} |