int QEMU_Elf_init(QEMU_Elf *qe, const char *filename)
{
+ GError *gerr = NULL;
int err = 0;
- struct stat st;
- qe->fd = open(filename, O_RDONLY, 0);
- if (qe->fd == -1) {
- eprintf("Failed to open ELF dump file \'%s\'\n", filename);
+ qe->gmf = g_mapped_file_new(filename, TRUE, &gerr);
+ if (gerr) {
+ eprintf("Failed to map ELF dump file \'%s\'\n", filename);
return 1;
}
- fstat(qe->fd, &st);
- qe->size = st.st_size;
-
- qe->map = mmap(NULL, qe->size, PROT_READ | PROT_WRITE,
- MAP_PRIVATE, qe->fd, 0);
- if (qe->map == MAP_FAILED) {
- eprintf("Failed to map ELF file\n");
- err = 1;
- goto out_fd;
- }
+ qe->map = g_mapped_file_get_contents(qe->gmf);
+ qe->size = g_mapped_file_get_length(qe->gmf);
if (init_states(qe)) {
eprintf("Failed to extract QEMU CPU states\n");
return 0;
out_unmap:
- munmap(qe->map, qe->size);
-out_fd:
- close(qe->fd);
+ g_mapped_file_unref(qe->gmf);
return err;
}
void QEMU_Elf_exit(QEMU_Elf *qe)
{
exit_states(qe);
- munmap(qe->map, qe->size);
- close(qe->fd);
+ g_mapped_file_unref(qe->gmf);
}