1235 struct kcore {  struct
1242 static int kcore__open(struct kcore *kcore, const char *filename)  in kcore__open()  argument
1246 	kcore->fd = open(filename, O_RDONLY);  in kcore__open()
1247 	if (kcore->fd == -1)  in kcore__open()
1250 	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);  in kcore__open()
1251 	if (!kcore->elf)  in kcore__open()
1254 	kcore->elfclass = gelf_getclass(kcore->elf);  in kcore__open()
1255 	if (kcore->elfclass == ELFCLASSNONE)  in kcore__open()
1258 	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);  in kcore__open()
1265 	elf_end(kcore->elf);  in kcore__open()
1267 	close(kcore->fd);  in kcore__open()
1271 static int kcore__init(struct kcore *kcore, char *filename, int elfclass,  in kcore__init()  argument
1274 	kcore->elfclass = elfclass;  in kcore__init()
1277 		kcore->fd = mkstemp(filename);  in kcore__init()
1279 		kcore->fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400);  in kcore__init()
1280 	if (kcore->fd == -1)  in kcore__init()
1283 	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);  in kcore__init()
1284 	if (!kcore->elf)  in kcore__init()
1287 	if (!gelf_newehdr(kcore->elf, elfclass))  in kcore__init()
1290 	memset(&kcore->ehdr, 0, sizeof(GElf_Ehdr));  in kcore__init()
1295 	elf_end(kcore->elf);  in kcore__init()
1297 	close(kcore->fd);  in kcore__init()
1302 static void kcore__close(struct kcore *kcore)  in kcore__close()  argument
1304 	elf_end(kcore->elf);  in kcore__close()
1305 	close(kcore->fd);  in kcore__close()
1308 static int kcore__copy_hdr(struct kcore *from, struct kcore *to, size_t count)  in kcore__copy_hdr()
1344 static int kcore__add_phdr(struct kcore *kcore, int idx, off_t offset,  in kcore__add_phdr()  argument
1358 	if (!gelf_update_phdr(kcore->elf, idx, &phdr))  in kcore__add_phdr()
1364 static off_t kcore__write(struct kcore *kcore)  in kcore__write()  argument
1366 	return elf_update(kcore->elf, ELF_C_WRITE);  in kcore__write()
1654 	struct kcore kcore;  in kcore_copy()  local
1655 	struct kcore extract;  in kcore_copy()
1672 	if (kcore__open(&kcore, kcore_filename))  in kcore_copy()
1675 	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))  in kcore_copy()
1678 	if (kcore__init(&extract, extract_filename, kcore.elfclass, false))  in kcore_copy()
1684 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_copy()
1702 	if (copy_bytes(kcore.fd, kci.kernel_map.offset, extract.fd, offset,  in kcore_copy()
1706 	if (modules_offset && copy_bytes(kcore.fd, kci.modules_map.offset,  in kcore_copy()
1724 	kcore__close(&kcore);  in kcore_copy()
1737 	struct kcore kcore;  in kcore_extract__create()  local
1738 	struct kcore extract;  in kcore_extract__create()
1743 	if (kcore__open(&kcore, kce->kcore_filename))  in kcore_extract__create()
1747 	if (kcore__init(&extract, kce->extract_filename, kcore.elfclass, true))  in kcore_extract__create()
1750 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_extract__create()
1760 	if (copy_bytes(kcore.fd, kce->offs, extract.fd, offset, kce->len))  in kcore_extract__create()
1770 	kcore__close(&kcore);  in kcore_extract__create()