1217 struct kcore {  struct
1224 static int kcore__open(struct kcore *kcore, const char *filename)  in kcore__open()  argument
1228 	kcore->fd = open(filename, O_RDONLY);  in kcore__open()
1229 	if (kcore->fd == -1)  in kcore__open()
1232 	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);  in kcore__open()
1233 	if (!kcore->elf)  in kcore__open()
1236 	kcore->elfclass = gelf_getclass(kcore->elf);  in kcore__open()
1237 	if (kcore->elfclass == ELFCLASSNONE)  in kcore__open()
1240 	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);  in kcore__open()
1247 	elf_end(kcore->elf);  in kcore__open()
1249 	close(kcore->fd);  in kcore__open()
1253 static int kcore__init(struct kcore *kcore, char *filename, int elfclass,  in kcore__init()  argument
1256 	kcore->elfclass = elfclass;  in kcore__init()
1259 		kcore->fd = mkstemp(filename);  in kcore__init()
1261 		kcore->fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400);  in kcore__init()
1262 	if (kcore->fd == -1)  in kcore__init()
1265 	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);  in kcore__init()
1266 	if (!kcore->elf)  in kcore__init()
1269 	if (!gelf_newehdr(kcore->elf, elfclass))  in kcore__init()
1272 	memset(&kcore->ehdr, 0, sizeof(GElf_Ehdr));  in kcore__init()
1277 	elf_end(kcore->elf);  in kcore__init()
1279 	close(kcore->fd);  in kcore__init()
1284 static void kcore__close(struct kcore *kcore)  in kcore__close()  argument
1286 	elf_end(kcore->elf);  in kcore__close()
1287 	close(kcore->fd);  in kcore__close()
1290 static int kcore__copy_hdr(struct kcore *from, struct kcore *to, size_t count)  in kcore__copy_hdr()
1326 static int kcore__add_phdr(struct kcore *kcore, int idx, off_t offset,  in kcore__add_phdr()  argument
1340 	if (!gelf_update_phdr(kcore->elf, idx, &phdr))  in kcore__add_phdr()
1346 static off_t kcore__write(struct kcore *kcore)  in kcore__write()  argument
1348 	return elf_update(kcore->elf, ELF_C_WRITE);  in kcore__write()
1636 	struct kcore kcore;  in kcore_copy()  local
1637 	struct kcore extract;  in kcore_copy()
1654 	if (kcore__open(&kcore, kcore_filename))  in kcore_copy()
1657 	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))  in kcore_copy()
1660 	if (kcore__init(&extract, extract_filename, kcore.elfclass, false))  in kcore_copy()
1666 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_copy()
1684 	if (copy_bytes(kcore.fd, kci.kernel_map.offset, extract.fd, offset,  in kcore_copy()
1688 	if (modules_offset && copy_bytes(kcore.fd, kci.modules_map.offset,  in kcore_copy()
1706 	kcore__close(&kcore);  in kcore_copy()
1719 	struct kcore kcore;  in kcore_extract__create()  local
1720 	struct kcore extract;  in kcore_extract__create()
1725 	if (kcore__open(&kcore, kce->kcore_filename))  in kcore_extract__create()
1729 	if (kcore__init(&extract, kce->extract_filename, kcore.elfclass, true))  in kcore_extract__create()
1732 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_extract__create()
1742 	if (copy_bytes(kcore.fd, kce->offs, extract.fd, offset, kce->len))  in kcore_extract__create()
1752 	kcore__close(&kcore);  in kcore_extract__create()