1253 struct kcore {  struct
1260 static int kcore__open(struct kcore *kcore, const char *filename)  in kcore__open()  argument
1264 	kcore->fd = open(filename, O_RDONLY);  in kcore__open()
1265 	if (kcore->fd == -1)  in kcore__open()
1268 	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);  in kcore__open()
1269 	if (!kcore->elf)  in kcore__open()
1272 	kcore->elfclass = gelf_getclass(kcore->elf);  in kcore__open()
1273 	if (kcore->elfclass == ELFCLASSNONE)  in kcore__open()
1276 	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);  in kcore__open()
1283 	elf_end(kcore->elf);  in kcore__open()
1285 	close(kcore->fd);  in kcore__open()
1289 static int kcore__init(struct kcore *kcore, char *filename, int elfclass,  in kcore__init()  argument
1292 	kcore->elfclass = elfclass;  in kcore__init()
1295 		kcore->fd = mkstemp(filename);  in kcore__init()
1297 		kcore->fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400);  in kcore__init()
1298 	if (kcore->fd == -1)  in kcore__init()
1301 	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);  in kcore__init()
1302 	if (!kcore->elf)  in kcore__init()
1305 	if (!gelf_newehdr(kcore->elf, elfclass))  in kcore__init()
1308 	memset(&kcore->ehdr, 0, sizeof(GElf_Ehdr));  in kcore__init()
1313 	elf_end(kcore->elf);  in kcore__init()
1315 	close(kcore->fd);  in kcore__init()
1320 static void kcore__close(struct kcore *kcore)  in kcore__close()  argument
1322 	elf_end(kcore->elf);  in kcore__close()
1323 	close(kcore->fd);  in kcore__close()
1326 static int kcore__copy_hdr(struct kcore *from, struct kcore *to, size_t count)  in kcore__copy_hdr()
1362 static int kcore__add_phdr(struct kcore *kcore, int idx, off_t offset,  in kcore__add_phdr()  argument
1376 	if (!gelf_update_phdr(kcore->elf, idx, &phdr))  in kcore__add_phdr()
1382 static off_t kcore__write(struct kcore *kcore)  in kcore__write()  argument
1384 	return elf_update(kcore->elf, ELF_C_WRITE);  in kcore__write()
1820 	struct kcore kcore;  in kcore_copy()  local
1821 	struct kcore extract;  in kcore_copy()
1841 	if (kcore__open(&kcore, kcore_filename))  in kcore_copy()
1844 	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))  in kcore_copy()
1847 	if (kcore__init(&extract, extract_filename, kcore.elfclass, false))  in kcore_copy()
1850 	if (kcore__copy_hdr(&kcore, &extract, kci.phnum))  in kcore_copy()
1873 		if (copy_bytes(kcore.fd, p->offset, extract.fd, offs, p->len))  in kcore_copy()
1890 	kcore__close(&kcore);  in kcore_copy()
1906 	struct kcore kcore;  in kcore_extract__create()  local
1907 	struct kcore extract;  in kcore_extract__create()
1912 	if (kcore__open(&kcore, kce->kcore_filename))  in kcore_extract__create()
1916 	if (kcore__init(&extract, kce->extract_filename, kcore.elfclass, true))  in kcore_extract__create()
1919 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_extract__create()
1929 	if (copy_bytes(kcore.fd, kce->offs, extract.fd, offset, kce->len))  in kcore_extract__create()
1939 	kcore__close(&kcore);  in kcore_extract__create()