1438 struct kcore {  struct
1445 static int kcore__open(struct kcore *kcore, const char *filename)  in kcore__open()  argument
1449 	kcore->fd = open(filename, O_RDONLY);  in kcore__open()
1450 	if (kcore->fd == -1)  in kcore__open()
1453 	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);  in kcore__open()
1454 	if (!kcore->elf)  in kcore__open()
1457 	kcore->elfclass = gelf_getclass(kcore->elf);  in kcore__open()
1458 	if (kcore->elfclass == ELFCLASSNONE)  in kcore__open()
1461 	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);  in kcore__open()
1468 	elf_end(kcore->elf);  in kcore__open()
1470 	close(kcore->fd);  in kcore__open()
1474 static int kcore__init(struct kcore *kcore, char *filename, int elfclass,  in kcore__init()  argument
1477 	kcore->elfclass = elfclass;  in kcore__init()
1480 		kcore->fd = mkstemp(filename);  in kcore__init()
1482 		kcore->fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400);  in kcore__init()
1483 	if (kcore->fd == -1)  in kcore__init()
1486 	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);  in kcore__init()
1487 	if (!kcore->elf)  in kcore__init()
1490 	if (!gelf_newehdr(kcore->elf, elfclass))  in kcore__init()
1493 	memset(&kcore->ehdr, 0, sizeof(GElf_Ehdr));  in kcore__init()
1498 	elf_end(kcore->elf);  in kcore__init()
1500 	close(kcore->fd);  in kcore__init()
1505 static void kcore__close(struct kcore *kcore)  in kcore__close()  argument
1507 	elf_end(kcore->elf);  in kcore__close()
1508 	close(kcore->fd);  in kcore__close()
1511 static int kcore__copy_hdr(struct kcore *from, struct kcore *to, size_t count)  in kcore__copy_hdr()
1547 static int kcore__add_phdr(struct kcore *kcore, int idx, off_t offset,  in kcore__add_phdr()  argument
1561 	if (!gelf_update_phdr(kcore->elf, idx, &phdr))  in kcore__add_phdr()
1567 static off_t kcore__write(struct kcore *kcore)  in kcore__write()  argument
1569 	return elf_update(kcore->elf, ELF_C_WRITE);  in kcore__write()
2012 	struct kcore kcore;  in kcore_copy()  local
2013 	struct kcore extract;  in kcore_copy()
2033 	if (kcore__open(&kcore, kcore_filename))  in kcore_copy()
2036 	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))  in kcore_copy()
2039 	if (kcore__init(&extract, extract_filename, kcore.elfclass, false))  in kcore_copy()
2042 	if (kcore__copy_hdr(&kcore, &extract, kci.phnum))  in kcore_copy()
2065 		if (copy_bytes(kcore.fd, p->offset, extract.fd, offs, p->len))  in kcore_copy()
2079 	kcore__close(&kcore);  in kcore_copy()
2095 	struct kcore kcore;  in kcore_extract__create()  local
2096 	struct kcore extract;  in kcore_extract__create()
2101 	if (kcore__open(&kcore, kce->kcore_filename))  in kcore_extract__create()
2105 	if (kcore__init(&extract, kce->extract_filename, kcore.elfclass, true))  in kcore_extract__create()
2108 	if (kcore__copy_hdr(&kcore, &extract, count))  in kcore_extract__create()
2118 	if (copy_bytes(kcore.fd, kce->offs, extract.fd, offset, kce->len))  in kcore_extract__create()
2128 	kcore__close(&kcore);  in kcore_extract__create()