78 static int elf_getphdrnum(Elf *elf, size_t *dst)  in elf_getphdrnum()  argument
83 	ehdr = gelf_getehdr(elf, &gehdr);  in elf_getphdrnum()
94 static int elf_getshdrstrndx(Elf *elf __maybe_unused, size_t *dst __maybe_unused)  in elf_getshdrstrndx()
191 static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr)  in elf_addr_to_index()  argument
197 	while ((sec = elf_nextscn(elf, sec)) != NULL) {  in elf_addr_to_index()
210 Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,  in elf_section_by_name()  argument
217 	if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL))  in elf_section_by_name()
220 	while ((sec = elf_nextscn(elf, sec)) != NULL) {  in elf_section_by_name()
224 		str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name);  in elf_section_by_name()
236 static int elf_read_program_header(Elf *elf, u64 vaddr, GElf_Phdr *phdr)  in elf_read_program_header()  argument
241 	if (elf_getphdrnum(elf, &phdrnum))  in elf_read_program_header()
245 		if (gelf_getphdr(elf, i, phdr) == NULL)  in elf_read_program_header()
328 	Elf *elf;  in dso__synthesize_plt_symbols()  local
334 	elf = ss->elf;  in dso__synthesize_plt_symbols()
344 	scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt,  in dso__synthesize_plt_symbols()
347 		scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt,  in dso__synthesize_plt_symbols()
358 	if (elf_section_by_name(elf, &ehdr, &shdr_plt, ".plt", NULL) == NULL)  in dso__synthesize_plt_symbols()
373 	scn_symstrs = elf_getscn(elf, shdr_dynsym.sh_link);  in dso__synthesize_plt_symbols()
488 static int elf_read_build_id(Elf *elf, void *bf, size_t size)  in elf_read_build_id()  argument
501 	ek = elf_kind(elf);  in elf_read_build_id()
505 	if (gelf_getehdr(elf, &ehdr) == NULL) {  in elf_read_build_id()
517 		sec = elf_section_by_name(elf, &ehdr, &shdr,  in elf_read_build_id()
522 		sec = elf_section_by_name(elf, &ehdr, &shdr,  in elf_read_build_id()
527 		sec = elf_section_by_name(elf, &ehdr, &shdr,  in elf_read_build_id()
602 	Elf *elf;  in read_build_id()  local
611 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in read_build_id()
612 	if (elf == NULL) {  in read_build_id()
617 	err = elf_read_build_id(elf, bid->data, size);  in read_build_id()
621 	elf_end(elf);  in read_build_id()
755 	Elf *elf;  in filename__read_debuglink()  local
766 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in filename__read_debuglink()
767 	if (elf == NULL) {  in filename__read_debuglink()
772 	ek = elf_kind(elf);  in filename__read_debuglink()
776 	if (gelf_getehdr(elf, &ehdr) == NULL) {  in filename__read_debuglink()
781 	sec = elf_section_by_name(elf, &ehdr, &shdr,  in filename__read_debuglink()
796 	elf_end(elf);  in filename__read_debuglink()
845 	elf_end(ss->elf);  in symsrc__destroy()
864 	Elf *elf;  in symsrc__init()  local
881 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in symsrc__init()
882 	if (elf == NULL) {  in symsrc__init()
888 	if (gelf_getehdr(elf, &ehdr) == NULL) {  in symsrc__init()
905 		size = elf_read_build_id(elf, build_id, BUILD_ID_SIZE);  in symsrc__init()
919 	ss->is_64_bit = (gelf_getclass(elf) == ELFCLASS64);  in symsrc__init()
921 	ss->symtab = elf_section_by_name(elf, &ehdr, &ss->symshdr, ".symtab",  in symsrc__init()
927 	ss->dynsym = elf_section_by_name(elf, &ehdr, &ss->dynshdr, ".dynsym",  in symsrc__init()
933 	ss->opdsec = elf_section_by_name(elf, &ehdr, &ss->opdshdr, ".opd",  in symsrc__init()
949 	ss->elf    = elf;  in symsrc__init()
957 	elf_end(elf);  in symsrc__init()
1122 	Elf *elf;  in dso__load_sym_internal()  local
1129 	elf = syms_ss->elf;  in dso__load_sym_internal()
1139 	if (elf_section_by_name(runtime_ss->elf, &runtime_ss->ehdr, &tshdr,  in dso__load_sym_internal()
1150 	sec = elf_getscn(elf, shdr.sh_link);  in dso__load_sym_internal()
1158 	sec_strndx = elf_getscn(runtime_ss->elf, runtime_ss->ehdr.e_shstrndx);  in dso__load_sym_internal()
1166 	sec_strndx = elf_getscn(elf, ehdr.e_shstrndx);  in dso__load_sym_internal()
1235 			sym.st_shndx = elf_addr_to_index(runtime_ss->elf,  in dso__load_sym_internal()
1252 		sec = elf_getscn(syms_ss->elf, sym.st_shndx);  in dso__load_sym_internal()
1278 			sec = elf_getscn(runtime_ss->elf, sym.st_shndx);  in dso__load_sym_internal()
1306 			if (elf_read_program_header(runtime_ss->elf,  in dso__load_sym_internal()
1413 static int elf_read_maps(Elf *elf, bool exe, mapfn_t mapfn, void *data)  in elf_read_maps()  argument
1420 	if (elf_getphdrnum(elf, &phdrnum))  in elf_read_maps()
1424 		if (gelf_getphdr(elf, i, &phdr) == NULL)  in elf_read_maps()
1449 	Elf *elf;  in file__read_maps()  local
1451 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in file__read_maps()
1452 	if (elf == NULL)  in file__read_maps()
1456 		*is_64_bit = (gelf_getclass(elf) == ELFCLASS64);  in file__read_maps()
1458 	err = elf_read_maps(elf, exe, mapfn, data);  in file__read_maps()
1460 	elf_end(elf);  in file__read_maps()
1469 	Elf *elf;  in dso__type_fd()  local
1471 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in dso__type_fd()
1472 	if (elf == NULL)  in dso__type_fd()
1475 	ek = elf_kind(elf);  in dso__type_fd()
1479 	if (gelf_getclass(elf) == ELFCLASS64) {  in dso__type_fd()
1484 	if (gelf_getehdr(elf, &ehdr) == NULL)  in dso__type_fd()
1492 	elf_end(elf);  in dso__type_fd()
1541 	Elf *elf;  member
1553 	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);  in kcore__open()
1554 	if (!kcore->elf)  in kcore__open()
1557 	kcore->elfclass = gelf_getclass(kcore->elf);  in kcore__open()
1561 	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);  in kcore__open()
1568 	elf_end(kcore->elf);  in kcore__open()
1586 	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);  in kcore__init()
1587 	if (!kcore->elf)  in kcore__init()
1590 	if (!gelf_newehdr(kcore->elf, elfclass))  in kcore__init()
1598 	elf_end(kcore->elf);  in kcore__init()
1607 	elf_end(kcore->elf);  in kcore__close()
1638 	if (!gelf_update_ehdr(to->elf, ehdr))  in kcore__copy_hdr()
1641 	if (!gelf_newphdr(to->elf, count))  in kcore__copy_hdr()
1661 	if (!gelf_update_phdr(kcore->elf, idx, &phdr))  in kcore__add_phdr()
1669 	return elf_update(kcore->elf, ELF_C_WRITE);  in kcore__write()
1881 static int kcore_copy__read_maps(struct kcore_copy_info *kci, Elf *elf)  in kcore_copy__read_maps()  argument
1883 	if (elf_read_maps(elf, true, kcore_copy__read_map, kci) < 0)  in kcore_copy__read_maps()
1948 				 Elf *elf)  in kcore_copy__calc_maps()  argument
1986 	if (kcore_copy__read_maps(kci, elf))  in kcore_copy__calc_maps()
2136 	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))  in kcore_copy()
2145 	offset = gelf_fsize(extract.elf, ELF_T_EHDR, 1, EV_CURRENT) +  in kcore_copy()
2146 		 gelf_fsize(extract.elf, ELF_T_PHDR, kci.phnum, EV_CURRENT);  in kcore_copy()
2278 static int populate_sdt_note(Elf **elf, const char *data, size_t len,  in populate_sdt_note()  argument
2294 		.d_size = gelf_fsize((*elf), ELF_T_ADDR, NR_ADDR, EV_CURRENT),  in populate_sdt_note()
2315 	if (gelf_xlatetom(*elf, &dst, &src,  in populate_sdt_note()
2316 			  elf_getident(*elf, NULL)[EI_DATA]) == NULL) {  in populate_sdt_note()
2358 	if (gelf_getclass(*elf) == ELFCLASS32) {  in populate_sdt_note()
2366 	if (!gelf_getehdr(*elf, &ehdr)) {  in populate_sdt_note()
2379 	if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_BASE_SCN, NULL))  in populate_sdt_note()
2383 	if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_PROBES_SCN, NULL))  in populate_sdt_note()
2410 static int construct_sdt_notes_list(Elf *elf, struct list_head *sdt_notes)  in construct_sdt_notes_list()  argument
2421 	if (gelf_getehdr(elf, &ehdr) == NULL) {  in construct_sdt_notes_list()
2425 	if (elf_getshdrstrndx(elf, &shstrndx) != 0) {  in construct_sdt_notes_list()
2431 	scn = elf_section_by_name(elf, &ehdr, &shdr, SDT_NOTE_SCN, NULL);  in construct_sdt_notes_list()
2454 			ret = populate_sdt_note(&elf, ((data->d_buf) + desc_off),  in construct_sdt_notes_list()
2477 	Elf *elf;  in get_sdt_note_list()  local
2484 	elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);  in get_sdt_note_list()
2485 	if (!elf) {  in get_sdt_note_list()
2489 	ret = construct_sdt_notes_list(elf, head);  in get_sdt_note_list()
2490 	elf_end(elf);  in get_sdt_note_list()