Lines Matching defs:elf
68 static int elf_getphdrnum(Elf *elf, size_t *dst)
73 ehdr = gelf_getehdr(elf, &gehdr);
84 static int elf_getshdrstrndx(Elf *elf __maybe_unused, size_t *dst __maybe_unused)
181 static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr)
187 while ((sec = elf_nextscn(elf, sec)) != NULL) {
200 Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
207 if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL))
210 while ((sec = elf_nextscn(elf, sec)) != NULL) {
214 str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name);
229 Elf *elf;
238 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
239 if (elf == NULL)
242 if (gelf_getehdr(elf, &ehdr) == NULL)
245 found = !!elf_section_by_name(elf, &ehdr, &shdr, sec, NULL);
248 elf_end(elf);
254 static int elf_read_program_header(Elf *elf, u64 vaddr, GElf_Phdr *phdr)
259 if (elf_getphdrnum(elf, &phdrnum))
263 if (gelf_getphdr(elf, i, phdr) == NULL)
405 static bool get_ifunc_name(Elf *elf, struct dso *dso, GElf_Ehdr *ehdr,
415 if (elf_read_program_header(elf, addr, &phdr))
541 static void get_rela_dyn_info(Elf *elf, GElf_Ehdr *ehdr, struct rela_dyn_info *di, Elf_Scn *scn)
548 scn = elf_section_by_name(elf, ehdr, &rela_dyn_shdr, ".rela.dyn", NULL);
555 scn = elf_getscn(elf, rela_dyn_shdr.sh_link);
560 di->dynstr_data = elf_getdata(elf_getscn(elf, shdr.sh_link), NULL);
635 static int dso__synthesize_plt_got_symbols(struct dso *dso, Elf *elf,
646 scn = elf_section_by_name(elf, ehdr, &shdr, ".plt.got", NULL);
651 get_rela_dyn_info(elf, ehdr, &di, scn);
686 Elf *elf;
691 elf = ss->elf;
694 if (!elf_section_by_name(elf, &ehdr, &shdr_plt, ".plt", NULL))
717 dso__synthesize_plt_got_symbols(dso, elf, &ehdr, sympltname, sizeof(sympltname)))
722 elf_section_by_name(elf, &ehdr, &plt_sec_shdr, ".plt.sec", NULL)) {
735 scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt,
738 scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt,
780 scn_symstrs = elf_getscn(elf, shdr_dynsym.sh_link);
825 else if (!get_ifunc_name(elf, dso, &ehdr, &ri, sympltname, sizeof(sympltname)))
859 static int elf_read_build_id(Elf *elf, void *bf, size_t size)
872 ek = elf_kind(elf);
876 if (gelf_getehdr(elf, &ehdr) == NULL) {
877 pr_err("%s: cannot get elf header.\n", __func__);
888 sec = elf_section_by_name(elf, &ehdr, &shdr,
893 sec = elf_section_by_name(elf, &ehdr, &shdr,
898 sec = elf_section_by_name(elf, &ehdr, &shdr,
973 Elf *elf;
982 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
983 if (elf == NULL) {
988 err = elf_read_build_id(elf, bid->data, size);
992 elf_end(elf);
1126 Elf *elf;
1137 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
1138 if (elf == NULL) {
1143 ek = elf_kind(elf);
1147 if (gelf_getehdr(elf, &ehdr) == NULL) {
1148 pr_err("%s: cannot get elf header.\n", __func__);
1152 sec = elf_section_by_name(elf, &ehdr, &shdr,
1167 elf_end(elf);
1216 elf_end(ss->elf);
1235 Elf *elf;
1252 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
1253 if (elf == NULL) {
1259 if (gelf_getehdr(elf, &ehdr) == NULL) {
1261 pr_debug("%s: cannot get elf header.\n", __func__);
1276 size = elf_read_build_id(elf, build_id, BUILD_ID_SIZE);
1290 ss->is_64_bit = (gelf_getclass(elf) == ELFCLASS64);
1293 ss->symtab = elf_section_by_name(elf, &ehdr, &ss->symshdr, ".symtab",
1299 ss->dynsym = elf_section_by_name(elf, &ehdr, &ss->dynshdr, ".dynsym",
1305 ss->opdsec = elf_section_by_name(elf, &ehdr, &ss->opdshdr, ".opd",
1321 ss->elf = elf;
1329 elf_end(elf);
1346 static u64 max_text_section(Elf *elf, GElf_Ehdr *ehdr)
1358 if (!elf_rawdata(elf_getscn(elf, ehdr->e_shstrndx), NULL))
1361 while ((sec = elf_nextscn(elf, sec)) != NULL) {
1371 sec_name = elf_strptr(elf, ehdr->e_shstrndx, shdr.sh_name);
1558 Elf *elf;
1566 elf = syms_ss->elf;
1576 if (elf_section_by_name(runtime_ss->elf, &runtime_ss->ehdr, &tshdr,
1589 sec = elf_getscn(elf, shdr.sh_link);
1597 sec_strndx = elf_getscn(runtime_ss->elf, runtime_ss->ehdr.e_shstrndx);
1605 sec_strndx = elf_getscn(elf, ehdr.e_shstrndx);
1651 max_text_sh_offset = max_text_section(runtime_ss->elf, &runtime_ss->ehdr);
1678 sym.st_shndx = elf_addr_to_index(runtime_ss->elf,
1695 sec = elf_getscn(syms_ss->elf, sym.st_shndx);
1721 sec = elf_getscn(runtime_ss->elf, sym.st_shndx);
1754 if (elf_read_program_header(runtime_ss->elf,
1863 static int elf_read_maps(Elf *elf, bool exe, mapfn_t mapfn, void *data)
1870 if (elf_getphdrnum(elf, &phdrnum))
1874 if (gelf_getphdr(elf, i, &phdr) == NULL)
1899 Elf *elf;
1901 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
1902 if (elf == NULL)
1906 *is_64_bit = (gelf_getclass(elf) == ELFCLASS64);
1908 err = elf_read_maps(elf, exe, mapfn, data);
1910 elf_end(elf);
1919 Elf *elf;
1921 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
1922 if (elf == NULL)
1925 ek = elf_kind(elf);
1929 if (gelf_getclass(elf) == ELFCLASS64) {
1934 if (gelf_getehdr(elf, &ehdr) == NULL)
1942 elf_end(elf);
1991 Elf *elf;
2003 kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);
2004 if (!kcore->elf)
2007 kcore->elfclass = gelf_getclass(kcore->elf);
2011 ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);
2018 elf_end(kcore->elf);
2036 kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);
2037 if (!kcore->elf)
2040 if (!gelf_newehdr(kcore->elf, elfclass))
2048 elf_end(kcore->elf);
2057 elf_end(kcore->elf);
2088 if (!gelf_update_ehdr(to->elf, ehdr))
2091 if (!gelf_newphdr(to->elf, count))
2111 if (!gelf_update_phdr(kcore->elf, idx, &phdr))
2119 return elf_update(kcore->elf, ELF_C_WRITE);
2331 static int kcore_copy__read_maps(struct kcore_copy_info *kci, Elf *elf)
2333 if (elf_read_maps(elf, true, kcore_copy__read_map, kci) < 0)
2398 Elf *elf)
2436 if (kcore_copy__read_maps(kci, elf))
2586 if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))
2595 offset = gelf_fsize(extract.elf, ELF_T_EHDR, 1, EV_CURRENT) +
2596 gelf_fsize(extract.elf, ELF_T_PHDR, kci.phnum, EV_CURRENT);
2719 * @elf: elf of the opened file
2725 * Responsible for parsing the @data in section .note.stapsdt in @elf and
2728 static int populate_sdt_note(Elf **elf, const char *data, size_t len,
2744 .d_size = gelf_fsize((*elf), ELF_T_ADDR, NR_ADDR, EV_CURRENT),
2765 if (gelf_xlatetom(*elf, &dst, &src,
2766 elf_getident(*elf, NULL)[EI_DATA]) == NULL) {
2808 if (gelf_getclass(*elf) == ELFCLASS32) {
2816 if (!gelf_getehdr(*elf, &ehdr)) {
2817 pr_debug("%s : cannot get elf header.\n", __func__);
2829 if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_BASE_SCN, NULL))
2833 if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_PROBES_SCN, NULL))
2853 * @elf : elf to look into
2856 * Scans the sections in 'elf' for the section
2860 static int construct_sdt_notes_list(Elf *elf, struct list_head *sdt_notes)
2871 if (gelf_getehdr(elf, &ehdr) == NULL) {
2875 if (elf_getshdrstrndx(elf, &shstrndx) != 0) {
2881 scn = elf_section_by_name(elf, &ehdr, &shdr, SDT_NOTE_SCN, NULL);
2904 ret = populate_sdt_note(&elf, ((data->d_buf) + desc_off),
2927 Elf *elf;
2934 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
2935 if (!elf) {
2939 ret = construct_sdt_notes_list(elf, head);
2940 elf_end(elf);