Lines Matching full:elf
67 static int elf_getphdrnum(Elf *elf, size_t *dst) in elf_getphdrnum() argument
72 ehdr = gelf_getehdr(elf, &gehdr); in elf_getphdrnum()
83 static int elf_getshdrstrndx(Elf *elf __maybe_unused, size_t *dst __maybe_unused) in elf_getshdrstrndx()
180 static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr) in elf_addr_to_index() argument
186 while ((sec = elf_nextscn(elf, sec)) != NULL) { in elf_addr_to_index()
199 Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, in elf_section_by_name() argument
205 /* ELF is corrupted/truncated, avoid calling elf_strptr. */ in elf_section_by_name()
206 if (!elf_rawdata(elf_getscn(elf, ep->e_shstrndx), NULL)) in elf_section_by_name()
209 while ((sec = elf_nextscn(elf, sec)) != NULL) { in elf_section_by_name()
213 str = elf_strptr(elf, ep->e_shstrndx, shp->sh_name); in elf_section_by_name()
228 Elf *elf; in filename__has_section() local
237 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in filename__has_section()
238 if (elf == NULL) in filename__has_section()
241 if (gelf_getehdr(elf, &ehdr) == NULL) in filename__has_section()
244 found = !!elf_section_by_name(elf, &ehdr, &shdr, sec, NULL); in filename__has_section()
247 elf_end(elf); in filename__has_section()
253 static int elf_read_program_header(Elf *elf, u64 vaddr, GElf_Phdr *phdr) in elf_read_program_header() argument
258 if (elf_getphdrnum(elf, &phdrnum)) in elf_read_program_header()
262 if (gelf_getphdr(elf, i, phdr) == NULL) in elf_read_program_header()
402 static bool get_ifunc_name(Elf *elf, struct dso *dso, GElf_Ehdr *ehdr, in get_ifunc_name() argument
412 if (elf_read_program_header(elf, addr, &phdr)) in get_ifunc_name()
538 static void get_rela_dyn_info(Elf *elf, GElf_Ehdr *ehdr, struct rela_dyn_info *di, Elf_Scn *scn) in get_rela_dyn_info() argument
545 scn = elf_section_by_name(elf, ehdr, &rela_dyn_shdr, ".rela.dyn", NULL); in get_rela_dyn_info()
552 scn = elf_getscn(elf, rela_dyn_shdr.sh_link); in get_rela_dyn_info()
557 di->dynstr_data = elf_getdata(elf_getscn(elf, shdr.sh_link), NULL); in get_rela_dyn_info()
632 static int dso__synthesize_plt_got_symbols(struct dso *dso, Elf *elf, in dso__synthesize_plt_got_symbols() argument
643 scn = elf_section_by_name(elf, ehdr, &shdr, ".plt.got", NULL); in dso__synthesize_plt_got_symbols()
648 get_rela_dyn_info(elf, ehdr, &di, scn); in dso__synthesize_plt_got_symbols()
683 Elf *elf; in dso__synthesize_plt_symbols() local
688 elf = ss->elf; in dso__synthesize_plt_symbols()
691 if (!elf_section_by_name(elf, &ehdr, &shdr_plt, ".plt", NULL)) in dso__synthesize_plt_symbols()
714 dso__synthesize_plt_got_symbols(dso, elf, &ehdr, sympltname, sizeof(sympltname))) in dso__synthesize_plt_symbols()
719 elf_section_by_name(elf, &ehdr, &plt_sec_shdr, ".plt.sec", NULL)) { in dso__synthesize_plt_symbols()
732 scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt, in dso__synthesize_plt_symbols()
735 scn_plt_rel = elf_section_by_name(elf, &ehdr, &shdr_rel_plt, in dso__synthesize_plt_symbols()
777 scn_symstrs = elf_getscn(elf, shdr_dynsym.sh_link); in dso__synthesize_plt_symbols()
822 else if (!get_ifunc_name(elf, dso, &ehdr, &ri, sympltname, sizeof(sympltname))) in dso__synthesize_plt_symbols()
856 static int elf_read_build_id(Elf *elf, void *bf, size_t size) in elf_read_build_id() argument
869 ek = elf_kind(elf); in elf_read_build_id()
873 if (gelf_getehdr(elf, &ehdr) == NULL) { in elf_read_build_id()
874 pr_err("%s: cannot get elf header.\n", __func__); in elf_read_build_id()
885 sec = elf_section_by_name(elf, &ehdr, &shdr, in elf_read_build_id()
890 sec = elf_section_by_name(elf, &ehdr, &shdr, in elf_read_build_id()
895 sec = elf_section_by_name(elf, &ehdr, &shdr, in elf_read_build_id()
970 Elf *elf; in read_build_id() local
979 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in read_build_id()
980 if (elf == NULL) { in read_build_id()
981 pr_debug2("%s: cannot read %s ELF file.\n", __func__, filename); in read_build_id()
985 err = elf_read_build_id(elf, bid->data, size); in read_build_id()
989 elf_end(elf); in read_build_id()
1123 Elf *elf; in filename__read_debuglink() local
1134 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in filename__read_debuglink()
1135 if (elf == NULL) { in filename__read_debuglink()
1136 pr_debug2("%s: cannot read %s ELF file.\n", __func__, filename); in filename__read_debuglink()
1140 ek = elf_kind(elf); in filename__read_debuglink()
1144 if (gelf_getehdr(elf, &ehdr) == NULL) { in filename__read_debuglink()
1145 pr_err("%s: cannot get elf header.\n", __func__); in filename__read_debuglink()
1149 sec = elf_section_by_name(elf, &ehdr, &shdr, in filename__read_debuglink()
1164 elf_end(elf); in filename__read_debuglink()
1213 elf_end(ss->elf); in symsrc__destroy()
1220 * Usually vmlinux is an ELF file with type ET_EXEC for most in elf__needs_adjust_symbols()
1232 Elf *elf; in symsrc__init() local
1249 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in symsrc__init()
1250 if (elf == NULL) { in symsrc__init()
1251 pr_debug("%s: cannot read %s ELF file.\n", __func__, name); in symsrc__init()
1256 if (gelf_getehdr(elf, &ehdr) == NULL) { in symsrc__init()
1258 pr_debug("%s: cannot get elf header.\n", __func__); in symsrc__init()
1273 size = elf_read_build_id(elf, build_id, BUILD_ID_SIZE); in symsrc__init()
1287 ss->is_64_bit = (gelf_getclass(elf) == ELFCLASS64); in symsrc__init()
1290 ss->symtab = elf_section_by_name(elf, &ehdr, &ss->symshdr, ".symtab", in symsrc__init()
1296 ss->dynsym = elf_section_by_name(elf, &ehdr, &ss->dynshdr, ".dynsym", in symsrc__init()
1302 ss->opdsec = elf_section_by_name(elf, &ehdr, &ss->opdshdr, ".opd", in symsrc__init()
1318 ss->elf = elf; in symsrc__init()
1326 elf_end(elf); in symsrc__init()
1499 Elf *elf; in dso__load_sym_internal() local
1506 elf = syms_ss->elf; in dso__load_sym_internal()
1516 if (elf_section_by_name(runtime_ss->elf, &runtime_ss->ehdr, &tshdr, in dso__load_sym_internal()
1527 sec = elf_getscn(elf, shdr.sh_link); in dso__load_sym_internal()
1535 sec_strndx = elf_getscn(runtime_ss->elf, runtime_ss->ehdr.e_shstrndx); in dso__load_sym_internal()
1543 sec_strndx = elf_getscn(elf, ehdr.e_shstrndx); in dso__load_sym_internal()
1598 /* Reject ARM ELF "mapping symbols": these aren't unique and in dso__load_sym_internal()
1611 sym.st_shndx = elf_addr_to_index(runtime_ss->elf, in dso__load_sym_internal()
1628 sec = elf_getscn(syms_ss->elf, sym.st_shndx); in dso__load_sym_internal()
1654 sec = elf_getscn(runtime_ss->elf, sym.st_shndx); in dso__load_sym_internal()
1682 if (elf_read_program_header(runtime_ss->elf, in dso__load_sym_internal()
1695 * is not necessary for normal C ELF file, we in dso__load_sym_internal()
1789 static int elf_read_maps(Elf *elf, bool exe, mapfn_t mapfn, void *data) in elf_read_maps() argument
1796 if (elf_getphdrnum(elf, &phdrnum)) in elf_read_maps()
1800 if (gelf_getphdr(elf, i, &phdr) == NULL) in elf_read_maps()
1825 Elf *elf; in file__read_maps() local
1827 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in file__read_maps()
1828 if (elf == NULL) in file__read_maps()
1832 *is_64_bit = (gelf_getclass(elf) == ELFCLASS64); in file__read_maps()
1834 err = elf_read_maps(elf, exe, mapfn, data); in file__read_maps()
1836 elf_end(elf); in file__read_maps()
1845 Elf *elf; in dso__type_fd() local
1847 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in dso__type_fd()
1848 if (elf == NULL) in dso__type_fd()
1851 ek = elf_kind(elf); in dso__type_fd()
1855 if (gelf_getclass(elf) == ELFCLASS64) { in dso__type_fd()
1860 if (gelf_getehdr(elf, &ehdr) == NULL) in dso__type_fd()
1868 elf_end(elf); in dso__type_fd()
1917 Elf *elf; member
1929 kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL); in kcore__open()
1930 if (!kcore->elf) in kcore__open()
1933 kcore->elfclass = gelf_getclass(kcore->elf); in kcore__open()
1937 ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr); in kcore__open()
1944 elf_end(kcore->elf); in kcore__open()
1962 kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL); in kcore__init()
1963 if (!kcore->elf) in kcore__init()
1966 if (!gelf_newehdr(kcore->elf, elfclass)) in kcore__init()
1974 elf_end(kcore->elf); in kcore__init()
1983 elf_end(kcore->elf); in kcore__close()
2014 if (!gelf_update_ehdr(to->elf, ehdr)) in kcore__copy_hdr()
2017 if (!gelf_newphdr(to->elf, count)) in kcore__copy_hdr()
2037 if (!gelf_update_phdr(kcore->elf, idx, &phdr)) in kcore__add_phdr()
2045 return elf_update(kcore->elf, ELF_C_WRITE); in kcore__write()
2257 static int kcore_copy__read_maps(struct kcore_copy_info *kci, Elf *elf) in kcore_copy__read_maps() argument
2259 if (elf_read_maps(elf, true, kcore_copy__read_map, kci) < 0) in kcore_copy__read_maps()
2324 Elf *elf) in kcore_copy__calc_maps() argument
2362 if (kcore_copy__read_maps(kci, elf)) in kcore_copy__calc_maps()
2512 if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf)) in kcore_copy()
2521 offset = gelf_fsize(extract.elf, ELF_T_EHDR, 1, EV_CURRENT) + in kcore_copy()
2522 gelf_fsize(extract.elf, ELF_T_PHDR, kci.phnum, EV_CURRENT); in kcore_copy()
2645 * @elf: elf of the opened file
2651 * Responsible for parsing the @data in section .note.stapsdt in @elf and
2654 static int populate_sdt_note(Elf **elf, const char *data, size_t len, in populate_sdt_note() argument
2670 .d_size = gelf_fsize((*elf), ELF_T_ADDR, NR_ADDR, EV_CURRENT), in populate_sdt_note()
2691 if (gelf_xlatetom(*elf, &dst, &src, in populate_sdt_note()
2692 elf_getident(*elf, NULL)[EI_DATA]) == NULL) { in populate_sdt_note()
2734 if (gelf_getclass(*elf) == ELFCLASS32) { in populate_sdt_note()
2742 if (!gelf_getehdr(*elf, &ehdr)) { in populate_sdt_note()
2743 pr_debug("%s : cannot get elf header.\n", __func__); in populate_sdt_note()
2755 if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_BASE_SCN, NULL)) in populate_sdt_note()
2759 if (elf_section_by_name(*elf, &ehdr, &shdr, SDT_PROBES_SCN, NULL)) in populate_sdt_note()
2779 * @elf : elf to look into
2782 * Scans the sections in 'elf' for the section
2786 static int construct_sdt_notes_list(Elf *elf, struct list_head *sdt_notes) in construct_sdt_notes_list() argument
2797 if (gelf_getehdr(elf, &ehdr) == NULL) { in construct_sdt_notes_list()
2801 if (elf_getshdrstrndx(elf, &shstrndx) != 0) { in construct_sdt_notes_list()
2807 scn = elf_section_by_name(elf, &ehdr, &shdr, SDT_NOTE_SCN, NULL); in construct_sdt_notes_list()
2830 ret = populate_sdt_note(&elf, ((data->d_buf) + desc_off), in construct_sdt_notes_list()
2849 * the ELF and then calls construct_sdt_notes_list.
2853 Elf *elf; in get_sdt_note_list() local
2860 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); in get_sdt_note_list()
2861 if (!elf) { in get_sdt_note_list()
2865 ret = construct_sdt_notes_list(elf, head); in get_sdt_note_list()
2866 elf_end(elf); in get_sdt_note_list()