diff options
author | Alan Modra <amodra@gmail.com> | 2001-12-17 00:52:35 +0000 |
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committer | Alan Modra <amodra@gmail.com> | 2001-12-17 00:52:35 +0000 |
commit | 9ad5cbcfb23cb74d34bd04f88f4e47c0f5de5155 (patch) | |
tree | ad50ccd4f5e9865bf609bf15586311f30452ee23 /bfd/elf32-sh.c | |
parent | 76f63e91263a394065560500287a32d72c088967 (diff) | |
download | ppe42-binutils-9ad5cbcfb23cb74d34bd04f88f4e47c0f5de5155.tar.gz ppe42-binutils-9ad5cbcfb23cb74d34bd04f88f4e47c0f5de5155.zip |
Support for more than 64k ELF sections.
include/elf/ChangeLog
* external.h (Elf_External_Sym_Shndx): Declare.
* internal.h (struct elf_internal_sym <st_shndx>): Make it an
unsigned int.
* common.h (SHN_BAD): Define.
bfd/ChangeLog
* configure.in: Bump bfd version.
* configure: Regenerate.
* elf-bfd.h (elf_size_info <swap_symbol_out>): Add shndx param.
(bfd_elf32_swap_symbol_in): Likewise.
(bfd_elf32_swap_symbol_out): Likewise.
(bfd_elf64_swap_symbol_in): Likewise.
(bfd_elf64_swap_symbol_out): Likewise.
(elf_reloc_cookie): Add locsym_shndx field. Make locsyms a PTR.
(elf_obj_tdata): Add num_elf_sections, symtab_shndx_hdr and
symtab_shndx_section.
(elf_numsections): Define.
(elf_symtab_shndx): Define.
* elf.c (setup_group): Use elf_numsections rather than header e_shnum.
(bfd_elf_find_section): Likewise.
(bfd_section_from_elf_index): Likewise.
(bfd_section_from_shdr): Likewise. Handle SHT_SYMTAB_SHNDX.
(bfd_section_from_r_symndx): Read symbol shndx extension, and
translate st_shndx for > SHN_HIRESERVE.
(assign_section_numbers): Skip reserved sections. Assign
symtab_shndx_section and elf_numsections. Exclude reserved
sections from e_shnum. Set up symtab_shndx_hdr.
(_bfd_elf_compute_section_file_positions): Handle symtab_shndx_hdr.
(map_sections_to_segments): Don't map eh_frame_hdr unless required.
(assign_file_positions_except_relocs): Use elf_numsections rather
than header e_shnum. Skip reserved sections and symtab_shndx_section.
(prep_headers): Set name for symtab_shndx_hdr.
(_bfd_elf_assign_file_positions_for_relocs): Use elf_numsections.
(_bfd_elf_write_object_contents): Likewise. Skip reserved sections.
(_bfd_elf_section_from_bfd_section): Check bfd_{abs,com,und}_section
first. Use elf_section_data if available. Use elf_numsections.
Start scan at index 1.
(copy_private_bfd_data ): Comment fixes.
(MAP_ONESYMTAB): Define above SHN_HIOS.
(MAP_DYNSYMTAB): Likewise.
(MAP_STRTAB): Likewise.
(MAP_SHSTRTAB): Likewise.
(MAP_SYM_SHNDX): New define.
(_bfd_elf_copy_private_symbol_data): Handle symtab_shndx_section.
(swap_out_syms): Swap out SHT_SYMTAB_SHNDX section too.
* elfcode.h (elf_swap_symbol_in): Add shndx param, and handle shndx
extension.
(elf_swap_symbol_out): Likewise.
(elf_object_p): Set elf_numsections, and use instead of e_shnum.
Initialialise reserved elf_elfsections to point at shdr[0]. Remove
redundant bfd_release calls.
(elf_slurp_symbol_table): Read symbol shndx extension, and use with
elf_swap_symbol_in. Translate st_shndx for > SHN_HIRESERVE too.
* elflink.h (elf_link_is_defined_archive_symbol): Read symbol shndx
extension, and use with elf_swap_symbol_in.
(elf_link_record_local_dynamic_symbol): Likewise.
(elf_link_add_object_symbols): Likewise. Also translate st_shndx
for elf sections > SHN_HIRESERVE.
(NAME(bfd_elf,size_dynamic_sections)): Adjust elf_swap_symbol_out
call.
(struct elf_final_link_info): Add locsym_shndx and symshndxbuf.
(elf_bfd_final_link): Allocate the above, and tidy code allocating
other buffers. Use elf_numsections instead of e_shnum. Adjust
elf_swap_symbol_out calls.
(elf_link_output_sym): Swap out symbol shndx extension too.
(elf_link_flush_output_syms): And flush them to disk.
(elf_link_output_extsym): Use SHN_BAD. Adjust elf_swap_symbol_out
calls.
(elf_gc_mark): Read symbol shndx extension, and use with
elf_swap_symbol_in.
(elf_link_input_bfd): Likewise, Translate st_shndx for elf sections
> SHN_HIRESERVE too. Use SHN_BAD.
(elf_reloc_symbol_deleted_p): Use symbol shndx extensions with
elf_swap_symbol_in. Translate st_shndx > SHN_HIRESERVE too.
(elf_bfd_discard_info): Read symbol shndx extension. Don't attempt
to continue after a bfd error.
* elf-m10200.c (mn10200_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Translate SHN_UNDEF,
SHN_ABS, SHN_COMMON and elf sections > SHN_HIRESERVE to bfd
sections too. Remove dead code.
(mn10200_elf_relax_delete_bytes): Use symbol shndx extension
when swapping in symbols. Tidy code adjusting global syms.
Don't swap in global syms.
(mn10200_elf_symbol_address_p): Likewise. Remove extsyms param.
(mn10200_elf_get_relocated_section_contents): Read symbol shndx
extension, and use with swap_symbol_in. Rename "size" -> "amt"
to maximize code in common with other files. Translate st_shndx
for > SHN_HIRESERVE too. Remove dead code.
* elf-m10300.c (mn10300_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Remove dead code.
(mn10300_elf_relax_delete_bytes): As for elf-m10200.c.
(mn10300_elf_symbol_address_p): Likewise.
(mn10300_elf_get_relocated_section_contents): Likewise.
* elf32-h8300.c (elf32_h8_relax_section): As for elf-m10300.c.
(elf32_h8_relax_delete_bytes): Likewise.
(elf32_h8_symbol_address_p): Likewise.
(elf32_h8_get_relocated_section_contents): Likewise.
* elf32-hppa.c (elf32_hppa_size_stubs): Read symbol shndx
extension, and use with swap_symbol_in.
* elf64-hppa.c (elf64_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Adjust call to
bfd_elf32_swap_symbol_out.
* elf32-m32r.c (m32r_elf_get_relocated_section_contents): Translate
elf sections > SHN_HIRESERVE too.
* elf32-m68k.c (bfd_m68k_elf32_create_embedded_relocs): Only read
local syms. Read symbol shndx extension, and use with swap_symbol_in.
* elf32-mips.c (_bfd_mips_elf_final_write_processing): Use
elf_numsections rather than header e_shnum.
* elf32-sh.c (sh_elf_relax_section): As for elf-m10300.c.
(sh_elf_relax_delete_bytes): Likewise.
(sh_elf_get_relocated_section_contents): Likewise. Only read local
symbols.
* elf32-v850.c (v850_elf_symbol_processing): Use an unsigned int to
hold section index. Use elf_numsections rather than e_shnum.
Rename "index" -> "indx" to avoid shadowing warning.
(v850_elf_add_symbol_hook): Likewise.
* elf64-alpha.c (elf64_alpha_relax_section): Only read local syms.
Read symbol shndx extension, and use with swap_symbol_in.
* elf32-xstormy16.c (xstormy16_elf_relax_section): Likewise.
Translate SHN_COMMON and elf sections > SHN_HIRESERVE too.
* elfxx-ia64.c (elfNN_ia64_relax_section): Likewise.
(elfNN_ia64_aix_add_symbol_hook): Use elf_numsections.
* elf-m10300.c (mn10300_elf_gc_mark_hook): Remove unnecessary checks
before calling bfd_section_from_elf_index on local syms.
* elf32-arm.h (elf32_arm_gc_mark_hook): Likewise.
* elf32-avr.c (elf32_avr_gc_mark_hook): Likewise.
* elf32-cris.c (cris_elf_gc_mark_hook): Likewise.
* elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise.
* elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise.
* elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise.
* elf32-i386.c (elf_i386_gc_mark_hook): Likewise.
* elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise.
* elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise.
* elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise.
* elf32-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise.
* elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise.
* elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise.
* elf32-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf32-sh.c (sh_elf_gc_mark_hook): Likewise.
* elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise.
* elf32-v850.c (v850_elf_gc_mark_hook): Likewise.
* elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise.
* elf64-mips.c (mips_elf64_gc_mark_hook): Likewise.
* elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise.
* elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise.
* elf64-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise.
binutils/ChangeLog
* readelf.c (symtab_shndx_hdr): New global.
(SECTION_HEADER_INDEX): Define.
(SECTION_HEADER_NUM): Define.
(SECTION_HEADER): Define.
(GET_ELF_SYMBOLS): Pass two params rather than three.
(get_32bit_elf_symbols): Take file and section args. Read and
use SHT_SYMTAB_SHNDX.
(get_64bit_elf_symbols): Likewise.
(dump_relocations): Use SECTION_HEADER to index "section_headers".
(process_section_headers): Likewise. Use SECTION_HEADER_NUM too.
Remember symtab_shdx_hdr.
(process_program_headers): Scan from index 1 for segment map.
(slurp_ia64_unwind_table): Use SECTION_HEADER to index
"section_headers".
(process_relocs): Likewise. Also adjust call to GET_ELF_SYMBOLS.
(process_unwind): Likewise.
(process_version_sections): Likewise.
(process_symbol_table): Likewise.
(display_debug_info): Likewise.
(process_dynamic_segment): Fake up a symtab section for changed
GET_ELF_SYMBOLS.
(get_symbol_index_type): Check SHN_LOOS before SHN_LORESERVE.
(process_program_headers): Kill signed/unsigned warning.
(load_debug_str): Likewise.
(display_debug_info): Likewise.
Diffstat (limited to 'bfd/elf32-sh.c')
-rw-r--r-- | bfd/elf32-sh.c | 216 |
1 files changed, 131 insertions, 85 deletions
diff --git a/bfd/elf32-sh.c b/bfd/elf32-sh.c index 9fe9873e3f..1a711916bb 100644 --- a/bfd/elf32-sh.c +++ b/bfd/elf32-sh.c @@ -1023,6 +1023,7 @@ sh_elf_relax_section (abfd, sec, link_info, again) boolean *again; { Elf_Internal_Shdr *symtab_hdr; + Elf_Internal_Shdr *shndx_hdr; Elf_Internal_Rela *internal_relocs; Elf_Internal_Rela *free_relocs = NULL; boolean have_code; @@ -1031,6 +1032,7 @@ sh_elf_relax_section (abfd, sec, link_info, again) bfd_byte *free_contents = NULL; Elf32_External_Sym *extsyms = NULL; Elf32_External_Sym *free_extsyms = NULL; + Elf_External_Sym_Shndx *shndx_buf = NULL; *again = false; @@ -1045,6 +1047,7 @@ sh_elf_relax_section (abfd, sec, link_info, again) sec->_cooked_size = sec->_raw_size; symtab_hdr = &elf_tdata (abfd)->symtab_hdr; + shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; internal_relocs = (_bfd_elf32_link_read_relocs (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL, @@ -1151,26 +1154,47 @@ sh_elf_relax_section (abfd, sec, link_info, again) extsyms = (Elf32_External_Sym *) symtab_hdr->contents; else { - extsyms = (Elf32_External_Sym *) bfd_malloc (symtab_hdr->sh_size); + bfd_size_type amt; + + amt = symtab_hdr->sh_info; + amt *= sizeof (Elf32_External_Sym); + extsyms = (Elf32_External_Sym *) bfd_malloc (amt); if (extsyms == NULL) goto error_return; free_extsyms = extsyms; if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || (bfd_bread (extsyms, symtab_hdr->sh_size, abfd) - != symtab_hdr->sh_size)) + || bfd_bread ((PTR) extsyms, amt, abfd) != amt) goto error_return; + symtab_hdr->contents = (bfd_byte *) extsyms; + } + + if (shndx_hdr->sh_size != 0) + { + bfd_size_type amt; + + amt = symtab_hdr->sh_info; + amt *= sizeof (Elf_External_Sym_Shndx); + shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); + if (shndx_buf == NULL) + goto error_return; + if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0 + || bfd_bread ((PTR) shndx_buf, amt, abfd) != amt) + goto error_return; + shndx_hdr->contents = (bfd_byte *) shndx_buf; } } /* Get the value of the symbol referred to by the reloc. */ if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) { + /* A local symbol. */ + Elf32_External_Sym *esym; + Elf_External_Sym_Shndx *shndx; Elf_Internal_Sym isym; - /* A local symbol. */ - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irelfn->r_info), - &isym); + esym = extsyms + ELF32_R_SYM (irelfn->r_info); + shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelfn->r_info) : 0); + bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); if (isym.st_shndx != _bfd_elf_section_from_bfd_section (abfd, sec)) { @@ -1236,7 +1260,6 @@ sh_elf_relax_section (abfd, sec, link_info, again) elf_section_data (sec)->this_hdr.contents = contents; free_contents = NULL; - symtab_hdr->contents = (bfd_byte *) extsyms; free_extsyms = NULL; /* Replace the jsr with a bsr. */ @@ -1362,16 +1385,12 @@ sh_elf_relax_section (abfd, sec, link_info, again) elf_section_data (sec)->this_hdr.contents = contents; free_contents = NULL; - symtab_hdr->contents = (bfd_byte *) extsyms; free_extsyms = NULL; } } if (free_relocs != NULL) - { - free (free_relocs); - free_relocs = NULL; - } + free (free_relocs); if (free_contents != NULL) { @@ -1382,19 +1401,21 @@ sh_elf_relax_section (abfd, sec, link_info, again) /* Cache the section contents for elf_link_input_bfd. */ elf_section_data (sec)->this_hdr.contents = contents; } - free_contents = NULL; + } + + if (shndx_buf != NULL) + { + shndx_hdr->contents = NULL; + free (shndx_buf); } if (free_extsyms != NULL) { if (! link_info->keep_memory) - free (free_extsyms); - else { - /* Cache the symbols for elf_link_input_bfd. */ - symtab_hdr->contents = (unsigned char *) extsyms; + symtab_hdr->contents = NULL; + free (free_extsyms); } - free_extsyms = NULL; } return true; @@ -1404,8 +1425,17 @@ sh_elf_relax_section (abfd, sec, link_info, again) free (free_relocs); if (free_contents != NULL) free (free_contents); + if (shndx_buf != NULL) + { + shndx_hdr->contents = NULL; + free (shndx_buf); + } if (free_extsyms != NULL) - free (free_extsyms); + { + symtab_hdr->contents = NULL; + free (free_extsyms); + } + return false; } @@ -1421,20 +1451,27 @@ sh_elf_relax_delete_bytes (abfd, sec, addr, count) int count; { Elf_Internal_Shdr *symtab_hdr; + Elf_Internal_Shdr *shndx_hdr; Elf32_External_Sym *extsyms; - int shndx, index; + unsigned int sec_shndx; bfd_byte *contents; Elf_Internal_Rela *irel, *irelend; Elf_Internal_Rela *irelalign; bfd_vma toaddr; Elf32_External_Sym *esym, *esymend; - struct elf_link_hash_entry *sym_hash; + Elf_External_Sym_Shndx *shndx_buf, *shndx; + struct elf_link_hash_entry **sym_hashes; + struct elf_link_hash_entry **end_hashes; + unsigned int symcount; asection *o; symtab_hdr = &elf_tdata (abfd)->symtab_hdr; extsyms = (Elf32_External_Sym *) symtab_hdr->contents; - shndx = _bfd_elf_section_from_bfd_section (abfd, sec); + shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr; + shndx_buf = (Elf_External_Sym_Shndx *) shndx_hdr->contents; + + sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); contents = elf_section_data (sec)->this_hdr.contents; @@ -1534,10 +1571,11 @@ sh_elf_relax_delete_bytes (abfd, sec, addr, count) range to be adjusted, and hence must be changed. */ if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) { - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irel->r_info), - &sym); - if (sym.st_shndx == shndx + esym = extsyms + ELF32_R_SYM (irel->r_info); + shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irel->r_info) : 0); + bfd_elf32_swap_symbol_in (abfd, esym, shndx, &sym); + + if (sym.st_shndx == sec_shndx && (sym.st_value <= addr || sym.st_value >= toaddr)) { @@ -1795,11 +1833,12 @@ sh_elf_relax_delete_bytes (abfd, sec, addr, count) if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info) continue; - bfd_elf32_swap_symbol_in (abfd, - extsyms + ELF32_R_SYM (irelscan->r_info), - &sym); - if (sym.st_shndx == shndx + esym = extsyms + ELF32_R_SYM (irelscan->r_info); + shndx = shndx_buf + (shndx_buf ? ELF32_R_SYM (irelscan->r_info) : 0); + bfd_elf32_swap_symbol_in (abfd, esym, shndx, &sym); + + if (sym.st_shndx == sec_shndx && (sym.st_value <= addr || sym.st_value >= toaddr)) { @@ -1836,40 +1875,40 @@ sh_elf_relax_delete_bytes (abfd, sec, addr, count) } /* Adjust the local symbols defined in this section. */ + shndx = shndx_buf; esym = extsyms; esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; esym++) + for (; esym < esymend; esym++, shndx = (shndx ? shndx + 1 : NULL)) { Elf_Internal_Sym isym; + Elf_External_Sym_Shndx dummy; - bfd_elf32_swap_symbol_in (abfd, esym, &isym); + bfd_elf32_swap_symbol_in (abfd, esym, shndx, &isym); - if (isym.st_shndx == shndx + if (isym.st_shndx == sec_shndx && isym.st_value > addr && isym.st_value < toaddr) { isym.st_value -= count; - bfd_elf32_swap_symbol_out (abfd, &isym, esym); + bfd_elf32_swap_symbol_out (abfd, &isym, (PTR) esym, (PTR) &dummy); } } /* Now adjust the global symbols defined in this section. */ - esym = extsyms + symtab_hdr->sh_info; - esymend = extsyms + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); - for (index = 0; esym < esymend; esym++, index++) + symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) + - symtab_hdr->sh_info); + sym_hashes = elf_sym_hashes (abfd); + end_hashes = sym_hashes + symcount; + for (; sym_hashes < end_hashes; sym_hashes++) { - Elf_Internal_Sym isym; - - bfd_elf32_swap_symbol_in (abfd, esym, &isym); - sym_hash = elf_sym_hashes (abfd)[index]; - if (isym.st_shndx == shndx - && ((sym_hash)->root.type == bfd_link_hash_defined - || (sym_hash)->root.type == bfd_link_hash_defweak) - && (sym_hash)->root.u.def.section == sec - && (sym_hash)->root.u.def.value > addr - && (sym_hash)->root.u.def.value < toaddr) + struct elf_link_hash_entry *sym_hash = *sym_hashes; + if ((sym_hash->root.type == bfd_link_hash_defined + || sym_hash->root.type == bfd_link_hash_defweak) + && sym_hash->root.u.def.section == sec + && sym_hash->root.u.def.value > addr + && sym_hash->root.u.def.value < toaddr) { - (sym_hash)->root.u.def.value -= count; + sym_hash->root.u.def.value -= count; } } @@ -3571,11 +3610,14 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, asymbol **symbols; { Elf_Internal_Shdr *symtab_hdr; + Elf_Internal_Shdr *shndx_hdr; asection *input_section = link_order->u.indirect.section; bfd *input_bfd = input_section->owner; asection **sections = NULL; Elf_Internal_Rela *internal_relocs = NULL; Elf32_External_Sym *external_syms = NULL; + Elf_External_Sym_Shndx *shndx_buf = NULL; + Elf_External_Sym_Shndx *shndx; Elf_Internal_Sym *internal_syms = NULL; /* We only need to handle the case of relaxing, or of having a @@ -3588,6 +3630,7 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, symbols); symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; + shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; memcpy (data, elf_section_data (input_section)->this_hdr.contents, (size_t) input_section->_raw_size); @@ -3598,19 +3641,31 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, Elf_Internal_Sym *isymp; asection **secpp; Elf32_External_Sym *esym, *esymend; - bfd_size_type size; + bfd_size_type amt; if (symtab_hdr->contents != NULL) external_syms = (Elf32_External_Sym *) symtab_hdr->contents; - else + else if (symtab_hdr->sh_info != 0) { - size = symtab_hdr->sh_info; - size *= sizeof (Elf32_External_Sym); - external_syms = (Elf32_External_Sym *) bfd_malloc (size); - if (external_syms == NULL && size != 0) + amt = symtab_hdr->sh_info; + amt *= sizeof (Elf32_External_Sym); + external_syms = (Elf32_External_Sym *) bfd_malloc (amt); + if (external_syms == NULL) goto error_return; if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 - || bfd_bread (external_syms, size, input_bfd) != size) + || bfd_bread ((PTR) external_syms, amt, input_bfd) != amt) + goto error_return; + } + + if (symtab_hdr->sh_info != 0 && shndx_hdr->sh_size != 0) + { + amt = symtab_hdr->sh_info; + amt *= sizeof (Elf_External_Sym_Shndx); + shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt); + if (shndx_buf == NULL) + goto error_return; + if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 + || bfd_bread ((PTR) shndx_buf, amt, input_bfd) != amt) goto error_return; } @@ -3620,41 +3675,35 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, if (internal_relocs == NULL) goto error_return; - size = symtab_hdr->sh_info; - size *= sizeof (Elf_Internal_Sym); - internal_syms = (Elf_Internal_Sym *) bfd_malloc (size); - if (internal_syms == NULL && symtab_hdr->sh_info > 0) + amt = symtab_hdr->sh_info; + amt *= sizeof (Elf_Internal_Sym); + internal_syms = (Elf_Internal_Sym *) bfd_malloc (amt); + if (internal_syms == NULL && amt != 0) goto error_return; - size = symtab_hdr->sh_info; - size *= sizeof (asection *); - sections = (asection **) bfd_malloc (size); - if (sections == NULL && symtab_hdr->sh_info > 0) + amt = symtab_hdr->sh_info; + amt *= sizeof (asection *); + sections = (asection **) bfd_malloc (amt); + if (sections == NULL && amt != 0) goto error_return; - isymp = internal_syms; - secpp = sections; - esym = external_syms; - esymend = esym + symtab_hdr->sh_info; - for (; esym < esymend; ++esym, ++isymp, ++secpp) + for (isymp = internal_syms, secpp = sections, shndx = shndx_buf, + esym = external_syms, esymend = esym + symtab_hdr->sh_info; + esym < esymend; + ++esym, ++isymp, ++secpp, shndx = (shndx ? shndx + 1 : NULL)) { asection *isec; - bfd_elf32_swap_symbol_in (input_bfd, esym, isymp); + bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isymp); if (isymp->st_shndx == SHN_UNDEF) isec = bfd_und_section_ptr; - else if (isymp->st_shndx > 0 && isymp->st_shndx < SHN_LORESERVE) - isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); else if (isymp->st_shndx == SHN_ABS) isec = bfd_abs_section_ptr; else if (isymp->st_shndx == SHN_COMMON) isec = bfd_com_section_ptr; else - { - /* Who knows? */ - isec = NULL; - } + isec = bfd_section_from_elf_index (input_bfd, isymp->st_shndx); *secpp = isec; } @@ -3666,16 +3715,14 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, if (sections != NULL) free (sections); - sections = NULL; if (internal_syms != NULL) free (internal_syms); - internal_syms = NULL; + if (shndx_buf != NULL) + free (shndx_buf); if (external_syms != NULL && symtab_hdr->contents == NULL) free (external_syms); - external_syms = NULL; if (internal_relocs != elf_section_data (input_section)->relocs) free (internal_relocs); - internal_relocs = NULL; } return data; @@ -3684,6 +3731,8 @@ sh_elf_get_relocated_section_contents (output_bfd, link_info, link_order, if (internal_relocs != NULL && internal_relocs != elf_section_data (input_section)->relocs) free (internal_relocs); + if (shndx_buf != NULL) + free (shndx_buf); if (external_syms != NULL && symtab_hdr->contents == NULL) free (external_syms); if (internal_syms != NULL) @@ -3726,12 +3775,9 @@ sh_elf_gc_mark_hook (abfd, info, rel, h, sym) } else { - if (!(elf_bad_symtab (abfd) - && ELF_ST_BIND (sym->st_info) != STB_LOCAL) - && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) - && sym->st_shndx != SHN_COMMON)) - return bfd_section_from_elf_index (abfd, sym->st_shndx); + return bfd_section_from_elf_index (abfd, sym->st_shndx); } + return NULL; } |