Commit Graph

128 Commits

Author SHA1 Message Date
Riku Voipio b32a5c16f1 Use the file_ptr type when calling bfd_seek.
PR ld/19123
	* elfcore.h (elf_core_file_p): Use the file_ptr type to hold the
	offset for bfd_seek.
	* elfcode.h (elf_object_p): Likewise.
2015-10-15 12:56:55 +01:00
H.J. Lu 22abe5566a Rename EM_486 to EM_IAMCU
bfd/

	* elfcode.h (elf_object_p): Replace EM_486 with EM_IAMCU.

binutils/

	* dwarf.c (init_dwarf_regnames): Replace EM_486 with EM_IAMCU.
	* readelf.c (guess_is_rela): Likewise.
	(dump_relocations): Likewise.
	(get_machine_name): Likewise.
	(get_elf_section_flags): Likewise.
	(process_section_headers): Likewise.
	(is_32bit_abs_reloc): Likewise.
	(is_32bit_pcrel_reloc): Likewise.

include/elf/

	* common.h (EM_486): Renamed to ...
	(EM_IAMCU): This.
2015-05-11 08:53:05 -07:00
Nick Clifton 896ca09813 More fixes for invalid memory accesses triggered by fuzzed binaries.
PR binutils/17512
	* nm.c (print_symbol): Add 'is_synthetic' parameter.  Use it to
	help initialize the info.elfinfo field.
	(print_size_symbols): Add 'synth_count' parameter.  Use it to set
	the is_synthetic parameter when calling print_symbol.
	(print_symbols): Likewise.
	(display_rel_file): Pass synth_count to printing function.
	(display_archive): Break loop if the last archive displayed
	matches the current archive.
	* size.c (display_archive): Likewise.

	* archive.c (do_slurp_bsd_armap): Make sure that the parsed sized
	is at least big enough for the header to be read.
	* elf32-i386.c (elf_i386_get_plt_sym_val): Skip unknown relocs.
	* mach-o.c (bfd_mach_o_get_synthetic_symtab): Add range checks.
	(bfd_mach_o_read_command): Prevetn duplicate error messages about
	unrecognized commands.
	* syms.c (_bfd_stab_section_find_nearest_line): Add range checks
	when indexing into the string table.
2015-01-05 23:13:50 +00:00
Alan Modra b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Nick Clifton 06614111d1 More fixes for memory access violations exposed by fuzzed binaries.
PR binutils/17512
	* dwarf.h (struct dwarf_section): Add user_data field.
	* dwarf.c (frame_need_space): Check for an over large register
	number.
	(display_debug_frames): Check the return value from
	frame_need_space.  Check for a CFA expression that is so long the
	start address wraps around.
	(debug_displays): Initialise the user_data field.
	* objdump.c (load_specific_debug_section): Save the BFD section
	pointer in the user_data field of the dwarf_section structure.
	(free_debug_section): Update BFD section data when freeing section
	contents.
	* readelf.c (load_specific_debug_section): Initialise the
	user_data field.

	* archive.c (do_slurp_coff_armap): Add range checks to prevent
	running off the end of the string table.
	* compress.c (bfd_get_full_section_contents): Return a NULL
	pointer for zero sized sections.  Do not attempt to copy a buffer
	onto itself.
	* elf-attrs.c (_bfd_elf_parse_attributes): Check for an empty
	header.  Add range checks to avoid running off the end of the
	section.
	* elf.c (bfd_elf_get_str_section): Seek before allocating so that
	if the seek fails, no memory is allocated.
	(bfd_elf_string_from_elf_section): Do not allocate a string from a
	non string section.  It only leads to trouble later on.
	(_bfd_elf_print_private_bfd_data): Check for there being too
	little external dynamic data.
	(bfd_section_from_shdr): Replace assertion with a failure mode.
	(bfd_section_from_shdr): When walking a loaded group section use
	the internal structure size, not the external size.  Check for the
	group section being empty.
	* elf32-i386.c (elf_i386_rtype_to_howto): Replace assertion with a
	failure mode.
	* elfcode.h (elf_slurp_reloc_table): Likewise.
	* reloc.c (bfd_perform_relocation): Avoid seg-fault if the howto
	parameter is NULL.
2014-12-01 16:43:46 +00:00
Jan Kratochvil 92c9bcd479 Fix regression for Linux vDSO in GDB (PR gdb/17407).
since
	5979d6b69b
	https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=5979d6b69b20a8355ea94b75fad97415fce4788c
	vdso handling
	https://sourceware.org/ml/binutils/2014-03/msg00082.html
	https://sourceware.org/ml/binutils/2014-04/msg00003.html
	Message-ID: <A78C989F6D9628469189715575E55B230AA884EB@IRSMSX104.ger.corp.intel.com>
I get on
	kernel-3.16.2-200.fc20.x86_64
	https://koji.fedoraproject.org/koji/buildinfo?buildID=575860
	attaching its vdso.bin.gz
GDB (FSF HEAD 5e43d46791) regression:
reproducer:
	./gdb -ex start ./gdb
actual result / FAIL:
	Got object file from memory but can't read symbols: File truncated.
expected result / PASS:
	<nothing>
or / PASS:
	warning: Could not load shared library symbols for linux-vdso.so.1.
	Do you need "set solib-search-path" or "set sysroot"?

That "warning: Could not load shared library..." is mostly harmless (it is
a bug in GDB), in the FAIL case it is not printed just because
bfd_check_format() fails there.

It seems logical to me this way when the 'size' parameter has been already
added.
Alan Modra:
I was wrongly thinking that the section headers were
always last when I wrote that code.  (They are now!  If you relink
that vdso with current binutils master you won't hit this problem, but
that of course doesn't help existing kernels.)

I do not see a regression for add-symbol-file-from-memory for libncurses.so.5
from the original thread above.

  Start of section headers:          1080 (bytes into file)
  Size of section headers:           64 (bytes)
  Number of section headers:         13
  Section header string table index: 8
Section Headers:
  [Nr] Name              Type            Address          Off    Size   ES Flg Lk Inf Al
  [ 8] .fake_shstrtab    STRTAB          0000000000000780 000780 000076 00   A  0   0 32
Program Headers:
  Type           Offset   VirtAddr           PhysAddr           FileSiz  MemSiz   Flg Align
  LOAD           0x000000 0x0000000000000000 0x0000000000000000 0x0012fe 0x0012fe R E 0x1000

size == 0x2000
shdr_end == 0x778 == 1080 + 13 * 64
high_offset == 0x12fe

       else if (size >= shdr_end)
-	high_offset = shdr_end;
+	high_offset = size;

But then 0x778 < 0x780 for "Section header string table index" so whole
bfd_check_format() fails because section headers were not cleared here:
  /* If the segments visible in memory didn't include the section headers,
     then clear them from the file header.  */
  if (high_offset < shdr_end)

bfd/ChangeLog
2014-09-18  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/17407
	* elfcode.h (bfd_from_remote_memory): Use SIZE for HIGH_OFFSET.
2014-09-18 08:24:59 +02:00
Alan Modra f0a5d95aae Fix sim breakage
* elf-bfd.h (struct elf_backend_data
	<elf_backend_bfd_from_remote_memory>): Replace "size_t size"
	with "bfd_size_type size".
	(_bfd_elf32_bfd_from_remote_memory): Likewise.
	(_bfd_elf64_bfd_from_remote_memory): Likewise.
	* elf.c (bfd_elf_bfd_from_remote_memory): Likewise.
	* elfcode.h (bfd_from_remote_memory): Likewise.
2014-04-03 11:34:49 +10:30
Alan Modra 5979d6b69b Handle VDSO section headers past end of page
When a VDSO gets large enough that it doesn't entirely fit in one page,
but not so large that the part described by the program header exceeds
one page, then gdb/BFD doesn't read the section headers and symbol
table information.  This patch cures that by passing the size of the
vdso to BFD, and fixes a number of other issues in the BFD code.

bfd/
	* elfcode.h (bfd_from_remote_memory): Add "size" parameter.
	Consolidate code handling possible section headers past end of
	segment.  Don't use p_align for page size guess, instead use
	minpagesize.  Take note of ld.so clearing section headers when
	p_memsz > p_filesz.  Handle file header specifying no section
	headers.  Handle zero p_align throughout.  Default loadbase to
	zero.  Add comments.  Rename contents_size to high_offset, and
	make it a bfd_vma.  Delete unnecessary bfd_set_error calls.
	* bfd-in.h (bfd_elf_bfd_from_remote_memory): Update prototpe.
	* elf-bfd.h (struct elf_backend_data <elf_backend_from_remote_memory>):
	Likewise.
	(_bfd_elf32_bfd_from_remote_memory): Likewise.
	(_bfd_elf64_bfd_from_remote_memory): Likewise.
	* elf.c (bfd_elf_bfd_from_remote_memory): Adjust.
	* bfd-in2.h: Regnerate.
gdb/
	* symfile-mem.c (symbol_file_add_from_memory): Add size parameter.
	Pass to bfd_elf_bfd_from_remote_memory.  Adjust all callers.
	(struct symbol_file_add_from_memory_args): Add size field.
	(find_vdso_size): New function.
	(add_vsyscall_page): Attempt to find vdso size.
2014-04-02 12:07:33 +10:30
Alan Modra 4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Nick Clifton 1be5090bca PR binutils/11983
* archive.c (_bfd_get_elt_at_filepos): Store a copy of the
	filename in the bfd's filename field.
	* elfcode.h (bfd_from_remote_memory): Likewise.
	* ieee.c (ieee_object_p): Likewise.
	* mach-o.c (bfd_mach_o_fat_member_init): Likewise.
	* oasys.c (oasys_openr_next_archived_file): Likewise.
	* vms-lib.c (_bfd_vms_lib_get_module): Likewise.
	* opncls.c (bfd_fopen): Likewise.
	(bfd_openstreamr): Likewise.
	(bfd_openr_iovec): Likewise.
	(bfd_openw): Likewise.
	(bfd_create): Likewise.
	(_bfd_delete_bfd): Free filename.
2014-01-02 12:14:37 +00:00
Alan Modra 12bd695738 bfd/
* elf-bfd.h (struct elf_obj_tdata): Rename segment_map to seg_map.
	Delete num_locals and num_globals.
	(elf_num_locals, elf_num_globals): Don't define.
	(elf_seg_map, elf_next_file_pos, elf_eh_frame_hdr, elf_linker,
	elf_stack_flags, elf_strtab_sec, elf_shstrtab_sec): Define.
	* bfd.c, * elf-eh-frame.c, * elf-nacl.c, * elf-vxworks.c, * elf.c,
	* elf32-arm.c, * elf32-lm32.c, * elf32-ppc.c, * elf32-rx.c,
	* elf32-spu.c, * elf64-hppa.c, * elfcode.h, * elflink.c,
	* elfnn-ia64.c, * elfxx-mips.c: Use newly defined elf_obj_tdata
	accessor macros.
	* elf.c (elf_map_symbols): Add pnum_locals param.  Return
	number of locals syms via new param.
	(swap_out_syms): Adjust to suit elf_map_symbols change.
ld/
	* emultempl/elf-generic.em: Use newly defined elf_obj_tdata
	accessor macros.
2013-02-21 02:29:11 +00:00
Alan Modra 9f7c3e5e99 * elfcode.h (elf_checksum_contents): Free contents.
* elf-bfd.h (_bfd_elf_link_hash_table_free): Declare.
	* elflink.c (_bfd_elf_link_hash_table_free): New function.
	(elf_final_link_free): New function, extracted from..
	(bfd_elf_final_link): ..here.  Always call
	_bfd_elf_write_section_eh_frame_hdr.
	* elfxx-target.h (bfd_elfNN_bfd_link_hash_table_free): Default to
	_bfd_elf_link_hash_table_free.
	* libbfd-in.h (_bfd_merge_sections_free): Declare.
	* libbfd.h: Regenerate.
	* merge.c (_bfd_merge_sections_free): New function.
	* elf-eh-frame.c (_bfd_elf_write_section_eh_frame_hdr): Free
	hdr_info->array.
	* elf-m10300.c (elf32_mn10300_link_hash_table_free): Call
	_bfd_elf_link_hash_table_free.
	* elf32-arm.c (elf32_arm_link_hash_table_free): Likewise.
	* elf32-avr.c (elf32_avr_link_hash_table_free): Likewise.
	* elf32-hppa.c (elf32_hppa_link_hash_table_free): Likewise.
	* elf32-i386.c (elf_i386_link_hash_table_free): Likewise.
	* elf32-m68hc1x.c (m68hc11_elf_hash_table_free): Likewise.
	* elf32-m68k.c (elf_m68k_link_hash_table_free): Likewise.
	* elf32-metag.c (elf_metag_link_hash_table_free): Likewise.
	* elf32-xgate.c (xgate_elf_bfd_link_hash_table_free): Likewise.
	* elf64-aarch64.c (elf64_aarch64_link_hash_table_free): Likewise.
	* elf64-ia64-vms.c (elf64_ia64_hash_table_free): Likewise.
	* elf64-ppc.c (ppc64_elf_link_hash_table_free): Likewise.
	* elf64-x86-64.c (elf_x86_64_link_hash_table_free): Likewise.
	* elfnn-ia64.c (elfNN_ia64_hash_table_free): Likewise.
	* elf32-cr16.c (elf32_cr16_link_hash_table_free): Delete.
	(bfd_elf32_bfd_link_hash_table_free): Don't define.
	* elf32-tic6x.c (elf32_tic6x_link_hash_table_free): Delete.
	(bfd_elf32_bfd_link_hash_table_free): Dont' define.
2013-02-11 05:30:54 +00:00
Alan Modra c9ba0c87bf * bfd.c (struct bfd_preserve, bfd_preserve_save, bfd_preserve_restore,
bfd_preserve_finish): Move to..
	* format.c: ..here, splitting out..
	(bfd_reinit): ..this.  New function.
	(bfd_check_format_matches): Use bfd_preserve_save/restore to
	keep bfd state for a match.
	* elfcode.h (elf_object_p): Don't use bfd_preserve_save/restore.
	* elfcore.h (elf_core_file_p): Likewise.
	* mach-o.c (bfd_mach_o_header_p): Likewise.
	* pef.c (bfd_pef_object_p, bfd_pef_xlib_object_p): Likewise.
	* xsym.c (bfd_sym_object_p): Likewise.
	* mmo.c (mmo_scan): Clear abfd->symcount.
	* opncls.c (_bfd_new_bfd): Use a smaller section hash table.
	* section.c (bfd_section_list_clear): Clear section_htab.count.
	* bfd-in2.h: Regenerate.
2013-01-26 02:08:01 +00:00
H.J. Lu 1c52a64577 Check number of sections overflow
* elf.c (assign_section_numbers): Check if number of sections
	>= SHN_LORESERVE.
	* elfcode.h (elf_object_p): Likewise.
2012-07-04 00:29:52 +00:00
Jan Kratochvil fe78531dcf bfd/
* bfd-in.h (bfd_elf_bfd_from_remote_memory): Make LEN argument
	of target_read_memory as bfd_size_type.
	* bfd-in2.h: Regenerate.
	* elf-bfd.h (elf_backend_bfd_from_remote_memory): Make LEN
	argument of target_read_memory as bfd_size_type.
	(_bfd_elf32_bfd_from_remote_memory): Likewise.
	(_bfd_elf64_bfd_from_remote_memory): Likewise.
	* elf.c (bfd_elf_bfd_from_remote_memory): Likewise.
	* elfcode.h (NAME(_bfd_elf,bfd_from_remote_memory)): Likewise.

gdb/
	* symfile-mem.c: 3 new gdb_static_assert for target_read_memory_bfd
	parameters.
	(target_read_memory_bfd): New function.
	(symbol_file_add_from_memory): Use it.
2012-06-04 14:35:25 +00:00
Jan Kratochvil 5299c1c488 bfd/
* bfd-in.h (bfd_elf_bfd_from_remote_memory): Make LEN argument
	of target_read_memory as size_t.
	* bfd-in2.h: Regenerate.
	* elf-bfd.h (elf_backend_bfd_from_remote_memory): Make LEN
	argument of target_read_memory as size_t.
	(_bfd_elf32_bfd_from_remote_memory): Likewise.
	(_bfd_elf64_bfd_from_remote_memory): Likewise.
	* elf.c (bfd_elf_bfd_from_remote_memory): Likewise.
	* elfcode.h (NAME(_bfd_elf,bfd_from_remote_memory)): Likewise.

gdb/
	* target.c (target_read_memory): Make LEN argument as size_t.
	* target.h (target_read_memory): Likewise.
2012-06-01 16:37:59 +00:00
Alan Modra 45dfa85a1e Replace all uses of bfd_abs_section, bfd_com_section, bfd_und_section
and bfd_ind_section with their _ptr variants, or use corresponding
bfd_is_* macros.
2012-05-05 03:05:32 +00:00
Nick Clifton 0d13c96b21 When computing checksums, skip the contents of sections with the SHT_NOBITS type.
Revert change to compress.c
2011-12-14 16:12:13 +00:00
Nick Clifton 4d48ecf313 PR ld/12451
* elfcode.h (elf_checksum_contents): Read in the section's
	contents if they are not already available.
	* compress.c (bfd_get_full_section_contents): Use zmalloc to
	allocate the buffers so that excess bytes are guaranteed to be
	zero.
2011-12-14 11:50:13 +00:00
Alan Modra 0aabe54e62 * targets.c (bfd_target): Make ar_max_namelen an unsigned char.
Add match_priority.
	* configure.in: Bump bfd version.
	* elfcode.h (elf_object_p): Delete hacks preventing match of
	EM_NONE and ELFOSABI_NONE targets when a better match exists.
	* elfxx-target.h (elf_match_priority): Define and use.
	* format.c (bfd_check_format_matches): Use target match_priority
	to choose best of multiple matching targets.  In cases with multiple
	matches rerun _bfd_check_format if we don't choose the last match.
	* aout-adobe.c, * aout-arm.c, * aout-target.h, * aout-tic30.c,
	* binary.c, * bout.c, * coff-alpha.c, * coff-i386.c, * coff-i860.c,
	* coff-i960.c, * coff-ia64.c, * coff-mips.c, * coff-or32.c,
	* coff-ppc.c, * coff-rs6000.c, * coff-sh.c, * coff-tic30.c,
	* coff-tic54x.c, * coff-x86_64.c, * coff64-rs6000.c, * coffcode.h,
	* i386msdos.c, * i386os9k.c, * ieee.c, * ihex.c, * mach-o-target.c,
	* mipsbsd.c, * mmo.c, * nlm-target.h, * oasys.c, * pdp11.c,
	* pe-mips.c, * pef.c, * plugin.c, * ppcboot.c, * som.c, * srec.c,
	* tekhex.c, * trad-core.c, * verilog.c, * versados.c, * vms-alpha.c,
	* vms-lib.c, * xsym.c: Init match_priority field.
	* configure: Regenerate.
	* bfd-in2.h: Regenerate.
2011-06-06 01:26:05 +00:00
H.J. Lu 70b554c98b Revert the last change on elf_object_p.
2011-06-04  H.J. Lu  <hongjiu.lu@intel.com>

	PR ld/12842
	* elfcode.h (elf_object_p): Revert the last change.
2011-06-04 18:16:17 +00:00
Alan Modra d50ec8a7e1 * archures.c (bfd_arch_get_compatible): If one arch is unknown,
return the other arch.
	* elfcode.h (elf_object_p): Allow explicit match to generic ELF
	target.
2011-06-04 04:07:54 +00:00
Alan Modra 02d002477b PR ld/12365
bfd/
	* elfcode.h (elf_slurp_symbol_table): Put common plugin IR symbols
	in their own common section.
	* elflink.c (elf_link_add_object_symbols): Likewise.
	* linker.c (generic_link_check_archive_element): Don't lose flags
	if common section is pre-existing.
	(_bfd_generic_link_add_one_symbol): Likewise.
ld/
	* ldfile.c (ldfile_try_open_bfd): Move code creating and switching
	to plugin IR BFD..
	* ldmain.c (add_archive_element): ..and similar code here..
	* plugin.c (plugin_maybe_claim): ..to here.  New function.
	(plugin_call_claim_file): Make static.
	(asymbol_from_plugin_symbol): Set ELF st_shndx for common syms.
	(plugin_multiple_common): New function.
	(plugin_call_all_symbols_read): Hook in plugin_multiple_common.
	* plugin.h (plugin_call_claim_file): Don't declare.
	(plugin_maybe_claim): Declare.
2011-04-20 00:22:08 +00:00
Richard Sandiford 35fc36a8d6 include/elf/
* internal.h (elf_internal_sym): Add st_target_internal.
	* arm.h (arm_st_branch_type): New enum.
	(ARM_SYM_BRANCH_TYPE): New macro.

bfd/
	* elf-bfd.h (elf_link_hash_entry): Add target_internal.
	* elf.c (swap_out_syms): Set st_target_internal for each
	Elf_Internal_Sym.
	* elfcode.h (elf_swap_symbol_in): Likewise.
	* elf32-i370.c (i370_elf_finish_dynamic_sections): Likewise.
	* elf32-sh-symbian.c (sh_symbian_relocate_section): Likewise.
	* elf64-sparc.c (elf64_sparc_output_arch_syms): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_size_dynamic_sections): Likewise.
	* elflink.c (elf_link_output_extsym): Likewise.
	(bfd_elf_final_link): Likewise.
	(elf_link_add_object_symbols): Copy st_target_internal
	to the hash table if we see a definition.
	(_bfd_elf_copy_link_hash_symbol_type): Copy target_internal.
	* elf32-arm.c (elf32_arm_stub_hash_entry): Replace st_type with
	a branch_type field.
	(a8_erratum_fix, a8_erratum_reloc): Likewise.
	(arm_type_of_stub): Replace actual_st_type with an
	actual_branch_type parameter.
	(arm_build_one_stub): Use branch types rather than st_types to
	determine the type of branch.
	(cortex_a8_erratum_scan): Likewise.
	(elf32_arm_size_stubs): Likewise.
	(bfd_elf32_arm_process_before_allocation): Likewise.
	(allocate_dynrelocs_for_symbol): Likewise.
	(elf32_arm_finish_dynamic_sections): Likewise.
	(elf32_arm_final_link_relocate): Replace sym_flags parameter with
	a branch_type parameter.
	(elf32_arm_relocate_section): Update call accordingly.
	(elf32_arm_adjust_dynamic_symbol): Don't check STT_ARM_TFUNC.
	(elf32_arm_output_map_sym): Initialize st_target_internal.
	(elf32_arm_output_stub_sym): Likewise.
	(elf32_arm_symbol_processing): Delete.
	(elf32_arm_swap_symbol_in): Convert STT_ARM_TFUNCs into STT_FUNCs.
	Use st_target_internal to record the branch type.
	(elf32_arm_swap_symbol_out): Use st_target_internal to test for
	Thumb functions.
	(elf32_arm_is_function_type): Delete.
	(elf_backend_symbol_processing): Likewise.
	(elf_backend_is_function_type): Likewise.

gas/
	* config/tc-arm.c (arm_adjust_symtab): Set the branch type
	for Thumb symbols.

ld/
	* emultempl/armelf.em (gld${EMULATION_NAME}_finish): Check
	eh->target_internal.

opcodes/
	* arm-dis.c (get_sym_code_type): Don't check for STT_ARM_TFUNC.
	Use branch types instead.
	(print_insn): Likewise.
2011-03-14 15:55:04 +00:00
H.J. Lu a836572f89 Move elfXX_r_info/elfXX_r_sym to elfcode.h.
2010-12-30  H.J. Lu  <hongjiu.lu@intel.com>

	* elfcode.h (NAME(elf,r_info)): New.
	(NAME(elf,r_sym)): Likewise.

	* elflink.c (elf64_r_info): Removed.
	(elf32_r_info): Likewise.
	(elf64_r_sym): Likewise.
	(elf32_r_sym): Likewise.
2010-12-31 02:43:21 +00:00
Bernd Schmidt d4730f921a bfd/
* elf-bfd.h (struct bfd_elf_section_reloc_data): New structure.
	(struct bfd_elf_section_data): New members REL and RELA; delete
	members REL_HDR, REL_HDR2, REL_COUNT, REL_COUNT2, REL_IDX,
	REL_IDX2, REL_HASHES.
	(_bfd_elf_init_reloc_shdr): Adjust declaration.
	(_bfd_elf_single_rel_hdr): Declare.
	(RELOC_AGAINST_DISCARDED_SECTION): Use it.
	* elf.c (bfd_section_from_shdr): Adjusted to match changes in
	data structures.
	(_bfd_elf_init_reloc_shdr): New arg RELDATA.  Remove arg REL_HDR.
	All callers changed.  Allocate memory for the Elf_Internal_Shdr
	structure.
	(_bfd_elf_single_rel_hdr): New function.
	(struct fake_section_arg): New structure.
	(elf_fake_section): Expect to see a pointer to it in the third
	argument.  If doing a relocatable link, allocate both REL and RELA
	sections as needed.
	(assign_section_numbers): Adjusted to match changes in
	data structures.
	(_bfd_elf_compute_section_file_positions): Call elf_fake_sections
	with a struct fake_section_args argument.
	* elfcode.h (elf_write_relocs): Adjusted to match changes in
	data structures.
	(elf_slurp_reloc_table): Likewise.
	* elflink.c (_bfd_elf_link_read_relocs): Likewise.
	(_bfd_elf_link_size_reloc_section): Remove arg REL_HDR, replace with
	RELDATA.  Remove argument O.  All callers changed.  Remove code to
	discover the right rel_hdr and count.
	(_bfd_elf_link_output_relocs): Adjusted to match changes in
	data structures.
	(elf_link_adjust_relocs): Remove args REL_HDR, COUNT and REL_HASH;
	replace with RELDATA.  All callers changed.
	(elf_link_input_bfd): Correctly generate rel_hash data when both
	REL and RELA sections are present.
	(elf_reloc_link_order): Adjusted to match changes in
	data structures.
	(bfd_elf_final_link): Simplify code to count relocs.  Free the
	hashes array for both REL and RELA.
	(get_dynamic_reloc_section_name): Use _bfd_elf_single_reloc_hdr
	* elf32-m32r.c (m32r_elf_fake_sections, elf_backend_fake_sections):
	Delete.
	* elf32-tic6x.c (elf32_tic6x_fake_sections, elf_backend_fake_sections):
	Delete.
	(elf32_tic6x_rel_relocation_p): Adjusted to match changes in
	data structures.
 	* elf32-microblaze.c (microblaze_elf_check_relocs): Use
	_bfd_elf_single_rel_hdr.
	* elf32-ppc.c (ppc_elf_relax_section): Likewise.
	* elf32-spu.c (spu_elf_relocate_section): Likewise.
	* elf64-alpha.c (elf64_alpha_relocate_section): Likewise.
	* elf64-hppa.c (get_reloc_section): Likewise.
	* elf64-mips.c (mips_elf64_slurp_reloc_table): Adjusted to match
	changes in data structures.
	(mips_elf64_write_relocs): Use _bfd_elf_single_rel_hdr.
	* elf64-ppc.c (ppc64_elf_edit_opd): Likewise.
	(ppc64_elf_edit_toc): Likewise.
	(get_relocs): Adjusted to match changes in data structures.
	Allocate an Elf_Internal_Shdr structure if necessary.
	(ppc64_elf_finish_dynamic_sections): Use _bfd_elf_single_rel_hdr.
	* elf64-sparc.c (elf64_sparc_slurp_reloc_table): Adjusted to match
	changes in data structures.
	* elfxx-ia64.c (get_reloc_section): Use _bfd_elf_single_rel_hdr.
	* elfxx-mips.c (MIPS_RELOC_RELA_P): Remove macro.
	(mips_elf_rel_relocation_p): Adjusted to match changes in data
	structures.
	(_bfd_mips_elf_relocate_section): Use mips_elf_rel_relocation_p rather
	than MIPS_RELOC_RELOCA_P.
	* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Use
	_bfd_elf_single_rel_hdr.
	(_bfd_sparc_elf_relocate_section): Likewise.

ld/
	* emultempl/xtensaelf.em (replace_insn_sec_with_prop_sec): Use
	_bfd_elf_single_rel_hdr.
2010-10-04 14:13:10 +00:00
Thomas Schwinge cf35638d43 2010-09-24 Thomas Schwinge <thomas@codesourcery.com>
* elf32-arm.c, elf32-cris.c, elf32-hppa.c, elf32-i370.c, elf32-m32r.c,
	elf32-m68k.c, elf32-microblaze.c, elf32-ppc.c, elf32-score.c,
	elf32-score7.c, elf32-sh.c, elf32-vax.c, elf32-xtensa.c, elf64-alpha.c,
	elf64-hppa.c, elf64-mips.c, elf64-ppc.c, elf64-sparc.c, elfcode.h,
	elflink.c, elfxx-ia64.c, elfxx-mips.c: Use STN_UNDEF when referring to
	the zero symbol index.
2010-09-24 12:14:26 +00:00
Pedro Alves 261b8d0859 2010-08-18 Pedro Alves <pedro@codesourcery.com>
PR corefile/8210

	bfd/
	* bfd-in2.h: Regenerate.
	* corefile.c (bfd_core_file_pid): New.

	* targets.c (BFD_JUMP_TABLE_CORE): Add NAME##_core_file_pid.
	(struct bfd_target) <_core_file_pid>: New.

	* libbfd-in.h (_bfd_nocore_core_file_pid): Declare.
	* libbfd.c (_bfd_nocore_core_file_pid): New.

	* elf-bfd.h (bfd_elf32_core_file_pid, bfd_elf64_core_file_pid):
	Declare.
	* elfcode.h (elf_core_file_pid): New define.
	* elfcore.h (elf_core_file_pid): New function.

	* elf.c (elfcore_make_pid): Rewrite.
	(elfcore_grok_prstatus): Only set core_pid if not set yet.
	(elfcore_grok_prstatus) [!HAVE_PRSTATUS_T_PR_WHO]: Fallback to
	getting the lwpid from prstat.pr_pid.

	* elf64-x86-64.c (elf64_x86_64_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	(elf64_x86_64_grok_psinfo): Extract the the main process's PID,
	and store it in elf_tdata's core_pid field.
	* elf32-i386.c (elf_i386_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	(elf_i386_grok_psinfo): Extract the the main process's PID, and
	store it in elf_tdata's core_pid field.

	* elf32-am33lin.c (elf32_am33lin_grok_prstatus): Write the LWPID
	to elf_tdata's core_lwpid instead of to core_pid.
	* elf32-arm.c (elf32_arm_nabi_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-cris.c (cris_elf_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-frv.c (elf32_frv_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-hppa.c (elf32_hppa_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-mips.c (elf32_mips_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-ppc.c (ppc_elf_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-s390.c (elf_s390_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-score.c (s3_bfd_score_elf_grok_prstatus): Write the LWPID
	to elf_tdata's core_lwpid instead of to core_pid.
	* elf32-score7.c (s7_bfd_score_elf_grok_prstatus): Write the LWPID
	to elf_tdata's core_lwpid instead of to core_pid.
	* elf32-sh.c (elf32_shlin_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf32-xtensa.c (elf_xtensa_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf64-hppa.c (elf64_hppa_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf64-mips.c (elf64_mips_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elf64-ppc.c (ppc64_elf_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.
	* elfn32-mips.c (elf32_mips_grok_prstatus): Write the LWPID to
	elf_tdata's core_lwpid instead of to core_pid.

	* plugin.c (bfd_plugin_core_file_pid): New function.
	* aout-target.h (MY_core_file_pid): Define.
	* aout-tic30.c (MY_core_file_pid, MY_core_file_p): New defines.
	* coff-rs6000.c (coff_core_file_pid): New define.
	(rs6000coff_vec, pmac_xcoff_vec): Use BFD_JUMP_TABLE_CORE.
	* coff64-rs6000.c (coff_core_file_pid): New define.
	(rs6000coff64_vec): Use BFD_JUMP_TABLE_CORE.
	(xcoff64_core_file_pid): New define.
	(aix5coff64_vec): Use BFD_JUMP_TABLE_CORE.
	* mach-o-target.c (bfd_mach_o_core_file_pid): New define.
	* aix386-core.c (aix386_core_file_pid): New define.
	* hppabsd-core.c (hppabsd_core_core_file_pid): New define.
	* hpux-core.c (hpux_core_core_file_pid): New define.
	* irix-core.c (irix_core_core_file_pid): New define.
	* lynx-core.c (lynx_core_file_pid): New define.
	* osf-core.c (osf_core_core_file_pid): New define.
	* ptrace-core.c (ptrace_unix_core_file_pid): New define.
	* sco5-core.c (sco5_core_file_pid): New define.
	* xcoff-target.h (coff_core_file_pid): New define.
	* netbsd-core.c (netbsd_core_core_file_pid): New define.

gdb/
2010-08-18  Pedro Alves  <pedro@codesourcery.com>

	PR corefile/8210

	gdb/
	* corelow.c (add_to_thread_list): Don't use
	gdbarch_core_reg_section_encodes_pid.  Use bfd_core_file_pid.
	(get_core_register_section): Don't use
	gdbarch_core_reg_section_encodes_pid.

	* gdbarch.sh (core_reg_section_encodes_pid): Delete.
	* gdbarch.h, gdbarch.c: Regenerate.
	* amd64-sol2-tdep.c (amd64_sol2_init_abi): Don't set
	gdbarch_core_reg_section_encodes_pid.
	* i386-sol2-tdep.c (i386_sol2_init_abi): Ditto.
	* sparc-sol2-tdep.c (sparc32_sol2_init_abi): Ditto.
	* sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Ditto.
2010-08-18 12:24:13 +00:00
Tristan Gingold 65077aa815 2010-05-25 Tristan Gingold <gingold@adacore.com>
* bfdio.c: Declare and define _bfd_memory_iovec.
	(bfd_bread): Move code for BFD_IN_MEMORY...
	(bfd_bwrite): ... Ditto ...
	(bfd_tell): ... Ditto ...
	(bfd_flush): ... Ditto ...
	(bfd_stat): ... Ditto ...
	(bfd_seek): ... Ditto ...
	(bfd_get_size): ... Ditto ...
	(bfd_mmap): ... Ditto ...
	(memory_bread): ... to these new functions.
	(memory_bwrite): Ditto.
	(memory_btell): Ditto.
	(memory_bseek): Ditto.
	(memory_bflush): Ditto.
	(memory_bstat): Ditto.
	(memory_bmmap): Ditto.
	(memory_bclose): New function.
	* peicode.h (pe_ILF_build_a_bfd): Use BFD_IN_MEMORY.
	* xcofflink.c (bfd_xcoff_link_generate_rtinit): Ditto.
	* opncls.c (bfd_close): Do not handle BFD_IN_MEMORY case.
	(bfd_make_writable): Use _bfd_memory_iovec.
	* elfcode.h (bfd_from_remote_memory): Use _bfd_memory_iovec.
	* coff-alpha.c (alpha_ecoff_get_elt_at_filepos): Use
	_bfd_memory_iovec.
	(alpha_ecoff_openr_next_archived_file): Use proxy_origin
	instead of origin.
	* libbfd.h: Regenerate.
2010-05-26 07:37:36 +00:00
Alan Modra ecd12bc14d * elfcode.h (elf_swap_ehdr_out): Handle e_phnum > 0xffff.
(elf_object_p): Read e_phnum extension.
	(elf_write_shdrs_and_ehdr): Write e_phnum extension.
        * elfcore.h (elf_core_file_p): Read e_phnum extension.  Sanity check
	that we can read last program header.
2010-01-19 13:50:55 +00:00
Nick Clifton caa83f8b08 PR 10478
* elf.c (bfd_section_from_shdr): Allow SHN_BEFORE and SHN_AFTER
        section link values in x86 binaries.
        * elfcode.h (elf_object_p): Likewise.
        * readelf.c (get_elf_section_flags): Allow SHN_BEFORE and
        SHN_AFTER section link values in x86 binaries.
        (process_section_headers): Likewise.
2009-09-28 09:45:33 +00:00
Nick Clifton a50b1753d4 Updated soruces in bfd/* to compile cleanly with -Wc++-compat.
* bfd/aoutx.h: Add casts.
        * bfd/archive.c: Add casts.
        * bfd/archive64.c: Add casts.
        * bfd/archures.c: Add casts.
        * bfd/bfd-in2.h: Regenerated.
        * bfd/bfd.c: Add casts. (enum bfd_direction): Move out to top
        level.
        * bfd/bfdio.c: Add casts.
        * bfd/binary.c: Add casts.
        * bfd/cache.c (cache_bseek,cache_bread_1,cache_bwrite): Updated
        parameter to use enum value instead of int.
        * bfd/coffcode.h: Add casts.
        * bfd/coffgen.c: Add casts.
        * bfd/cofflink.c: Add casts.
        * bfd/compress.c: Add casts.
        * bfd/dwarf1.c: Add casts.
        * bfd/dwarf2.c: Add casts. (struct dwarf2_debug): Rename member
        bfd to bfd_ptr. Update code to use new name.
        * bfd/elf-attrs.c: Add casts.
        * bfd/elf-bfd.h (elf_link_virtual_table_entry): Gives name to
        anonymous struct. (union gotplt_union, struct
        elf_link_virtual_table_entry): Move to top level.
        * bfd/elf-eh-frame.c: Add casts.
        * bfd/elf-strtab.c: Add casts.
        * bfd/elf.c: Add casts. (_bfd_elm_make_Section_from_phdr): Change
        argument name from typename to type_name.
        * bfd/elf32-i386.c: Add casts.
        * bfd/elf64-x86-64.c: Add casts.
        * bfd/elfcode.h: Add casts.
        * bfd/elfcore.h: Add casts.
        * bfd/elflink.c: Add casts.
        * bfd/format.c: Add casts.
        * bfd/hash.c: Add casts.
        * bfd/ihex.c: Add casts.
        * bfd/libaout.h (enum aout_subformat, enum aout_magic): Move to
        top level.
        * bfd/libbfd.c: Add casts.
        * bfd/linker.c: Add casts.
        * bfd/merge.c: Add casts.
        * bfd/opncls.c: Add casts.
        * bfd/peXXigen.c: Add casts.
        * bfd/peicode.h: Add casts.
        * bfd/reloc.c: Add casts.
        * bfd/section.c: Add casts.
        * bfd/simple.c: Add casts.
        * bfd/srec.c: Add casts.
        * bfd/stabs.c: Add casts.
        * bfd/syms.c: Add casts.
        * bfd/targets.c: Add casts.
        * bfd/tekhex.c: Add casts.
        * bfd/verilog.c: Add casts.
        * include/bfdlink.h (struct bfd_link_hash_common_entry): Move to
        top level.
2009-09-09 21:38:59 +00:00
Nick Clifton cfcac11dc8 PR 10478:
* elf.c (bfd_section_from_shdr): Do not reject sparc binaries with
        section headers containing sh_link values of SHN_BEFORE or
        SHN_AFTER.
        * elfcode.h (elf_object_p): Likewise.

        readelf.c (get_elf_section_flags): Add support for SHF_EXCLUDE and
        SHF_ORDERED.
        (process_section_headers): Warn about out of range sh_link
        values.  When displaying detailed section header information
        annote the SHN_BEFORE and SHN_AFTER values.
2009-09-09 15:03:54 +00:00
Nick Clifton 3e7a7d11f1 * config/obj-elf.c (obj_elf_type): Add code to support a type of
gnu_unique_object.
        * doc/as.texinfo: Document new feature of .type directive.
        * NEWS: Mention support for gnu_unique_object symbol type.

        * common.h (STB_GNU_UNIQUE): Define.

        * NEWS: Mention the linker's support for symbols with a binding of
        STB_GNU_UNIQUE.

        * gas/elf/type.s: Add unique global symbol definition.
        * gas/elf/type.e: Add expected readelf output for global unique
        symbol.

        * elfcpp.h (enum STB): Add STB_GNU_UNIQUE.

        * readelf.c (get_symbol_binding): For Linux targeted files return
        UNIQUE for symbols with the STB_GNU_UNIQUE binding.
        * doc/binutils.texi: Document the meaning of the 'u' symbol
        binding in the output of nm and objdump --syms.

        * elf-bfd.h (struct elf_link_hash_entry): Add unique_global field.
        * elf.c (swap_out_syms): Set binding to STB_GNU_UNIQUE for symbols
        with the BSF_GNU_UNIQUE flag bit set.
        * elfcode.h (elf_slurp_symbol_table): Set the BSF_GNU_UNIQUE flag
        for symbols with STB_GNU_UNIQUE binding.
        * elflink.c (_bfd_elf_merge_symbol): Set unique_global for symbols
        with the STB_GNU_UNIQUE binding.
        (elf_link_add_object_symbols): Set the BSF_GNU_UNIQUE flag for
        symbols with STB_GNU_UNIQUE binding.  Set STB_GNU_UNIQUE for
        symbols with the unique_global field set.
        (elf_link_output_extsym): Set unique_global field for symbols with
        the STB_GNU_UNIQUE binding.
        * syms.c (struct bfd_symbol): Define BSF_GNU_UNIQUE flag bit.
        (bfd_print_symbol_vandf): Print a 'u' character for BSF_GNU_UNIQUE
        symbols.
        (bfd_decode_symclass): Return a 'u' character for BSF_GNU_UNIQUE
        symbols.
        * bfd-in2.h: Regenerate.
2009-07-23 13:00:30 +00:00
Nick Clifton d8045f234d include/elf
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * common.h (STT_GNU_IFUNC): Define.

elfcpp
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * (enum STT): Add STT_GNU_IFUNC.

gas
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * config/obj-elf.c (obj_elf_type): Add support for a
        gnu_indirect_function type.
        * config/tc-i386.c (tc_i386_fix_adjustable): Do not adjust fixups
        against indirect function symbols.
        * doc/as.texinfo (.type): Document the support for the
        gnu_indirect_function symbol type.
        * NEWS: Mention the new feature.

gas/testsuite
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * gas/elf/elf.exp: Extend type test to include an ifunc symbol.
        Provide an alternative test for targets which do not support ifunc
        symbols.
        (type.s): Add entry for an ifunc symbol.
        (type.e): Add ifunc entry to expected symbol dump.
        (section2.e-armelf): Add  entry for ifunc symbol.
        (type-noifunc.s): New file.
        (type-noifunc.e): New file.

bfd/
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs
        section pointer.
        (struct elf_obj_data): Add has_ifunc_symbols boolean.
        * elf.c (swap_out_syms): Convert BSF_GNU_INDIRECT_FUNCTION flags
        into a STT_GNU_IFUNC symbol type.
        (_bfd_elf_is_function_type): Accept STT_GNU_IFUNC as a function
        type.
        (_bfd_elf_set_osabi): Set the osasbi field to ELFOSABI_LINUX if
        the binary contains ifunc symbols.
        * elfcode.h (elf_slurp_symbol_table): Translate the STT_GNU_IFUNC
        symbol type into a BSF_GNU_INDIRECT_FUNCTION flag.
        * elf32-i386.c (is_indirect_function): New function.
        (elf_i386_check_relocs): Create an ifunc output section.
        (allocate_dynrelocs): Create dynamic relocs in the ifunc output
        section if necessary.
        (elf_i386_relocate_section): Emit a reloc against an ifunc symbol
        if necessary.
        (elf_i386_add_symbol_hook): New function. Set the
        has_ifunc_symbols field of the elf_obj_data structure if an ifunc
        symbol is encountered.
        (elf_backend_post_process_headers): Define.
        (elf_backend_add_symbol_hook): Define.
        (elf_i386_post_process_headers): Rename to
        elf_i388_fbsd_post_process_headers.
        * elf64-x86_64.c (IS_X86_64_PCREL_TYPE): New macro.
        (is_indirect_function): New function.
        (elf64_x86_64_check_relocs): Create an ifunc output section.
        (allocate_dynrelocs): Create dynamic relocs in the ifunc output
        section if necessary.
        (elf64_x86_64_relocate_section): Emit a reloc against an ifunc
        symbol if necessary.
        (elf_i386_add_symbol_hook): Set the has_ifunc_symbols field of the
        elf_obj_data structure if an ifunc symbol is encountered.
        (elf_backend_post_process_headers): Define.
        * elflink.c (_bfd_elf_adjust_dynamic_symbol): Always create a PLT
        if we have ifunc symbols to handle.
        (get_ifunc_reloc_section_name): New function.  Computes the name
        for an ifunc section.
        (_bfd_elf_make_ifunc_reloc_section): New function.  Creates a
        section to hold ifunc relocs.
        * syms.c (BSF_GNU_INDIRECT_FUNCTION): Define.
        (bfd_print_symbol_vandf): Handle ifunc symbols.
        (bfd_decode_symclass): Likewise.
        * bfd-in2.h: Regenerate.

binutils
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * readelf.c (dump_relocations): Display a relocation against an
        ifunc symbol as if it were a function invocation.
        (get_symbol_type): Handle STT_GNU_IFUNC.

ld
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * NEWS: Mention support for IFUNC symbols.

ld/testsuite
2009-04-30  Nick Clifton  <nickc@redhat.com>

        * ld-ifunc: New directory.
        * ld-ifunc/ifunc.exp: New file: Run the IFUNC tests.
        * ld-ifunc/prog.c: New file.
        * ld-ifunc/lib.c: New file.
2009-04-30 15:47:13 +00:00
Nick Clifton 0f88be7a13 Remove STT_IFUNC support. 2008-12-23 09:01:51 +00:00
Nick Clifton e7c3341679 include/elf/
* common.h (STT_IFUNC): Define.
elfcpp/
            * elfcpp.h (enum STT): Add STT_IFUNC.
bfd/
            * syms.c (struct bfd_symbol): Add new flag BSF_INDIRECT_FUNCTION.
            Remove redundant flag BFD_FORT_COMM_DEFAULT_VALUE.  Renumber flags
            to remove gaps.
            (bfd_print_symbol_vandf): Return 'i' for BSF_INDIRECT_FUNCTION.
            (bfd_decode_symclass): Likewise.
            * elf.c (swap_out_syms): Translate BSF_INDIRECT_FUNCTION into
            STT_IFUNC.
            (elf_find_function): Treat STT_IFUNC in the same way as STT_FUNC.
            (_bfd_elf_is_function_type): Likewise.
            * elf32-arm.c (arm_elf_find_function): Likewise.
            (elf32_arm_adjust_dynamic_symbol): Likewise.
            (elf32_arm_swap_symbol_in): Likewise.
            (elf32_arm_additional_program_headers): Likewise.
            * elf32-i386.c (is_indirect_symbol): New function.
            (elf_i386_check_relocs): Also generate dynamic relocs for
            relocations against STT_IFUNC symbols.
            (allocate_dynrelocs): Likewise.
            (elf_i386_relocate_section): Likewise.
            * elf64-x86-64.c (is_indirect_symbol): New function.
            (elf64_x86_64_check_relocs): Also generate dynamic relocs for
            relocations against STT_IFUNC symbols.
            (allocate_dynrelocs): Likewise.
            (elf64_x86_64_relocate_section): Likewise.
            * elfcode.h (elf_slurp_symbol_table): Translate STT_IFUNC into
            BSF_INDIRECT_FUNCTION.
            * elflink.c (_bfd_elf_adjust_dynamic_reloc_section): Add support
            for STT_IFUNC symbols.
            (get_ifunc_reloc_section_name): New function.
            (_bfd_elf_make_ifunc_reloc_section): New function.
            * elf-bfd.h (struct bfd_elf_section_data): Add indirect_relocs field.
            * bfd-in2.h: Regenerate.
gas/
            * config/obj-elf.c (obj_elf_type): Add support for STT_IFUNC type.
            * doc/as.texinfo: Document new feature.
            * NEWS: Mention new feature.
gas/testsuite/
            * gas/elf/type.s: Add test of STT_IFUNC symbol type.
            * gas/elf/type.e: Update expected disassembly.
            * gas/elf/elf.exp: Update grep of symbol types.
ld/
            * NEWS: Mention new feature.
            * pe-dll.c (process_def_file): Replace use of redundant
            BFD_FORT_COMM_DEFAULT_VALUE with 0.
            * scripttempl/elf.sc: Add .rel.ifunc.dyn and .rela.ifunc.dyn
            sections.
ld/testsuite/
            * ld-mips-elf/reloc-1-n32.d: Updated expected output for reloc
            descriptions.
            * ld-mips-elf/reloc-1-n64.d: Likewise.
            * ld-i386/ifunc.d: New test.
            * ld-i386/ifunc.s: Source file for the new test.
            * ld-i386/i386.exp: Run the new test.
2008-12-03 14:51:00 +00:00
Alan Modra 11a7ae4fa9 * elfcore.h (elf_core_file_p): Ensure we have a backend match
with the correct arch size before rejecting the generic fallback.
	* elfcode.h (elf_object_p): Likewise.  Ensure arch size matches
	before accepting a target.
2008-08-01 12:21:28 +00:00
Alan Modra 4fbb74a605 include/elf/
PR 5900
	* common.h (SHN_BAD): Delete.
	(SHN_LORESERVE .. SHN_HIRESERVE): Move to..
	* external.h: ..here.
	* internal.h (SHN_LORESERVE, SHN_HIRESERVE): Define.
	(SHN_LOPROC, SHN_HIPROC, SHN_LOOS, SHN_HIOS): Define.
	(SHN_ABS, SHN_COMMON, SHN_XINDEX, SHN_BAD): Define.
bfd/
	PR 5900
	* elf-bfd.h: Include elf/internal.h after elf/external.h.
	* elfcode.h (elf_swap_symbol_in): Map reserved shndx range.
	(elf_swap_symbol_out): Adjust SHN_XINDEX test.
	(elf_swap_ehdr_out): Mask SHN_LORESERVE and SHN_XINDEX to values
	seen in external structs.
	(valid_section_index_p): Delete.
	(elf_object_p): Don't increment section numbers over reserved range.
	Simplify test for valid sh_link, sh_info and e_shstrndx fields.
	(elf_write_shdrs_and_ehdr): Mask SHN_LORESERVE and SHN_XINDEX to values
	seen in external structs.  Don't increment section numbers over
	reserved range.
	* elf.c (bfd_elf_sym_name): Remove redundant tests on st_shndx.
	(bfd_section_from_shdr): Likewise.
	(group_signature): Range check before accessing elf_elfsections.
	(_bfd_elf_setup_sections): Likewise.
	(bfd_section_from_shdr): Likewise.
	(bfd_section_from_shdr): Don't increment section number over
	reserved sections.
	(assign_file_positions_for_non_load_sections): Likewise.
	(assign_file_positions_except_relocs): Likewise.
	(_bfd_elf_write_object_contents): Likewise.
	(assign_section_numbers): Likewise.  Adjust for changed SHN_*.
	(prep_headers): Delete unused variable.
	* elflink.c (bfd_elf_link_record_local_dynamic_symbol): Adjust
	for changed SHN_* values.
	(check_dynsym, elf_link_input_bfd): Likewise.
	(bfd_elf_final_link): Likewise.  Don't skip over reserved section
	range.
	(elf_fixup_link_order): Check that sh_link field is valid.
	* elf-hppa.h (elf_hppa_add_symbol_hook): Make "index" unsigned.
	* elf32-arm.c (elf32_arm_gc_mark_extra_sections): Range check before
	accesssing elf_elfsections.
	* elf32-avr.c (elf32_avr_size_stubs): Likewise.
	* elf32-hppa.c (elf32_hppa_size_stubs): Likewise.
	* elf32-m68hc1x.c (elf32_m68hc11_size_stubs): Likewise.
	* elf64-hppa.c (elf64_hppa_check_relocs): Adjust for changed
	SHN_* defines.  Test for SHN_BAD return from
	_bfd_elf_section_from_bfd_section
binutils/
	PR 5900
	* readelf.c (SECTION_HEADER_INDEX, SECTION_HEADER_NUM): Delete.
	Remove use throughout file.
	(SECTION_HEADER): Likewise.
	(dump_relocations): Don't adjust st_shndx for reserved range.
	(process_file_header): Mask SHN_XINDEX to values seen in external
	elf structs.  Simplify valid section index tests.
	(get_32bit_elf_symbols, get_64bit_elf_symbols): Mask SHN_XINDEX.
	Map reserved st_shndx to internal form.
	(process_section_groups): Test that group symbol st_shndx is in
	range, not just non-zero.  Delete reserved range check.
	(get_symbol_index_type): Mask "type" to 16 bits when printing PRC,
	OS or RSV.
gdb/
	PR 5900
	* elfread.c (elf_symtab_read): Make shndx an unsigned int.
	* mipsread.c: Include elf/internal.h.
	(read_alphacoff_dynamic_symtab): Map external reserved sym_shndx
	to internal range.
ld/testsuite/
	PR 5900
	* ld-elf/sec64k.exp: Update.
2008-03-12 08:37:09 +00:00
Alan Modra cb33740c88 * elf-bfd.h (_bfd_elf_section_from_bfd_section): Update prototype.
* elf.c (_bfd_elf_section_from_bfd_section): Return unsigned int,
	SHN_BAD on error.
	(_bfd_elf_print_private_bfd_data): Test for SHN_BAD result from
	_bfd_elf_section_from_bfd_section, not -1.
	(swap_out_syms): Likewise.
	* elflink.c (elf_link_add_object_symbols): Likewise.
	(bfd_elf_get_bfd_needed_list): Likewise.
	(bfd_elf_match_symbols_in_sections): Likewise.
	(elf_link_add_object_symbols): Don't bother testing for symbols
	using normal sections before calling bfd_section_from_elf_index.
	(elf_link_input_bfd, bfd_elf_final_link): Likewise.
	(bfd_elf_reloc_symbol_deleted_p): Likewise.
	* elfcode.h (elf_slurp_symbol_table): Likewise.
	* elf32-spu.c (get_sym_h): Likewise.
	* elf32-xtensa.c (get_elf_r_symndx_section): Likewise.
	* elf64-ppc.c (opd_entry_value, get_sym_h, ppc64_elf_edit_toc): Ditto.
	* elf64-sh64.c (sh_elf64_get_relocated_section_contents): Likewise.
2008-03-11 23:23:23 +00:00
H.J. Lu 147d51c232 2007-12-24 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/5449
	* elf.c (rewrite_elf_program_header): Don't adjust p_paddr if
	p_paddr is set to 0.
	(copy_private_bfd_data): Call rewrite_elf_program_header if
	p_paddr is set to 0.

	* elfcode.h (elf_swap_phdr_out): Set p_paddr to 0 if needed.

	* elfxx-ia64.c (ELF_MAXPAGESIZE): Don't redefine it for HPUX.
2007-12-24 16:55:39 +00:00
Nick Clifton 504b7d2026 Support the use of the STT_COMMON type. (In source and object files only at the moment) 2007-10-16 14:42:15 +00:00
Jan Kratochvil 3fec76aafa 2007-08-14 Jan Kratochvil <jan.kratochvil@redhat.com>
* elfcode.h (NAME(_bfd_elf,bfd_from_remote_memory)): LOADBASE is now
	initialized only on the first PT_LOAD.  New variable LOADBASE_SET.
	Removed PF_R checking for IA-64 vDSOs as redundant now.
	Code advisory: Roland McGrath
2007-08-14 08:04:47 +00:00
H.J. Lu f7231afc19 2007-08-04 H.J. Lu <hongjiu.lu@intel.com>
* elf-bfd.h (xvec_get_elf_backend_data): Add const.

	* elfcode.h (elf_object_p): Use xvec_get_elf_backend_data.
	* elfcore.h (elf_core_file_p): Likewise.
2007-08-04 16:31:00 +00:00
Roland McGrath d94838b102 2007-07-09 Roland McGrath <roland@redhat.com>
* elf-bfd.h (struct elf_size_info): Add checksum_contents hook.
	(bfd_elf32_checksum_contents, bfd_elf64_checksum_contents): Declare.
	* elfcode.h (elf_checksum_contents): New macro and function.
	(NAME(_bfd_elf,size_info)): Initialize checksum_contents hook.
2007-07-09 21:23:37 +00:00
Nick Clifton cd123cb70c Switch sources over to use the GPL version 3 2007-07-03 14:26:43 +00:00
Alan Modra 3db64b0092 bfd/
Many files: Include sysdep.h before bfd.h.
	* Makefile.am: Run "make dep-am".
	* Makefile.in: Regenerate.
binutils/
	* bucumm.h: Split off host dependencies to..
	* sysdep.h: ..here.
	Many files: Include sysdep.h.  Remove duplicate headers and reorder.
	* Makefile.am: Run "make dep-am".
	* Makefile.in: Regenerate.
ld/
	Many files: Include sysdep.h first.  Remove duplicate headers.
	* Makefile.am: Run "make dep-am".
	* Makefile.in: Regenerate.
opcodes/
	* Makefile.am: Run "make dep-am".
	* Makefile.in: Regenerate.
	* ns32k-dis.c: Include sysdep.h first.
2007-04-26 14:47:00 +00:00
H.J. Lu d1036acbe7 2007-03-13 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/3826
	* elf-bfd.h (elf_backend_data): Add elf_osabi.
	(_bfd_elf_set_osabi): New.

	* elf.c (_bfd_elf_set_osabi): New.

	* elf32-hppa.c (elf32_hppa_post_process_headers): Removed.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi.
	(ELF_OSABI): Properly defined for each target.

	* elf32-i370.c (i370_elf_post_process_headers): Removed.
	(ELF_OSABI): Defined.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi.

	* elf32-i386.c (ELF_OSABI): Defined to ELFOSABI_FREEBSD for
	freebsd.
	(elf_i386_post_process_headers): Set EI_OSABI with elf_osabi.

	* elf32-msp430.c (elf32_msp430_post_process_headers): Removed.
	(ELF_OSABI): Defined.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi.

	* elf64-alpha.c (ELF_OSABI): Defined to ELFOSABI_FREEBSD for
	freebsd.
	(elf64_alpha_fbsd_post_process_headers): Set EI_OSABI with
	elf_osabi.

	* elf64-hppa.c (elf64_hppa_post_process_headers): Set EI_OSABI
	with elf_osabi.
	(ELF_OSABI): Properly defined for each target.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi for Linux.

	* elf64-sparc.c (elf64_sparc_fbsd_post_process_headers): Removed.
	(ELF_OSABI): Defined to ELFOSABI_FREEBSD for freebsd.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi.

	* elf64-x86-64.c (elf64_x86_64_fbsd_post_process_headers): Removed.
	(ELF_OSABI): Defined to ELFOSABI_FREEBSD for freebsd.
	(elf_backend_post_process_headers): Defined with
	_bfd_elf_set_osabi.

	* elfcode.h (elf_object_p): Match the ELFOSABI_NONE ELF target
	with any ELF target of the compatible machine for which we do not
	have a specific backend.

	* elfxx-ia64.c (elfNN_hpux_post_process_headers): Set EI_OSABI
	with elf_osabi.

	* elfxx-target.h (ELF_OSABI): Default to ELFOSABI_NONE.
	(elfNN_bed): Initialize elf_osabi with ELF_OSABI.
2007-03-14 02:56:45 +00:00
Dave Brolley d93525185c Support for Toshiba MeP and for complex relocations. 2007-02-05 19:50:12 +00:00
Alan Modra 8384fb8f0c * elfcode.h (elf_swap_symbol_in): Return bfd_boolean. Don't abort
on error.
	* elf-bfd.h (elf_size_info <swap_symbol_in>): Adjust decl.
	(bfd_elf32_swap_symbol_in, bfd_elf64_swap_symbol_in): Likewise.
	* elf.c (bfd_elf_get_elf_syms): Test return of swap_symbol_in,
	and report error.
	* elf32-arm.c (elf32_arm_swap_symbol_in): Return bfd_boolean.
2006-09-22 13:16:45 +00:00