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The BFD configure option, --enable-elf-stt-common, can't be to used to
verify STT_COMMON implementation with the normal binutils build. Instead,
this patch removes it from BFD. It adds --elf-stt-common=[no|yes] to ELF
assembler/objcopy and adds -z common/-z nocommon to ld.
A configure option, --enable-elf-stt-common, is added to gas to specify
whether ELF assembler should generate common symbols with the STT_COMMON
type by default.
Since BSF_KEEP_G is never used, it is renamed to BSF_ELF_COMMON for ELF
common symbols.
bfd/
PR ld/19645
* bfd.c (bfd): Change flags to 20 bits.
(BFD_CONVERT_ELF_COMMON): New.
(BFD_USE_ELF_STT_COMMON): Likewise.
(BFD_FLAGS_SAVED): Add BFD_CONVERT_ELF_COMMON and
BFD_USE_ELF_STT_COMMON.
(BFD_FLAGS_FOR_BFD_USE_MASK): Likewise.
* configure.ac: Remove --enable-elf-stt-common.
* elf.c (swap_out_syms): Choose STT_COMMON or STT_OBJECT for
common symbol depending on BFD_CONVERT_ELF_COMMON and
BFD_USE_ELF_STT_COMMON.
* elfcode.h (elf_slurp_symbol_table): Set BSF_ELF_COMMON for
STT_COMMON.
* elflink.c (bfd_elf_link_mark_dynamic_symbol): Also check
STT_COMMON.
(elf_link_convert_common_type): New function.
(elf_link_output_extsym): Choose STT_COMMON or STT_OBJECT for
common symbol depending on BFD_CONVERT_ELF_COMMON and
BFD_USE_ELF_STT_COMMON. Set sym.st_info after sym.st_shndx.
* elfxx-target.h (TARGET_BIG_SYM): Add BFD_CONVERT_ELF_COMMON
and BFD_USE_ELF_STT_COMMON to object_flags.
(TARGET_LITTLE_SYM): Likewise.
* syms.c (BSF_KEEP_G): Renamed to ...
(BSF_ELF_COMMON): This.
* bfd-in2.h: Regenerated.
* config.in: Likewise.
* configure: Likewise.
binutils/
PR ld/19645
* NEWS: Mention --elf-stt-common= for objcopy.
* doc/binutils.texi: Document --elf-stt-common= for objcopy.
* objcopy.c (do_elf_stt_common): New.
(command_line_switch): Add OPTION_ELF_STT_COMMON.
(copy_options): Add --elf-stt-common=.
(copy_usage): Add --elf-stt-common=.
(copy_object): Also check do_elf_stt_common for ELF targets.
(copy_file): Handle do_elf_stt_common.
(copy_main): Handle OPTION_ELF_STT_COMMON.
* readelf.c (apply_relocations): Support STT_COMMON.
* testsuite/binutils-all/common-1.s: New file.
* testsuite/binutils-all/common-1a.d: Likewise.
* testsuite/binutils-all/common-1b.d: Likewise.
* testsuite/binutils-all/common-1c.d: Likewise.
* testsuite/binutils-all/common-1d.d: Likewise.
* testsuite/binutils-all/common-1e.d: Likewise.
* testsuite/binutils-all/common-1f.d: Likewise.
* testsuite/binutils-all/common-2.s: Likewise.
* testsuite/binutils-all/common-2a.d: Likewise.
* testsuite/binutils-all/common-2b.d: Likewise.
* testsuite/binutils-all/common-2c.d: Likewise.
* testsuite/binutils-all/common-2d.d: Likewise.
* testsuite/binutils-all/common-2e.d: Likewise.
* testsuite/binutils-all/common-2f.d: Likewise.
* testsuite/binutils-all/objcopy.exp
(objcopy_test_elf_common_symbols): New proc.
Run objcopy_test_elf_common_symbols for ELF targets
gas/
PR ld/19645
* NEWS: Mention --enable-elf-stt-common and --elf-stt-common=
for ELF assemblers.
* as.c (flag_use_elf_stt_common): New.
(show_usage): Add --elf-stt-common=.
(option_values): Add OPTION_ELF_STT_COMMON.
(std_longopts): Add --elf-stt-common=.
(parse_args): Handle --elf-stt-common=.
* as.h (flag_use_elf_stt_common): New.
* config.in: Regenerated.
* configure: Likewise.
* configure.ac: Add --enable-elf-stt-common and define
DEFAULT_GENERATE_ELF_STT_COMMON.
* gas/write.c (write_object_file): Set BFD_CONVERT_ELF_COMMON
and BFD_USE_ELF_STT_COMMON if flag_use_elf_stt_common is set.
* doc/as.texinfo: Document --elf-stt-common=.
* testsuite/gas/elf/common3.s: New file.
* testsuite/gas/elf/common3a.d: Likewise.
* testsuite/gas/elf/common3b.d: Likewise.
* testsuite/gas/elf/common4.s: Likewise.
* testsuite/gas/elf/common4a.d: Likewise.
* testsuite/gas/elf/common4b.d: Likewise.
* testsuite/gas/i386/dw2-compress-3b.d: Likewise.
* testsuite/gas/i386/dw2-compressed-3b.d: Likewise.
* testsuite/gas/elf/elf.exp: Run common3a, common3b, common4a
and common4b.
* testsuite/gas/i386/dw2-compress-3.d: Renamed to ...
* testsuite/gas/i386/dw2-compress-3a.d: This. Pass
--elf-stt-common=no to as.
* testsuite/gas/i386/dw2-compressed-3.d: Renamed to ...
* testsuite/gas/i386/dw2-compressed-3a.d: This. Pass
--elf-stt-common=no to as.
* testsuite/gas/i386/i386.exp: Run dw2-compress-3a,
dw2-compress-3b, dw2-compressed-3a and dw2-compressed-3b instead
of dw2-compress-3 and dw2-compressed-3.
include/
PR ld/19645
* bfdlink.h (bfd_link_elf_stt_common): New enum.
(bfd_link_info): Add elf_stt_common.
ld/
PR ld/19645
* NEWS: Mention -z common/-z nocommon for ELF targets.
* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Handle
-z common and -z nocommon.
* ld.texinfo: Document -z common/-z nocommon.
* lexsup.c (elf_shlib_list_options): Add -z common/-z nocommon.
* testsuite/ld-elf/tls_common.exp: Test --elf-stt-common=no and
--elf-stt-common=yes with assembler.
* testsuite/ld-elfcomm/common-1.s: New file.
* testsuite/ld-elfcomm/common-1a.d: Likewise.
* testsuite/ld-elfcomm/common-1b.d: Likewise.
* testsuite/ld-elfcomm/common-1c.d: Likewise.
* testsuite/ld-elfcomm/common-1d.d: Likewise.
* testsuite/ld-elfcomm/common-1e.d: Likewise.
* testsuite/ld-elfcomm/common-1f.d: Likewise.
* testsuite/ld-elfcomm/common-2.s: Likewise.
* testsuite/ld-elfcomm/common-2a.d: Likewise.
* testsuite/ld-elfcomm/common-2b.d: Likewise.
* testsuite/ld-elfcomm/common-2c.d: Likewise.
* testsuite/ld-elfcomm/common-2d.d: Likewise.
* testsuite/ld-elfcomm/common-2e.d: Likewise.
* testsuite/ld-elfcomm/common-2f.d: Likewise.
* testsuite/ld-elfcomm/common-3a.rd: Likewise.
* testsuite/ld-elfcomm/common-3b.rd: Likewise.
* testsuite/ld-i386/pr19645.d: Likewise.
* testsuite/ld-i386/pr19645.s: Likewise.
* testsuite/ld-x86-64/largecomm-1.s: Likewise.
* testsuite/ld-x86-64/largecomm-1a.d: Likewise.
* testsuite/ld-x86-64/largecomm-1b.d: Likewise.
* testsuite/ld-x86-64/largecomm-1c.d: Likewise.
* testsuite/ld-x86-64/largecomm-1d.d: Likewise.
* testsuite/ld-x86-64/largecomm-1e.d: Likewise.
* testsuite/ld-x86-64/largecomm-1f.d: Likewise.
* testsuite/ld-x86-64/pr19645.d: Likewise.
* testsuite/ld-x86-64/pr19645.s: Likewise.
* testsuite/ld-elfcomm/elfcomm.exp: Test --elf-stt-common=yes
with assembler.
(assembler_generates_commons): Removed.
Run -z common/-z nocommon tests. Run *.d tests.
* testsuite/ld-i386/i386.exp: Run pr19645.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-x86-64/dwarfreloc.exp: Test --elf-stt-common with
assembler. Test STT_COMMON with readelf.
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On 32-bit targets, memory requested for program/section headers on a
fuzzed binary can wrap to 0. A bfd_alloc of zero bytes actually
returns a one byte allocation rather than a NULL pointer. This then
leads to buffer overflows.
Making this check unconditional triggers an extremely annoying gcc-5
warning.
PR19323
* elfcode.h (elf_object_p): Check for ridiculous e_shnum and
e_phnum values.
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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.
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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.
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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.
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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.
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since
5979d6b69b20a8355ea94b75fad97415fce4788c
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 5e43d46791c4c66fd83947a12d4f716b561a9103) 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.
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* 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.
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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.
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* 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.
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* 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.
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* 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.
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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.
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* elf.c (assign_section_numbers): Check if number of sections
>= SHN_LORESERVE.
* elfcode.h (elf_object_p): Likewise.
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* 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.
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* 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.
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and bfd_ind_section with their _ptr variants, or use corresponding
bfd_is_* macros.
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type.
Revert change to compress.c
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* 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.
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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.
|
|
2011-06-04 H.J. Lu <hongjiu.lu@intel.com>
PR ld/12842
* elfcode.h (elf_object_p): Revert the last change.
|
|
return the other arch.
* elfcode.h (elf_object_p): Allow explicit match to generic ELF
target.
|
|
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.
|
|
* 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.
|
|
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.
|
|
* 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.
|
|
* 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.
|
|
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.
|
|
* 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.
|
|
(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.
|
|
* 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.
|
|
* 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.
|
|
* 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.
|
|
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.
|
|
2009-04-30 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.
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* 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.
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with the correct arch size before rejecting the generic fallback.
* elfcode.h (elf_object_p): Likewise. Ensure arch size matches
before accepting a target.
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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.
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* 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.
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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.
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the moment)
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* 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
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* 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.
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* 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.
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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.
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