| Age | Commit message (Collapse) | Author | Files | Lines |
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HI16/LO16 are deliberately put adjacent, which might mean relocs are
then not sorted by r_offset. See tc-mips.c:mips_frob_file. Don't undo
the HI16/LO16 sorting.
PR 17666
* elf-bfd.h (struct elf_backend_data): Add sort_relocs_p.
* elfxx-target.h (elf_backend_sort_relocs_p): Define.
(elfNN_bed): Init new field.
* elflink.c (elf_link_adjust_relocs): Conditionally sort.
(bfd_elf_final_link): Control sorting of relocs.
* elfxx-mips.c (_bfd_mips_elf_sort_relocs_p): New function.
* elfxx-mips.h (_bfd_mips_elf_sort_relocs_p): Declare.
* elf32-mips.c (elf_backend_sort_relocs_p): Define.
* elf64-mips.c (elf_backend_sort_relocs_p): Define.
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PR binutils/17512
* objdump.c (display_any_bfd): Avoid infinite loop closing and
opening the same archive again and again.
* archive64.c (bfd_elf64_archive_slurp_armap): Add range checks.
* libbfd.c (safe_read_leb128): New function.
* libbfd-in.h (safe_read_leb128): Add prototype.
* libbfd.h: Regenerate.
* elf-attrs.c (_bfd_elf_parse_attributes): Use safe_read_leb128.
Check for an over-long subsection length.
* elf.c (elf_parse_notes): Check that the namedata is long enough
for the string comparison that is about to be performed.
(elf_read_notes): Zero-terminate the note buffer.
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Now that ld -r relocs are sorted by the pr17666 fix, there isn't so
much need to sort incoming relocs.
* elf64-ppc.c (sort_r_offset): Delete.
(ppc64_elf_edit_opd): Don't sort input relocs.
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bfd/
* config.bfd: Add Visium support.
* configure.ac: Likewise.
* configure: Regenerate.
* Makefile.am (ALL_MACHINES): Add cpu-visium.lo.
(ALL_MACHINES_CFILES): Add cpu-visium.c.
(BFD32_BACKENDS): Add elf32-visium.lo.
(BFD32_BACKENDS_CFILES): Add elf32-visium.c.
* Makefile.in: Regenerate.
* archures.c (DESCRIPTION): Add Visium support.
(bfd_visium_arch): Declare.
(bfd_archures_list): Add bfd_visium_arch.
* reloc.c: Add Visium relocations.
* targets.c (visium_elf32_vec): Declare.
(_bfd_target_vector): Add visium_elf32_vec.
* bfd-in2.h: Regenerate.
* libbfd.h: Likewise.
* cpu-visium.c: New file.
* elf32-visium.c: Likewise.
* po/SRC-POTFILES.in: Regenerate.
include/elf/
* common.h (EM_VISIUM): Define.
* visium.h: New file.
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* ecoff.c (_bfd_ecoff_slurp_symbol_table): Add cast.
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* elf64-x86-64.c (bfd_elf32_get_synthetic_symtab): New.
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In i386 and x86-64 binaries with ifunc, relocations against .got.plt
section may not be in the same order as entries in PLT section. This
patch adds _bfd_elf_ifunc_get_synthetic_symtab. It takes a function
pointer which returns an array of PLT entry symbol values. It calls
the function pointer to get the PLT entry symbol value array indexed
by relocation index, instead of calling plt_sym_val on each relocation
index.
PR binutils/17677
* elf-bfd.h (_bfd_elf_ifunc_get_synthetic_symtab): New prototype.
* elf-ifunc.c (_bfd_elf_ifunc_get_synthetic_symtab): New
function.
* elf32-i386.c (elf_i386_plt_sym_val): Removed.
(elf_backend_plt_sym_val): Likewise.
(elf_i386_get_plt_sym_val): New.
(elf_i386_get_synthetic_symtab): Likewise.
(bfd_elf32_get_synthetic_symtab): Likewise.
* elf64-x86-64.c (elf_x86_64_plt_sym_val): Removed.
(elf_x86_64_plt_sym_val_offset_plt_bnd): Likewise.
(elf_backend_plt_sym_val): Likewise.
(elf_x86_64_get_plt_sym_val): New.
(elf_x86_64_get_synthetic_symtab): Use
_bfd_elf_ifunc_get_synthetic_symtab.
(bfd_elf64_get_synthetic_symtab): Don't undefine for NaCl.
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bfd/
PR 17666
* elflink.c: Include bfd_stdint.h.
(cmp_ext32l_r_offset, cmp_ext32b_r_offset,
cmp_ext64l_r_offset, cmp_ext64b_r_offset): New functions.
(elf_link_adjust_relocs): Sort relocs. Free reloc hashes after
sorting invalidates.
ld/testsuite/
* ld-powerpc/vxworks-relax.rd: Update for reloc sorting.
* ld-powerpc/vxworks-relax-2.rd: Likewise.
* ld-sh/sh64/reldl32.rd: Likewise.
* ld-sh/sh64/reldl64.rd: Likewise.
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PR binutils/17512
* objdump.c (free_debug_section): Reset the compress_status as
well.
* compress.c (bfd_get_full_section_contents): Fail if there are no
section contents available when the compress_status is
COMPRESS_SECTION_DONE.
* libbfd.c (bfd_malloc): Refuse to allocate a negative size.
(bfd_malloc2): Use bfd_malloc.
(bfd_realloc): Refuse to reallocate a negative size.
(bfd_realloc2): Use bfd_realloc.
(bfd_realloc_or_free): Use bfd_realloc.
(bfd_zmalloc): Use bfd_malloc.
(bfd_zmalloc): Use bfd_malloc2.
* opncls.c (bfd_alloc): Refuse to allocate a negative size.
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* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Reformat.
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* elf64-x86-64.c (elf_x86_64_relocate_section): Check
info->executable for symbols which need copy relocs.
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This patch reverts the change in elf_x86_64_check_relocs and the partial
change in elf_x86_64_adjust_dynamic_symbol. Instead, we discard space
in PIE for relocs against symbols which turn out to need copy relocs.
* elf64-x86-64.c (elf_x86_64_check_relocs): Revert the last
change.
(elf_x86_64_adjust_dynamic_symbol): Don't check !info->shared
with ELIMINATE_COPY_RELOCS.
(elf_x86_64_allocate_dynrelocs): For PIE, discard space for
relocs against symbols which turn out to need copy relocs.
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This patch allows copy relocs for non-GOT pc-relative relocation in PIE.
bfd/
* elf64-x86-64.c (elf_x86_64_create_dynamic_sections): Always
allow copy relocs for building executables.
(elf_x86_64_check_relocs): Allow copy relocs for non-GOT
pc-relative relocation in shared object.
(elf_x86_64_adjust_dynamic_symbol): Allocate copy relocs for
PIE.
(elf_x86_64_relocate_section): Don't copy a pc-relative
relocation into the output file if the symbol needs copy reloc.
ld/testsuite/
* ld-x86-64/copyreloc-lib.c: New file.
* ld-x86-64/copyreloc-main.c: Likewise.
* ld-x86-64/copyreloc-main.out: Likewise.
* ld-x86-64/copyreloc-main1.rd: Likewise.
* ld-x86-64/copyreloc-main2.rd: Likewise.
* ld-x86-64/x86-64.exp: Run copyreloc tests.
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check for overflow.
In MIPS the relocation calculation only ignores the overflow checks for undefined
weak symbols on relocations associated with j/jal. This patch extends this to
the relocations used by the: b* instructions; pc/gp relative symbol offsets; and the
lwpc/ldpc MIPS r6 instructions.
bfd/
* elfxx-mips.c (mips_elf_calculate_relocation): Only check for overflow
on non-weak undefined symbols.
ld/testsuite/
* ld-mips-elf/mips-elf.exp: Add in undefined weak overflow tests for
o32, n32 and n64.
* ld-mips-elf/undefweak-overflow.s: New test.
* ld-mips-elf/undefweak-overflow.d: New test.
* ld-mips-elf/undefweak-overflow-n32.d: New test.
* ld-mips-elf/undefweak-overflow-n64.d: New test.
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This patch sorts .opd relocs (see pr17666) and allows .opd sections
with a mix of 16 and 24 byte entries to be edited.
* elf64-ppc.c (OPD_NDX): Define. Use throughout for sizing/indexing
_opd_sec_data array, halving required memory.
(sort_r_offset): New function.
(ppc64_elf_edit_opd): Sort incoming relocs. Accept .opd
sections with a mix of 16 and 24 byte OPD entries. Don't
attempt to honour --non-overlapping-opd for .opd sections with
unexpected relocs. Simplify opd entry size calculations by
first finding the reloc for the next entry. Make edit loop
handle one opd entry per iteration, with an inner loop
handling relocs per entry.
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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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PR 16452, 16457
* elflink.c (_bfd_elf_link_find_version_dependencies): Exclude
symbols from libraries that won't be listed in DT_NEEDED.
(elf_link_output_extsym): Don't output verdefs for such symbols.
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* elf.c (_bfd_elf_slurp_version_tables): Exit loops when vn_next/
vna_next/vd_next/vda_next is zero. Correct counts.
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PR binutils/17512
* ecoff.c (_bfd_ecoff_slurp_symbol_table): Warn about and correct
a discrepancy between the isymMax and ifdMax values in the
symbolic header.
* elf.c (_bfd_elf_print_private_bfd_data): Fix the range check
scanning the external dynamic entries.
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corrupted binaries.
PR binutils/17512
* dwarf.c (display_block): Do nothing if the block starts after
the end of the buffer.
(read_and_display_attr_value): Add range checks.
(struct Frame_Chunk): Make the ncols and ra fields unsigned.
(frame_need_space): Test for an ncols of zero.
(read_cie): Fail if the augmentation data extends off the end of
the buffer.
(display_debug_frames): Add checks for read_cie failing. Add
range checks.
* coff-h8300.c (rtype2howto): Replace abort with returning a NULL
value.
* coff-h8500.c (rtype2howto): Likewise.
* coff-tic30.c (rtype2howto): Likewise.
* coff-z80.c (rtype2howto): Likewise.
* coff-z8k.c (rtype2howto): Likewise.
* coff-ia64.c (RTYPE2HOWTO): Always return a valid howto.
* coff-m68k.c (m68k_rtype2howto): Return a NULL howto if none
could be found.
* coff-mcore.c (RTYPE2HOWTO): Add range checking.
* coff-w65.c (rtype2howto): Likewise.
* coff-we32k.c (RTYPE2HOWTO): Likewise.
* pe-mips.c (RTYPE2HOWTO): Likewise.
* coff-x86_64.c (coff_amd64_reloc): Likewise. Replace abort with
an error return.
* coffcode.h (coff_slurp_reloc_table): Allow the rel parameter to
be unused.
* coffgen.c (make_a_section_from_file): Check the length of a
section name before testing to see if it is a debug section name.
(coff_object_p): Zero out any uninitialised bytes in the opt
header.
* ecoff.c (_bfd_ecoff_slurp_symbolic_info): Test for the raw
source being empty when there are values to be processed.
(_bfd_ecoff_slurp_symbol_table): Add range check.
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Likewise.
(bfd_mach_o_mangle_sections): Move test for too many sections to
before the allocation of the section table.
(bfd_mach_o_read_symtab_strtab): If the read fails, free the
memory and nullify the symbol pointer.
* reloc.c (bfd_generic_get_relocated_section_contents): Add
handling of a bfd_reloc_notsupported return value.
* versados.c (EDATA): Add range checking.
(get_record): Likewise.
(process_otr): Check for contents being available before updating
them.
(versados_canonicalize_reloc): Add range check.
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The internal verref buffer is allocated with bfd_zalloc, based on a
count given in headers. If the headers are broken/fuzzed and contain
an enormous count the alloc can result in OOM. If we first read the
external verrefs (into a buffer that isn't zeroed on allocation) then
the read provides a sanity check on the headers.
Also prints an error for version info that fails other sanity checks.
* elf.c (_bfd_elf_slurp_version_tables): Delay allocation of
internal verref buffer. Error for zero sh_info. Print errors.
Check for zero vd_ndx. Use bfd_zalloc for vd_auxptr buffer.
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This patch adds get_symbol_version_string to BFD_JUMP_TABLE_SYMBOLS so
that we can use bfd_get_symbol_version_string in objdump for non-ELF
targets.
bfd/
* targets.c (BFD_JUMP_TABLE_SYMBOLS): Use
NAME##_get_symbol_version_string.
(bfd_get_symbol_version_string): New.
* aout-adobe.c (aout_32_get_symbol_version_string): Define using
_bfd_nosymbols define.
* aout-target.h (MY_get_symbol_version_string): Likewise.
* aout-tic30.c (MY_get_symbol_version_string): Likewise.
* binary.c (binary_get_symbol_version_string): Likewise.
* bout.c (aout_32_get_symbol_version_string): Likewise.
* coff-rs6000.c (_bfd_xcoff_get_symbol_version_string): Likewise.
* i386msdos.c (msdos_get_symbol_version_string): Likewise.
* i386os9k.c (aout_32_get_symbol_version_string): Likewise.
* ieee.c (ieee_get_symbol_version_string): Likewise.
* ihex.c (ihex_get_symbol_version_string): Likewise.
* libecoff.h (_bfd_ecoff_get_symbol_version_string): Likewise.
* mach-o-target.c (bfd_mach_o_get_symbol_version_string): Likewise.
* mmo.c (mmo_get_symbol_version_string): Likewise.
* nlm-target.h (nlm_get_symbol_version_string): Likewise.
* oasys.c (oasys_get_symbol_version_string): Likewise.
* pef.c (bfd_pef_get_symbol_version_string): Likewise.
* plugin.c (bfd_plugin_get_symbol_version_string): Likewise.
* ppcboot.c (ppcboot_get_symbol_version_string): Likewise.
* som.c (som_get_symbol_version_string): Likewise.
* srec.c (srec_get_symbol_version_string): Likewise.
* tekhex.c (tekhex_get_symbol_version_string): Likewise.
* versados.c (versados_get_symbol_version_string): Likewise.
* vms-alpha.c (alpha_vms_get_symbol_version_string): Likewise.
* xsym.c (bfd_sym_get_symbol_version_string): Likewise.
* coff64-rs6000.c (rs6000_xcoff64_vec): Use
coff_get_symbol_version_string.
(rs6000_xcoff64_aix_vec): Likewise.
* elf-bfd.h (bfd_elf_get_symbol_version_string): Renamed to ...
(_bfd_elf_get_symbol_version_string): This.
* elf.c: Likewise.
(bfd_elf_print_symbol): Updated.
* elfxx-target.h (bfd_elfNN_get_symbol_version_string): Define.
* libbfd-in.h (_bfd_nosymbols_get_symbol_version_string): Define.
* libcoff-in.h (coff_get_symbol_version_string): Likewise.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
* libcoff.h: Likewise.
binutils/
* objdump.c (objdump_print_symname): Replace
bfd_elf_get_symbol_version_string with
bfd_get_symbol_version_string.
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Both readelf/objdump know how to get symbol version string for dynamic
symbols. This patch extracts this functionality into a separate
function and uses it to add symbol version string to versioned symbol
names when dumping dynamic relocations.
bfd/
PR binutils/16496
* elf-bfd.h (bfd_elf_get_symbol_version_string): New.
* elf.c (bfd_elf_get_symbol_version_string): New. Extracted
from bfd_elf_print_symbol.
(bfd_elf_print_symbol): Use it.
binutils/
PR binutils/16496
* objdump.c (objdump_print_symname): Call
bfd_elf_get_symbol_version_string to get ELF symbol version
string. Append version string if needed.
* readelf.c (versioned_symbol_info): New enum.
(get_symbol_version_string): New. Extracted from
process_symbol_table.
(dump_relocations): Add a new argument to indicate if dynamic
symbol table is used. Use get_symbol_version_string to get
symbol version string for dynamic symbol. Append version string
if needed.
(process_relocs): Updated dump_relocations call.
(process_symbol_table): Use get_symbol_version_string.
ld/testsuite/
PR binutils/16496
* ld-cris/weakref3.d: Add symbol version string to versioned
symbol names in dynamic relocation.
* ld-cris/weakref4.d: Likewise.
* ld-elfvers/vers24.rd: Likewise.
* ld-elf/pr16496a.c: New file.
* ld-elf/pr16496a.map: Likewise.
* ld-elf/pr16496b.c: Likewise.
* ld-elf/pr16496b.od: Likewise.
* ld-elf/shared.exp (build_tests): Add libpr16496a.so and
libpr16496b.so tests.
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When there are both PLT and GOT references to the same function symbol,
linker will create a GOTPLT slot for PLT entry and a GOT slot for GOT
reference. A run-time JUMP_SLOT relocation is created to update the
GOTPLT slot and a run-time GLOB_DAT relocation is created to update the
GOT slot. Both JUMP_SLOT and GLOB_DAT relocations will apply the same
symbol value to GOTPLT and GOT slots, respectively, at run-time.
This optimization combines GOTPLT and GOT slots into a single GOT slot
and removes the run-time JUMP_SLOT relocation. It replaces the regular
PLT entry:
indirect jump [GOTPLT slot]
push relocation index
jump PLT0
with an GOT PLT entry with an indirect jump via the GOT slot:
indirect jump [GOT slot]
nop
and resolves PLT reference to the GOT PLT entry.
We must avoid this optimization if pointer equality is needed since
we don't clear symbol value in this case and the dynamic linker won't
update the GOT slot. Otherwise, the resulting binary will get into an
infinite loop at run-time.
bfd/
* elf32-i386.c (elf_i386_got_plt_entry): New.
(elf_i386_pic_got_plt_entry): Likewise.
(elf_i386_link_hash_entry): Add plt_got.
(elf_i386_link_hash_table): Likewise.
(elf_i386_link_hash_newfunc): Initialize plt_got.offset to -1.
(elf_i386_get_local_sym_hash): Likewise.
(elf_i386_check_relocs): Create the GOT PLT if there are both
PLT and GOT references when the regular PLT is used.
(elf_i386_allocate_dynrelocs): Use the GOT PLT if there are
both PLT and GOT references unless pointer equality is needed.
(elf_i386_relocate_section): Also check the GOT PLT when
resolving R_386_PLT32.
(elf_i386_finish_dynamic_symbol): Use the GOT PLT if it is
available.
* elf64-x86-64.c (elf_x86_64_link_hash_entry): Add plt_got.
(elf_x86_64_link_hash_table): Likewise.
(elf_x86_64_link_hash_newfunc): Initialize plt_got.offset to -1.
(elf_x86_64_get_local_sym_hash): Likewise.
(elf_x86_64_check_relocs): Create the GOT PLT if there are both
PLT and GOT references when the regular PLT is used.
(elf_x86_64_allocate_dynrelocs): Use the GOT PLT if there are
both PLT and GOT references unless pointer equality is needed.
(elf_x86_64_relocate_section): Also check the GOT PLT when
resolving R_X86_64_PLT32.
(elf_x86_64_finish_dynamic_symbol): Use the GOT PLT if it is
available.
ld/
* emulparams/elf_i386.sh (TINY_READONLY_SECTION): New.
* emulparams/elf_x86_64.sh (TINY_READONLY_SECTION): Add .plt.got.
ld/testsuite/
* ld-i386/i386.exp: Add run-time relocation tests for plt-main.
* ld-i386/plt-main.rd: New file.
* ld-x86-64/plt-main-bnd.dd: Likewise.
* ld-x86-64/plt-main.rd: Likewise.
* ld-x86-64/x86-64.exp: Add run-time relocation tests for
plt-main.
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* libtool.m4: Updated from GCC trunk.
bfd/
* configure: Regenerated.
binutils/
* configure: Regenerated.
gas/
* configure: Regenerated.
gprof/
* configure: Regenerated.
ld/
* configure: Regenerated.
opcodes/
* configure: Regenerated.
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2014-11-24 Tejas Belagod <tejas.belagod@arm.com>
bfd/
* elfnn-aarch64.c (elf_aarch64_compare_mapping): New.
(erratum_835769_scan): Sort map list.
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Alignment of plt stubs was broken, firstly because the option was
being dropped due to the alignment value not being set in the "params"
struct used in elf64-ppc.c, and secondly due to not calculating the
number of alignment boundary crossings correctly.
bfd/
* elf64-ppc.c (plt_stub_pad): Correct.
ld/
* ld.texinfo: Correct --plt-align documentation.
* emultempl/ppc64elf.em (plt_stub_align): Delete. Use and set
params.plt_stub_align instead.
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Assert size of elf_x86_64_bnd_plt2_entry and elf_x86_64_legacy_plt2_entry
only in elf_x86_64_check_relocs.
* elf64-x86-64.c (elf_x86_64_check_relocs): Assert size of
elf_x86_64_bnd_plt2_entry and elf_x86_64_legacy_plt2_entry.
(elf_x86_64_allocate_dynrelocs): Don't assert size of
elf_x86_64_bnd_plt2_entry and elf_x86_64_legacy_plt2_entry.
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Displacement of branch to PLT0 in x86-64 PLT entry is signed 32-bit.
This patch adds a sanity check. We will only see the failure when PLT
size is > 2GB.
* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Check
branch displacement overflow in PLT entry.
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PR binutils/17512
* dwarf.c (get_encoded_value): Check for an encoded size of 0.
(display_debug_lines_raw): Check for an invalid line range value.
(display_debug_frames): Check for corrupt augmentation data.
* coffgen.c (coff_get_normalized_symtab): Check for an excessive
number of auxillary entries.
* ieee.c (next_byte): Convert to a function. Return FALSE if the
next byte is beyond the end of the buffer.
(parse_int): Test the return value of next_byte.
(parse_expression): Convert to boolean. Return FALSE if the
parsing failed. Test the return value of next_byte.
(ieee_seek): Convert to a function. Return FALSE if the seek goes
beyond the end of the buffer.
(ieee_slurp_external_symbols): Test the return value of ieee_seek
and next_byte.
(ieee_slurp_sections): Convert to boolean. Return FALSE if the
operation failed. Test the return value of ieee_seek and
next_byte.
(ieee_archive_p): Test the return value of ieee_seek and
next_byte.
(do_one): Likewise.
(ieee_slurp_section_data): Likewise.
(ieee_object_p): Likewise. Store the size of the buffer in the
total_amt field in the header.
* libieee.h (common_header_type): Add amt field.
* mach-o.c (bfd_mach_o_canonicalize_one_reloc): Check that the
reloc's value is within range.
(bfd_mach_o_read_symtab_symbols): Nullify the symbols field if the
operation fails.
* pei-x86_64.c (pex64_xdata_print_uwd_codes): Replace abort with
an error message.
(pex64_dump_xdata): Check for buffer overflows.
* versados.c (process_otr): Check that the section exists before
taking its size.
(versados_object_p): Make sure that enough data was read for the
header to be checked.
* vms-alpha.c (vms_get_remaining_object_record): Change
read_so_far parameter to an unsigned int. Check that the amount
read is in range.
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* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Optimize
PC-relative offset overflow check.
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