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2014-12-02[MIPS] When calculating a relocation using an undefined weak symbol don't ↵Andrew Bennett2-11/+27
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.
2014-12-02ppc64_elf_edit_opd revampAlan Modra2-128/+163
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.
2014-12-02Automatic date update in version.inGDB Administrator1-1/+1
2014-12-01More fixes for memory access violations exposed by fuzzed binaries.Nick Clifton8-18/+97
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.
2014-12-01Automatic date update in version.inGDB Administrator1-1/+1
2014-11-30Don't output symbol version definitions for non-DT_NEEDED libsAlan Modra2-2/+13
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.
2014-11-30Automatic date update in version.inGDB Administrator1-1/+1
2014-11-29Automatic date update in version.inGDB Administrator1-1/+1
2014-11-28Sanity checks on version sectionAlan Modra2-12/+30
* elf.c (_bfd_elf_slurp_version_tables): Exit loops when vn_next/ vna_next/vd_next/vda_next is zero. Correct counts.
2014-11-28Automatic date update in version.inGDB Administrator1-1/+1
2014-11-27Fixes a few more memory access violations exposed by fuzzed binaries.Nick Clifton3-1/+27
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.
2014-11-27Automatic date update in version.inGDB Administrator1-1/+1
2014-11-26More fixes for memory access errors triggered by attemps to examine ↵Nick Clifton19-55/+169
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.
2014-11-26_bfd_elf_slurp_version_tables tidyAlan Modra2-43/+52
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.
2014-11-26Automatic date update in version.inGDB Administrator1-1/+1
2014-11-25Use get_symbol_version_string in BFD_JUMP_TABLE_SYMBOLSH.J. Lu35-6/+116
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.
2014-11-25Display symbol version when dumping dynrelocsH.J. Lu3-38/+64
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.
2014-11-25Optimize out i386/x86-64 JUMP_SLOT relocationH.J. Lu3-68/+423
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.
2014-11-25Automatic date update in version.inGDB Administrator1-1/+1
2014-11-24Update libtool.m4 from GCC trunkH.J. Lu2-2/+6
* libtool.m4: Updated from GCC trunk. bfd/ * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gprof/ * configure: Regenerated. ld/ * configure: Regenerated. opcodes/ * configure: Regenerated.
2014-11-24[AArch64] Cortex-A53 Erratum 835769 -- sort mapsJiong Wang2-0/+32
2014-11-24 Tejas Belagod <tejas.belagod@arm.com> bfd/ * elfnn-aarch64.c (elf_aarch64_compare_mapping): New. (erratum_835769_scan): Sort map list.
2014-11-24PowerPC64 --plt-alignAlan Modra2-1/+5
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.
2014-11-24Automatic date update in version.inGDB Administrator1-1/+1
2014-11-23Assert size of elf_x86_64_{bnd|legacy}_plt2_entryH.J. Lu2-16/+12
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.
2014-11-23Automatic date update in version.inGDB Administrator1-1/+1
2014-11-22Check branch displacement overflow in x86-64 PLT entryH.J. Lu2-2/+15
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.
2014-11-22Automatic date update in version.inGDB Administrator1-1/+1
2014-11-21Fixes for memory access violations exposed by fuzzinf various binaries.Nick Clifton8-111/+302
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.
2014-11-21Optimize PC-relative offset overflow checkH.J. Lu2-6/+7
* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Optimize PC-relative offset overflow check.
2014-11-21Fix a snafu setting up the string table read in from a COFF file.Alexander Cherepanov2-3/+9
PR binutils/17512 * coffgen.c (_bfd_coff_read_string_table): Test allocation of string table before clearing the first few bytes.
2014-11-21Support ARM Cortex-M7Terry Guo2-2/+7
include/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * opcode/arm.h (FPU_VFP_EXT_ARMV8xD): New macro. (FPU_VFP_V5D16): Likewise. (FPU_VFP_V5_SP_D16): Likewise. (FPU_ARCH_VFP_V5D16): Likewise. (FPU_ARCH_VFP_V5_SP_D16): Likewise. bfd/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * elf32-arm.c (elf32_arm_merge_eabi_attributes): Support FPv5. binutils/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * readelf.c (arm_attr_tag_FP_arch): Extended to support FPv5. gas/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * config/tc-arm.c (fpu_vfp_ext_armv8xd): New. (arm_cpus): Support cortex-m7. (arm_fpus): Support fpv5-sp-d16 and fpv5-d16. (do_vfp_nsyn_cvt_fpv8): Generate error when use D register for S register only target like FPv5-SP-D16. (do_neon_cvttb_1): Likewise. (do_vfp_nsyn_fpv8): Likewise. (do_vrint_1): Likewise. (aeabi_set_public_attributes): Set proper FP arch for FPv5. * doc/c-arm.texi: Document new cpu and fpu names for cortex-m7. gas/testsuite/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * gas/arm/armv7e-m+fpv5-d16.s: New. * gas/arm/armv7e-m+fpv5-d16.d: Likewise. * gas/arm/armv7e-m+fpv5-sp-d16.s: Likewise. * gas/arm/armv7e-m+fpv5-sp-d16.d: Likewise. ld/testsuite/ChangeLog: 2014-11-21 Terry Guo <terry.guo@arm.com> * ld-arm/attr-merge-vfp-4-sp.s: New test source file. * ld-arm/attr-merge-vfp-5-sp.s: Likewise. * ld-arm/attr-merge-vfp-5.s: Likewise. * ld-arm/attr-merge-vfp-8.d: New test. * ld-arm/attr-merge-vfp-8r.d: Likewise. * ld-arm/attr-merge-vfp-9.d: Likewise. * ld-arm/attr-merge-vfp-9r.d: Likewise. * ld-arm/attr-merge-vfp-10.d: Likewise. * ld-arm/attr-merge-vfp-10r.d: Likewise. * ld-arm/attr-merge-vfp-11.d: Likewise. * ld-arm/attr-merge-vfp-11r.d: Likewise. * ld-arm/attr-merge-vfp-12.d: Likewise. * ld-arm/attr-merge-vfp-12r.d: Likewise. * ld-arm/attr-merge-vfp-13.d: Likewise. * ld-arm/attr-merge-vfp-13r.d: Likewise. * ld-arm/attr-merge-vfp-14.d: Likewise. * ld-arm/attr-merge-vfp-14r.d: Likewise. * ld-arm/arm-elf.exp: Run the new tests.
2014-11-21Automatic date update in version.inGDB Administrator1-1/+1
2014-11-20PPC gold doesn't check for overflow properlyAlan Modra2-1/+6
Corrects overflow test for rel14, addr14, rel24, addr24 branch relocs, and prints an information message to give a hint as to how a branch that can't reach a stub might be cured. bfd/ * elf64-ppc.c (group_sections): Init stub14_group_size from --stub-group-size parameter divided by 1024. gold/ * powerpc.cc (Stub_control::Stub_control): Init stub14_group_size_ from --stub-group-size parameter divided by 1024. (Powerpc_relocate_functions::rela, rela_ua): Add fieldsize template parameter. Update all uses. (Target_powerpc::Relocate::relocate): Rename has_plt_value to has_stub_value. Set for long branches. Don't report overflow for branch to undefined weak symbols. Print info message on overflowing branch to stub.
2014-11-20ppc476 workaround sizingAlan Modra2-1/+6
* elf32-ppc.c (ppc_elf_relax_section): Correct ppc476 workaround alignment calculation.
2014-11-20Enable to link ARM object file that hasn't attribute section.Terry Guo2-0/+12
bfd/ChangeLog 2014-11-20 Terry Guo <terry.guo@arm.com> * elf32-arm.c (elf32_arm_merge_eabi_attributes): Skip if input bfd hasn't attribute section. ld/testsuite/ChangeLog: 2014-11-20 Terry Guo <terry.guo@arm.com> * ld-arm/attr-merge-nosection-1.d: New file. * ld-arm/attr-merge-nosection-1a.s: Likewise. * ld-arm/attr-merge-nosection-1b.s: Likewise. * ld-arm/arm-elf.exp: Include the new test.
2014-11-20Automatic date update in version.inGDB Administrator1-1/+1
2014-11-20Default powerpc64 to --plt-thread-safe for GoAlan Modra2-0/+6
Go is multi-threaded, so use thread-safe plt stubs. __go_go doesn't actually start threads, but is a convenient libgo function with a reasonably unique name that is called by all Go executables. (Threads are started by a static function of libgo, runtime_newosproc, called by a whole lot of global functions, including runtime_starttheworld and runtime_main.) bfd/ * elf64-ppc.c (ppc64_elf_size_stubs): Add __go_go to thread_starters. gold/ * powerpc.cc (Target_powerpc::do_relax): Add __go_go to thread_starters.
2014-11-19Automatic date update in version.inGDB Administrator1-1/+1
2014-11-18Check PC-relative offset overflow in PLT entryH.J. Lu2-8/+25
This patch checks PC-relative offset overflow in pushq instruction in x86-64 PLT entry. bfd/ PR ld/17618 * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Check PC-relative offset overflow in PLT entry. ld/testsuite/ PR ld/17618 * ld-x86-64/x86-64.exp: Run pr17618 for Linux target. * ld-x86-64/pr17618.d: New file. * ld-x86-64/pr17618.s: Likewise.
2014-11-18More fixes for illegal memory accesses exposed by fuzzed binaries.Nick Clifton3-1/+25
PR binutils/17512 * peXXIgen.c (pe_print_pdata): Fail if the section's virtual size is larger than its real size. (rsrc_print_section): Fix off-by-one error checking for overflow. * pei-x86_64.c (pex64_bfd_print_pdata): Handle empty unwind sections. * dwarf.c (get_encoded_value): Warn and return if the encoded value is more than 64-bits long. (SAFE_BYTE_GET): Do not attempt to read more than 64-bits. (process_extended_line_op): Add more range checks. (decode_location_expression): Use the return value from display_block. Add more range checks. (read_debug_line_header): Add range check. (display_debug_lines_raw): Add range checks. (display_debug_frames): Silently skip multiple zero terminators. Add range checks. (process_cu_tu_index): Check for non-existant or empty sections. Use SAFE_BYTE_GET instead of byte_get.
2014-11-18Add -z bndplt to generate BND prefix in PLT entriesIgor Zamyatin2-6/+12
This patch adds "-z bndplt" option Linux/x86-64 linker to generate BND prefix in PLT entries. It also updated Linux/x86-64 assembler not to generate R_X86_64_PLT32_BND nor R_X86_64_PC32_BND relocations. bfd/ 2014-11-18 Igor Zamyatin <igor.zamyatin@intel.com> * elf64-x86-64.c (elf_x86_64_check_relocs): Enable MPX PLT only for -z bndplt. gas/ 2014-11-18 Igor Zamyatin <igor.zamyatin@intel.com> * config/tc-i386-intel.c (i386_operator): Remove last argument from lex_got call. * config/tc-i386.c (reloc): Remove bnd_prefix from parameters' list. Return always BFD_RELOC_32_PCREL. * (output_branch): Remove condition for BFD_RELOC_X86_64_PC32_BND. * (output_jump): Update call to reloc accordingly. * (output_interseg_jump): Likewise. * (output_disp): Likewise. * (output_imm): Likewise. * (x86_cons_fix_new): Likewise. * (lex_got): Remove bnd_prefix from parameters' list in macro and declarations. Don't use BFD_RELOC_X86_64_PLT32_BND. * (x86_cons): Update call to lex_got accordingly. * (i386_immediate): Likewise. * (i386_displacement): Likewise. * (md_apply_fix): Don't use BFD_RELOC_X86_64_PLT32_BND nor BFD_RELOC_X86_64_PC32_BND. * (tc_gen_reloc): Likewise. include/ 2014-11-18 Igor Zamyatin <igor.zamyatin@intel.com> * bfdlink.h (struct bfd_link_info): Add bndplt. ld/ 2014-11-18 Igor Zamyatin <igor.zamyatin@intel.com> * emulparams/elf_x86_64.sh (BNDPLT): Set to yes for x86_64. * emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Handle "-z bndplt" if BNDPLT is yes. (gld${EMULATION_NAME}_list_options): Add "-z bndplt" entry. * ld.texinfo: Add description for bndplt. ld/testsuite/ 2014-11-18 Igor Zamyatin <igor.zamyatin@intel.com> * testsuite/ld-x86-64/bnd-ifunc-1.d: Add bndplt option. * testsuite/ld-x86-64/bnd-ifunc-2.d: Likewise. * testsuite/ld-x86-64/bnd-plt-1.d: Likewise. Update dissassembly sections. * testsuite/ld-x86-64/mpx.exp: Handle mpx3 and mpx4 tests. * testsuite/ld-x86-64/mpx1a.rd: Remove _BND from relocation name. * testsuite/ld-x86-64/mpx1c.rd: Likewise. * testsuite/ld-x86-64/mpx2a.rd: Likewise. * testsuite/ld-x86-64/mpx2c.rd: Likewise. * testsuite/ld-x86-64/mpx3.dd: New file. * testsuite/ld-x86-64/mpx3a.s: Likewise. * testsuite/ld-x86-64/mpx3b.s: Likewise. * testsuite/ld-x86-64/mpx4.dd: Likewise. * testsuite/ld-x86-64/mpx4a.s: Likewise. * testsuite/ld-x86-64/mpx4b.s: Likewise.
2014-11-18daily updateAlan Modra1-1/+1
2014-11-17daily updateAlan Modra1-1/+1
2014-11-14Fix a null pointer dereference when reading the debug link info from a ↵Nick Clifton2-5/+17
corrupt file. PR binutils/17597 * opncls.c (bfd_get_debug_link_info): Avoid reading off the end of the section. (bfd_get_alt_debug_link_info): Likewise.
2014-11-14More fixes for invalid memory accesses triggered by corrupt binaries.Nick Clifton2-2/+11
PR binutils/17512 * dwarf.c (get_encoded_value): Add an 'end' parameter. Change the 'data' parameter to a double pointer and return the updated value. (decode_location_expression): Update call to get_encoded_value. (frame_need_space): Handle the case where one or both of the mallocs fails. (read_cie): Initialise the cie pointer, even if the read fails. (display_debug_frames): Warn if the calculated block_end is before the start of the block. Break the loop if the CIE could not be read. Update call to get_encoded_value. Warn if the read CFA expressions are too big. * ieee.c (ieee_archive_p) Skip processing if no bytes are read at all. (ieee_object_p): Likewise.
2014-11-13Add cast to unsigned intH.J. Lu2-1/+5
* coffcode.h (coff_slurp_line_table): Add cast to unsigned int.
2014-11-13Rename symbbol to symbolH.J. Lu2-1/+5
* coffcode.h (coff_pointerize_aux_hook): Fix a typo.
2014-11-13Add assembler support for @gotpltH.J. Lu2-16/+8
Obsolete R_X86_64_GOTPLT64 and treat it the same as R_X86_64_GOT64. bfd/ PR gas/17598 * elf64-x86-64.c (elf_x86_64_check_relocs): Treat R_X86_64_GOTPLT64 the same as R_X86_64_GOT64. (elf_x86_64_relocate_section): Likewise. gas/ PR gas/17598 * config/tc-i386.c (reloc): Support BFD_RELOC_X86_64_GOTPLT64. gas/testsuite/ PR gas/17598 * gas/i386/reloc64.s: Add @gotplt check. * gas/i386/reloc64.d: Updated. * gas/i386/reloc64.l: Likewise. ld/testsuite/ PR gas/17598 * ld-x86-64/x86-64.exp: Run gotplt1. * ld-x86-64/gotplt1.d: New file. * ld-x86-64/gotplt1.s: Likewise.
2014-11-13More fixes for memory access violations whilst scanning corrupt binaries.Nick Clifton6-31/+134
PR binutils/17512 * config/obj-coff.c (coff_obj_symbol_new_hook): Set the is_sym field. * coffcode.h (coff_ptr_struct): Add is_sym field. (coff_new_section_hook): Set the is_sym field. (coff_pointerize_aux_hook): Check the is_sym field. (coff_print_aux): Likewise. (coff_compute_section_file_positions): Likewise. (coff_write_object_contents): Likewise. (coff_slurp_line_table): Likewise. (coff_slurp_symbol_table): Likewise. (CALC_ADDEND): Likewise. * coffgen.c (coff_renumber_symbols): Likewise. (coff_mangle_symbols): Likewise. (coff_fix_symbol_name): Likewise. (coff_write_symbol): Likewise. (coff_write_alien_symbol): Likewise. (coff_write_native_symbol): Likewise. (coff_write_symbols): Likewise. (coff_write_linenumbers): Likewise. (coff_pointerize_aux): Likewise. (coff_get_normalized_symtab): Likewise. (coff_get_symbol_info): Likewise. (bfd_coff_get_syment): Likewise. (bfd_coff_get_auxent): Likewise. (coff_print_symbol): Likewise. (coff_find_nearest_line_with_names): Likewise. (bfd_coff_set_symbol_class): Likewise. (coff_make_empty_symbol): Set the is_sym field. (coff_bfd_make_debug_symbol): Likewise. * peicode.h (pe_ILF_make_a_symbol): Likewise. * libcoff.h: Regenerate. * libcoff-in.h: Regenerate.
2014-11-12Fix more memory faults uncovered by fuzzing various executables.Nick Clifton4-14/+53
PR binutils/17512 * dwarf.c (read_and_display_attr_value): Check that we do not read past end. (display_debug_pubnames_worker): Add range checks. (process_debug_info): Check for invalid pointer sizes. (display_loc_list): Likewise. (display_loc_list_dwo): Likewise. (display_debug_ranges): Likewise. (display_debug_aranges): Check for invalid address size. (read_cie): Add range checks. Replace call strchr with while loop. * objdump.c (dump_dwarf): Replace abort with a warning message. (print_section_stabs): Improve range checks. * rdcoff.c (coff_get_slot): Use long for indx parameter type. Add check for an excesively large index. * rddbg.c (read_section_stabs_debugging_info): Zero terminate the string table. Avoid walking off the end of the stabs data. * stabs.c (parse_stab_string): Add check for a NULL name. PR binutils/17512 * coffcode.h (coff_slurp_line_table): Set the line number of corrupt entries to -1. (coff_slurp_symbol_table): Alway initialise the value of the symbol. * coffgen.c (coff_print_symbol): Check that the combined pointer is valid. (coff_print_symbol): Do not print negative line numbers. * peXXigen.c (pe_print_idata): Add range checking displaying member names.
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