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2017-12-01readonly_dynrelocsAlan Modra19-321/+571
In early October, HJ Lu added support for a number of targets to "Dump dynamic relocation in read-only section with minfo". This extends that support to more targets, displays the symbol involved, and splits the existing function that sets TEXTREL into a "readonly_dynrelocs" and "maybe_set_textrel" function. I'll need "readonly_dynrelocs" if I ever get around to fixing "pr22374 function pointer initialization" fails. am33_2.0, arc, bfin, hppa64, mn10300, and nios2 fail to mark a binary needing text relocations with DT_TEXTREL. That's not good. xtensa also fails to do so but complains about "dangerous relocation: dynamic relocation in read-only section" so I reckon that is fine and have marked the test as an xfail. The other targets need maintainer attention. Curiously, the map file dump wasn't added for x86, so the map test currently fail on x86. It also fails on alpha, am33_2.0, arc, bfin, hppa64, ia64, m68k, mips, mn10300, nios2, score and vax. cris complains with "tmpdir/textrel.o, section .rodata: relocation R_CRIS_32 should not be used in a shared object; recompile with -fPIC" so I've marked it as an xfail. bfd/ * elf32-hppa.c (maybe_set_textrel): Print symbol for map file output. * elf32-ppc.c (maybe_set_textrel): Likewise. * elf64-ppc.c (maybe_set_textrel): Likewise. * elf32-arm.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing.. (elf32_arm_readonly_dynrelocs): ..this. * elf32-lm32.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-m32r.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-metag.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-nds32.c: Delete unnecessary forward declarations. (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-or1k.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-s390.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-sh.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf32-tic6x.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing.. (elf32_tic6x_readonly_dynrelocs): ..this. * elf32-tilepro.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elf64-s390.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elfnn-aarch64.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing.. (aarch64_readonly_readonly_dynrelocs): ..this. * elfnn-riscv.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elfxx-sparc.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. * elfxx-tilegx.c (readonly_dynrelocs): New function. (maybe_set_textrel): New function, replacing old version of.. (readonly_dynrelocs): ..this. ld/ * testsuite/ld-elf/shared.exp: Run new textrel tests. * testsuite/ld-elf/textrel.map: New file. * testsuite/ld-elf/textrel.rd: New file. * testsuite/ld-elf/textrel.s: New file. * testsuite/ld-elf/textrel.warn: New file.
2017-12-01Automatic date update in version.inGDB Administrator1-1/+1
2017-12-01PR22533, dynamic relocs generated for weak aliasesAlan Modra4-63/+53
This cleans up yet more craziness with non_got_ref. PR 22533 * elf32-hppa.c (elf32_hppa_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (elf32_hppa_check_relocs): Tweak setting of non_got_ref. (elf32_hppa_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments. (elf32_hppa_relocate_section): Comment fix. * elf32-ppc.c (ppc_elf_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (ppc_elf_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments. * elf64-ppc.c (ppc64_elf_copy_indirect_symbol): Don't do anything special with non_got_ref for weak aliases. (ppc64_elf_adjust_dynamic_symbol): When initialising weak aliases, don't uselessly copy non_got_ref. Clear dyn_relocs instead if strong symbol is allocated in dynbss. Tidy comments.
2017-11-30Automatic date update in version.inGDB Administrator1-1/+1
2017-11-29Check for a NULL symbol pointer when reading relocs from a COFF based file.Nick Clifton2-1/+7
PR 22509 * coffcode.h (coff_slurp_reloc_table): Check for a NULL symbol pointer when processing relocs.
2017-11-29Support --localedir, --datarootdir and --datadirStefan Stroe2-4/+10
bfd/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. binutils/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. gas/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. gold/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. gprof/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. ld/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@. opcodes/ * po/Make-in (datadir): Define as @datadir@. (localedir): Define as @localedir@. (gnulocaledir, gettextsrcdir): Use @datarootdir@.
2017-11-29Automatic date update in version.inGDB Administrator1-1/+1
2017-11-28Prevent a memory exhaustion problem when trying to read in strings from a ↵Nick Clifton2-2/+8
COFF binary with a corrupt string table size. PR 22507 * coffgen.c (_bfd_coff_read_string_table): Check for an excessive size of the external string table.
2017-11-28Fix a memory access violation when attempting to parse a corrupt COFF binary ↵users/ARM/embedded-gdb-master-2017q4users/ARM/embedded-binutils-master-2017q4Nick Clifton10-48/+126
with a relocation that points beyond the end of the section to be relocated. PR 22506 * reloc.c (reloc_offset_in_range): Rename to bfd_reloc_offset_in_range and export. (bfd_perform_relocation): Rename function invocation. (bfd_install_relocation): Likewise. (bfd_final_link_relocate): Likewise. * bfd-in2.h: Regenerate. * coff-arm.c (coff_arm_reloc): Use bfd_reloc_offset_in_range. * coff-i386.c (coff_i386_reloc): Likewise. * coff-i860.c (coff_i860_reloc): Likewise. * coff-m68k.c (mk68kcoff_common_addend_special_fn): Likewise. * coff-m88k.c (m88k_special_reloc): Likewise. * coff-mips.c (mips_reflo_reloc): Likewise. * coff-x86_64.c (coff_amd64_reloc): Likewise.
2017-11-28ELF: Don't set non_ir_ref_regular in check_relocsH.J. Lu53-196/+57
Since elf_link_add_object_symbols sets non_ir_ref_regular now, there is no need to set non_ir_ref_regular in check_relocs. Tested on i686 and x86-64. * elf-m10300.c (mn10300_elf_check_relocs): Don't set non_ir_ref_regular. * elf32-arm.c (elf32_arm_check_relocs): Likewise. * elf32-bfin.c (bfin_check_relocs): Likewise. * elf32-cr16.c (cr16_elf_check_relocs): Likewise. * elf32-cris.c (cris_elf_check_relocs): Likewise. * elf32-d10v.c (elf32_d10v_check_relocs): Likewise. * elf32-dlx.c (elf32_dlx_check_relocs): Likewise. * elf32-fr30.c (fr30_elf_check_relocs): Likewise. * elf32-frv.c (elf32_frv_check_relocs): Likewise. * elf32-hppa.c (elf32_hppa_check_relocs): Likewise. * elf32-i370.c (i370_elf_check_relocs): Likewise. * elf32-i386.c (elf_i386_check_relocs): Likewise. * elf32-iq2000.c (iq2000_elf_check_relocs): Likewise. * elf32-lm32.c (lm32_elf_check_relocs): Likewise. * elf32-m32c.c (m32c_elf_check_relocs): Likewise. * elf32-m32r.c (m32r_elf_check_relocs): Likewise. * elf32-m68hc1x.c (elf32_m68hc11_check_relocs): Likewise. * elf32-m68k.c (elf_m68k_check_relocs): Likewise. * elf32-mcore.c (mcore_elf_check_relocs): Likewise. * elf32-metag.c (elf_metag_check_relocs): Likewise. * elf32-microblaze.c (microblaze_elf_check_relocs): Likewise. * elf32-moxie.c (moxie_elf_check_relocs): Likewise. * elf32-msp430.c (elf32_msp430_check_relocs): Likewise. * elf32-mt.c (mt_elf_check_relocs): Likewise. * elf32-nios2.c (nios2_elf32_check_relocs): Likewise. * elf32-or1k.c (or1k_elf_check_relocs): Likewise. * elf32-ppc.c (ppc_elf_check_relocs): Likewise. * elf32-rl78.c (rl78_elf_check_relocs): Likewise. * elf32-s390.c (elf_s390_check_relocs): Likewise. * elf32-score.c (s3_bfd_score_elf_check_relocs): Likewise. * elf32-score7.c (s7_bfd_score_elf_check_relocs): Likewise. * elf32-sh.c (sh_elf_check_relocs): Likewise. * elf32-tic6x.c (elf32_tic6x_check_relocs): Likewise. * elf32-tilepro.c (tilepro_elf_check_relocs): Likewise. * elf32-v850.c (v850_elf_check_relocs): Likewise. * elf32-vax.c (elf_vax_check_relocs): Likewise. * elf32-xstormy16.c (xstormy16_elf_check_relocs): Likewise. * elf32-xtensa.c (elf_xtensa_check_relocs): Likewise. * elf64-aarch64.c (elf64_aarch64_check_relocs): Likewise. * elf64-alpha.c (elf64_alpha_check_relocs): Likewise. * elf64-hppa.c (elf64_hppa_check_relocs): Likewise. * elf64-ia64-vms.c (elf64_ia64_check_relocs): Likewise. * elf64-mmix.c (mmix_elf_check_relocs): Likewise. * elf64-ppc.c (ppc64_elf_check_relocs): Likewise. * elf64-s390.c (elf_s390_check_relocs): Likewise. * elf64-sh64.c (sh_elf64_check_relocs): Likewise. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. * elfnn-aarch64.c (elfNN_aarch64_check_relocs): Likewise. * elfnn-ia64.c (elfNN_ia64_check_relocs): Likewise. * elfnn-riscv.c (riscv_elf_check_relocs): Likewise. * elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise. * elfxx-tilegx.c (tilegx_elf_check_relocs): Likewise.
2017-11-28PR22471, undefined reference to linker-defined symbolsAlan Modra3-2/+23
This patch processes linker script assignment statements before ld opens DT_NEEDED libraries, in order to define symbols like __bss_start that might also be defined by a library, falsely triggering an error about "DSO missing from command line". The initial value won't be correct when assigning a symbol from dot, and I make no attempt to handle all expressions. For example, an assignment like "_start_foo = ADDR (.foo)" isn't valid until sections are laid out, so won't define _start_foo early. What's here should be enough for most common scripts, and hopefully won't perturb fragile scripts. bfd/ PR 22471 * elflink.c (_bfd_elf_merge_symbol): Allow weak symbols to override early passes over linker script symbols. * linker.c (_bfd_generic_link_add_one_symbol): Allow symbols to override early passes over linker script symbols. Clear ldscript_def on symbol definitions. ld/ PR 22471 * ldexp.c (struct definedness_hash_entry): Delete "by_script". Make "iteration" an 8-bit field, and update mask in all uses. (definedness_newfunc): Don't init "by_script". (update_definedness): Test ldscript_def rather than by_script. (is_sym_value): Likewise. (fold_name <DEFINED>): Return a result for first phase. Test ldscript_def. (fold_name <NAME>): Return a result for first phase. * ldlang.c (open_input_bfds): Process all assignments, not just defsym. (lang_process): Increment lang_statement_iteration before open_input_bfds. * testsuite/ld-mips-elf/tlsdyn-o32-1.d: Adjust for larger .dynsym. * testsuite/ld-mips-elf/tlsdyn-o32-1.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-2.got: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.d: Likewise. * testsuite/ld-mips-elf/tlsdyn-o32-3.got: Likewise.
2017-11-28Copying symbol type in ld script assignmentsAlan Modra2-0/+7
There is a call to update_definedness between code that evaluates an assignment expression value and code that transfers symbol attributes. When script assignment expressions contain DEFINED, that can mean the wrong symbol type is copied. This patch tracks symbols read during expression evaluation, rather than examining the expression and re-evaluating conditionals. Not only does this simplify the code, it also means ld can now copy symbol types in more complex expressions. An unfortunate side effect of copying symbol type for more complex expressions affects mmix, which uses PROVIDE (Main = DEFINED (Main) ? Main : (DEFINED (_start) ? _start : _start.)); in a default script. So now _start or _start. symbol type may be copied, losing the function type specially set up for Main. This can be avoided by making bfd_copy_link_hash_symbol_type do nothing for mmix. bfd/ * elf64-mmix.c (bfd_elf64_bfd_copy_link_hash_symbol_type): Define. ld/ * ldexp.h (struct ldexp_control): Add "assign_src". * ldexp.c (fold_trinary): Save and restore assign_src around condition evaluation. (fold_name <NAME>): Set expld.assign_src. (try_copy_symbol_type): Delete. (exp_fold_tree_1): Set symbol type using expld.assign_src.
2017-11-28ld: Set non_ir_ref_regular on symbols referenced in regular objectsH.J. Lu2-3/+74
If linker plugin is enabled, set non_ir_ref_regular on symbols referenced in regular objects so that linker plugin will get the correct symbol resolution. bfd/ PR ld/22502 * elflink.c (_bfd_elf_merge_symbol): Also skip definition from an IR object. (elf_link_add_object_symbols): If linker plugin is enabled, set non_ir_ref_regular on symbols referenced in regular objects so that linker plugin will get the correct symbol resolution. ld/ PR ld/22502 * testsuite/ld-plugin/lto.exp: Run PR ld/22502 test. * testsuite/ld-plugin/pr22502a.c: New file. * testsuite/ld-plugin/pr22502b.c: Likewise.
2017-11-28Automatic date update in version.inGDB Administrator1-1/+1
2017-11-27[PR ld/22263] aarch64: Avoid dynamic TLS relocs in PIESzabolcs Nagy2-4/+12
No dynamic relocs are needed for TLS defined in an executable, the TP relative offset is known at link time. Fixes FAIL: Build pr22263-1 bfd/ PR ld/22263 * elfnn-aarch64.c (elfNN_aarch64_relocate_section): Use bfd_link_executable instead of bfd_link_pic for TLS. (elfNN_aarch64_allocate_dynrelocs): Likewise. (aarch64_can_relax_tls): Likewise.
2017-11-27[PR ld/22269] aarch64: Handle local undefined weak symbolsSzabolcs Nagy2-2/+15
With static pie linking undefined weak symbols are forced to resolve locally to 0, so no GOT setup is needed in elfNN_aarch64_finish_dynamic_symbol, which previously failed for these symbols. The failure caused the unhelpful error message: "ld: final link failed: Nonrepresentable section on output" bfd/ PR ld/22269 * elfnn-aarch64.c (elfNN_aarch64_finish_dynamic_symbol): Use UNDEFWEAK_NO_DYNAMIC_RELOC to avoid dynamic GOT relocs. (elfNN_aarch64_allocate_dynrelocs): Likewise.
2017-11-27Automatic date update in version.inGDB Administrator1-1/+1
2017-11-26Automatic date update in version.inGDB Administrator1-1/+1
2017-11-25Automatic date update in version.inGDB Administrator1-1/+1
2017-11-24Re-apply "elf: Properly compute offsets of note descriptor and next note"H.J. Lu2-10/+36
CORE PT_NOTE segments may have p_align values of 0 or 1. gABI specifies that PT_NOTE alignment should be aligned to 4 bytes for 32-bit objects and to 8 bytes for 64-bit objects. If segment alignment is less than 4, we use 4 byte alignment.
2017-11-24Revert "elf: Properly compute offsets of note descriptor and next note"Simon Marchi2-29/+10
This reverts commit 650444eb540f9fd85e821567a3f943b4bc41b8be. With this patch, running the GDB test case gdb.base/auxv.exp is stuck in an infinite loop, consuming memory to the point that it renders the machine unusable. I am reverting it so we can take our time to investigate while not killing all the developers' machines.
2017-11-24elf: Properly compute offsets of note descriptor and next noteH.J. Lu2-10/+29
According to gABI, in a note entry, the note name field, not note name size, is padded for the note descriptor. And the note descriptor field, not note descriptor size, is padded for the next note entry. Also notes are aligned to 4 bytes in 32-bit objects and 8 bytes in 64-bit objects. Since on Linux, .note.ABI-tag and .note.gnu.build-id notes are always aligned to 4 bytes, we need to use alignment of note section or note segment, instead of assuming alignment based on ELF file class. Tested on i686 and x86-64. bfd/ PR binutils/22444 * elf.c (elf_read_notes): Add an argument for note aligment. (elf_parse_notes): Likewise. (_bfd_elf_make_section_from_shdr): Pass section aligment to elf_parse_notes. (bfd_section_from_phdr): Pass segment aligment to elf_read_notes. (elf_parse_notes): Add an argument for note aligment. Use ELF_NOTE_DESC_OFFSET to get the offset of the note descriptor. Use ELF_NOTE_NEXT_OFFSET to get the offset of the next note entry. (elf_read_notes): Add an argument for note aligment and pass it to elf_parse_notes. binutils/ PR binutils/22444 * readelf.c (process_notes_at): Use ELF_NOTE_DESC_OFFSET to get the offset of the note descriptor. Use ELF_NOTE_NEXT_OFFSET to get the offset of the next note entry. include/ PR binutils/22444 * elf/external.h (ELF_ALIGN_UP): New. (ELF_NOTE_DESC_OFFSET): Likewise. (ELF_NOTE_NEXT_OFFSET): Likewise.
2017-11-24Automatic date update in version.inGDB Administrator1-1/+1
2017-11-23Don't move weak alias dyn_relocs to weakdefAlan Modra3-109/+113
I did this for powerpc64 a while ago. Not moving weak symbol dyn_relocs to the strong alias makes for a much simpler test for dynamic relocs in relocate_section. This patch implements the change for powerpc and hppa. Other targets could benefit from similar changes. * elf32-hppa.c (pc_dynrelocs): Define. (elf32_hppa_copy_indirect_symbol): Don't copy dyn_relocs to weakdefs. (alias_readonly_dynrelocs): New function. (elf32_hppa_adjust_dynamic_symbol): Don't clear non_got_ref to indicate dyn_relocs should be discarded, discard them here. Use alias_readonly_dynrelocs. (allocate_dynrelocs): Don't test or clear non_got_ref. (elf32_hppa_relocate_section): Simplify test for dynamic relocs. * elf32-ppc.c (ppc_elf_copy_indirect_symbol): Don't copy dyn_relocs to weakdefs. (alias_readonly_dynrelocs, pc_dynrelocs): New functions. (ppc_elf_adjust_dynamic_symbol): Don't clear non_got_ref to indicate dyn_relocs should be discarded, discard them here. Use alias_readonly_dynrelocs. (allocate_dynrelocs): Don't test or clear non_got_ref. (ppc_elf_relocate_section): Simplify test for dynamic relocs.
2017-11-23Delete powerpc64 symbol weakref fieldAlan Modra2-39/+15
Now that u.alias is circular, weakref just duplicates its function. Also, function symbols shouldn't be on the alias list so there is no need to use alias_readonly_dynrelocs with them. * elf64-ppc.c (struct ppc_link_hash_entry): Delete weakref field. (ppc64_elf_copy_indirect_symbol): Don't set weakref. (alias_readonly_dynrelocs): Use u.alias rather than weakref. (ppc64_elf_adjust_dynamic_symbol): Don't use alias_readonly_dynrelocs for function symbols.
2017-11-23Rename u.weakdef and make it a circular listAlan Modra42-294/+377
This makes the elf_link_hash_entry weakdef field, currently used to point from a weak symbol to a strong alias, a circular list so that all aliases can be found from any of them. A new flag, is_weakalias, distinguishes the weak symbol from a strong alias, and is used in all places where we currently test u.weakdef != NULL. With the original u.weakdef handling it was possible to have two or more weak symbols pointing via u.weakdef to a strong definition. Obviously that situation can't map to a circular list; One or more of the weak symbols must point at another weak alias rather than the strong definition. To handle that, I've added an accessor function to return the strong definition. * elf-bfd.h (struct elf_link_hash_entry): Add is_weakalias. Rename u.weakdef to u.alias and update comment. (weakdef): New static inline function. * elflink.c (bfd_elf_record_link_assignment) Test is_weakalias rather than u.weakdef != NULL, and use weakdef function. (_bfd_elf_adjust_dynamic_symbol): Likewise. (_bfd_elf_fix_symbol_flags): Likewise. Clear is_weakalias on all aliases if def has been overridden in a regular object, not u.weakdef. (elf_link_add_object_symbols): Delete new_weakdef flag. Test is_weakalias and use weakdef. Set is_weakalias and circular u.alias. Update comments. (_bfd_elf_gc_mark_rsec): Test is_weakalias rather than u.weakdef != NULL and use weakdef function. * elf-m10300.c (_bfd_mn10300_elf_adjust_dynamic_symbol): Test is_weakalias rather than u.weakdef != NULL and use weakdef function. Assert that def is strong defined. * elf32-arc.c (elf_arc_adjust_dynamic_symbol): Likewise. * elf32-arm.c (elf32_arm_adjust_dynamic_symbol): Likewise. * elf32-bfin.c (elf32_bfinfdpic_adjust_dynamic_symbol): Likewise. (bfin_adjust_dynamic_symbol): Likewise. * elf32-cr16.c (_bfd_cr16_elf_adjust_dynamic_symbol): Likewise. * elf32-cris.c (elf_cris_adjust_dynamic_symbol): Likewise. * elf32-frv.c (elf32_frvfdpic_adjust_dynamic_symbol): Likewise. * elf32-hppa.c (elf32_hppa_adjust_dynamic_symbol): Likewise. * elf32-i370.c (i370_elf_adjust_dynamic_symbol): Likewise. * elf32-lm32.c (lm32_elf_adjust_dynamic_symbol): Likewise. * elf32-m32r.c (m32r_elf_adjust_dynamic_symbol): Likewise. * elf32-m68k.c (elf_m68k_adjust_dynamic_symbol): Likewise. * elf32-metag.c (elf_metag_adjust_dynamic_symbol): Likewise. * elf32-microblaze.c (microblaze_elf_adjust_dynamic_symbol): Likewise. * elf32-nds32.c (nds32_elf_adjust_dynamic_symbol): Likewise. * elf32-nios2.c (nios2_elf32_adjust_dynamic_symbol): Likewise. * elf32-or1k.c (or1k_elf_adjust_dynamic_symbol): Likewise. * elf32-ppc.c (ppc_elf_adjust_dynamic_symbol): Likewise. * elf32-s390.c (elf_s390_adjust_dynamic_symbol): Likewise. * elf32-score.c (s3_bfd_score_elf_adjust_dynamic_symbol): Likewise. * elf32-score7.c (s7_bfd_score_elf_adjust_dynamic_symbol): Likewise. * elf32-sh.c (sh_elf_adjust_dynamic_symbol): Likewise. * elf32-tic6x.c (elf32_tic6x_adjust_dynamic_symbol): Likewise. * elf32-tilepro.c (tilepro_elf_gc_mark_hook): Likewise. (tilepro_elf_adjust_dynamic_symbol): Likewise. * elf32-vax.c (elf_vax_adjust_dynamic_symbol): Likewise. * elf32-xtensa.c (elf_xtensa_adjust_dynamic_symbol): Likewise. * elf64-alpha.c (elf64_alpha_adjust_dynamic_symbol): Likewise. * elf64-hppa.c (elf64_hppa_adjust_dynamic_symbol): Likewise. * elf64-ia64-vms.c (elf64_ia64_adjust_dynamic_symbol): Likewise. * elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise. (ppc64_elf_adjust_dynamic_symbol): Likewise. * elf64-s390.c (elf_s390_adjust_dynamic_symbol): Likewise. * elf64-sh64.c (sh64_elf64_adjust_dynamic_symbol): Likewise. * elfnn-aarch64.c (elfNN_aarch64_adjust_dynamic_symbol): Likewise. * elfnn-ia64.c (elfNN_ia64_adjust_dynamic_symbol): Likewise. * elfnn-riscv.c (riscv_elf_adjust_dynamic_symbol): Likewise. * elfxx-mips.c (_bfd_mips_elf_adjust_dynamic_symbol): Likewise. * elfxx-sparc.c (_bfd_sparc_elf_gc_mark_hook): Likewise. (_bfd_sparc_elf_adjust_dynamic_symbol): Likewise. * elfxx-tilegx.c (tilegx_elf_gc_mark_hook): Likewise. (tilegx_elf_adjust_dynamic_symbol): Likewise. * elfxx-x86.c (_bfd_x86_elf_adjust_dynamic_symbol): Likewise.
2017-11-23Automatic date update in version.inGDB Administrator1-1/+1
2017-11-22Automatic date update in version.inGDB Administrator1-1/+1
2017-11-21Add NULL bfd test to elf_symbol_fromAlan Modra3-4/+12
A followup to PR22443. * elf-bfd.h (elf_symbol_from): Check for NULL symbol bfd. * elfcode.h (elf_slurp_reloc_table_from_section): Add FIXME comment.
2017-11-21Automatic date update in version.inGDB Administrator1-1/+1
2017-11-20Fix handling of GNU Property notes that are not in a GNU NOTE PROPERTY section.Nick Clifton2-4/+17
PR 22450 gas * elf-properties.c (_bfd_elf_link_setup_gnu_properties): Skip objects without a GNU_PROPERTY note section when looking for a bfd onto which notes can be accumulated. ld * testsuite/ld-elf/elf.exp: Add --defsym ALIGN=2|3 to assembler command line depending upon the size of the target address space. * testsuite/ld-elf/pr22450.s: New test file. * testsuite/ld-elf/pr22450.d: New test driver. * testsuite/config/default.exp: Add note that LD_CLASS refers to the size of the host linker not the size of the target linker.
2017-11-21PR22451, strip no longer works on older object filesAlan Modra2-7/+25
Setting SHF_GROUP unconditionally on rel/rela sections associated with SHF_GROUP sections fails badly with objcopy/strip and ld -r if the input file SHT_GROUP section didn't specify the rel/rela sections. This patch rearranges where SHF_GROUP is set for rel/rela sections. PR 22451 PR 22460 * elf.c (_bfd_elf_init_reloc_shdr): Delete "sec_hdr" parameter and leave rel_hdr->sh_flags zero. Update calls. (bfd_elf_set_group_contents): Check input rel/rela SHF_GROUP flag when !gas before adding rel/rela section to group. Set output rel/rela SHF_GROUP flags.
2017-11-20Automatic date update in version.inGDB Administrator1-1/+1
2017-11-18Fix error message typo.Jim Wilson2-1/+6
bfd/ * elfnn-riscv.c (_bfd_riscv_relax_align): Add space between alignment and to in error message.
2017-11-19Automatic date update in version.inGDB Administrator1-1/+1
2017-11-18Automatic date update in version.inGDB Administrator1-1/+1
2017-11-17x86: Pass "%F%P:" to linker callback in case of errorH.J. Lu2-10/+15
We should pass "%F%P:" to linker callback in case of error. Otherwise, linker will report: : failed to create GNU property section * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Pass "%F%P:", instead of "%F:", to linker callback in case of error.
2017-11-17Automatic date update in version.inGDB Administrator1-1/+1
2017-11-16Prevent illegal memory accesses when parsing incorrecctly formated core notes.Nick Clifton2-0/+17
PR 22421 * elf.c (elfcore_grok_netbsd_procinfo): Check that the note is big enough. (elfcore_grok_openbsd_procinfo): Likewise. (elfcore_grok_nto_status): Likewise.
2017-11-16Prevent a possible seg-fault in the section merging code, by always creating ↵Nick Clifton2-10/+17
a padding buffer. * merge.c (sec_merge_emit): Always create padding buffer. Add asserts to make sure that the buffer is long enough.
2017-11-16Automatic date update in version.inGDB Administrator1-1/+1
2017-11-15Handle ' and I format flagsAlan Modra2-14/+29
Also a little tidying and error checking. * bfd.c (union _bfd_doprnt_args): Add "Bad". (_bfd_doprnt): Handle more flags. (_bfd_doprnt_scan): Likewise. Tidy setting of args array. (error_handler_internal): Init args type to Bad.
2017-11-15Automatic date update in version.inGDB Administrator1-1/+1
2017-11-14PR22431, powerpc64 ld segfault when .plt discardedAlan Modra2-6/+19
The fix for the PR is to not use input_section->output_section->owner to get to the output bfd, but use the output bfd directly since it is available nowadays in struct bfd_link_info. I thought it worth warning when non-empty dynamic sections are discarded too, which meant a tweak to one of the ld tests to avoid the warning. bfd/ PR 22431 * elf64-ppc.c (ppc64_elf_size_dynamic_sections): Warn on discarding non-empty dynamic section. (ppc_build_one_stub): Take elf_gp from output bfd, not output section owner. (ppc_size_one_stub, ppc64_elf_next_toc_section): Likewise. ld/ * testsuite/ld-elf/note-3.t: Don't discard .got.
2017-11-14Inconsistent .eh_frame_hdr on powerpc64Alan Modra2-1/+6
There is code in bfd/elf-eh-frame.c and ld/emultempl/elf32.em that checks for the presence of eh_frame info by testing for a section named .eh_frame sized more than 8 bytes. The size test is to exclude a zero terminator. A similar check in elf64-ppc.c wrongly just tested for non-zero size before creating the linker generated .eh_frame describing plt call and other linkage stubs. The intention was to not generate that info unless there was some user .eh_frame. (No user .eh_frame implies the user doesn't care about exception handling.) Because the test in elf64-ppc.c was wrong, ld generated the stub .eh_frame just on finding a zero .eh_frame terminator in crtend.o, but didn't generate the corresponding .eh_frame_hdr. * elf64-ppc.c (ppc64_elf_size_stubs): Correct test for user .eh_frame info.
2017-11-14Automatic date update in version.inGDB Administrator1-1/+1
2017-11-13PE: don't corrupt section flags when linking from ELF objectsJan Beulich3-8/+27
Linking EFI executables from ELF object files can result in corrupted COFF section flags if the section's alignment is too high. Issue a diagnostic in that case, erroring out if this is not a final link, and make sure only in-range values get written to the output image. While doing this also make tic80 use the generic alignment macros instead of custom #ifdef-ary. No testsuite regressions for the range of COFF/PE targets that actually cross-build in the first place on x86-64-linux.
2017-11-12ld: Remove PF_X from PT_PHDR segmentH.J. Lu2-2/+7
It was reasonable to mark PT_PHDR segment with PF_X for compatibility with UnixWare and Solaris linkers 20 years ago. But it is inappropriate today when the primary OS of GNU ld is Linux. This patch removes PF_X from PT_PHDR segment as gold does. Tested natively on Linux/x86 as well as crosss-binutils for alpha-linux, ia64-linux, powerpc64-linux, powerpc-linux, s390-linux, s390x-linux, sparc64-linux and sparc-linux. bfd/ PR ld/22423 * elf.c (_bfd_elf_map_sections_to_segments): Remove PF_X from PT_PHDR segment. ld/ PR ld/22423 * testsuite/ld-alpha/tlsbin.rd: Replace "R E " with "R +" for PT_PHDR segment. * testsuite/ld-alpha/tlsbinr.rd: Likewise. * testsuite/ld-ia64/tlsbin.rd: Likewise. * testsuite/ld-powerpc/tlsexe.r: Likewise. * testsuite/ld-powerpc/tlsexe32.r: Likewise. * testsuite/ld-powerpc/tlsexetoc.r: Likewise. * testsuite/ld-s390/tlsbin.rd: Likewise. * testsuite/ld-s390/tlsbin_64.rd: Likewise. * testsuite/ld-sparc/tlssunbin32.rd: Likewise. * testsuite/ld-sparc/tlssunbin64.rd: Likewise. * testsuite/ld-elf/pr22423.d: New test.
2017-11-13Automatic date update in version.inGDB Administrator1-1/+1
2017-11-12weakdef list handlingAlan Modra2-4/+9
The existing code allowed common and indirect symbols to pass an assert, but then read root.u.def which is not valid for anything besides defined and weakdef symbols. The garbage root.u.def.section pointer read can't possibly match pointers stored at the same location for indirect and common symbols, so we would always have left u.weakdef NULL. * elflink.c (elf_link_add_object_symbols): Ignore anything but defined and defweak symbols when setting up weakdefs.