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2016-05-03[AArch64] Also puts value in place for R_AARCH64_RELATIVEJiong Wang1-0/+9
When handling absolute relocations for global symbols bind within the shared object, AArch64 will generate one dynamic RELATIVE relocation, but won't apply the value for this absolution relocations at static linking stage. This is different from AArch64 gold linker and x86-64. This is not a bug as AArch64 is RELA, there is only guarantee that relocation addend is placed in the relocation entry. But some system softwares originally writen for x86-64 might assume AArch64 bfd linker gets the same behavior as x86-64, then they could take advantage of this buy skipping those RELATIVE dynamic relocations if the load address is the same as the static linking address. This patch makes AArch64 BFD linker applies absolution relocations at static linking stage for scenario described above. Meanwhile old AArch64 android loader has a bug (PR19163) which relies on current linker behavior as a workaround, so the same option --no-apply-dynamic-relocs added.
2016-04-29Set interpreter in x86 create_dynamic_sectionsH.J. Lu1-0/+9
Set interpreter in x86 create_dynamic_sections to make this information available to x86 check_relocs. * elf32-i386.c (elf_i386_size_dynamic_sections): Move interp setting to ... (elf_i386_create_dynamic_sections): Here. * elf64-x86-64.c (elf_x86_64_size_dynamic_sections): Move interp setting to ... (elf_x86_64_create_dynamic_sections): Here.
2016-04-29Pass GOT_RELOC to UNDEFINED_WEAK_RESOLVED_TO_ZEROH.J. Lu1-0/+21
When UNDEFINED_WEAK_RESOLVED_TO_ZERO is checked to convert load via GOT, has_got_reloc is always TRUE. This patch adds GOT_RELOC, which is TRUE in x86 convert_load, to UNDEFINED_WEAK_RESOLVED_TO_ZERO. * elf32-i386.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): Take GOT_RELOC and replace (EH)->has_got_reloc with GOT_RELOC. (elf_i386_fixup_symbol): Pass has_got_reloc to UNDEFINED_WEAK_RESOLVED_TO_ZERO. (elf_i386_allocate_dynrelocs): Likewise. (elf_i386_relocate_section): Likewise. (elf_i386_finish_dynamic_symbol): Likewise. (elf_i386_convert_load): Pass TRUE to UNDEFINED_WEAK_RESOLVED_TO_ZERO. * elf64-x86-64.c (UNDEFINED_WEAK_RESOLVED_TO_ZERO): Take GOT_RELOC and replace (EH)->has_got_reloc with GOT_RELOC. (elf_x86_64_fixup_symbol): Pass has_got_reloc to UNDEFINED_WEAK_RESOLVED_TO_ZERO. (elf_x86_64_allocate_dynrelocs): Likewise. (elf_x86_64_relocate_section): Likewise. (elf_x86_64_finish_dynamic_symbol): Likewise. (elf_x86_64_convert_load): Pass TRUE to UNDEFINED_WEAK_RESOLVED_TO_ZERO.
2016-04-29i386: Don't relocate section when check_relocs failedH.J. Lu1-0/+6
No need to relocate section when check_relocs failed. * elf32-i386.c (check_relocs_failed): New. (elf_i386_check_relocs): Set check_relocs_failed on error. (elf_i386_relocate_section): Skip if check_relocs failed.
2016-04-29X86-64: Set check_relocs_failed on errorH.J. Lu1-0/+5
When checking relocations, set check_relocs_failed on error. * elf64-x86-64.c (elf_x86_64_check_relocs): Set check_relocs_failed on error.
2016-04-29Enhance support for copying and stripping Solaris and ARM binaries.Nick Clifton1-0/+25
PR 19938 bfd * elf-bfd.h (struct elf_backend_data): Rename elf_backend_set_special_section_info_and_link to elf_backend_copy_special_section_fields. * elfxx-target.h: Likewise. * elf.c (section_match): Ignore the SHF_INFO_LINK flag when comparing section flags. (copy_special_section_fields): New function. (_bfd_elf_copy_private_bfd_data): Copy the EI_ABIVERSION field. Perform two scans over special sections. The first one looks for a direct mapping between the output section and an input section. The second scan looks for a possible match based upon section characteristics. * elf32-arm.c (elf32_arm_copy_special_section_fields): New function. Handle setting the sh_link field of SHT_ARM_EXIDX sections. * elf32-i386.c (elf32_i386_set_special_info_link): Rename to elf32_i386_copy_solaris_special_section_fields. * elf32-sparc.c (elf32_sparc_set_special_section_info_link): Rename to elf32_sparc_copy_solaris_special_section_fields. * elf64-x86-64.c (elf64_x86_64_set_special_info_link): Rename to elf64_x86_64_copy_solaris_special_section_fields. binutils* readelf.c (get_solaris_segment_type): New function. (get_segment_type): Call it.
2016-04-28Updated Chinese (simplified) translations for bfd, binutils and gold.Nick Clifton1-0/+4
2016-04-27Skip debug sections when estimating distancesH.J. Lu1-0/+6
Skip debug sections when estimating distances between output sections since compressed_size is used to compress debug sections and debug sections aren't excluded from distances between output sections. bfd/ PR ld/20006 * elf64-x86-64.c (elf_x86_64_convert_load): Skip debug sections when estimating distances between output sections. ld/ PR ld/20006 * testsuite/ld-elfvsb/elfvsb.exp (COMPRESS_LDFLAG): New. (visibility_run): Pass COMPRESS_LDFLAG to visibility_test on ELF targets.
2016-04-27Cache result of scan for __start_* and __stop_* sectionsAlan Modra1-0/+6
include/ * bfdlink.h (struct bfd_link_hash_entry): Add "section" field to undef. Formatting. bfd/ * elflink.c (_bfd_elf_is_start_stop): New function. (_bfd_elf_gc_mark_rsec): Use it. * elf-bfd.h (_bfd_elf_is_start_stop): Declare.
2016-04-26add casts to avoid arithmetic on void *Trevor Saunders1-0/+6
arithmetic on void * is undefined in ISO C, so we should avoid it. In GNU C sizeof void * is defined as 1, and that is pretty clearly what this code wants, so change it to do arithmetic on bfd_byte *. Unfortunately most of the argument types come from virtual function interfaces so changing the types to bfd_byte * isn't trivial though it might make the code clearer. So for the moment its easiest to leave the variable types as void * and cast before doing arithmetic. bfd/ChangeLog: 2016-04-26 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * elf32-rx.c (rx_set_section_contents): Avoid arithmetic on void *. * mmo.c (mmo_get_section_contents): Likewise. (mmo_set_section_contents): Likewise.
2016-04-26Always count the NULL entry in dynamic symbol tableH.J. Lu1-0/+9
There is an unused NULL entry at the head of dynamic symbol table which we must account for in our count even if the table is empty or unused since it is intended for the mandatory DT_SYMTAB tag (.dynsym section) in .dynamic section. * elf-bfd.h (elf_link_hash_table): Update comments for dynsymcount. * elflink.c (_bfd_elf_link_renumber_dynsyms): Always count for the unused NULL entry at the head of dynamic symbol table. (bfd_elf_size_dynsym_hash_dynstr): Remove dynsymcount != 0 checks.
2016-04-21Exclude linker created file from dynobjH.J. Lu1-0/+5
Some ELF targets create a "linker stubs" fake bfd. Don't use it to set dynobj. * elflink.c (_bfd_elf_link_create_dynstrtab): Exclude linker created file from dynobj.
2016-04-21Set dynobj to a normal input file if possibleH.J. Lu1-0/+5
When check_relocs is called after gc-sections has run, _bfd_elf_link_create_dynstrtab may be called with an dynamic object and hash_table->dynobj may be NULL. We may not set dynobj, an input file holding linker created dynamic sections to the dynamic object, which has its own dynamic sections. We need to find a normal input file to hold linker created sections if possible. Otherwise ld will crash during LTO input rescan when linker created dynamic section overrides input dynamic section. * elflink.c (_bfd_elf_link_create_dynstrtab): Set dynobj to a normal input file if possible.
2016-04-21Add support for non-ELF targets to check their relocs.Nick Clifton1-0/+39
bfd * aout-adobe.c: Use _bfd_generic_link_check_relocs. * aout-target.h: Likewise. * aout-tic30.c: Likewise. * binary.c: Likewise. * bout.c: Likewise. * coff-alpha.c: Likewise. * coff-rs6000.c: Likewise. * coff64-rs6000.c: Likewise. * coffcode.h: Likewise. * i386msdos.c: Likewise. * i386os9k.c: Likewise. * ieee.c: Likewise. * ihex.c: Likewise. * libbfd-in.h: Likewise. * libecoff.h: Likewise. * mach-o-target.c: Likewise. * mmo.c: Likewise. * nlm-target.h: Likewise. * oasys.c: Likewise. * pef.c: Likewise. * plugin.c: Likewise. * ppcboot.c: Likewise. * som.c: Likewise. * srec.c: Likewise. * tekhex.c: Likewise. * versados.c: Likewise. * vms-alpha.c: Likewise. * xsym.c: Likewise. * elfxx-target.h: Use _bfd_elf_link_check_relocs. * linker.c (bfd_link_check_relocs): New function. (_bfd_generic_link_check_relocs): New function. * targets.c (BFD_JUMP_TABLE_LINK): Add initialization of _bfd_link_check_relocs field. (struct bfd_target)L Add _bfd_link_check_relocs field. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. ld * ldlang.c (lang_check_relocs): Use bfd_link_check_relocs in prefernce to _bfd_elf_link_check_relocs. Drop test for ELF targets. Do not stop the checks when problems are encountered. include * bfdlink.h: Add prototype for bfd_link_check_relocs.
2016-04-20Remove x86 gc_sweep_hookH.J. Lu1-0/+7
Since x86 backends never see the removed sections, there is no need for gc_sweep_hook. * elf32-i386.c (elf_i386_gc_sweep_hook): Removed. (elf_backend_gc_sweep_hook): Likewise. * elf64-x86-64.c (elf_x86_64_gc_sweep_hook): Likewise. (elf_backend_gc_sweep_hook): Likewise.
2016-04-20Don't check relocations in excluded sectionsH.J. Lu1-0/+5
When checking relocations after gc-sections has run, the unused sections have been removed. Don't check relocations in excluded sections. * elflink.c (_bfd_elf_link_check_relocs): Don't check relocations in excluded sections
2016-04-20Check run-time R_X86_64_32 relocation overflowH.J. Lu1-0/+11
Since elf_x86_64_check_relocs is called after opening all input files, we can detect dynamic R_X86_64_32 relocation overflow there. bfd/ PR ld/19969 * elf64-x86-64.c (check_relocs_failed): New. (elf_x86_64_need_pic): Moved before elf_x86_64_check_relocs. Support relocation agaist local symbol. Set check_relocs_failed. (elf_x86_64_check_relocs): Use elf_x86_64_need_pic. Check R_X86_64_32 relocation overflow. (elf_x86_64_relocate_section): Skip if check_relocs failed. Update one elf_x86_64_need_pic and remove one elf_x86_64_need_pic. ld/ PR ld/19969 * testsuite/ld-x86-64/pr19969.d: New file. * testsuite/ld-x86-64/pr19969a.S: Likewise. * testsuite/ld-x86-64/pr19969b.S: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr19969 tests.
2016-04-20Call _bfd_elf_create_ifunc_sections only for ifuncH.J. Lu1-0/+6
Since x86 check_relocs is called after opening all input files, we need to call _bfd_elf_create_ifunc_sections only for STT_GNU_IFUNC symbols. * elf32-i386.c (elf_i386_check_relocs): Call _bfd_elf_create_ifunc_sections only for STT_GNU_IFUNC symbol. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
2016-04-20Check ELF relocs after opening all input filesH.J. Lu1-0/+7
Delaying checking ELF relocations until opening all input files so that symbol information is final when relocations are checked. This is only enabled for x86 targets. bfd/ * elf-bfd.h (_bfd_elf_link_check_relocs): New. * elflink.c (_bfd_elf_link_check_relocs): New function. (elf_link_add_object_symbols): Call _bfd_elf_link_check_relocs if check_relocs_after_open_input is FALSE. include/ * bfdlink.h (bfd_link_info): Add check_relocs_after_open_input. ld/ * emulparams/elf32_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): New. * emulparams/elf_i386.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_be.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_chaos.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_ldso.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_i386_vxworks.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/elf_x86_64.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emulparams/i386nto.sh (CHECK_RELOCS_AFTER_OPEN_INPUT): Likewise. * emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Set check_relocs_after_open_input to TRUE if CHECK_RELOCS_AFTER_OPEN_INPUT is yes. (gld${EMULATION_NAME}_after_open): Call _bfd_elf_link_check_relocs on all inputs if check_relocs_after_open_input is TRUE.
2016-04-20update many old style function definitionsTrevor Saunders1-0/+7
This includes regenerating a bunch of files in opcodes/ with trunk cgen. gprof/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * basic_blocks.c: Update old style function definitions. * cg_arcs.c: Likewise. * cg_print.c: Likewise. * gen-c-prog.awk: Likewise. * gmon_io.c: Likewise. * hertz.c: Likewise. * hist.c: Likewise. * sym_ids.c: Likewise. bfd/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * cache.c: Update old style function definitions. * elf32-m68k.c: Likewise. * elf64-mmix.c: Likewise. * stab-syms.c: Likewise. opcodes/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * alpha-dis.c: Regenerate. * crx-dis.c: Likewise. * disassemble.c: Likewise. * epiphany-opc.c: Likewise. * fr30-opc.c: Likewise. * frv-opc.c: Likewise. * ip2k-opc.c: Likewise. * iq2000-opc.c: Likewise. * lm32-opc.c: Likewise. * lm32-opinst.c: Likewise. * m32c-opc.c: Likewise. * m32r-opc.c: Likewise. * m32r-opinst.c: Likewise. * mep-opc.c: Likewise. * mt-opc.c: Likewise. * or1k-opc.c: Likewise. * or1k-opinst.c: Likewise. * tic80-opc.c: Likewise. * xc16x-opc.c: Likewise. * xstormy16-opc.c: Likewise. ld/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * emultempl/scoreelf.em: Likewise. binutils/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * resres.c: Likewise. gas/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * cgen.c: Likewise. * config/tc-bfin.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-mep.c: Likewise. * config/tc-metag.c: Likewise. * config/tc-nios2.c: Likewise. * config/tc-rl78.c: Likewise.
2016-04-20change argument type to bfd_byteTrevor Saunders1-0/+4
We operate on the pointer's target as a set of bytes, and this avoids doing arithmetic on void * which is undefined in ISO C. bfd/ChangeLog: 2016-04-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * elf32-arm.c (put_thumb2_insn): Change argument type to bfd_byte *.
2016-04-15Regenerate Makefile.in/aclocal.m4 automake 1.11.6H.J. Lu1-0/+6
bfd/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. binutils/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. gas/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * doc/Makefile.in: Likewise. gold/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. * testsuite/Makefile.in: Likewise. gprof/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. ld/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise. opcodes/ * Makefile.in: Regenerated with automake 1.11.6. * aclocal.m4: Likewise.
2016-04-14arc/nps400 : New cmem instructions and associated relocationAndrew Burgess1-0/+12
Add support for arc/nps400 cmem instructions, these load and store instructions are hard-wired to access "0x57f00000 + 16-bit-offset". Supporting this relocation required some additions to the arc relocation handling in the bfd library, as well as the standard changes required to add a new relocation type. There's a test of the new instructions in the assembler, and a test of the relocation in the linker. bfd/ChangeLog: * reloc.c: Add BFD_RELOC_ARC_NPS_CMEM16 entry. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. * elf32-arc.c: Add 'opcode/arc.h' include. (struct arc_relocation_data): Add symbol_name. (arc_special_overflow_checks): New function. (arc_do_relocation): Use arc_special_overflow_checks, reindent as required, add an extra comment. (elf_arc_relocate_section): Setup symbol_name in reloc_data. gas/ChangeLog: * testsuite/gas/arc/nps400-3.d: New file. * testsuite/gas/arc/nps400-3.s: New file. include/ChangeLog: * elf/arc-reloc.def: Add ARC_NPS_CMEM16 reloc. * opcode/arc.h (NPS_CMEM_HIGH_VALUE): Define. ld/ChangeLog: * testsuite/ld-arc/arc.exp: New file. * testsuite/ld-arc/nps-1.s: New file. * testsuite/ld-arc/nps-1a.d: New file. * testsuite/ld-arc/nps-1b.d: New file. * testsuite/ld-arc/nps-1b.err: New file. opcodes/ChangeLog: * arc-nps400-tbl.h: Add xldb, xldw, xld, xstb, xstw, and xst instructions. * arc-opc.c (insert_nps_cmem_uimm16): New function. (extract_nps_cmem_uimm16): New function. (arc_operands): Add NPS_XLDST_UIMM16 operand.
2016-04-14bfd/arc: Rename enum entries to avoid conflictsAndrew Burgess1-0/+8
In bfd/elf32-arc.c an enum is created that contains entries with generic names like 'NONE' and 'OFF'. This has been fine for now, but I had a need to include opcode/arc.h into bfd/elf32-arc.c. Unfortunately opcode/arc.h includes a different enum with identical generic names. Given that changing the enum in the header file could mean wide-ranging changes, while changing the enum in the .c file is limited to only changing the one file, I've added a prefix to the enum in the .c file. This commit does not add the new include, that will come later. There should be no functional change with this commit. bfd/ChangeLog: * elf32-arc.c (tls_got_entries): Add 'TLS_GOT_' prefix to all entries. (elf_arc_relocate_section): Update enum uses. (elf_arc_check_relocs): Likewise. (elf_arc_finish_dynamic_symbol): Likewise.
2016-04-14Replace "link" with "sh_link"H.J. Lu1-0/+5
On Linux/x86, GCC 4.2 issues a warning: bfd/elf.c: In function ‘_bfd_elf_copy_private_bfd_data’: bfd/elf.c:1334: warning: declaration of ‘link’ shadows a global declaration /usr/include/unistd.h:757: warning: shadowed declaration is here make[6]: *** [elf.lo] Error 1 Replace "link" with "sh_link" fixes it. * elf.c (_bfd_elf_copy_private_bfd_data): Replace "link" with "sh_link".
2016-04-14Fix copying Solaris binaries with objcopy.Nick Clifton1-0/+36
PR target/19938 bfd * elf-bbfd.h (struct elf_backend_data): New field: elf_strtab_flags. New field: elf_backend_set_special_section_info_and_link * elfxx-target.h (elf_backend_strtab_flags): Define if not already defined. (elf_backend_set_special_section_info_and_link): Define if not already defined. (elfNN_bed): Use elf_backend_set_special_section_info_and_link and elf_backend_strtab_flags macros to initialise fields in structure. * elf.c (_bfd_elf_make_section_from_shdr): Check for SHF_STRINGS being set even if SHF_MERGE is not set. (elf_fake_sections): Likewise. (section_match): New function. Matches two ELF sections based upon fixed characteristics. (find_link): New function. Locates a section in a BFD that matches a section in a different BFD. (_bfd_elf_copy_private_bfd_data): Copy the sh_info and sh_link fields of reserved sections. (bfd_elf_compute_section_file_positions): Set the flags for the .shstrtab section based upon the elf_strtab_flags field in the elf_backend_data structure. (swap_out_syms): Likewise for the .strtab section. * elflink.c (bfd_elf_final_link): Set the flags for the .strtab section based upon the elf_strtab_flags field in the elf_backend_data structure. * elf32-i386.c (elf32_i386_set_special_info_link): New function. (elf_backend_strtab_flags): Set to SHF_STRINGS for Solaris targets. (elf_backend_set_special_section_info_and_link): Define for Solaris targets. * elf32-sparc.c: Likewise. * elf64-x86-64.c: Likewise. binutils* testsuite/binutils-all/i386/compressed-1b.d: Allow for the string sections possibly having the SHF_STRINGS flag bit set. * testsuite/binutils-all/i386/compressed-1c.d: Likewise. * testsuite/binutils-all/readelf.s: Likewise. * testsuite/binutils-all/readelf.s-64: Likewise. * testsuite/binutils-all/x86-64/compressed-1b.d: Likewise. * testsuite/binutils-all/x86-64/compressed-1c.d: Likewise. gas * testsuite/gas/i386/ilp32/x86-64-unwind.d: Allow for the string sections possibly having the SHF_STRINGS flag bit set. * testsuite/gas/i386/x86-64-unwind.d: Likewise.
2016-04-11Properly handle dynamic reloc against normal symbolH.J. Lu1-0/+23
We shouldn't issue an error for read-only segment with dynamic IFUNC relocations when dynamic relocations are against normal symbols. bfd/ PR ld/19939 * elf-bfd.h (_bfd_elf_allocate_ifunc_dyn_relocs): Add a pointer to bfd_boolean. * elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Updated. Set *readonly_dynrelocs_against_ifunc_p to TRUE if dynamic reloc applies to read-only section. * elf32-i386.c (elf_i386_link_hash_table): Add readonly_dynrelocs_against_ifunc. (elf_i386_allocate_dynrelocs): Updated. (elf_i386_size_dynamic_sections): Issue an error for read-only segment with dynamic IFUNC relocations only if readonly_dynrelocs_against_ifunc is TRUE. * elf64-x86-64.c (elf_x86_64_link_hash_table): Add readonly_dynrelocs_against_ifunc. (elf_x86_64_allocate_dynrelocs): Updated. (elf_x86_64_size_dynamic_sections): Issue an error for read-only segment with dynamic IFUNC relocations only if readonly_dynrelocs_against_ifunc is TRUE. * elfnn-aarch64.c (elfNN_aarch64_allocate_ifunc_dynrelocs): Updated. ld/ PR ld/19939 * testsuite/ld-i386/i386.exp: Run PR ld/19939 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr19939.s: New file. * testsuite/ld-i386/pr19939a.d: Likewise. * testsuite/ld-i386/pr19939b.d: Likewise. * testsuite/ld-x86-64/pr19939.s: Likewise. * testsuite/ld-x86-64/pr19939a.d: Likewise. * testsuite/ld-x86-64/pr19939b.d: Likewise.
2016-04-06Fix memory leak in ld ARM backendThomas Preud'homme1-0/+6
2016-04-06 Thomas Preud'homme <thomas.preudhomme@arm.com> bfd/ * elf32-arm.c (elf32_arm_size_stubs): Move error_ret_free_local to be a fall through from error_ret_free_internal. Free local_syms in error_ret_free_local if allocated from bfd_elf_get_elf_syms ().
2016-04-05[ARC] PLT content endianess awareness.Claudiu Zissulescu1-0/+5
bfd/ 2016-04-05 Cupertino Miranda <cmiranda@synopsys.com> * elf32-arc.c (plt_do_relocs_for_symbol): Changed. (relocate_plt_for_entry): Likewise.
2016-04-05[ARC] Fix to pass ld-elf-ehdr_start-shared.Claudiu Zissulescu1-0/+4
bfd/ 2016-04-05 Cupertino Miranda <cmiranda@synopsys.com> * elf32-arc.c (elf_arc_check_relocs): Changed
2016-04-05[ARC] 24 bit reloc and overflow detection fix.Claudiu Zissulescu1-0/+10
bfd/ 2016-04-05 Cupertino Miranda <cmiranda@synopsys.com> * elf32-arc.c (name_for_global_symbol): Changed assert. (get_replace_function): Created.: (struct arc_relocation_data): Changed to signed types. (defines S, L, P, PDATA): Casted to signed type. (defines SECTSTART, _SDA_BASE_, TLS_REL): Likewise. (PRINT_DEBUG_RELOC_INFO_BEFORE): Changed. (arc_do_relocation): Changed. include/ 2016-04-05 Cupertino Miranda <cmiranda@synopsys.com> * opcode/arc-func.h (replace_bits24): Changed. (replace_bits24_be): Created.
2016-04-05[ARC] Dynamic relocs verification for dynindx == -1.Claudiu Zissulescu1-0/+9
bfd/ 2016-04-05 Cupertino Miranda <cmiranda@synopsys.com> * elf32-arc.c (name_for_global_symbol): Added assert to check for symbol index. (elf_arc_relocate_section): Added and changed asserts, validating the synamic symbol index. (elf_arc_finish_dynamic_symbol): Do not fill the dynamic relocation if symbol has dynindx set to -1.
2016-04-05ELF/LD: Avoid producing hidden and internal dynamic symbolsMaciej W. Rozycki1-0/+6
Always turn hidden and internal symbols which have a dynamic index into local ones. This is required by the the ELF gABI[1]: "A hidden symbol contained in a relocatable object must be either removed or converted to STB_LOCAL binding by the link-editor when the relocatable object is included in an executable file or shared object." "An internal symbol contained in a relocatable object must be either removed or converted to STB_LOCAL binding by the link-editor when the relocatable object is included in an executable file or shared object." The ELF linker usually respects this requirement, however in the case where a dynamic symbol has been preallocated due to a reference of the default export class aka visibility from the object being linked, and then merged with a hidden or internal symbol definition from within the same object, then the original export class is carried over to the output dynamic symbol table, because while merging the generic ELF linker only converts affected dynamic symbols to local when they are defined or referenced by the object being linked and a dynamic object involved in the link both at a time. The dynamic symbol produced confuses then the dynamic loader at the run time -- the hidden or internal export class is ignored and the symbol follows preemption rules as with the default export class. In the MIPS target it happens when `mips_elf_record_global_got_symbol' creates a dynamic symbol when a call relocation is encountered. Additionally if the undefined symbol referred by such a relocation does specify the intended export class, then a local dynamic symbol is created instead, which is harmless and allowed, but useless. Normally no local dynamic symbols are created, except for a single dummy one at the beginning. Correct the problem by removing the extra check for a dynamic symbol being defined or referenced by the object being linked and a dynamic object involved in the link both at a time. The test cases included cover the internal and hidden symbol cases, as well as a protected symbol for a reference, the handling of which is unchanged by this fix. Both cases described above are covered, that is where an internal or hidden dynamic symbol is produced and where a local one is. NB this change affects CRIS results where some symbols in the static table produced in a final link are now converted from STV_HIDDEN to STB_LOCAL. This happens whenever the `elf_backend_hide_symbol' handler is called, so the affected symbols must have been chosen for entering into the dynamic symbol table, except in these test cases no such symbol table is produced. In fully linked binaries the static symbol table is only used for debugging though, so such a change is fine. References: [1] "System V Application Binary Interface - DRAFT - 24 April 2001", The Santa Cruz Operation, Inc., "Symbol Table", <http://www.sco.com/developers/gabi/2001-04-24/ch4.symtab.html> bfd/ PR ld/19908 * elflink.c (elf_link_add_object_symbols): Always turn hidden and internal symbols which have a dynamic index into local ones. ld/ PR ld/19908 * testsuite/ld-cris/tls-e-20.d: Adjust for hidden symbol handling fix. * testsuite/ld-cris/tls-e-20a.d: Likewise. * testsuite/ld-cris/tls-e-21.d: Likewise. * testsuite/ld-cris/tls-e-23.d: Likewise. * testsuite/ld-cris/tls-e-80.d: Likewise. * testsuite/ld-cris/tls-gd-3h.d: Likewise. * testsuite/ld-cris/tls-leie-19.d: Likewise. * testsuite/ld-mips-elf/export-class-ref-lib.sd: New test. * testsuite/ld-mips-elf/export-hidden-ref.sd: New test. * testsuite/ld-mips-elf/export-internal-ref.sd: New test. * testsuite/ld-mips-elf/export-protected-ref.sd: New test. * testsuite/ld-mips-elf/export-class-ref-f0.s: New test source. * testsuite/ld-mips-elf/export-class-ref-f1.s: New test source. * testsuite/ld-mips-elf/export-class-ref-f2.s: New test source. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-04-04Ignore DWARF debug information with a version of 0 - assume that it is padding.Nick Clifton1-0/+6
PR 19872 bfd * dwarf2.c (parse_comp_unit): Skip warning about unrecognised version number if the version is zero. bin * dwarf.c (display_debug_aranges): Skip warning about unrecognised version number if the version is zero.
2016-04-01PR19886, --as-needed regressionAlan Modra1-0/+6
This isn't perfect in checking whether libraries will be loaded since elf_link_add_object_symbols doesn't recurse down DT_NEEDED links. (That happens later in ld/emultempl/elf32.em after_open.) So in effect this recursive check really only looks one level down the DT_NEEDED tree. Which is enough for the most common case, and libc.so/ld.so in particular. PR 19886 * elflink.c (on_needed_list): Recursively check needed status. (elf_link_add_object_symbols): Adjust.
2016-03-30Fix a seg-fault in the AVR linker.Senthil Kumar Selvaraj1-0/+5
* elf32-avr.c (avr_elf32_load_records_from_section): Free internal_relocs only if they aren't cached.
2016-03-29Relax assertion in BFIN linker to allow for discard GOT relocs.Nick Clifton1-0/+7
PR 17334 * elf32-bfin.c (elf32_bfinfdpic_finish_dynamic_sections): Relax assertion on the size of the got section to allow it to be bigger than the number of relocs.
2016-03-29PE/COFF regression in base of code and data calculationToni Spets1-0/+6
PR 19878 * coffcode.h (coff_write_object_contents): Revert accidental 2014-11-10 change.
2016-03-22Attribute with DW_FORM_flag_presentAlan Modra1-0/+6
PR 19850 * dwarf2.c (read_attribute_value): Skip info_ptr check for DW_FORM_flag_present.
2016-03-22Restore v850-rh850 as a recognised v850 architecture name for backwards ↵Nick Clifton1-0/+3
compatibility. bfd * cpu-v850_rh850.c (arch_info_struct): Restore v850-rh850 as an architecture name for backwards compatibility.
2016-03-22Fix possible unbounded stack use in peXXigen.cNick Clifton1-0/+3
* peXXigen.c (_bfd_XXi_write_codeview_record): Fix possible unbounded stack use.
2016-03-22Add -Wstack-usage to the gcc warning flags list, but only if using a ↵Nick Clifton1-0/+6
sufficiently recent version of gcc. bfd * warning.m4 (GCC_WARN_CFLAGS): Only add -Wstack-usage if using a sufficiently recent version of GCC. * configure: Regenerate. others * configure: Regenerate.
2016-03-22Binutils fails to build with -O0Alan Modra1-0/+5
PR 19851 * plugin.c (try_load_plugin): Avoid -Wstack-usage warning.
2016-03-21arc: Add nps400 machine type, and assembler flag.Andrew Burgess1-0/+9
This commit introduces the nps400 machine type as a variant of arc. There's a new flag in the assembler to select this machine type. All other changes are just adding handling of the new machine type into the relevant places. The nps400 is an arc700 variant with some vendor specific instructions added into the instruction set. This commit does not add any of the new instructions, this is just laying the groundwork for future commits. However, in preparation for these new instructions a new opcode define for nps400 has been added to include/opcode/arc.h, this new opcode define is used in the assembler and disassembler along with the existing define for arc700 such that when assembling and disassembling for nps400 the user will have access to all arc700 instructions and all the nps400 vendor extension instructions. bfd/ChangeLog: * archures.c (bfd_mach_arc_nps400): Define. * bfd-in2.h: Regenerate. * cpu-arc.c (arch_info_struct): New entry for nps400, renumber some existing entries to make space. * elf32-arc.c (arc_elf_object_p): Add nps400 case. (arc_elf_final_write_processing): Likewise. binutils/ChangeLog: * readelf.c (decode_ARC_machine_flags): Handle nps400. gas/ChangeLog: * config/tc-arc.c (cpu_types): Add nps400 entry. (check_zol): Handle nps400. include/ChangeLog: * elf/arc.h (E_ARC_MACH_NPS400): Define. * opcode/arc.h (ARC_OPCODE_NPS400): Define. opcodes/ChangeLog: * arc-dis.c (print_insn_arc): Handle nps400.
2016-03-21arc: Remove EF_ARC_CPU_GENERIC constant.Andrew Burgess1-0/+7
The constant EF_ARC_CPU_GENERIC is defined in the include/elf/arc.h file, and is used in a few places in binutils, however, this constant should never make it into the elf header flags; we always set a valid cpu type in the assembler, which should then be copied over during linking. There are some non-gnu arc compilers that don't write an architecture type into the e_flags field, instead leaving the field as 0, which is the EF_ARC_CPU_GENERIC value. This non-gnu compiler uses the machine type to distinguish between the old and newer arc architectures, setting the machine type to EM_ARC_COMPACT for old arc600, arc601, and arc700 architectures, while using EM_ARC_COMPACT2 for newer arcem and archs architectures. Previously when displaying the machine flags for an older EM_ARC_COMPACT machine, if the e_flags had not been filled in, then we relied on the default case statement to display the message "Generic ARCompact", while in the EM_ARC_COMPACT2 case we specifically handled EF_ARC_CPU_GENERIC to print "ARC Generic", leaving the default case to print a message about unrecognised cpu flag. After this commit EF_ARC_CPU_GENERIC has been removed, for both machine types EM_ARC_COMPACT and EM_ARC_COMPACT2 we now rely on the default case statement to handle the situation where the e_flags has not been filled in. The message displayed is now "Unknown ARCompact" (for older arc architectures) and "Unknown ARC" (for the newer architectures). The switch from "Generic" to "Unknown" in the message string is for clarity, calling the file "Generic" can give the impression that the file is compiled for a common sub-set of the architectures, and would therefore run on any type of machine (or at least any type of new or old machine depending on if the machine type is ARC or ARCv2). However, this was not what "Generic" meant, it really meant "Unknown", so that's what we now say. As part of the merging of the readelf flag reading code, I have unified the strings used in displaying the ELF ABI. This means that for older arc machines (arc600, arc601, and arc700) the string used for the original ABI, and ABIv2 have changed, the current ABIv3 remains the same. For the newer architectures (arcem and archs) the abi strings remain unchanged in all cases. bfd/ChangeLog: * elf32-arc.c (arc_elf_print_private_bfd_data): Remove use of EF_ARC_CPU_GENERIC. (arc_elf_final_write_processing): Don't bother setting cpu field in e_flags, this will have been set elsewhere. binutils/ChangeLog: * readelf.c (get_machine_flags): Move arc processing into... (decode_ARC_machine_flags): ... new function. Remove use of EF_ARC_CPU_GENERIC, change default case from "generic arc" to "unknown arc". Merged ABI printing between two machine types. gas/ChangeLog: * config/tc-arc.c (arc_select_cpu): Remove use of EF_ARC_CPU_GENERIC. include/ChangeLog: * elf/arc.h (EF_ARC_CPU_GENERIC): Delete. Update related comment.
2016-03-21arc: Remove duplicated constant in include/elf/arc.hAndrew Burgess1-0/+5
In the include/elf/arc.h there are two constants that mask out the machine architecture field. One is used lots (EF_ARC_MACH_MSK), the other is used only once (EF_ARC_MACH). Remove EF_ARC_MACH. bfd/ChangeLog: * elf32-arc.c (arc_elf_final_write_processing): Switch to using EF_ARC_MACH_MSK. include/ChangeLog: * elf/arc.h (EF_ARC_MACH): Delete. (EF_ARC_MACH_MSK): Remove out of date comment.
2016-03-21Remove use of alloca.Nick Clifton1-0/+14
bfd * warning.m4 (GCC_WARN_CFLAGS): Add -Wstack-usage=262144 * configure: Regenerate. * elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Replace use of alloca with call to xmalloc. * elf32-nds32.c: Likewise. * elf64-hppa.c: Likewise. * elfxx-mips.c: Likewise. * pef.c: Likewise. * pei-x86_64.c: Likewise. * som.c: Likewise. * xsym.c: Likewise. binutils * dlltool.c: Replace use of alloca with call to xmalloc. * dllwrap.c: Likewise. * nlmconv.c: Likewise. * objdump.c: Likewise. * resrc.c: Likewise. * winduni.c: Likewise. * configure: Regenerate. gas * atof-generic.c: Replace use of alloca with call to xmalloc. * cgen.c: Likewise. * dwarf2dbg.c: Likewise. * macro.c: Likewise. * remap.c: Likewise. * stabs.c: Likewise. * symbols.c: Likewise. * config/obj-elf.c: Likewise. * config/tc-aarch64.c: Likewise. * config/tc-arc.c: Likewise. * config/tc-arm.c: Likewise. * config/tc-avr.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-mips.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-nds32.c: Likewise. * config/tc-ppc.c: Likewise. * config/tc-sh.c: Likewise. * config/tc-tic30.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-xstormy16.c: Likewise. * config/te-vms.c: Likewise. * configure: Regenerate. ld * emultempl/msp430.em: Replace use of alloca with call to xmalloc. * plugin.c: Likewise. * pe-dll.c: Likewise.
2016-03-15Bind defined symbol locally in PIEH.J. Lu1-0/+9
Symbols defined in PIE should be bound locally, the same as -shared -Bsymbolic. bfd/ PR ld/19827 * elf32-i386.c (elf_i386_check_relocs): Bind defined symbol locally in PIE. (elf_i386_relocate_section): Likewise. * elf64-x86-64.c (elf_x86_64_check_relocs): Likewise. (elf_x86_64_relocate_section): Likewise. ld/ PR ld/19827 * testsuite/ld-i386/i386.exp: Run PR ld/19827 tests. * testsuite/ld-x86-64/x86-64.exp: Likewise. * testsuite/ld-i386/pr19827.rd: New file. * testsuite/ld-i386/pr19827a.S: Likewise. * testsuite/ld-i386/pr19827b.S: Likewise. * testsuite/ld-x86-64/pr19827.rd: Likewise. * testsuite/ld-x86-64/pr19827a.S: Likewise. * testsuite/ld-x86-64/pr19827b.S: Likewise.
2016-03-15Add -z noreloc-overflow option to x86-64 ldH.J. Lu1-0/+7
Add -z noreloc-overflow command-line option to the x86-64 ELF linker to disable relocation overflow check. This can be used to avoid relocation overflow check if there will be no dynamic relocation overflow at run-time. bfd/ PR ld/19807 * elf64-x86-64.c (elf_x86_64_relocate_section): Check no_reloc_overflow_check to diable R_X86_64_32/R_X86_64_32S relocation overflow check. include/ PR ld/19807 * bfdlink.h (bfd_link_info): Add no_reloc_overflow_check. ld/ PR ld/19807 * Makefile.am (ELF_X86_DEPS): Add $(srcdir)/emulparams/reloc_overflow.sh. * Makefile.in: Regenerated. * NEWS: Mention -z noreloc-overflow. * ld.texinfo: Document -z noreloc-overflow. * emulparams/elf32_x86_64.sh: Source ${srcdir}/emulparams/reloc_overflow.sh. * emulparams/elf_x86_64.sh: Likewise. * emulparams/reloc_overflow.sh: New file. * testsuite/ld-x86-64/pr19807-1.s: New file. * testsuite/ld-x86-64/pr19807-1a.d: Likewise. * testsuite/ld-x86-64/pr19807-1b.d: Likewise. * testsuite/ld-x86-64/pr19807-2.s: Likewise. * testsuite/ld-x86-64/pr19807-2a.d: Likewise. * testsuite/ld-x86-64/pr19807-2b.d: Likewise. * testsuite/ld-x86-64/pr19807-2c.d: Likewise. * testsuite/ld-x86-64/pr19807-2d.d: Likewise. * testsuite/ld-x86-64/pr19807-2e.d: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run PR ld/19807 tests.
2016-03-14Regenerate bfd-in2.hH.J. Lu1-0/+4
* bfd-in2.h: Regenerated.
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