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2014-06-03Support fusion for ELFv2 stubsAlan Modra2-4/+8
Power8 fuses addis,addi and addis,ld sequences when the target of the addis is the same as the addi/ld. Thus addis r12,r2,xxx@ha addi r12,r12,xxx@l / ld r12,xxx@l(r12) is faster than addis r11,r2,xxx@ha addi r12,r11,xxx@l / ld r12,xxx@l(r11) So use the form that allows fusion in plt call and branch stubs. bfd/ * elf64-ppc.c (ADDIS_R12_R2): Define. (build_plt_stub): Support fusion on ELFv2 stub. (ppc_build_one_stub): Likewise for plt branch stubs. gold/ * powerpc.cc (addis_12_2): Define. (Stub_table::do_write): Support fusion on ELFv2 stubs. ld/testsuite/ * ld-powerpc/elfv2exe.d: Update for changed plt call stubs. gdb/ * ppc64-tdep.c (ppc64_standard_linkage8): New. (ppc64_skip_trampoline_code): Recognise ELFv2 stub supporting fusion.
2014-05-28Add objcopy stage between assembly and linking for run_dump_testmfortune2-0/+42
ld/testsuite/ * lib/ld-lib.exp: Add objcopy_objects command to run_dump_test. This allows each input object to be optionally run through objcopy before linking.
2014-05-20ld/aarch64: xfail non-PIC shared object tests on aarch64Will Newton2-0/+8
aarch64 does not support building non-PIC shared objects, so mark tests for these as xfail. ld/testsuite/ChangeLog: 2014-05-20 Will Newton <will.newton@linaro.org> * ld-shared/shared.exp: Mark non-PIC shared object tests as xfail on aarch64.
2014-05-19Don't link FreeBSD tests with -ldl.Andreas Tobler3-14/+29
* ld-elf/shared.exp: Introduce the extralibs variable to control the libraries to be linked. Don't link -ldl on *-*-freebsd*. * ld-bootstrap/bootstrap.exp: Do not add -ldl to the extralibs on *-*-freebsd*.
2014-05-10Fix freeing of link_info.hashHans-Peter Nilsson10-0/+107
ld: * ldlang.c (lang_finish): Don't call bfd_link_hash_table_free here. (output_bfd_hash_table_free_fn): New variable. (open_output): Save the _bfd_link_hash_table_free function for the output_bfd into output_bfd_hash_table_free_fn. * ldmain.c (ld_cleanup): If set, call output_bfd_hash_table_free_fn on link_info.hash. * ldlang.h (output_bfd_hash_table_free_fn): Declare. ld/testsuite: * ld-mmix/wrap1.d, ld-mmix/wrap1a.s, ld-mmix/wrap1b.s, ld-mmix/wrap1c.s, ld-mmix/wrap2.d, ld-mmix/wrap3.d, ld-mmix/wrap3a.s, ld-mmix/wrap3b.s, ld-mmix/wrap4.d: New tests.
2014-05-09Properly display extra data/address size prefixesH.J. Lu8-26/+35
X86 disassembler checks data and address size prefixes when displaying instruction mnemonic and operands. For the extra data and address size prefixes, their names depend only on the address mode, not the data and address size prefixes. This patch changes x86 disassembler not to check the data and address size prefix when printing extra data and address size prefixes. gas/testsuite/ * gas/i386/nops-1-core2.d: Replace data32 with data16. * gas/i386/nops-4a-i686.d: Likewise. * gas/i386/nops-5-i686.d: Likewise. * gas/i386/nops-5.d: Likewise. * gas/i386/x86-64-cbw-intel.d: Likewise. * gas/i386/x86-64-cbw.d: Likewise. * gas/i386/x86-64-io-intel.d: Likewise. * gas/i386/x86-64-io-suffix.d: Likewise. * gas/i386/x86-64-io.d: Likewise. * gas/i386/x86-64-nops-1-core2.d: Likewise. * gas/i386/x86-64-nops-1-g64.d: Likewise. * gas/i386/x86-64-nops-1-nocona.d: Likewise. * gas/i386/x86-64-nops-1.d: Likewise. * gas/i386/x86-64-nops-2.d: Likewise. * gas/i386/x86-64-nops-3.d: Likewise. * gas/i386/x86-64-nops-4-core2.d: Likewise. * gas/i386/x86-64-nops-4.d: Likewise. * gas/i386/x86-64-nops-5-k8.d: Likewise. * gas/i386/x86-64-nops-5.d: Likewise. * gas/i386/x86-64-stack-intel.d: Likewise. * gas/i386/x86-64-stack-suffix.d: Likewise. * gas/i386/x86-64-stack.d: Likewise. * gas/i386/ilp32/x86-64-cbw-intel.d: Likewise. * gas/i386/ilp32/x86-64-cbw.d: Likewise. * gas/i386/ilp32/x86-64-io-intel.d: Likewise. * gas/i386/ilp32/x86-64-io-suffix.d: Likewise. * gas/i386/ilp32/x86-64-io.d: Likewise. * gas/i386/ilp32/x86-64-nops-1-core2.d: * gas/i386/ilp32/x86-64-nops-1-nocona.d: Likewise. * gas/i386/ilp32/x86-64-nops-1.d: Likewise. * gas/i386/ilp32/x86-64-nops-2.d: Likewise. * gas/i386/ilp32/x86-64-nops-3.d: Likewise. * gas/i386/ilp32/x86-64-nops-4-core2.d: Likewise. * gas/i386/ilp32/x86-64-nops-4.d: Likewise. * gas/i386/ilp32/x86-64-nops-5-k8.d: Likewise. * gas/i386/ilp32/x86-64-nops-5.: Likewise. * gas/i386/ilp32/x86-64-stack-intel.d: Likewise. * gas/i386/ilp32/x86-64-stack-suffix.: Likewise. * gas/i386/ilp32/x86-64-stack.d: Likewise. ld/testsuite/ * ld-x86-64/tlsbin.dd: Replace data32 with data16. * ld-x86-64/tlsdesc-nacl.pd: Likewise. * ld-x86-64/tlsgdesc.dd: Likewise. * ld-x86-64/tlsld1.dd: Likewise. * ld-x86-64/tlsld3.dd: Likewise. * ld-x86-64/tlspic.dd: Likewise. opcodes/ 2014-05-09 H.J. Lu <hongjiu.lu@intel.com> * i386-dis.c (ADDR16_PREFIX): Removed. (ADDR32_PREFIX): Likewise. (DATA16_PREFIX): Likewise. (DATA32_PREFIX): Likewise. (prefix_name): Updated. (print_insn): Simplify data and address size prefixes processing.
2014-05-08Use signed data type for R_XTENSA_DIFF* relocation offsets.Volodymyr Arbatov4-0/+100
R_XTENSA_DIFF relocation offsets are in fact signed. Treat them as such. Add testcase that examines ld behaviour on R_XTENSA_DIFF relocation changing sign during relaxation. 2014-05-02 Volodymyr Arbatov <arbatov@cadence.com> David Weatherford <weath@cadence.com> Max Filippov <jcmvbkbc@gmail.com> bfd/ * elf32-xtensa.c (relax_section): treat R_XTENSA_DIFF* relocations as signed. gas/ * config/tc-xtensa.c (md_apply_fix): mark BFD_RELOC_XTENSA_DIFF* fixups as signed. ld/testsuite/ * ld-xtensa/diff_overflow.exp, * ld-xtensa/diff_overflow1.s, * ld-xtensa/diff_overflow2.s: Add test for DIFF* relocation signedness and overflow checking.
2014-05-02ld/testsuite:Hans-Peter Nilsson8-1/+94
* ld-mmix/sec-11.d, ld-mmix/sec-11.ld, ld-mmix/sec-10.s, ld-mmix/sec-10.d, ld-mmix/b-offlocmis.s, ld-mmix/sec-12.d: New tests. * ld-mmix/b-offloc.s: Correct address in comment.
2014-04-23ld/arm: Fix testsuite failures for armeb-linux-eabiWill Newton25-132/+158
Fix all the cases where endianness needs to be taken into account in the ARM ld dump tests. ld/testsuite/ChangeLog: 2014-04-23 Will Newton <will.newton@linaro.org> * ld-arm/arm-no-rel-plt.ld: Remove OUTPUT_FORMAT and SEARCH_DIR commands. * ld-arm/arm-rel32.d: Update regexps to allow test to pass on armeb-linux-eabi configuration. * ld-arm/data-only-map.d: Likewise. * ld-arm/fix-arm1176-off.d: Likewise. * ld-arm/fix-arm1176-on.d: Likewise. * ld-arm/ifunc-1.gd: Likewise. * ld-arm/ifunc-10.gd: Likewise. * ld-arm/ifunc-11.gd: Likewise. * ld-arm/ifunc-12.gd: Likewise. * ld-arm/ifunc-13.gd: Likewise. * ld-arm/ifunc-14.gd: Likewise. * ld-arm/ifunc-15.gd: Likewise. * ld-arm/ifunc-16.gd: Likewise. * ld-arm/ifunc-17.gd: Likewise. * ld-arm/ifunc-2.gd: Likewise. * ld-arm/ifunc-3.gd: Likewise. * ld-arm/ifunc-4.gd: Likewise. * ld-arm/ifunc-5.gd: Likewise. * ld-arm/ifunc-6.gd: Likewise. * ld-arm/ifunc-7.gd: Likewise. * ld-arm/ifunc-8.gd: Likewise. * ld-arm/ifunc-9.gd: Likewise. * ld-arm/jump-reloc-veneers-long.d: Likewise. * ld-arm/reloc-boundaries.d: Likewise.
2014-04-22Add tests for PR ld/16846H.J. Lu5-0/+35
PR ld/16846 * ld-plugin/lto.exp (lto_link_tests): Add tests for PR ld/16846. * ld-plugin/pr16846a.c: New file. * ld-plugin/pr16846b.c: Likewise. * ld-plugin/pr16846c.c: Likewise.
2014-04-22Remove support for the (deprecated) openrisc and or32 configurations and replaceChristian Svensson27-29/+57
with support for the new or1k configuration.
2014-04-17This patch causes local GOT entries addressed via a 16-bit index toKwok Cheung Yeung6-508/+515
be placed towards the front of local GOT space, while entries addressed via a 32-bit index are placed towards the rear. Provided that there are fewer than ~16K local GOT entries addressed via a 16-bit index in total, this should eliminate any relocation overflows caused by such GOT entries being allocated beyond the addressable range. bfd/ * elfxx-mips.c (struct mips_got_info): Delete assigned_gotno field. Add assigned_low_gotno and assigned_high_gotno fields. (mips_elf_create_local_got_entry): Update out-of-space condition. Set index of new GOT entry to assigned_low_gotno if required by the current relocation, else set it to assigned_high_gotno. (mips_elf_set_global_gotidx): Replace uses of assigned_gotno with assigned_low_gotno. (mips_elf_multi_got): Initialize assigned_low_gotno and assigned_high_gotno in secondary GOTs. Use assigned_low_gotno in place of assigned_gotno when handling global GOT entries. (mips_elf_lay_out_got): Initialize assigned_low_gotno and assigned_high_gotno. (_bfd_mips_elf_finish_dynamic_sections): Account for a possible gap in the middle of local GOT space. ld/testsuite/ * ld-mips-elf/elf-rel-xgot-n32.d: Update for new GOT layout. * ld-mips-elf/elf-rel-xgot-n32-embed.d: Likewise. * ld-mips-elf/elf-rel-xgot-n64.d: Likewise. * ld-mips-elf/elf-rel-xgot-n64-embed.d: Likewise. * ld-mips-elf/elf-rel-xgot-n64-linux.d: Likewise.
2014-04-15[AArch64] Fix off by one error in instruction relaxation mask.Marcus Shawcroft2-1/+6
The AArch64 TLSDESC to IE relaxation code uses a bit mask intended to ensure that destination register in a relaxed ldr instruction is always X0. The mask has an off by one error resulting in the most significant bit of the destination register being retained in the relaxed instruction. The issue generally appears when the compiler emits TLS accesses code under high register pressure resulting in a broken code sequence.
2014-04-10bfd/ChangeLogDenis Chertykov5-0/+76
* elf32-avr.c: Add DIFF relocations for AVR. (avr_final_link_relocate): Handle the DIFF relocs. (bfd_elf_avr_diff_reloc): New. (elf32_avr_is_diff_reloc): New. (elf32_avr_adjust_diff_reloc_value): Reduce difference value. (elf32_avr_relax_delete_bytes): Recompute difference after deleting bytes. * reloc.c: Add BFD_RELOC_AVR_DIFF8/16/32 relocations gas/ChangeLog * config/tc-avr.c: Add new flag mlink-relax. (md_show_usage): Add flag and help text. (md_parse_option): Record whether link relax is turned on. (relaxable_section): New. (avr_validate_fix_sub): New. (avr_force_relocation): New. (md_apply_fix): Generate DIFF reloc. (avr_allow_local_subtract): New. * config/tc-avr.h (TC_LINKRELAX_FIXUP): Define to 0. (TC_FORCE_RELOCATION): Define. (TC_FORCE_RELOCATION_SUB_SAME): Define. (TC_VALIDATE_FIX_SUB): Define. (avr_force_relocation): Declare. (avr_validate_fix_sub): Declare. (md_allow_local_subtract): Define. (avr_allow_local_subtract): Declare. gas/testsuite/ChangeLog * gas/avr/diffreloc_withrelax.d: New testcase. * gas/avr/noreloc_withoutrelax.d: Likewise. * gas/avr/relax.s: Likewise. include/ChangeLog * elf/avr.h: Add new DIFF relocs. ld/testsuite/ChangeLog * ld-avr/norelax_diff.d: New testcase. * ld-avr/relax_diff.d: Likewise. * ld-avr/relax.s: Likewise.
2014-04-08Add support for generating and inserting build IDs into COFF binaries.Jon TURNEY5-7/+5
* peXXigen.c (pe_print_debugdata): New function: Displays the contents of the debug directory and decodes codeview entries. (_bfd_XXi_swap_debugdir_in, _bfd_XXi_swap_debugdir_out) (_bfd_XXi_slurp_codeview_record, _bfd_XXi_write_codeview_record): Add functions for reading and writing debugdir and codeview records. * libpei.h (_bfd_XXi_swap_debugdir_in, _bfd_XXi_swap_debugdir_out) (_bfd_XXi_write_codeview_record): Add prototypes and macros. * libcoff-in.h (pe_tdata): Add build-id data. * libcoff.h: Regenerate. * coffcode.h (coff_write_object_contents): Run build_id after_write_object_contents hook. * pe.h (external_IMAGE_DEBUG_DIRECTORY, _CV_INFO_PDB70) (_CV_INFO_PDB20): Add structures and constants for debug directory and codeview records. * internal.h (internal_IMAGE_DEBUG_DIRECTORY, CODEVIEW_INFO): Add structures and constants for internal representation of debug directory and codeview records. * emultempl/elf32.em (id_note_section_size, read_hex, write_build_id): Move code for parsing build-id option and calculating the build-id to... * ldbuildid.c: New file. * ldbuildid.h: New file. * Makefile.am (CFILES, HFILES, OFILES, ld_new_SOURCES): Add new files. * Makefile.in: Regenerate. * ld.texinfo: Update --build-id description to mention COFF support. * NEWS: Mention support for COFF build ids. * emultempl/pe.em (gld${EMULATION_NAME}_handle_option): (pecoff_checksum_contents, write_build_id, setup_build_id) (gld_${EMULATION_NAME}_after_open): Handle and implement build-id option. * emultempl/pep.em: Likewise.
2014-04-07Fix spurious failures in ld-plugin/lto.expAndreas Schwab2-4/+10
* ld-plugin/lto.exp: Make "-Wp," prefix optional when filtering out _FORTIFY_SOURCE. ("Build libdummy.a 9", "PR ld/12696"): Mark as c++.
2014-04-04Pad sections according to current script FILL.Alan Modra7-0/+65
When aligning input sections, we are supposed to take the fill pattern from a FILL statement, if there is one in the output section statement. ld/ * ldlang.c (lang_size_sections_1 <lang_input_section_enum>): Use current "fill", not "output_section_statement->fill". ld/testsuite/ * ld-scripts/fill.d, * ld-scripts/fill.t, * ld-scripts/fill_0.s, * ld-scripts/fill_1.s, * ld-scripts/fill_2.s: New test. * ld-scripts/data.exp: Run it.
2014-03-31[AArch64] Fixup ld-aarch64/eh-frame.d expected PC range.Marcus Shawcroft2-2/+6
Fix the expected output for ld-aarch64/eh-frame.d. This issue was exposed by the recent fix to the output of objdump -Wf here: https://sourceware.org/ml/binutils/2014-03/msg00251.html
2014-03-27Scan all input files for symbol reference warningH.J. Lu2-31/+37
This patch scans all input files for symbol reference warning if the symbol reference doesn't exist in the current input file. ld/ PR ld/16756 * ldmain.c (symbol_warning): New function. (warning_callback): Use it. Scan all input files for a reference to SYMBOL. ld/testsuite/ PR ld/16756 * ld-plugin/lto.exp: Expect filename and line number for PR ld/12760 test.
2014-03-27Add support for limited pretty-printing of ARM PLT entries on eabi and nacl ↵Yury Gribov29-384/+483
targets. * elf32-arm.c (elf32_arm_get_synthetic_symtab): Add new callback. (elf32_arm_nacl_plt_sym_val): Likewise. (elf32_arm_plt0_size): Add helper function. (elf32_arm_plt_size): Likewise. * ld-arm/arm-app-abs32.d: Updated test. * ld-arm/arm-app.d: Likewise. * ld-arm/arm-lib-plt32.d: Likewise. * ld-arm/arm-lib.d: Likewise. * ld-arm/armthumb-lib.d: Likewise. * ld-arm/cortex-a8-fix-b-plt.d: Likewise. * ld-arm/cortex-a8-fix-bcc-plt.d: Likewise. * ld-arm/cortex-a8-fix-bl-plt.d: Likewise. * ld-arm/cortex-a8-fix-bl-rel-plt.d: Likewise. * ld-arm/cortex-a8-fix-blx-plt.d: Likewise. * ld-arm/farcall-mixed-app-v5.d: Likewise. * ld-arm/farcall-mixed-app.d: Likewise. * ld-arm/farcall-mixed-lib-v4t.d: Likewise. * ld-arm/farcall-mixed-lib.d: Likewise. * ld-arm/ifunc-10.dd: Likewise. * ld-arm/ifunc-14.dd: Likewise. * ld-arm/ifunc-15.dd: Likewise. * ld-arm/ifunc-3.dd: Likewise. * ld-arm/ifunc-4.dd: Likewise. * ld-arm/ifunc-7.dd: Likewise. * ld-arm/ifunc-8.dd: Likewise. * ld-arm/ifunc-9.dd: Likewise. * ld-arm/long-plt-format.d: Likewise. * ld-arm/mixed-app-v5.d: Likewise. * ld-arm/mixed-app.d: Likewise. * ld-arm/mixed-lib.d: Likewise. * ld-arm/thumb2-bl-undefweak.d: Likewise. * ld-arm/thumb2-bl-undefweak1.d: Likewise.
2014-03-27Referencing a function's address on PowerPC64 ELFv2Alan Modra9-0/+68
ELFv2 needs to create plt entries in a non-PIC executable for an address reference to a function defined in a shared object. It's possible that an object file has no features that distinguish it as ELFv1 or ELFv2, eg. an object only containing data. Such files need to be handled like those that are known to be ELFv2. However, this unnecessarily creates plt entries for the analogous ELFv1 case, so arrange to set output abi version earlier, and use the output abi version to further distinguish ambiguous input files. bfd/ * elf64-ppc.c (ppc64_elf_check_relocs): Account for possibly needed plt entries when taking the address of functions for abiversion == 0 (ie. unknown) as well as abiversion == 2. Move opd setup and abiversion checks to.. (ppc64_elf_before_check_relocs): ..here. Renamed from ppc64_elf_process_dot_syms. Set output abiversion from input and input abiversion from output, if either is not set. (ppc64_elf_merge_private_bfd_data): Don't merge flags here. (elf_backend_check_directives): Update. ld/testsuite/ * ld-powerpc/startv1.s, * ld-powerpc/startv2.s, * ld-powerpc/funref.s, * ld-powerpc/funv1.s, * ld-powerpc/funv2.s, * ld-powerpc/ambiguousv1.d, * ld-powerpc/ambiguousv2.d: New test files. * ld-powerpc/powerpc.exp: Run new tests.
2014-03-25bfd/elfnn-aarch64.c: Fix calculation of DT_RELASZWill Newton4-0/+35
The current code subtracts the size of the output section containing relplt from RELASZ. In some cases this will be the same output section as the dynamic relocs causing a value of zero to be output. Calculating the size from input sections seems to make more sense. bfd/ChangeLog: 2014-03-25 Will Newton <will.newton@linaro.org> * elfnn-aarch64.c (elfNN_aarch64_finish_dynamic_sections): Set value of DT_PLTRELSZ and DT_RELASZ based on the size of input sections rather than output sections. ld/testsuite/ChangeLog: 2014-03-25 Will Newton <will.newton@linaro.org> * ld-aarch64/aarch64-elf.exp: Add relasz dump test. * ld-aarch64/relasz.d: New file. * ld-aarch64/relasz.s: Likewise.
2014-03-20gas/Richard Sandiford2-1/+5
* config/tc-mips.h (DIFF_EXPR_OK, CFI_DIFF_EXPR_OK): Define. * config/tc-mips.c (md_pcrel_from): Remove error message. (md_apply_fix): Convert PC-relative BFD_RELOC_32s to BFD_RELOC_32_PCREL. Report a specific error message for unhandled PC-relative expressions. Handle BFD_RELOC_8. gas/testsuite/ * gas/all/gas.exp: Remove XFAIL of forward.d for MIPS. * gas/mips/pcrel-1.s, gas/mips/pcrel-1.d, gas/mips/pcrel-2.s, gas/mips/pcrel-2.d, gas/mips/pcrel-3.s, gas/mips/pcrel-3.l, gas/mips/pcrel-4.s, gas/mips/pcrel-4-32.d, gas/mips/pcrel-4-n32.d, gas/mips/pcrel-4-64.d: New tests. * gas/mips/mips.exp: Run them. * gas/mips/lui-2.l: Tweak error message for line 7. ld/testsuite/ * ld-elf/merge.d: Remove MIPS XFAIL.
2014-03-20bfd/elf32-arm.c: Set st_value to zero for undefined symbolsWill Newton2-2/+6
Unless pointer_equality_needed is set then set st_value to be zero for undefined symbols. bfd/ChangeLog: 2014-03-20 Will Newton <will.newton@linaro.org> PR ld/16715 * elf32-arm.c (elf32_arm_check_relocs): Set pointer_equality_needed for absolute references within executable links. (elf32_arm_finish_dynamic_symbol): Set st_value to zero unless pointer_equality_needed is set. ld/testsuite/ChangeLog: 2014-03-20 Will Newton <will.newton@linaro.org> * ld-arm/ifunc-14.rd: Update symbol values.
2014-03-19Fix RX linker testsuite failures by making the assembler use conventional ↵Nick Clifton2-0/+10
section names. * config/default.exp (ASFLAGS): For the RX target add: -muse-conventional-section-names.
2014-03-15Correct ld-powerpc/vle-reloc-2 testAlan Modra2-4/+8
* ld-powerpc/vle-reloc-3.d: Remove addresses.
2014-03-14Fix overflow handling of VLE_SDA21Alan Modra3-2/+8
bfd/ * elf32-ppc.c (ppc_elf_relocate_section): Correct overflow handling for VLE_SDA21 relocs. ld/testsuite/ * ld-powerpc/vle.ld: Place .PPC.EMB.sdata0 within 32k of 0. * ld-powerpc/vle-reloc-3.d: Update.
2014-03-06Apply ld-arm/gc-hidden-1 to all ELF targets, not just *eabi* targetsRoland McGrath2-8/+15
ld/testsuite/ * ld-arm/gc-hidden-1.d: Remove target, add not-target to match other ELF-only tests in this directory. Loosen regexps so they don't care what the exact addresses are.
2014-03-06Disable --long-plt test for arm-nacl targets.Roland McGrath2-4/+9
ld/testsuite/ * ld-arm/arm-elf.exp (armelftests_common): Move long-plt case ... (armelftests_nonacl): ... here.
2014-03-05Update copyright yearsAlan Modra143-192/+146
2014-03-05Support R_PPC64_ADDR64_LOCALAlan Modra6-0/+98
This adds support for "func@localentry", an expression that returns the ELFv2 local entry point address of function "func". I've excluded dynamic relocation support because that obviously would require glibc changes. include/elf/ * ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define. bfd/ * elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry. (ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL. (ppc64_elf_check_relocs): Likewise. (ppc64_elf_relocate_section): Likewise. * Add BFD_RELOC_PPC64_ADDR64_LOCAL. * bfd-in2.h: Regenerate. * libbfd.h: Regenerate. gas/ * config/tc-ppc.c (ppc_elf_suffix): Support @localentry. (md_apply_fix): Support R_PPC64_ADDR64_LOCAL. ld/testsuite/ * ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files. * ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files. * ld-powerpc/powerpc.exp: Run new test. elfcpp/ * powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define. gold/ * powerpc.cc (Target_powerpc::Scan::local, global): Support R_PPC64_ADDR64_LOCAL. (Target_powerpc::Relocate::relocate): Likewise.
2014-03-03Fix various copyright issuesAlan Modra3-2/+7
binutils/ * README: Add "Copyright Notices" paragraph. gas/ * config/bfin-lex-wrapper.c: Correct copyright date. * config/tc-frv.c: Correct copyright punctuation. * config/tc-ip2k.c: Likewise. * config/tc-iq2000.c: Likewise. * config/tc-mep.c: Likewise. * config/tc-tic4x.c: Likewise. * config/tc-tic4x.h: Likewise. ld/testsuite/ * ld-scripts/phdrs2.exp: Correct copyright punctuation. * ld-v850/v850.exp: Correct copyright typo. opcodes/ * i386-gen.c (process_copyright): Emit copyright notice on one line. gold/ * dwp.cc (print_version): Update copyright year to current.
2014-03-01ld-arm/long-plt-format.d, ld-arm/arm-elf.exp: Adjust for arm-eabi.Yuri Gribov3-11/+15
2014-02-27This patch adds support for ARM PLT entries that support a full 32-bit ↵Yuri Gribov4-1/+33
offset range. Enabled via the use of a new linker command line option: --long-plt. * bfd-in.h: Add export of bfd_elf32_arm_use_long_plt. * bfd-in2.h: Regenerate. * elf32-arm.c (elf32_arm_plt_entry_long): New array. (elf32_arm_link_hash_table_create): Set plt_entry_size to 16 if using long PLT entries. (bfd_elf32_arm_use_long_plt): New function. (elf32_arm_populate_plt_entry): Add support for long PLT entries. * emultempl/armelf.em (OPTION_LONG_PLT): Define. (PARSE_AND_LIST_LONGOPTS): Add long-plt. (PARSE_AND_LIST_OPTIONS): Likewise. (PARSE_AND_LIST_ARGS_CASES): Handle long-plt. * ld.texinfo: Document --long-plt. * ld-arm/long-plt-format.s: New test case. * ld-arm/long-plt-format.d: Expected disassembly. * ld-arm/arm-elf.exp: Run the new test.
2014-02-27This patch adds a default manifest in to the final links performed by the ↵Nick Clifton5-2/+11
Cygwin and MinGW targets. The manifest is necessary in order for the linked binaries to be executed in a Windows 8 environment. The manifest is added using a linker script so that this feature will be compiler-neutral. The resource merging code in the linker means that if an application provides its own manifest then the default manifest will be ignored. * configure.in (all_emul_extra_binaries): New variable. Populated by invoking configure.tgt. (EMUL_EXTRA_BINARIES): New substitution. * configure: Regenerate. * configure.tgt (target_extra_binaries): New variable. Set to default-manifest.o for Cygwin and MinGW targets. * Makefile.am (EMUL_EXTRA_BINARIES): New variable. Initialised by the configure script. (ALL_EMUL_EXTRA_BINARIES): New variable. (default-manifest.o): New rule to build the default manifest. (ld_new_DEPENDENCIES): Add EMUL_EXTRA_BINARIES. (install-data-local): Add EMUL_EXTRA_BINARIES. * Makefile.in: Regenerate. * ld.texinfo: Document default manifest support. * emulparams/i386pe.sh (DEFAULT_MANIFEST): Define. * emulparams/i386pep.sh (DEFAULT_MANIFEST): Define. * emultempl/default-manifest.rc: New file. * scripttempl/pe.sc (R_RSRC): Include DEFAULT_MANIFEST, if defined. * scripttempl/pep.sc (R_RSRC): Likewise. * ld-pe/longsecn-1.d: Allow for extra sections. * ld-pe/longsecn-2.d: Likewise. * ld-pe/longsecn.d: Likewise. * ld-pe/secrel.d: Likewise.
2014-02-21Add file missed from last commit.Alan Modra1-0/+7
2014-02-21Add ppc476 workaround bootstrap testAlan Modra2-2/+15
I was running this by hand to test out --ppc476-workaround. Another bootstrap test doesn't take all that long, so let's add it to the testsuite. * ld-bootstrap/bootstrap.exp: Add ppc476 workaround test. * ld-bootstrap/ppc476.t: New file.
2014-02-19Create the second PLT for BND relocationsH.J. Lu5-0/+88
Intel MPX introduces 4 bound registers, which will be used for parameter passing in x86-64. Bound registers are cleared by branch instructions. Branch instructions with BND prefix will keep bound register contents. This leads to 2 requirements to 64-bit MPX run-time: 1. Dynamic linker (ld.so) should save and restore bound registers during symbol lookup. 2. Change the current 16-byte PLT0: ff 35 08 00 00 00 pushq GOT+8(%rip) ff 25 00 10 00 jmpq *GOT+16(%rip) 0f 1f 40 00 nopl 0x0(%rax) and 16-byte PLT1: ff 25 00 00 00 00 jmpq *name@GOTPCREL(%rip) 68 00 00 00 00 pushq $index e9 00 00 00 00 jmpq PLT0 which clear bound registers, to preserve bound registers. We use 2 new relocations: to mark branch instructions with BND prefix. When linker sees any R_X86_64_PC32_BND or R_X86_64_PLT32_BND relocations, it switches to a different PLT0: ff 35 08 00 00 00 pushq GOT+8(%rip) f2 ff 25 00 10 00 bnd jmpq *GOT+16(%rip) 0f 1f 00 nopl (%rax) to preserve bound registers for symbol lookup and it also creates an external PLT section, .pl.bnd. Linker will create a BND PLT1 entry in .plt: 68 00 00 00 00 pushq $index f2 e9 00 00 00 00 bnd jmpq PLT0 0f 1f 44 00 00 nopl 0(%rax,%rax,1) and a 8-byte BND PLT entry in .plt.bnd: f2 ff 25 00 00 00 00 bnd jmpq *name@GOTPCREL(%rip) 90 nop Otherwise, linker will create a legacy PLT1 entry in .plt: 68 00 00 00 00 pushq $index e9 00 00 00 00 jmpq PLT0 66 0f 1f 44 00 00 nopw 0(%rax,%rax,1) and a 8-byte legacy PLT in .plt.bnd: ff 25 00 00 00 00 jmpq *name@GOTPCREL(%rip) 66 90 xchg %ax,%ax The initial value of the GOT entry for "name" will be set to the the "pushq" instruction in the corresponding entry in .plt. Linker will resolve reference of symbol "name" to the entry in the second PLT, .plt.bnd. Prelink stores the offset of pushq of PLT1 (plt_base + 0x10) in GOT[1] and GOT[1] is stored in GOT[3]. We can undo prelink in GOT by computing the corresponding the pushq offset with GOT[1] + (GOT offset - &GOT[3]) * 2 Since for each entry in .plt except for PLT0 we create a 8-byte entry in .plt.bnd, there is extra 8-byte per PLT symbol. We also investigated the 16-byte entry for .plt.bnd. We compared the 8-byte entry vs the the 16-byte entry for .plt.bnd on Sandy Bridge. There are no performance differences in SPEC CPU 2000/2006 as well as micro benchmarks. Pros: No change to undo prelink in dynamic linker. Only 8-byte memory overhead for each PLT symbol. Cons: Extra .plt.bnd section is needed. Extra 8 byte for legacy branches to PLT. GDB is unware of the new layout of .plt and .plt.bnd. bfd/ * elf64-x86-64.c (elf_x86_64_bnd_plt0_entry): New. (elf_x86_64_legacy_plt_entry): Likewise. (elf_x86_64_bnd_plt_entry): Likewise. (elf_x86_64_legacy_plt2_entry): Likewise. (elf_x86_64_bnd_plt2_entry): Likewise. (elf_x86_64_bnd_arch_bed): Likewise. (elf_x86_64_link_hash_entry): Add has_bnd_reloc and plt_bnd. (elf_x86_64_link_hash_table): Add plt_bnd. (elf_x86_64_link_hash_newfunc): Initialize has_bnd_reloc and plt_bnd. (elf_x86_64_copy_indirect_symbol): Also copy has_bnd_reloc. (elf_x86_64_check_relocs): Create the second PLT for Intel MPX in 64-bit mode. (elf_x86_64_allocate_dynrelocs): Handle the second PLT for IFUNC symbols. Resolve call to the second PLT if it is created. (elf_x86_64_size_dynamic_sections): Keep the second PLT section. (elf_x86_64_relocate_section): Resolve PLT references to the second PLT if it is created. (elf_x86_64_finish_dynamic_symbol): Use BND PLT0 and fill the second PLT entry for BND relocation. (elf_x86_64_finish_dynamic_sections): Use MPX backend data if the second PLT is created. (elf_x86_64_get_synthetic_symtab): New. (bfd_elf64_get_synthetic_symtab): Likewise. Undefine for NaCl. ld/ * emulparams/elf_x86_64.sh (TINY_READONLY_SECTION): New. ld/testsuite/ * ld-x86-64/mpx.exp: Run bnd-ifunc-1 and bnd-plt-1. * ld-x86-64/bnd-ifunc-1.d: New file. * ld-x86-64/bnd-ifunc-1.s: Likewise. * ld-x86-64/bnd-plt-1.d: Likewise.
2014-02-18The PT_DYNAMIC segment was being hard coded to have read, write, andJack Carter2-1/+5
execute permission regardless of the underlying PT_LOAD segment permissions. Deleting this code allows the default linker behavior which is to set the dynamic segment to the same permissions as the sections that make it up. This change alters one existing test case to check the segment flags for PT_DYNAMIC. bfd/ChangeLog * elfxx-mips.c(_bfd_mips_elf_modify_segment_map): Deleted hard coding of PT_DYNAMIC segment flags. ld/testsuite/ChangeLog * ld-mips-elf/pic-and-nonpic-3a.sd: Check DYNAMIC segment flags.
2014-02-16Missing ChangeLog entry from commit 60ef20e28534cf093d5bd799b3830c68381bb27f.Thomas Schwinge1-0/+5
2014-02-16ld: Remove Hurd-specific XFAILs related to weak symbols.Thomas Schwinge1-17/+0
This has been fixed properly, in glibc. ld/testsuite/ * ld-elfweak/elfweak.exp (setup_xfail_gnu_hurd): Remove function and all usage of it.
2014-02-10Mark symbol in executables if it matches dynamic_listH.J. Lu5-0/+30
bfd/ PR gold/16530 * elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Mark symbol in executables if it matches dynamic_list. ld/testsuite/ PR gold/16530 * ld-elf/dynamic-1.c: New file. * ld-elf/dynamic-1.rd: Likewise. * ld-elf/dynamic-1.syms: Likewise. * ld-elf/shared.exp (build_tests): Add dynamic-1.
2014-02-02Fix ALIGN_WITH_INPUTSebastian Huber8-0/+91
ld/ 2014-02-02 Sebastian Huber <sebastian.huber@embedded-brains.de> * ld/ld.texinfo: Change ALIGN_WITH_INPUT documentation. * ld/ldlang.c (lang_size_sections_1): Add dotdelta variable which reflects the VMA change due to alignment requirements. Use dotdelta do change the LMA if ALIGN_WITH_INPUT is requested. ld/testsuite/ChangeLog 2014-02-02 Sebastian Huber <sebastian.huber@embedded-brains.de> * ld-scripts/rgn-at9.d: New file. * ld-scripts/rgn-at9.t: Likewise. * ld-scripts/rgn-at10.d: Likewise. * ld-scripts/rgn-at10.s: Likewise. * ld-scripts/rgn-at10.t: Likewise. * ld-scripts/rgn-at11.d: Likewise. * ld-scripts/rgn-at11.t: Likewise.
2014-01-30Nios II CALL26 linker relaxationSandra Loosemore22-0/+333
2014-01-30 Sandra Loosemore <sandra@codesourcery.com> bfd/ * bfd-in2.h: Update from reloc.c. * elf32-nios2.c: Include elf32-nios2.h. (elf_nios2_howto_table_rel): Add entry for R_NIOS2_CALL26_NOAT. (nios2_reloc_map): Likewise. (enum elf32_nios2_stub_type): Declare. (struct elf32_nios2_stub_hash_entry): Declare. (nios2_stub_hash_entry, nios2_stub_hash_lookup): New macros. (struct elf32_nios2_link_hash_entry): Add hsh_cache field. (struct elf32_nios2_link_hash_table): Add new fields bstab, stub_bfd, add_stub_section, layout_sections_again, stub_group, bfd_count, top_index, input_list, all_local_syms. (nios2_call26_stub_entry): New. (nios2_elf32_install_imm16): Move up in file. (nios2_elf32_install_data): Move up in file. (hiadj): Move up in file. (stub_hash_newfunc): New. (link_hash_newfunc): Initialize hsh_cache field. (STUB_SUFFIX): New. (nios2_stub_name): New. (nios2_get_stub_entry): New. (nios2_add_stub): New. (nios2_elf32_setup_section_lists): New. (nios2_elf32_next_input_section): New. (CALL26_SEGMENT): New. (MAX_STUB_SECTION_SIZE): New. (group_sections): New. (nios2_type_of_stub): New. (nios2_build_one_stub): New. (nios2_size_one_stub): New. (get_local_syms): New. (nios2_elf32_size_stubs): New. (nios2_elf32_build_stubs): New. (nios2_elf32_do_call26_relocate): Correct CALL26 overflow test. (nios2_elf32_relocate_section): Handle R_NIOS2_CALL26_NOAT. Add trampolines for R_NIOS2_CALL26 stubs. (nios2_elf32_check_relocs): Handle R_NIOS2_CALL26_NOAT. (nios2_elf32_gc_sweep_hook): Likewise. (nios2_elf32_link_hash_table_create): Initialize the stub hash table. (nios2_elf32_link_hash_table_free): New. (bfd_elf32_bfd_link_hash_table_free): Define. * elf32-nios2.h: New file. * libbfd.h: Update from reloc.c. * reloc.c (BFD_RELOC_NIOS2_CALL26_NOAT): New. gas/ * config/tc-nios2.c (md_apply_fix): Handle BFD_RELOC_NIOS2_CALL26_NOAT. (nios2_assemble_args_m): Likewise. (md_assemble): Likewise. gas/testsuite/ * gas/nios2/call26_noat.d: New. * gas/nios2/call26_noat.s: New. * gas/nios2/call_noat.d: New. * gas/nios2/call_noat.s: New. include/elf/ * nios2.h (elf_nios2_reloc_type): Add R_NIOS2_CALL26_NOAT. ld/ * Makefile.am (enios2elf.c, enios2linux.c): Update dependencies. * Makefile.in: Regenerated. * emulparams/nios2elf.sh (EXTRA_EM_FILE): Set. * emulparams/nios2linux.sh (EXTRA_EM_FILE): Set. * emultempl/nios2elf.em: New file. * gen-doc.texi (NIOSII): Set. * ld.texinfo (NIOSII): Set. ld/testsuite/ * ld-nios2/relax_call26.s: New. * ld-nios2/relax_call26_boundary.ld: New. * ld-nios2/relax_call26_boundary.s: New. * ld-nios2/relax_call26_boundary_c8.d: New. * ld-nios2/relax_call26_boundary_cc.d: New. * ld-nios2/relax_call26_boundary_d0.d: New. * ld-nios2/relax_call26_boundary_d4.d: New. * ld-nios2/relax_call26_boundary_d8.d: New. * ld-nios2/relax_call26_boundary_dc.d: New. * ld-nios2/relax_call26_boundary_f0.d: New. * ld-nios2/relax_call26_boundary_f4.d: New. * ld-nios2/relax_call26_boundary_f8.d: New. * ld-nios2/relax_call26_boundary_fc.d: New. * ld-nios2/relax_call26_cache.d: New. * ld-nios2/relax_call26_cache.ld: New. * ld-nios2/relax_call26_cache.s: New. * ld-nios2/relax_call26_multi.d: New. * ld-nios2/relax_call26_multi.ld: New. * ld-nios2/relax_call26_norelax.d: New. * ld-nios2/relax_call26_shared.d: New. * ld-nios2/relax_call26_shared.ld: New.
2014-01-29Add rdynamic-1 testH.J. Lu4-0/+25
It is added for commit 409ff343a402799563f71f938138b29f8baf7a1c Author: Alan Modra <amodra@gmail.com> Date: Tue Nov 8 13:49:11 2011 +0000 * elflink.c (bfd_elf_gc_mark_dynamic_ref_symbol): Mark syms in executables when export_dynamic. * ld-elf/rdynamic-1.c: New file. * ld-elf/rdynamic-1.rd: Likewise. * ld-elf/shared.exp (build_tests): Add rdynamic-1.
2014-01-28Update the tic6x linker tests to match the current behaviour of the linker ↵Nick Clifton15-40/+58
and readelf. PR binutils/16317 * ld-tic6x/shlib-1.rd: Expect I attribute with RELA sections. * ld-tic6x/shlib-1b.rd: Likewise. * ld-tic6x/shlib-1r.rd: Likewise. * ld-tic6x/shlib-1rb.rd: Likewise. * ld-tic6x/shlib-app-1rd: Likewise. * ld-tic6x/shlib-app-1b.rd: Likewise. * ld-tic6x/shlib-app-1r.rd: Likewise. * ld-tic6x/shlib-app-1rb.rd: Likewise. * ld-tic6x/shlib-noindex.rd: Likewise. * ld-tic6x/static-app-1.rd: Likewise. * ld-tic6x/static-app-1b.rd: Likewise. * ld-tic6x/static-app-1r.rd: Likewise. * ld-tic6x/static-app-1rb.rd: Likewise. PR binutils/16318 * ld-tic6x/tic6x.exp: Expect C6000 osabi value in relocatable objects.
2014-01-24Replace .align with .p2alignH.J. Lu2-3/+7
* ld-elf/pr16498a.s: Replace .align with .p2align.
2014-01-24Add another testcase for PR ld/16498H.J. Lu3-0/+22
PR ld/16498 * ld-elf/pr16498b.d: New file. * ld-elf/pr16498b.t: Likewise.
2014-01-24Improve orphaned TLS section handlingH.J. Lu4-0/+45
ld/ PR ld/16498 * emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Improve orphaned TLS section handling. ld/testsuite/ PR ld/16498 * ld-elf/pr16498a.d: New file. * ld-elf/pr16498a.s: Likewise. * ld-elf/pr16498a.t: Likewise.
2014-01-22Miscellaneous ld tidiesAlan Modra2-1/+5
Localise a struct, prevent an unneeded symbol lookup, and fix a testcase. ld/ * ld.h (struct map_symbol_def): Move to.. * ldlang.h: ..here. * ldlang.c (print_assignment): Don't set expld.assign_name to dot. ld/testsuite/ * ld-scripts/pr14962-2.d: Correct target triple.
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