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[Bug ld/20528] ld -r doesn't handle SHF_EXCLUDE section properly


From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/20528] ld -r doesn't handle SHF_EXCLUDE section properly
Date: Tue, 11 Oct 2016 12:53:16 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=20528

--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Nick Clifton <address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a24bb4f0cce83eea8b2ad1542316651143af6f90

commit a24bb4f0cce83eea8b2ad1542316651143af6f90
Author: Nick Clifton <address@hidden>
Date:   Tue Oct 11 13:50:10 2016 +0100

    Enhance objdump so that it will use .got, .plt and .plt.got section symbols
when disassembling, and it will use dynamic relocs to interpret entries in the
PLT and GOT.

    binutils * objdump.c (is_significant_symbol_name): New function.
        (remove_useless_symbols): Do not remove significanr symbols.
        (find_symbol_for_address): If an exact match for the specified
        address has not been found, try scanning the dynamic relocs to see
        if one of these matches the address.  If so, use the symbol
        associated with the reloc.
        (objdump_print_addr_with_symbol): Do not print offsets to symbols
        with no value.
        (disassemble_section): Only use dynamic relocs if the user
        requested this.
        (disassemble_data): Always load dynamic relocs if they are
        available.

    ld  * ld-aarch64/emit-relocs-515-be.d: Adjust output to match change
        in objdump.
        * ld-aarch64/emit-relocs-515.d: Likewise.
        * ld-aarch64/emit-relocs-516-be.d: Likewise.
        * ld-aarch64/emit-relocs-516.d: Likewise.
        * ld-aarch64/farcall-b-plt.d: Likewise.
        * ld-aarch64/farcall-bl-plt.d: Likewise.
        * ld-aarch64/gc-plt-relocs.d: Likewise.
        * ld-aarch64/tls-desc-ie.d: Likewise.
        * ld-aarch64/tls-tiny-desc.d: Likewise.
        * ld-aarch64/tls-tiny-gd.d: Likewise.
        * ld-aarch64/tls-tiny-ie.d: Likewise.
        * ld-arm/arm-app-abs32.d: Likewise.
        * 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-app2.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-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/tls-lib-loc.d: Likewise.
        * ld-cris/dso-pltdis1.d: Likewise.
        * ld-cris/dso-pltdis2.d: Likewise.
        * ld-cris/dso12-pltdis.d: Likewise.
        * ld-elf/symbolic-func.r: Likewise.
        * ld-frv/fdpic-pie-1.d: Likewise.
        * ld-frv/fdpic-pie-2.d: Likewise.
        * ld-frv/fdpic-pie-6.d: Likewise.
        * ld-frv/fdpic-pie-7.d: Likewise.
        * ld-frv/fdpic-pie-8.d: Likewise.
        * ld-frv/fdpic-shared-1.d: Likewise.
        * ld-frv/fdpic-shared-2.d: Likewise.
        * ld-frv/fdpic-shared-3.d: Likewise.
        * ld-frv/fdpic-shared-4.d: Likewise.
        * ld-frv/fdpic-shared-5.d: Likewise.
        * ld-frv/fdpic-shared-6.d: Likewise.
        * ld-frv/fdpic-shared-7.d: Likewise.
        * ld-frv/fdpic-shared-8.d: Likewise.
        * ld-frv/fdpic-shared-local-2.d: Likewise.
        * ld-frv/fdpic-shared-local-8.d: Likewise.
        * ld-frv/fdpic-static-1.d: Likewise.
        * ld-frv/fdpic-static-2.d: Likewise.
        * ld-frv/fdpic-static-6.d: Likewise.
        * ld-frv/fdpic-static-7.d: Likewise.
        * ld-frv/fdpic-static-8.d: Likewise.
        * ld-frv/tls-dynamic-2.d: Likewise.
        * ld-frv/tls-initial-shared-2.d: Likewise.
        * ld-frv/tls-relax-shared-2.d: Likewise.
        * ld-frv/tls-shared-2.d: Likewise.
        * ld-i386/plt-nacl.pd: Likewise.
        * ld-i386/plt-pic-nacl.pd: Likewise.
        * ld-i386/plt-pic.pd: Likewise.
        * ld-i386/plt.pd: Likewise.
        * ld-i386/pr19636-1d-nacl.d: Likewise.
        * ld-i386/pr19636-1d.d: Likewise.
        * ld-i386/pr19636-2c-nacl.d: Likewise.
        * ld-i386/pr19636-2c.d: Likewise.
        * ld-ifunc/ifunc-21-x86-64.d: Likewise.
        * ld-ifunc/ifunc-22-x86-64.d: Likewise.
        * ld-ifunc/pr17154-i386.d: Likewise.
        * ld-ifunc/pr17154-x86-64.d: Likewise.
        * ld-m68k/plt1-68020.d: Likewise.
        * ld-m68k/plt1-cpu32.d: Likewise.
        * ld-m68k/plt1-isab.d: Likewise.
        * ld-m68k/plt1-isac.d: Likewise.
        * ld-metag/shared.d: Likewise.
        * ld-metag/stub_pic_app.d: Likewise.
        * ld-metag/stub_pic_shared.d: Likewise.
        * ld-metag/stub_shared.d: Likewise.
        * ld-s390/tlsbin_64.dd: Likewise.
        * ld-s390/tlspic_64.dd: Likewise.
        * ld-tic6x/shlib-1.dd: Likewise.
        * ld-tic6x/shlib-1b.dd: Likewise.
        * ld-tic6x/shlib-1rb.dd: Likewise.
        * ld-tic6x/shlib-app-1.dd: Likewise.
        * ld-tic6x/shlib-app-1b.dd: Likewise.
        * ld-tic6x/shlib-app-1r.dd: Likewise.
        * ld-tic6x/shlib-app-1rb.dd: Likewise.
        * ld-tic6x/shlib-noindex.dd: Likewise.
        * ld-vax-elf/export-class-data.dd: Likewise.
        * ld-vax-elf/plt-local-lib.dd: Likewise.
        * ld-vax-elf/plt-local.dd: Likewise.
        * ld-x86-64/bnd-ifunc-2.d: Likewise.
        * ld-x86-64/bnd-plt-1.d: Likewise.
        * ld-x86-64/gotpcrel1.dd: Likewise.
        * ld-x86-64/libno-plt-1b.dd: Likewise.
        * ld-x86-64/load1c-nacl.d: Likewise.
        * ld-x86-64/load1c.d: Likewise.
        * ld-x86-64/load1d-nacl.d: Likewise.
        * ld-x86-64/load1d.d: Likewise.
        * ld-x86-64/mov1a.d: Likewise.
        * ld-x86-64/mov1b.d: Likewise.
        * ld-x86-64/mov1c.d: Likewise.
        * ld-x86-64/mov1d.d: Likewise.
        * ld-x86-64/mov2a.d: Likewise.
        * ld-x86-64/mov2b.d: Likewise.
        * ld-x86-64/mov2c.d: Likewise.
        * ld-x86-64/mov2d.d: Likewise.
        * ld-x86-64/mpx3.dd: Likewise.
        * ld-x86-64/mpx4.dd: Likewise.
        * ld-x86-64/no-plt-1a.dd: Likewise.
        * ld-x86-64/no-plt-1b.dd: Likewise.
        * ld-x86-64/no-plt-1c.dd: Likewise.
        * ld-x86-64/no-plt-1e.dd: Likewise.
        * ld-x86-64/no-plt-1f.dd: Likewise.
        * ld-x86-64/no-plt-1g.dd: Likewise.
        * ld-x86-64/plt-main-bnd.dd: Likewise.
        * ld-x86-64/plt-nacl.pd: Likewise.
        * ld-x86-64/plt.pd: Likewise.
        * ld-x86-64/pr18591.d: Likewise.
        * ld-x86-64/pr19609-1c.d: Likewise.
        * ld-x86-64/pr19609-1e.d: Likewise.
        * ld-x86-64/pr19609-1j.d: Likewise.
        * ld-x86-64/pr19609-1l.d: Likewise.
        * ld-x86-64/pr19609-1m.d: Likewise.
        * ld-x86-64/pr19609-5b.d: Likewise.
        * ld-x86-64/pr19609-5c.d: Likewise.
        * ld-x86-64/pr19609-5e.d: Likewise.
        * ld-x86-64/pr19609-6b.d: Likewise.
        * ld-x86-64/pr19609-7b.d: Likewise.
        * ld-x86-64/pr19609-7d.d: Likewise.
        * ld-x86-64/pr19636-2d.d: Likewise.
        * ld-x86-64/pr20093-1.d: Likewise.
        * ld-x86-64/pr20093-2.d: Likewise.
        * ld-x86-64/pr20253-1b.d: Likewise.
        * ld-x86-64/pr20253-1d.d: Likewise.
        * ld-x86-64/pr20253-1f.d: Likewise.
        * ld-x86-64/pr20253-1h.d: Likewise.
        * ld-x86-64/pr20253-1j.d: Likewise.
        * ld-x86-64/pr20253-1l.d: Likewise.
        * ld-x86-64/protected3.d: Likewise.
        * ld-x86-64/tlsbin.dd: Likewise.
        * ld-x86-64/tlsbin2.dd: Likewise.
        * ld-x86-64/tlsbindesc.dd: Likewise.
        * ld-x86-64/tlsdesc-nacl.pd: Likewise.
        * ld-x86-64/tlsdesc.dd: Likewise.
        * ld-x86-64/tlsdesc.pd: Likewise.
        * ld-x86-64/tlsgd10.dd: Likewise.
        * ld-x86-64/tlsgd5.dd: Likewise.
        * ld-x86-64/tlsgd6.dd: Likewise.
        * ld-x86-64/tlsgd8.dd: Likewise.
        * ld-x86-64/tlsgdesc.dd: Likewise.
        * ld-x86-64/tlspic.dd: Likewise.
        * ld-x86-64/tlspic2.dd: Likewise.

    2016-10-11  Nick Clifton  <address@hidden>

        PR ld/20535
        * emultempl/elf32.em (_search_needed): Add support for pseudo
        environment variables supported by ld.so.  Namely $ORIGIN, $LIB
        and $PLATFORM.
        * configure.ac: Add getauxval to list AC_CHECK_FUNCS list.
        * config.in: Regenerate.
        * configure: Regenerate.

    2016-10-11  Alan Modra  <address@hidden>

        * ldlang.c (lang_do_assignments_1): Descend into output section
        statements that do not yet have bfd sections.  Set symbol section
        temporarily for symbols defined in such statements to the undefined
        section.  Don't error on data or reloc statements until final phase.
        * ldexp.c (exp_fold_tree_1 <etree_assign>): Handle bfd_und_section
        in expld.section.
        * testsuite/ld-mmix/bpo-10.d: Adjust.
        * testsuite/ld-mmix/bpo-11.d: Adjust.

    2016-10-10  Andreas Krebbel  <address@hidden>

        * emulparams/elf64_s390.sh: Move binary start to 16M.
        * testsuite/ld-s390/tlsbin_64.dd: Adjust testcases accordingly.
        * testsuite/ld-s390/tlsbin_64.rd: Likewise.

    2016-10-07  Alan Modra  <address@hidden>

        * ldexp.c (MAX): Define.
        (exp_unop, exp_binop, exp_trinop): Alloc at least enough for
        etree_type.value.

    2016-10-07  Alan Modra  <address@hidden>

        * testsuite/lib/ld-lib.exp (is_generic_elf): New, extracted from..
        * testsuite/ld-elf/elf.exp: ..here.

    2016-10-06  Ludovic Court?s  <address@hidden>

        * emulparams/elf32bmipn32-defs.sh: Shift quote of
        "x$EMULATION_NAME" to the left to work around
        <http://ftp.gnu.org/gnu/bash/bash-4.2-patches/bash42-007>.

    2016-10-06  Alan Modra  <address@hidden>

        * lexsup.c: Spell fall through comments consistently and add
        missing fall through comments.

    2016-10-06  Alan Modra  <address@hidden>

        * plugin.c (asymbol_from_plugin_symbol): Avoid compiler warning
        by adding return.

    2016-10-04  Alan Modra  <address@hidden>

        * ld.texinfo (Expression Section): Update result of arithmetic
        expressions.
        * ldexp.c (arith_result_section): New function.
        (fold_binary): Use it.

    2016-10-04  Alan Modra  <address@hidden>

        * ldexp.c (exp_value_fold): New function.
        (exp_unop, exp_binop, exp_trinop): Use it.

    2016-09-30  Alan Modra  <address@hidden>

        * scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when
        not relocating.
        * scripttempl/v850_rh850.sc: Likewise.

    2016-09-30  Alan Modra  <address@hidden>

        PR ld/20528
        * testsuite/ld-elf/pr20528a.d: xfail generic elf targets.  Allow
        multiple .text sections for hppa-linux.
        * testsuite/ld-elf/pr20528b.d: Likewise.

    2016-09-30  Alan Modra  <address@hidden>

        * ldmain.c (default_bfd_error_handler): New function pointer.
        (ld_bfd_error_handler): New function.
        (main): Arrange to call it on bfd errors/warnings.
        (ld_bfd_assert_handler): Enable tail call.

    2016-09-30  Alan Modra  <address@hidden>

        * ldlang.c (ignore_bfd_errors): Update params.

    2016-09-29  H.J. Lu  <address@hidden>

        PR ld/20528
        * emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
        merge 2 sections with different SHF_EXCLUDE.
        * testsuite/ld-elf/pr20528a.d: New file.
        * testsuite/ld-elf/pr20528a.s: Likewise.
        * testsuite/ld-elf/pr20528b.d: Likewise.
        * testsuite/ld-elf/pr20528b.s: Likewise.

    2016-09-28  Christophe Lyon  <address@hidden>

        PR ld/20608
        * testsuite/ld-arm/arm-elf.exp: Handle new testcase.
        * testsuite/ld-arm/farcall-mixed-app2.d: New file.
        * testsuite/ld-arm/farcall-mixed-app2.r: Likewise.
        * testsuite/ld-arm/farcall-mixed-app2.s: Likewise.
        * testsuite/ld-arm/farcall-mixed-app2.sym: Likewise.

    2016-09-26  Vlad Zakharov  <address@hidden>

        * Makefile.in: Regenerate.
        * configure: Likewise.

    2016-09-26  Alan Modra  <address@hidden>

        * testsuite/ld-powerpc/attr-gnu-4-4.s: Delete.
        * testsuite/ld-powerpc/attr-gnu-4-14.d: Delete.
        * testsuite/ld-powerpc/attr-gnu-4-24.d: Delete.
        * testsuite/ld-powerpc/attr-gnu-4-34.d: Delete.
        * testsuite/ld-powerpc/attr-gnu-4-41.d: Delete.
        * testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning.
        * testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output.
        * testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise.
        * testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise.
        * testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests.

    2016-09-23  Akihiko Odaki  <address@hidden>

        PR ld/20595
        * testsuite/ld-arm/unwind-4.d: Add -q option to linker command
        line and -r option to objdump command line.  Match emitted relocs
        to make sure that superflous relocs are not generated.

    2016-09-23  Andreas Krebbel  <address@hidden>

        * emulparams/elf64_s390.sh: Change TEXT_START_ADDR to 256MB.
        * testsuite/ld-s390/tlsbin_64.dd: Adjust testcase accordingly.
        * testsuite/ld-s390/tlsbin_64.rd: Likewise.

    2016-09-22  Nick Clifton  <address@hidden>

        * emultempl/elf32.em (_try_needed): In verbose mode, report failed
        attempts to find a needed library.

    2016-09-21  Richard Sandiford  <address@hidden>

        * testsuite/ld-aarch64/emit-relocs-28.d: Expect spaces after ","
        in addresses.
        * testsuite/ld-aarch64/emit-relocs-301-be.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-301.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-302-be.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-302.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-310-be.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-310.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-313.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-515-be.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-515.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-516-be.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-516.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-531.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-532.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-533.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-534.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-535.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-536.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-537.d: Likewise.
        * testsuite/ld-aarch64/emit-relocs-538.d: Likewise.
        * testsuite/ld-aarch64/erratum835769.d: Likewise.
        * testsuite/ld-aarch64/erratum843419.d: Likewise.
        * testsuite/ld-aarch64/farcall-b-plt.d: Likewise.
        * testsuite/ld-aarch64/farcall-bl-plt.d: Likewise.
        * testsuite/ld-aarch64/gc-plt-relocs.d: Likewise.
        * testsuite/ld-aarch64/ifunc-21.d: Likewise.
        * testsuite/ld-aarch64/ifunc-7c.d: Likewise.
        * testsuite/ld-aarch64/tls-desc-ie.d: Likewise.
        * testsuite/ld-aarch64/tls-large-desc-be.d: Likewise.
        * testsuite/ld-aarch64/tls-large-desc.d: Likewise.
        * testsuite/ld-aarch64/tls-large-ie-be.d: Likewise.
        * testsuite/ld-aarch64/tls-large-ie.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-all.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-gd-ie.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-gdesc-ie-2.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-gdesc-ie.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-large-desc-ie-be.d: Likewise.
        * testsuite/ld-aarch64/tls-relax-large-desc-ie.d: Likewise.
        * testsuite/ld-aarch64/tls-tiny-desc.d: Likewise.
        * testsuite/ld-aarch64/tls-tiny-gd.d: Likewise.

    gas * gas/arm/tls.d: Adjust output to match change in objdump.

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