[Bug ld/17482] -melf32_x86_64 IE->LE transition error

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17482

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cf61b7473a8ee3b43c4f8f2776075ec8d81d7495

commit cf61b7473a8ee3b43c4f8f2776075ec8d81d7495
Author: H.J. Lu <address@hidden>
Date:   Fri Nov 7 12:22:53 2014 -0800

    X32: Add REX prefix to encode R_X86_64_GOTTPOFF

    Structions with R_X86_64_GOTTPOFF relocation must be encoded with REX
    prefix even if it isn't required by destination register.  Otherwise
    linker can't safely perform IE -> LE optimization.

    bfd/

        PR ld/17482
        * elf64-x86-64.c (elf_x86_64_relocate_section): Update comments
        for IE->LE transition.

    gas/

        PR ld/17482
        * config/tc-i386.c (output_insn): Add a dummy REX_OPCODE prefix
        for structions with R_X86_64_GOTTPOFF relocation for x32 if needed.

    gas/testsuite/

        PR ld/17482
        * gas/i386/ilp32/x32-tls.d: New file.
        * gas/i386/ilp32/x32-tls.s: Likewise.

    ld/testsuite/

        PR ld/17482
        * ld-x86-64/tlsie4.dd: Updated.

-----------------------------------------------------------------------

Summary of changes:
 bfd/ChangeLog                          |    6 ++++++
 bfd/elf64-x86-64.c                     |   22 ++++++++++++++++------
 gas/ChangeLog                          |    6 ++++++
 gas/config/tc-i386.c                   |    9 +++++++++
 gas/testsuite/ChangeLog                |    6 ++++++
 gas/testsuite/gas/i386/ilp32/x32-tls.d |   13 +++++++++++++
 gas/testsuite/gas/i386/ilp32/x32-tls.s |   13 +++++++++++++
 ld/testsuite/ChangeLog                 |    5 +++++
 ld/testsuite/ld-x86-64/tlsie4.dd       |    4 ++--
 9 files changed, 76 insertions(+), 8 deletions(-)
 create mode 100644 gas/testsuite/gas/i386/ilp32/x32-tls.d
 create mode 100644 gas/testsuite/gas/i386/ilp32/x32-tls.s

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