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[Bug ld/23930] Problems linking objectfiles optimized for size (-Os)

From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/23930] Problems linking objectfiles optimized for size (-Os)
Date: Sat, 01 Dec 2018 14:39:31 +0000


--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by H.J. Lu <address@hidden>:


commit b44ee3a8cf21294eeb079ffbada7eeb559a9c6b4
Author: H.J. Lu <address@hidden>
Date:   Sat Dec 1 05:42:33 2018 -0800

    x86: Delay setting the iplt section alignment

    Delay setting its alignment until we know it is non-empty.  Otherwise an
    empty iplt section may change vma and lma of the following sections, which
    triggers moving dot of the following section backwards, resulting in a
    warning and section lma not being set properly.  It later leads to a
    "File truncated" error.


        PR ld/23930
        * elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Update
        the iplt section alignment if it is non-empty.
        (_bfd_x86_elf_link_setup_gnu_properties): Set plt.iplt_alignment
        and delay setting the iplt section alignment.
        * elfxx-x86.h (elf_x86_plt_layout): Add iplt_alignment.


        PR ld/23930
        * testsuite/ld-i386/i386.exp: Run pr23930.
        * testsuite/ld-i386/pr23930.d: New file.
        * testsuite/ld-x86-64/pr23930-32.t: Likewise.
        * testsuite/ld-x86-64/pr23930-x32.d: Likewise.
        * testsuite/ld-x86-64/pr23930.d: Likewise.
        * testsuite/ld-x86-64/pr23930.t: Likewise.
        * testsuite/ld-x86-64/pr23930a.s: Likewise.
        * testsuite/ld-x86-64/pr23930b.s: Likewise.
        * testsuite/ld-x86-64/x86-64.exp: Run pr23930 and pr23930-x32.

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