[Bug lto/96385] [8/9/10 Regression] GCC generates separate debug info with undefined symbols without relocations

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96385

--- Comment #19 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Richard Biener
<rguenth@gcc.gnu.org>:

https://gcc.gnu.org/g:63a2bdbfb42628800a6999e98804928855592ce7

commit r10-8746-g63a2bdbfb42628800a6999e98804928855592ce7
Author: Richard Biener <rguenther@suse.de>
Date:   Mon Aug 3 15:05:37 2020 +0200

    lto/96385 - avoid unused global UNDEFs in debug objects

    Unused global UNDEFs can have side-effects in some circumstances so
    the following patch avoids them by treating them the same as other
    to be discarded DEFs - make them local.

    2020-08-03  Richard Biener  <rguenther@suse.de>

            PR lto/96385
    libiberty/
            * simple-object-elf.c
            (simple_object_elf_copy_lto_debug_sections): Localize global
            UNDEFs and reuse the prevailing name.

    (cherry picked from commit b32c5d0b72fda2588b4e170e75a9c64e4bf266c7)