[Bug binutils/30281] error: multiple definition of `pwrite@GLIBC_2.2' with LTO and symver attribute

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=30281

--- Comment #6 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 <hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=79cfb928f552401e3cec7a208a87eb74aa0d2d8b

commit 79cfb928f552401e3cec7a208a87eb74aa0d2d8b
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Mar 29 13:06:26 2023 -0700

    lto: Don't add indirect symbols for versioned aliases in IR

    Linker adds indirect symbols for versioned symbol aliases, which are
    created by ".symver foo, foo@FOO", by checking symbol type, value and
    section so that references to foo will be replaced by references to
    foo@FOO if foo and foo@FOO have the same symbol type, value and section.
    But in IR, since all symbols of the same type have the same value and
    section, we can't tell if a symbol is an alias of another symbol by
    their types, values and sections.  We shouldn't add indirect symbols
    for versioned symbol aliases in IR.

    bfd/

            PR ld/30281
            * elflink.c (elf_link_add_object_symbols): Don't add indirect
            symbols for ".symver foo, foo@FOO" aliases in IR.

    ld/

            PR ld/30281
            * testsuite/ld-plugin/lto.exp: Add PR ld/30281 test.
            * testsuite/ld-plugin/pr30281.t: New file.
            * testsuite/ld-plugin/pr30281.c: Likewise.

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