[Bug gas/21661] .symver shouldn't be allowed on common symbol

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21661

--- Comment #2 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>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a3aea05a66ec325ddd19b0c8dbe504958a295cd3

commit a3aea05a66ec325ddd19b0c8dbe504958a295cd3
Author: H.J. Lu <address@hidden>
Date:   Mon Jun 26 05:11:07 2017 -0700

    Check unsupported .symver with common symbol

    The .symver directive on common symbol creates a new common symbol,
    which shouldn't be allowed, similar to alias on common symbol:

    $ cat y.S
        .comm   bar,8,8
         .set bar1,bar
    $ as -o y.o y.S
    y.S: Assembler messages:
    y.S:2: Error: `bar1' can't be equated to common symbol 'bar'
    $

        PR gas/21661
        * config/obj-elf.c (obj_elf_symver): Don't allow .symver with
        common symbol.
        (elf_frob_symbol): Likewise.
        * testsuite/gas/elf/elf.exp: Run pr21661.
        * testsuite/gas/elf/pr21661.d: New file.
        * testsuite/gas/elf/pr21661.s: Likewise.

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