[Bug ld/21401] -shared -z now doesn't work with undefined IFUNC

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=21401

--- Comment #1 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=e492d2f8ac653b050019865ba1418fc5b057c00b

commit e492d2f8ac653b050019865ba1418fc5b057c00b
Author: H.J. Lu <address@hidden>
Date:   Wed Apr 19 09:59:14 2017 -0700

    x86-64: Handle undefined IFUNC symbol with -z now

    Since undefined IFUNC symbol is treated as normal FUNC symbol, don't
    abort on undefined IFUNC symbol in the second PLT.

    bfd/

        PR ld/21401
        * elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Don't abort
        on on undefined IFUNC symbol in the second PLT.

    ld/

        PR ld/21401
        * testsuite/ld-ifunc/ifunc.exp: Add a libtest-2-now.so test with
        -z now.

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