[Bug ld/19886] PR17287 --as-needed regression

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=19886

--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Alan Modra <address@hidden>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7b15fa7ac802f430f7fb7c2b77f40ab78c2e4018

commit 7b15fa7ac802f430f7fb7c2b77f40ab78c2e4018
Author: Alan Modra <address@hidden>
Date:   Fri Apr 1 17:08:45 2016 +1030

    PR19886, --as-needed regression

    This isn't perfect in checking whether libraries will be loaded since
    elf_link_add_object_symbols doesn't recurse down DT_NEEDED links.
    (That happens later in ld/emultempl/elf32.em after_open.)  So in
    effect this recursive check really only looks one level down the
    DT_NEEDED tree.  Which is enough for the most common case, and
    libc.so/ld.so in particular.

        PR 19886
        * elflink.c (on_needed_list): Recursively check needed status.
        (elf_link_add_object_symbols): Adjust.

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