[Bug libc/18822] Internal functions are called via PLT

["cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=18822

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=65a086db91d4e06074b461b8e99efcebe1416a3f

commit 65a086db91d4e06074b461b8e99efcebe1416a3f
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Aug 18 09:31:19 2017 -0700

    Mark internal argz functions with attribute_hidden [BZ #18822]

    Move internal argz function prototypes to include/argz.h and mark them
    with attribute_hidden to allow direct access within libc.so and libc.a
    without using GOT nor PLT.  This also brings string/argz.h closer to the
    gnulib version.

        [BZ #18822]
        * include/argz.h (__argz_create_sep): New function prototype.
        (__argz_append): Likewise.
        (__argz_add): Likewise.
        (__argz_add_sep): Likewise.
        (__argz_delete): Likewise.
        (__argz_insert): Likewise.
        (__argz_replace): Likewise.
        * string/argz.h (__argz_create_sep): Removed.
        (__argz_append): Likewise.
        (__argz_add): Likewise.
        (__argz_add_sep): Likewise.
        (__argz_delete): Likewise.
        (__argz_insert): Likewise.
        (__argz_replace): Likewise.

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog      |   18 ++++++++++++++++++
 include/argz.h |   32 ++++++++++++++++++++++++++++++++
 string/argz.h  |   26 --------------------------
 3 files changed, 50 insertions(+), 26 deletions(-)

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