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[Bug dynamic-link/19122] Unnecessary PLT relocations in librtld.os


https://sourceware.org/bugzilla/show_bug.cgi?id=19122

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=58c9ff1bdb213bfa65eff12c7d17532cb48aabe7

commit 58c9ff1bdb213bfa65eff12c7d17532cb48aabe7
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Oct 15 14:04:00 2015 -0700

    Mark internal _dl_XXX functions hidden

    Since internal _dl_XXX functions are only used internally in ld.so,
    they can be made hidden.

        [BZ #19122]
        * elf/dl-runtime.c (_dl_fixup): Add attribute_hidden.
        * elf/dynamic-link.h (_dl_try_allocate_static_tls): Likewise.
        * sysdeps/generic/dl-cache.h (_dl_cache_libcmp): Likewise.
        * sysdeps/generic/ldsodefs.h (_dl_name_match_p): Likewise.
        (_dl_higher_prime_number): Likewise.
        (_dl_debug_printf_c): Likewise.
        (_dl_signal_cerror): Likewise.
        (_dl_receive_error): Likewise.
        (_dl_reloc_bad_type): Likewise.
        (_dl_resolve_conflicts): Likewise.
        (_dl_check_all_versions): Likewise.
        (_dl_check_map_versions): Likewise.
        (_dl_sort_fini): Likewise.
        (_dl_debug_initialize): Likewise.
        (_dl_init_paths): Likewise.
        (_dl_show_auxv): Likewise.
        (_dl_next_ld_env_entry): Likewise.
        (_dl_important_hwcaps): Likewise.
        (_dl_load_cache_lookup): Likewise.
        (_dl_update_slotinfo): Likewise.
        (_dl_show_scope): Likewise.

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

Summary of changes:
 ChangeLog                  |   22 ++++++++++++++++++++++
 elf/dl-runtime.c           |    2 +-
 elf/dynamic-link.h         |    3 ++-
 sysdeps/generic/dl-cache.h |    2 +-
 sysdeps/generic/ldsodefs.h |   42 ++++++++++++++++++++++++------------------
 5 files changed, 50 insertions(+), 21 deletions(-)

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