[Bug ld/22269] Undefined weak symbols isn't resolved to 0 in static PIE

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=22269

--- Comment #19 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=db41f6eb5234ea3c74c1ce4798cf9923d4a45a98

commit db41f6eb5234ea3c74c1ce4798cf9923d4a45a98
Author: H.J. Lu <address@hidden>
Date:   Sat Oct 14 10:53:43 2017 -0700

    ia64: Check UNDEFWEAK_NO_DYNAMIC_RELOC

    Don't generate dynamic relocation against weak undefined symbol if it
    is resolved to zero.  FIXME: UNDEFWEAK_NO_DYNAMIC_RELOC may need to be
    checked in more places.

        PR ld/22269
        * elfnn-ia64.c (elfNN_ia64_check_relocs): Don't allocate
        dynamic relocation if UNDEFWEAK_NO_DYNAMIC_RELOC is true.
        (allocate_fptr): Don't allocate function pointer if
        UNDEFWEAK_NO_DYNAMIC_RELOC is true.
        (allocate_dynrel_entries): Don't allocate dynamic relocation
        if UNDEFWEAK_NO_DYNAMIC_RELOC is true.
        (set_got_entry): Don't set GOT entry if
        UNDEFWEAK_NO_DYNAMIC_RELOC is true.
        (set_pltoff_entry): Don't set PLTOFF entry if
        UNDEFWEAK_NO_DYNAMIC_RELOC is true.
        (elfNN_ia64_relocate_section): Don't install dynamic relocation
        UNDEFWEAK_NO_DYNAMIC_RELOC is true.

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