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[Bug dynamic-link/23240] LD_PRELOAD doesn't work with non-lazy binding and IFUNC


https://sourceware.org/bugzilla/show_bug.cgi?id=23240

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The branch, hjl/pr23240/fw has been created
        at  3bc6d308ef8ba549e0ef072692903ea2afa883d1 (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=3bc6d308ef8ba549e0ef072692903ea2afa883d1

commit 3bc6d308ef8ba549e0ef072692903ea2afa883d1
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sun May 27 07:15:35 2018 -0700

    Check non-lazy binding with LD_PRELOAD and weak reference

    Check non-lazy binding with

    1. Reference to unrelocated IFUNC function with LD_PRELOAD.
    2. Weak reference.

        [BZ #23176]
        [BZ #23240]
        * elf/Makefile (tests): Add reldep6a.
        (tests-internal): Add ifuncpreload1
        (modules-names): Add ifuncpreloadmod1a and ifuncpreloadmod1b.
        ($(objpfx)reldep6a): New.
        ($(objpfx)reldep6a.out): Likewise.
        (reldep6a-ENV): Likewise.
        ($(objpfx)ifuncpreload1): Likewise.
        ($(objpfx)ifuncpreload1.out): Likewise.
        (ifuncpreload1-ENV): Likewise.
        * elf/ifuncpreload1.c: New file.
        * elf/ifuncpreloadmod1a.c: Likewise.
        * elf/ifuncpreloadmod1b.c: Likewise.
        * elf/reldep6a.c: Likewise.

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