[Bug dynamic-link/27646] Linker error for non-existing NSS symbols (e.g. _nss_files_getcanonname_r) from within a dlmopen namespace.

["fweimer at redhat dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27646

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |2.34
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #7 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for glibc 2.34 by:

commit c2059edce20c124d1a99f1a94cc52e83b77a917a
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Jun 17 15:06:43 2021 +0200

    elf: Use _dl_catch_error from base namespace in dl-libc.c [BZ #27646]

    dlerrror_run in elf/dl-libc.c needs to call GLRO (dl_catch_error)
    from the base namespace, just like the exported dlerror
    implementation.

    Fixes commit b2964eb1d9a6b8ab1250e8a881cf406182da5875 ("dlfcn:
    Failures after dlmopen should not terminate process [BZ #24772]").

    Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

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