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[Bug libc/20098] FAIL: debug/backtrace-tst on hppa


https://sourceware.org/bugzilla/show_bug.cgi?id=20098

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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fa13872f59b4f42946a905060208086ce147322e

commit fa13872f59b4f42946a905060208086ce147322e
Author: John David Anglin <danglin@gcc.gnu.org>
Date:   Sat Aug 12 15:45:28 2017 -0400

    Fix [BZ 20098].

        [BZ 20098]
        * sysdeps/hppa/dl-fptr.c (_dl_read_access_allowed): New.
        (_dl_lookup_address): Return address if it is not consistent with
        being a linker defined function pointer.  Likewise, return address
        if address and function descriptor addresses are not accessible.

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

Summary of changes:
 ChangeLog              |    6 ++++
 sysdeps/hppa/dl-fptr.c |   63 ++++++++++++++++++++++++++++++++++-------------
 2 files changed, 51 insertions(+), 18 deletions(-)

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