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[Bug ld/26656] power10 libstdc++.so segfault in __cxxabiv1::__cxa_throw


From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/26656] power10 libstdc++.so segfault in __cxxabiv1::__cxa_throw
Date: Mon, 28 Sep 2020 00:12:24 +0000

https://sourceware.org/bugzilla/show_bug.cgi?id=26656

--- Comment #5 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Alan Modra <amodra@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=12cf8b93da0ae155643d262235486fde5af72a80

commit 12cf8b93da0ae155643d262235486fde5af72a80
Author: Alan Modra <amodra@gmail.com>
Date:   Mon Sep 28 09:30:19 2020 +0930

    Re: PR26656, power10 libstdc++.so segfault in __cxxabiv1::__cxa_throw

    Some missing NULL checks meant a stub for a local symbol used a stub
    looking like the __tls_get_addr_opt stub.

            PR 26656
            * elf64-ppc.c (ppc_build_one_stub, ppc_size_one_stub): Check for
            NULL stub_entry->h before calling is_tls_get_addr.

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