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Re: ppc64le: expected localentry:0 `pthread_condattr_destroy'
- From: Carlos O'Donell <carlos at redhat dot com>
- To: Josh Stone <jistone at redhat dot com>, libc-alpha at sourceware dot org, binutils at sourceware dot org
- Date: Wed, 26 Jul 2017 15:13:49 -0400
- Subject: Re: ppc64le: expected localentry:0 `pthread_condattr_destroy'
- Authentication-results: sourceware.org; auth=none
- References: <00ac3cbe-47f4-ccf0-3017-c1f2ab43db20@redhat.com>
On 07/25/2017 09:11 PM, Josh Stone wrote:
> Hi folks,
>
> I mentioned this regression to fweimer, and he suggested I should bring
> it up to libc-alpha and binutils. I was just trying to rebuild rustc on
> Fedora Rawhide, and ppc64le alone failed with this localentry error.
> Florian suspected that a binutils update in particular now enabled use
> of PPC64_OPT_LOCALENTRY.
>
> I reproduced the regression from old to new binutils, and uploaded those
> artifacts here if anyone else wants to inspect them:
>
> https://jistone.fedorapeople.org/rust-1.19.0-stage1-ppc64le-binutils-2.28.tar.xz
> https://jistone.fedorapeople.org/rust-1.19.0-stage1-ppc64le-binutils-2.29.tar.xz
>
> rust-1.19.0-stage1-ppc64le-binutils-2.28:
> # LD_LIBRARY_PATH=./lib ./bin/rustc -V
> rustc 1.19.0
>
> rust-1.19.0-stage1-ppc64le-binutils-2.29:
> # LD_LIBRARY_PATH=./lib ./bin/rustc -V
> ./bin/rustc: error while loading shared libraries:
> ./lib/libstd-c3a1748e15265da7.so: expected localentry:0
> `pthread_condattr_destroy'
Right, this looks like a ppc64le-specific (ELFv2) regression in the unreleased
binutils 2.29. I've not seen this with the release 2.28.
--
Cheers,
Carlos.