ppc64le: expected localentry:0 `pthread_condattr_destroy'

[Carlos O'Donell]

On 07/27/2017 12:04 AM, Alan Modra wrote:
>>>> On 07/25/2017 09:11 PM, Josh Stone wrote:
>>>>> ./bin/rustc: error while loading shared libraries:
>>>>> ./lib/libstd-c3a1748e15265da7.so: expected localentry:0
>>>>> `pthread_condattr_destroy'
> 
> You will get this error if the link-time version of a function symbol
> is seen as localentry:0 (ie. not needing a global entry point due to
> not needing a valid r2 toc pointer), but the run-time version does.
> 
> The most likely thing is that your library was linked against a stub
> version of pthread_condattr_destroy.  Making the stub weak will
> disable the generation of the optimized localentry:0 plt call code.
> So will linking with -Wl,--no-plt-localentry
 
The new binutils 2.29 also appears to break glibc's tst-tlsopt-ppc test.

Which fails with:
tls_index not optimized, binutils too old?

I don't know if this is a test invariant being broken by the new binutils
in which case the test needs updating.

Tulio, Are you seeing this?

-- 
Cheers,
Carlos.