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Re: [PATCH] PR 68192 Export AIX TLS symbols
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: David Edelsohn <dje dot gcc at gmail dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Tue, 3 Nov 2015 15:47:56 +0100
- Subject: Re: [PATCH] PR 68192 Export AIX TLS symbols
- Authentication-results: sourceware.org; auth=none
- References: <CAGWvnym=SO-wLDm+VKNPc2BJ20o8AOzpaRfkU1yFBsVLeQWhjA at mail dot gmail dot com>
On Tue, Nov 3, 2015 at 3:23 PM, David Edelsohn <dje.gcc@gmail.com> wrote:
> TLS symbols in AIX display a new, different symbol type in nm output.
> Libtool explicitly creates a list of exported symbols for shared
> libraries using nm and does not recognize the new TLS symbols, so
> those symbols are not exported.
>
> This is a regression for TLS support on AIX.
>
> This patch updates libtool.m4 in GCC and configure for libstdc++-v3,
> libgfortran, and libgomp. I would like to apply the patch to GCC
> while I simultaneously work with the Libtool community to correct the
> bug upstream. I also would like to backport this to GCC 5.2 and GCC
> 4.9.x.
What does this do to the set of exported symbols esp. on branches.
Does AIX have library versions?
> I have not been able to run the correct versions of autoconf to
> regenerate configure directly. I either can edit the files directly
> or I would appreciate someone helping me to regenerate configure in
> all library directories.
>
> Bootstrapped on powerpc-ibm-aix7.1.0.0.
>
> * libtool.m4 (export_symbols_cmds) [AIX]: Add global TLS "L" symbols.
> * libstdc++-v3/configure: Regenerate.
> * libgfortran/configure: Regenerate.
> * libgomp/configure: Regenerate.
>
> Thanks, David