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Re: [PATCH] change GLIBC PPC64/ELF2 ABI default to 2.17
- From: Andreas Jaeger <aj at suse dot com>
- To: munroesj at us dot ibm dot com, libc-alpha at sourceware dot org
- Cc: Adhemerval Zanella <azanella at linux dot vnet dot ibm dot com>
- Date: Thu, 30 Jan 2014 15:11:06 +0100
- Subject: Re: [PATCH] change GLIBC PPC64/ELF2 ABI default to 2.17
- Authentication-results: sourceware.org; auth=none
- References: <1391008726 dot 16702 dot 105 dot camel at spokane1 dot rchland dot ibm dot com>
On 01/29/2014 04:18 PM, Steven Munroe wrote:
> Starting a new platform is always more complicated then we would like
> and we often find examples where the needs of the larger Linux community
> trumps our initial assumptions.
>
> Each distribution decides how it will support a new platform and we have
> requests to allow for back-ports of PPC64LE ELF2 to a GLIBC-2.17.
>
> To support the larger Linux community we need to insure forward
> compatibility across releases, and this implies setting the GLIBC
> powerpc.*le-.*-linux.* default back 2.17.
>
> We are not asking to apply this patch retroactively to the GLIBC-2.17
> source. But we like to get this patch accepted upstream to serve notice
> to all involved (in PPC64LE) that GLIBC-2.17 is the oldest symbol set,
> and promise this it final word on the topic.
>
> We also ask that all distributions apply this patch and ELF2 ABI patches
> if they planing to support the PPC64LE platform and doing a back port of
> the to GLIBC-2.17 or 2.18.
I'm really surprised by this change at this point of time.
Since there are apparently backported 2.17 and 2.18 versions out there,
let me ask a different question: Which ABI will be the one that you
promise stability for?
My expectation is that the official glibc 2.19 release to be the
reference version and if there are any incompatibilities between the
backports and the glibc 2.19 release, the backports need to be fixed.
Can we all agree on using glibc 2.19 as the reference for ABI stabilitiy?
I'd like to see a signoff from the power maintainers on this one,
Andreas
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