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Re: [PATCH 1/2] Add support for O32 FPXX ABI
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Richard Sandiford <rdsandiford at googlemail dot com>
- Cc: Matthew Fortune <Matthew dot Fortune at imgtec dot com>, "macro at codesourcery dot com" <macro at codesourcery dot com>, "binutils at sourceware dot org" <binutils at sourceware dot org>, Rich Fuhler <Rich dot Fuhler at imgtec dot com>
- Date: Wed, 23 Apr 2014 20:43:12 +0000
- Subject: Re: [PATCH 1/2] Add support for O32 FPXX ABI
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- References: <6D39441BF12EF246A7ABCE6654B023534DAAAB at LEMAIL01 dot le dot imgtec dot org> <87a9c0xkje dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534DC37D at LEMAIL01 dot le dot imgtec dot org> <87ha655s3i dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534DC8CF at LEMAIL01 dot le dot imgtec dot org> <871tx9z35k dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534DFC40 at LEMAIL01 dot le dot imgtec dot org> <878urd37t7 dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534DFD9B at LEMAIL01 dot le dot imgtec dot org> <87fvll1ha9 dot fsf at sandifor-thinkpad dot stglab dot manchester dot uk dot ibm dot com> <6D39441BF12EF246A7ABCE6654B023534E07CB at LEMAIL01 dot le dot imgtec dot org> <87k3awnuf1 dot fsf at talisman dot default> <6D39441BF12EF246A7ABCE6654B023534E0F50 at LEMAIL01 dot le dot imgtec dot org> <87ppknzv7m dot fsf at talisman dot default>
On Fri, 11 Apr 2014, Richard Sandiford wrote:
> Perhaps also an ABI revision number, so that we can bump it when
> adding things that old loaders won't be able to handle correctly.
We already have such a system in binutils / glibc, whereby EI_ABIVERSION
is set by ld and checked by ld.so, it's just bitrotten (apparently) in
various ways. See
<https://sourceware.org/ml/libc-alpha/2014-01/msg00375.html> for my most
recent notes on this.
--
Joseph S. Myers
joseph@codesourcery.com