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RE: [PATCHv4, MIPS] Add support for O32 FPXX and program header based ABI information
- From: Joseph Myers <joseph at codesourcery dot com>
- To: Matthew Fortune <Matthew dot Fortune at imgtec dot com>
- Cc: "'libc-alpha at sourceware dot org'" <libc-alpha at sourceware dot org>, "Moore, Catherine (Catherine_Moore at mentor dot com)" <Catherine_Moore at mentor dot com>, 'Andrew Pinski' <pinskia at gmail dot com>, "Rich Felker (dalias at libc dot org)" <dalias at libc dot org>, Rich Fuhler <Rich dot Fuhler at imgtec dot com>, "Maciej W. Rozycki (macro at linux-mips dot org)" <macro at linux-mips dot org>
- Date: Tue, 6 Jan 2015 17:10:16 +0000
- Subject: RE: [PATCHv4, MIPS] Add support for O32 FPXX and program header based ABI information
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- References: <6D39441BF12EF246A7ABCE6654B0235320F8DFA4 at LEMAIL01 dot le dot imgtec dot org> <alpine dot DEB dot 2 dot 10 dot 1412311718240 dot 26199 at digraph dot polyomino dot org dot uk> <alpine dot DEB dot 2 dot 10 dot 1412312210030 dot 26199 at digraph dot polyomino dot org dot uk> <6D39441BF12EF246A7ABCE6654B0235320F967D4 at LEMAIL01 dot le dot imgtec dot org>
On Tue, 6 Jan 2015, Matthew Fortune wrote:
> + GCC 5.0 onwards:
I think that should say GCC 5 rather than 5.0.
> + It is strongly recommended that all o32 system libraries are built using the
> + new o32 FPXX ABI (-mfpxx) to facilitate the transition as this is compatible
> + with the original and all new o32 ABI extensions. Configure a native
> + MIPS GCC compiler using --with-fp-32=xx to set this by default.
I don't think that it's relevant whether the compiler is native or cross.
It would also seem appropriate to identify the minimum binutils version to
with with FPXX.
--
Joseph S. Myers
joseph@codesourcery.com