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RE: [PATCHv3, MIPS] Add support for O32 FPXX and program header based ABI information
- From: "Joseph S. 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>, "'macro at codesourcery dot com'" <macro at codesourcery dot com>
- Date: Sun, 19 Oct 2014 15:43:08 +0000
- Subject: RE: [PATCHv3, MIPS] Add support for O32 FPXX and program header based ABI information
- Authentication-results: sourceware.org; auth=none
- References: <6D39441BF12EF246A7ABCE6654B0235320F1A039 at LEMAIL01 dot le dot imgtec dot org> <Pine dot LNX dot 4 dot 64 dot 1410022033580 dot 21905 at digraph dot polyomino dot org dot uk> <6D39441BF12EF246A7ABCE6654B0235320F1EEE5 at LEMAIL01 dot le dot imgtec dot org> <Pine dot LNX dot 4 dot 64 dot 1410072108360 dot 17516 at digraph dot polyomino dot org dot uk> <6D39441BF12EF246A7ABCE6654B0235320F2BEE7 at LEMAIL01 dot le dot imgtec dot org> <Pine dot LNX dot 4 dot 64 dot 1410172051110 dot 14369 at digraph dot polyomino dot org dot uk> <6D39441BF12EF246A7ABCE6654B0235320F2C6F3 at LEMAIL01 dot le dot imgtec dot org>
On Sun, 19 Oct 2014, Matthew Fortune wrote:
> The patch is not dependent on the HWCAP patch. I have hardcoded the logic
Where does the definition of HWCAP_MIPS_MSA that this patch uses come
from?
> to assume that the HWCAPs are never set. This simply means that any ASE
> which was defined before MSA is accepted and anything from MSA to any
> future ASE is rejected.
Did we actually reach an architecture-independent consensus on the
desirability or otherwise of such checks for future ISA extensions (a
whole-toolchain issue, not just a glibc one)? Did the
architecture-independent discussion on this even get started?
--
Joseph S. Myers
joseph@codesourcery.com