| To: | Ralf Baechle <ralf@oss.sgi.com> |
|---|---|
| Subject: | Re: Problems compiling . soft-float |
| From: | Dominic Sweetman <dom@algor.co.uk> |
| Date: | Tue, 26 Feb 2002 10:55:17 +0000 |
| Cc: | Jay Carlson <nop@nop.com>, mad-dev@lists.mars.org, Carlo Agostini <carlo.agostini@yacme.com>, linux-mips@oss.sgi.com |
| In-reply-to: | <20020226060236.A5293@dea.linux-mips.net> |
| References: | <20020225132559.A3500@dea.linux-mips.net> <F91731D8-2A73-11D6-AB38-0030658AB11E@nop.com> <20020226060236.A5293@dea.linux-mips.net> |
| Sender: | owner-linux-mips@oss.sgi.com |
| User-agent: | SEMI/1.13.7 (Awazu) CLIME/1.13.6 (中ノ庄) MULE XEmacs/21.1 (patch 14) (Cuyahoga Valley) (i386-redhat-linux) |
Ralf, > It's really a major pain. Softfp isn't defined in the ABI which assumes > an FPU is available. As the result there is no provision for mixing > softfp and fp-less code. > > Something for the binutils to-do list - ld should make mixing hard-fp > and soft-fp binaries impossible. Incremental changes to the ABI are pretty bad news. Isn't it avoidable in this case? It seems to me that soft-float programs are either carefully controlled test cases, or used as part of a 100% soft-float system. In the first case the programmer had better take care, and in the second the kernel should have been changed to kill any program with an FP op-code. -- Dominic Sweetman Algorithmics Ltd The Fruit Farm, Ely Road, Chittering, CAMBS CB5 9PH, ENGLAND phone +44 1223 706200/fax +44 1223 706250/direct +44 1223 706205 http://www.algor.co.uk |
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