On Tue, 20 Jan 2004, Dimitri Torfs wrote: > > It took a bit longer than I planned, sorry. Anyway, here are two > > functionally equivalent patches, for 2.4 and the head, that remove an ISA > > specification if a tool supports "-march=" and "-mabi=" at the same time. > > Please try the appropriate one. > > Tried the head one, it had some typos (patch follows). Unfortunately, as I wrote Oops, thanks for the correction -- as I still have only gcc 2.95.4, I wasn't able to see the typos immediately. > earlier, gcc-3.2 doesn't set the ISA correctly when using -march=, so > it doesn't work for 3.2. But do we care of the ISA? I don't think so -- it's just a leftover from the days the MIPS world was less complicated. If gcc 3.2 correctly emits code for the selected processor and obeys the selected ABI, then everything is fine. Are the binaries correct? If so, I'd like to apply the patch. The few remaining bits in <asm/asm.h> that still depend on _MIPS_ISA should be rewritten to make use of appropriate CONFIG_CPU_HAS_* settings. Or perhaps we can just scrap them -- nothing uses them at all (and current gcc is able to emit conditional move instructions itself). OTOH, for hand-coded assembly it might be a good idea to put them into gas as macros -- similarly to what gas does for the Alpha for certain instructions that are only available with later architecture revisions. I'll work on it in some spare time. Maciej -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +
