On Sat, 2004-12-25 at 21:34, Marcelo E. Magallon wrote: > Hi, > > mesa upstream includes configuration files for three Sparc > architectures: sparc, sparc5 and ultrasparc. <snip> > 3. Does this make sense? AFAIUI the v8 has divide instructions which > make it much more bearable than generic sparc code. > <snip> The exact flags depend a bit on the version of gcc you're using, assuming you're using >= 3.3 :
Broadly speaking see http://gcc.gnu.org/onlinedocs/gcc-3.3/gcc/SPARC-Options.html#SPARC-Options However, for what it's worth I would be tempted to rename (upstream) the three architectures sparcv7, sparcv8 and sparcv9, respectively using CFLAGS=-mcpu=v7 -mtune=cypress CFLAGS=-mcpu=v8 -mtune=v8 CFLAGS=-mcpu=v9 -mtune=ultrasparc If you're using >= 3.4 then add -mvis to the sparcv9 architecture. This is morally the same as what you had before and gives a good portability / optimality trade off. Then build the sparcv8 version for the default package for the (Debian) sparc architecture and create a second package with an optimised version for UltraSparc machines (using the upstream sparcv9). HTH Cheers, - Martin -- Martin [EMAIL PROTECTED] "Seasons change, things come to pass"
