This hasn't come back to me from the lists in the 16 hours since I sent it, so let's try again:
Adam C Powell IV wrote: > Daniel Jacobowitz wrote: > > > On Tue, Oct 17, 2000 at 07:09:27PM -0400, Camm Maguire wrote: > > > > This reminds me, atlas doesn't build on PPC. debian/config.expect needs > > > > the attached patch, and then it fails while trying to compile > > > > tune/sysinfo/Linux/muladd.c: the compiler eats up all available memory > > > > (96 MB) and swap (135 MB), then X crashes and boots me back to gdm! > > > > > > > > > > An update here. This is definitely a compiler bug on this platform. > > > Removing the default -funroll-loops default optimization option delays > > > compilation failure somewhat further, but still winds up with an > > > "Illegal instruction" (!) produced in the assembly. Even with just > > > -g, the xfindCE binary segfaults. I'll try to find time to file a bug > > > against the compiler, but it looks hopeless for atlas on PPC for now. > > > > > > Perhaps I could try gcc 2.7.3, if it existed on PPC. Anyone have any > > > experience which might indicate that this would be worth a try? Or > > > any PPC users care to share an insight as to what compiler weakness is > > > most likely being touched on here? > > > > I'll let you know - there are probably going to be new compiler > > packages in a week or two, and they might address this. GCC 2.7.3 does > > not exist on powerpc, and never has (that we admit to anymore). > > > > A small testcase would be appreciated. > > Here's the compile command (and result) for muladd.c which is pretty small: > > /usr/bin/gcc -DL2SIZE=262144 -I/usr/src/packages/atlas-3.0/include > -I/usr/src/packages/atlas-3.0/include/Linux -DAdd__ -DStringSunStyle > -fomit-frame-pointer -O3 -funroll-all-loops -c muladd.c > VM: killing process cc1 > gcc: Internal compiler error: program cc1 got fatal signal 9 > > I've put the cpp output in http://lyre.mit.edu/~powell/debs/muladd.E (it > should > show up there within a few seconds). > > Zeen, > > -Adam P. > > Welcome to the best software in the world today cafe!
