On Wed, 2002-01-02 at 15:55, Ivan wrote: > hi all, i'm compiling the linux-2.4.17-pre2-ben0 kernel, and in the gcc > command i see -msoft-float... like this > gcc -D__KERNEL__ -I/usr/src/linux-benh/include -Wall -Wstrict-prototypes > -Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common > -D__powerpc__ -fsigned-char -msoft-float -pipe -ffixed-r2 -Wno-uninitialized > -mmultiple -mstring -c -o pe2.o pe2.c > why gcc compiles the kernel with this option? i have a pismo, and kernel > settings are: > # > # Platform support > # > CONFIG_PPC=y > CONFIG_PPC32=y > CONFIG_6xx=y > # CONFIG_4xx is not set > # CONFIG_POWER3 is not set > # CONFIG_POWER4 is not set > # CONFIG_8xx is not set > # CONFIG_8260 is not set > in .config > and there are no references to soft-floats in the main Makefile > is everything ok?
Yes, it's in arch/ppc/Makefile. It's used because floating point code in the kernel would make things more complicated. And it doesn't really use floating point arithmetic (at least not a lot). -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast
