Re: 2.1.128 / current EGCS
Bernd Schmidt (crux@pool.informatik.rwth-aachen.de)
Fri, 13 Nov 1998 22:02:46 +0100 (MET)
>
> There's still a problem (last time I had forgotten to change the compiler
> in the arch/i386/Makefile... Guess I should stop trying stuff after being
> at the computer for 18 hours continually ;) ):
>
> gcc -D__KERNEL__ -I/usr/src/linux-AC/include -Wall -Wstrict-prototypes -O2
> -fomit-frame-pointer -pipe -s -fno-exceptions -pipe -s
> -fomit-frame-pointer -mk6 -march=k6 -DCPU=686 -c -o checksum.o
> checksum.c
> checksum.c: In function `csum_partial':
> checksum.c:200: Invalid `asm' statement:
> checksum.c:200: fixed or forbidden register 2 (cx) was spilled for class
> CREG.
> checksum.c: In function `csum_partial_copy_generic':
> checksum.c:538: Invalid `asm' statement:
> checksum.c:538: fixed or forbidden register 4 (si) was spilled for class
> SIREG.
That's a known problem; I didn't fix it yet in the patch I sent to Alan. The
asms in checksum.c are rather hard to convert as they'd need too many
operands if they were done properly. IMO the whole file should be replaced
with a new file checksum.S which is entirely in assembler - the only C code
in that file has a comment saying "old compatibility stuff, will be removed
soon".
Bernd
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