Date: Mon, 31 Aug 1998 04:16:36 -0700 From: "Jordan K. Hubbard" <jkh@time.cdrom.com> To: John Birrell <jb@cimlogic.com.au> Cc: current@FreeBSD.ORG Subject: Re: The Day After, initial reports. Message-ID: <11777.904562196@time.cdrom.com> In-Reply-To: Your message of "Mon, 31 Aug 1998 20:45:51 %2B1000." <199808311045.UAA19965@cimlogic.com.au>
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Nope, I'm afraid those changes were innocuous. This is something
weirder, I think. The compiler is spitting out something which the
ELF assembler doesn't like, to wit:
su-2.01# /usr/libexec/elf/as -v -o machdep.o machdep.s
GNU assembler version 2.8.1 (i386-unknown-freebsdelf), using BFD version 2.8.1
machdep.s: Assembler messages:
machdep.s:919: Error: operands given don't match any known 386 instruction
machdep.s:920: Error: operands given don't match any known 386 instruction
if you look at the location in question, the error is on:
..
cmpl %esi,curpcb
jne .L352
movl _udatasel,%ecx
#APP
mov %ecx,%fs <-- XXX these two
mov %ecx,%gs lines XXX -- >
#NO_APP
.L352:
movl 8(%ebp),%ecx
movl 272(%ecx),%eax
andb $254,212(%eax)
%fs? %gs? Interesting! :-)
> Jordan K. Hubbard wrote:
> > The make-aout-to-elf target seems to have worked fine, but building
> > the GENERICupgrade kernel dies with:
> >
> > cc -c -O -pipe -Wreturn-type -Wcomment -Wredundant-decls -Wimplicit -Wnest
ed-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline -
Wuninitialized -ansi -nostdinc -I- -I. -I../.. -I../../../include -DKERNEL -i
nclude opt_global.h ../../i386/i386/machdep.c
> > {standard input}: Assembler messages:
> > {standard input}:893: Error: operands given don't match any known 386 instr
uction
> > {standard input}:894: Error: operands given don't match any known 386 instr
uction
> > *** Error code 1
>
> Is this version 1.305 of machdep.c ????
>
> Try backing out:
>
> 1.305 +7 -1 src/sys/i386/i386/machdep.c
> 1.36 +1 -12 src/sys/i386/include/cpu.h
> 1.45 +4 -2 src/sys/i386/include/param.h
> 1.16 +1 -2 src/sys/kern/kern_mib.c
>
> which were from a commit that Kato did at 1998/08/31 01:41:58 PDT.
>
> Just a hunch. 8-)
>
> --
> John Birrell - jb@cimlogic.com.au; jb@freebsd.org http://www.cimlogic.com.au/
> CIMlogic Pty Ltd, GPO Box 117A, Melbourne Vic 3001, Australia +61 418 353 137
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