[PATCH] x86/Intel: fix indirect far jmp/call with operand size specified

[Andreas Jaeger]

"H.J. Lu" <hjl.tools@gmail.com> writes:

> On Thu, Feb 21, 2008 at 05:49:34PM +0100, Andreas Jaeger wrote:
>> "H.J. Lu" <hjl.tools@gmail.com> writes:
>> 
>> > Hi Jan,
>> >
>> > Do you have testcases?
>> 
>> netboot fails with:
>> 
>> runtime.S86: Assembler messages:
>> runtime.S86:388: Error: suffix or operands invalid for `jmp'
>> runtime.S86:393: Error: suffix or operands invalid for `jmp'
>> runtime.S86:398: Error: suffix or operands invalid for `jmp'
>> 
>
> Can you provide a preprocessed source with command line
> options to reproduce it?

The call is:
reger:/usr/src/packages/BUILD/netboot-0.10.2/mknbi-mgl/runtime> gcc -E -nostdinc -I/usr/src/packages/BUILD/netboot-0.10.2/include -I/usr/src/packages/BUILD/netboot-0.10.2/mknbi-mgl -x assembler-with-cpp -traditional-cpp -C -P -DHAVE_CONFIG_H -D_ASSEMBLY_ -D_TARGET_   -o runtime.s86 runtime.S86
reger:/usr/src/packages/BUILD/netboot-0.10.2/mknbi-mgl/runtime> /usr/i586-suse-linux/bin/as  -o runtime.o86 runtime.s86

runtime.S86: Assembler messages:
runtime.S86:388: Error: suffix or operands invalid for `jmp'
runtime.S86:393: Error: suffix or operands invalid for `jmp'
runtime.S86:398: Error: suffix or operands invalid for `jmp'

I'm appending the runtime.s86 file.

The lines with problems are the following:

	jmp	dword ptr cs:[oldi0]    # line 388

3:	cmp	si,0x0005
	jne	4f
	pop	si			# call old interrupt 4
	jmp	dword ptr cs:[oldi4]    # line 393

4:	cmp	si,0x0004
	jne	6f
	pop	si			# call old interrupt 5
	jmp	dword ptr cs:[oldi5]    # line 398


Andreas

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-- 
 Andreas Jaeger, Director Platform/openSUSE, aj@suse.de
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