Messages in this thread | | | Date | Sun, 27 Aug 2006 22:03:38 +0200 (MEST) | From | Jan Engelhardt <> | Subject | Re: [PATCH RFC 3/6] Use %gs as the PDA base-segment in the kernel. |
| |
>> >> +1: movw GS(%esp), %gs >> > >> > movl is recommended in 32bit mode >> >> arch/i386/kernel/entry.S: Assembler messages: >> arch/i386/kernel/entry.S:334: Error: suffix or operands invalid for `mov' > >Looks like a gas bug to me.
So the suffixing (MOVW vs MOVL) does not depend on the source operand? %gs is only 16 bit wide so MOVW seems reasonable. If the destination operand was a 32 bit location, something like MOVZX would be needed, would not it?
Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |