linux-kernel - Re: [PATCH] AMD Thermal Interrupt Support

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Date:	Wed, 9 Jan 2008 03:37:14 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Russell Leidich <rml@...gle.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Torsten Kaiser <just.for.lkml@...glemail.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, valdis.kletnieks@...edu,
	Tim Hockin <thockin@...gle.com>
Subject: Re: [PATCH] AMD Thermal Interrupt Support

On Tue, Jan 08, 2008 at 06:28:18PM -0800, Russell Leidich wrote:
> On Jan 8, 2008 3:52 PM, Andi Kleen <andi@...stfloor.org> wrote:
> > >  ENTRY(thermal_interrupt)
> > > -     apicinterrupt THERMAL_APIC_VECTOR,smp_thermal_interrupt
> > > +     apicinterrupt THERMAL_APIC_VECTOR,smp_thermal_interrupt(%rip)
> >
> > Are you sure a * is not needed?  I would have thought it would jump
> > to the variable instead of through it. But if it works it's ok for me.
> 
> I will test to make sure it works.  I don't think stars mean anything
> in AT&T-style X86-64.

% cat t.s
        call foo
        call *foo
% as -o t.o t.s
% objdump -S t.o

t.o:     file format elf64-x86-64

Disassembly of section .text:

0000000000000000 <.text>:
   0:   e8 00 00 00 00          callq  0x5
   5:   ff 14 25 00 00 00 00    callq  *0x0

-Andi
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