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Subject: Re: Problems with macros LOAD_REG_ADDR and LOAD_REG_IMMEDIATE
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Mitesh R. Meswani" <mmeswani@miners.utep.edu>
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Date: Tue, 23 Sep 2008 15:47:25 +1000
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On Mon, 2008-09-22 at 12:16 -0600, Mitesh R. Meswani wrote:
> I am having issues using LOAD_REG_ADDR and LOAD_REG_IMMEDIATE macros
> on a ppc64 kernel which I have tried on both 2.6.16 and 2.6.17
> kernels. 
>  
> I noticed that these macros by default loading value 0 instead of the
> actual address. Is this a bug of the compiler that can be fixed, I
> noticed when I did objdump for head_64.S on the following function 
> _GLOBAL(pSeries_secondary_smp_init) for the following instruction :
> LOAD_REG_IMMEDIATE(r13, paca)   /* Get base vaddr of paca array  */   
>  
> I noticed this in some calls, whereas some calls seem to get symbol address. 

How did you "notice" that ?

Ben.