Subject: Re: Patch for debug setcontext

From: Corey Minyard <[email-masked]>
Date: Thu, 29 Jul 2004 10:58:37 -0500

I misspoke a little.  Consider the following code in entry.S:

 #ifdef CONFIG_4xx
    /* Check whether this process has its own DBCR0 value */
    lwz    r0,PTRACE(r2)
    andi.    r0,r0,PT_PTRACED
    bnel-    load_4xx_dbcr0
 #endif

Do we need to add the book E define to this, too?

-Corey

Corey Minyard wrote:

>
> Kumar Gala wrote:
>
> > I'm guessing, this should really be #if defined(CONFIG_4xx) ||
> > defined(CONFIG_BOOKE)
> > There are a number of similar cases later in this code as well.
>
> That may be the case, but it is very confusing in entry.S.  The dbcr0
> register seems to only be defined on 4xx processor, not on book E.
> Look, for instance, at load_4xx_dbcr0:, it is only defined if 4xx is
> enabled, not if book E is enabled.
>
> -Corey
>
>

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