Optimization of strcpy with an offset outside the string

[smallmeter@netscape.net]

Daniel Jacobowitz <drow@mvista.com> wrote:

>On Mon, Dec 03, 2001 at 08:45:26PM -0600, Corey Minyard wrote:
>> In the PowerPC Linux kernel, at some points in time the reference to 
>> some constant data is at an offset (because the MMU is not set up yet). 
>> So you see expressions like:
>> 
>>   print("test" + offset);
>> 

>Is this still in the current PPC kernels?

Current stock 2.4.16.  I'm not using the PPC development kernels.

>
>Franz raised this issue several months ago, and I believe the verdict
>was that it was illegal.

Sounds good to me.

>
>I personally wouldn't mind a warning being generated, though!

How could we generate a warning?  They don't know the value of the
offset, and it may be perfectly legal.

-Corey
-- 




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