Re: [PATCH 1/6] Generic implemenatation of BUG.

[Jeremy Fitzhardinge]

Andi Kleen wrote:
> > Because powerpc also records the function name, I added this to i386 and
> > x86-64 for consistency.  Strictly speaking the function name is redundant with
> > kallsyms, so perhaps it can be dropped from powerpc.
> >     
>
> It would be good to change it to use kallsyms() then.
>   

It does, in effect, when it prints the oops message and backtrace.

> >  
> >  #ifdef CONFIG_BUG
> > +
> > +#ifdef CONFIG_GENERIC_BUG
> > +struct bug_entry {
> > +	unsigned long	bug_addr;
> > +#ifdef CONFIG_DEBUG_BUGVERBOSE
> > +	const char	*file;
> > +	unsigned short	line;
> > +#endif
> > +	unsigned short	flags;
> >     
>
> Can't you put the flags into the high bits of the line? I don't think
> we have any 64kLOC files.

I thought about it, but it would still be padded out to 12 bytes on 
i386, and more on 64-bit platforms.  And it doesn't matter that much.


   J
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/