Re: [PATCH] BUG preserve registers

Linus Torvalds
2002-02-09T19:52:41Z

On Sat, 9 Feb 2002, Andrew Morton wrote:
> >
>
> Is better, except the filename gets expanded multipe times into
> the object file. How about:
>
> #define BUG() \
> asm( "ud2\n" \
> "\t.word %0\n" \
> "\t.long %1\n" \
> : : "i" (__LINE__), "i" (__FILE__))

Even better.

That way you can actually totally remove the "verbose bug" config option,
because even the verbose BUG's aren't actually using up any noticeable
amounts of space.

This is all assuming that gcc doesn't create the string for inline
functions that aren't used, which it probably cannot, so maybe this
doesn't work out.

Linus