Re: [PATCH] a more efficient BUG() macro

J . A . Magallon
2001-02-17T14:23:10Z

On 02.17 Hugh Dickins wrote:
> On Sat, 17 Feb 2001, Paul Gortmaker wrote:
> > I was poking around in a vmlinux the other day and was surprised at the
> > amount of repetitive crap text that was in there. For example, try:
> >
> > strings vmlinux|grep $PWD|wc -c
> >

If you try
strings vmlinux|grep /usr

you get a bunch of strings like:
..
/usr/src/linux/include/asm/io.h
..

One other couple of Kb. The problem is not that, but the string comes from:
/usr/src/linux/include/asm/io.h:
..(line 110)
/*
* Temporary debugging check to catch old code using
* unmapped ISA addresses. Will be removed in 2.4.
*/
#if 1
extern void *__io_virt_debug(unsigned long x, const char *file, int line);
extern unsigned long __io_phys_debug(unsigned long x, const char *file, int li
ne);
#define __io_virt(x) __io_virt_debug((unsigned long)(x), __FILE__, __LINE__)
//#define __io_phys(x) __io_phys_debug((unsigned long)(x), __FILE__, __LINE__)
#else
#define __io_virt(x) ((void *)(x))
//#define __io_phys(x) __pa(x)
#endif
..

As you see, it was not removed in 2.4...

--
J.A. Magallon $> cd pub
mailto:jamagallon@able.es $> more beer

Linux werewolf 2.4.1-ac17 #1 SMP Sat Feb 17 01:47:56 CET 2001 i686