printf in top.c

[Wei, Catherine]

Hi:
     Lately I'm trying to debug the top command in an embedded linux 
box. I've added some printf in top.c, for example:

fprintf(stderr,"catherine %lu %lu %lu %lu %lu 
%lu\n",used,mfree,shared,buffers,cached,total);
printf("catherine--------------------------------------");

in many place, even in the beginning of top_main() function, after 
building it, I copied the busybox bin file to my box, and the print log 
can not be printed out. I don't know why. Do I need some special config 
to build it? Could you please give me some advice? Thank you.

By the way, the purpose that I'm debugging top command is that some 
memory display information is not right due to the change of 
/proc/meminfo, we may need to make a patch for busybox in our system.

Best regard
Catherine