On Monday 17 November 2008 16:17:54 Graeme Russ wrote:
I have a quick question I would like the groups opinion on:
What is the rule-of-thumb for defining a function as weak versus using conditional compilation (or #defines)?
For example, I am doing some work on cleaning up the structure and design of the i386 / sc520 code. Specifically, some functionality such as interrupts, timers and CPU reset have more 'powerful' implementations in the sc520.
Should I declare these functions as weak in the core i386 code and use a config #define to override or should I seperate the functions out into seperate source files and use conditional compilation?
i wonder if weak functions that are always satisfied and used unconditionally result in larger code, or if this is only a problem for people whose linkers lack lazy relaxation support ? -mike