awozniak at mc.com
Wed Mar 9 15:37:25 CET 2005
Thanks for the kind reply.
Wolfgang Denk wrote:
> In message <422E60FD.50108 at mc.com> you wrote:
>>Having lots of fun with U-boot on our custom PPC440GX board. We're also
>>pretty far along on developing a loadable "u-boot application" for this
> Congrats :-)
>>I've noticed that -nostdinc is used for many of the compiles. When I
> It should be used for _all_ compiles of files that get linked into
> the U-Boot image. Please point out if we're missing any (of course it
> is NOT used for any tools that will run on the host system, like
> mkimage etc.).
I haven't seen any yet.
>>attempted to include stdlib.h and atoi() in our application, the
>>compiler could not find the file.
> That's a good thing as it prevented you to do a stupind thing ;-)
>>Further examination of the U-Boot code-base shows little or no use of
>>stdlib.h. Is this to keep the overall binary size to a minimum?
> It is to make U-Boot self-contained, i. e. independent of any
> external libraries etc.
That's a good thing.
>>Any other reason for not adding this library to build? One simple
> Yes. You don;t need it.
>>alternative is to include our own atoi() source code.
> Don't reinvent the wheel. Don't bloat the code by multiple implemen-
> tations of the same function. Use simple_strtoul() instead.
Ahhh, I was wondering how U-Boot handled this common task. I didn't look
> Best regards,
> Wolfgang Denk
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