[U-Boot] [PATCH 1/2 v6] Make libgcc inclusion from common Makefile overridable by platform config file

[Mike Frysinger]

On Wednesday 15 July 2009 18:18:20 Scott Wood wrote:
> On Mon, Jul 13, 2009 at 05:25:35AM -0400, Mike Frysinger wrote:
> > On Sunday 12 July 2009 14:29:46 Wolfgang Denk wrote:
> > > You mean it is impossible to build a tool chain for ARM that can be
> > > used to build U-Boot, Linux, and user space code?  I can't believe
> > > that ARM support in GCC is that seriously broken.
> >
> > basically, that is correct.  arm's libgcc is just that whacky because of
> > all the different ABIs that exist.  although citing the Linux kernel here
> > may not be appropriate because they specifically avoid libgcc -- because
> > it's so screwed up.
>
> Isn't that what multilib is for?

yes, but Jean is attempting to deal with reality of arm toolchains rather than 
telling users to go install one that isnt broken

> > last i looked, some of the math functions in arm's libgcc depended on C
> > library functions (like raise() and abort()).  this is the kind of stuff
> > Jean is trying to avoid.
>
> It seems pretty reasonable for U-Boot to provide functions like
> raise()/abort() that take the place of a hardware exception, and display
> an error message.

i disagree here.  how much of the C library are you proposing we implement ?  
if libgcc keeps calling more and more functions, you suggest we keep adding 
stubs for it ?  seems like a never ending losing battle where we get screwed.  
(well, *i'm* not getting screwed because i dont care about u-boot on arm ;])
-mike
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