e500 libm patches.

[Joakim Tjernlund]

Hi Steve

I started to look at your math patches again :)

> -----Original Message-----
> From: Steve Papacharalambous [mailto:stevep at freescale.com] 
> Sent: den 23 februari 2007 14:22
> To: uclibc at uclibc.org
> Cc: Joakim Tjernlund
> Subject: e500 libm patches.
> 
> Hi,
> 
> I've done an initial port of the e500 libm fpu code to uclibc, and
> modified them to include the comments from Joakim Tjernlund.
> 
> These patches can be downloaded from the website:
> http://www.bitshrine.org/gpp/
> 
> The patches move all the existing code in libm/powerpc to
> libm/powerpc/classic and put the e500 code in libm/e500/fpu
> 
> Patch #1:
> http://www.bitshrine.org/gpp/uclibc-20070119-e500-libm-classic.patch
> 
> This patch move all the existing files in libm/powerpc to
> libm/powerpc/classic.
> 
> Patch #2:
> http://www.bitshrine.org/gpp/uclibc-20070216-e500-libm-e500.patch
> 
> This patch add e500 code to libm/powerpc/e500 and 
> libm/powerpc/e500/fpu
> 
> Patch #3:
> http://www.bitshrine.org/gpp/uclibc-20070216-e500-libm-string.patch
> 
> This patch add the e500 string conversion functions.

There are a lot of string funs(ato..., strto..) that nobody
uses. Who is the user? gcc?
Is it possible to build a non math enabled uClibc system?

The file machine-ieeefp.h contains a lot of non powerpc
code, why is this file placed here?

There also appers to be long double support in here
and uClibc does not support long double yet and when
it does there will probably be wrapper funs that
maps the long double to just double to keep the
size down. Lets drop long double for now.

fprrest.c  fprsave.c are empty files 

There are a few:
versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2); 
that's is very glibc only ATM.


Please send new patches relative these and not against SVN as I
have already applied these patches locally.

 Jocke

> 
> Patch #4:
> http://www.bitshrine.org/gpp/uclibc-20070119-e500-libm-changes.patch
> 
> This patch make the changes to the Makefiles to build the appropriate
> set of powerpc code.
> 
> I'd be willing to help with the effort to get the patches merged and
> maintained,
> 
> 
> Best regards,
> 
> Steve
> 
> 
> 
> 
>