Re: Altera NIOS II Support

[Joel Sherrill <joel dot sherrill at oarcorp dot com>]

Howland Craig D (Craig) wrote:
> ieeefp.h says "NIOS2 can be big or little endian" and has a
> __nios2_big_endian__  to decide which, the same conditionals being
> checked in config.h.  But I didn't see anything that would make this a
> configure option, nor a note pointing out that the decision needs to be
> made (just the implication in the #if-else).  That is, how does the user
> choose which endianess they're going to build with?
>   
The Altera GCC is supports both endians and you build it
for one or the other.  This is from their old gcc's config.gcc

+nios2-*-*_eb)
+       tm_file="elfos.h nios2/big.h ${tm_file}"
+       ;;
+nios2-*-*)
+       tm_file="elfos.h ${tm_file}"
+       ;;

For the licensing questions, I am letting the person
working on the NIOS II RTEMS port get Altera to answer that
since they have already been in contact with them.

So this patch needs to be ignored until the licensing is clear.

--joel
> 				Craig
>
> -----Original Message-----
> From: newlib-owner@sourceware.org [mailto:newlib-owner@sourceware.org]
> On Behalf Of Joel Sherrill
> Sent: Thursday, March 19, 2009 5:36 PM
> To: newlib@sources.redhat.com
> Subject: Altera NIOS II Support
>
> Hi,
>
> This is based on the Altera tools that
> are available from their ftp site.
> It updates their work from an old newlib
> to 1.17.0.
>
> You will have to regenerate files.  I didn't
> bother to include them.
>
> This is enough to work with RTEMS if you use
> their tool port. 
>
> 2009-3-19  Joel Sherrill <joel.sherrill@oarcorp.com>
>
>     * configure.host, libc/include/machine/ieeefp.h,
>     libc/include/machine/setjmp.h, libc/include/sys/config.h,
>     libc/machine/configure.in, libc/machine/nios2/configure.in,
>     libc/machine/nios2/Makefile.am, libc/machine/nios2/setjmp.S,
>     libc/sys/rtems/machine/stdint.h, libc/sys/rtems/sys/dirent.h:
>     Merge Altera NIOS II support.
>
> --joel
>   


--
Joel Sherrill, Ph.D.             Director of Research & Development
joel.sherrill@OARcorp.com        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
  Support Available             (256) 722-9985