Cross compiling for the 1750A

[~Stack~]

On 02/05/2012 12:52 PM, Kai Ruottu wrote:
> 3.2.2012 15:54, Kai Ruottu kirjoitti:
> 
>> The "as1750" should understand the output from a '1750a' targeted
>> plain vanilla FSF GCC...
> 
> After being away from town during the weekend I made the 'as1750'
> from its sources - that succeeded without any problems - and tried
> it with the earlier made gcc-3.2.3 for 1750a target. But the build
> didn't succeed to continue with it :
> 
> /home/src/gcc-3.2.3-pl1/build/gcc/xgcc
> -B/home/src/gcc-3.2.3-pl1/build/gcc/ -nostdinc
> -B/home/src/gcc-3.2.3-pl1/build/1750a/newlib/ -isystem
> /home/src/gcc-3.2.3-pl1/build/1750a/newlib/targ-include -isystem
> /home/src/gcc-3.2.3-pl1/newlib/libc/include -B/usr/local/1750a/bin/
> -B/usr/local/1750a/lib/ -isystem /usr/local/1750a/include -O2  -DIN_GCC
> -DCROSS_COMPILE   -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -isystem ./include     -DIN_LIBGCC2
> -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../gcc
> -I../../gcc/. -I../../gcc/config -I../../gcc/../include  -DL_muldi3 -c
> ../../gcc/libgcc2.c -o libgcc/./_muldi3.o
> Output file extension must be one of:
>   .hex   => Tektronix Extended Hex
>   .ldm   => TLD Load Module
>   .llm   => TLD Logical Load Module
> make[2]: *** [libgcc/./_muldi3.o] Virhe 1
> 
> This was however expected because the "GCC Install / Specific Install
> Notes" tells :
> 
> -------------------- clip -------------------------
> 1750a-*-*
>   MIL-STD-1750A processors. This target is obsoleted in GCC 3.1.
> 
>   The MIL-STD-1750A cross con
guration produces output for as1750, an
>   assembler/linker available under the GNU General Public License for
>   the 1750A.
> <snip>
>   You should ignore a fatal error during the building of `libgcc'
>   (`libgcc' is not yet implemented for the 1750A.)
> 
>   The as1750 assembler requires the fi
le `ms1750.inc', which is found
>   in the directory `gcc/config/1750a'.
> -------------------- clip -------------------------
> 
> So I think the compiler was already there... What one should/could do
> with it, is left as a homework for someone who really is familiar with
> this system, "GCC for 1750a".
> 
> What comes to the "alternative" 'm1750a-coff' target, using the GNU
> binutils, with the 'cpp1750.zip' provided headers etc, with it, that
> is totally an another issue...

Thank you very much for your time and help with this. I do appreciate
it. Let me see how much of your work I can reproduce.

~Stack~

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