Re: Canadian build for AVR

["jonsmirl at gmail dot com" <jonsmirl at gmail dot com>]

I'm making some progress. I'm currently stuck on this error.

gcc -c -DIN_GCC    -DGENERATOR_FILE -I. -Ibuild -I../.././gcc
-I../.././gcc/build -I../.././gcc/../include -I./../intl
-I../.././gcc/../libcpp/include  -I../.././gcc/../libdecnumber
-I../.././gcc/../libdecnumber/dpd -I../libdecnumber    \
-o build/genflags.o ../.././gcc/genflags.c
In file included from ../.././gcc/rtl.h:28:0,
                 from ../.././gcc/genflags.c:28:
../.././gcc/real.h:77:13: error: size of array 'test_real_width' is negative
make[6]: *** [build/genflags.o] Error 1
make[6]: Leaving directory
`/home/apps/openwrt/build_dir/target-mipsel_uClibc-0.9.33.2/gcc-4.7.2/host-mipsel-openwrt-linux-uclibc/gcc'
make[5]: *** [all-gcc] Error 2

On Thu, May 9, 2013 at 8:15 AM, jonsmirl@gmail.com <jonsmirl@gmail.com> wrote:
> On Thu, May 9, 2013 at 6:49 AM, Martin Guy <martinwguy@gmail.com> wrote:
>> Hi Jon
>>
>> On 9 May 2013 00:32, jonsmirl@gmail.com <jonsmirl@gmail.com> wrote:
>>> I've been trying to do a Canadian build for the Avr32 without much
>>> success. I get lots of different compile failures depending on which
>>> releases of the various components I pick.
>>>
>>> I used this approach..
>>>
>>> apt-get install avc-gcc, etc...
>>
>> Sorry, are you working for the AVR or AVR32? They are two totally
>> different processors, AVR has GCC support in mainline but not in
>> crosstool-ng. AVR32 does not have support in mainline GCC but does in
>> crosstool, thanks to several megabytes of patches for gcc-4.2.2,
>> binutils-2.18 and newlib-1.17
>
> Target is the 8-bit AVR. I was confused and thought that the AVR32
> compilers worked for both CPUs. I need the AVR8 gcc.
>
> So crosstool-ng is missing AVR8 support which is my final target. That
> probably rules it out.
>
>> Mind you, I can't see GCC running on the 8-bit AVR processors, so I
>> assume you mean AVR32, in which case you might start from here:
>> http://spaces.atmel.com/gf/project/ct-ng/
>> which has patches for AVR32 for more versions, up to gcc-4.4.7.
>
> Compiler needs to run on a mipel with uclibc.
>
> So it is:
> x86 --> mipsel (uclibs) --> AVR8 (bare metal)
>
> ----------------
>
> I'm trying a couple of other schemes too...
> Using the Openwrt cross build environment to make the AVR8 compiler.
> I am missing all of the makefile for this and haven't found a combo
> yet that builds.
>
> Using Debian on a mipel emulator.
> I have the make files for the AVR8 compiler, but I need to figure out
> how to modify them to build for mipsel/uclibc instead of normal
> Debian.
>
>
>> That said, the current AVR32 stuff in crosstool-ng only supports
>> newlib on bare-metal targets if I understand correctly. What operating
>> system environment platform are you wanting the ct-ng-generated
>> compiler to run on?
>>   I think the AVR32 patches have support for uclinux (or had... I fear
>> I may have diked that part out while pruning the patches for my
>> project).  Do you maybe have linux/uclibc running on AVR32?
>>
>>    M
>
>
>
> --
> Jon Smirl
> jonsmirl@gmail.com



-- 
Jon Smirl
jonsmirl@gmail.com

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