[oe] cortex-a9 machine build failure at gcc

[RK Raggit]

Thanks Koen. Falling back to default Angstrom distro triggers this error -

**************************
| echo |
/home/work/armv7a-angstrom-linux-gnueabi/gcc-cross-initial-4.3.3-r7.1/gcc-4.3.3/build.i686-linux.arm-angstrom-linux-gnueabi/./gcc/xgcc
-B/home/work/armv7a-angstrom-linux-gnueabi/gcc-cross-initial-4.3.3-r7.1/gcc-4.3.3/build.i686-linux.arm-angstrom-linux-gnueabi/./gcc/
-march=armv7-a -mtune=cortex-a9 -mfpu=neon -mfloat-abi=softfp
-isystem/home/build/tmp/staging/armv7a-angstrom-linux-gnueabi/usr/include
-B/home/build/tmp/cross/armv7a/arm-angstrom-linux-gnueabi/bin/
-B/home/build/tmp/cross/armv7a/arm-angstrom-linux-gnueabi/lib/ -isystem
/home/raghu/build/tmp/cross/armv7a/arm-angstrom-linux-gnueabi/include
-isystem
/home/raghu/build/tmp/cross/armv7a/arm-angstrom-linux-gnueabi/sys-include -E
-dM - | \
|         sed -n -e 's/^#define \([^_][a-zA-Z0-9_]*\).*/\1/p' \
|                -e 's/^#define \(_[^_A-Z][a-zA-Z0-9_]*\).*/\1/p' | \
|         sort -u > tmp-macro_list
| *cc1: error: bad value (cortex-a9) for -mtune= switch
*| /bin/sh
/home/raghu/opendistro/build/tmp/work/armv7a-angstrom-linux-gnueabi/gcc-cross-initial-4.3.3-r7.1/gcc-4.3.3/gcc/../move-if-change
tmp-macro_list macro_list
************
I have removed gcc specific variables from my local.conf, so they must be
getting picked up from the distro conf file.

Is cortex-a9 not yet supported by the default Angstrom toolchain or am i
missing something ?

--RK


On Mon, Nov 23, 2009 at 1:42 PM, Koen Kooi <k.kooi at student.utwente.nl>wrote:

> On 23-11-09 07:14, RK Raggit wrote:
>
>> Hi,
>>
>> I am adding support for a cortex-a9 based machine but the build fails at
>> gcc
>> with this error -
>>
>> ****************
>> |
>>
>> /home/work/armv7a-angstrom-linux-gnueabi/gcc-cross-initial-4.2.4-r9.1/gcc-4.2.4/gcc/crtstuff.c:1:
>> error: bad value (cortex-a9) for -mtune= switch
>>
>
> Gcc 4.2.4 doesn't support armv7
>
>
>
> gcc variables in my local.conf read thus -
>>
>> PREFERRED_VERSION_gcc                    = "4.2.4"
>> PREFERRED_VERSION_gcc-cross              = "csl-arm-2008q1"
>> PREFERRED_VERSION_gcc-cross-initial      = "csl-arm-2008q1"
>> PREFERRED_VERSION_gcc-cross-intermediate = "csl-arm-2008q1"
>>
>
> Don't use CSL toolchains, they are waaaay to broken, especially 2008qX:
> http://hardwarebug.org/2008/11/28/codesourcery-fails-again/
> Stick with the default toolchain angstrom is using, it is tested on real
> hardware (CS only tests inside qemu) and is know to work well
>
> regards,
>
> Koen
>
>
>
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