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Re: [Discuss-gnuradio] Problems building GNURadio


From: Vanush Vaswani
Subject: Re: [Discuss-gnuradio] Problems building GNURadio
Date: Tue, 23 Sep 2014 09:45:29 +1000

Damn, I missed the trick with tmpfs. Usually leave it building overnight on BBB.

On Tue, Sep 23, 2014 at 9:27 AM, Tom Tsou <address@hidden> wrote:
> On Mon, Sep 22, 2014 at 4:08 PM, Philip Balister <address@hidden> wrote:
>> On 09/22/2014 02:13 PM, Tom Tsou wrote:
>>> cmake ../ -DCMAKE_C_FLAGS="-march=armv7-a -mthumb-interwork
>>> -mfloat-abi=hard -mfpu=neon-vfpv4 -mtune=cortex-a15"
>>> -DCMAKE_ASM_FLAGS="-march=armv7-a -mthumb-interwork -mfloat-abi=hard
>>> -mfpu=neon-vfpv4 -mtune=cortex-a15"
>>>
>>
>> We should add the ASM fags to the toolchain files.
>
> For native build, the missing piece is architecture detection. Until
> that works sufficiently well, some type of setting(s) will need to
> feed in manually.
>
> Alternatively, the default gcc target could be setup with reasonable
> values. The arndale-linaro image can also compile gnuradio without any
> command line switches since the gcc defaults are sane.
>
> --with-arch=armv7-a --with-fpu=vfpv3-d16 --with-float=hard
>
> Not so with the OE based distros.
>
>>> In this case, the native gnuradio build in tmpfs took a very
>>> reasonable, IMO, 42 min 31 sec.
>>
>> Reasonable for a patient man :)
>
> And power efficient too!
>
>   -TT
>
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