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Re: [Discuss-gnuradio] volk compile error on raspberry pi3

From: Cinaed Simson
Subject: Re: [Discuss-gnuradio] volk compile error on raspberry pi3
Date: Tue, 21 Feb 2017 16:57:06 -0800
User-agent: Mozilla/5.0 (X11; Linux i686; rv:45.0) Gecko/20100101 Thunderbird/45.7.1

Hi Michael - it worked. Thanks!

I upgraded Raspbian Jessie to Debian Jessie and was able to install
gnuradio from source.

The CFLAGS at that URL are for pi2 - for the pi3 I used

  CFLAGS="-march=armv8-a -mtune=cortex-a53 -mfloat-abi=hard
-mfpu=neon-vfpv4 -O2"


  CFLAGS="-march=armv8-a -mtune=cortex-a53"

will work too - as well as not setting CFLAGS.

-- Cinaed

On 02/20/2017 02:01 PM, Michael Dickens wrote:
> Hi Cinaed - Check out < https://brmlab.cz/user/jenda/rpi-gcc >. - MLD
> On Mon, Feb 20, 2017, at 03:36 PM, Cinaed Simson wrote:
>> Any know if the following bug has been resolved?
>> It appears this bug has existed since the first pi was released.
>> Anyone know if a patch exists?
>> I did install version 3.7.4 supported by the Raspbian OS but I'm running
>> the latest firmware on my devices it causes them to stutter - stop and
>> go - causing under flows and over flows.
>> The devices work perfectly outside of gnuradio 3.7.4.
>> Rumor has it the pi's don't support sbfx.
>> Error:
>> /opt/gnuradio/src/gnuradio-
>> Error: selected processor does not support ARM mode `sbfx r11,r1,#2,#1'
>> gcc (Raspbian 4.9.2-10) 4.9.2
>> g++ (Raspbian 4.9.2-10) 4.9.2
>> GNU assembler (GNU Binutils for Raspbian) 2.25

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