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Old 10-08-2019, 12:15 PM   #1
stormtracknole
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Registered: Aug 2005
Distribution: Slackware, RHEL
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Question Using icecream to crossbuild with x86_64


So in the past, I have used distcc to build arm packages while using my x86_64 machines are part of my cluster without issues mostly. Lately, I've been using icecream to build of my x86_64 packages with great success so I started to explore the possibility of doing the same for arm. I already ran x-build on every node that will be involved in the compilation. When it comes time to run a compilation, I monitor all of my cores using Pat's script. None of the other cores pick up any jobs. All the work is still being done one the ARM board.

For distcc,this was the only staging that I needed to do:
Code:
V=cd /usr/lib64/
ln -sfv /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-c++ arm-slackware-linux-gnueabihf-c++
ln -sfv /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-g++ arm-slackware-linux-gnueabihf-g++
ln -sfv /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-gcc arm-slackware-linux-gnueabihf-gcc
ln -sfv /usr/lib64/distcc /usr/lib/
It didn't seem to make a difference. I even tried linking /usr/bin/icecc to /usr/libexec/icecc/bin/arm-slackware-linux-gnueabihf-gcc for example, but no luck. According to the icecream documentation, cross-compiling should work.

Any ideas are greatly appreciated.
 
Old 10-08-2019, 08:37 PM   #2
stormtracknole
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Registered: Aug 2005
Distribution: Slackware, RHEL
Posts: 1,142

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So I think I have figured this out. It just needed different steps. Had to re-read the instructions several times and found a few articles that somewhat cleared the issue. Pat already includes /etc/profile.d/icecream.sh that sets up the paths correctly.

What I had to do was the following:

Copy the contents of x-toolchain from here. Then run x-build from your x86 or x86_64 host.

After completion, run this command on the scheduler host:
Code:
icecc-create-env --gcc /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-gcc /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-g++ --addfile /devel/build-servers/x86_64/arm/bin/arm-slackware-linux-gnueabihf-c++
This will create a tar.gz file with a really long random sets of numbers and letters. You can rename this if you wish. Copy that tar.gz file to the host that will run the actual compilation. In this case the ARM board.

Once your tar.gz file is in the desired ARM host, run the following commands:
Code:
ICECC_VERSION=x86_64:/path/to/yourfile.tar.gz ./package.SlackBuild
That *should* do it. I'll mark this thread as solved and will update it if needed.
 
  


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