[bug] Docker image GCC 11 requires binutils 2.36

[uilianries]

Description of Problem, Request, or Question

Related to conan-io/conan-center-index#9164

@SSE4 found that we need to update binutils. Unfortunately, it's possible to update from official apt repository, so we will need to find an external PPA or, as last option, build from sources.

Environment Details

• Conan Docker Tools image: conanio/gcc7:1.13.1
• Operating System: Linux
• Operation System Version: Ubuntu 16.04
• Python version (If you are building some image): python 3.7.0

Steps to reproduce (Include if Applicable)

Build logs (Include if Available)

[SSE4]

the right link is conan-io/conan-center-index#9164

[uilianries]

the right link is conan-io/conan-center-index#9164

fixed

[uilianries]

The situation is not good. Binutils 2.36 is from 1 year ago (2021) and is not available on official Ubuntu repository.

Searching on Launchpad, I didn't find an updated version compatible to Ubuntu Focal (20.04). You can take a look here: https://launchpad.net/ubuntu/+ppas?name_filter=binutils

We have few options:

• We can build from sources, during the Image construction
  • Takes more time to build the image every time
  • We already build from source other projects due compatibility
  • It will replace the original Binutils package, causing a fragile situation with APT, the package manager won't know about.
• Or, we can build from source, package it as .deb, and upload to Artifactory. Then, when creating the image, install from there.
  • Requires extra development
  • It will keep a faster image build time
  • APT will know about the version installed, avoiding any override

[SSE4]

okay, I think before further research on how to install it, we need to check if it helps, so let's build it once from source and try to build tbb. then, if issue disappears after binutils upgrade, we can decide to create .deb or use build from source.

[jgsogo]

conan-io/conan-center-index#8958 Maybe this helps for the POC

[uilianries]

@jgsogo good catch! Thank you!

[jgsogo]

So, upgrading binutils fixes the issue? Is it a solution we might consider?

And some more general questions:

• I suppose we should use this same version in all dockers, right? gcc, clang,... modern ones
• Why binutils/2.36?
• What is the policy to keep this application updated? Is there a binutils version that matches the compiler version?

[uilianries]

So, upgrading binutils fixes the issue?

Yes.

Is it a solution we might consider?

Yes. As we are running conanio/gcc11-ubuntu16.04, the binutils is older (2.26.1), the update is a good move.

I suppose we should use this same version in all dockers, right? gcc, clang,... modern ones

Right, that PR that I'm doing, it installs binutils/2.37 (latest) from Conan on Base image

Why binutils/2.36?

The important thing is supporting tpause, but the latest 2.37 is better. Also, reading linux from scratch website, they simplified 2.37 build steps a lot, compared to older versions.

What is the policy to keep this application updated? Is there a binutils version that matches the compiler version?

Good question, binutils is GNU project, but they don't release together. However, GCC manual shows some features which require binutils at some minimal version. https://gcc.gnu.org/onlinedocs/gcc-10.3.0/gcc.pdf. However, they don't ask for latest version.