[Ubuntu] Clang, GCC and Gfortran versions less than 9.x will be removed from images on March, 29

[MaksimZhukov]

Breaking changes
Clang, GCC and Gfortran versions less than 9.x will be removed from Ubuntu images

Target date
Image deployment will start March, 29 and will take 3-4 days.

The motivation for the changes
We are going to deprecate these versions of the listed tools due to lack of free space on Ubuntu images

Possible impact
If your project depends on Clang, GCC or Gfortran versions that are less than 9.x — build will be broken.

Virtual environments affected

• Ubuntu 16.04
• Ubuntu 18.04
• Ubuntu 20.04
• macOS 10.13
• macOS 10.14
• macOS 10.15
• macOS 11.0
• Windows Server 2016 R2
• Windows Server 2019

Mitigation ways
If you need to continue using these versions in your build, please consider the following ways to install it in runtime:

1. Clang

sudo apt-get update
sudo apt-get install -y "clang-<version>" "lldb-<version>" "lld-<version>" "clang-format-<version>"

# For example, use this command to install clang 8
sudo apt-get install -y "clang-8" "lldb-8" "lld-8" "clang-format-8"

2. GCC

sudo apt-get update
sudo apt-get install g++-<version> -y

# For example, use this command to install gcc 8
sudo apt-get install g++-8 -y

3. Gfortran

sudo apt-get update
sudo apt-get install gfortran-<version> -y

# For example, use this command to install gfortran 8
sudo apt-get install gfortran-8 -y

[vadi2]

apt-get install <version> -y - this doesn't seem valid. Do you mean apt-get install gcc-<version> -y ?

[MaksimZhukov]

@vadi2, thanks for the note! I have updated the examples

[miketimofeev]

The new images were deployed!

[derekbruening]

This change seems to have broken 32-bit building. We install g++-multilib and it is suddenly failing, starting ~3 hours ago, with build errors where it finds the wrong libraries, which seems like a toolchain installation problem:

https://github.com/DynamoRIO/dynamorio/pull/4829/checks?check_run_id=2247626216

2021-04-01T16:07:58.4961762Z [  2%] Linking C executable bin/linux.infinite
2021-04-01T16:07:58.4962874Z /usr/lib/x86_64-linux-gnu/libdl.so: error adding symbols: File in wrong format
2021-04-01T16:07:58.4964490Z suite/tests/CMakeFiles/linux.infinite.dir/build.make:98: recipe for target 'suite/tests/bin/linux.infinite' failed
2021-04-01T16:07:58.4966284Z CMakeFiles/Makefile2:7501: recipe for target 'suite/tests/CMakeFiles/linux.infinite.dir/all' failed
2021-04-01T16:07:58.4967132Z collect2: error: ld returned 1 exit status

2021-04-01T16:07:58.4971965Z [  2%] Linking C executable bin/client.mbr_instrumentation_segment
2021-04-01T16:07:58.4973167Z /usr/lib/x86_64-linux-gnu/libdl.so: error adding symbols: File in wrong format
2021-04-01T16:07:58.4974711Z suite/tests/CMakeFiles/client.mbr_instrumentation_segment.dir/build.make:98: recipe for target 'suite/tests/bin/client.mbr_instrumentation_segment' failed

2021-04-01T16:09:28.5436729Z [ 58%] Linking CXX executable ../bin32/prefetch_analyzer_launcher
2021-04-01T16:09:28.5438665Z /usr/lib/x86_64-linux-gnu/libz.so: error adding symbols: File in wrong format
2021-04-01T16:09:28.5440235Z clients/drcachesim/CMakeFiles/prefetch_analyzer_launcher.dir/build.make:120: recipe for target 'clients/bin32/prefetch_analyzer_launcher' failed
2021-04-01T16:09:28.5441277Z collect2: error: ld returned 1 exit status

[miketimofeev]

@derekbruening looks like it's not related to the deprecation. I've tried to change CMake version to 3.19.7 using the following steps and the run passed:

    - name: Setup cmake
      uses: jwlawson/actions-setup-cmake@v1.8
      with:
        cmake-version: '3.19.7'

Related issue #3078

[derekbruening]

@derekbruening looks like it's not related to the deprecation. I've tried to change CMake version to 3.19.7 using the following steps and the run passed:

Thank you, @miketimofeev! That indeed seems to fix it, so it does seem to be cmake 3.20.

[madmongo1]

Most unwelcome. It cost a day to fix my CI when this little bomb landed.