https://github.com/python/cpython/commit/ad7d3616c6cc21c5ec032a726e4c5e819628aa6e
commit: ad7d3616c6cc21c5ec032a726e4c5e819628aa6e
branch: main
author: Sam Gross <[email protected]>
committer: hugovk <[email protected]>
date: 2026-04-19T15:13:47+03:00
summary:
gh-121946: Use clang-20 for TSan build (#148570)
files:
M .github/workflows/reusable-san.yml
diff --git a/.github/workflows/reusable-san.yml
b/.github/workflows/reusable-san.yml
index 9d4f412cfcf6f7..33f6f0ef455fe0 100644
--- a/.github/workflows/reusable-san.yml
+++ b/.github/workflows/reusable-san.yml
@@ -40,17 +40,15 @@ jobs:
# Install clang
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
+ sudo ./llvm.sh 20
+ sudo update-alternatives --install /usr/bin/clang clang
/usr/bin/clang-20 100
+ sudo update-alternatives --set clang /usr/bin/clang-20
+ sudo update-alternatives --install /usr/bin/clang++ clang++
/usr/bin/clang++-20 100
+ sudo update-alternatives --set clang++ /usr/bin/clang++-20
if [ "${SANITIZER}" = "TSan" ]; then
- sudo ./llvm.sh 17 # gh-121946: llvm-18 package is temporarily broken
- sudo update-alternatives --install /usr/bin/clang clang
/usr/bin/clang-17 100
- sudo update-alternatives --set clang /usr/bin/clang-17
- sudo update-alternatives --install /usr/bin/clang++ clang++
/usr/bin/clang++-17 100
- sudo update-alternatives --set clang++ /usr/bin/clang++-17
# Reduce ASLR to avoid TSan crashing
sudo sysctl -w vm.mmap_rnd_bits=28
- else
- sudo ./llvm.sh 20
fi
- name: Sanitizer option setup
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