[workflow] Implement thread sanitizer nightly workflow

.github/workflows/ci.yml

@@ -7,6 +7,7 @@ on:
     types: [opened, synchronize, reopened, labeled]
     paths-ignore:
       - '.github/workflows/sanitize.yml'
+      - '.github/workflows/sanitize-threads.yml'
       - '.github/workflows/reviter.yml'
       - '.github/workflows/docs.yaml'
       - '.github/workflows/docs-multiversion.yaml'

.github/workflows/sanitize-threads.yml

@@ -0,0 +1,152 @@
+name: Nightly thread sanitizer check
+
+on:
+  pull_request: {} # Uncomment only to test this WF file update.
+  schedule:
+    - cron: '0 7 * * *'  # Runs daily at 1:00 AM CST
+  workflow_dispatch:     # Allows manual triggering
+
+
+permissions:
+  contents: write
+jobs:
+  build-and-runtest-with-asan-ubsan:
+    runs-on: ubuntu-latest
+    if: github.repository == 'qualcomm/eld'
+
+    steps:
+      - name: Set up Clang 22
+        uses: egor-tensin/setup-clang@23bc15cd4207e45f1566447deb48f4ff3ef932cb #v2.3
+        with:
+          version: "22"
+          platform: x64
+
+      - name: Install libc++ and libc++abi
+        run: |
+          sudo apt update
+          sudo apt install -y clang-22 lld-22 ninja-build libc++-22-dev libc++abi-22-dev ccache libclang-rt-22-dev libunwind-22-dev
+          echo "PATH=/usr/lib/llvm-22/bin:$PATH" >> $GITHUB_ENV
+          echo "LD_LIBRARY_PATH=/usr/lib/llvm-22/lib:$PATH" >> $GITHUB_ENV
+
+      - name: Build and Test with Clang and show versions
+        run: |
+          echo "clang version"
+          clang --version
+          echo "clang++ version"
+          clang++ -stdlib=libc++ --version
+          echo "ld.lld version"
+          ld.lld --version
+          echo '#include <iostream>' > test.cpp
+          echo 'int main() { std::cout << "Hello, Clang on Ubuntu 24.04!" << std::endl; return 0; }' >> test.cpp
+          clang++ -std=c++17 -stdlib=libc++ test.cpp -o test_clang
+          ./test_clang
+
+      - name: Checkout llvm-project
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          repository: llvm/llvm-project
+          path: ./llvm-project/
+          ref: main
+
+      - name: Checkout eld
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
+        with:
+          path: ./llvm-project/llvm/tools/eld
+          ref: main
+
+      - name: Configure workflow environment variables
+        uses: ./llvm-project//llvm/tools/eld/.github/workflows/ConfigureBuildWorkflowENV
+
+      - name: Restore ccache
+        id: cache-ccache
+        uses: actions/cache/restore@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 #v6.1.0
+        with:
+          path: ${{ github.workspace }}/obj/ccache
+          key: thread-sanitizer-ccache-${{ runner.os }}-${{ github.run_id }}
+          restore-keys: |
+            thread-sanitizer-ccache-${{ runner.os }}-
+
+      - name: Record pre-build entry
+        if: github.event_name == 'schedule'
+        uses: ./llvm-project//llvm/tools/eld/.github/workflows/BuildStatusDataRecorder
+        with:
+          enabled: true
+          project: "./llvm-project//llvm/tools/eld"
+          stage: "pre-"
+          workflow-name: "thread-sanitizer"
+          record-mode: "record"
+          status: "fail"
+          run-id: ${{github.run_id}}
+          arch-name: "all"
+          branch-name: "${{env.BUILD_BRANCH}}"
+
+      - name: Run CMake
+        run: |
+          mkdir -p obj
+          cd obj
+          cmake -G Ninja \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DCMAKE_DISABLE_PRECOMPILE_HEADERS=ON \
+            -DLLVM_USE_SANITIZER="Thread" \
+            -DCMAKE_CXX_FLAGS:STRING="-stdlib=libc++" \
+            -DCMAKE_C_COMPILER:STRING=`which clang` \
+            -DCMAKE_CXX_COMPILER:STRING=`which clang++` \
+            -DLLVM_TARGETS_TO_BUILD:STRING="ARM;AArch64;RISCV;Hexagon;X86" \
+            -DLLVM_CCACHE_BUILD:BOOL=ON \
+            -DLLVM_CCACHE_DIR:STRING=$PWD/ccache/ \
+            -DLLVM_OPTIMIZED_TABLEGEN:BOOL=ON \
+            -DLLVM_ENABLE_SPHINX=OFF \
+            -DUSE_LLVM_UTILS_FROM_INSTALL:BOOL=ON \
+            -DLLVM_USE_LINKER=lld \
+            ../llvm-project/llvm
+
+      - name: Build Project
+        run: |
+          cd obj
+          ninja ld.eld
+
+      - name: Prune ccache before save
+        if: always()
+        env:
+          CCACHE_DIR: ${{ github.workspace }}/obj/ccache
+        run: ccache --evict-older-than 7200s
+
+      - name: Save ccache
+        if: always()
+        uses: actions/cache/save@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 #v6.1.0
+        with:
+          path: ${{ github.workspace }}/obj/ccache
+          key: thread-sanitizer-ccache-${{ runner.os }}-${{ github.run_id }}
+
+      - name: Fetch nightly toolset
+        uses: ./llvm-project//llvm/tools/eld/.github/workflows/FetchNightlyToolset
+
+      - name: Run tests
+        run: |
+          cd obj
+          ninja check-eld
+
+      - name: Update build entry
+        if: github.event_name == 'schedule'
+        uses: ./llvm-project//llvm/tools/eld/.github/workflows/BuildStatusDataRecorder
+        with:
+          enabled: true
+          project: "./llvm-project//llvm/tools/eld"
+          stage: "post-"
+          workflow-name: "thread-sanitizer"
+          record-mode: "update"
+          status: "pass"
+          run-id: ${{github.run_id}}
+          arch-name: "all"
+          branch-name: "${{env.BUILD_BRANCH}}"
+
+      - name: Clean up nightly toolset
+        if: always()
+        run: |
+          rm -rf ${{ github.workspace }}/inst
+          rm -f ${{ github.workspace }}/install-nightly-toolchain.tar.xz
+          if [ -d "${{ github.workspace }}/inst" ] || [ -f "${{ github.workspace }}/install-nightly-toolchain.tar.xz" ]; then
+            echo "Warning: Failed to clean up nightly toolset"
+          else
+            echo "Successfully cleaned up nightly toolset"
+          fi