codeql.yml

name: CodeQL

# CodeQL doesn't have first-class Rust support, so this workflow only
# analyzes the BPF C source under src/bpf/ and the GitHub Actions
# workflows. It's a backstop for the small surface of non-Rust code
# in the project; the Rust-side checks live in ci.yml.

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: "0 9 * * 1"

jobs:
  analyze:
    name: analyze (${{ matrix.language }})
    runs-on: ubuntu-24.04
    permissions:
      actions: read
      contents: read
      security-events: write
    strategy:
      fail-fast: false
      matrix:
        language: [c-cpp, actions]
    steps:
      - uses: actions/checkout@v4
      - name: install bpf build deps
        if: matrix.language == 'c-cpp'
        run: |
          sudo apt-get update
          sudo apt-get install -y clang libbpf-dev libelf-dev zlib1g-dev linux-libc-dev
      - uses: github/codeql-action/init@v3
        with:
          languages: ${{ matrix.language }}
      - name: build BPF C
        if: matrix.language == 'c-cpp'
        run: |
          # The BPF program lives in src/bpf/. Compile it directly so
          # CodeQL has something to analyze for c-cpp.
          mkdir -p target/codeql
          clang -target bpf -O2 -g \
            -I src/bpf \
            -I /usr/include/x86_64-linux-gnu \
            -c src/bpf/tracer.bpf.c \
            -o target/codeql/tracer.o
      - uses: github/codeql-action/analyze@v3
        with:
          category: "/language:${{ matrix.language }}"