[llvm] [Github] Add libc container (PR #181434)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-github-workflow

Author: Aiden Grossman (boomanaiden154)

<details>
<summary>Changes</summary>

This will let us run the libc full build tests inside of a container which means that we have same time by not having to install dependencies on every run in addition to not running into issues due to dependencies failing to install particularly around LLVM releases with the llvm.sh script.

---
Full diff: https://github.com/llvm/llvm-project/pull/181434.diff


2 Files Affected:

- (added) .github/workflows/build-libc-container.yml (+53) 
- (added) .github/workflows/containers/libc/Dockerfile (+24) 


``````````diff
diff --git a/.github/workflows/build-libc-container.yml b/.github/workflows/build-libc-container.yml
new file mode 100644
index 0000000000000..a6a0f34860831
--- /dev/null
+++ b/.github/workflows/build-libc-container.yml
@@ -0,0 +1,53 @@
+name: Build libc Container
+
+permissions:
+  contents: read
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - .github/workflows/build-libc-container.yml
+      - '.github/workflows/containers/libc/**'
+  pull_request:
+    paths:
+      - .github/workflows/build-libc-container.yml
+      - '.github/workflows/containers/libc/**'
+
+jobs:
+  build-libc-container:
+    name: Build libc container
+    if: github.repository_owner == 'llvm'
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout at 8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          sparse-checkout: |
+            .github/workflows/containers/libc/
+            .github/actions/build-container
+      - name: Build Container
+        uses: ./.github/actions/build-container
+        with:
+          container-name: libc-ubuntu-24.04
+          dockerfile: .github/workflows/containers/libc/Dockerfile
+          target: ''
+          test-command: ${{ matrix.test-command }}
+  push-libc-container:
+    if: github.event_name == 'push'
+    needs:
+      - build-libc-container
+    permissions:
+      packages: write
+    runs-on: ubuntu-24.04
+    steps:
+      - name: Checkout LLVM
+        uses: actions/checkout at 8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        with:
+          sparse-checkout: |
+            .github/actions/push-container
+
+      - uses: ./.github/actions/push-container
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/containers/libc/Dockerfile b/.github/workflows/containers/libc/Dockerfile
new file mode 100644
index 0000000000000..78319d81a2ad0
--- /dev/null
+++ b/.github/workflows/containers/libc/Dockerfile
@@ -0,0 +1,24 @@
+FROM docker.io/library/ubuntu:24.04
+
+RUN apt-get update && \
+    apt-get install -y \
+    libmpfr-dev \
+    libgmp-dev \
+    libmpc-dev \
+    ninja-build \
+    sudo \
+    sccache \
+    wget \
+    lsb-release \
+    software-properties-common \
+    gnupg \
+    linux-libc-dev && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN wget https://apt.llvm.org/llvm.sh && \
+    chmod +x llvm.sh && \
+    sudo ./llvm.sh 21 && \
+    rm llvm.sh
+
+RUN ln -sf /usr/include/$(uname -p)-linux-gnu/asm /usr/include/asm

``````````

</details>


https://github.com/llvm/llvm-project/pull/181434