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Add CI/CD workflows for releases and playground deployment
- Add build-clang.yml: Builds Linux and macOS binaries on version tags - Update build-playground.yml: Builds WASM with EXIT_RUNTIME=0 and ALLOW_MEMORY_GROWTH flags to enable multiple callMain() invocations (fixes signal handler issue) - Playground deploys automatically on push to null-safe-c-dev - Binaries only released when explicitly tagged (v* for binaries, playground-v* for WASM)
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‎.github/workflows/build-clang.yml‎

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name: Build Null-Safe Clang Binaries
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on:
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push:
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tags:
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- 'v*'
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workflow_dispatch:
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jobs:
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build-linux:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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sudo apt-get update
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sudo apt-get install -y ninja-build cmake build-essential
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- name: Configure build
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run: |
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mkdir -p build
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cd build
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cmake -G Ninja \
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-DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_PROJECTS="clang" \
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-DLLVM_TARGETS_TO_BUILD="X86" \
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-DLLVM_ENABLE_ASSERTIONS=OFF \
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-DCMAKE_INSTALL_PREFIX=../install \
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../llvm
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- name: Build Clang
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run: |
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cd build
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ninja clang
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- name: Install Clang
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run: |
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cd build
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ninja install-clang
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ninja install-clang-headers
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- name: Package binaries
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run: |
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cd install
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tar -czf clang-nullsafe-linux-x86_64.tar.gz bin/ lib/clang/
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: clang-nullsafe-linux-x86_64
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path: install/clang-nullsafe-linux-x86_64.tar.gz
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- name: Create Release
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uses: softprops/action-gh-release@v1
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with:
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files: install/clang-nullsafe-linux-x86_64.tar.gz
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body: |
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## Null-Safe Clang Binary Release
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This release contains the Null-Safe Clang compiler for Linux x86_64.
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### Installation:
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```bash
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tar -xzf clang-nullsafe-linux-x86_64.tar.gz
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export PATH=$PWD/bin:$PATH
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clang --version
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```
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### Usage:
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```bash
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# Compile with null-safety warnings (default)
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clang mycode.c
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# Promote warnings to errors
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clang -Werror=nullability mycode.c
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# Disable null-safety checking
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clang -fno-strict-nullability mycode.c
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```
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See the [README](https://github.com/cs01/llvm-project/blob/null-safe-c-dev/README.md) for full documentation.
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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build-macos:
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runs-on: macos-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Install dependencies
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run: |
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brew install ninja cmake
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- name: Configure build
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run: |
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mkdir -p build
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cd build
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cmake -G Ninja \
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-DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_PROJECTS="clang" \
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-DLLVM_TARGETS_TO_BUILD="AArch64;X86" \
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-DLLVM_ENABLE_ASSERTIONS=OFF \
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-DCMAKE_INSTALL_PREFIX=../install \
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../llvm
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- name: Build Clang
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run: |
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cd build
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ninja clang
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- name: Install Clang
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run: |
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cd build
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ninja install-clang
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ninja install-clang-headers
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- name: Package binaries
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run: |
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cd install
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tar -czf clang-nullsafe-macos-universal.tar.gz bin/ lib/clang/
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- name: Upload artifact
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uses: actions/upload-artifact@v4
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with:
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name: clang-nullsafe-macos-universal
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path: install/clang-nullsafe-macos-universal.tar.gz
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- name: Create Release
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uses: softprops/action-gh-release@v1
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with:
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files: install/clang-nullsafe-macos-universal.tar.gz
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body: |
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## Null-Safe Clang Binary Release (macOS)
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This release contains the Null-Safe Clang compiler for macOS (Intel and Apple Silicon).
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### Installation:
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```bash
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tar -xzf clang-nullsafe-macos-universal.tar.gz
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export PATH=$PWD/bin:$PATH
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clang --version
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```
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See the [README](https://github.com/cs01/llvm-project/blob/null-safe-c-dev/README.md) for usage instructions.
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env:
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

‎.github/workflows/build-playground.yml‎

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-DLLVM_ENABLE_TERMINFO=OFF \
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-DLLVM_ENABLE_ZLIB=OFF \
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-DLLVM_ENABLE_LIBXML2=OFF \
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-DCMAKE_EXE_LINKER_FLAGS="-sEXPORTED_RUNTIME_METHODS=callMain" \
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-DCMAKE_EXE_LINKER_FLAGS="-sEXPORTED_RUNTIME_METHODS=callMain -sEXIT_RUNTIME=0 -sALLOW_MEMORY_GROWTH=1" \
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../llvm
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- name: Build Null-Safe Clang WASM

‎CONTRIBUTING.md‎

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# Contributing to LLVM
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# Contributing to Null-Safe Clang
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Thank you for your interest in contributing to LLVM! There are many ways to
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contribute, and we appreciate all contributions.
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Development branch: `null-safe-c-dev`
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To get started with contributing, please take a look at the
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[Contributing to LLVM](https://llvm.org/docs/Contributing.html) guide. It
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describes how to get involved, raise issues and submit patches.
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## Building
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## Getting in touch
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### Standard (x86)
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```bash
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mkdir build && cd build
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cmake -G Ninja -DCMAKE_BUILD_TYPE=Release -DLLVM_ENABLE_PROJECTS="clang" ../llvm
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ninja clang clangd
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```
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Join the [LLVM Discourse forums](https://discourse.llvm.org/) or [Discord
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chat](https://discord.gg/xS7Z362).
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### WASM (playground)
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```bash
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mkdir build-wasm && cd build-wasm
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export PATH="/path/to/emscripten:$PATH"
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emcmake cmake -G Ninja -DCMAKE_BUILD_TYPE=Release \
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-DLLVM_ENABLE_PROJECTS="clang" -DLLVM_TARGETS_TO_BUILD="WebAssembly" \
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-DLLVM_ENABLE_THREADS=OFF \
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-DCMAKE_EXE_LINKER_FLAGS="-sEXPORTED_RUNTIME_METHODS=callMain -sEXIT_RUNTIME=0 -sALLOW_MEMORY_GROWTH=1" \
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../llvm
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ninja clang
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```
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The LLVM project has adopted a [code of conduct](https://llvm.org/docs/CodeOfConduct.html) for
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participants to all modes of communication within the project.
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## Testing
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```bash
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build/bin/llvm-lit -v clang/test/Sema/strict-nullability.c
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```
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## Releases
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**Playground:** Push to `null-safe-c-dev` → deploys GitHub Pages automatically.
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**WASM files:** `git tag playground-v1.0 && git push origin playground-v1.0`
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**Binaries:** `git tag v1.0.0 && git push origin v1.0.0`
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Downloads: https://github.com/cs01/llvm-project/releases

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