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Migrate the Makefile to CMake #685

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60ec682
Migrate the `Makefile` to CMake
alexcrichton Nov 19, 2025
3d47081
Disable check-symbols by default
alexcrichton Nov 22, 2025
d26d575
Fix typo
alexcrichton Dec 3, 2025
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6 changes: 0 additions & 6 deletions .github/actions/setup/action.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -57,10 +57,4 @@ runs:
echo "CC=clang-$v" >> $GITHUB_ENV
echo "AR=llvm-ar-$v" >> $GITHUB_ENV
echo "NM=llvm-nm-$v" >> $GITHUB_ENV
# Note: wasm-component-ld is only needed for Linux because
# currently, wasm32-wasip2 is only tested on Linux. If that changes,
# this step will have to be added to the other targets.
curl -fsSLO https://github.com/bytecodealliance/wasm-component-ld/releases/download/v0.5.15/wasm-component-ld-v0.5.15-x86_64-linux.tar.gz
tar xzf wasm-component-ld-v0.5.15-x86_64-linux.tar.gz
echo "$(pwd)/wasm-component-ld-v0.5.15-x86_64-linux" >> $GITHUB_PATH
if: runner.os == 'Linux'
133 changes: 53 additions & 80 deletions .github/workflows/main.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,6 @@ jobs:
buildlibc:
name: ${{ matrix.name }}
runs-on: ${{ matrix.os }}
env: ${{ matrix.env || fromJSON('{}') }}
strategy:
fail-fast: false
matrix:
Expand All @@ -33,122 +32,101 @@ jobs:
clang_version: 15.0.7
llvm_asset_suffix: arm64-apple-darwin22.0
upload: macos-clang-15
args: -DBUILD_SHARED=OFF -DCMAKE_C_COMPILER_WORKS=ON
- name: Build on Windows x86_64
os: windows-2025
clang_version: 20.1.8
upload: windows-clang-20
args: -DBUILD_SHARED=OFF

# Other versions of LLVM
- name: Build with LLVM 11
os: ubuntu-22.04
clang_version: 11
upload: linux-x86_64-clang-11
env:
BUILD_LIBSETJMP: no
args: -DSETJMP=OFF -DBUILD_SHARED=OFF
- name: Build with LLVM 18
os: ubuntu-24.04
clang_version: 18
upload: linux-x86_64-clang-18
env:
MAKE_TARGETS: "default libc_so"

# Test various combinations of target triples.
#
# Configuration here can happen through `env` which is inherited to
# jobs below. For now this only runs tests on Linux with Clang 16,
# but that can be expanded as necessary in the future too. Note that
# some targets run the build for the `libc_so` makefile target to
# ensure the PIC build works.
# Configuration here can happen through `args` which are all passed
# to CMake. For now this only runs tests on Linux with Clang 16,
# but that can be expanded as necessary in the future too.
- name: Test wasm32-wasi
os: ubuntu-24.04
clang_version: 19
test: true
upload: wasm32-wasi
env:
TARGET_TRIPLE: wasm32-wasi
MAKE_TARGETS: "default libc_so"
args: -DTARGET_TRIPLE=wasm32-wasi

- name: Test wasm32-wasip1
os: ubuntu-24.04
clang_version: 19
test: true
upload: wasm32-wasip1
env:
TARGET_TRIPLE: wasm32-wasip1
MAKE_TARGETS: "default libc_so"
args: -DTARGET_TRIPLE=wasm32-wasip1

- name: Test wasm32-wasip2
os: ubuntu-24.04
clang_version: 19
test: true
upload: wasm32-wasip2
env:
TARGET_TRIPLE: wasm32-wasip2
WASI_SNAPSHOT: p2
MAKE_TARGETS: "default libc_so"
args: -DTARGET_TRIPLE=wasm32-wasip2

- name: Test wasm32-wasip1-threads
os: ubuntu-24.04
clang_version: 19
test: true
upload: wasm32-wasip1-threads
env:
TARGET_TRIPLE: wasm32-wasip1-threads
THREAD_MODEL: posix
args: -DTARGET_TRIPLE=wasm32-wasip1-threads

- name: Test wasm32-wasip1 in V8
os: ubuntu-24.04
clang_version: 19
test: true
test_with_v8: true
env:
TARGET_TRIPLE: wasm32-wasip1
args: -DTARGET_TRIPLE=wasm32-wasip1

- name: Test wasm32-wasip1-threads in V8
os: ubuntu-24.04
clang_version: 19
test: true
test_with_v8: true
env:
TARGET_TRIPLE: wasm32-wasip1-threads
THREAD_MODEL: posix
args: -DTARGET_TRIPLE=wasm32-wasip1-threads

- name: Test wasm32-wasi-simd
os: ubuntu-24.04
clang_version: 19
test: true
upload: wasm32-wasi-simd
env:
TARGET_TRIPLE: wasm32-wasip1
MAKE_TARGETS: "no-check-symbols"
EXTRA_CFLAGS: "-O2 -DNDEBUG -msimd128 -mrelaxed-simd -mbulk-memory -D__wasilibc_simd_string"
args: -DSIMD=ON -DCHECK_SYMBOLS=OFF

- name: Test wasm32-wasip1 (debug)
os: ubuntu-24.04
clang_version: 19
test: true
env:
TARGET_TRIPLE: wasm32-wasip1
DEBUG: true
args: -DCMAKE_BUILD_TYPE=Debug

- name: Test wasm32-wasip2 (debug)
os: ubuntu-24.04
clang_version: 19
test: true
env:
TARGET_TRIPLE: wasm32-wasip2
WASI_SNAPSHOT: p2
DEBUG: true
args: -DCMAKE_BUILD_TYPE=Debug -DTARGET_TRIPLE=wasm32-wasip2

- name: Test wasm32-wasip1-threads (debug)
os: ubuntu-24.04
clang_version: 19
test: true
env:
TARGET_TRIPLE: wasm32-wasip1-threads
THREAD_MODEL: posix
DEBUG: true
args: -DCMAKE_BUILD_TYPE=Debug -DTARGET_TRIPLE=wasm32-wasip1-threads

- name: Test emmalloc
os: ubuntu-24.04
clang_version: 19
test: true
env:
TARGET_TRIPLE: wasm32-wasip1
MALLOC_IMPL: emmalloc
args: -DMALLOC=emmalloc

steps:
- uses: actions/[email protected]
Expand All @@ -160,9 +138,6 @@ jobs:
clang_version: ${{ matrix.clang_version }}
llvm_asset_suffix: ${{ matrix.llvm_asset_suffix }}

- name: Build libc
run: make -j4 $MAKE_TARGETS CHECK_SYMBOLS=yes

- name: Install V8 dependencies
if: matrix.test_with_v8
run: |
Expand All @@ -171,29 +146,29 @@ jobs:
echo ENGINE="$PWD/test/scripts/browser-test/harness.mjs" >> $GITHUB_ENV
echo CTEST_ARGS="--label-exclude v8fail" >> $GITHUB_ENV

- name: Setup testing
if: matrix.test
- name: Configure libc
run: |
cmake -S test -B testbuild -G Ninja \
-DTARGET_TRIPLE=${{ env.TARGET_TRIPLE }} \
-DENGINE=${{ env.ENGINE }} \
-DCMAKE_LINK_DEPENDS_USE_LINKER=OFF \
-DMALLOC_IMPL=${{ env.MALLOC_IMPL }}
cmake -G Ninja -S . -B build \
-DCHECK_SYMBOLS=ON \
${{ matrix.args }} \
-DCMAKE_LINK_DEPENDS_USE_LINKER=OFF

- name: Build tests
- name: Configure testing
if: matrix.test
run: ninja -C testbuild
run: cmake -S . -B build -DBUILD_TESTS=ON -DENGINE=${{ env.ENGINE }}

- name: Build
run: ninja -C build -v

- name: Test
if: matrix.test
run: ctest --test-dir testbuild --output-on-failure -j4 $CTEST_ARGS

run: ctest --test-dir build/test --output-on-failure -j4 $CTEST_ARGS

- uses: actions/[email protected]
if: matrix.upload
with:
name: ${{ format( 'sysroot-{0}.tgz', matrix.upload) }}
path: sysroot
path: build/sysroot


# Disable the headerstest job for now, while WASI transitions from the
Expand Down Expand Up @@ -244,7 +219,8 @@ jobs:
- uses: actions/[email protected]
with:
submodules: true
- run: make bindings
- run: CC=clang cmake -S . -B build -G Ninja
- run: ninja -C build bindings
- run: git diff --exit-code

# Currently wasi-libc's test suite is pretty bare-bones. To try to increase
Expand All @@ -253,42 +229,39 @@ jobs:
# the end this runs at least some Python tests against a from-source-built
# copy of wasi-libc.
python:
name: Test Python
name: Test Python ${{ matrix.name }}
runs-on: ubuntu-24.04-arm
env: ${{ matrix.env || fromJSON('{}') }}
strategy:
fail-fast: false
matrix:
include:
- env:
TARGET_TRIPLE: wasm32-wasip1
- env:
TARGET_TRIPLE: wasm32-wasip2
WASI_SNAPSHOT: p2
- env:
TARGET_TRIPLE: wasm32-wasip1
MALLOC_IMPL: emmalloc
- name: wasm32-wasip1
args: -DTARGET_TRIPLE=wasm32-wasip1
- name: emmalloc
args: -DTARGET_TRIPLE=wasm32-wasip1 -DMALLOC=emmalloc
- name: wasm32-wasip2
args: -DTARGET_TRIPLE=wasm32-wasip2
steps:
- uses: actions/[email protected]
with:
submodules: true
- run: |
curl https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-24/wasi-sdk-24.0-arm64-linux.tar.gz -L | tar xzvf -
echo "WASI_SDK_PATH=`pwd`/wasi-sdk-24.0-arm64-linux" >> $GITHUB_ENV
curl https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-25/wasi-sdk-25.0-arm64-linux.tar.gz -L | tar xzvf -
echo "WASI_SDK_PATH=`pwd`/wasi-sdk-25.0-arm64-linux" >> $GITHUB_ENV
if: runner.os == 'Linux'
shell: bash
working-directory: ${{ runner.tool_cache }}
- name: Setup `wasmtime`
uses: bytecodealliance/actions/wasmtime/setup@v1
with:
version: "38.0.3"
- run: make -j4 CC=$WASI_SDK_PATH/bin/clang AR=$WASI_SDK_PATH/bin/llvm-ar
- name: Setup testing
- name: Setup wasi-libc
run: |
cmake -S test -B testbuild -G Ninja \
-DTARGET_TRIPLE=${{ env.TARGET_TRIPLE }} \
cmake -S . -B build -G Ninja \
${{ matrix.args }} \
-DCMAKE_LINK_DEPENDS_USE_LINKER=OFF \
-DPYTHON_TESTS=ON \
-DCMAKE_C_COMPILER=clang
-DBUILD_TESTS=ON \
-DCMAKE_C_COMPILER=$WASI_SDK_PATH/bin/clang
- name: Build and test python
run: ninja -C testbuild python
run: ninja -C build -v python
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