Use zig cc for Linux cross compiling

.github/workflows/build.yml

@@ -14,24 +14,27 @@ jobs:
       matrix:
         include:
           - name: x86_64
-            platform: linux/amd64
+            gnu: x86_64-linux-musl
+            zig: x86_64-linux-musl
           - name: i686
-            platform: linux/386
+            gnu: i686-linux-musl
+            zig: x86-linux-musl
           - name: armv7l
-            platform: linux/arm/v7
+            gnu: arm-linux-musleabihf
+            zig: arm-linux-musleabihf
           - name: aarch64
-            platform: linux/arm64/v8
+            gnu: aarch64-linux-musl
+            zig: aarch64-linux-musl
       fail-fast: false
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-      - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: actions/checkout@v4
       - name: Build
-        run: docker build --target export --output build . --platform ${{ matrix.platform }}
+        run: >
+          docker build --target export --output build . 
+          --build-arg GNU_TRIPLE=${{ matrix.gnu }}
+          --build-arg ZIG_TRIPLE=${{ matrix.zig }}
       - name: Upload artifacts
         uses: actions/upload-artifact@v4
         with:
@@ -43,7 +46,7 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build
         run: ./build-macos.sh
       - name: Upload artifacts
@@ -65,7 +68,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - uses: msys2/setup-msys2@v2
         with:
           msystem: ${{ matrix.sys }}
@@ -96,6 +99,6 @@ jobs:
         working-directory: artifacts
         run: for f in *; do zip -jr $f.zip $f; done
       - name: Release
-        uses: softprops/action-gh-release@v1
+        uses: softprops/action-gh-release@4634c16
         with:
           files: artifacts/*.zip

.gitignore

@@ -1,2 +1,3 @@
 binutils-*
 build
+source

Dockerfile

@@ -1,18 +1,41 @@
 # Build stage
-FROM alpine:3.19.1 AS build
+ARG ALPINE_VERSION=3.19.1
+FROM alpine:${ALPINE_VERSION} AS build
 
 # Install dependencies
-RUN apk add --no-cache gcc musl-dev make
+RUN apk add --no-cache binutils file gcc make musl-dev
 
-# Download and extract source
-RUN wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz | tar -xJ
+# Install zig
+ARG ZIG_VERSION=0.11.0
+RUN mkdir /zig && \
+    wget -qO- "https://ziglang.org/download/${ZIG_VERSION}/zig-linux-`uname -m`-${ZIG_VERSION}.tar.xz" | \
+    tar -xJ -C /zig --strip-components=1
+ENV PATH="/zig:$PATH"
 
-# Build binutils
-WORKDIR /binutils-2.42
-RUN ./configure --target=powerpc-eabi --prefix=/target --disable-nls --disable-shared \
-    && make -j$(nproc) configure-host \
-    && make -j$(nproc) LDFLAGS=-all-static \
-    && make install-strip
+# Download binutils
+ARG BINUTILS_VERSION=2.42
+RUN wget -q https://ftp.gnu.org/gnu/binutils/binutils-${BINUTILS_VERSION}.tar.xz
+
+# Build host binutils
+ARG GNU_TRIPLE
+RUN mkdir /binutils-host && \
+    tar -xf /binutils-${BINUTILS_VERSION}.tar.xz -C /binutils-host --strip-components=1 && \
+    cd /binutils-host && \
+    ./configure --target=${GNU_TRIPLE} --prefix=/usr/local \
+    --disable-nls --disable-shared --disable-gprofng --disable-ld --disable-gold && \
+    make -j$(nproc) && \
+    make install-strip
+
+# Build target binutils
+ARG ZIG_TRIPLE
+RUN mkdir /binutils && \
+    tar -xf /binutils-${BINUTILS_VERSION}.tar.xz -C /binutils --strip-components=1 && \
+    cd /binutils && \
+    CC="zig cc -target ${ZIG_TRIPLE}" \
+    ./configure --host=${GNU_TRIPLE} --target=powerpc-eabi --prefix=/target \
+    --disable-nls --disable-shared --disable-gprof --without-zstd && \
+    make -j$(nproc) && \
+    make install-strip
 
 # Export binary (usage: docker build --target export --output build .)
 FROM scratch AS export

build-macos.sh

@@ -1,9 +1,10 @@
 #!/bin/bash -ex
 PREFIX="$(pwd)/build"
-wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz | tar -xJ
-cd binutils-2.42
+mkdir source
+wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz | tar -xJ -C source --strip-components=1
+cd source
 export CFLAGS="-arch arm64 -arch x86_64 -mmacosx-version-min=10.11"
-./configure --target=powerpc-eabi --prefix="$PREFIX" --disable-nls --disable-shared --without-zstd
+./configure --target=powerpc-eabi --prefix="$PREFIX" --disable-nls --disable-shared --disable-gprof --without-zstd
 make -j$(nproc) configure-host
 make -j$(nproc)
 make install-strip

build-windows.sh

@@ -1,8 +1,9 @@
 #!/bin/bash -ex
 PREFIX="$(pwd)/build"
-wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz | tar -xJ
-cd binutils-2.42
-./configure --target=powerpc-eabi --prefix="$PREFIX" --disable-nls --disable-shared
+mkdir source
+wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.42.tar.xz | tar -xJ -C source --strip-components=1
+cd source
+./configure --target=powerpc-eabi --prefix="$PREFIX" --disable-nls --disable-shared --disable-gprof --without-zstd
 make -j$(nproc) configure-host
 make -j$(nproc)
 make install-strip