Initial commit: cross-platform powerpc-xenon-pe binutils builds

Xbox 360 (Xenon) big-endian PowerPC COFF support patched onto
binutils 2.45.1, with cross-platform CI mirroring gc-wii-binutils.

.gitattributes

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+*.patch text eol=lf

.github/workflows/build.yml

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+name: Build
+
+on:
+  push:
+    paths-ignore:
+      - '*.md'
+      - 'LICENSE*'
+  pull_request:
+
+jobs:
+  build-linux:
+    name: Build Linux
+    strategy:
+      matrix:
+        include:
+          - name: x86_64
+            gnu: x86_64-linux-musl
+            zig: x86_64-linux-musl
+          - name: i686
+            gnu: i686-linux-musl
+            zig: x86-linux-musl
+          - name: armv7l
+            gnu: arm-linux-musleabihf
+            zig: arm-linux-musleabihf
+          - name: aarch64
+            gnu: aarch64-linux-musl
+            zig: aarch64-linux-musl
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build
+        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:
+          name: linux-${{ matrix.name }}
+          path: build/bin
+
+  build-macos:
+    name: Build macOS
+    runs-on: macos-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Build
+        run: ./build-macos.sh
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-universal
+          path: build/bin
+
+  build-windows:
+    name: Build Windows
+    strategy:
+      matrix:
+        include:
+          - name: x86_64
+            sys: clang64
+          # - name: arm64
+          #   sys: clangarm64
+      fail-fast: false
+    runs-on: windows-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - uses: msys2/setup-msys2@v2
+        with:
+          msystem: ${{ matrix.sys }}
+          install: make texinfo patch
+          pacboy: clang:p
+      - name: Build
+        shell: msys2 {0}
+        run: ./build-windows.sh
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-${{ matrix.name }}
+          path: build/bin
+
+  release:
+    name: Release
+    if: startsWith(github.ref, 'refs/tags/')
+    runs-on: ubuntu-latest
+    needs: [ build-linux, build-macos, build-windows ]
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          path: artifacts
+      - name: List artifacts
+        run: ls -R artifacts
+      - name: Create archives
+        working-directory: artifacts
+        run: for f in *; do zip -jr $f.zip $f; done
+      - name: Release
+        uses: softprops/action-gh-release@4634c16e79c963813287e889244c50009e7f0981
+        with:
+          files: artifacts/*.zip

.gitignore

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+binutils-*
+build
+source

Dockerfile

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+# Build stage
+ARG ALPINE_VERSION=3.19.1
+FROM alpine:${ALPINE_VERSION} AS build
+
+# Install dependencies
+RUN apk add --no-cache binutils file gcc make musl-dev patch
+
+# Install zig
+ARG ZIG_VERSION=0.11.0
+RUN mkdir /zig && \
+    wget -qO- "https://ziglang.org/download/${ZIG_VERSION}/zig-linux-`uname -m`-${ZIG_VERSION}.tar.xz" | \
+    tar -xJ -C /zig --strip-components=1
+ENV PATH="/zig:$PATH"
+
+# Download binutils
+ARG BINUTILS_VERSION=2.45.1
+RUN wget -q https://ftp.gnu.org/gnu/binutils/binutils-${BINUTILS_VERSION}.tar.xz
+
+# Copy patches (needed for both host and target builds)
+COPY *.patch /
+
+# Build host binutils
+ARG GNU_TRIPLE
+RUN mkdir /binutils-host && \
+    tar -xf /binutils-${BINUTILS_VERSION}.tar.xz -C /binutils-host --strip-components=1 && \
+    cd /binutils-host && for patch in ../*.patch; do patch -N -p1 -i $patch; done && \
+    ./configure --target=powerpc-xenon-pe --prefix=/usr/local \
+    --disable-nls --disable-shared --disable-gprofng --disable-ld --disable-gold && \
+    make -j$(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 && for patch in ../*.patch; do patch -N -p1 -i $patch; done && \
+    CC="zig cc -target ${ZIG_TRIPLE}" \
+    ./configure --host=${GNU_TRIPLE} --target=powerpc-xenon-pe --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
+COPY --from=build /target .

README.md

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+Cross-platform builds of `powerpc-xenon-pe` binutils (Xbox 360 / Xenon).

build-macos.sh

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+#!/bin/bash -ex
+PREFIX="$(pwd)/build"
+mkdir source
+wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.45.1.tar.xz | tar -xJ -C source --strip-components=1
+cd source
+for patch in ../*.patch; do
+  patch -N -p1 -i "$patch"
+done
+export CFLAGS="-arch arm64 -arch x86_64 -mmacosx-version-min=10.11"
+./configure --target=powerpc-xenon-pe --prefix="$PREFIX" --disable-nls --disable-shared --disable-gprof --without-zstd
+make -j$(nproc) configure-host
+make -j$(nproc)
+make install-strip

build-windows.sh

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+#!/bin/bash -ex
+PREFIX="$(pwd)/build"
+mkdir source
+wget -qO- https://ftp.gnu.org/gnu/binutils/binutils-2.45.1.tar.xz | tar -xJ -C source --strip-components=1
+cd source
+for patch in ../*.patch; do
+  patch -N -p1 -i "$patch"
+done
+./configure --target=powerpc-xenon-pe --prefix="$PREFIX" --disable-nls --disable-shared --disable-gprof --without-zstd
+make -j$(nproc) configure-host
+make -j$(nproc)
+make install-strip