120 lines
3.7 KiB
Bash
Executable File
120 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -e
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DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null && pwd)"
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cd "$DIR"
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TOOLCHAIN_VERSION="13.2.rel1"
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TOOLCHAIN_BASE="arm-gnu-toolchain-${TOOLCHAIN_VERSION}"
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GCC_VERSION="13.2.1"
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INSTALL_DIR="$DIR/gcc_arm_none_eabi/toolchain"
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VERSION_FILE="$INSTALL_DIR/.version"
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# Skip if already at correct version
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if [ -f "$VERSION_FILE" ] && [ "$(cat "$VERSION_FILE")" = "$TOOLCHAIN_VERSION" ]; then
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echo "Toolchain $TOOLCHAIN_VERSION already present, skipping."
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exit 0
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fi
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# Detect current platform
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OS="$(uname -s)"
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ARCH="$(uname -m)"
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case "${OS}-${ARCH}" in
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Linux-x86_64) PLATFORM_SUFFIX="x86_64" ;;
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Linux-aarch64) PLATFORM_SUFFIX="aarch64" ;;
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Darwin-arm64) PLATFORM_SUFFIX="darwin-arm64" ;;
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*)
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echo "Unsupported platform: ${OS}-${ARCH}" >&2
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exit 1
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;;
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esac
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TARBALL="${TOOLCHAIN_BASE}-${PLATFORM_SUFFIX}-arm-none-eabi.tar.xz"
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URL="https://developer.arm.com/-/media/Files/downloads/gnu/${TOOLCHAIN_VERSION}/binrel/${TARBALL}"
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# Download
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echo "Downloading $TARBALL ..."
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curl -fSL -o "$TARBALL" "$URL"
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# Extract (use Python's lzma to avoid requiring xz-utils on the host)
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echo "Extracting ..."
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python3 -c "import lzma, tarfile; tarfile.open(fileobj=lzma.open('$TARBALL')).extractall()"
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EXTRACT_DIR=$(ls -d arm-gnu-toolchain-*-${PLATFORM_SUFFIX}-arm-none-eabi)
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SRC="$DIR/$EXTRACT_DIR"
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rm -rf "$INSTALL_DIR"
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mkdir -p "$INSTALL_DIR"
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# --- bin: only the tools directly used by SConscript ---
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mkdir -p "$INSTALL_DIR/bin"
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for tool in gcc objcopy size; do
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if [ -f "$SRC/bin/arm-none-eabi-$tool" ]; then
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cp "$SRC/bin/arm-none-eabi-$tool" "$INSTALL_DIR/bin/"
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fi
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done
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# --- libexec: cc1 and collect2 (needed by gcc driver) ---
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LIBEXEC_SRC="$SRC/libexec/gcc/arm-none-eabi/$GCC_VERSION"
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LIBEXEC_DST="$INSTALL_DIR/libexec/gcc/arm-none-eabi/$GCC_VERSION"
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mkdir -p "$LIBEXEC_DST"
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for f in cc1 collect2 liblto_plugin.so liblto_plugin.0.so; do
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if [ -f "$LIBEXEC_SRC/$f" ]; then
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cp "$LIBEXEC_SRC/$f" "$LIBEXEC_DST/"
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fi
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done
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# --- arm-none-eabi/bin: only tools gcc calls internally ---
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ARM_SRC="$SRC/arm-none-eabi"
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ARM_DST="$INSTALL_DIR/arm-none-eabi"
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mkdir -p "$ARM_DST/bin"
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for tool in as ld ld.bfd; do
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if [ -f "$ARM_SRC/bin/$tool" ]; then
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cp "$ARM_SRC/bin/$tool" "$ARM_DST/bin/"
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fi
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done
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# --- newlib C headers (needed for #include_next from GCC's stdint.h etc.) ---
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mkdir -p "$ARM_DST/include"
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find "$ARM_SRC/include" -maxdepth 1 -not -name 'c++' | while read -r item; do
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[ "$item" = "$ARM_SRC/include" ] && continue
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cp -r "$item" "$ARM_DST/include/"
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done
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# --- lib/gcc: compiler support (only the multilib we use) ---
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LIB_GCC_SRC="$SRC/lib/gcc/arm-none-eabi/$GCC_VERSION"
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LIB_GCC_DST="$INSTALL_DIR/lib/gcc/arm-none-eabi/$GCC_VERSION"
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MULTILIB="thumb/v7e-m+dp/hard"
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mkdir -p "$LIB_GCC_DST/$MULTILIB"
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# compiler-provided headers
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cp -r "$LIB_GCC_SRC/include" "$LIB_GCC_DST/"
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if [ -d "$LIB_GCC_SRC/include-fixed" ]; then
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cp -r "$LIB_GCC_SRC/include-fixed" "$LIB_GCC_DST/"
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fi
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# target multilib: only thumb/v7e-m+dp/hard (cortex-m7 hard-float)
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cp "$LIB_GCC_SRC/$MULTILIB"/libgcc.a "$LIB_GCC_DST/$MULTILIB/"
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cp "$LIB_GCC_SRC/$MULTILIB"/crt*.o "$LIB_GCC_DST/$MULTILIB/" 2>/dev/null || true
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# --- remove unused headers ---
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rm -f "$LIB_GCC_DST/include/arm_neon.h"
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rm -f "$LIB_GCC_DST/include/arm_mve_types.h"
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rm -f "$LIB_GCC_DST/include/mmintrin.h"
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rm -f "$LIB_GCC_DST/include/ISO_Fortran_binding.h"
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rm -f "$LIB_GCC_DST/include/gcov.h"
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rm -f "$LIB_GCC_DST/include/arm_cde.h"
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# --- strip host binaries ---
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find "$INSTALL_DIR" -type f \( -executable -o -name '*.so' \) -exec strip {} + 2>/dev/null || true
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# --- clean up download artifacts ---
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rm -rf "$EXTRACT_DIR"
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rm -f "$TARBALL"
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echo "$TOOLCHAIN_VERSION" > "$VERSION_FILE"
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echo "Installed to $INSTALL_DIR"
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du -sh "$INSTALL_DIR"
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