toolchain

toolchain_scripts/gcc-x86_64-elf.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+set -euxo pipefail
+
+if [ -z "$OS2_ROOT" ]; then
+    echo "$OS2_ROOT" is blank
+fi
+
+mkdir -p $OS2_ROOT/toolchain || exit 1
+
+pushd $OS2_ROOT/toolchain
+
+mkdir -p gcc-x86_64-elf
+
+pushd gcc-x86_64-elf
+
+if [ ! -d gcc-13.2.0 ]; then
+    wget https://ftp.gnu.org/gnu/gcc/gcc-13.2.0/gcc-13.2.0.tar.xz
+    tar xvf gcc-13.2.0.tar.xz
+    rm gcc-13.2.0.tar.xz
+fi
+
+mkdir -p build
+pushd build
+
+export PREFIX="$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/"
+export TARGET=x86_64-elf
+export PATH="$PREFIX/bin:$PATH"
+
+if [ ! -f "$OS2_ROOT/toolchain/gcc-x86_64-elf-prefix/bin/x86_64-elf-as" ]; then
+    echo "binutils not found"
+    exit 1
+fi
+
+HOMEBREW_LIBS="--with-gmp=/opt/homebrew --with-mpc=/opt/homebrew --with-mpfr=/opt/homebrew"
+
+ADDONS=""
+
+if [ ! -z "$USE_BREW_LIBS" ]; then
+    ADDONS="$HOMEBREW_LIBS $ADDONS"
+fi
+
+cat <<EOF >../gcc-13.2.0/gcc/config/i386/t-x86_64-elf
+# Add libgcc multilib variant without red-zone requirement
+ 
+MULTILIB_OPTIONS += mno-red-zone
+MULTILIB_DIRNAMES += no-red-zone
+EOF
+
+sed -i .bak 's/x86_64-\*-elf\*)/x86_64-\*-elf\*)\n\ttmake_file="\${tmake_file} i386\/t-x86_64-elf"/g' "../gcc-13.2.0/gcc/config.gcc"
+
+../gcc-13.2.0/configure --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c,c++ --with-newlib --without-headers --enable-version-specific-runtime-libs $ADDONS
+make -j$(nproc) all-gcc
+make -j$(nproc) all-target-libgcc
+make install-gcc
+make install-target-libgcc
+
+touch -m ../done