86 lines
1.9 KiB
Bash
Executable File
86 lines
1.9 KiB
Bash
Executable File
#! /bin/sh
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set -ex
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srcdir="$(dirname "$0")"
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test -z "$srcdir" && srcdir=.
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cd "$srcdir"
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if [ -z "$TARGET" ]; then
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set +x
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echo "TARGET not specified"
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exit 1
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fi
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TARGET=$TARGET-elf
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BINUTILSVERSION=2.38
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GCCVERSION=12.1.0
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if command -v gmake; then
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export MAKE=gmake
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else
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export MAKE=make
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fi
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if command -v gtar; then
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export TAR=gtar
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else
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export TAR=tar
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fi
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export CFLAGS="-O2 -pipe"
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unset CC
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unset CXX
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if [ "$(uname)" = "OpenBSD" ]; then
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# OpenBSD has an awfully ancient GCC which fails to build our toolchain.
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# Force clang/clang++.
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export CC="clang"
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export CXX="clang++"
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fi
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mkdir -p toolchain && cd toolchain
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PREFIX="$(pwd -P)"
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export MAKEFLAGS="-j$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || psrinfo -tc 2>/dev/null || echo 1)"
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export PATH="$PREFIX/bin:$PATH"
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if [ ! -f binutils-$BINUTILSVERSION.tar.gz ]; then
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curl -o binutils-$BINUTILSVERSION.tar.gz https://ftp.gnu.org/gnu/binutils/binutils-$BINUTILSVERSION.tar.gz
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fi
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if [ ! -f gcc-$GCCVERSION.tar.gz ]; then
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curl -o gcc-$GCCVERSION.tar.gz https://ftp.gnu.org/gnu/gcc/gcc-$GCCVERSION/gcc-$GCCVERSION.tar.gz
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fi
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rm -rf build
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mkdir build
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cd build
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$TAR -zxf ../binutils-$BINUTILSVERSION.tar.gz
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$TAR -zxf ../gcc-$GCCVERSION.tar.gz
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mkdir build-binutils
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cd build-binutils
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../binutils-$BINUTILSVERSION/configure CFLAGS="$CFLAGS" CXXFLAGS="$CFLAGS" --target=$TARGET --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
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$MAKE
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$MAKE install
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cd ..
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cd gcc-$GCCVERSION
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sed 's|http://gcc.gnu|https://gcc.gnu|g' < contrib/download_prerequisites > dp.sed
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mv dp.sed contrib/download_prerequisites
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chmod +x contrib/download_prerequisites
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./contrib/download_prerequisites --no-verify
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cd ..
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mkdir build-gcc
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cd build-gcc
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../gcc-$GCCVERSION/configure CFLAGS="$CFLAGS" CXXFLAGS="$CFLAGS" --target=$TARGET --prefix="$PREFIX" --disable-nls --enable-languages=c --without-headers
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$MAKE all-gcc
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$MAKE all-target-libgcc
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$MAKE install-gcc
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$MAKE install-target-libgcc
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cd ..
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