Luna/tools/setup-gcc.sh
apio 0abd9153ae
tools+libluna: Make new and delete weak to avoid conflicts with libstdc++
Wasn't causing problems earlier, but when trying to rebuild the toolchain, it failed because of this.
2024-09-01 12:39:55 +02:00

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#!/usr/bin/env bash
set -e
source $(dirname $0)/setup-env.sh
cd $LUNA_ROOT
if [ ! -x $(command -v $LUNA_ARCH-luna-as) ]
then
echo Binutils should be cross-built before GCC.
exit 1
fi
tools/install-headers.sh # install the LibC headers before building GCC
mkdir -p toolchain/tarballs
mkdir -p toolchain/build
if [ ! -f toolchain/tarballs/gcc-$LUNA_GCC_VERSION_REQUIRED.tar.xz ]; then
echo Downloading GCC...
wget -Otoolchain/tarballs/gcc-$LUNA_GCC_VERSION_REQUIRED.tar.xz https://ftp.gnu.org/gnu/gcc/gcc-$LUNA_GCC_VERSION_REQUIRED/gcc-$LUNA_GCC_VERSION_REQUIRED.tar.xz
fi
rm -rf toolchain/build/gcc-$LUNA_ARCH
rm -rf toolchain/build/gcc-$LUNA_GCC_VERSION_REQUIRED
echo Extracting GCC...
tar xf toolchain/tarballs/gcc-$LUNA_GCC_VERSION_REQUIRED.tar.xz -C toolchain/build/
echo Patching GCC...
cd toolchain
patch -u -i $LUNA_ROOT/tools/gcc.patch -p 1 -d build
cd -
cd toolchain/build/gcc-$LUNA_GCC_VERSION_REQUIRED/libstdc++-v3
autoconf
cd -
echo Configuring GCC...
mkdir -p toolchain/build/gcc-$LUNA_ARCH
cd toolchain/build/gcc-$LUNA_ARCH
unset CC
unset CXX
unset LD
unset AR
../gcc-$LUNA_GCC_VERSION_REQUIRED/configure --prefix="$BUILD_PREFIX" --target=$BUILD_TARGET --disable-nls --with-sysroot=$BUILD_SYSROOT --enable-languages=c,c++ --enable-initfini-array
echo Building GCC...
make all-gcc -j$(nproc)
make all-target-libgcc -j$(nproc) CFLAGS_FOR_TARGET='-g -O2 -mcmodel=large -mno-red-zone'
echo Installing GCC...
make install-gcc
make install-target-libgcc
mkdir -p $LUNA_BUILD_DIR
cmake -S $LUNA_ROOT -B $LUNA_BUILD_DIR -G "$LUNA_CMAKE_GENERATOR_NAME" -DLIBC_BOOTSTRAP=1
cmake --build $LUNA_BUILD_DIR --target libc
make all-target-libstdc++-v3 CXXFLAGS_FOR_TARGET="-fno-exceptions" -j$(nproc)
make install-target-libstdc++-v3