Luna/tools/setup-gcc.sh
apio b6f2b41f1f Toolchain: Build libstdc++ just after gcc and libgcc
This means... C++ userland programs!!
Some parts of the standard library still have weird behavior. For example, do not try to use std::cout. That page-faults.
2022-11-09 11:56:08 +01:00

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#!/usr/bin/env bash
set -e
source $(dirname $0)/setup-env.sh
cd $LUNA_ROOT
if [ ! -x $(command -v x86_64-luna-as) ]
then
echo Binutils should be cross-built before GCC.
exit 1
fi
tools/install-headers.sh # install the LibC headers before building GCC
mkdir -p toolchain/tarballs
mkdir -p toolchain/build
if [ ! -f toolchain/tarballs/gcc-$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-$LUNA_GCC_VERSION_REQUIRED.tar.xz
fi
rm -rf toolchain/build/gcc
rm -rf toolchain/build/gcc-$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 $LUNA_ROOT/tools/gcc.patch -p 1 -d build | filter-lines "gcc" "patch"
cd -
echo Configuring GCC...
mkdir -p toolchain/build/gcc
cd toolchain/build/gcc
unset CC
unset CXX
unset LD
unset AR
../gcc-$LUNA_GCC_VERSION_REQUIRED/configure --prefix="$BUILD_PREFIX" --target=$BUILD_TARGET --disable-nls --with-sysroot=$BUILD_SYSROOT --enable-languages=c,c++ --without-headers | filter-lines "gcc" "configure"
echo Building GCC...
make all-gcc -j$(nproc) | filter-lines "gcc" "build"
make all-target-libgcc -j$(nproc) CFLAGS_FOR_TARGET='-g -O2 -mcmodel=large -mno-red-zone' | filter-lines "libgcc" "build"
echo Installing GCC...
make install-gcc | filter-lines "gcc" "install"
make install-target-libgcc | filter-lines "libgcc" "install"
echo Building libstdc++...
$LUNA_ROOT/tools/sync-libc.sh # libstdc++ needs libc to be built
make all-target-libstdc++v3 -j$(nproc) | filter-lines "libstdc++" "build"
echo Installing libstdc++...
make install-target-libstdc++v3 | filter-lines "libstdc++" "install"