BuildSystem: Rewrite whole build system structure

Now you have to use script/build.sh for building and running banan-os

toolchain/Toolchain.txt

@@ -0,0 +1,18 @@
+if (NOT DEFINED ENV{BANAN_ARCH})
+	message(FATAL_ERROR "environment variable BANAN_ARCH not defined")
+endif ()
+
+set(BANAN_ARCH $ENV{BANAN_ARCH})
+
+set(TOOLCHAIN_PREFIX ${CMAKE_SOURCE_DIR}/toolchain/local)
+
+set(CMAKE_SYSTEM_NAME banan-os)
+set(CMAKE_SYSTEM_PROCESSOR AMD64)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}/bin/${BANAN_ARCH}-banan_os-g++)
+set(CMAKE_CXX_COMPILER_WORKS True)
+
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}/bin/${BANAN_ARCH}-banan_os-gcc)
+set(CMAKE_C_COMPILER_WORKS True)

toolchain/build.sh

@@ -5,22 +5,23 @@ BINUTILS_VERSION="binutils-2.39"
 GCC_VERSION="gcc-12.2.0"
 GRUB_VERSION="grub-2.06"
 
-cd $(dirname "$0")
-
-if [[ -n $LIBSTDCPP ]]; then
-	cd build/${GCC_VERSION}/
-	make -j $(nproc) all-target-libstdc++-v3
-	make install-target-libstdc++-v3
-	exit 0
-fi
-
-if [[ -z $SYSROOT ]]; then
-	echo "You must set the SYSROOT environment variable" >&2
+if [[ -z $BANAN_SYSROOT ]]; then
+	echo "You must set the BANAN_SYSROOT environment variable" >&2
 	exit 1
 fi
 
-if [[ -z $TOOLCHAIN_PREFIX ]]; then
-	echo "You must set the TOOLCHAIN_PREFIX environment variable" >&2
+if [[ -z $BANAN_TOOLCHAIN_DIR ]]; then
+	echo "You must set the BANAN_TOOLCHAIN_DIR environment variable" >&2
+	exit 1
+fi
+
+if [[ -z $BANAN_TOOLCHAIN_PREFIX ]]; then
+	echo "You must set the BANAN_TOOLCHAIN_PREFIX environment variable" >&2
+	exit 1
+fi
+
+if [[ -z $BANAN_TOOLCHAIN_TRIPLE_PREFIX ]]; then
+	echo "You must set the BANAN_TOOLCHAIN_TRIPLE_PREFIX environment variable" >&2
 	exit 1
 fi
 
@@ -29,12 +30,11 @@ if [[ -z $BANAN_ARCH ]]; then
 	exit 1
 fi
 
-TARGET="${BANAN_ARCH}-banan_os"
-
-if [ ! -f ${TOOLCHAIN_PREFIX}/bin/${TARGET}-ld ]; then
-
+build_binutils () {
 	echo "Building ${BINUTILS_VERSION}"
 
+	cd $BANAN_TOOLCHAIN_DIR
+
 	if [ ! -f ${BINUTILS_VERSION}.tar.xz ]; then
 		wget https://ftp.gnu.org/gnu/binutils/${BINUTILS_VERSION}.tar.xz
 	fi
@@ -45,26 +45,24 @@ if [ ! -f ${TOOLCHAIN_PREFIX}/bin/${TARGET}-ld ]; then
 	fi
 
 	mkdir -p build/${BINUTILS_VERSION}/
-	pushd build/${BINUTILS_VERSION}/
+	cd build/${BINUTILS_VERSION}/
 
 	../../${BINUTILS_VERSION}/configure \
-		--target="$TARGET" \
-		--prefix="$TOOLCHAIN_PREFIX" \
-		--with-sysroot="$SYSROOT" \
+		--target="$BANAN_TOOLCHAIN_TRIPLE_PREFIX" \
+		--prefix="$BANAN_TOOLCHAIN_PREFIX" \
+		--with-sysroot="$BANAN_SYSROOT" \
 		--disable-nls \
 		--disable-werror
 
 	make -j $(nproc)
 	make install
+}
 
-	popd
-
-fi
-
-if [ ! -f ${TOOLCHAIN_PREFIX}/bin/${TARGET}-g++ ]; then
-
+build_gcc () {
 	echo "Building ${GCC_VERSION}"
 
+	cd $BANAN_TOOLCHAIN_DIR
+
 	if [ ! -f ${GCC_VERSION}.tar.xz ]; then
 		wget https://ftp.gnu.org/gnu/gcc/${GCC_VERSION}/${GCC_VERSION}.tar.xz
 	fi
@@ -75,27 +73,25 @@ if [ ! -f ${TOOLCHAIN_PREFIX}/bin/${TARGET}-g++ ]; then
 	fi
 
 	mkdir -p build/${GCC_VERSION}/
-	pushd build/${GCC_VERSION}/
+	cd build/${GCC_VERSION}/
 
 	../../${GCC_VERSION}/configure \
-		--target="$TARGET" \
-		--prefix="$TOOLCHAIN_PREFIX" \
-		--with-sysroot="$SYSROOT" \
+		--target="$BANAN_TOOLCHAIN_TRIPLE_PREFIX" \
+		--prefix="$BANAN_TOOLCHAIN_PREFIX" \
+		--with-sysroot="$BANAN_SYSROOT" \
 		--disable-nls \
 		--enable-languages=c,c++
 
 	make -j $(nproc) all-gcc 
 	make -j $(nproc) all-target-libgcc CFLAGS_FOR_TARGET='-g -O2 -mcmodel=large -mno-red-zone'
 	make install-gcc install-target-libgcc
+}
 
-	popd
-
-fi
-
-if [ ! -f ${TOOLCHAIN_PREFIX}/bin/grub-mkstandalone ]; then
-
+build_grub () {
 	echo "Building ${GRUB_VERSION}"
 
+	cd $BANAN_TOOLCHAIN_DIR
+
 	if [ ! -f ${GRUB_VERSION}.tar.xz ]; then
 		wget https://ftp.gnu.org/gnu/grub/${GRUB_VERSION}.tar.xz
 	fi
@@ -105,17 +101,29 @@ if [ ! -f ${TOOLCHAIN_PREFIX}/bin/grub-mkstandalone ]; then
 	fi
 
 	mkdir -p build/${GRUB_VERSION}/
-	pushd build/${GRUB_VERSION}/
+	cd build/${GRUB_VERSION}/
 
 	../../${GRUB_VERSION}/configure \
 		--target="$BANAN_ARCH" \
-		--prefix="$TOOLCHAIN_PREFIX" \
+		--prefix="$BANAN_TOOLCHAIN_PREFIX" \
 		--with-platform="efi" \
 		--disable-werror
 	
 	make -j $(nproc)
 	make install
+}
 
-	popd
+build_libstdcpp () {
+	cd build/${GCC_VERSION}/
+	make -j $(nproc) all-target-libstdc++-v3
+	make install-target-libstdc++-v3
+}
 
+if [[ "$1" == "libstdc++" ]]; then
+	build_libstdcpp
+	exit 0
 fi
+
+build_binutils
+build_gcc
+build_grub