1 files changed, 102 insertions, 0 deletions
diff --git a/run b/run
new file mode 100755
index 0000000..6e48550
--- /dev/null
+++ b/run
@@ -0,0 +1,102 @@
+#!/usr/bin/env sh
+# MIT License, Copyright (c) 2021 Marvin Borner
+
+set -e
+
+cd "$(dirname "$0")"
+
+MAKE=make
+NPROC=nproc
+SUDO=sudo
+TAGS=ctags
+
+mode="${1}"
+no_ask="${2}"
+
+build_cross() {
+    if [ ! -d "./cross/" ]; then
+        if [ "$no_ask" != "-y" ]; then
+            echo -n "Do you want to compile a cross compiler (this can take around 20 minutes)? [yn] "
+            read -r answer
+            if ! [ "$answer" != "${answer#[Yy]}" ]; then
+                echo "The compilation of melvix requires a cross compiler!"
+                exit 1
+            fi
+        fi
+
+        # Create directory
+        mkdir -p cross
+        cd cross
+        DIR=$(pwd)
+
+        # Get sources
+        mkdir "${DIR}/src" && cd "${DIR}/src"
+        echo "Downloading..."
+        curl "https://ftp.gnu.org/gnu/binutils/binutils-2.36.1.tar.gz" >binutils.tar.gz
+        tar xzf binutils.tar.gz
+        curl "https://ftp.gnu.org/gnu/gcc/gcc-11.1.0/gcc-11.1.0.tar.gz" >gcc.tar.gz
+        tar xzf gcc.tar.gz
+
+        # Prepare compiling
+        mkdir -p "${DIR}/opt/bin"
+        export PREFIX="${DIR}/opt"
+        export TARGET=i686-elf
+        export PATH="$PREFIX/bin:$PATH"
+
+        # Compile binutils
+        mkdir "${DIR}/src/build-binutils" && cd "${DIR}/src/build-binutils"
+        ../binutils-2.36.1/configure --target="$TARGET" --prefix="$PREFIX" --with-sysroot --disable-nls --disable-werror
+        $MAKE -j $($NPROC)
+        $MAKE install
+
+        # Compile GCC
+        mkdir "${DIR}/src/build-gcc" && cd "${DIR}/src/build-gcc"
+        ../gcc-11.1.0/configure --target="$TARGET" --prefix="$PREFIX" --disable-nls --enable-languages=c --without-headers
+        $MAKE -j $($NPROC) all-gcc all-target-libgcc
+        $MAKE install-gcc install-target-libgcc
+
+        cd "${DIR}/.."
+    fi
+}
+
+build() {
+    mkdir -p build/
+
+    # Build
+    printf "\nBuilding...\n"
+    $MAKE -j $($NPROC)
+
+    # Create disk image
+    dd if=/dev/zero of=build/disk.img bs=1k count=32k status=none
+    DEV=$($SUDO losetup --find --partscan --show build/disk.img)
+    PART="p1"
+    $SUDO parted -s "$DEV" mklabel msdos mkpart primary ext2 32k 100% -a minimal set 1 boot on
+    $SUDO mke2fs -b 1024 -q "$DEV$PART"
+    $SUDO dd if=build/boot.bin of="$DEV" conv=notrunc status=none
+
+    # Mount disk and copy files
+    #mkdir -p mnt/
+    #$SUDO mount "$DEV$PART" mnt/
+    #$SUDO mkdir -p mnt/boot/
+    #$SUDO umount mnt/ || (sync && $SUDO umount mnt/)
+    #rm -rf mnt/
+
+    $SUDO losetup -d "$DEV"
+}
+
+emulate() {
+    qemu-system-i386 -d guest_errors -cpu max -serial stdio -m 256M -vga std -drive file=build/disk.img,format=raw,index=1,media=disk
+}
+
+if [ "${mode}" = "cross" ]; then
+    build_cross
+elif [ "${mode}" = "build" ]; then
+    build_cross
+    $MAKE clean
+    build
+else
+    build_cross
+    $MAKE clean
+    build
+    emulate
+fi