Added very basic kernel and vga driver

1 files changed, 31 insertions, 0 deletions

diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..e0c6270
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,31 @@
+#!/usr/bin/env sh
+# Builds the operating system image
+
+# Install and source cross compiler if not already installed
+. ./cross.sh
+
+# Create build directories
+rm -rf ./build/ ./iso/
+mkdir ./build/
+
+# Make source files
+i686-elf-as ./src/boot.s -o ./build/boot.o
+i686-elf-gcc -c ./src/kernel.c -o ./build/kernel.o -std=gnu99 -ffreestanding -O2 -Wall -Wextra
+i686-elf-gcc -T ./src/linker.ld -o ./build/melvix.bin -ffreestanding -O2 -nostdlib ./build/boot.o ./build/kernel.o -lgcc
+
+# Testing
+if grub-file --is-x86-multiboot ./build/melvix.bin; then
+  echo Multiboot confirmed
+else
+  echo Melvix has errors and won\'t be able to multi boot!
+  exit
+fi
+
+# Create ISO
+mkdir -p ./iso/boot/grub
+cp ./build/melvix.bin ./iso/boot/
+cp ./src/grub.cfg ./iso/boot/grub/
+grub-mkrescue -o ./build/melvix.iso ./iso/
+
+# Run ISO
+qemu-system-x86_64 -cdrom ./build/melvix.iso