.gitignore

@@ -1,2 +1,3 @@
 /target
-/build
+/iso
+/gila.iso

Makefile

@@ -1,38 +0,0 @@
-
-TARGET ?= "x86_64-unknown-none"
-
-all: clean prepare gila iso run
-
-# Prepare toolchain
-prepare:
-	rustup install nightly
-	rustup target add $(TARGET)
-
-# Run the ISO in an emulator.
-run: build/gila.iso
-	qemu-system-x86_64 -drive file=build/gila.iso,format=raw,index=0,media=disk
-
-# Build the bootable kernel image.
-.PHONY: build/iso/gila
-gila: prepare $(wildcard src/*.rs)
-	mkdir -p build/iso/
-	cargo build --release -Z unstable-options --target=$(TARGET) --artifact-dir build/iso/
-
-# Build a bootable ISO and install Limine.
-.PHONY: build/gila.iso
-iso: build/iso/gila gila limine.conf
-	mkdir -p build/iso/limine
-	mkdir -p build/iso/EFI/BOOT
-	cp ./limine.conf build/iso/
-	cp /usr/share/limine/limine-bios.sys build/iso/limine/
-	cp /usr/share/limine/limine-bios-cd.bin build/iso/limine/
-	cp /usr/share/limine/limine-uefi-cd.bin build/iso/limine/
-	xorriso -as mkisofs -b limine/limine-bios-cd.bin -no-emul-boot \
-	-boot-load-size 4 -boot-info-table --efi-boot \
-    limine/limine-uefi-cd.bin -efi-boot-part --efi-boot-image \
-    --protective-msdos-label build/iso -o build/gila.iso
-	limine bios-install build/gila.iso
-
-clean:
-	rm -rf build
-	cargo clean

README.md

@@ -28,21 +28,12 @@ Licensed under the GNU Public License v3. See [LICENSE](LICENSE) for details.
 
 To build an ISO image that you can boot, there are several prerequisites:
 
-- `rustup` command installed
 - `limine` command installed
 - `xorriso` command installed
-- `make` command installed
-- `qemu-system-x86_64` command installed (for running)
 
-Then run `make` to invoke the [Makefile](Makefile).
+Then run the [build_iso.sh](build_iso.sh) script. It will generate `gila.iso`.
 
-- `make prepare`: Installs needed Rust toolchain.
+Running the kernel requires `qemu-system-{ARCH}`.
-- `make clean`: Cleans all built files.
-- `make gila`: Builds the kernel ELF file.
-- `make iso`: Builds the bootable ISO with Limine installed.
-- `make run`: Builds the ISO and boots it in QEMU.
-
-TODO: This build setup is not compatible with anything other than `x86_64`.
 
 You can install all these dependencies automatically by using `nix-shell` and
 supplying [shell.nix](shell.nix) as an argument.

build_iso.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+    echo "Argument 1 must be the Rust target triple."
+    exit 1
+fi
+
+SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 || exit 1 ; pwd -P )"
+cd "$SCRIPTPATH" || exit 1
+
+rm -rf ./iso/
+rm ./gila.iso
+#cargo clean
+
+set -euxo pipefail
+
+mkdir -p ./iso/limine/
+cp ./limine.conf ./iso/
+cp /usr/share/limine/limine-bios.sys ./iso/limine/
+cp /usr/share/limine/limine-bios-cd.bin ./iso/limine/
+cp /usr/share/limine/limine-uefi-cd.bin ./iso/limine/
+
+cargo build --target="$1" --release
+cp target/"$1"/release/gila ./iso/
+
+xorriso -as mkisofs -b limine/limine-bios-cd.bin -no-emul-boot \
+    -boot-load-size 4 -boot-info-table --efi-boot \
+    limine/limine-uefi-cd.bin -efi-boot-part --efi-boot-image \
+    --protective-msdos-label iso -o gila.iso
+
+limine bios-install gila.iso

shell.nix

@@ -16,7 +16,6 @@ pkgs.mkShell {
     xorriso
     rustup
     qemu
-    make
 
   ];
 

src/display.rs

@@ -1,5 +1,4 @@
 #![allow(dead_code)]
-#![allow(unused_variables)]
 
 use vga;
 pub use vga::writers::TextWriter;