setup: initialize repo + limine as a bootloader

1 files changed, 56 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..6252139
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,56 @@
+# Revel — build the kernel, assemble a Limine ISO, boot it in QEMU.
+#
+#   make            build the ISO (default)
+#   make run        build and boot it headless (serial on stdout)
+#   make kernel     just compile the kernel ELF
+#   make clean      remove build output (kernel, ISO, caches)
+#   make distclean  also remove Limine's built host tool
+
+ZIG  ?= zig
+QEMU ?= qemu-system-x86_64
+
+KERNEL := zig-out/bin/revel
+ISO    := revel.iso
+
+.PHONY: all kernel iso run clean distclean
+
+all: iso
+
+kernel:
+	$(ZIG) build
+
+limine/limine:
+	$(MAKE) -C limine
+
+iso: kernel limine/limine
+	rm -rf iso_root
+	mkdir -p iso_root/boot/limine iso_root/EFI/BOOT
+	cp $(KERNEL)                       iso_root/boot/revel
+	cp boot/limine.conf                iso_root/boot/limine/
+	cp limine/limine-bios.sys    \
+	   limine/limine-bios-cd.bin \
+	   limine/limine-uefi-cd.bin       iso_root/boot/limine/
+	cp limine/BOOTX64.EFI \
+	   limine/BOOTIA32.EFI             iso_root/EFI/BOOT/
+	xorriso -as mkisofs -R -r -J                                 \
+		-b boot/limine/limine-bios-cd.bin                        \
+		-no-emul-boot -boot-load-size 4 -boot-info-table         \
+		-hfsplus -apm-block-size 2048                            \
+		--efi-boot boot/limine/limine-uefi-cd.bin                \
+		-efi-boot-part --efi-boot-image --protective-msdos-label \
+		iso_root -o $(ISO)
+	./limine/limine bios-install $(ISO)
+
+# for now this is just going to be a headless run
+# all I need this for is to check for kernel panics
+# and limine related failures.
+run: iso
+	$(QEMU) -M q35 -m 256M -cdrom $(ISO) -boot d   \
+	        -display none -serial stdio -no-reboot \
+			-no-shutdown
+
+clean:
+	rm -rf iso_root zig-out .zig-cache $(ISO)
+
+distclean: clean
+	rm -f limine/limine