libk: add its own makefile

1 files changed, 21 insertions, 14 deletions

diff --git a/makefile b/makefile
index 82e3bba..10cfacf 100644
--- a/makefile
+++ b/makefile
@@ -3,39 +3,46 @@
 # ?=	only set if it doesn't have a value
 # !=	execute a shell script on the right-hand side and assign its result to the left-hand side
 
-TARGET := i686-elf
+export TARGET := i686-elf
 
-NASM := nasm
-CXX := clang++
-CXXFLAGS := -std=c++20 -ffreestanding -nostdinc -fno-exceptions -fno-rtti -Wall -Wextra -O2
-INCLUDE := stdlib
-
-OBJ := kernel.o vga.o stdlib/string.o stdlib/stdlib/console.o
+export AR := llvm-ar
+export NASM := nasm
+export LD := ld.lld
+export CXX := clang++
+export CXX_FLAGS := -std=c++20 -ffreestanding -nostdinc -fno-exceptions -fno-rtti -Wall -Wextra -O2
+CXX_INCLUDE := libk
+CXX_OBJ := kernel.o vga.o
 
 # $@ is target
 # $< is first dependency
 # $^ is all dependencies
 
-default: boot.o $(OBJ)
-	ld.lld -T linker.ld -o myos.bin boot.o $(OBJ)
+default: myos.bin
+
+myos.bin: boot.o $(CXX_OBJ) libk/libk.a
+	$(LD) -T linker.ld -o myos.bin boot.o $(CXX_OBJ) -Llibk -lk
 
 boot.o: boot.asm
 	$(NASM) -felf32 -o $@ $^
 
-$(OBJ): %.o : %.cc
-	$(CXX) -target $(TARGET) $(CXXFLAGS) -I$(INCLUDE) -c $^ -o $@
+$(CXX_OBJ): %.o : %.cc
+	$(CXX) -target $(TARGET) $(CXX_FLAGS) -I$(CXX_INCLUDE) -c $^ -o $@
+
+libk/libk.a:
+	$(MAKE) -C libk libk.a
 
-iso:
+iso: myos.bin
 	mkdir -p isodir/boot/grub
 	cp myos.bin isodir/boot/myos.bin
 	cp grub.cfg isodir/boot/grub/grub.cfg
 	grub-mkrescue -o myos.iso isodir
 
-run:
+run: myos.bin
 	qemu-system-i386 -kernel myos.bin
 
 clean:
-	rm boot.o $(OBJ) myos.bin
+	rm boot.o $(CXX_OBJ) myos.bin
+	$(MAKE) -C libk clean
 
 clean-iso:
 	rm -rf isodir