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CXXFLAGS := -m32 -ggdb -g3 -O1 -fno-pic -fno-rtti -fno-exceptions -std=c++23 \
-Wall -Wextra -pedantic -Werror
LDFLAGS := $(CXXFLAGS) -T link.ld -static -nostdlib -fno-use-cxa-atexit
CXXFILES := $(wildcard src/*.cpp)
PROJECT := myos
PRJISO := $(PROJECT).iso
PRJBIN := $(PROJECT).bin
OBJS := $(patsubst src/%.cpp,out/%.o,$(CXXFILES))
all: $(PRJISO)
$(PRJISO): iso/boot/$(PRJBIN) iso/boot/grub/grub.cfg
@echo " ISO " $@
@grub-mkrescue -o $@ iso/
iso/boot/$(PRJBIN): $(OBJS) link.ld
@echo " LD " $@
@g++ $(LDFLAGS) -o $@ $(OBJS)
out/:
@mkdir out
out/%.o: src/%.cpp
@echo " CXX " $<
@g++ $(CXXFLAGS) -c $< -o $@
clean:
@echo " CLEAN"
@rm -f $(OBJS) $(PRJBIN) $(PRJISO)
run: myos.iso
@echo " QEMU"
@qemu-system-i386 -drive file=$<,index=2,media=cdrom -monitor stdio -no-reboot #-s -S #-d int
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