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