46 lines
1.1 KiB
Makefile
46 lines
1.1 KiB
Makefile
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CROSS_COMPILE := i586-elf-
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export LD := $(CROSS_COMPILE)ld
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export CC := $(CROSS_COMPILE)gcc
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export CXX := $(CROSS_COMPILE)g++
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export OBJDUMP := $(CROSS_COMPILE)objdump
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export NASM := nasm
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export HOS_TOPLEVEL := $(shell pwd)
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LDSCRIPT := link.ld
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KERNEL := hos
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export CPPFLAGS := -I$(HOS_TOPLEVEL) -I$(HOS_TOPLEVEL)/include
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export CFLAGS := -Wall -O2
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export CXXFLAGS := -Wall -O2 -fno-rtti -fno-exceptions
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export LDFLAGS := -T $(LDSCRIPT) -Map $(KERNEL).map
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export LDLIBS := `$(CC) -print-libgcc-file-name`
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SUBDIRS := boot mm lang isr sys
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SUBDIRS_clean := $(SUBDIRS:%=%.clean)
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.PHONY: all
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all: $(KERNEL).gz
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$(KERNEL).gz: $(KERNEL)
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gzip -c $< > $@
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$(KERNEL): $(KERNEL).o
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$(LD) $(LDFLAGS) -o $@ $<
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$(OBJDUMP) --disassemble --source $@ > $@.dump
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# strip $@
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$(KERNEL).o: $(SUBDIRS)
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$(LD) -r -o $@ $(foreach subdir,$(SUBDIRS),$(subdir)/$(subdir)_all.o) $(LDLIBS)
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.PHONY: $(SUBDIRS)
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$(SUBDIRS):
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$(MAKE) -C $@ SUBDIR=$@
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.PHONY: clean
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clean: $(SUBDIRS_clean)
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-rm -f *~ $(KERNEL) $(KERNEL).{gz,o,elf,dump,map}
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%.clean:
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$(MAKE) -C $* clean clean=1
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