33 lines
848 B
Plaintext
33 lines
848 B
Plaintext
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#
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# Makefile fragment for the JOS kernel.
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# This is NOT a complete makefile;
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# you must run GNU make in the top-level directory
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# where the GNUmakefile is located.
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#
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OBJDIRS += boot
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BOOT_OBJS := $(OBJDIR)/boot/boot.o $(OBJDIR)/boot/main.o
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$(OBJDIR)/boot/%.o: boot/%.c
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@echo + cc -Os $<
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@mkdir -p $(@D)
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$(V)$(CC) -nostdinc $(KERN_CFLAGS) -Os -c -o $@ $<
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$(OBJDIR)/boot/%.o: boot/%.S
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@echo + as $<
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@mkdir -p $(@D)
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$(V)$(CC) -nostdinc $(KERN_CFLAGS) -c -o $@ $<
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$(OBJDIR)/boot/main.o: boot/main.c
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@echo + cc -Os $<
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$(V)$(CC) -nostdinc $(KERN_CFLAGS) -Os -c -o $(OBJDIR)/boot/main.o boot/main.c
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$(OBJDIR)/boot/boot: $(BOOT_OBJS)
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@echo + ld boot/boot
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$(V)$(LD) $(LDFLAGS) -N -e start -Ttext 0x7C00 -o $@.out $^
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$(V)$(OBJDUMP) -S $@.out >$@.asm
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$(V)$(OBJCOPY) -S -O binary -j .text $@.out $@
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$(V)perl boot/sign.pl $(OBJDIR)/boot/boot
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