jos/boot/Makefrag
Anish Athalye 1a83673424 Lab 1
2018-08-30 15:17:20 -04:00

33 lines
848 B
Plaintext

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