1include config.mak 2SRC_DIR := $(TOPSRC_DIR)/pc-bios/optionrom 3VPATH = $(SRC_DIR) 4 5all: multiboot.bin multiboot_dma.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin 6# Dummy command so that make thinks it has done something 7 @true 8 9CFLAGS = -O2 -g 10 11quiet-command = $(if $(V),$1,$(if $(2),@printf " %-7s %s\n" $2 $3 && $1, @$1)) 12cc-option = $(if $(shell $(CC) $1 -c -o /dev/null -xc /dev/null >/dev/null 2>&1 && echo OK), $1, $2) 13 14override CFLAGS += -march=i486 -Wall $(EXTRA_CFLAGS) -m16 15 16# If -fcf-protection is enabled in flags or compiler defaults that will 17# conflict with -march=i486 18override CFLAGS += $(call cc-option, -fcf-protection=none) 19 20# Flags for dependency generation 21override CPPFLAGS += -MMD -MP -MT $@ -MF $(@D)/$(*F).d 22 23override CFLAGS += $(call cc-option, -fno-pie) 24override CFLAGS += $(call cc-option, -no-pie) 25override CFLAGS += -ffreestanding -I$(TOPSRC_DIR)/include 26override CFLAGS += $(call cc-option, -fno-stack-protector) 27override CFLAGS += $(call cc-option, -Wno-array-bounds) 28 29override LDFLAGS = -nostdlib -Wl,-T,$(SRC_DIR)/flat.lds 30 31pvh.img: pvh.o pvh_main.o 32 33%.o: %.S 34 $(call quiet-command,$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<,"AS","$@") 35 36%.o: %.c 37 $(call quiet-command,$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@,"CC","$@") 38 39%.img: %.o 40 $(call quiet-command,$(CC) $(CFLAGS) $(LDFLAGS) -s -o $@ $^,"BUILD","$@") 41 42%.raw: %.img 43 $(call quiet-command,$(OBJCOPY) -O binary -j .text $< $@,"BUILD","$@") 44 45%.bin: %.raw 46 $(call quiet-command,$(PYTHON) $(TOPSRC_DIR)/scripts/signrom.py $< $@,"SIGN","$@") 47 48include $(wildcard *.d) 49 50clean: 51 rm -f *.o *.d *.raw *.img *.bin *~ 52 53# suppress auto-removal of intermediate files 54.SECONDARY: 55 56.PHONY: all clean 57