Archipelago » qemu

all: build-all

include ../../config-host.mak

VPATH=$(SRC_PATH)/pc-bios/optionrom

# from kernel sources - scripts/Kbuild.include

# try-run

# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)

# Exit code chooses option. "$$TMP" is can be used as temporary file and

# is automatically cleaned up.

try-run = $(shell set -e;		\

	TMP="$(TMPOUT).$$$$.tmp";	\

	if ($(1)) >/dev/null 2>&1;	\

	then echo "$(2)";		\

	else echo "$(3)";		\

	fi;				\

	rm -f "$$TMP")

# cc-option-yn

# Usage: flag := $(call cc-option-yn,-march=winchip-c6)

cc-option-yn = $(call try-run,\

	$(CC) $(KBUILD_CFLAGS) $(1) -S -xc /dev/null -o "$$TMP",y,n)

CFLAGS = -Wall -Wstrict-prototypes -Werror -fomit-frame-pointer -fno-builtin

CFLAGS += -I$(SRC_PATH)

ifeq ($(call cc-option-yn,-fno-stack-protector),y)

CFLAGS += -fno-stack-protector

endif

build-all: multiboot.bin

%.o: %.S

	$(CC) $(CFLAGS) -o $@ -c $<

%.img: %.o

	$(LD) -Ttext 0 -e _start -s -o $@ $<

%.raw: %.img

	$(OBJCOPY) -O binary -j .text $< $@

%.bin: %.raw

	$(SRC_PATH)/pc-bios/optionrom/signrom.sh $< $@

	cp $@ $(SRC_PATH)/pc-bios/

clean:

	$(RM) *.o *.img *.bin *~