diff options
Diffstat (limited to 'pc-bios/optionrom/Makefile')
| -rw-r--r-- | pc-bios/optionrom/Makefile | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/pc-bios/optionrom/Makefile b/pc-bios/optionrom/Makefile new file mode 100644 index 0000000000..c4a6f42625 --- /dev/null +++ b/pc-bios/optionrom/Makefile @@ -0,0 +1,48 @@ +all: build-all + +include ../../config-host.mak + +VPATH=$(SRC_PATH)/pc-bios/optionrom +OBJCOPY=objcopy + +# 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) --oformat binary -Ttext 0 -o $@ $< + +%.bin: %.img signrom + ./signrom $< $@ + cp $@ $(SRC_PATH)/pc-bios/ + +signrom: signrom.c + $(CC) -o $@ -g -Wall $^ + +clean: + $(RM) *.o *.img *.bin signrom *~ |