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70 lines
2.0 KiB
Makefile
70 lines
2.0 KiB
Makefile
include config.mak
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SRC_DIR := $(TOPSRC_DIR)/pc-bios/optionrom
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VPATH = $(SRC_DIR)
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all: multiboot.bin multiboot_dma.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
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# Dummy command so that make thinks it has done something
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@true
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CFLAGS = -O2 -g
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NULL :=
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SPACE := $(NULL) #
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TARGET_PREFIX := $(patsubst %/,%:$(SPACE),$(TARGET_DIR))
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quiet-@ = $(if $(V),,@$(if $1,printf "%s\n" "$(TARGET_PREFIX)$1" && ))
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quiet-command = $(call quiet-@,$2 $@)$1
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# Flags for dependency generation
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override CPPFLAGS += -MMD -MP -MT $@ -MF $(@D)/$(*F).d
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override CFLAGS += -march=i486 -Wall $(EXTRA_CFLAGS) -m16
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override CFLAGS += -ffreestanding -I$(TOPSRC_DIR)/include
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cc-test = $(CC) -Werror $1 -c -o /dev/null -xc /dev/null >/dev/null 2>/dev/null
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cc-option = if $(call cc-test, $1); then \
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echo "$(TARGET_PREFIX)$1 detected" && echo "override CFLAGS += $1" >&3; else \
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echo "$(TARGET_PREFIX)$1 not detected" $(if $2,&& echo "override CFLAGS += $2" >&3); fi
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# If -fcf-protection is enabled in flags or compiler defaults that will
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# conflict with -march=i486
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config-cc.mak: Makefile
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$(quiet-@)($(call cc-option,-fcf-protection=none); \
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$(call cc-option,-fno-pie); \
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$(call cc-option,-no-pie); \
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$(call cc-option,-fno-stack-protector); \
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$(call cc-option,-Wno-array-bounds)) 3> config-cc.mak
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-include config-cc.mak
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override LDFLAGS = -nostdlib -Wl,--build-id=none,-T,$(SRC_DIR)/flat.lds
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pvh.img: pvh.o pvh_main.o
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%.o: %.S
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$(call quiet-command,$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $<,Assembling)
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%.o: %.c
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$(call quiet-command,$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@,Compiling)
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%.img: %.o
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$(call quiet-command,$(CC) $(CFLAGS) $(LDFLAGS) -s -o $@ $^,Linking)
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%.raw: %.img
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$(call quiet-command,$(OBJCOPY) -O binary -j .text $< $@,Extracting raw object)
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%.bin: %.raw
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$(call quiet-command,$(PYTHON) $(TOPSRC_DIR)/scripts/signrom.py $< $@,Computing checksum into)
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include $(wildcard *.d)
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clean:
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rm -f *.o *.d *.raw *.img *.bin *~
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distclean:
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rm -f config-cc.mak
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# suppress auto-removal of intermediate files
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.SECONDARY:
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.PHONY: all clean distclean
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