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obj-y = code16.o entry.o main.o string.o printf.o cstart.o fw_cfg.o
obj-y += linuxboot.o malloc.o tables.o hwsetup.o pci.o code32seg.o
obj-y += mptable.o
all-y = bios.bin
all: $(all-y)
CFLAGS := -O2 -g
BIOS_CFLAGS += $(autodepend-flags) -Wall
BIOS_CFLAGS += -m32
BIOS_CFLAGS += -march=i386
BIOS_CFLAGS += -mregparm=3
BIOS_CFLAGS += -fno-stack-protector -fno-delete-null-pointer-checks
BIOS_CFLAGS += -ffreestanding
BIOS_CFLAGS += -mstringop-strategy=rep_byte -minline-all-stringops
BIOS_CFLAGS += -Iinclude
BIOS_CFLAGS += -fno-pic
code32seg.o-cflags = -fno-jump-tables
dummy := $(shell mkdir -p .deps)
autodepend-flags = -MMD -MF .deps/cc-$(patsubst %/,%,$(dir $*))-$(notdir $*).d
-include .deps/*.d
.PRECIOUS: %.o
%.o: %.c
$(CC) $(CFLAGS) $(BIOS_CFLAGS) $($@-cflags) -c -s $< -o $@
%.o: %.S
$(CC) $(CFLAGS) $(BIOS_CFLAGS) -c -s $< -o $@
bios.bin.elf: $(obj-y) flat.lds
$(LD) -T flat.lds -o bios.bin.elf $(obj-y)
bios.bin: bios.bin.elf
objcopy -O binary bios.bin.elf bios.bin
clean:
rm -f $(obj-y) $(all-y) bios.bin.elf
rm -f cscope.* tags TAGS
rm -rf .deps
.PHONY: cscope
cscope:
rm -f cscope.*
find . -name "*.[chsS]" -print | sed 's,^\./,,' > cscope.files
cscope -b -i cscope.files
.PHONY: ctags
ctags:
rm -f tags
find . -name "*.[ch]" -exec ctags --append {} +
.PHONY: TAGS
TAGS:
rm -f TAGS
find . -name "*.[ch]" -exec etags --append {} +
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