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OBJ=bootstub.o spi-uart.o head.o sfi.o e820_bios.o ssp-uart.o
CMDLINE_SIZE ?= 0x400
CFLAGS=-m32 -ffreestanding -Wall -DCMDLINE_SIZE=${CMDLINE_SIZE}
CC ?= gcc
all: bootstub
bootstub:bootstub.bin
cat bootstub.bin /dev/zero | dd bs=4096 count=1 > $@
bootstub.bin:bootstub.elf
objcopy -O binary -R .note -R .comment -S $< $@
bootstub.elf:bootstub.lds $(OBJ)
ld -m elf_i386 -T bootstub.lds $(OBJ) -o $@
bootstub.o:bootstub.c bootstub.h
${CC} $(CFLAGS) -c bootstub.c
spi-uart.o:spi-uart.c spi-uart.h
${CC} $(CFLAGS) -c spi-uart.c
ssp-uart.o:ssp-uart.c ssp-uart.h
${CC} $(CFLAGS) -c ssp-uart.c
sfi.o:sfi.c
${CC} $(CFLAGS) -c sfi.c
head.o:head.S bootstub.h
${CC} $(CFLAGS) -D__ASSEMBLY__ -c head.S
e820_bios.o:e820_bios.S bootstub.h
${CC} $(CFLAGS) -D__ASSEMBLY__ -c e820_bios.S
clean:
rm -rf *.o *.bin *.elf *.bz2 *.rpm
source:bootstub.c head.S VERSION
git archive --prefix=bootstub-`head -n 1 VERSION | awk '{print $$1}'`/ --format=tar HEAD | bzip2 -c > bootstub-`head -n 1 VERSION | awk '{print $$1}'`.tar.bz2
rpm:source
cp bootstub.spec /usr/src/redhat/SPECS/
cp *.tar.bz2 /usr/src/redhat/SOURCES/
rpmbuild -ba /usr/src/redhat/SPECS/bootstub.spec
cp /usr/src/redhat/RPMS/i386/bootstub*.rpm ./
.PHONY: all clean source rpm
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