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The previous version made it necessary to first generate an EDID data set without correct CRC and then to fix the CRC in a second step. This patch adds the CRC calculation to the makefile in such a way that a correct EDID data set is generated in a single build step. Successfully tested with all existing and a couple of new data sets. Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.de> Reviewed-by: Carsten Emde <C.Emde@osadl.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
38 lines
707 B
Makefile
38 lines
707 B
Makefile
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SOURCES := $(wildcard [0-9]*x[0-9]*.S)
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BIN := $(patsubst %.S, %.bin, $(SOURCES))
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IHEX := $(patsubst %.S, %.bin.ihex, $(SOURCES))
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CODE := $(patsubst %.S, %.c, $(SOURCES))
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all: $(BIN) $(IHEX) $(CODE)
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clean:
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@rm -f *.o *.bin.ihex *.bin *.c
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%.o: %.S
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@cc -c $^
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%.bin.nocrc: %.o
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@objcopy -Obinary $^ $@
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%.crc: %.bin.nocrc
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@list=$$(for i in `seq 1 127`; do head -c$$i $^ | tail -c1 \
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| hexdump -v -e '/1 "%02X+"'; done); \
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echo "ibase=16;100-($${list%?})%100" | bc >$@
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%.p: %.crc %.S
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@cc -c -DCRC="$$(cat $*.crc)" -o $@ $*.S
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%.bin: %.p
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@objcopy -Obinary $^ $@
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%.bin.ihex: %.p
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@objcopy -Oihex $^ $@
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@dos2unix $@ 2>/dev/null
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%.c: %.bin
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@echo "{" >$@; hexdump -f hex $^ >>$@; echo "};" >>$@
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