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77 lines
2.0 KiB
77 lines
2.0 KiB
CFLAGS += -Wall -Os -I. -mmcu=attiny26 -std=c99
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DEFINES += -DF_CPU=16e6
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OBJECTS = gg.o mmc.o #ringbuf_small.o
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# further optimization:
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# this removes dead code and does global linker optimization
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#CFLAGS += -ffunction-sections -Wl,--gc-sections -Wl,--relax
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#CFLAGS += --param inline-call-cost=2
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COMPILE = avr-gcc $(CFLAGS) $(DEFINES)
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# symbolic targets:
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all: firmware.hex
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.c.o:
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$(COMPILE) -c $< -o $@
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.S.o:
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$(COMPILE) -x assembler-with-cpp -c $< -o $@
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# "-x assembler-with-cpp" should not be necessary since this is the default
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# file type for the .S (with capital S) extension. However, upper case
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# characters are not always preserved on Windows. To ensure WinAVR
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# compatibility define the file type manually.
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.c.s:
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$(COMPILE) -S $< -o $@
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flash: all
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avrdude -c usbasp -p t26 -U flash:w:firmware.hex
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fuses:
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avrdude -c usbasp -p t26 -U lfuse:w:0x61:m # -U hfuse:w:0xf7:m # internal 8Mhz oscillator
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## what are the source dependencies
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%.d: %.c
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@set -e; rm -f $@; \
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$(COMPILE) -MM $< | sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' > $@;
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# line 1: exits if anything goes wrong
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# line 2a: gcc -MM outputs dependencies
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# line 2b: insert the %.d into dependency list
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#main.c: version.h
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version.h: .svn/entries
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export LANG=POSIX; (svn info 2>/dev/null || echo "Revision: unknown") | awk '/^Revision:/ {print "#define SVNVERSION \"" $$2 "\""};' >version.h
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clean:
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rm -f *.o *.hex *.obj *.i *.s *.d */*.i */*.s */*.o */*.d version.h
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# file targets:
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firmware.bin: $(OBJECTS)
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$(COMPILE) -o firmware.bin $(OBJECTS)
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firmware.hex: firmware.bin
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rm -f firmware.hex firmware.eep.hex
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avr-objcopy -j .text -j .data -O ihex firmware.bin firmware.hex
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avr-size firmware.bin
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# ./checksize firmware.bin 8192 960
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# do the checksize script as our last action to allow successful compilation
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# on Windows with WinAVR where the Unix commands will fail.
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disasm: firmware.bin
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avr-objdump -d firmware.bin >disasm
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functionsize: disasm
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python avrbuild/functionsize.py
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countregs: disasm
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python avrbuild/countregs.py
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# for depends:
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-include $(OBJECTS:.o=.d)
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