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update Makefile

master
Olaf Rempel 6 years ago
parent
commit
33fd6d1690
2 changed files with 54 additions and 39 deletions
  1. +2
    -1
      .gitignore
  2. +52
    -38
      Makefile

+ 2
- 1
.gitignore View File

@@ -3,5 +3,6 @@
*.bin
*.hex
*.lst
*.lss
*.map
ldscript-no-vectors.x
ldscript-no-vectors-*.x

+ 52
- 38
Makefile View File

@@ -1,54 +1,68 @@
PRG = fc_boot
OBJ = main.o
MCU_TARGET = atmega644p
OPTIMIZE = -Os
CC := avr-gcc
LD := avr-ld
OBJCOPY := avr-objcopy
OBJDUMP := avr-objdump
SIZE := avr-size

DEFS =
LIBS =
TARGET = fc_boot
SOURCE = $(wildcard *.c)

LDSCRIPT_SRC := /usr/lib/ldscripts/avr5.x
LDSCRIPT_DST := ldscript-no-vectors.x
# select MCU
MCU = atmega644p

# Override is only needed by avr-lib build system.
override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS)
override LDFLAGS = -Wl,-Map,$(PRG).map,--section-start=.text=0xF800,-T$(LDSCRIPT_DST)
AVRDUDE_PROG := -c avr910 -b 115200 -P /dev/ttyUSB0
#AVRDUDE_PROG := -c dragon_isp -P usb

CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
# ---------------------------------------------------------------------------

#LDSCRIPT_SRC := $(shell LANG=C $(CC) $(CFLAGS) -Wl,--verbose 2> /dev/null | awk '/^opened script file (.*)$$/{ print $$4 }')
ifeq ($(MCU), atmega644p)
AVRDUDE_MCU=m644p

all: $(PRG).elf lst text
$(SIZE) -x -A $(PRG).elf
# (20MHz ext. Crystal, 2.7V BOD)
AVRDUDE_FUSES=lfuse:w:0xff:m hfuse:w:0xdc:m efuse:w:0xfd:m
BOOTLOADER_START=0xF800
endif

$(PRG).elf: $(OBJ) | $(LDSCRIPT_DST)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS)
# ---------------------------------------------------------------------------

$(LDSCRIPT_DST): $(LDSCRIPT_SRC)
# remove all lines with *vectors* and insert DISCARD line above .text declaration
sed -e '/.*vectors.*/d' -e 's/\(^[ \t]*\)\(.text[ \t]*\:\)$$/\1\/DISCARD\/ : { *(.vectors) }\n\1\2/g' $^ > $@
# -diff -uNr $^ $@ > $@.diff
CFLAGS = -pipe -g -Os -mmcu=$(MCU) -Wall
CFLAGS += -fdata-sections -ffunction-sections
CFLAGS += -Wa,-adhlns=$(*F).lst
CFLAGS += -DBOOTLOADER_START=$(BOOTLOADER_START)
LDFLAGS = -Wl,-Map,$(@:.elf=.map),--cref,--section-start=.text=$(BOOTLOADER_START)
LDFLAGS += -Wl,--relax,--gc-sections

clean:
rm -rf *.o $(PRG).lst $(PRG).map $(PRG).elf $(PRG).hex $(PRG).bin $(LDSCRIPT_DST)
LDSCRIPT := $(shell LANG=C $(CC) $(CFLAGS) -Wl,--verbose 2> /dev/null | awk '/^opened script file (.*)$$/{ print $$4 }')
LDSCRIPT_NOVECT := ldscript-no-vectors-$(notdir $(LDSCRIPT))

# ---------------------------------------------------------------------------

lst: $(PRG).lst
$(TARGET): $(TARGET).elf
@$(SIZE) -B -x --mcu=$(MCU) $<

%.lst: %.elf
$(OBJDUMP) -h -S $< > $@
$(TARGET).elf: $(SOURCE:.c=.o) | $(LDSCRIPT_NOVECT)
@echo " Linking file: $@"
@$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-T$(LDSCRIPT_NOVECT) -o $@ $^ 2> /dev/null
@$(OBJDUMP) -h -S $@ > $(@:.elf=.lss)
@$(OBJCOPY) -j .text -j .data -O ihex $@ $(@:.elf=.hex)
@$(OBJCOPY) -j .text -j .data -O binary $@ $(@:.elf=.bin)

text: hex bin
%.o: %.c $(MAKEFILE_LIST)
@echo " Building file: $<"
@$(CC) $(CFLAGS) -o $@ -c $<

hex: $(PRG).hex
bin: $(PRG).bin
# remove interrupt vector section from avr-libc linker script
# (remove all lines with *vectors* and insert DISCARD line above .text declaration)
$(LDSCRIPT_NOVECT): $(LDSCRIPT) $(MAKEFILE_LIST)
@echo " Creating: $@"
@sed -e '/.*vectors.*/d' -e 's/\(^[ \t]*\)\(.text[ \t]*\:\)$$/\1\/DISCARD\/ : { *(.vectors) }\n\1\2/g' $< > $@
# -@diff -uNr $< $@ > $@.diff

%.hex: %.elf
$(OBJCOPY) -j .text -j .data -O ihex $< $@
clean:
rm -rf $(SOURCE:.c=.o) $(SOURCE:.c=.lst) $(addprefix $(TARGET), .elf .map .lss .hex .bin) $(LDSCRIPT_NOVECT)

%.bin: %.elf
$(OBJCOPY) -j .text -j .data -O binary $< $@
install: $(TARGET).elf
avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) -U flash:w:$(<:.elf=.hex)

install: text
avrdude -c dragon_isp -P usb -p m644p -V -U flash:w:$(PRG).hex
fuses:
avrdude $(AVRDUDE_PROG) -p $(AVRDUDE_MCU) $(patsubst %,-U %, $(AVRDUDE_FUSES))

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