5fc0575e99
Historically $(OBJECTDIR) was created when Makefile.include is read. A consequence is that combining "clean" with "all" (or any other build target) results in an error because the clean removes the object directory that is required to exist when building dependencies. Creating $(OBJECTDIR) on-demand ensures it is present when needed. Removed creation of $(OBJECTDIR) on initial read, and added an order-only dependency forcing its creation all Makefile* rules where the target is explicitly or implicitly in $(OBJECTDIR).
202 lines
5 KiB
Makefile
202 lines
5 KiB
Makefile
# Adapted from Makefile.msp430
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# Default to AT91SAM7S64
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SUBTARGET = 64
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### Code common for all ARM CPUs
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CONTIKI_CPU_ARM=$(CONTIKI)/cpu/arm/
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CONTIKI_CPU_ARM_COMMON=$(CONTIKI_CPU_ARM)/common
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### Defin the CPU directory
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CONTIKI_CPU=$(CONTIKI_CPU_ARM)/at91sam7s
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### Define the source files we have in the AT91SAM7S port
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CONTIKI_CPU_DIRS = . ../common/dbg-io ../common/usb loader
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AT91SAM7S = clock.c debug-uart.c interrupt-utils.c newlib-syscalls.c sys-interrupt.c rtimer-arch.c rtimer-arch-interrupt.c uip-log.c
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SYSAPPS = codeprop-otf.c
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APPDIRS += $(CONTIKI)/cpu/at91sam7s/loader
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ELFLOADER = elfloader-otf.c elfloader-arm.c symtab.c cfs-ram.c
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include $(CONTIKI_CPU_ARM_COMMON)/usb/Makefile.usb
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USB += usb-interrupt.c
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include $(CONTIKI_CPU_ARM_COMMON)/SD-card/Makefile.sdcard
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TARGETLIBS = random.c dbg-printf.c dbg-puts.c dbg-putchar.c dbg-sprintf.c dbg-snprintf.c strformat.c
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CONTIKI_TARGET_SOURCEFILES += $(AT91SAM7S) $(SYSAPPS) $(ELFLOADER) \
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$(TARGETLIBS) $(UIPDRIVERS) $(USB)
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CONTIKI_SOURCEFILES += $(CONTIKI_TARGET_SOURCEFILES)
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THREADS =
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### Compiler definitions
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CC = arm-elf-gcc
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LD = arm-elf-ld
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AS = arm-elf-as
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AR = arm-elf-ar
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NM = arm-elf-nm
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OBJCOPY = arm-elf-objcopy
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STRIP = arm-elf-strip
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XSLTPROC=xsltproc
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PROJECT_OBJECTFILES += ${addprefix $(OBJECTDIR)/,$(CONTIKI_TARGET_MAIN:.c=.o)}
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LINKERSCRIPT = $(CONTIKI_CPU)/AT91SAM7S$(SUBTARGET)-ROM.ld
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STARTUP=${addprefix $(OBJECTDIR)/,startup-SAM7S-arm.o}
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# JTAG program upload
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OPENOCD = openocd
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OPENOCD_DIR = $(CONTIKI_CPU)/openocd/
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OPENOCD_CFG = arm7_wig.cfg
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OPENOCD_FLASH_CFG = arm7_wig_flash.cfg
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# USB program upload
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SAMIAM=Sam_I_Am
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SAMIAM_TTY=/dev/ttyACM0
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ARCH_FLAGS= -mcpu=arm7tdmi -mthumb-interwork
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THUMB_FLAGS=-mthumb
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ARM_FLAGS=
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CFLAGSNO = -I. -I$(CONTIKI)/core -I$(CONTIKI_CPU) -I$(CONTIKI_CPU)/loader \
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-I$(CONTIKI_CPU)/dbg-io \
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-I$(CONTIKI)/platform/$(TARGET) \
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${addprefix -I,$(APPDIRS)} \
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-DWITH_UIP -DWITH_ASCII -DMCK=$(MCK) \
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-Wall $(ARCH_FLAGS) -g -D SUBTARGET=$(SUBTARGET)
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CFLAGS += $(CFLAGSNO) -O -DRUN_AS_SYSTEM -DROM_RUN
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LDFLAGS += -L $(CONTIKI_CPU) -T $(LINKERSCRIPT) -nostartfiles
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CDEPFLAGS = $(CFLAGS) -D __MAKING_DEPS__
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### Setup directory search path for source files
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CUSTOM_RULE_C_TO_OBJECTDIR_O=yes
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CUSTOM_RULE_C_TO_O=yes
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%-interrupt.o: %-interrupt.c
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$(CC) $(CFLAGS) $(ARM_FLAGS) $< -c
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$(OBJECTDIR)/%-interrupt.o: %-interrupt.c | $(OBJECTDIR)
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$(CC) $(CFLAGS) $(ARM_FLAGS) -c $< -o $@
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%-arm.o: %-arm.c
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$(CC) $(CFLAGS) $(ARM_FLAGS) $< -c
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$(OBJECTDIR)/%-arm.o: %-arm.c | $(OBJECTDIR)
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$(CC) $(CFLAGS) $(ARM_FLAGS) -c $< -o $@
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$(OBJECTDIR)/interrupt-utils.o: interrupt-utils.c | $(OBJECTDIR)
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$(CC) $(CFLAGS) $(ARM_FLAGS) $< -c -o $@
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%.o: %.c
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$(CC) $(CFLAGS) $(THUMB_FLAGS) $< -c
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$(OBJECTDIR)/%.o: %.c | $(OBJECTDIR)
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$(CC) $(CFLAGS) $(THUMB_FLAGS) -c $< -o $@
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CUSTOM_RULE_S_TO_OBJECTDIR_O = yes
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%.o: %.S
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$(CC) $(CFLAGS) $(ARM_FLAGS) $< -c
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$(OBJECTDIR)/%.o: %.S | $(OBJECTDIR)
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$(CC) $(CFLAGS) $(ARM_FLAGS) $< -c -o $@
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CUSTOM_RULE_C_TO_CO=yes
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%.co: %.c
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$(CC) $(CFLAGS) $(THUMB_FLAGS) $< -c -o $@
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CUSTOM_RULE_C_TO_CE=yes
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%.ce: %.o
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$(LD) $(LDFLAGS) --relocatable -T $(CONTIKI_CPU)/merge-rodata.ld $< -o $@
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$(STRIP) -K _init -K _fini --strip-unneeded -g -x $@
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CUSTOM_RULE_LINK=yes
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%-stripped.o: %.c
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$(CC) $(CFLAGS) -c $< -o $@
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$(STRIP) --strip-unneeded -g -x $@
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%-stripped.o: %.o
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$(STRIP) --strip-unneeded -g -x -o $@ $<
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%.o: ${CONTIKI_TARGET}/loader/%.S
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$(AS) -o $(notdir $(<:.S=.o)) $<
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%-nosyms.$(TARGET): %.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a $(STARTUP) $(OBJECTDIR)/empty-symbols.o
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$(CC) $(LDFLAGS) $(CFLAGS) -nostartfiles -o $@ $(filter-out %.a,$^) $(filter %.a,$^) -lc $(filter %.a,$^)
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%.ihex: %.$(TARGET)
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$(OBJCOPY) $^ -O ihex $@
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%.bin: %.$(TARGET)
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$(OBJCOPY) -O binary $< $@
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.PHONY: symbols.c
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ifdef CORE
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%.$(TARGET): %.co $(PROJECT_OBJECTFILES) contiki-$(TARGET).a $(STARTUP) $(OBJECTDIR)/symbols.o
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$(CC) $(LDFLAGS) $(CFLAGS) -nostartfiles -o $@ $(filter-out %.a,$^) $(filter %.a,$^) -lc $(filter %.a,$^)
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symbols.c: $(CORE)
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$(NM) $< | awk -f $(CONTIKI_CPU)/builtins.awk -f ../../tools/mknmlist > symbols.c
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else
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%.$(TARGET): %-nosyms.$(TARGET)
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ln -sf $< $@
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endif
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empty-symbols.c:
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cp ${CONTIKI}/tools/empty-symbols.c symbols.c
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cp ${CONTIKI}/tools/empty-symbols.h symbols.h
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upload_ocd_%: %.bin
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# Clear lock bits
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$(OPENOCD) -s $(OPENOCD_DIR) -f $(OPENOCD_CFG) -c init -c "halt;mww 0xffffff64 0x5a000004;sleep 250;mww 0xffffff64 0x5a002004; sleep 250;flash probe 0;flash write_bank 0 $< 0x0;reset run;sleep 500;exit"
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upload_%: %.ihex
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# Clear lock bits
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$(SAMIAM) "open $(SAMIAM_TTY) , writew 0xffffff64 5a000004"
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$(SAMIAM) "open $(SAMIAM_TTY) , writew 0xffffff64 5a002004"
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$(SAMIAM) "open $(SAMIAM_TTY) , flash $< , go"
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ocd_reset:
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cd $(CONTIKI_CPU)/openocd;$(OPENOCD) -f $(OPENOCD_CFG) -c init -c reset -c exit
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# Don't use core/loader/elfloader.c, use elfloader-otf.c instead
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$(OBJECTDIR)/elfloader.o: | $(OBJECTDIR)
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echo -n >$@
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clean: clean_cpu
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.PHONY: clean_cpu
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clean_cpu:
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-rm -rf $(BUILTSRCDIR)
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.PRECIOUS: %-nosyms.$(TARGET)
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