710426024a
No functionality change is intended with this commit, it just consolidates the separate implementations of GC helper code to the lib/utils/ directory as a general set of helper functions useful for any port. This reduces duplication of code, and makes it easier for future ports or embedders to get the GC implementation correct. Ports should now link against gchelper_native.c and either gchelper_m0.s or gchelper_m3.s (currently only Cortex-M is supported but other architectures can follow), or use the fallback gchelper_generic.c which will work on x86/x64/ARM. The gc_helper_get_sp function from gchelper_m3.s is not really GC related and was only used by cc3200, so it has been moved to that port and renamed to cortex_m3_get_sp.
103 lines
2.8 KiB
Makefile
103 lines
2.8 KiB
Makefile
BOARD ?= ADAFRUIT_ITSYBITSY_M4_EXPRESS
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BOARD_DIR ?= boards/$(BOARD)
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BUILD ?= build-$(BOARD)
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CROSS_COMPILE ?= arm-none-eabi-
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UF2CONV ?= $(TOP)/tools/uf2conv.py
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ifeq ($(wildcard $(BOARD_DIR)/.),)
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$(error Invalid BOARD specified: $(BOARD_DIR))
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endif
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include ../../py/mkenv.mk
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include $(BOARD_DIR)/mpconfigboard.mk
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# Qstr definitions (must come before including py.mk)
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QSTR_DEFS = qstrdefsport.h
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QSTR_GLOBAL_DEPENDENCIES = $(BOARD_DIR)/mpconfigboard.h
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# Include py core make definitions
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include $(TOP)/py/py.mk
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GIT_SUBMODULES = lib/asf4 lib/tinyusb
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INC += -I.
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INC += -I$(TOP)
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INC += -I$(BUILD)
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INC += -I$(BOARD_DIR)
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INC += -I$(TOP)/lib/cmsis/inc
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INC += -I$(TOP)/lib/asf4/$(shell echo $(MCU_SERIES) | tr '[:upper:]' '[:lower:]')/include
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INC += -I$(TOP)/lib/tinyusb/src
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CFLAGS_MCU_SAMD21 = -mtune=cortex-m0plus -mcpu=cortex-m0plus -msoft-float
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CFLAGS_MCU_SAMD51 = -mtune=cortex-m4 -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard
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CFLAGS = $(INC) -Wall -Werror -std=c99 -nostdlib -mthumb $(CFLAGS_MCU_$(MCU_SERIES)) -fsingle-precision-constant -Wdouble-promotion
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CFLAGS += -DMCU_$(MCU_SERIES) -D__$(CMSIS_MCU)__
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LDFLAGS = -nostdlib $(addprefix -T,$(LD_FILES)) -Map=$@.map --cref
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LIBS = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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# Tune for Debugging or Optimization
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ifeq ($(DEBUG),1)
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CFLAGS += -O0 -ggdb
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else
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CFLAGS += -Os -DNDEBUG
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LDFLAGS += --gc-sections
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CFLAGS += -fdata-sections -ffunction-sections
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endif
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SRC_C = \
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main.c \
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modutime.c \
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modmachine.c \
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mphalport.c \
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samd_isr.c \
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samd_soc.c \
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tusb_port.c \
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lib/libc/string0.c \
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lib/libm/ef_sqrt.c \
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lib/libm/fmodf.c \
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lib/libm/math.c \
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lib/libm/nearbyintf.c \
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lib/mp-readline/readline.c \
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lib/tinyusb/src/class/cdc/cdc_device.c \
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lib/tinyusb/src/common/tusb_fifo.c \
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lib/tinyusb/src/device/usbd.c \
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lib/tinyusb/src/device/usbd_control.c \
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lib/tinyusb/src/portable/microchip/samd/dcd_samd.c \
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lib/tinyusb/src/tusb.c \
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lib/utils/gchelper_native.c \
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lib/utils/printf.c \
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lib/utils/pyexec.c \
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lib/utils/stdout_helpers.c \
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ifeq ($(MCU_SERIES),SAMD21)
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SRC_S = lib/utils/gchelper_m0.s
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else
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SRC_S = lib/utils/gchelper_m3.s
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endif
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# List of sources for qstr extraction
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SRC_QSTR += modutime.c modmachine.c
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OBJ += $(PY_O)
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OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
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# Workaround for bug in older gcc, warning on "static usbd_device_t _usbd_dev = { 0 };"
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$(BUILD)/lib/tinyusb/src/device/usbd.o: CFLAGS += -Wno-missing-braces
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all: $(BUILD)/firmware.uf2
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$(BUILD)/firmware.elf: $(OBJ)
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$(ECHO) "LINK $@"
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$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
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$(Q)$(SIZE) $@
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$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
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$(Q)$(OBJCOPY) -O binary -j .isr_vector -j .text -j .data $^ $(BUILD)/firmware.bin
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$(BUILD)/firmware.uf2: $(BUILD)/firmware.bin
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$(Q)$(PYTHON) $(UF2CONV) -b $(TEXT0) -c -o $@ $<
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include $(TOP)/py/mkrules.mk
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