3446d440f6
This drops the `.cpu` directive from the ARM gchelper_*.s files. Having this directive breaks the linker when targeting older CPUs (e.g. `-mthumb -mthumb-interwork` for `-mcpu=arm7tdmi`). The actual target CPU should be determined by the compiler options. The exact CPU doesn't actually matter, but rather the supported assembly instruction set. So the files are renamed to *_thumb1.s and *thumb2.s to indicate the instruction set support instead of the CPU support. Signed-off-by: David Lechner <david@pybricks.com>
153 lines
4.1 KiB
Makefile
153 lines
4.1 KiB
Makefile
include ../../py/mkenv.mk
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-include mpconfigport.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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# MicroPython feature configurations
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MICROPY_ROM_TEXT_COMPRESSION ?= 1
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# include py core make definitions
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include $(TOP)/py/py.mk
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include $(TOP)/extmod/extmod.mk
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BOARD ?= mps2-an385
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ifeq ($(BOARD),netduino2)
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CFLAGS += -mthumb -mcpu=cortex-m3 -mfloat-abi=soft
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CFLAGS += -DQEMU_SOC_STM32
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LDSCRIPT = stm32.ld
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SRC_BOARD_O = shared/runtime/gchelper_native.o shared/runtime/gchelper_thumb2.o
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MPY_CROSS_FLAGS += -march=armv7m
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endif
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ifeq ($(BOARD),microbit)
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CFLAGS += -mthumb -mcpu=cortex-m0 -mfloat-abi=soft
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CFLAGS += -DQEMU_SOC_NRF51
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LDSCRIPT = nrf51.ld
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QEMU_EXTRA = -global nrf51-soc.flash-size=1048576 -global nrf51-soc.sram-size=262144
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SRC_BOARD_O = shared/runtime/gchelper_native.o shared/runtime/gchelper_thumb1.o
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MPY_CROSS_FLAGS += -march=armv7m
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endif
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ifeq ($(BOARD),mps2-an385)
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CFLAGS += -mthumb -mcpu=cortex-m3 -mfloat-abi=soft
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CFLAGS += -DQEMU_SOC_MPS2
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LDSCRIPT = mps2.ld
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SRC_BOARD_O = shared/runtime/gchelper_native.o shared/runtime/gchelper_thumb2.o
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MPY_CROSS_FLAGS += -march=armv7m
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endif
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ifeq ($(BOARD),sabrelite)
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CFLAGS += -mcpu=cortex-a9
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CFLAGS += -DQEMU_SOC_IMX6
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LDSCRIPT = imx6.ld
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QEMU_EXTRA = -m 128M
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SRC_BOARD_O = shared/runtime/gchelper_generic.o
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# It's really armv7a but closest supported value is armv6.
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MPY_CROSS_FLAGS += -march=armv6
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endif
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CROSS_COMPILE ?= arm-none-eabi-
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INC += -I.
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INC += -I$(TOP)
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INC += -I$(BUILD)
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CFLAGS += $(INC) -Wall -Wpointer-arith -Wdouble-promotion -Wfloat-conversion -Werror -std=gnu99 $(COPT) \
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-ffunction-sections -fdata-sections
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CFLAGS += $(CFLAGS_EXTRA)
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# Debugging/Optimization
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ifeq ($(DEBUG), 1)
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CFLAGS += -g
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COPT = -O0
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else
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COPT += -Os -DNDEBUG
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endif
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## With CoudeSourcery it's actually a little different, you just need `-T generic-m-hosted.ld`.
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## Although for some reason `$(LD)` will not find that linker script, it works with `$(CC)`.
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## It turns out that this is specific to CoudeSourcery, and ARM version of GCC ships something
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## else instead and according to the following files, this is what we need to pass to `$(CC).
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## - gcc-arm-none-eabi-4_8-2014q1/share/gcc-arm-none-eabi/samples/src/makefile.conf
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## - gcc-arm-none-eabi-4_8-2014q1/share/gcc-arm-none-eabi/samples/src/qemu/Makefile
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LDFLAGS= -T $(LDSCRIPT) --gc-sections -Map=$(@:.elf=.map)
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LIBS = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
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SRC_COMMON_C = \
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startup.c \
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uart.c \
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modmachine.c \
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shared/libc/string0.c \
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shared/runtime/sys_stdio_mphal.c \
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SRC_RUN_C = \
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main.c \
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SRC_TEST_C = \
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test_main.c \
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lib/tinytest/tinytest.c \
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LIB_SRC_C += $(addprefix lib/,\
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libm/math.c \
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libm/fmodf.c \
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libm/nearbyintf.c \
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libm/ef_sqrt.c \
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libm/kf_rem_pio2.c \
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libm/kf_sin.c \
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libm/kf_cos.c \
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libm/kf_tan.c \
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libm/ef_rem_pio2.c \
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libm/sf_sin.c \
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libm/sf_cos.c \
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libm/sf_tan.c \
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libm/sf_frexp.c \
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libm/sf_modf.c \
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libm/sf_ldexp.c \
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libm/asinfacosf.c \
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libm/atanf.c \
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libm/atan2f.c \
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libm/roundf.c \
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)
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OBJ_COMMON =
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OBJ_COMMON += $(PY_O)
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OBJ_COMMON += $(addprefix $(BUILD)/, $(SRC_COMMON_C:.c=.o))
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OBJ_COMMON += $(addprefix $(BUILD)/, $(SRC_BOARD_O))
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OBJ_COMMON += $(addprefix $(BUILD)/, $(LIB_SRC_C:.c=.o))
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OBJ_RUN =
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OBJ_RUN += $(addprefix $(BUILD)/, $(SRC_RUN_C:.c=.o))
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ALL_OBJ_RUN = $(OBJ_COMMON) $(OBJ_RUN)
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OBJ_TEST =
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OBJ_TEST += $(addprefix $(BUILD)/, $(SRC_TEST_C:.c=.o))
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ALL_OBJ_TEST = $(OBJ_COMMON) $(OBJ_TEST)
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# All object files, needed to get dependencies correct
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OBJ = $(OBJ_COMMON) $(OBJ_RUN) $(OBJ_TEST)
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# List of sources for qstr extraction
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SRC_QSTR += $(SRC_COMMON_C) $(SRC_RUN_C) $(LIB_SRC_C)
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ifneq ($(FROZEN_MANIFEST),)
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CFLAGS += -DMICROPY_MODULE_FROZEN_STR
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CFLAGS += -DMICROPY_MODULE_FROZEN_MPY
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CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool
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endif
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all: run
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run: $(BUILD)/firmware.elf
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qemu-system-arm -machine $(BOARD) $(QEMU_EXTRA) -nographic -monitor null -semihosting -kernel $<
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## `$(LD)` doesn't seem to like `--specs` for some reason, but we can just use `$(CC)` here.
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$(BUILD)/firmware.elf: $(LDSCRIPT) $(ALL_OBJ_RUN)
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$(Q)$(LD) $(LDFLAGS) -o $@ $(ALL_OBJ_RUN) $(LIBS)
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$(Q)$(SIZE) $@
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include $(TOP)/py/mkrules.mk
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