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b45f9de809
This option affects py/vm.c and py/gc.c and using -Os gets them compiling a bit smaller, and small firmware is the aim of these two ports. Also, having these files compiled with -Os on these ports, and -O3 as the default on other ports, gives a better understanding of code-size changes when making changes to these files.
50 lines
1.0 KiB
Makefile
50 lines
1.0 KiB
Makefile
include ../../py/mkenv.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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# include py core make definitions
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include $(TOP)/py/py.mk
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CROSS_COMPILE = arm-none-eabi-
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INC += -I.
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INC += -I$(TOP)
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INC += -I$(BUILD)
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CFLAGS_CORTEX_M4 = -mthumb -mtune=cortex-m4 -mabi=aapcs-linux -mcpu=cortex-m4 -mfpu=fpv4-sp-d16 -mfloat-abi=hard -fsingle-precision-constant -Wdouble-promotion
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CFLAGS = $(INC) -Wall -Werror -std=c99 -nostdlib $(CFLAGS_CORTEX_M4) $(COPT)
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CSUPEROPT = -Os # save some code space
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#Debugging/Optimization
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ifeq ($(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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endif
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LDFLAGS = -nostdlib -T stm32f405.ld -Map=$@.map --cref
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LIBS =
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SRC_C = \
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main.c \
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# printf.c \
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string0.c \
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malloc0.c \
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gccollect.c \
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SRC_S = \
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# startup_stm32f40xx.s \
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gchelper.s \
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OBJ = $(PY_CORE_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))
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all: $(BUILD)/firmware.elf
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$(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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include $(TOP)/py/mkrules.mk
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