OPENCM3_DIR ?= libopencm3 CMSIS_DIR ?= cmsis MSPDEBUG_DIR ?= mspdebug LIBSODIUM_DIR ?= libsodium TINYAES_DIR ?= tinyaes MUSL_DIR ?= musl C_SOURCES := src/main.c src/mspdebug_wrapper.c src/spi_flash.c src/freq_meas.c C_SOURCES += $(MSPDEBUG_DIR)/drivers/jtaglib.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_init_f32.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_rfft_fast_f32.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_init_f32.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_f32.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix8_f32.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/CommonTables/arm_const_structs.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/CommonTables/arm_common_tables.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_bitreversal.c CMSIS_SOURCES += $(CMSIS_DIR)/CMSIS/DSP/Source/TransformFunctions/arm_bitreversal2.c MUSL_SOURCES += $(MUSL_DIR)/src/math/tanhf.c $(MUSL_DIR)/src/math/atanhf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/expm1f.c $(MUSL_DIR)/src/math/log1pf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/expf.c $(MUSL_DIR)/src/math/exp2f_data.c MUSL_SOURCES += $(MUSL_DIR)/src/math/powf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/__math_oflowf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/__math_uflowf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/__math_xflowf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/__math_invalidf.c MUSL_SOURCES += $(MUSL_DIR)/src/math/powf_data.c C_SOURCES += $(CMSIS_SOURCES) $(MUSL_SOURCES) CXX_SOURCES += src/ldpc_wrapper.cpp BUILDDIR ?= build BINARY := safetyreset.elf LDSCRIPT := stm32f407.ld OPENCM3_LIB := opencm3_stm32f4 PREFIX ?= arm-none-eabi- GOLD_CODE_NBITS ?= 5 FMEAS_ADC_SAMPLING_RATE ?= 1000 FMEAS_ADC_MAX ?= 4096 FMEAS_FFT_LEN ?= 256 FMEAS_FFT_WINDOW ?= gaussian FMEAS_FFT_WINDOW_SIGMA ?= 8.0 CC := $(PREFIX)gcc CXX := $(PREFIX)g++ LD := $(PREFIX)gcc AR := $(PREFIX)ar AS := $(PREFIX)as OBJCOPY := $(PREFIX)objcopy OBJDUMP := $(PREFIX)objdump GDB := $(PREFIX)gdb PYTHON3 ?= python3 OPENCM3_DIR_ABS := $(abspath $(OPENCM3_DIR)) CMSIS_DIR_ABS := $(abspath $(CMSIS_DIR)) MSPDEBUG_DIR_ABS := $(abspath $(MSPDEBUG_DIR)) LIBSODIUM_DIR_ABS := $(abspath $(LIBSODIUM_DIR)) TINYAES_DIR_ABS := $(abspath $(TINYAES_DIR)) MUSL_DIR_ABS := $(abspath $(MUSL_DIR)) COMMON_CFLAGS += -I$(OPENCM3_DIR_ABS)/include -Imspdebug/util -Imspdebug/drivers COMMON_CFLAGS += -I$(CMSIS_DIR_ABS)/CMSIS/DSP/Include -I$(CMSIS_DIR_ABS)/CMSIS/Core/Include COMMON_CFLAGS += -I$(abspath musl_include_shims) -Ilevmarq COMMON_CFLAGS += -Os -std=gnu11 -g -DSTM32F4 CFLAGS += -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 SIM_CFLAGS += -mthumb -mcpu=cortex-m4 -mfloat-abi=soft # Note: libopencm3 requires some standard libc definitions from stdint.h and stdbool.h, so we don't pass -nostdinc here. COMMON_CFLAGS += -nostdlib -ffreestanding CFLAGS += -fno-common -ffunction-sections -fdata-sections COMMON_CFLAGS += -DGOLD_CODE_NBITS=$(GOLD_CODE_NBITS) -DFMEAS_FFT_LEN=$(FMEAS_FFT_LEN) -DFMEAS_ADC_MAX=$(FMEAS_ADC_MAX) COMMON_CFLAGS += -DFMEAS_ADC_SAMPLING_RATE=$(FMEAS_ADC_SAMPLING_RATE) COMMON_CFLAGS += -DFMEAS_FFT_WINDOW_SIGMA=$(FMEAS_FFT_WINDOW_SIGMA) # for musl CFLAGS += -Dhidden= SIM_CFLAGS += -Isrc INT_CFLAGS += -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef INT_CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes CXXFLAGS += -Os -g CXXFLAGS += -nostdlib -ffreestanding CXXFLAGS += -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 CXXFLAGS += -fno-common -ffunction-sections -fdata-sections CXXFLAGS += -Wall -Wextra -Wshadow -Wundef -Wredundant-decls CXXFLAGS += -I. COMMON_LDFLAGS += -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -g COMMON_LDFLAGS += --static -nostartfiles LDFLAGS += -Wl,--cre #LDFLAGS += -Wl,--gc-sections LDFLAGS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group LDFLAGS += -L$(OPENCM3_DIR_ABS)/lib -l$(OPENCM3_LIB) $(shell $(CC) -print-libgcc-file-name) all: $(BUILDDIR)/$(BINARY) tests: tools/freq_meas_test.elf OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o)) ALL_OBJS := $(OBJS) ALL_OBJS += $(OPENCM3_DIR)/lib/lib$(OPENCM3_LIB).a ALL_OBJS += $(BUILDDIR)/libsodium/src/libsodium/.libs/libsodium.a ALL_OBJS += $(BUILDDIR)/tinyaes/aes.o ALL_OBJS += $(BUILDDIR)/levmarq/levmarq.o ALL_OBJS += $(BUILDDIR)/generated/gold_code_$(GOLD_CODE_NBITS).o ALL_OBJS += $(BUILDDIR)/generated/fmeas_fft_window.o $(BUILDDIR)/$(BINARY): $(ALL_OBJS) $(LD) -T$(LDSCRIPT) $(COMMON_LDFLAGS) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/src/$*.map $^ tools/freq_meas_test.elf: tools/freq_meas_test.c src/freq_meas.c $(CMSIS_SOURCES) $(BUILDDIR)/musl/lib/libc.a $(CC) $(COMMON_CFLAGS) $(SIM_CFLAGS) -lm -lgcc -lnosys -o $@ $^ $(BUILDDIR)/src/%.o: src/%.c mkdir -p $(@D) $(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $< $(BUILDDIR)/src/%.o: src/%.cpp mkdir -p $(@D) $(CXX) $(CXXFLAGS) -o $@ -c $< $(BUILDDIR)/generated/%.o: $(BUILDDIR)/generated/%.c mkdir -p $(@D) $(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $< $(BUILDDIR)/%.o: %.c mkdir -p $(@D) $(CC) $(COMMON_CFLAGS) $(CFLAGS) $(EXT_CFLAGS) -o $@ -c $< $(OPENCM3_DIR)/lib/lib$(OPENCM3_LIB).a: $(MAKE) -C $(OPENCM3_DIR) -j $(shell nproc) $(BUILDDIR)/libsodium/src/libsodium/.libs/libsodium.a: mkdir -p $(BUILDDIR)/libsodium cd $(BUILDDIR)/libsodium && CFLAGS="$(COMMON_CFLAGS) $(CFLAGS) -DDEV_MODE=1" $(LIBSODIUM_DIR_ABS)/configure --host=arm-none-eabi && $(MAKE) -j $(shell nproc) $(BUILDDIR)/tinyaes/aes.o: mkdir -p $(@D) make -C $(@D) -f $(TINYAES_DIR_ABS)/Makefile VPATH=$(TINYAES_DIR_ABS) CFLAGS="$(COMMON_CFLAGS) $(CFLAGS) -c" CC=$(CC) LD=$(LD) AR=$(AR) aes.o $(BUILDDIR)/generated/gold_code_%.c: mkdir -p $(@D) $(PYTHON3) tools/gold_code_header_gen.py $* > $@ $(BUILDDIR)/generated/fmeas_fft_window.c: mkdir -p $(@D) $(PYTHON3) tools/fft_window_header_gen.py -v fmeas_fft_window_table $(FMEAS_FFT_WINDOW) $(FMEAS_FFT_LEN) $(FMEAS_FFT_WINDOW_SIGMA) > $@ $(BUILDDIR)/musl/lib/libc.a: mkdir -p $(BUILDDIR)/musl cd $(BUILDDIR)/musl && CFLAGS="$(SIM_CFLAGS) $(COMMON_CFLAGS)" CC=$(CC) LD=$(LD) AR=$(AR) $(MUSL_DIR_ABS)/configure && $(MAKE) TARGET=arm-linux-musleabihf GCC_CONFIG="-mcpu=cortex-m4 -mfloat-abi=soft" -j $(shell nproc) build/ldpc_decoder_test.so: src/ldpc_decoder.c gcc -fPIC -shared -Wall -Wextra -Wpedantic -std=gnu11 -O0 -g -o $@ $^ clean: -rm -r $(BUILDDIR)/src -rm -r $(BUILDDIR)/generated -rm $(BUILDDIR)/$(BINARY) mrproper: clean -rm -r build -$(MAKE) -C $(OPENCM3_DIR) clean .PHONY: clean mrproper -include $(OBJS:.o=.d)