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########################################################################################################################
# Dependency directories
########################################################################################################################
CMSIS_CORE_DIR ?= upstream/cmsis-core
CMSIS_DEVICE_DIR ?= upstream/cmsis-device-f3
MUSL_DIR ?= upstream/musl
TINYPRINTF_DIR ?= upstream/tinyprintf
SQUARE_DIR ?= upstream/stm32square
########################################################################################################################
# Algorithm parameters
########################################################################################################################
# - none -
########################################################################################################################
# High-level build parameters
########################################################################################################################
DEBUG ?= 1
OPT ?= 0
BUILDDIR ?= build
BINARY := rotohsm_proto_rotor.elf
LDSCRIPT := generic_stm32.ld
DEVICE := STM32F302CB
########################################################################################################################
# Sources
########################################################################################################################
STARTUP_FILE := $(CMSIS_DEVICE_DIR)/Source/Templates/gcc/startup_stm32f302xc.s
ASM_SOURCES := $(STARTUP_FILE)
C_SOURCES := src/main.c
C_SOURCES += src/microcobs.c
C_SOURCES += src/crc32.c
C_SOURCES += upstream/tinyprintf/tinyprintf.c
CPP_SOURCES := # - none -
MUSL_SOURCES := # - none -
MUSL_SOURCES := $(addprefix $(MUSL_DIR)/src/,$(MUSL_SOURCES))
C_SOURCES += $(MUSL_SOURCES)
########################################################################################################################
# Low-level build parameters
########################################################################################################################
PREFIX ?= arm-none-eabi-
HOSTCC := gcc
CC := $(PREFIX)gcc
CPP := $(PREFIX)cpp
CXX := $(PREFIX)g++
LD := $(PREFIX)gcc
AR := $(PREFIX)ar
AS := $(PREFIX)as
SIZE := $(PREFIX)size
NM := $(PREFIX)nm
OBJCOPY := $(PREFIX)objcopy
OBJDUMP := $(PREFIX)objdump
GDB := $(PREFIX)gdb
HOST_CC ?= $(HOST_PREFIX)gcc
HOST_CXX ?= $(HOST_PREFIX)g++
HOST_LD ?= $(HOST_PREFIX)gcc
HOST_AR ?= $(HOST_PREFIX)ar
HOST_AS ?= $(HOST_PREFIX)as
HOST_OBJCOPY ?= $(HOST_PREFIX)objcopy
HOST_OBJDUMP ?= $(HOST_PREFIX)objdump
PYTHON3 ?= python3
DOT ?= dot
MUSL_DIR_ABS := $(abspath $(MUSL_DIR))
CMSIS_CORE_DIR_ABS := $(abspath $(CMSIS_CORE_DIR))
CMSIS_DEVICE_DIR_ABS := $(abspath $(CMSIS_DEVICE_DIR))
DEVICE_FAMILY := $(shell echo $(DEVICE) | egrep -io 'STM32[a-z]{1,2}[0-9]'|cut -c 6-)
DEVICE_DEFINES := -DSTM32$(DEVICE_FAMILY) $(addprefix -D,$(shell cat $(SQUARE_DIR)/buildinfo/$(DEVICE_FAMILY)/$(DEVICE).defines))
FAMILY_HEADER := $(shell ls $(CMSIS_DEVICE_DIR)/Include | grep -i '^STM32$(DEVICE_FAMILY)xx.h')
ARCH_FLAGS ?= -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16
SYSTEM_FLAGS ?= -nostdlib -ffreestanding -nostartfiles
COMMON_CFLAGS += -I$(abspath include)
COMMON_CFLAGS += -I$(CMSIS_CORE_DIR_ABS)/Include
COMMON_CFLAGS += -I$(BUILDDIR)
CFLAGS += -I$(abspath tools/musl_include_shims)
CFLAGS += -I$(abspath $(TINYPRINTF_DIR))
CFLAGS += -I$(CMSIS_DEVICE_DIR_ABS)/Include
CFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
CFLAGS += -fno-common -ffunction-sections -fdata-sections
COMMON_CFLAGS += -O$(OPT) -std=gnu11 -g
COMMON_CFLAGS += $(DEVICE_DEFINES)
COMMON_CFLAGS += -DDEBUG=$(DEBUG)
HOST_CFLAGS += $(COMMON_CFLAGS)
# for musl
CFLAGS += -Dhidden=
SIM_CFLAGS += -lm -DSIMULATION
SIM_CFLAGS += -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
INT_CFLAGS += -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
INT_CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CXXFLAGS += -Os -g
CXXFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
CXXFLAGS += -Wall -Wextra -Wshadow -Wundef -Wredundant-decls
CXXFLAGS += -I.
LDFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
LIBS += -lgcc
LDFLAGS += -Wl,--gc-sections
LINKMEM_FLAGS ?= --trim-stubs=startup.o --trace-sections .isr_vector --highlight-subdirs $(BUILDDIR)
OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o) $(ASM_SOURCES:.s=.o))
ALL_OBJS := $(OBJS)
ALL_OBJS += $(BUILDDIR)/generated/stm32_system_patched.o
# Add generated source here.
########################################################################################################################
# Rules
########################################################################################################################
all: binsize
.PHONY: binsize
binsize: $(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
$(LD) -T$(LDSCRIPT) $(LDFLAGS) -Wl,--print-memory-usage -o /dev/null $(ALL_OBJS) $(LIBS)
@echo
@echo "▐▬▬▬▌ SyMbOL sIzE HiGhScORe LiSt ▐▬▬▬▌"
$(NM) --print-size --size-sort --radix=d $< | tail -n 20
$(BUILDDIR)/generated/mem_defs.ldi: $(SQUARE_DIR)/ld_memmap/$(DEVICE_FAMILY)/$(DEVICE).ldi | $(BUILDDIR)/generated
ln -sfr $< $@
$(BUILDDIR)/generated/stm32_device.h: $(CMSIS_DEVICE_DIR_ABS)/Include/$(FAMILY_HEADER) | $(BUILDDIR)/generated
ln -sfr $< $@
$(BUILDDIR)/generated/stm32_system_patched.c: $(wildcard $(CMSIS_DEVICE_DIR_ABS)/Source/Templates/system_stm32*.c) | $(BUILDDIR)/generated
$(PYTHON3) tools/patch_system_init.py $< > $@
$(BUILDDIR)/generated/stm32_irqs.h: $(STARTUP_FILE) | $(BUILDDIR)/generated
$(PYTHON3) tools/gen_isr_header.py --generate-include-guards --use-cpp $(CPP) $< > $@
$(BUILDDIR)/generated: ; mkdir -p $@
.PRECIOUS: $(BUILDDIR)/$(BINARY)
$(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=.map) &: $(ALL_OBJS) $(LDSCRIPT) $(BUILDDIR)/generated/mem_defs.ldi
$(LD) -T$(LDSCRIPT) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/$(BINARY:.elf=.map) $(ALL_OBJS) $(LIBS)
build/$(BINARY:.elf=-symbol-sizes.dot): $(ALL_OBJS)
$(PYTHON3) tools/linkmem.py $(LINKMEM_FLAGS) $(LD) -T$(LDSCRIPT) $(LDFLAGS) $^ $(LIBS) > $@
%.pdf: %.dot
$(DOT) -T pdf $< -o $@
%.dot: %.elf
r2 -a arm -qc 'aa;agRd' $< 2>/dev/null >$@
$(BUILDDIR)/src/%.o: src/%.s
mkdir -p $(@D)
$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
$(BUILDDIR)/src/%.o: src/%.c $(BUILDDIR)/generated/stm32_irqs.h $(BUILDDIR)/generated/stm32_device.h
mkdir -p $(@D)
$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
$(BUILDDIR)/src/%.o: src/%.cpp $(BUILDDIR)/generated/stm32_irqs.h $(BUILDDIR)/generated/stm32_device.h
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 $<
$(BUILDDIR)/%.o: %.s
mkdir -p $(@D)
$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(EXT_CFLAGS) -o $@ -c $<
$(BUILDDIR)/crc32_test: src/crc32.c test/crc32_test.c
$(HOSTCC) $(HOST_CFLAGS) -o $@ -Isrc $^
$(BUILDDIR)/microcobs_test_sg: src/microcobs.c test/microcobs_test_sg.c
$(HOSTCC) $(HOST_CFLAGS) -o $@ -Isrc $^
$(BUILDDIR)/microcobs_test: src/microcobs.c test/microcobs_test.c
$(HOSTCC) $(HOST_CFLAGS) -o $@ -Isrc $^
$(BUILDDIR)/microcobs_decode_test: src/microcobs.c test/microcobs_decode_test.c
$(HOSTCC) $(HOST_CFLAGS) -o $@ -Isrc $^
.PHONY: run_tests
run_tests: $(BUILDDIR)/crc32_test $(BUILDDIR)/microcobs_test_sg $(BUILDDIR)/microcobs_test $(BUILDDIR)/microcobs_decode_test
$(PYTHON3) -m unittest test.crc32_ref
$(PYTHON3) -m unittest test.microcobs
venv:
test -d venv || python3 -m venv --system-site-packages venv
source venv/bin/activate && pip install cxxfilt pyelftools libarchive matplotlib
clean:
rm -rf $(BUILDDIR)/src
rm -rf $(BUILDDIR)/generated
rm -f $(BUILDDIR)/$(BINARY)
rm -f $(BUILDDIR)/$(BINARY:.elf=.map)
rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.dot)
rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
rm -f $(BUILDDIR)/crc32_test
rm -f $(BUILDDIR)/microcobs_test_sg
rm -f $(BUILDDIR)/microcobs_test
rm -f $(BUILDDIR)/microcobs_decode_test
mrproper: clean
rm -rf build
.PHONY: clean mrproper
-include $(OBJS:.o=.d)
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