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########################################################################################################################
# Dependency directories
########################################################################################################################
CMSIS_DEVICE_DIR ?= lib/cmsis_device
CMSIS_CORE_DIR ?= lib/cmsis_core
HAL_DIR ?= lib/hal_driver
MUSL_DIR ?= lib/musl
########################################################################################################################
# Sources
########################################################################################################################
C_SOURCES := src/main.c
C_SOURCES += src/cobs.c
C_SOURCES += src/clocks.c
C_SOURCES += src/bootloader.c
C_SOURCES += src/interrupts.c
C_SOURCES += src/system_stm32f3xx.c
C_SOURCES += config/fe_config.c
MUSL_SOURCES += string/strlen.c
C_SOURCES += $(addprefix $(MUSL_DIR)/src/,$(MUSL_SOURCES))
CXX_SOURCES +=
BUILDDIR ?= build
BINARY := fenris_f302r8tx.elf
LDSCRIPT := stm32f302r8tx.ld
########################################################################################################################
# Build parameters
########################################################################################################################
PREFIX ?= arm-none-eabi-
DEBUG ?= 1
CC := $(PREFIX)gcc
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
CMSIS_DIR_ABS := $(abspath $(CMSIS_DIR))
ARCH_FLAGS ?= -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16
SYSTEM_FLAGS ?= -nostdlib -ffreestanding -nostartfiles
CFLAGS += -Iinclude -Iconfig
CFLAGS += -I$(BUILDDIR)
CFLAGS += -I$(CMSIS_DEVICE_DIR)/Include -I$(CMSIS_CORE_DIR)/Include
CFLAGS += -I$(abspath include/musl_include_shims)
CFLAGS += -Os -std=gnu11 -g -DSTM32F302x8 -DSTM32F3 -DDEBUG=$(DEBUG)
CFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
CFLAGS += -fno-common -ffunction-sections -fdata-sections
# for musl
CFLAGS += -Dhidden=
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_stm32f302x8.o --trace-sections .isr_vector --highlight-subdirs $(BUILDDIR)
OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o))
ALL_OBJS := $(OBJS)
ALL_OBJS += $(BUILDDIR)/startup_stm32f302x8.o
########################################################################################################################
# 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: ; mkdir -p $@
.PRECIOUS: $(BUILDDIR)/$(BINARY)
$(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=.map) &: $(ALL_OBJS)
$(LD) -T$(LDSCRIPT) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/$(BINARY:.elf=.map) $^ $(LIBS)
build/$(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)/%.o: %.s
mkdir -p $(@D)
$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
$(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 $<
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)/tools/freq_meas_test
mrproper: clean
rm -rf build
.PHONY: clean mrproper
-include $(OBJS:.o=.d)
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