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########################################################################################################################
# Dependency directories
########################################################################################################################
CMSIS_DEVICE_DIR ?= upstream/st-cmsis-f0
CMSIS_CORE_DIR ?= upstream/cmsis-core
HAL_DIR ?= upstream/st-hal-f0
ST_USBD_DIR ?= upstream/st-usb-device
MUSL_DIR ?= upstream/musl
########################################################################################################################
# Sources
########################################################################################################################
C_SOURCES := src/main.c \
src/stm32f0xx_it.c \
src/stm32f0xx_hal_msp.c \
src/usb_device.c \
src/usbd_conf.c \
src/usbd_desc.c \
src/usbd_hid.c \
src/system_stm32f0xx.c
C_SOURCES += $(MUSL_DIR)/src/string/memset.c \
$(MUSL_DIR)/src/string/memcpy.c
C_SOURCES += $(HAL_DIR)/Src/stm32f0xx_ll_usb.c \
$(HAL_DIR)/Src/stm32f0xx_hal_adc.c \
$(HAL_DIR)/Src/stm32f0xx_hal_adc_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_rcc.c \
$(HAL_DIR)/Src/stm32f0xx_hal_rcc_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal.c \
$(HAL_DIR)/Src/stm32f0xx_hal_i2c.c \
$(HAL_DIR)/Src/stm32f0xx_hal_i2c_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_gpio.c \
$(HAL_DIR)/Src/stm32f0xx_hal_dma.c \
$(HAL_DIR)/Src/stm32f0xx_hal_cortex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_pwr.c \
$(HAL_DIR)/Src/stm32f0xx_hal_pwr_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_flash.c \
$(HAL_DIR)/Src/stm32f0xx_hal_flash_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_exti.c \
$(HAL_DIR)/Src/stm32f0xx_hal_tim.c \
$(HAL_DIR)/Src/stm32f0xx_hal_tim_ex.c \
$(HAL_DIR)/Src/stm32f0xx_hal_pcd.c \
$(HAL_DIR)/Src/stm32f0xx_hal_pcd_ex.c
C_SOURCES += $(ST_USBD_DIR)/Core/Src/usbd_core.c \
$(ST_USBD_DIR)/Core/Src/usbd_ctlreq.c \
$(ST_USBD_DIR)/Core/Src/usbd_ioreq.c \
CXX_SOURCES +=
########################################################################################################################
# Build parameters
########################################################################################################################
BUILDDIR ?= build
BINARY := minikbd.elf
STARTUP_FILE := src/startup_stm32f072xb.s
LDSCRIPT := STM32F072CBUx_FLASH.ld
ARCH_FLAGS := -mthumb -mcpu=cortex-m0 -mfloat-abi=soft
SYSTEM_FLAGS += -nostdlib -ffreestanding -nostartfiles
CFLAGS := -O0 -g -std=gnu11
CFLAGS += -DUSE_HAL_DRIVER -DSTM32F072xB
CFLAGS += -DSTM32F0 -DDEBUG=$(DEBUG)
# ST weirdness
CFLAGS += -DUSBD_CLASS_BOS_ENABLED=0
CFLAGS += -fno-common -ffunction-sections -fdata-sections
CFLAGS += -I$(BUILDDIR) \
-Isrc \
-I$(CMSIS_DEVICE_DIR)/Include \
-I$(CMSIS_CORE_DIR) \
-I$(HAL_DIR)/Inc \
-I$(ST_USBD_DIR)/Core/Inc \
-I$(ST_USBD_DIR)/Class/HID/Inc \
-Imusl_include_shims
# for musl
CFLAGS += -Dhidden=
CFLAGS += -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
CFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
LDFLAGS += $(ARCH_FLAGS) $(SYSTEM_FLAGS)
LIBS += -lgcc
LDFLAGS += -Wl,--gc-sections
LINKMEM_FLAGS ?= --trim-stubs=$(STARTUP_FILE:.s=.o) --trace-sections .isr_vector --highlight-subdirs $(BUILDDIR)
OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o))
OBJS += $(BUILDDIR)/$(STARTUP_FILE:.s=.o)
########################################################################################################################
# Build tools
########################################################################################################################
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
########################################################################################################################
# Rules
########################################################################################################################
all: $(BUILDDIR)/$(BINARY:.elf=.bin)
.PHONY: binsize
binsize: $(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
@echo
@$(LD) -T$(LDSCRIPT) $(LDFLAGS) -Wl,--print-memory-usage -o /dev/null $(OBJS) $(LIBS)
@echo
@echo "▐▬▬▬▌ SyMbOL sIzE HiGhScORe LiSt ▐▬▬▬▌"
@echo
$(NM) --print-size --size-sort --radix=d $< | tail -n 20
$(BUILDDIR)/generated: ; mkdir -p $@
.PRECIOUS: $(BUILDDIR)/$(BINARY)
$(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=.map) &: $(OBJS)
$(LD) -T$(LDSCRIPT) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/$(BINARY:.elf=.map) $^ $(LIBS)
FORCE:
build/$(BINARY:.elf=-symbol-sizes.dot): $(OBJS) FORCE
@$(PYTHON3) tools/linkmem.py $(LINKMEM_FLAGS) $(LD) -T$(LDSCRIPT) $(LDFLAGS) $(OBJS) $(LIBS) > $@
%.pdf: %.dot
@$(DOT) -T pdf $< -o $@
%.dot: %.elf
r2 -a arm -qc 'aa;agRd' $< 2>/dev/null >$@
%.bin: %.elf
$(OBJCOPY) -O binary $^ $@
$(BUILDDIR)/src/%.o: src/%.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 $<
.PHONY: flash
flash: $(BUILDDIR)/$(BINARY:.elf=.bin)
dfu-util -a 0 -s 0x08000000 -D $^
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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