Code reorganization

Makefile

@@ -3,19 +3,12 @@ TARGET = firmware
 DEBUG = 1
 OPT = -O0
 
-BUILD_DIR = _build
+BUILD_DIR = build
 
-CC_SOURCES = \
-Core/main.cc \
-platform/stm32g0xx/Gpio.cc \
-platform/stm32g0xx/Uart.cc \
-platform/stm32g0xx/IndependentWatchdog.cc \
-platform/stm32g0xx/low_level_interrupt.cc
-
-C_SOURCES = \
-platform/stm32g0xx/system_stm32g0xx.c \
-platform/stm32g0xx/syscalls.c \
-platform/stm32g0xx/sysmem.c \
+SRC_DIRS := $(shell find src -type d)
+CC_SOURCES = $(foreach folder, $(SRC_DIRS), $(wildcard $(folder)/*.cc))
+C_SOURCES = $(foreach folder, $(SRC_DIRS), $(wildcard $(folder)/*.c))
+ASM_SOURCES = $(foreach folder, $(SRC_DIRS), $(wildcard $(folder)/*.s))
 
 PREFIX = arm-none-eabi-
 CC = $(PREFIX)gcc
@@ -30,31 +23,11 @@ BIN = $(CP) -O binary -S
 CPU = -mcpu=cortex-m0plus
 MCU = $(CPU) -mthumb $(FPU) $(FLOAT-ABI)
 
-ifeq "$(SOC)" "stm32g071"
-
-C_DEFS = -DSTM32G071xx
-LDSCRIPT = platform/stm32g0xx/STM32G071RBTX_FLASH.ld
-ASM_SOURCES = platform/stm32g0xx/startup_stm32g071rbtx.s
-
-else
-ifeq "$(SOC)" "stm32g031"
-
 C_DEFS = -DSTM32G031xx
-LDSCRIPT = platform/stm32g0xx/STM32G031Y8YX_FLASH.ld
-ASM_SOURCES = platform/stm32g0xx/startup_stm32g031y8yx.s
-
-endif
-endif
-
-C_INCLUDES = \
--I. \
--ICore \
--Iarch/CMSIS/Device/ST/STM32G0xx/Include \
--Iarch/CMSIS/Include \
--Iplatform/stm32g0xx
+LDSCRIPT = src/platform/stm32g0xx/STM32G031Y8YX_FLASH.ld
 
 ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
-CFLAGS = $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections
+CFLAGS = $(MCU) $(C_DEFS) $(addprefix -I,$(SRC_DIRS)) $(OPT) -Wall -fdata-sections -ffunction-sections
 
 ifeq ($(DEBUG), 1)
 CFLAGS += -ggdb3