Makefile FreeRTOS

PROJECT_NAME=square_wave_generation
PROJECT_PATH=$(HOME)/Projects/workspace/square_wave_generation
GCC_PATH = $(HOME)/bin/gcc-arm-none-eabi-4_9-2015q2/bin/
GCC = $(GCC_PATH)arm-none-eabi-gcc
STDLIB_INC = -I$(HOME)/bin/gcc-arm-none-eabi-4_9-2015q2/arm-none-eabi/include/ -I$(HOME)/bin/gcc-arm-none-eabi-4_9-2015q2/arm-none-eabi/include/sys

GCC_ARM_RTOS=$(PROJECT_PATH)/Middlewares/Third_Party/FreeRTOS/Source/portable/GCC/ARM_CM3
MEM_MANG=$(PROJECT_PATH)/Middlewares/Third_Party/FreeRTOS/Source/portable/MemMang
RTOS_SRC=$(PROJECT_PATH)/Middlewares/Third_Party/FreeRTOS/Source
RTOS_INC_=$(PROJECT_PATH)/Middlewares/Third_Party/FreeRTOS/Source/include
CMSIS_RTOS=$(PROJECT_PATH)/Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS
HAL_RTOS_SRC=$(PROJECT_PATH)/Drivers/STM32L1xx_HAL_Driver/Src
HAL_RTOS_INC=$(PROJECT_PATH)/Drivers/STM32L1xx_HAL_Driver/Inc
CMSIS_INC=$(PROJECT_PATH)/Drivers/CMSIS/Include
CMSIS_INC_LXX=$(PROJECT_PATH)/Drivers/CMSIS/Device/ST/STM32L1xx/Include

SOURCE = ./Src/*.c ./Src/*.s $(GCC_ARM_RTOS)/*.c $(MEM_MANG)/heap_*.c $(RTOS_SRC)/*.c $(CMSIS_RTOS)/cmsis_os.c $(HAL_RTOS_SRC)/*.c
HEADERS = -I./Inc/ -I$(GCC_ARM_RTOS) -I$(RTOS_INC_) -I$(CMSIS_RTOS) -I$(HAL_RTOS_INC) -I$(CMSIS_INC) -I$(CMSIS_INC_LXX)
CFLAGS =  -march=armv7-m -mthumb -g -Wall --specs=nosys.specs $(HEADERS) $(STDLIB_INC) -DSTM32L152xC



all:
    $(GCC) $(CFLAGS) $(SOURCE) -T STM32L152XC_FLASH.ld -o $(PROJECT_NAME).o

clean:
    rm -f *.o