CC=arm-none-eabi-gcc
OBJCOPY=arm-none-eabi-objcopy
-CFLAGS=-O2 -mlittle-endian -mthumb
-CFLAGS+=-mcpu=cortex-m3 -ffreestanding -nostdlib -nostdinc
+CFLAGS=-g -mlittle-endian -mthumb
+#CFLAGS=-g -O2 -mlittle-endian -mthumb
+ifeq ($(CONFIG_STM32L_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32L_DISCOVERY
+else ifeq ($(CONFIG_STM32VL_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m3 -DCONFIG_STM32VL_DISCOVERY=1
+else ifeq ($(CONFIG_STM32F4_DISCOVERY), 1)
+ CFLAGS+=-mcpu=cortex-m4 -DCONFIG_STM32F4_DISCOVERY=1
+endif
+CFLAGS+=-ffreestanding -nostdlib -nostdinc
# to run from SRAM
CFLAGS+=-Wl,-Ttext,0x20000000 -Wl,-e,0x20000000