diff options
| -rw-r--r-- | stmhal/Makefile | 6 | ||||
| -rw-r--r-- | stmhal/uart.c | 2 |
2 files changed, 5 insertions, 3 deletions
diff --git a/stmhal/Makefile b/stmhal/Makefile index 1e8af39876..8ee3f458f2 100644 --- a/stmhal/Makefile +++ b/stmhal/Makefile @@ -58,14 +58,16 @@ CFLAGS += -DSTM32_HAL_H='<stm32$(MCU_SERIES)xx_hal.h>' LDFLAGS = -nostdlib -T $(LD_FILE) -Map=$(@:.elf=.map) --cref LIBS = +# Remove uncalled code from the final image. +CFLAGS += -fdata-sections -ffunction-sections +LDFLAGS += --gc-sections + # Debugging/Optimization ifeq ($(DEBUG), 1) CFLAGS += -g -DPENDSV_DEBUG COPT = -O0 else -CFLAGS += -fdata-sections -ffunction-sections COPT += -Os -DNDEBUG -LDFLAGS += --gc-sections endif # uncomment this if you want libgcc diff --git a/stmhal/uart.c b/stmhal/uart.c index b353f5d9e3..3745451636 100644 --- a/stmhal/uart.c +++ b/stmhal/uart.c @@ -115,7 +115,7 @@ void uart_deinit(void) { STATIC bool uart_init2(pyb_uart_obj_t *uart_obj) { USART_TypeDef *UARTx; IRQn_Type irqn; - uint32_t GPIO_Pin, GPIO_Pin2; + uint32_t GPIO_Pin, GPIO_Pin2 = 0; uint8_t GPIO_AF_UARTx = 0; GPIO_TypeDef* GPIO_Port = NULL; GPIO_TypeDef* GPIO_Port2 = NULL; |