Fix warnings in autogenerated file system_stm32f4xx.c

stm-firmware/Makefile

@@ -54,7 +54,7 @@ LFLAGS += -Tstm32f407vet6_flash.ld -Wl,-Map=$(mapfile).map
 
 CFLAGS = -c -fmessage-length=0 -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
 CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16 -nostartfiles -O0 -g
-
+CFLAGS += -Wall -Wextra -Wold-style-declaration -Wuninitialized -Wmaybe-uninitialized -Wunused-parameter
 ####################################################################################
 
 OBJ = $(CFILES:%.c=$(OBJDIR)/%.c.o)

stm-firmware/setup/system_stm32f4xx.c

@@ -399,7 +399,7 @@ static void SetSysClock(void)
     RCC->CFGR |= RCC_CFGR_SW_PLL;
 
     /* Wait till the main PLL is used as system clock source */
-    while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL);
+    while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS ) != RCC_CFGR_SWS_PLL)
     {
     }
   }

stm-firmware/shell.c

@@ -121,6 +121,7 @@ static shellmatta_retCode_t shell_cmd_clear_error_status(const shellmatta_handle
 {
 	(void)arguments;
 	(void)length;
+	(void)handle;
 
 	adc_pt1000_clear_error();
 
@@ -133,6 +134,7 @@ static shellmatta_retCode_t shell_cmd_uptime(const shellmatta_handle_t   handle,
 {
 	(void)arguments;
 	(void)length;
+
 	shellmatta_printf(handle, "Uptime: %llu secs", global_tick_ms/1000);
 	return SHELLMATTA_OK;
 }

stm-firmware/syscalls.c

@@ -1,6 +1,7 @@
 #include <stm-periph/uart.h>
 
-char* _sbrk(int incr) {
+char* _sbrk(int incr)
+{
 	extern char heap_low;    // Defined by the linker
 	extern char heap_top;
 	static char *heap_end;
@@ -9,6 +10,7 @@ char* _sbrk(int incr) {
 	if (heap_end == 0) {
 		heap_end = &heap_low;
 	}
+
 	prev_heap_end = heap_end;
 	if (heap_end + incr > &heap_top) {
 		return 0;
@@ -16,26 +18,47 @@ char* _sbrk(int incr) {
 
 	heap_end += incr;
 	return (char*) prev_heap_end;
-          }
-int _isatty(int fd) {
+}
+
+int _isatty(int fd)
+{
+	(void)fd;
+
 	return 1;
 }
-int _close(int fd) {
+
+int _close(int fd)
+{
+	(void)fd;
+
 	return 0;
 }
-int _open(int fd) {
+
+int _open(int fd)
+{
+	(void)fd;
+
 	return 0;
 }
-int _fstat(void) {
+
+int _fstat(void)
+{
 	return 0;
 }
-int _lseek(void) {
+
+int _lseek(void)
+{
 	return 0;
 }
-int _read(void) {
+
+int _read(void)
+{
 	return 0;
 }
-int _write(int fd, const void *buf, int count) {
+
+int _write(int fd, const void *buf, int count)
+{
+	if (fd == 1)
 		uart_send_array((char*)buf, count);
 	return count;
 }