Update STM32 build image

 * Update CubeL4 to 1.13.0
 * Rebuild OurTLS with `-DMBEDTLS_X509_CA_CHAIN_ON_DISK`
 * Add `-Wextra` and fix build issues

CL: Update STM32 build image

PUBLISHED_FROM=a7eacff7580bab6c6e40bdaf6164df575a717c55

mongoose.c

@@ -4999,6 +4999,8 @@ static void mg_ssl_mbed_log(void *ctx, int level, const char *file, int line,
   }
   /* mbedTLS passes strings with \n at the end, strip it. */
   LOG(cs_level, ("%p %.*s", ctx, (int) (strlen(str) - 1), str));
+  (void) ctx;
+  (void) str;
   (void) file;
   (void) line;
   (void) cs_level;
@@ -11964,7 +11966,9 @@ static void mg_resolve_async_eh(struct mg_connection *nc, int ev,
   void *user_data = nc->user_data;
 #endif
 
-  if (ev != MG_EV_POLL) DBG(("ev=%d user_data=%p", ev, user_data));
+  if (ev != MG_EV_POLL) {
+    DBG(("ev=%d user_data=%p", ev, user_data));
+  }
 
   req = (struct mg_resolve_async_request *) user_data;
 

src/common/platforms/arm/arm_exc.c

@@ -95,6 +95,7 @@ void arm_exc_handler_bottom(uint8_t isr_no, struct arm_exc_frame *ef,
                             struct arm_gdb_reg_file *rf) {
   char buf[8];
   const char *name;
+  (void) ef;
   portDISABLE_INTERRUPTS();
   switch (isr_no) {
     case 0:

src/mg_resolv.c

@@ -152,7 +152,9 @@ static void mg_resolve_async_eh(struct mg_connection *nc, int ev,
   void *user_data = nc->user_data;
 #endif
 
-  if (ev != MG_EV_POLL) DBG(("ev=%d user_data=%p", ev, user_data));
+  if (ev != MG_EV_POLL) {
+    DBG(("ev=%d user_data=%p", ev, user_data));
+  }
 
   req = (struct mg_resolve_async_request *) user_data;
 

src/mg_ssl_if_mbedtls.c

@@ -32,6 +32,8 @@ static void mg_ssl_mbed_log(void *ctx, int level, const char *file, int line,
   }
   /* mbedTLS passes strings with \n at the end, strip it. */
   LOG(cs_level, ("%p %.*s", ctx, (int) (strlen(str) - 1), str));
+  (void) ctx;
+  (void) str;
   (void) file;
   (void) line;
   (void) cs_level;