debug: add debug_level_get()

2022/include/debug.h

@@ -25,6 +25,7 @@
 #ifdef DEBUG_DEBUG
 void debug_init(u32 level);
 void debug_level_set(u32 level);
+u32  debug_level_get(void);
 void _printf debug(u32 level, bool timestamp,
                    u32 indent, const char *src,
                    u32 line, const char *, ...);

2022/libsrc/debug.c

@@ -35,6 +35,11 @@ void debug_level_set(u32 level)
     log(1, "debug level set to %u\n", level);
 }
 
+u32 debug_level_get()
+{
+    return debug_level;
+}
+
 void debug_init(u32 level)
 {
     struct timespec timer;