Add immediate log output for early kernel

src/kernel/log.cpp

@@ -16,29 +16,22 @@ static log::logger g_logger(log_buffer, sizeof(log_buffer));
 
 static const uint8_t level_colors[] = {0x07, 0x07, 0x0f, 0x0b, 0x09};
 
-void
-output_logs()
+static void
+output_log(log::area_t area, log::level severity, const char *message)
 {
-	uint8_t buffer[257];
-	auto *ent = reinterpret_cast<log::logger::entry *>(buffer);
 	auto *cons = console::get();
-
-	while (true) {
-		if(g_logger.get_entry(buffer, sizeof(buffer))) {
-			buffer[ent->bytes] = 0;
-			cons->set_color(level_colors[static_cast<int>(ent->severity)]);
-			cons->printf("%9s %8s: %s\n",
-					g_logger.area_name(ent->area),
-					g_logger.level_name(ent->severity),
-					ent->message);
-			cons->set_color();
-		}
-	}
+	cons->set_color(level_colors[static_cast<int>(severity)]);
+	cons->printf("%9s %8s: %s\n",
+			g_logger.area_name(area),
+			g_logger.level_name(severity),
+			message);
+	cons->set_color();
 }
 
 void init()
 {
 	new (&g_logger) log::logger(log_buffer, sizeof(log_buffer));
+	g_logger.set_immediate(output_log);
 
 #define LOG(name, lvl) \
 	g_logger.register_area(name, name ## _name, log::level ::lvl);

src/kernel/log.h

@@ -11,7 +11,6 @@ namespace logs {
 #undef LOG
 
 void init();
-void output_logs();
 
 } // namespace logs
 

src/kernel/main.cpp

@@ -138,5 +138,4 @@ kernel_main(kernel_args *header)
 	}
 
 	sched->start();
-	logs::output_logs();
 }