Changeset ebb3538 in mainline for kernel/arch/arm64/src/arm64.c

Timestamp:

2021-09-15T15:01:03Z (3 years ago)

Author:

Martin Decky <martin@…>

Branches:

master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

5ecac7e

Parents:

8ce56a6

Message:

Improve early kernel debugging prints

Since the early kernel debugging prints are useful only in a few
debugging scenarios, define a configuration option that disables them by
default (if enabled, it produces duplicate output which might be
confusing).

Implement early kernel debugging prints for the HiKey960.

File:

• kernel/arch/arm64/src/arm64.c (modified) (2 diffs)

kernel/arch/arm64/src/arm64.c

@@ -40 +40 @@
 #include <arch/exception.h>
 #include <arch/machine_func.h>
+#include <console/console.h>
 #include <interrupt.h>
 #include <proc/scheduler.h>
@@ -256 +257 @@
 }
 
+void early_putuchar(char32_t c)
+{
+#ifdef CONFIG_DEBUG_EARLY_PRINT
+        if (c == '\n')
+                machine_early_uart_output('\r');
+
+        machine_early_uart_output(c);
+#endif
+}
+
 /** @}
  */