From 469f601e210a74bb08408be894c9ec84701d6715 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Wed, 17 Jan 2024 20:59:53 -0500
Subject: kernel: Add serial logging support

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/kern/kern_syslog.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'sys/kern')

diff --git a/sys/kern/kern_syslog.c b/sys/kern/kern_syslog.c
index ebc5512..84943b3 100644
--- a/sys/kern/kern_syslog.c
+++ b/sys/kern/kern_syslog.c
@@ -29,6 +29,7 @@
 
 #include <sys/syslog.h>
 #include <sys/tty.h>
+#include <sys/machdep.h>
 #include <string.h>
 
 static struct tty syslog_tty;
@@ -39,6 +40,15 @@ static bool is_conlog_init = false;
 static void
 syslog_write(const char *s, size_t len)
 {
+#if defined(__SERIAL_DEBUG)
+    size_t tmp_len = len;
+    const char *tmp_s = s;
+
+    while (tmp_len--) {
+        serial_dbgch(*tmp_s++);
+    }
+#endif  /* defined(__SERIAL_DEBUG) */
+
     if (is_conlog_init) {
         tty_write(&syslog_tty, s, len);
     }
-- 
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