kern: panic: Deprecate mu_panic_preamble()

This commit deprecates mu_panic_preamble() in favor of the
mu_spinlock_acq() function

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 4 insertions, 1 deletions

diff --git a/sys/kern/kern_panic.c b/sys/kern/kern_panic.c
index d6beccb..1ac9c64 100644
--- a/sys/kern/kern_panic.c
+++ b/sys/kern/kern_panic.c
@@ -30,10 +30,13 @@
 #include <kern/panic.h>
 #include <kern/serial.h>
 #include <mu/panic.h>
+#include <mu/spinlock.h>
 #include <lib/string.h>
 #include <lib/stdarg.h>
 #include <lib/stdbool.h>
 
+static volatile size_t __sync = 0;
+
 void
 panic(const char *fmt, ...)
 {
@@ -41,7 +44,7 @@ panic(const char *fmt, ...)
     static char buf[256];
     static va_list ap;
 
-    mu_panic_preamble();
+    mu_spinlock_acq(&__sync, SPINLOCK_INTTOG);
     va_start(ap, fmt);
 
     vsnprintf(buf, sizeof(buf), fmt, ap);