1 files changed, 42 insertions, 0 deletions
diff --git a/src/panic.c b/src/panic.c
new file mode 100644
index 0000000..d47330a
--- /dev/null
+++ b/src/panic.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2017 Richard Braun.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+
+#include "cpu.h"
+#include "panic.h"
+#include "thread.h"
+
+void
+panic(const char *format, ...)
+{
+    va_list ap;
+
+    thread_preempt_disable();
+    cpu_intr_disable();
+    printf("\npanic: ");
+    va_start(ap, format);
+    vprintf(format, ap);
+    printf("\n");
+    cpu_halt();
+}