kernel panic and trapping :)

src/kernel/panic.h

@@ -0,0 +1,16 @@
+#ifndef PANIC_H
+#define PANIC_H
+
+void kpanic(const char *reason);
+void kpanic_force();
+
+#define KASSERT(cond, msg) \
+    if (!(cond)) { \
+        kprint("ASSERTION FAILED: "); \
+        kprint(__FILE__); \
+        kprint(":"); \
+        /* Note: Printing line numbers requires a custom itoa/printf */ \
+        kpanic(msg); \
+    }
+
+#endif