Halt-And-Catch-Fire macro

src/kernel/include/debug.h

@@ -22,3 +22,17 @@ void debug_printf(char *fmt, ...);
 void debug_puts(char *s);
 void debug_putsn(char *s, size_t n);
 void debug_putch(char c);
+
+#define S(x) #x
+#define S_(x) S(x)
+#define S__LINE__ S_(__LINE__)
+#define PANIC(...) \
+  do{ \
+    debug("\n\nKernel panic!\n%s:%d\n", __FILE__, __LINE__); \
+    debug(__VA_ARGS__); \
+    volatile int _override = 0; \
+    while(1){ \
+      asm("panic_breakpoint_" S__LINE__ ":"); \
+      if(_override) break; \
+    } \
+  }while(0)