From 3412d9ece9942129ce52512149b7156fc1bf97c4 Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sun, 17 Sep 2023 11:14:24 -0400
Subject: [PATCH] Add Klog.fatal_error()

---
 src/hulk/acpi.d |  2 +-
 src/hulk/klog.d | 14 ++++++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/hulk/acpi.d b/src/hulk/acpi.d
index 179417b..6d0846b 100644
--- a/src/hulk/acpi.d
+++ b/src/hulk/acpi.d
@@ -120,7 +120,7 @@ struct Acpi
         const(XSDT) * xsdt = cast(const(XSDT) *)acpi_xsdt_phys;
         if (xsdt.header.signature != XSDT_SIGNATURE)
         {
-            Klog.writef("XSDT signature invalid\n");
+            Klog.fatal_error("XSDT signature invalid");
             return;
         }
         /* Map the entire XSDT. */
diff --git a/src/hulk/klog.d b/src/hulk/klog.d
index 283f0b3..3153ab2 100644
--- a/src/hulk/klog.d
+++ b/src/hulk/klog.d
@@ -6,6 +6,7 @@ module hulk.klog;
 import core.stdc.stdarg;
 import hulk.console;
 static import hulk.writef;
+import hulk.cpu;
 
 struct Klog
 {
@@ -70,4 +71,17 @@ struct Klog
         writef("\n", args);
         va_end(args);
     }
+
+    /**
+     * Print a fatal kernel error and loop forever.
+     */
+    public static void fatal_error(T...)(T args)
+    {
+        writef("FATAL ERROR: ");
+        writefln(args);
+        cli();
+        for (;;)
+        {
+        }
+    }
 }