Enable basic stack canary.
Change-Id: Iee065af935e9276133779a4bd24089be065a0588
diff --git a/src/abort.c b/src/abort.c
new file mode 100644
index 0000000..f16d2f7
--- /dev/null
+++ b/src/abort.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2019 The Hafnium Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "hf/abort.h"
+
+/**
+ * Causes execution to halt and prevent progress of the current and less
+ * privileged software components. This should be triggered when a
+ * non-recoverable event is identified which leaves the system in an
+ * inconsistent state.
+ *
+ * TODO: Should this also reset the system?
+ */
+noreturn void abort(void)
+{
+ /* TODO: Block all CPUs. */
+ for (;;) {
+ }
+}