From 216433af16cdc441ef2b3d5bb0510570a1403e1c Mon Sep 17 00:00:00 2001
From: Nicholas Piggin <npiggin@gmail.com>
Date: Wed, 25 Sep 2019 11:01:35 +1000
Subject: core/util: branch-to-NULL assert for ELFv2 ABI

The ELFv1 branch to NULL catcher puts a function descriptor at 0 which
points to a function that asserts. For ELFv2, put a trap at address 0.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[oliver: commit message prefix]
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
---
 asm/head.S | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'asm')

diff --git a/asm/head.S b/asm/head.S
index e78dc52..58f9aea 100644
--- a/asm/head.S
+++ b/asm/head.S
@@ -35,6 +35,8 @@
 	. = 0
 .global __head
 __head:
+	trap
+
 	/* This entry point is used when booting with a flat device-tree
 	 * pointer in r3
 	 */
-- 
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