From 7361a433d09358a339e4ea81d5da3f7dd7f1b1ca Mon Sep 17 00:00:00 2001
From: Thomas Jarosch <tomj@simonv.com>
Date: Mon, 12 Jan 2015 19:26:16 +0100
Subject: ARM unwinder for thumb: Fix broken SUB opcode

Detected while looking through the code.
Patch submitted upstream.

Change-Id: I7ebe7b5f5947cf3df1b054d545dba92829f21b99
---
 lib/unwarminder/unwarm_thumb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/unwarminder/unwarm_thumb.c b/lib/unwarminder/unwarm_thumb.c
index 027d951f33..b71d9732b1 100644
--- a/lib/unwarminder/unwarm_thumb.c
+++ b/lib/unwarminder/unwarm_thumb.c
@@ -244,7 +244,7 @@ UnwResult UnwStartThumb(UnwState * const state)
                 case 3: /* SUB */
                     UnwPrintd5("SUB r%d, #0x%d\t; r%d %s",
                                rd, offset8, rd, M_Origin2Str(state->regData[rd].o));
-                    state->regData[rd].v += offset8;
+                    state->regData[rd].v -= offset8;
                     state->regData[rd].o |= REG_VAL_ARITHMETIC;
                     break;
             }
-- 
cgit v1.2.3