From 1e87984a63faf4378f6f71c407f7e969441b944e Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Thu, 19 Dec 2013 14:24:34 -0800
Subject: Properly decode MODRM byte for 64-bit

64-bit mode doesn't use 16-bit address.  We should always check SIB byte
for address in 64-bit mode.

	PR gdb/16304
	* i386-tdep.c (i386_record_lea_modrm_addr): Don't use 16-bit
	address in 64-bit mode.
---
 gdb/i386-tdep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'gdb/i386-tdep.c')

diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index ff37851..8992088 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -4209,9 +4209,9 @@ i386_record_lea_modrm_addr (struct i386_record_s *irp, uint64_t *addr)
   ULONGEST offset64;
 
   *addr = 0;
-  if (irp->aflag)
+  if (irp->aflag || irp->regmap[X86_RECORD_R8_REGNUM])
     {
-      /* 32 bits */
+      /* 32/64 bits */
       int havesib = 0;
       uint8_t scale = 0;
       uint8_t byte;
-- 
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