From: John Linn <john.linn@xilinx.com>
Date: Fri, 6 Jan 2012 03:19:42 +0000 (-0800)
Subject: Xilinx: ARM: Stop GCC from generating unaligned accesses
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=51c77fd5cfa11f82faa1f4807ffca4716be48d45;p=thirdparty%2Fu-boot.git

Xilinx: ARM: Stop GCC from generating unaligned accesses

With the newer GNU tools, GCC 4.5.2 and newer, we're
seeing data aborts. This solution may not be the right
long term solution, but works for now. This causes GCC
not to generate unaligned data.
---

diff --git a/config.mk b/config.mk
index eb95093f464..01ee50c0639 100644
--- a/config.mk
+++ b/config.mk
@@ -189,6 +189,11 @@ else
 CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
 endif
 
+# Xilinx, added to prevent unaligned accesses which started happening
+# with GCC 4.5.2 tools
+
+CFLAGS += -mno-unaligned-access
+
 CFLAGS += $(call cc-option,-fno-stack-protector)
 
 # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>