From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 25 Apr 2011 08:06:40 +0000 (+0000)
Subject: disable security warning flags when possible
X-Git-Tag: v2011.09-rc1~168
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=6262e4e74e2cdb9f231dc71c9893d4a4bd1e88df;p=u-boot

disable security warning flags when possible

Some toolchains enable security warning flags by default, but these don't
really make sense in the u-boot world.  Such as forcing changes like:
	-printf(foo);
	+printf("%s", foo);

So disable the flags when the compiler supports them.  Linux has already
merged a similar change in their build system.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/config.mk b/config.mk
index ed44d03ad3..e2b440d8b2 100644
--- a/config.mk
+++ b/config.mk
@@ -211,6 +211,10 @@ CFLAGS := $(CPPFLAGS) -Wall -Wstrict-prototypes
 endif
 
 CFLAGS += $(call cc-option,-fno-stack-protector)
+# Some toolchains enable security related warning flags by default,
+# but they don't make much sense in the u-boot world, so disable them.
+CFLAGS += $(call cc-option,-Wno-format-nonliteral)
+CFLAGS += $(call cc-option,-Wno-format-security)
 
 # $(CPPFLAGS) sets -g, which causes gcc to pass a suitable -g<format>
 # option to the assembler.