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disable security warning flags when possible

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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>
This commit is contained in:
Mike Frysinger
2011-04-25 08:06:40 +00:00
committed by Wolfgang Denk
parent e84ffddbce
commit 6262e4e74e
1 changed files with 4 additions and 0 deletions
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4
config.mk
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@@ -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.