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build: Introduce PKG_CHECK_FORMAT_SECURITY

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The idea is to get rid of
http://en.wikipedia.org/wiki/Uncontrolled_format_string
by using "-Wformat -Werror=format-security" by default

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@free.fr>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41412 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Felix Fietkau 2014-06-30 08:19:52 +00:00
parent e59dd23a46
commit 82e2bf64dc
1 changed files with 4 additions and 0 deletions
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4
include/package.mk
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@ -14,6 +14,7 @@ PKG_INSTALL_DIR ?= $(PKG_BUILD_DIR)/ipkg-install
PKG_MD5SUM ?= unknown
PKG_BUILD_PARALLEL ?=
PKG_USE_MIPS16 ?= 1
PKG_CHECK_FORMAT_SECURITY ?= 1
ifneq ($(CONFIG_PKG_BUILD_USE_JOBSERVER),)
MAKE_J:=$(if $(MAKE_JOBSERVER),$(MAKE_JOBSERVER) -j)
@ -33,6 +34,9 @@ ifdef CONFIG_USE_MIPS16
TARGET_CFLAGS += -mips16 -minterlink-mips16
endif
endif
ifeq ($(strip $(PKG_CHECK_FORMAT_SECURITY)),1)
TARGET_CFLAGS += -Wformat -Werror=format-security
endif
include $(INCLUDE_DIR)/prereq.mk
include $(INCLUDE_DIR)/host.mk