build: Introduce PKG_CHECK_FORMAT_SECURITY

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>

SVN-Revision: 41412
This commit is contained in:
Felix Fietkau 2014-06-30 08:19:52 +00:00
parent b3b55de395
commit ff9595dbcf

View file

@ -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