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[134.134.139.74]) by smtp.gmail.com with ESMTPSA id 125sm45110583pfg.39.2018.12.26.06.54.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 26 Dec 2018 06:54:41 -0800 (PST) From: bill.c.roberts@gmail.com X-Google-Original-From: william.c.roberts@intel.com To: selinux@vger.kernel.org Cc: sds@tycho.nsa.gov, William Roberts Subject: [V2 PATCH 3/3] Makefile: add -Wstrict-overflow=5 to CFLAGS Date: Wed, 26 Dec 2018 06:54:28 -0800 Message-Id: <1545836068-7824-3-git-send-email-william.c.roberts@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1545836068-7824-1-git-send-email-william.c.roberts@intel.com> References: <1545836068-7824-1-git-send-email-william.c.roberts@intel.com> Sender: selinux-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: selinux@vger.kernel.org From: William Roberts Build with strict overflow checking enabled. If the compiler optimizes code that could be removed due to undefined signed overflow, then the compiler will issue a warning. Signed-off-by: William Roberts --- libselinux/src/Makefile | 3 ++- libselinux/utils/Makefile | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/libselinux/src/Makefile b/libselinux/src/Makefile index 1a9223c0027d..8891086e4af6 100644 --- a/libselinux/src/Makefile +++ b/libselinux/src/Makefile @@ -64,7 +64,8 @@ ifeq ($(COMPILER), gcc) EXTRA_CFLAGS = -fipa-pure-const -Wlogical-op -Wpacked-bitfield-compat -Wsync-nand \ -Wcoverage-mismatch -Wcpp -Wformat-contains-nul -Wnormalized=nfc -Wsuggest-attribute=const \ -Wsuggest-attribute=noreturn -Wsuggest-attribute=pure -Wtrampolines -Wjump-misses-init \ - -Wno-suggest-attribute=pure -Wno-suggest-attribute=const -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 + -Wno-suggest-attribute=pure -Wno-suggest-attribute=const -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 \ + -Wstrict-overflow=5 else EXTRA_CFLAGS = -Wunused-command-line-argument endif diff --git a/libselinux/utils/Makefile b/libselinux/utils/Makefile index e7a75121f049..361506384d08 100644 --- a/libselinux/utils/Makefile +++ b/libselinux/utils/Makefile @@ -33,7 +33,7 @@ CFLAGS ?= -O -Wall -W -Wundef -Wformat-y2k -Wformat-security -Winit-self -Wmissi -Wno-format-nonliteral -Wframe-larger-than=$(MAX_STACK_SIZE) -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 \ -fstack-protector-all --param=ssp-buffer-size=4 -fexceptions \ -fasynchronous-unwind-tables -fdiagnostics-show-option -funit-at-a-time \ - -Werror -Wno-aggregate-return -Wno-redundant-decls \ + -Werror -Wno-aggregate-return -Wno-redundant-decls -Wstrict-overflow=5 \ $(EXTRA_CFLAGS) LD_SONAME_FLAGS=-soname,$(LIBSO),-z,defs,-z,relro -- 2.7.4