From 566cf0b3bd6458a74e8a3df8c01d27f35e7814f2 Mon Sep 17 00:00:00 2001 From: Jeff King Date: Mon, 10 Jul 2017 09:24:50 -0400 Subject: [PATCH] Makefile: disable unaligned loads with UBSan The undefined behavior sanitizer complains about unaligned loads, even if they're OK for a particular platform in practice. It's possible that they _are_ a problem, of course, but since it's a known tradeoff the UBSan errors are just noise. Let's quiet it automatically by building with NO_UNALIGNED_LOADS when SANITIZE=undefined is in use. Signed-off-by: Jeff King Signed-off-by: Junio C Hamano --- Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Makefile b/Makefile index d03880e690..852dedc25c 100644 --- a/Makefile +++ b/Makefile @@ -994,6 +994,9 @@ endif ifdef SANITIZE BASIC_CFLAGS += -fsanitize=$(SANITIZE) -fno-sanitize-recover=$(SANITIZE) BASIC_CFLAGS += -fno-omit-frame-pointer +ifeq ($(SANITIZE),undefined) +BASIC_CFLAGS += -DNO_UNALIGNED_LOADS +endif endif ifndef sysconfdir -- 2.11.4.GIT