From 0beeb6760b166b21fc2d9cbe593100fb28e65e00 Mon Sep 17 00:00:00 2001 From: Quentin Young Date: Wed, 1 Jan 2020 21:05:02 -0500 Subject: [PATCH] configure.ac: add --enable-undefined-sanitizer For UBSan Signed-off-by: Quentin Young --- configure.ac | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/configure.ac b/configure.ac index 0bfcc833fa..a9784842e4 100755 --- a/configure.ac +++ b/configure.ac @@ -334,6 +334,13 @@ if test "$enable_memory_sanitizer" = "yes"; then SAN_FLAGS="-fsanitize=memory -fPIE -pie" ]) fi +if test "$enable_undefined_sanitizer" = "yes"; then + AC_C_FLAG([-fsanitize=undefined], [ + AC_MSG_ERROR([$CC does not support UndefinedBehaviorSanitizer.]) + ], [ + SAN_FLAGS="-fsanitize=undefined" + ]) +fi AC_SUBST([SAN_FLAGS]) dnl ---------- @@ -576,6 +583,8 @@ AC_ARG_ENABLE([thread-sanitizer], AS_HELP_STRING([--enable-thread-sanitizer], [enable ThreadSanitizer support for detecting data races])) AC_ARG_ENABLE([memory-sanitizer], AS_HELP_STRING([--enable-memory-sanitizer], [enable MemorySanitizer support for detecting uninitialized memory reads])) +AC_ARG_ENABLE([undefined-sanitizer], + AS_HELP_STRING([--undefined-sanitizer], [enable UndefinedBehaviorSanitizer support for detecting undefined behavior])) AC_ARG_WITH([crypto], AS_HELP_STRING([--with-crypto=], [choose between different implementations of cryptographic functions(default value is --with-crypto=internal)]))