On 01/04/2018 01:05 PM, Marc-André Lureau wrote: > Enable ASAN/UBSan by default if the compiler supports it. > > Typical slowdown introduced by AddressSanitizer is 2x. > UBSan shouldn't have much impact on runtime cost. > > Signed-off-by: Marc-André Lureau <marcandre.lur...@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org> docker-debian-amd64 with QEMU_CONFIGURE_OPTS=--enable-debug: Tested-by: Philippe Mathieu-Daudé <f4...@amsat.org> > --- > configure | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/configure b/configure > index 3953859314..de1477c93a 100755 > --- a/configure > +++ b/configure > @@ -5161,6 +5161,13 @@ if test "$gcov" = "yes" ; then > elif test "$fortify_source" = "yes" ; then > CFLAGS="-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $CFLAGS" > elif test "$debug" = "yes"; then > + write_c_skeleton; > + if compile_prog "-fsanitize=address" ""; then > + CFLAGS="-fsanitize=address $CFLAGS" > + fi > + if compile_prog "-fsanitize=undefined" ""; then > + CFLAGS="-fsanitize=undefined $CFLAGS" > + fi > if compile_prog "-Og" ""; then > CFLAGS="-Og $CFLAGS" > elif compile_prog "-O1" ""; then >
