configure: add --enable-sanitize, use in jenkins.sh

--enable-sanitize adds address sanitizer CFLAGS/CPPFLAGS to the entire build.
Also pass UBSAN_OPTIONS to the test suite run (only has effect during runtime).

Add this flag to jenkins.sh's configure step. To ensure that we get the
sanitize results, add 'make check' to jenkins to catch sanitize failures;

Keep 'make distcheck' without ASAN; it has its own configure which omits
--enable-sanitize. This way we test both with and without ASAN.

Change-Id: Idf7f46fa048608c2951f2473cb528f6c8dc2681d

Author: neeels

configure.ac

@@ -202,6 +202,18 @@ then
 	AC_DEFINE([PANIC_INFLOOP],[1],[Use infinite loop on panic rather than fprintf/abort])
 fi
 
+AC_ARG_ENABLE(sanitize,
+	[AS_HELP_STRING(
+		[--enable-sanitize],
+		[Compile with address sanitizer enabled],
+	)],
+	[sanitize=$enableval], [sanitize="no"])
+if test x"$sanitize" = x"yes"
+then
+	CFLAGS+=" -fsanitize=address -fsanitize=undefined"
+	CPPFLAGS+=" -fsanitize=address -fsanitize=undefined"
+fi
+
 AC_OUTPUT(
 	libosmocore.pc
 	libosmocodec.pc

contrib/jenkins.sh

@@ -3,7 +3,8 @@
 set -ex
 
 autoreconf --install --force
-./configure --enable-static
-$MAKE $PARALLEL_MAKE
+./configure --enable-static --enable-sanitize
+$MAKE $PARALLEL_MAKE check \
+  || cat-testlogs.sh
 $MAKE distcheck \
   || cat-testlogs.sh