travis: enable -fsanitize=undefined

.travis.yml

@@ -6,22 +6,7 @@ before_install:
  - sudo add-apt-repository ppa:ubuntu-lxc/daily -y
  - sudo apt-get update -qq
  - sudo apt-get install -qq coccinelle parallel libapparmor-dev libcap-dev libseccomp-dev python3-dev python3-setuptools docbook2x libgnutls-dev libselinux1-dev linux-libc-dev
-script:
- - ./coccinelle/run-coccinelle.sh -i
- - git diff --exit-code
- - export CFLAGS="-Wall -Werror"
- - export LDFLAGS="-pthread -lpthread"
- - ./autogen.sh
- - rm -Rf build
- - mkdir build
- - cd build
- - ../configure --enable-tests --with-distro=unknown
- - make -j4
- - make DESTDIR=$TRAVIS_BUILD_DIR/install install
- - cd ../config/apparmor
- - ./lxc-generate-aa-rules.py container-rules.base > /tmp/output
- - diff /tmp/output container-rules
-
+script: src/tests/travis.sh
 notifications:
   email:
     recipients:

configure.ac

@@ -438,6 +438,12 @@ AC_ARG_ENABLE([asan],
 	[enable_asan=$enableval], [enable_asan=no])
 AM_CONDITIONAL([ENABLE_ASAN], [test "x$enable_asan" = "xyes"])
 
+# Build with UBSAN commands
+AC_ARG_ENABLE([ubsan],
+	[AS_HELP_STRING([--enable-ubsan], [build with ubsan sanitizer enabled [default=no]])],
+	[enable_asan=$enableval], [enable_ubsan=no])
+AM_CONDITIONAL([ENABLE_UBSAN], [test "x$enable_ubsan" = "xyes"])
+
 # Optional test binaries
 AC_ARG_ENABLE([tests],
 	[AS_HELP_STRING([--enable-tests], [build test/example binaries [default=no]])],

src/lxc/Makefile.am

@@ -232,12 +232,17 @@ endif
 liblxc_la_CFLAGS = -fPIC \
 		   -DPIC \
 		   $(AM_CFLAGS) \
+		   $(LIBLXC_SANITIZER) \
 		   -pthread
 if ENABLE_ASAN
 liblxc_la_CFLAGS += -fsanitize=address \
 		    -fno-omit-frame-pointer
 endif
 
+if ENABLE_UBSAN
+liblxc_la_CFLAGS += -fsanitize=undefined
+endif
+
 liblxc_la_LDFLAGS = -pthread \
 		    -Wl,-no-undefined \
 		    -Wl,-soname,liblxc.so.$(firstword $(subst ., ,@LXC_ABI@)) \

src/tests/travis.sh

+#! /bin/bash
+
+set -e
+
+./coccinelle/run-coccinelle.sh -i
+git diff --exit-code
+export CFLAGS="-Wall -Werror"
+export LDFLAGS="-pthread -lpthread"
+./autogen.sh
+rm -Rf build
+mkdir build
+cd build
+if [ "$CC_FOR_BUILD" == "gcc" ]; then
+  ../configure --enable-tests --enable-ubsan --with-distro=unknown
+else
+  ../configure --enable-tests --with-distro=unknown
+fi
+make -j4
+make DESTDIR="$TRAVIS_BUILD_DIR"/install install
+cd ../config/apparmor
+./lxc-generate-aa-rules.py container-rules.base > /tmp/output
+diff /tmp/output container-rules