Add support for running the testsuite under 'valgrind'.

tests/automake.mk

@@ -95,6 +95,54 @@ check-lcov: all tests/atconfig tests/atlocal $(TESTSUITE) $(lcov_wrappers)
 		cd tests && genhtml -q -o coverage.html coverage.info; \
 		exit $$rc
 
+# valgrind support
+
+valgrind_wrappers = \
+	tests/valgrind/ovs-appctl \
+	tests/valgrind/ovs-vsctl \
+	tests/valgrind/ovsdb-client \
+	tests/valgrind/ovsdb-server \
+	tests/valgrind/ovsdb-tool \
+	tests/valgrind/test-aes128 \
+	tests/valgrind/test-classifier \
+	tests/valgrind/test-csum \
+	tests/valgrind/test-dhcp-client \
+	tests/valgrind/test-dir_name \
+	tests/valgrind/test-flows \
+	tests/valgrind/test-hash \
+	tests/valgrind/test-hmap \
+	tests/valgrind/test-json \
+	tests/valgrind/test-jsonrpc \
+	tests/valgrind/test-list \
+	tests/valgrind/test-lockfile \
+	tests/valgrind/test-ovsdb \
+	tests/valgrind/test-reconnect \
+	tests/valgrind/test-sha1 \
+	tests/valgrind/test-stp \
+	tests/valgrind/test-timeval \
+	tests/valgrind/test-type-props \
+	tests/valgrind/test-uuid \
+	tests/valgrind/test-vconn
+
+$(valgrind_wrappers): tests/valgrind-wrapper.in
+	@test -d tests/valgrind || mkdir tests/valgrind
+	sed -e 's,[@]wrap_program[@],$@,' \
+		$(top_srcdir)/tests/valgrind-wrapper.in > $@.tmp
+	chmod +x $@.tmp
+	mv $@.tmp $@
+CLEANFILES += $(valgrind_wrappers)
+EXTRA_DIST += tests/valgrind-wrapper.in
+
+VALGRIND = valgrind --log-file=valgrind.%p --leak-check=full \
+	--suppressions=$(abs_top_srcdir)/tests/openssl.supp --num-callers=20
+EXTRA_DIST += tests/openssl.supp
+check-valgrind: all tests/atconfig tests/atlocal $(TESTSUITE) $(valgrind_wrappers)
+	$(SHELL) '$(TESTSUITE)' -C tests CHECK_VALGRIND=true VALGRIND='$(VALGRIND)' AUTOTEST_PATH='tests/valgrind:$(AUTOTEST_PATH)' -d $(TESTSUITEFLAGS)
+	@echo
+	@echo '----------------------------------------------------------------------'
+	@echo 'Valgrind output can be found in tests/testsuite.dir/*/valgrind.*'
+	@echo '----------------------------------------------------------------------'
+
 clean-local:
 	test ! -f '$(TESTSUITE)' || $(SHELL) '$(TESTSUITE)' -C tests --clean
 

tests/openssl.supp

@@ -0,0 +1,13 @@
+# suppress OpenSSL errors from valgrind
+
+{
+   BN_mod_inverse
+   Memcheck:Cond
+   fun:BN_mod_inverse
+}
+
+{
+   BN_div
+   Memcheck:Cond
+   fun:BN_div
+}

tests/valgrind-wrapper.in

@@ -0,0 +1,36 @@
+#! /bin/sh
+
+wrap_program=`basename '@wrap_program@'`
+
+# Strip the first directory from $PATH that contains $wrap_program,
+# so that below we run the real $wrap_program, not ourselves.
+not_found=true
+new_path=
+first=true
+save_IFS=$IFS
+IFS=:
+for dir in $PATH; do
+    IFS=$save_IFS
+    if $not_found && test -x "$dir/$wrap_program"; then
+        not_found=false
+    else
+        if $first; then
+            first=false
+            new_path=$dir
+        else
+            new_path=$new_path:$dir
+        fi
+    fi
+done
+IFS=$save_IFS
+if $not_found; then
+    echo "$0: error: cannot find $wrap_program in \$PATH" >&2
+    exit 1
+fi
+PATH=$new_path
+export PATH
+
+: ${VALGRIND:=valgrind -q --log-file=valgrind.%p --leak-check=full}
+exec $VALGRIND $wrap_program "$@"
+echo "$0: failed to execute $VALGRIND $wrap_program" "$@" >&2
+exit 1