tests: prevent inclusion of time.h in baremetal compiles

baremetal compiles should not include time.h, as MBEDTLS_HAVE_TIME is
undefined. To test this, provide an overriding include directory that
has a time.h which throws a meaningful error if included.

Signed-off-by: Daniel Axtens <[email protected]>

tests/include/baremetal-override/time.h

@@ -0,0 +1,18 @@
+/*
+ *  Copyright The Mbed TLS Contributors
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+#error "time.h included in a configuration without MBEDTLS_HAVE_TIME"

tests/scripts/all.sh

@@ -644,8 +644,6 @@ pre_check_tools () {
     "$@" scripts/output_env.sh
 }
 
-
-
 ################################################################
 #### Basic checks
 ################################################################
@@ -1168,7 +1166,7 @@ component_build_crypto_full () {
 component_build_crypto_baremetal () {
   msg "build: make, crypto only, baremetal config"
   scripts/config.py crypto_baremetal
-  make CFLAGS='-O1 -Werror'
+  make CFLAGS="-O1 -Werror -I$(pwd)/tests/include/baremetal-override/"
   if_build_succeeded are_empty_libraries library/libmbedx509.* library/libmbedtls.*
 }