Add in-kernel test runner
This adds a way to run tests inside the Smalltown kernel.
Improvements to the Bazel part of this are tracked in T726
Test Plan: Tested by intentionally failing the test.
X-Origin-Diff: phab/D485
GitOrigin-RevId: e4aad7f28d122d82a7fcb6699e678cbe022e2f73
diff --git a/core/tools/kconfig-patcher/kconfig-patcher.bzl b/core/tools/kconfig-patcher/kconfig-patcher.bzl
new file mode 100644
index 0000000..a6af343
--- /dev/null
+++ b/core/tools/kconfig-patcher/kconfig-patcher.bzl
@@ -0,0 +1,33 @@
+# Copyright 2020 The Monogon Project Authors.
+#
+# 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.
+
+"""Override configs in a Linux kernel Kconfig
+"""
+
+def kconfig_patch(name, src, out, override_configs, **kwargs):
+ native.genrule(
+ name = name,
+ srcs = [src],
+ outs = [out],
+ tools = [
+ "//core/tools/kconfig-patcher",
+ ],
+ cmd = """
+ $(location //core/tools/kconfig-patcher) \
+ -in $< -out $@ '%s'
+ """ % struct(overrides = override_configs).to_json(),
+ **kwargs
+ )