pw_system: Add pw_starter_target template

Adds a pw_starter_target GN template to simplify target toolchain
declarations.

Change-Id: I18c4a844106a115eb01945757907571f8de83c0d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/73561
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Armando Montanez <amontanez@google.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/pw_system/freertos_backends.gni b/pw_system/freertos_backends.gni
new file mode 100644
index 000000000..07b439251
--- /dev/null
+++ b/pw_system/freertos_backends.gni
@@ -0,0 +1,33 @@
+# Copyright 2021 The Pigweed Authors
+#
+# 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
+#
+#     https://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.
+
+import("//build_overrides/pigweed.gni")
+
+PW_SYSTEM_FREERTOS_BACKENDS = {
+  pw_chrono_SYSTEM_CLOCK_BACKEND = "$dir_pw_chrono_freertos:system_clock"
+  pw_chrono_SYSTEM_TIMER_BACKEND = "$dir_pw_chrono_freertos:system_timer"
+  pw_sync_BINARY_SEMAPHORE_BACKEND = "$dir_pw_sync_freertos:binary_semaphore"
+  pw_sync_THREAD_NOTIFICATION_BACKEND =
+      "$dir_pw_sync_freertos:thread_notification"
+  pw_sync_TIMED_THREAD_NOTIFICATION_BACKEND =
+      "$dir_pw_sync_freertos:timed_thread_notification"
+  pw_sync_MUTEX_BACKEND = "$dir_pw_sync_freertos:mutex"
+  pw_sync_TIMED_MUTEX_BACKEND = "$dir_pw_sync_freertos:timed_mutex"
+  pw_sync_INTERRUPT_SPIN_LOCK_BACKEND =
+      "$dir_pw_sync_freertos:interrupt_spin_lock"
+  pw_thread_ID_BACKEND = "$dir_pw_thread_freertos:id"
+  pw_thread_SLEEP_BACKEND = "$dir_pw_thread_freertos:sleep"
+  pw_thread_THREAD_BACKEND = "$dir_pw_thread_freertos:thread"
+  pw_thread_YIELD_BACKEND = "$dir_pw_thread_freertos:yield"
+}