1 # Copyright 2021 The Pigweed Authors
3 # Licensed under the Apache License, Version 2.0 (the "License"); you may not
4 # use this file except in compliance with the License. You may obtain a copy of
7 # https://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
11 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
12 # License for the specific language governing permissions and limitations under
15 import("//build_overrides/pigweed.gni")
17 import("$dir_pw_build/target_types.gni")
18 import("$dir_pw_chrono/backend.gni")
19 import("$dir_pw_docgen/docs.gni")
21 config("public_include_path") {
22 include_dirs = [ "public" ]
26 config("backend_config") {
27 include_dirs = [ "public_overrides" ]
31 # This target provides the backend for pw::sync::SpinLock.
32 # The provided implementation makes a single attempt to acquire the lock and asserts
33 # if it is unavailable. It does not perform interrupt masking or disable global
34 # interrupts, so this implementation does not support simultaneous multi-threaded
35 # environments including IRQs, and is only meant to prevent data corruption.
36 pw_source_set("spin_lock_backend") {
38 ":public_include_path",
42 "public/pw_sync_baremetal/spin_lock_inline.h",
43 "public/pw_sync_baremetal/spin_lock_native.h",
44 "public_overrides/pw_sync_backend/spin_lock_inline.h",
45 "public_overrides/pw_sync_backend/spin_lock_native.h",
49 "$dir_pw_sync:spin_lock.facade",
50 "$dir_pw_sync:yield_core",
54 pw_doc_group("docs") {
55 sources = [ "docs.rst" ]