1# Copyright 2021 The Pigweed Authors 2# 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 5# the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 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 13# the License. 14 15import("//build_overrides/pigweed.gni") 16 17import("$dir_pw_build/target_types.gni") 18import("$dir_pw_chrono/backend.gni") 19import("$dir_pw_docgen/docs.gni") 20 21config("public_include_path") { 22 include_dirs = [ "public" ] 23 visibility = [ ":*" ] 24} 25 26config("backend_config") { 27 include_dirs = [ "public_overrides" ] 28 visibility = [ ":*" ] 29} 30 31# This target provides the backend for pw::sync::InterruptSpinLock. 32# The provided implementation makes a single attempt to acquire the lock and 33# asserts if it is unavailable. It does not perform interrupt masking or disable 34# global interrupts, so this implementation does not support simultaneous 35# multi-threaded environments including IRQs, and is only meant to prevent 36# data corruption. 37pw_source_set("interrupt_spin_lock") { 38 public_configs = [ 39 ":public_include_path", 40 ":backend_config", 41 ] 42 public = [ 43 "public/pw_sync_baremetal/interrupt_spin_lock_inline.h", 44 "public/pw_sync_baremetal/interrupt_spin_lock_native.h", 45 "public_overrides/pw_sync_backend/interrupt_spin_lock_inline.h", 46 "public_overrides/pw_sync_backend/interrupt_spin_lock_native.h", 47 ] 48 public_deps = [ 49 "$dir_pw_assert", 50 "$dir_pw_sync:interrupt_spin_lock.facade", 51 "$dir_pw_sync:yield_core", 52 ] 53} 54 55pw_doc_group("docs") { 56 sources = [ "docs.rst" ] 57} 58