1# Copyright 2020 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 15# Do not rely on the PW_ROOT environment variable being set through bootstrap. 16# Regardless of whether it's set or not the following include will ensure it is. 17include(${CMAKE_CURRENT_LIST_DIR}/../../pw_build/pigweed.cmake) 18 19include($ENV{PW_ROOT}/pw_assert/backend.cmake) 20include($ENV{PW_ROOT}/pw_async2/backend.cmake) 21include($ENV{PW_ROOT}/pw_chrono/backend.cmake) 22include($ENV{PW_ROOT}/pw_log/backend.cmake) 23include($ENV{PW_ROOT}/pw_perf_test/backend.cmake) 24include($ENV{PW_ROOT}/pw_rpc/system_server/backend.cmake) 25include($ENV{PW_ROOT}/pw_sync/backend.cmake) 26include($ENV{PW_ROOT}/pw_sys_io/backend.cmake) 27include($ENV{PW_ROOT}/pw_system/backend.cmake) 28include($ENV{PW_ROOT}/pw_thread/backend.cmake) 29include($ENV{PW_ROOT}/pw_trace/backend.cmake) 30include($ENV{PW_ROOT}/pw_trace_tokenized/backend.cmake) 31 32set(CMAKE_C_COMPILER clang) 33set(CMAKE_CXX_COMPILER clang++) 34 35pw_add_global_compile_options(-std=c++20 LANGUAGES CXX) 36 37# Configure backend for assert facade. 38pw_set_backend(pw_assert.check pw_assert.print_and_abort_check_backend) 39pw_set_backend(pw_assert.assert pw_assert.print_and_abort_assert_backend) 40 41# Configure backend for async dispatcher facade 42pw_set_backend(pw_async2.dispatcher pw_async2_epoll.dispatcher_backend) 43 44# Configure backend for logging facade. 45pw_set_backend(pw_log pw_log_basic) 46 47# Configure backends for pw_sync's facades. 48pw_set_backend(pw_sync.interrupt_spin_lock pw_sync_stl.interrupt_spin_lock) 49pw_set_backend(pw_sync.binary_semaphore pw_sync_stl.binary_semaphore_backend) 50pw_set_backend(pw_sync.counting_semaphore 51 pw_sync_stl.counting_semaphore_backend) 52pw_set_backend(pw_sync.mutex pw_sync_stl.mutex_backend) 53pw_set_backend(pw_sync.timed_mutex pw_sync_stl.timed_mutex_backend) 54pw_set_backend(pw_sync.thread_notification 55 pw_sync.binary_semaphore_thread_notification_backend) 56pw_set_backend(pw_sync.timed_thread_notification 57 pw_sync.binary_semaphore_timed_thread_notification_backend) 58 59# Configure backend for pw_sys_io facade. 60pw_set_backend(pw_sys_io pw_sys_io_stdio) 61 62# Configure backend for pw_rpc_system_server. 63pw_set_backend(pw_rpc.system_server targets.host.system_rpc_server) 64# TODO(hepler): set config to use global mutex 65 66# Configure backend for pw_chrono's facades. 67pw_set_backend(pw_chrono.system_clock pw_chrono_stl.system_clock) 68pw_set_backend(pw_chrono.system_timer pw_chrono_stl.system_timer) 69 70# Configure backend for pw_perf_test's facade 71pw_set_backend(pw_perf_test.TIMER_INTERFACE_BACKEND pw_perf_test.chrono_timer) 72 73# Configure backends for pw_thread's facades. 74pw_set_backend(pw_thread.id pw_thread_stl.id) 75pw_set_backend(pw_thread.yield pw_thread_stl.yield) 76pw_set_backend(pw_thread.sleep pw_thread_stl.sleep) 77pw_set_backend(pw_thread.thread pw_thread_stl.thread) 78pw_set_backend(pw_thread.thread_creation pw_thread_stl.thread_creation) 79pw_set_backend(pw_thread.test_thread_context pw_thread_stl.test_thread_context) 80pw_set_backend(pw_thread.thread_iteration pw_thread_stl.thread_iteration) 81 82# Configure backends for pw_system 83pw_set_backend(pw_system.target_hooks pw_system.stl_target_hooks) 84pw_set_backend(pw_system.rpc_server pw_system.hdlc_rpc_server) 85pw_set_backend(pw_system.io pw_system.sys_io_target_io) 86 87# Configure backends for pw_trace 88pw_set_backend(pw_trace pw_trace_tokenized) 89# Maybe this should just be a facade? 90set(pw_trace_tokenizer_time pw_trace_tokenized.host_trace_time CACHE STRING "Tokenizer trace time implementation" FORCE) 91 92if(CMAKE_SYSTEM_NAME STREQUAL "Darwin") 93 # The CIPD provided Clang/LLVM toolchain must link against the matched 94 # libc++ which is also from CIPD. However, by default, Clang on Mac (but 95 # not on Linux) will fall back to the system libc++, which is 96 # incompatible due to an ABI change. 97 # 98 # Pull the appropriate paths from our Pigweed env setup. 99 set(CMAKE_EXE_LINKER_FLAGS_INIT "${CMAKE_EXE_LINKER_FLAGS_INIT} -nostdlib++ $ENV{PW_PIGWEED_CIPD_INSTALL_DIR}/lib/libc++.a") 100 101 # macOS uses llvm-libtool-darwin, which has different behavior. 102 set(LIBTOOL_TOOL llvm-libtool-darwin) 103 set(CMAKE_C_ARCHIVE_CREATE "${LIBTOOL_TOOL} -static -no_warning_for_no_symbols -o <TARGET> <LINK_FLAGS> <OBJECTS>") 104 set(CMAKE_CXX_ARCHIVE_CREATE "${LIBTOOL_TOOL} -static -no_warning_for_no_symbols -o <TARGET> <LINK_FLAGS> <OBJECTS>") 105elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux") 106 # Use the CIPD provided sysroot to make host builds more hermetic. 107 set(CMAKE_SYSROOT "$ENV{PW_PIGWEED_CIPD_INSTALL_DIR}/clang_sysroot") 108endif() 109 110# Explicitly use lld to link. 111foreach(TYPE IN ITEMS EXE SHARED MODULE) 112 set(CMAKE_${TYPE}_LINKER_FLAGS_INIT "${CMAKE_${TYPE}_LINKER_FLAGS_INIT} -fuse-ld=lld") 113endforeach() 114 115set(pw_build_WARNINGS 116 pw_build.strict_warnings 117 pw_build.extra_strict_warnings 118 pw_build.pedantic_warnings 119 CACHE STRING "" FORCE 120) 121