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159 lines
3.6 KiB
159 lines
3.6 KiB
# Copyright 2020 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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import("//build_overrides/pigweed.gni")
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import("$dir_pw_build/python.gni")
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import("$dir_pw_docgen/docs.gni")
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# IMPORTANT: The compilation flags in this file must be kept in sync with
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# the CMake flags pw_build/CMakeLists.txt.
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config("colorize_output") {
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cflags = [
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# Colorize output. Ninja's Clang invocation disables color by default.
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"-fdiagnostics-color",
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]
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ldflags = cflags
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}
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config("debugging") {
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# Enable debug symbol generation. This has no effect on final code size.
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cflags = [ "-g" ]
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}
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config("extra_debugging") {
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# Include things like macro expansion in debug info.
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cflags = [ "-g3" ]
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}
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# Optimization levels
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config("optimize_debugging") {
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cflags = [ "-Og" ]
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ldflags = cflags
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}
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config("optimize_speed") {
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cflags = [ "-O2" ]
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ldflags = cflags
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}
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config("optimize_more_speed") {
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cflags = [ "-O3" ]
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ldflags = cflags
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}
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config("optimize_size") {
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cflags = [ "-Os" ]
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ldflags = cflags
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}
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# Standard compiler flags to reduce output binary size.
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config("reduced_size") {
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cflags = [
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"-fno-common",
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"-fno-exceptions",
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"-ffunction-sections",
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"-fdata-sections",
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]
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cflags_cc = [ "-fno-rtti" ]
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}
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config("strict_warnings") {
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cflags = [
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"-Wall",
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"-Wextra",
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"-Wimplicit-fallthrough",
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"-Wcast-qual",
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"-Wundef",
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"-Wpointer-arith",
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# Make all warnings errors, except for the exemptions below.
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"-Werror",
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"-Wno-error=cpp", # preprocessor #warning statement
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"-Wno-error=deprecated-declarations", # [[deprecated]] attribute
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]
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cflags_cc = [ "-Wnon-virtual-dtor" ]
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}
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# Thread safety warnings are only supported by Clang.
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config("clang_thread_safety_warnings") {
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cflags = [ "-Wthread-safety" ]
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defines = [ "_LIBCPP_ENABLE_THREAD_SAFETY_ANNOTATIONS=1" ]
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}
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# This config contains warnings that we don't necessarily recommend projects
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# enable, but are enabled for upstream Pigweed for maximum project
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# compatibility.
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config("extra_strict_warnings") {
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cflags = [
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"-Wshadow",
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"-Wredundant-decls",
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]
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cflags_c = [ "-Wstrict-prototypes" ]
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}
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config("cpp11") {
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cflags_cc = [ "-std=c++11" ]
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}
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config("cpp14") {
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cflags_cc = [ "-std=c++14" ]
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}
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config("cpp17") {
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cflags_cc = [
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"-std=c++17",
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# Allow uses of the register keyword, which may appear in C headers.
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"-Wno-register",
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]
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}
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# This empty target is used as the default value for module configurations.
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# Projects may set pw_build_DEFAULT_MODULE_CONFIG to a different GN target that
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# overrides modules' configuration options via macro definitions or a header
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# forcibly included with `-include`.
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group("empty") {
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}
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pool("pip_pool") {
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depth = 1
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}
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pool("copy_from_cipd_pool") {
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depth = 1
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}
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# Requirements for the pw_python_package lint targets.
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pw_python_requirements("python_lint") {
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requirements = [
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"build",
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"mypy==0.800",
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"pylint==2.6.0",
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]
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}
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pw_doc_group("docs") {
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sources = [
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"docs.rst",
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"python.rst",
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]
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}
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# Pool to limit a single thread to download external Go packages at a time.
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pool("go_download_pool") {
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depth = 1
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}
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