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88 lines
2.8 KiB
88 lines
2.8 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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# IMPORTANT: The compilation flags in this file must be kept in sync with
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# the GN flags //pw_build/BUILD.gn.
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# Target that specifies the standard Pigweed build options.
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add_library(pw_build INTERFACE)
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target_compile_options(pw_build INTERFACE "-g")
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target_link_libraries(pw_build
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INTERFACE
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pw_build.reduced_size
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pw_build.cpp17
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)
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target_compile_options(pw_build
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INTERFACE
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# Force the compiler use colorized output. This is required for Ninja.
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$<$<CXX_COMPILER_ID:Clang>:-fcolor-diagnostics>
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$<$<CXX_COMPILER_ID:GNU>:-fdiagnostics-color=always>
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)
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# Declare top-level targets for tests.
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add_custom_target(pw_tests.default)
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add_custom_target(pw_run_tests.default)
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add_custom_target(pw_tests DEPENDS pw_tests.default)
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add_custom_target(pw_run_tests DEPENDS pw_run_tests.default)
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# Define the standard Pigweed compile options.
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add_library(pw_build.reduced_size INTERFACE)
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target_compile_options(pw_build.reduced_size
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INTERFACE
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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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$<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>
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)
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add_library(pw_build.strict_warnings INTERFACE)
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target_compile_options(pw_build.strict_warnings
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INTERFACE
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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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$<$<COMPILE_LANGUAGE:CXX>:-Wnon-virtual-dtor>
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)
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add_library(pw_build.extra_strict_warnings INTERFACE)
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target_compile_options(pw_build.extra_strict_warnings
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INTERFACE
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"-Wshadow"
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"-Wredundant-decls"
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$<$<COMPILE_LANGUAGE:C>:-Wstrict-prototypes>
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)
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add_library(pw_build.cpp17 INTERFACE)
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target_compile_options(pw_build.cpp17
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INTERFACE
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$<$<COMPILE_LANGUAGE:CXX>:-std=c++17>
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# Allow uses of the register keyword, which may appear in C headers.
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$<$<COMPILE_LANGUAGE:CXX>:-Wno-register>
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)
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# Create an empty source file and library for general use.
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file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/empty_file.c" "")
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add_library(pw_build.empty OBJECT "${CMAKE_CURRENT_BINARY_DIR}/empty_file.c" "")
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