78 lines
3.1 KiB
CMake
78 lines
3.1 KiB
CMake
#
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# The MIT License (MIT)
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#
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# Copyright (c) 2013 Matthew Arsenault
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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# This module tests if thread sanitizer is supported by the compiler,
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# and creates a TSan build type (i.e. set CMAKE_BUILD_TYPE=TSan to use
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# it). This sets the following variables:
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#
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# CMAKE_C_FLAGS_TSAN - Flags to use for C with tsan
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# CMAKE_CXX_FLAGS_TSAN - Flags to use for C++ with tsan
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# HAVE_THREAD_SANITIZER - True or false if the TSan build type is available
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include(CheckCCompilerFlag)
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# Set -Werror to catch "argument unused during compilation" warnings
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set(CMAKE_REQUIRED_FLAGS "-Werror -fthread-sanitizer") # Also needs to be a link flag for test to pass
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check_c_compiler_flag("-fthread-sanitizer" HAVE_FLAG_THREAD_SANITIZER)
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set(CMAKE_REQUIRED_FLAGS "-Werror -fsanitize=thread") # Also needs to be a link flag for test to pass
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check_c_compiler_flag("-fsanitize=thread" HAVE_FLAG_SANITIZE_THREAD)
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unset(CMAKE_REQUIRED_FLAGS)
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# A special test that uses threads seems to not be necessary. tsan
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# symbols are used even in just int main() { return 0; }
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if(HAVE_FLAG_SANITIZE_THREAD)
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# Clang 3.2+ use this version
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set(THREAD_SANITIZER_FLAG "-fsanitize=thread")
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elseif(HAVE_FLAG_THREAD_SANITIZER)
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# Older deprecated flag for TSan
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set(THREAD_SANITIZER_FLAG_FLAG "-fthread-sanitizer")
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else()
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set(HAVE_THREAD_SANITIZER FALSE)
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return()
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endif()
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set(HAVE_THREAD_SANITIZER TRUE)
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set(CMAKE_C_FLAGS_TSAN "-O1 -g ${THREAD_SANITIZER_FLAG} -fno-omit-frame-pointer"
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CACHE STRING "Flags used by the C compiler during TSan builds."
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FORCE
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)
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set(CMAKE_CXX_FLAGS_TSAN "-O1 -g ${THREAD_SANITIZER_FLAG} -fno-omit-frame-pointer"
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CACHE STRING "Flags used by the C++ compiler during TSan builds."
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FORCE)
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set(CMAKE_EXE_LINKER_FLAGS_TSAN "${THREAD_SANITIZER_FLAG}"
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CACHE STRING "Flags used for linking binaries during TSan builds."
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FORCE)
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set(CMAKE_SHARED_LINKER_FLAGS_TSAN "${THREAD_SANITIZER_FLAG}"
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CACHE STRING "Flags used by the shared libraries linker during TSan builds."
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FORCE)
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mark_as_advanced(CMAKE_C_FLAGS_TSAN
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CMAKE_CXX_FLAGS_TSAN
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CMAKE_EXE_LINKER_FLAGS_TSAN
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CMAKE_SHARED_LINKER_FLAGS_TSAN)
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