derek.holloway
7502bf64a4
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45 lines
1.6 KiB
CMake
45 lines
1.6 KiB
CMake
# Build for the ThreadSanitizer runtime support library.
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set(TSAN_CFLAGS ${SANITIZER_COMMON_CFLAGS})
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# SANITIZER_COMMON_CFLAGS contains -fPIC, but it's performance-critical for
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# TSan runtime to be built with -fPIE to reduce the number of register spills.
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# On FreeBSD however it provokes linkage issue thus we disable it.
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if(NOT CMAKE_SYSTEM MATCHES "FreeBSD")
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append_list_if(COMPILER_RT_HAS_FPIE_FLAG -fPIE TSAN_CFLAGS)
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endif()
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append_rtti_flag(OFF TSAN_CFLAGS)
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if(COMPILER_RT_TSAN_DEBUG_OUTPUT)
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# Add extra debug information to TSan runtime. This configuration is rarely
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# used, but we need to support it so that debug output will not bitrot.
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list(APPEND TSAN_CFLAGS -DTSAN_DEBUG_OUTPUT=2)
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endif()
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# Add the actual runtime library.
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add_subdirectory(rtl)
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# Build libcxx instrumented with TSan.
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if(COMPILER_RT_LIBCXX_PATH AND
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COMPILER_RT_LIBCXXABI_PATH AND
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COMPILER_RT_TEST_COMPILER_ID STREQUAL "Clang" AND
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NOT ANDROID)
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set(libcxx_tsan_deps)
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foreach(arch ${TSAN_SUPPORTED_ARCH})
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get_target_flags_for_arch(${arch} TARGET_CFLAGS)
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set(LIBCXX_PREFIX ${CMAKE_CURRENT_BINARY_DIR}/libcxx_tsan_${arch})
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add_custom_libcxx(libcxx_tsan_${arch} ${LIBCXX_PREFIX}
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DEPS ${TSAN_RUNTIME_LIBRARIES}
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CFLAGS ${TARGET_CFLAGS} -fsanitize=thread
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CMAKE_ARGS -DRUNTIMES_EXECUTE_ONLY_CODE=${RUNTIMES_EXECUTE_ONLY_CODE}
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USE_TOOLCHAIN)
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list(APPEND libcxx_tsan_deps libcxx_tsan_${arch}-install-cmake326-workaround)
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endforeach()
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add_custom_target(libcxx_tsan DEPENDS ${libcxx_tsan_deps})
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set_target_properties(libcxx_tsan PROPERTIES FOLDER "Compiler-RT/Metatargets")
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endif()
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if(COMPILER_RT_INCLUDE_TESTS)
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add_subdirectory(tests)
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endif()
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