6a921b6751
This introduces two new function that cleans up the sanitizer flags and disable linking of the sanitizer libraries. The qt_internal_skip_sanitizer function clears the sanitizer flags that are set in CMAKE_<C|CXX>_FLAGS variables by ECMEnableSanitizers.cmake. qt_internal_skip_linking_sanitizer collects all targets that are created in subdirectory and disables linking the asan targets. The asan target linking can be also disabled by setting SKIP_SANITIZER on specific target. Pick-to: 6.7 Change-Id: Ibbbbec0b4a6bfd37d939b8a55f8d04656f73c536 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
61 lines
2.5 KiB
CMake
61 lines
2.5 KiB
CMake
# Copyright (C) 2022 The Qt Company Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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# Computes which sanitizer options should be set based on features evaluated in qtbase.
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# Sets ECM_ENABLE_SANITIZERS with those options in the function calling scope.
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function(qt_internal_set_up_sanitizer_options)
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set(ECM_ENABLE_SANITIZERS "" CACHE STRING "Enable sanitizers")
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set_property(CACHE ECM_ENABLE_SANITIZERS PROPERTY STRINGS
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"address;memory;thread;undefined;fuzzer;fuzzer-no-link")
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# If QT_FEATURE_sanitize_foo was enabled, make sure to set the appropriate
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# ECM_ENABLE_SANITIZERS value.
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set(enabled_sanitizer_features "")
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foreach(sanitizer_type address memory thread undefined)
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if(QT_FEATURE_sanitize_${sanitizer_type})
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list(APPEND enabled_sanitizer_features "${sanitizer_type}")
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endif()
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endforeach()
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# There's a mismatch between fuzzer-no-link ECM option and fuzzer_no_link Qt feature.
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if(QT_FEATURE_sanitize_fuzzer_no_link)
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list(APPEND enabled_sanitizer_features "fuzzer-no-link")
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endif()
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if(enabled_sanitizer_features)
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set(ECM_ENABLE_SANITIZERS "${enabled_sanitizer_features}" PARENT_SCOPE)
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endif()
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endfunction()
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# This function clears the previously set sanitizer flags from CMAKE_<C|CXX>_FLAGS
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function(qt_internal_skip_sanitizer)
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if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR
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CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
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CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
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foreach(sanitizer ${ECM_ENABLE_SANITIZERS})
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string(TOLOWER "${sanitizer}" sanitizer)
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enable_sanitizer_flags("${sanitizer}")
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qt_internal_remove_compiler_flags(${XSAN_COMPILE_FLAGS})
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endforeach()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" PARENT_SCOPE)
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endif()
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endfunction()
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# This function disables the sanitizer library linking to all targets created in a subdirectory
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# where the function is called. Note that the function should be called after all involved targets
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# are created, to make sure they are collected by the function.
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function(qt_internal_skip_linking_sanitizer)
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_qt_internal_collect_buildsystem_targets(all_targets "${CMAKE_CURRENT_SOURCE_DIR}"
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INCLUDE
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STATIC_LIBRARY
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MODULE_LIBRARY
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SHARED_LIBRARY
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OBJECT_LIBRARY
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EXECUTABLE
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)
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foreach(t IN LISTS all_targets)
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set_property(TARGET ${t} PROPERTY SKIP_SANITIZER TRUE)
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endforeach()
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endfunction()
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