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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: BSD-3-Clause
# Computes which sanitizer options should be set based on features evaluated in qtbase.
# Sets ECM_ENABLE_SANITIZERS with those options in the function calling scope.
function(qt_internal_set_up_sanitizer_options)
set(ECM_ENABLE_SANITIZERS "" CACHE STRING "Enable sanitizers")
set_property(CACHE ECM_ENABLE_SANITIZERS PROPERTY STRINGS
"address;memory;thread;undefined;fuzzer;fuzzer-no-link")
# If QT_FEATURE_sanitize_foo was enabled, make sure to set the appropriate
# ECM_ENABLE_SANITIZERS value.
set(enabled_sanitizer_features "")
foreach(sanitizer_type address memory thread undefined)
if(QT_FEATURE_sanitize_${sanitizer_type})
list(APPEND enabled_sanitizer_features "${sanitizer_type}")
endif()
endforeach()
# There's a mismatch between fuzzer-no-link ECM option and fuzzer_no_link Qt feature.
if(QT_FEATURE_sanitize_fuzzer_no_link)
list(APPEND enabled_sanitizer_features "fuzzer-no-link")
endif()
if(enabled_sanitizer_features)
set(ECM_ENABLE_SANITIZERS "${enabled_sanitizer_features}" PARENT_SCOPE)
endif()
endfunction()
# This function clears the previously set sanitizer flags from CMAKE_<C|CXX>_FLAGS
function(qt_internal_skip_sanitizer)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU" OR
CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR
CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
foreach(sanitizer ${ECM_ENABLE_SANITIZERS})
string(TOLOWER "${sanitizer}" sanitizer)
enable_sanitizer_flags("${sanitizer}")
qt_internal_remove_compiler_flags(${XSAN_COMPILE_FLAGS})
endforeach()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" PARENT_SCOPE)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" PARENT_SCOPE)
endif()
endfunction()
# This function disables the sanitizer library linking to all targets created in a subdirectory
# where the function is called. Note that the function should be called after all involved targets
# are created, to make sure they are collected by the function.
function(qt_internal_skip_linking_sanitizer)
_qt_internal_collect_buildsystem_targets(all_targets "${CMAKE_CURRENT_SOURCE_DIR}"
INCLUDE
STATIC_LIBRARY
MODULE_LIBRARY
SHARED_LIBRARY
OBJECT_LIBRARY
EXECUTABLE
)
foreach(t IN LISTS all_targets)
set_property(TARGET ${t} PROPERTY SKIP_SANITIZER TRUE)
endforeach()
endfunction()
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