| # The MIT License (MIT) |
| # |
| # Copyright (c) |
| # 2013 Matthew Arsenault |
| # 2015-2016 RWTH Aachen University, Federal Republic of Germany |
| # |
| # Permission is hereby granted, free of charge, to any person obtaining a copy |
| # of this software and associated documentation files (the "Software"), to deal |
| # in the Software without restriction, including without limitation the rights |
| # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| # copies of the Software, and to permit persons to whom the Software is |
| # furnished to do so, subject to the following conditions: |
| # |
| # The above copyright notice and this permission notice shall be included in all |
| # copies or substantial portions of the Software. |
| # |
| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| # SOFTWARE. |
| |
| # Helper function to get the language of a source file. |
| function (sanitizer_lang_of_source FILE RETURN_VAR) |
| get_filename_component(FILE_EXT "${FILE}" EXT) |
| string(TOLOWER "${FILE_EXT}" FILE_EXT) |
| string(SUBSTRING "${FILE_EXT}" 1 -1 FILE_EXT) |
| |
| get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) |
| foreach (LANG ${ENABLED_LANGUAGES}) |
| list(FIND CMAKE_${LANG}_SOURCE_FILE_EXTENSIONS "${FILE_EXT}" TEMP) |
| if (NOT ${TEMP} EQUAL -1) |
| set(${RETURN_VAR} "${LANG}" PARENT_SCOPE) |
| return() |
| endif () |
| endforeach() |
| |
| set(${RETURN_VAR} "" PARENT_SCOPE) |
| endfunction () |
| |
| |
| # Helper function to get compilers used by a target. |
| function (sanitizer_target_compilers TARGET RETURN_VAR) |
| # Check if all sources for target use the same compiler. If a target uses |
| # e.g. C and Fortran mixed and uses different compilers (e.g. clang and |
| # gfortran) this can trigger huge problems, because different compilers may |
| # use different implementations for sanitizers. |
| set(BUFFER "") |
| get_target_property(TSOURCES ${TARGET} SOURCES) |
| foreach (FILE ${TSOURCES}) |
| # If expression was found, FILE is a generator-expression for an object |
| # library. Object libraries will be ignored. |
| string(REGEX MATCH "TARGET_OBJECTS:([^ >]+)" _file ${FILE}) |
| if ("${_file}" STREQUAL "") |
| sanitizer_lang_of_source(${FILE} LANG) |
| if (LANG) |
| list(APPEND BUFFER ${CMAKE_${LANG}_COMPILER_ID}) |
| endif () |
| endif () |
| endforeach () |
| |
| list(REMOVE_DUPLICATES BUFFER) |
| set(${RETURN_VAR} "${BUFFER}" PARENT_SCOPE) |
| endfunction () |
| |
| |
| # Helper function to check compiler flags for language compiler. |
| function (sanitizer_check_compiler_flag FLAG LANG VARIABLE) |
| if (${LANG} STREQUAL "C") |
| include(CheckCCompilerFlag) |
| check_c_compiler_flag("${FLAG}" ${VARIABLE}) |
| |
| elseif (${LANG} STREQUAL "CXX") |
| include(CheckCXXCompilerFlag) |
| check_cxx_compiler_flag("${FLAG}" ${VARIABLE}) |
| |
| elseif (${LANG} STREQUAL "Fortran") |
| # CheckFortranCompilerFlag was introduced in CMake 3.x. To be compatible |
| # with older Cmake versions, we will check if this module is present |
| # before we use it. Otherwise we will define Fortran coverage support as |
| # not available. |
| include(CheckFortranCompilerFlag OPTIONAL RESULT_VARIABLE INCLUDED) |
| if (INCLUDED) |
| check_fortran_compiler_flag("${FLAG}" ${VARIABLE}) |
| elseif (NOT CMAKE_REQUIRED_QUIET) |
| message(STATUS "Performing Test ${VARIABLE}") |
| message(STATUS "Performing Test ${VARIABLE}" |
| " - Failed (Check not supported)") |
| endif () |
| endif() |
| endfunction () |
| |
| |
| # Helper function to test compiler flags. |
| function (sanitizer_check_compiler_flags FLAG_CANDIDATES NAME PREFIX) |
| set(CMAKE_REQUIRED_QUIET ${${PREFIX}_FIND_QUIETLY}) |
| |
| get_property(ENABLED_LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES) |
| foreach (LANG ${ENABLED_LANGUAGES}) |
| # Sanitizer flags are not dependend on language, but the used compiler. |
| # So instead of searching flags foreach language, search flags foreach |
| # compiler used. |
| set(COMPILER ${CMAKE_${LANG}_COMPILER_ID}) |
| if (NOT DEFINED ${PREFIX}_${COMPILER}_FLAGS) |
| foreach (FLAG ${FLAG_CANDIDATES}) |
| if(NOT CMAKE_REQUIRED_QUIET) |
| message(STATUS "Try ${COMPILER} ${NAME} flag = [${FLAG}]") |
| endif() |
| |
| set(CMAKE_REQUIRED_FLAGS "${FLAG}") |
| unset(${PREFIX}_FLAG_DETECTED CACHE) |
| sanitizer_check_compiler_flag("${FLAG}" ${LANG} |
| ${PREFIX}_FLAG_DETECTED) |
| |
| if (${PREFIX}_FLAG_DETECTED) |
| # If compiler is a GNU compiler, search for static flag, if |
| # SANITIZE_LINK_STATIC is enabled. |
| if (SANITIZE_LINK_STATIC AND (${COMPILER} STREQUAL "GNU")) |
| string(TOLOWER ${PREFIX} PREFIX_lower) |
| sanitizer_check_compiler_flag( |
| "-static-lib${PREFIX_lower}" ${LANG} |
| ${PREFIX}_STATIC_FLAG_DETECTED) |
| |
| if (${PREFIX}_STATIC_FLAG_DETECTED) |
| set(FLAG "-static-lib${PREFIX_lower} ${FLAG}") |
| endif () |
| endif () |
| |
| set(${PREFIX}_${COMPILER}_FLAGS "${FLAG}" CACHE STRING |
| "${NAME} flags for ${COMPILER} compiler.") |
| mark_as_advanced(${PREFIX}_${COMPILER}_FLAGS) |
| break() |
| endif () |
| endforeach () |
| |
| if (NOT ${PREFIX}_FLAG_DETECTED) |
| set(${PREFIX}_${COMPILER}_FLAGS "" CACHE STRING |
| "${NAME} flags for ${COMPILER} compiler.") |
| mark_as_advanced(${PREFIX}_${COMPILER}_FLAGS) |
| |
| message(WARNING "${NAME} is not available for ${COMPILER} " |
| "compiler. Targets using this compiler will be " |
| "compiled without ${NAME}.") |
| endif () |
| endif () |
| endforeach () |
| endfunction () |
| |
| |
| # Helper to assign sanitizer flags for TARGET. |
| function (saitizer_add_flags TARGET NAME PREFIX) |
| # Get list of compilers used by target and check, if sanitizer is available |
| # for this target. Other compiler checks like check for conflicting |
| # compilers will be done in add_sanitizers function. |
| sanitizer_target_compilers(${TARGET} TARGET_COMPILER) |
| list(LENGTH TARGET_COMPILER NUM_COMPILERS) |
| if ("${${PREFIX}_${TARGET_COMPILER}_FLAGS}" STREQUAL "") |
| return() |
| endif() |
| |
| # Set compile- and link-flags for target. |
| set_property(TARGET ${TARGET} APPEND_STRING |
| PROPERTY COMPILE_FLAGS " ${${PREFIX}_${TARGET_COMPILER}_FLAGS}") |
| set_property(TARGET ${TARGET} APPEND_STRING |
| PROPERTY COMPILE_FLAGS " ${SanBlist_${TARGET_COMPILER}_FLAGS}") |
| set_property(TARGET ${TARGET} APPEND_STRING |
| PROPERTY LINK_FLAGS " ${${PREFIX}_${TARGET_COMPILER}_FLAGS}") |
| endfunction () |