From 599ad6170663d34101ed14c2f37ffc71607958ac Mon Sep 17 00:00:00 2001 From: moneroexamples Date: Fri, 22 Dec 2017 07:52:14 +0800 Subject: [PATCH] add sanitizers-cmake to enable/disable ASAN --- CMakeLists.txt | 11 ++- README.md | 3 + cmake/FindASan.cmake | 59 ++++++++++++ cmake/FindMSan.cmake | 57 ++++++++++++ cmake/FindSanitizers.cmake | 87 ++++++++++++++++++ cmake/FindTSan.cmake | 65 ++++++++++++++ cmake/FindUBSan.cmake | 46 ++++++++++ cmake/asan-wrapper | 55 ++++++++++++ cmake/sanitize-helpers.cmake | 170 +++++++++++++++++++++++++++++++++++ 9 files changed, 547 insertions(+), 6 deletions(-) create mode 100644 cmake/FindASan.cmake create mode 100644 cmake/FindMSan.cmake create mode 100644 cmake/FindSanitizers.cmake create mode 100644 cmake/FindTSan.cmake create mode 100644 cmake/FindUBSan.cmake create mode 100755 cmake/asan-wrapper create mode 100644 cmake/sanitize-helpers.cmake diff --git a/CMakeLists.txt b/CMakeLists.txt index d25663c..05424aa 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -7,12 +7,8 @@ set(PROJECT_NAME project(${PROJECT_NAME}) set(CMAKE_CXX_FLAGS - "${CMAKE_CXX_FLAGS} -std=c++14 -fsanitize=address -fno-omit-frame-pointer") + "${CMAKE_CXX_FLAGS} -std=c++14") -set(CMAKE_C_FLAGS - "${CMAKE_C_FLAGS} -fsanitize=address -fno-omit-frame-pointer -DLEAK_SANITIZER") - -# if (WIN32) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj -O3") @@ -57,7 +53,8 @@ find_package(Boost COMPONENTS date_time REQUIRED) - +#info https://github.com/arsenm/sanitizers-cmake +find_package(Sanitizers) if(APPLE) include_directories(/usr/local/opt/openssl/include) @@ -90,6 +87,8 @@ set(SOURCE_FILES add_executable(${PROJECT_NAME} ${SOURCE_FILES}) +add_sanitizers(${PROJECT_NAME}) + create_git_version() configure_files(${CMAKE_CURRENT_SOURCE_DIR}/src/templates ${CMAKE_CURRENT_BINARY_DIR}/templates) diff --git a/README.md b/README.md index 51006d0..eca4249 100644 --- a/README.md +++ b/README.md @@ -126,6 +126,9 @@ cmake .. # altearnatively can use: cmake -DMONERO_DIR=/path/to/monero_folder .. # if monero is not in ~/monero +# +# also can build with ASAN (sanitizers), for example +# cmake -DSANITIZE_ADDRESS=On .. # compile make diff --git a/cmake/FindASan.cmake b/cmake/FindASan.cmake new file mode 100644 index 0000000..98ea7cb --- /dev/null +++ b/cmake/FindASan.cmake @@ -0,0 +1,59 @@ +# 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. + +option(SANITIZE_ADDRESS "Enable AddressSanitizer for sanitized targets." Off) + +set(FLAG_CANDIDATES + # Clang 3.2+ use this version. The no-omit-frame-pointer option is optional. + "-g -fsanitize=address -fno-omit-frame-pointer" + "-g -fsanitize=address" + + # Older deprecated flag for ASan + "-g -faddress-sanitizer" +) + + +if (SANITIZE_ADDRESS AND (SANITIZE_THREAD OR SANITIZE_MEMORY)) + message(FATAL_ERROR "AddressSanitizer is not compatible with " + "ThreadSanitizer or MemorySanitizer.") +endif () + + +include(sanitize-helpers) + +if (SANITIZE_ADDRESS) + sanitizer_check_compiler_flags("${FLAG_CANDIDATES}" "AddressSanitizer" + "ASan") + + find_program(ASan_WRAPPER "asan-wrapper" PATHS ${CMAKE_MODULE_PATH}) + mark_as_advanced(ASan_WRAPPER) +endif () + +function (add_sanitize_address TARGET) + if (NOT SANITIZE_ADDRESS) + return() + endif () + + sanitizer_add_flags(${TARGET} "AddressSanitizer" "ASan") +endfunction () diff --git a/cmake/FindMSan.cmake b/cmake/FindMSan.cmake new file mode 100644 index 0000000..22d0050 --- /dev/null +++ b/cmake/FindMSan.cmake @@ -0,0 +1,57 @@ +# 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. + +option(SANITIZE_MEMORY "Enable MemorySanitizer for sanitized targets." Off) + +set(FLAG_CANDIDATES + "-g -fsanitize=memory" +) + + +include(sanitize-helpers) + +if (SANITIZE_MEMORY) + if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Linux") + message(WARNING "MemorySanitizer disabled for target ${TARGET} because " + "MemorySanitizer is supported for Linux systems only.") + set(SANITIZE_MEMORY Off CACHE BOOL + "Enable MemorySanitizer for sanitized targets." FORCE) + elseif (NOT ${CMAKE_SIZEOF_VOID_P} EQUAL 8) + message(WARNING "MemorySanitizer disabled for target ${TARGET} because " + "MemorySanitizer is supported for 64bit systems only.") + set(SANITIZE_MEMORY Off CACHE BOOL + "Enable MemorySanitizer for sanitized targets." FORCE) + else () + sanitizer_check_compiler_flags("${FLAG_CANDIDATES}" "MemorySanitizer" + "MSan") + endif () +endif () + +function (add_sanitize_memory TARGET) + if (NOT SANITIZE_MEMORY) + return() + endif () + + sanitizer_add_flags(${TARGET} "MemorySanitizer" "MSan") +endfunction () diff --git a/cmake/FindSanitizers.cmake b/cmake/FindSanitizers.cmake new file mode 100644 index 0000000..4f586a3 --- /dev/null +++ b/cmake/FindSanitizers.cmake @@ -0,0 +1,87 @@ +# 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. + +# If any of the used compiler is a GNU compiler, add a second option to static +# link against the sanitizers. +option(SANITIZE_LINK_STATIC "Try to link static against sanitizers." Off) + + + + +set(FIND_QUIETLY_FLAG "") +if (DEFINED Sanitizers_FIND_QUIETLY) + set(FIND_QUIETLY_FLAG "QUIET") +endif () + +find_package(ASan ${FIND_QUIETLY_FLAG}) +find_package(TSan ${FIND_QUIETLY_FLAG}) +find_package(MSan ${FIND_QUIETLY_FLAG}) +find_package(UBSan ${FIND_QUIETLY_FLAG}) + + + + +function(sanitizer_add_blacklist_file FILE) + if(NOT IS_ABSOLUTE ${FILE}) + set(FILE "${CMAKE_CURRENT_SOURCE_DIR}/${FILE}") + endif() + get_filename_component(FILE "${FILE}" REALPATH) + + sanitizer_check_compiler_flags("-fsanitize-blacklist=${FILE}" + "SanitizerBlacklist" "SanBlist") +endfunction() + +function(add_sanitizers ...) + # If no sanitizer is enabled, return immediately. + if (NOT (SANITIZE_ADDRESS OR SANITIZE_MEMORY OR SANITIZE_THREAD OR + SANITIZE_UNDEFINED)) + return() + endif () + + foreach (TARGET ${ARGV}) + # Check if this target will be compiled by exactly one compiler. Other- + # wise sanitizers can't be used and a warning should be printed once. + sanitizer_target_compilers(${TARGET} TARGET_COMPILER) + list(LENGTH TARGET_COMPILER NUM_COMPILERS) + if (NUM_COMPILERS GREATER 1) + message(WARNING "Can't use any sanitizers for target ${TARGET}, " + "because it will be compiled by incompatible compilers. " + "Target will be compiled without sanitizers.") + return() + + # If the target is compiled by no known compiler, ignore it. + elseif (NUM_COMPILERS EQUAL 0) + message(WARNING "Can't use any sanitizers for target ${TARGET}, " + "because it uses an unknown compiler. Target will be " + "compiled without sanitizers.") + return() + endif () + + # Add sanitizers for target. + add_sanitize_address(${TARGET}) + add_sanitize_thread(${TARGET}) + add_sanitize_memory(${TARGET}) + add_sanitize_undefined(${TARGET}) + endforeach () +endfunction(add_sanitizers) diff --git a/cmake/FindTSan.cmake b/cmake/FindTSan.cmake new file mode 100644 index 0000000..3cba3c0 --- /dev/null +++ b/cmake/FindTSan.cmake @@ -0,0 +1,65 @@ +# 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. + +option(SANITIZE_THREAD "Enable ThreadSanitizer for sanitized targets." Off) + +set(FLAG_CANDIDATES + "-g -fsanitize=thread" +) + + +# ThreadSanitizer is not compatible with MemorySanitizer. +if (SANITIZE_THREAD AND SANITIZE_MEMORY) + message(FATAL_ERROR "ThreadSanitizer is not compatible with " + "MemorySanitizer.") +endif () + + +include(sanitize-helpers) + +if (SANITIZE_THREAD) + if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND + NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Darwin") + message(WARNING "ThreadSanitizer disabled for target ${TARGET} because " + "ThreadSanitizer is supported for Linux systems and macOS only.") + set(SANITIZE_THREAD Off CACHE BOOL + "Enable ThreadSanitizer for sanitized targets." FORCE) + elseif (NOT ${CMAKE_SIZEOF_VOID_P} EQUAL 8) + message(WARNING "ThreadSanitizer disabled for target ${TARGET} because " + "ThreadSanitizer is supported for 64bit systems only.") + set(SANITIZE_THREAD Off CACHE BOOL + "Enable ThreadSanitizer for sanitized targets." FORCE) + else () + sanitizer_check_compiler_flags("${FLAG_CANDIDATES}" "ThreadSanitizer" + "TSan") + endif () +endif () + +function (add_sanitize_thread TARGET) + if (NOT SANITIZE_THREAD) + return() + endif () + + sanitizer_add_flags(${TARGET} "ThreadSanitizer" "TSan") +endfunction () diff --git a/cmake/FindUBSan.cmake b/cmake/FindUBSan.cmake new file mode 100644 index 0000000..ae103f7 --- /dev/null +++ b/cmake/FindUBSan.cmake @@ -0,0 +1,46 @@ +# The MIT License (MIT) +# +# Copyright (c) +# 2013 Matthew Arsenault +# 2015-2016 RWTH Aachen University, Federal Republic of Germany +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + +option(SANITIZE_UNDEFINED + "Enable UndefinedBehaviorSanitizer for sanitized targets." Off) + +set(FLAG_CANDIDATES + "-g -fsanitize=undefined" +) + + +include(sanitize-helpers) + +if (SANITIZE_UNDEFINED) + sanitizer_check_compiler_flags("${FLAG_CANDIDATES}" + "UndefinedBehaviorSanitizer" "UBSan") +endif () + +function (add_sanitize_undefined TARGET) + if (NOT SANITIZE_UNDEFINED) + return() + endif () + + sanitizer_add_flags(${TARGET} "UndefinedBehaviorSanitizer" "UBSan") +endfunction () diff --git a/cmake/asan-wrapper b/cmake/asan-wrapper new file mode 100755 index 0000000..5d54103 --- /dev/null +++ b/cmake/asan-wrapper @@ -0,0 +1,55 @@ +#!/bin/sh + +# The MIT License (MIT) +# +# Copyright (c) +# 2013 Matthew Arsenault +# 2015-2016 RWTH Aachen University, Federal Republic of Germany +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + +# This script is a wrapper for AddressSanitizer. In some special cases you need +# to preload AddressSanitizer to avoid error messages - e.g. if you're +# preloading another library to your application. At the moment this script will +# only do something, if we're running on a Linux platform. OSX might not be +# affected. + + +# Exit immediately, if platform is not Linux. +if [ "$(uname)" != "Linux" ] +then + exec $@ +fi + + +# Get the used libasan of the application ($1). If a libasan was found, it will +# be prepended to LD_PRELOAD. +libasan=$(ldd $1 | grep libasan | sed "s/^[[:space:]]//" | cut -d' ' -f1) +if [ -n "$libasan" ] +then + if [ -n "$LD_PRELOAD" ] + then + export LD_PRELOAD="$libasan:$LD_PRELOAD" + else + export LD_PRELOAD="$libasan" + fi +fi + +# Execute the application. +exec $@ diff --git a/cmake/sanitize-helpers.cmake b/cmake/sanitize-helpers.cmake new file mode 100644 index 0000000..c51ee6a --- /dev/null +++ b/cmake/sanitize-helpers.cmake @@ -0,0 +1,170 @@ +# The MIT License (MIT) +# +# Copyright (c) +# 2013 Matthew Arsenault +# 2015-2016 RWTH Aachen University, Federal Republic of Germany +# +# Permission is hereby granted, free of charge, to any person obtaining a copy +# of this software and associated documentation files (the "Software"), to deal +# in the Software without restriction, including without limitation the rights +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +# copies of the Software, and to permit persons to whom the Software is +# furnished to do so, subject to the following conditions: +# +# The above copyright notice and this permission notice shall be included in all +# copies or substantial portions of the Software. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. + +# Helper function to get the language of a source file. +function (sanitizer_lang_of_source FILE RETURN_VAR) + get_filename_component(FILE_EXT "${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 ${NAME}.") + endif () + endif () + endforeach () +endfunction () + + +# Helper to assign sanitizer flags for TARGET. +function (sanitizer_add_flags TARGET NAME PREFIX) + # Get list of compilers used by target and check, if sanitizer is available + # for this target. Other compiler checks like check for conflicting + # compilers will be done in add_sanitizers function. + sanitizer_target_compilers(${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 ()