| # |
| # The MIT License (MIT) |
| # |
| # Copyright (c) 2013 Matthew Arsenault |
| # |
| # 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 module tests if address sanitizer is supported by the compiler, |
| # and creates a ASan build type (i.e. set CMAKE_BUILD_TYPE=ASan to use |
| # it). This sets the following variables: |
| # |
| # CMAKE_C_FLAGS_ASAN - Flags to use for C with asan |
| # CMAKE_CXX_FLAGS_ASAN - Flags to use for C++ with asan |
| # HAVE_ADDRESS_SANITIZER - True or false if the ASan build type is available |
| |
| include(CheckCCompilerFlag) |
| |
| # Set -Werror to catch "argument unused during compilation" warnings |
| set(CMAKE_REQUIRED_FLAGS "-Werror -faddress-sanitizer") # Also needs to be a link flag for test to pass |
| check_c_compiler_flag("-faddress-sanitizer" HAVE_FLAG_ADDRESS_SANITIZER) |
| |
| set(CMAKE_REQUIRED_FLAGS "-Werror -fsanitize=address") # Also needs to be a link flag for test to pass |
| check_c_compiler_flag("-fsanitize=address" HAVE_FLAG_SANITIZE_ADDRESS) |
| |
| unset(CMAKE_REQUIRED_FLAGS) |
| |
| if(HAVE_FLAG_SANITIZE_ADDRESS) |
| # Clang 3.2+ use this version |
| set(ADDRESS_SANITIZER_FLAG "-fsanitize=address") |
| elseif(HAVE_FLAG_ADDRESS_SANITIZER) |
| # Older deprecated flag for ASan |
| set(ADDRESS_SANITIZER_FLAG "-faddress-sanitizer") |
| endif() |
| |
| if(NOT ADDRESS_SANITIZER_FLAG) |
| return() |
| else(NOT ADDRESS_SANITIZER_FLAG) |
| set(HAVE_ADDRESS_SANITIZER FALSE) |
| endif() |
| |
| set(HAVE_ADDRESS_SANITIZER TRUE) |
| |
| set(CMAKE_C_FLAGS_ASAN "-O1 -g ${ADDRESS_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls" |
| CACHE STRING "Flags used by the C compiler during ASan builds." |
| FORCE) |
| set(CMAKE_CXX_FLAGS_ASAN "-O1 -g ${ADDRESS_SANITIZER_FLAG} -fno-omit-frame-pointer -fno-optimize-sibling-calls" |
| CACHE STRING "Flags used by the C++ compiler during ASan builds." |
| FORCE) |
| set(CMAKE_EXE_LINKER_FLAGS_ASAN "${ADDRESS_SANITIZER_FLAG}" |
| CACHE STRING "Flags used for linking binaries during ASan builds." |
| FORCE) |
| set(CMAKE_SHARED_LINKER_FLAGS_ASAN "${ADDRESS_SANITIZER_FLAG}" |
| CACHE STRING "Flags used by the shared libraries linker during ASan builds." |
| FORCE) |
| mark_as_advanced(CMAKE_C_FLAGS_ASAN |
| CMAKE_CXX_FLAGS_ASAN |
| CMAKE_EXE_LINKER_FLAGS_ASAN |
| CMAKE_SHARED_LINKER_FLAGS_ASAN) |