sanitizers.cmake (1853B)
1 # 2 # Copyright (c) 2017, Alliance for Open Media. All rights reserved. 3 # 4 # This source code is subject to the terms of the BSD 2 Clause License and the 5 # Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was 6 # not distributed with this source code in the LICENSE file, you can obtain it 7 # at www.aomedia.org/license/software. If the Alliance for Open Media Patent 8 # License 1.0 was not distributed with this source code in the PATENTS file, you 9 # can obtain it at www.aomedia.org/license/patent. 10 # 11 if(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_) 12 return() 13 endif() # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 14 set(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 1) 15 16 if(MSVC OR NOT SANITIZE) 17 return() 18 endif() 19 20 include("${AOM_ROOT}/build/cmake/compiler_flags.cmake") 21 22 string(TOLOWER ${SANITIZE} SANITIZE) 23 24 # Require the sanitizer requested. cfi sanitizer requires all the flags in order 25 # for the compiler to accept it. 26 if("${SANITIZE}" MATCHES "cfi" AND CMAKE_C_COMPILER_ID MATCHES "Clang") 27 require_linker_flag("-fsanitize=${SANITIZE} -flto -fno-sanitize-trap=cfi \ 28 -fuse-ld=gold" YES) 29 require_compiler_flag("-fsanitize=${SANITIZE} -flto -fvisibility=hidden \ 30 -fno-sanitize-trap=cfi" YES) 31 else() 32 require_linker_flag("-fsanitize=${SANITIZE}") 33 require_compiler_flag("-fsanitize=${SANITIZE}" YES) 34 if("${SANITIZE}" MATCHES "integer|undefined") 35 require_compiler_flag("-fsanitize=float-cast-overflow" YES) 36 endif() 37 endif() 38 39 # Make callstacks accurate. 40 require_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES) 41 42 # Fix link errors due to missing rt compiler lib in 32-bit builds. 43 # http://llvm.org/bugs/show_bug.cgi?id=17693 44 if(CMAKE_C_COMPILER_ID MATCHES "Clang") 45 if(${CMAKE_SIZEOF_VOID_P} EQUAL 4 46 AND "${SANITIZE}" MATCHES "integer|undefined") 47 require_linker_flag("--rtlib=compiler-rt -lgcc_s") 48 endif() 49 endif()