| # |
| # Copyright (c) 2017, Alliance for Open Media. All rights reserved |
| # |
| # This source code is subject to the terms of the BSD 2 Clause License and the |
| # Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was |
| # not distributed with this source code in the LICENSE file, you can obtain it |
| # at www.aomedia.org/license/software. If the Alliance for Open Media Patent |
| # License 1.0 was not distributed with this source code in the PATENTS file, you |
| # can obtain it at www.aomedia.org/license/patent. |
| # |
| if(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_) |
| return() |
| endif() # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ |
| set(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 1) |
| |
| if(MSVC OR NOT SANITIZE) |
| return() |
| endif() |
| |
| include("${AOM_ROOT}/build/cmake/compiler_flags.cmake") |
| |
| string(TOLOWER ${SANITIZE} SANITIZE) |
| |
| # Require the sanitizer requested. cfi sanitizer requires all the flags in order |
| # for the compiler to accept it. |
| if("${SANITIZE}" MATCHES "cfi" AND CMAKE_C_COMPILER_ID MATCHES "Clang") |
| require_linker_flag("-fsanitize=${SANITIZE} -flto -fno-sanitize-trap=cfi \ |
| -fuse-ld=gold" YES) |
| require_compiler_flag("-fsanitize=${SANITIZE} -flto -fvisibility=hidden \ |
| -fno-sanitize-trap=cfi" YES) |
| else() |
| require_linker_flag("-fsanitize=${SANITIZE}") |
| require_compiler_flag("-fsanitize=${SANITIZE}" YES) |
| endif() |
| |
| # Make callstacks accurate. |
| require_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES) |
| |
| # Fix link errors due to missing rt compiler lib in 32-bit builds. |
| # http://llvm.org/bugs/show_bug.cgi?id=17693 |
| if(CMAKE_C_COMPILER_ID MATCHES "Clang") |
| if(${CMAKE_SIZEOF_VOID_P} EQUAL 4 |
| AND "${SANITIZE}" MATCHES "integer|undefined") |
| require_linker_flag("--rtlib=compiler-rt -lgcc_s") |
| endif() |
| endif() |