1*77c1e3ccSAndroid Build Coastguard Worker# 2*77c1e3ccSAndroid Build Coastguard Worker# Copyright (c) 2017, Alliance for Open Media. All rights reserved. 3*77c1e3ccSAndroid Build Coastguard Worker# 4*77c1e3ccSAndroid Build Coastguard Worker# This source code is subject to the terms of the BSD 2 Clause License and the 5*77c1e3ccSAndroid Build Coastguard Worker# Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License was 6*77c1e3ccSAndroid Build Coastguard Worker# not distributed with this source code in the LICENSE file, you can obtain it 7*77c1e3ccSAndroid Build Coastguard Worker# at www.aomedia.org/license/software. If the Alliance for Open Media Patent 8*77c1e3ccSAndroid Build Coastguard Worker# License 1.0 was not distributed with this source code in the PATENTS file, you 9*77c1e3ccSAndroid Build Coastguard Worker# can obtain it at www.aomedia.org/license/patent. 10*77c1e3ccSAndroid Build Coastguard Worker# 11*77c1e3ccSAndroid Build Coastguard Workerif(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_) 12*77c1e3ccSAndroid Build Coastguard Worker return() 13*77c1e3ccSAndroid Build Coastguard Workerendif() # AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 14*77c1e3ccSAndroid Build Coastguard Workerset(AOM_BUILD_CMAKE_SANITIZERS_CMAKE_ 1) 15*77c1e3ccSAndroid Build Coastguard Worker 16*77c1e3ccSAndroid Build Coastguard Workerif(MSVC OR NOT SANITIZE) 17*77c1e3ccSAndroid Build Coastguard Worker return() 18*77c1e3ccSAndroid Build Coastguard Workerendif() 19*77c1e3ccSAndroid Build Coastguard Worker 20*77c1e3ccSAndroid Build Coastguard Workerinclude("${AOM_ROOT}/build/cmake/compiler_flags.cmake") 21*77c1e3ccSAndroid Build Coastguard Worker 22*77c1e3ccSAndroid Build Coastguard Workerstring(TOLOWER ${SANITIZE} SANITIZE) 23*77c1e3ccSAndroid Build Coastguard Worker 24*77c1e3ccSAndroid Build Coastguard Worker# Require the sanitizer requested. cfi sanitizer requires all the flags in order 25*77c1e3ccSAndroid Build Coastguard Worker# for the compiler to accept it. 26*77c1e3ccSAndroid Build Coastguard Workerif("${SANITIZE}" MATCHES "cfi" AND CMAKE_C_COMPILER_ID MATCHES "Clang") 27*77c1e3ccSAndroid Build Coastguard Worker require_linker_flag("-fsanitize=${SANITIZE} -flto -fno-sanitize-trap=cfi \ 28*77c1e3ccSAndroid Build Coastguard Worker -fuse-ld=gold" YES) 29*77c1e3ccSAndroid Build Coastguard Worker require_compiler_flag("-fsanitize=${SANITIZE} -flto -fvisibility=hidden \ 30*77c1e3ccSAndroid Build Coastguard Worker -fno-sanitize-trap=cfi" YES) 31*77c1e3ccSAndroid Build Coastguard Workerelse() 32*77c1e3ccSAndroid Build Coastguard Worker require_linker_flag("-fsanitize=${SANITIZE}") 33*77c1e3ccSAndroid Build Coastguard Worker require_compiler_flag("-fsanitize=${SANITIZE}" YES) 34*77c1e3ccSAndroid Build Coastguard Workerendif() 35*77c1e3ccSAndroid Build Coastguard Worker 36*77c1e3ccSAndroid Build Coastguard Worker# Make callstacks accurate. 37*77c1e3ccSAndroid Build Coastguard Workerrequire_compiler_flag("-fno-omit-frame-pointer -fno-optimize-sibling-calls" YES) 38*77c1e3ccSAndroid Build Coastguard Worker 39*77c1e3ccSAndroid Build Coastguard Worker# Fix link errors due to missing rt compiler lib in 32-bit builds. 40*77c1e3ccSAndroid Build Coastguard Worker# http://llvm.org/bugs/show_bug.cgi?id=17693 41*77c1e3ccSAndroid Build Coastguard Workerif(CMAKE_C_COMPILER_ID MATCHES "Clang") 42*77c1e3ccSAndroid Build Coastguard Worker if(${CMAKE_SIZEOF_VOID_P} EQUAL 4 43*77c1e3ccSAndroid Build Coastguard Worker AND "${SANITIZE}" MATCHES "integer|undefined") 44*77c1e3ccSAndroid Build Coastguard Worker require_linker_flag("--rtlib=compiler-rt -lgcc_s") 45*77c1e3ccSAndroid Build Coastguard Worker endif() 46*77c1e3ccSAndroid Build Coastguard Workerendif() 47