1# Copyright 2019 The libgav1 Authors 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15if(LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_) 16 return() 17endif() # LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_ 18set(LIBGAV1_CMAKE_LIBGAV1_SANITIZER_CMAKE_ 1) 19 20macro(libgav1_configure_sanitizer) 21 if(LIBGAV1_SANITIZE AND NOT MSVC) 22 if(CMAKE_CXX_COMPILER_ID MATCHES "Clang") 23 if(LIBGAV1_SANITIZE MATCHES "cfi") 24 list(APPEND LIBGAV1_CXX_FLAGS "-flto" "-fno-sanitize-trap=cfi") 25 list(APPEND LIBGAV1_EXE_LINKER_FLAGS "-flto" "-fno-sanitize-trap=cfi" 26 "-fuse-ld=gold") 27 endif() 28 29 if(${CMAKE_SIZEOF_VOID_P} EQUAL 4 30 AND LIBGAV1_SANITIZE MATCHES "integer|undefined") 31 list(APPEND LIBGAV1_EXE_LINKER_FLAGS "--rtlib=compiler-rt" "-lgcc_s") 32 endif() 33 endif() 34 35 list(APPEND LIBGAV1_CXX_FLAGS "-fsanitize=${LIBGAV1_SANITIZE}") 36 list(APPEND LIBGAV1_EXE_LINKER_FLAGS "-fsanitize=${LIBGAV1_SANITIZE}") 37 38 # Make sanitizer callstacks accurate. 39 list(APPEND LIBGAV1_CXX_FLAGS "-fno-omit-frame-pointer" 40 "-fno-optimize-sibling-calls") 41 42 # Check the linker flags first as they may be required in the compile check 43 # to avoid undefined symbols related to the sanitizer. 44 libgav1_test_exe_linker_flag(FLAG_LIST_VAR_NAME LIBGAV1_EXE_LINKER_FLAGS) 45 libgav1_test_cxx_flag(FLAG_LIST_VAR_NAMES LIBGAV1_CXX_FLAGS FLAG_REQUIRED) 46 endif() 47endmacro() 48