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cmake: enable AddressSanitizer in Debug builds if supported

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This commit is contained in:
Christian Rauch 2021-02-01 20:25:24 -08:00
parent fadfa51022
commit 42798cec8b
1 changed files with 51 additions and 0 deletions
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51
CMakeLists.txt
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@ -34,6 +34,7 @@ include(CheckSymbolExists)
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckTypeSize)
include(CheckStructHasMember)
include(CMakeDependentOption)
@ -2323,6 +2324,56 @@ if(SDL_STATIC)
endif()
endif()
macro(asan_check_add_debug_flag ASAN_FLAG)
set(FLAG "-fsanitize=${ASAN_FLAG}")
check_c_compiler_flag(${FLAG} HAS_C_FLAG_${ASAN_FLAG})
if (HAS_C_FLAG_${ASAN_FLAG})
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${FLAG}")
endif()
check_cxx_compiler_flag("${FLAG}" HAS_CXX_${ASAN_FLAG})
if (HAS_CXX_${ASAN_FLAG})
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${FLAG}")
endif()
endmacro()
macro(asan_check_add_debug_flag2 ASAN_FLAG)
# for some sanitize flags we have to manipulate the CMAKE_REQUIRED_LIBRARIES:
# http://cmake.3232098.n2.nabble.com/CHECK-CXX-COMPILER-FLAG-doesn-t-give-correct-result-for-fsanitize-address-tp7600216p7600217.html
set(FLAG "-fsanitize=${ASAN_FLAG}")
set (STORED_REQLIBS ${CMAKE_REQUIRED_LIBRARIES})
set (CMAKE_REQUIRED_LIBRARIES "${FLAG};asan")
check_c_compiler_flag (${FLAG} HAS_C_FLAG_${ASAN_FLAG})
check_cxx_compiler_flag (${FLAG} HAS_CXX_FLAG_${ASAN_FLAG})
set (CMAKE_REQUIRED_LIBRARIES ${STORED_REQLIBS})
if (HAS_C_FLAG_${ASAN_FLAG})
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} ${FLAG}")
endif()
if (HAS_CXX_${ASAN_FLAG})
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} ${FLAG}")
endif()
endmacro()
# enable AddressSanitizer if supported
asan_check_add_debug_flag2("address")
asan_check_add_debug_flag("bool")
asan_check_add_debug_flag("bounds")
asan_check_add_debug_flag("enum")
asan_check_add_debug_flag("float-cast-overflow")
asan_check_add_debug_flag("float-divide-by-zero")
asan_check_add_debug_flag("nonnull-attribute")
asan_check_add_debug_flag("returns-nonnull-attribute")
asan_check_add_debug_flag("signed-integer-overflow")
asan_check_add_debug_flag("undefined")
asan_check_add_debug_flag("vla-bound")
asan_check_add_debug_flag("leak")
asan_check_add_debug_flag("object-size")
##### Tests #####
if(SDL_TEST)