Add cmake flag -DWITH_SANITIZE_ADDRESS=on to enable GCC and clang AddressSanitizer

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 922b597..7178064 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -246,6 +246,30 @@ if(${CMAKE_C_COMPILER_ID} STREQUAL "Clang")
        endif()
 endif()
 
+# Enable address sanitizer, where supported and when required
+if(${CMAKE_C_COMPILER_ID} STREQUAL "Clang" OR CMAKE_COMPILER_IS_GNUCC)
+       if(WITH_SANITIZE_ADDRESS)
+               if (DEFINED CMAKE_REQUIRED_FLAGS)
+                       set(SAVE_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS})
+               endif()
+               set(CMAKE_REQUIRED_FLAGS "-fsanitize=address")
+               CHECK_C_COMPILER_FLAG ("-fsanitize=address" fsanitize-address)
+               if(fsanitize-address)
+                       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
+               endif()
+               if (DEFINED SAVE_CMAKE_REQUIRED_FLAGS)
+                       set(CMAKE_REQUIRED_FLAGS ${SAVE_CMAKE_REQUIRED_FLAGS})
+               else()
+                       unset(CMAKE_REQUIRED_FLAGS)
+               endif()
+
+               CHECK_C_COMPILER_FLAG ("-fno-omit-frame-pointer" fno-omit-frame-pointer)
+               if(fno-omit-frame-pointer)
+                       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-omit-frame-pointer")
+               endif()
+       endif()
+endif()
+
 if(MSVC)
        # Remove previous warning definitions,
        # NMake is otherwise complaining.