diff options
Diffstat (limited to 'CMakeLists.txt')
| -rw-r--r-- | CMakeLists.txt | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 7fd5133bba7..1ea7c1df5bd 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -183,6 +183,8 @@ INCLUDE(check_compiler_flag) OPTION(WITH_ASAN "Enable address sanitizer" OFF) IF (WITH_ASAN AND NOT MSVC) + # this flag might be set by default on some OS + MY_CHECK_AND_SET_COMPILER_FLAG("-U_FORTIFY_SOURCE" DEBUG RELWITHDEBINFO) # gcc 4.8.1 and new versions of clang MY_CHECK_AND_SET_COMPILER_FLAG("-fsanitize=address -fPIC" DEBUG RELWITHDEBINFO) @@ -216,22 +218,22 @@ ENDIF() OPTION(WITH_UBSAN "Enable undefined behavior sanitizer" OFF) IF (WITH_UBSAN) - IF(SECURITY_HARDENED) - MESSAGE(FATAL_ERROR "WITH_UBSAN and SECURITY_HARDENED are mutually exclusive") - ENDIF() - MY_CHECK_AND_SET_COMPILER_FLAG("-fsanitize=undefined -fno-sanitize=alignment" DEBUG RELWITHDEBINFO) + MY_CHECK_AND_SET_COMPILER_FLAG("-fsanitize=undefined -fno-sanitize=alignment -U_FORTIFY_SOURCE" DEBUG RELWITHDEBINFO) ENDIF() IF(NOT WITH_TSAN) # enable security hardening features, like most distributions do # in our benchmarks that costs about ~1% of performance, depending on the load - IF(CMAKE_C_COMPILER_VERSION VERSION_LESS "4.6") + IF(CMAKE_C_COMPILER_VERSION VERSION_LESS "4.6" OR WITH_ASAN OR WITH_UBSAN) SET(security_default OFF) ELSE() SET(security_default ON) ENDIF() OPTION(SECURITY_HARDENED "Use security-enhancing compiler features (stack protector, relro, etc)" ${security_default}) IF(SECURITY_HARDENED) + IF(WITH_ASAN OR WITH_UBSAN) + MESSAGE(FATAL_ERROR "WITH_ASAN/WITH_UBSAN and SECURITY_HARDENED are mutually exclusive") + ENDIF() # security-enhancing flags MY_CHECK_AND_SET_COMPILER_FLAG("-pie -fPIC") MY_CHECK_AND_SET_COMPILER_FLAG("-Wl,-z,relro,-z,now") |