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Add -fno-sanitize=vptr for SANITIZE_UNDEFINED=ON

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The UndefinedBehaviorSanitizer includes the "vptr" check.  This
check, however, needs typeinfo for OCC::AccountManager because
otherwise its stub for FileManTest leads to undefined references
when linking.  Adding the -frtti flag to enable run-time typeinfo
did not solve the problem.  I do not know another solution, so this
commit disables the vptr check.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
This commit is contained in:
Stephan Beyer 2020-05-18 19:54:09 +02:00
parent 00574ef8b4
commit 7f598b181e
1 changed files with 8 additions and 2 deletions
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10
cmake/modules/SanitizerFlags.cmake
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@ -1,11 +1,16 @@
# Enable address sanitizer (gcc/clang only)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
set(SANITIZERS)
set(SANITIZER_EXTRA_FLAGS " -g")
macro(add_sanitizer_option variable flag help)
option(${variable} "Enable ${help}" OFF)
if(${variable})
list(APPEND SANITIZERS ${flag})
string(REPLACE ";" " " optional_args "${ARGN}")
if(optional_args)
string(APPEND SANITIZER_EXTRA_FLAGS " ${optional_args}")
endif()
endif()
mark_as_advanced(${variable})
endmacro()
@ -17,13 +22,14 @@ if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
add_sanitizer_option(SANITIZE_MEMORY "memory"
"MemorySanitizer (detects reads in uninitialized memory)")
add_sanitizer_option(SANITIZE_UNDEFINED "undefined"
"UndefinedBehaviorSanitizer (detects undefined behavior)")
"UndefinedBehaviorSanitizer (detects undefined behavior)"
"-fno-sanitize=vptr")
add_sanitizer_option(SANITIZE_THREAD "thread"
"ThreadSanitizer (detects data races)")
if(SANITIZERS)
string(REPLACE ";" "," SANITIZER_FLAGS "${SANITIZERS}")
set(SANITIZER_FLAGS "-fsanitize=${SANITIZER_FLAGS}")
set(SANITIZER_FLAGS "-fsanitize=${SANITIZER_FLAGS}${SANITIZER_EXTRA_FLAGS}")
string(APPEND CMAKE_CXX_FLAGS " ${SANITIZER_FLAGS}")
string(APPEND CMAKE_C_FLAGS " ${SANITIZER_FLAGS}")
string(APPEND CMAKE_EXE_LINKER_FLAGS " ${SANITIZER_FLAGS}")