Add a MemSan Cmake build type
Detects uninitialised memory reads. Available only with Clang on Linux x86_64
for now. Experimental but seems usable enough.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a2e60aa..1596226 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,11 +19,13 @@
set(CMAKE_C_FLAGS_DEBUG "-g3 -O0")
set(CMAKE_C_FLAGS_COVERAGE "-g3 -O0 --coverage")
set(CMAKE_C_FLAGS_ASAN "-fsanitize=address -fsanitize=undefined -fno-sanitize-recover -fno-omit-frame-pointer -g3 -O1 -Werror")
+ # note: can add -fsanitize-memory-track-origins=2 for debugging with memsan
+ set(CMAKE_C_FLAGS_MEMSAN "-fsanitize=memory -fno-omit-frame-pointer -fno-optimize-sibling-calls -g3 -O1 -Werror")
set(CMAKE_C_FLAGS_CHECK "-O1 -Werror")
endif(CMAKE_COMPILER_IS_CLANG)
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE}
- CACHE STRING "Choose the type of build: None Debug Release Coverage ASan Check CheckFull"
+ CACHE STRING "Choose the type of build: None Debug Release Coverage ASan MemSan Check CheckFull"
FORCE)
if(CMAKE_BUILD_TYPE STREQUAL "Coverage")
