From 271e8b8adce75db9ebd5c23bbec57c186d5b7956 Mon Sep 17 00:00:00 2001
From: Fabio Arnold <fabioarnold@me.com>
Date: Sat, 21 Mar 2026 11:32:50 +0100
Subject: [PATCH] CMake: add option for sanitizers

---
 CMakeLists.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a00879fe..d0e99edf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,6 +76,14 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
 set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO ON)
 
+option(ENABLE_SANITIZERS "Enable AddressSanitizer and UndefinedBehaviorSanitizer" OFF)
+if (ENABLE_SANITIZERS)
+	add_compile_options(-fsanitize=address,undefined -fno-sanitize=vptr -fno-omit-frame-pointer)
+	add_link_options(-fsanitize=address,undefined -fno-sanitize=vptr)
+	# metal-cpp headers are incompatible with ASan/UBSan (Protocol ambiguity in objc/runtime.h)
+	add_compile_options($<$<COMPILE_LANGUAGE:OBJCXX>:-fno-sanitize=address,undefined>)
+endif()
+
 if (MSVC)
 	set_property(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT CemuBin)
 	# floating point model: precise, fiber safe optimizations