Fix sanitizer build

Task-number: QTBUG-64726
Change-Id: Ic88eed62e85ad1d95afcbd154c6556509e42bd47
Reviewed-by: Michal Klocek <michal.klocek@qt.io>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/core/config/common.pri b/src/core/config/common.pri
index d8a4fa181..d9dd7d7fd 100644
--- a/src/core/config/common.pri
+++ b/src/core/config/common.pri
@@ -62,3 +62,15 @@ CONFIG(debug, debug|release) {
 
 # Compiling with -Os makes a huge difference in binary size
 optimize_size: gn_args += optimize_for_size=true
+
+# We don't want to apply sanitizer options to the build tools (GN, dict convert, etc).
+!host_build {
+    sanitizer: gn_args += sanitizer_keep_symbols=true
+    sanitize_address: gn_args += is_asan=true
+    sanitize_thread: gn_args += is_tsan=true
+    sanitize_memory: gn_args += is_msan=true
+    # rtti is required for a specific check of ubsan, -fsanitize=vptr, which uses the runtime
+    # type information to check that correct derived objects are assigned to base pointers. Without
+    # rtti, linking would fail at build time.
+    sanitize_undefined: gn_args += is_ubsan=true use_rtti=true
+}