libxx: Add CXX_RTTI for enabling RTTI support for C++ applications

Signed-off-by: Gustavo Henrique Nihei <gustavo.nihei@espressif.com>

boards/sim/sim/sim/scripts/Make.defs

@@ -73,6 +73,9 @@ ARCHCXXFLAGS = -fno-common -ffunction-sections -fdata-sections -nostdinc++
 ifeq ($(CONFIG_CXX_EXCEPTION),)
   ARCHCXXFLAGS += -fno-exceptions -fcheck-new
 endif
+ifeq ($(CONFIG_CXX_RTTI),)
+  ARCHCXXFLAGS += -fno-rtti
+endif
 ARCHPICFLAGS = -fpic
 ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
 ARCHWARNINGSXX = -Wall -Wshadow -Wundef

libs/libxx/Kconfig

@@ -83,6 +83,9 @@ config HAVE_CXXINITIALIZE
 config CXX_EXCEPTION
 	bool "Enable Exception Support"
 
+config CXX_RTTI
+	bool "Enable RTTI Support"
+
 if UCLIBCXX
 
 config UCLIBCXX_BUFSIZE