[GitHub] [incubator-nuttx] no1wudi commented on a diff in pull request #6881: debug: Introduce portion of UBSan for arm/risc-v

[GitBox <gi...@apache.org>]

no1wudi commented on code in PR #6881:
URL: https://github.com/apache/incubator-nuttx/pull/6881#discussion_r950623250


##########
mm/Kconfig:
##########
@@ -191,6 +191,49 @@ config MM_KASAN
 		bugs in native code. After turn on this option, Please
 		add -fsanitize=kernel-address to CFLAGS/CXXFLAGS too.
 
+config MM_UBSAN
+	bool "Undefined Behavior Sanitizer"
+	default n
+	depends on ARCH_ARM || ARCH_RISCV
+	---help---
+		UBSan is a fast undefined behavior detector. UBSan modifies
+		the program at compile-time to catch various kinds of
+		undefined behavior during program execution
+
+if MM_UBSAN
+
+config MM_UBSAN_SHIFT

Review Comment:
   Enable full UBSan may lead to a huge image that is hard to run on real device, so I think it's better to let the user determine the check item.



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