Commit d0f9562e authored Sep 08, 2022 by Sami Tolvanen Committed by Kees Cook Sep 26, 2022

scripts/kallsyms: Ignore __kcfi_typeid_



The compiler generates __kcfi_typeid_ symbols for annotating assembly
functions with type information. These are constants that can be
referenced in assembly code and are resolved by the linker. Ignore
them in kallsyms.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220908215504.3686827-3-samitolvanen@google.com

parent f143ff39

scripts/kallsyms.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -119,6 +119,7 @@ static bool is_ignored_symbol(const char *name, char type)
		"__ThumbV7PILongThunk_",
		"__LA25Thunk_", /* mips lld */
		"__microLA25Thunk_",
		"__kcfi_typeid_", /* CFI type identifiers */
		NULL
		};