From d0f9562ee43a135b941715d9e5e607de88898aca Mon Sep 17 00:00:00 2001
From: Sami Tolvanen <samitolvanen@google.com>
Date: Thu, 8 Sep 2022 14:54:44 -0700
Subject: 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
---
 scripts/kallsyms.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'scripts/kallsyms.c')

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index f18e6dfc68c5..ccdf0c897f31 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -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
 	};
 
-- 
cgit