[PATCH v5 02/22] scripts/kallsyms: Ignore __kcfi_typeid_
From: Sami Tolvanen <samitolvanen@google.com>
Date: 2022-09-08 21:55:28
Also in:
linux-hardening, lkml, llvm
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> Tested-by: Kees Cook <redacted> Tested-by: Nathan Chancellor <nathan@kernel.org> --- scripts/kallsyms.c | 1 + 1 file changed, 1 insertion(+)
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 };
--
2.37.2.789.g6183377224-goog
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