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[RFC,v3,02/20] scripts/kallsyms: Ignore __kcfi_typeid_

Message ID 20220610233513.1798771-3-samitolvanen@google.com (mailing list archive)
State New, archived
Headers show
Series KCFI support | expand

Commit Message

Sami Tolvanen June 10, 2022, 11:34 p.m. UTC 
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>
---
 scripts/kallsyms.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

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
 	};