Re: [RFC PATCH v2 09/21] arm64: Add types to indirect called assembly functions

Kees Cook
2022-05-14T21:50:55Z

On Fri, May 13, 2022 at 01:21:47PM -0700, Sami Tolvanen wrote:
> With CONFIG_CFI_CLANG, assembly functions indirectly called from C
> code must be annotated with type identifiers to pass CFI checking. Use
> SYM_TYPED_FUNC_START for indirectly called functions.
>
> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

Sort of related to my question about SYM_TYPED_FUNC_START itself, how
were these cases identified?

Reviewed-by: Kees Cook <keescook@chromium.org>

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Kees Cook