arm64: implement function_nocfi

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With CONFIG_CFI_CLANG, the compiler replaces function addresses in
instrumented C code with jump table addresses. This change implements
the function_nocfi() macro, which returns the actual function address
instead.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210408182843.1754385-13-samitolvanen@google.com

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Sami Tolvanen 2021-04-08 11:28:37 -07:00 • committed by Kees Cook

parent 167d0da23f

commit 4ecfca8989

1 changed files with 16 additions and 0 deletions

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arch/arm64/include/asm/memory.h

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