tree 23d1a7b49ecee44653278a2567f2ebf4ad382d45
parent 0a5b412891dfdc72eb86fcd640fe1296a4cfa9ae
author Sami Tolvanen <samitolvanen@google.com> 1617906512 -0700
committer Kees Cook <keescook@chromium.org> 1617923061 -0700

kallsyms: strip ThinLTO hashes from static functions

With CONFIG_CFI_CLANG and ThinLTO, Clang appends a hash to the names
of all static functions not marked __used. This can break userspace
tools that don't expect the function name to change, so strip out the
hash from the output.

Suggested-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210408182843.1754385-8-samitolvanen@google.com