On Thu, Sep 03, 2020 at 01:30:35PM -0700, Sami Tolvanen wrote: > With CONFIG_MODVERSIONS, version information is linked into each > compilation unit that exports symbols. With LTO, we cannot use this > method as all C code is compiled into LLVM bitcode instead. This > change collects symbol versions into .symversions files and merges > them in link-vmlinux.sh where they are all linked into vmlinux.o at > the same time. > > Signed-off-by: Sami Tolvanen <samitolva...@google.com>
The only thought I have here is I wonder if this change could be made universally instead of gating on LTO? (i.e. is it noticeably slower to do it this way under non-LTO?) Reviewed-by: Kees Cook <keesc...@chromium.org> -- Kees Cook
