On Thu, Sep 03, 2020 at 01:30:37PM -0700, Sami Tolvanen wrote: > This change limits function inlining across translation unit boundaries > in order to reduce the binary size with LTO. The -import-instr-limit > flag defines a size limit, as the number of LLVM IR instructions, for > importing functions from other TUs, defaulting to 100. > > Based on testing with arm64 defconfig, we found that a limit of 5 is a > reasonable compromise between performance and binary size, reducing the > size of a stripped vmlinux by 11%. > > Suggested-by: George Burgess IV <gbiv@xxxxxxxxxx> > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx> -- Kees Cook
