| Date | Thu, 3 Sep 2020 15:20:14 -0700 | From | Kees Cook <> | Subject | Re: [PATCH v2 12/28] kbuild: lto: limit inlining |
| |
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@google.com> > Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
-- Kees Cook
|