Re: [PATCH v2 12/28] kbuild: lto: limit inlining
From: Kees Cook <hidden>
Date: 2020-09-03 22:20:24
Also in:
linux-arch, linux-kbuild, linux-pci, lkml
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 <redacted> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <redacted> -- Kees Cook _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel