From owner-svn-src-head@freebsd.org Fri May 4 22:33:55 2018 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id E347FFBA23A; Fri, 4 May 2018 22:33:54 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 9A3A57DED9; Fri, 4 May 2018 22:33:54 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 94DE0150F2; Fri, 4 May 2018 22:33:54 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id w44MXs2w089193; Fri, 4 May 2018 22:33:54 GMT (envelope-from mjg@FreeBSD.org) Received: (from mjg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id w44MXsC7089190; Fri, 4 May 2018 22:33:54 GMT (envelope-from mjg@FreeBSD.org) Message-Id: <201805042233.w44MXsC7089190@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mjg set sender to mjg@FreeBSD.org using -f From: Mateusz Guzik Date: Fri, 4 May 2018 22:33:54 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r333265 - head/sys/sys X-SVN-Group: head X-SVN-Commit-Author: mjg X-SVN-Commit-Paths: head/sys/sys X-SVN-Commit-Revision: 333265 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 May 2018 22:33:55 -0000 Author: mjg Date: Fri May 4 22:33:54 2018 New Revision: 333265 URL: https://svnweb.freebsd.org/changeset/base/333265 Log: Allow the compiler to use __builtin_memcpy In particular this allows the compiler to avoid heavy-handed machinery if the to be copied buffer is small. Reviewed by: jhb Modified: head/sys/sys/systm.h head/sys/sys/zutil.h Modified: head/sys/sys/systm.h ============================================================================== --- head/sys/sys/systm.h Fri May 4 21:17:29 2018 (r333264) +++ head/sys/sys/systm.h Fri May 4 22:33:54 2018 (r333265) @@ -275,6 +275,7 @@ void bzero(void * _Nonnull buf, size_t len); void explicit_bzero(void * _Nonnull, size_t); void *memcpy(void * _Nonnull to, const void * _Nonnull from, size_t len); +#define memcpy(to, from, len) __builtin_memcpy(to, from, len) void *memmove(void * _Nonnull dest, const void * _Nonnull src, size_t n); int copystr(const void * _Nonnull __restrict kfaddr, Modified: head/sys/sys/zutil.h ============================================================================== --- head/sys/sys/zutil.h Fri May 4 21:17:29 2018 (r333264) +++ head/sys/sys/zutil.h Fri May 4 22:33:54 2018 (r333265) @@ -32,7 +32,6 @@ #include #include # define HAVE_MEMCPY -# define memcpy(d, s, n) bcopy((s), (d), (n)) # define memset(d, v, n) bzero((d), (n)) # define memcmp bcmp