From owner-svn-src-all@freebsd.org Mon Dec 3 19:55:56 2018 Return-Path: Delivered-To: svn-src-all@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 D712A1330E62; Mon, 3 Dec 2018 19:55:56 +0000 (UTC) (envelope-from kib@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 7A37B6B642; Mon, 3 Dec 2018 19:55:56 +0000 (UTC) (envelope-from kib@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 5B55B1A99F; Mon, 3 Dec 2018 19:55:56 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wB3Jtucp077688; Mon, 3 Dec 2018 19:55:56 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wB3JtuEr077687; Mon, 3 Dec 2018 19:55:56 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201812031955.wB3JtuEr077687@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Mon, 3 Dec 2018 19:55:56 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r341439 - head/libexec/rtld-elf X-SVN-Group: head X-SVN-Commit-Author: kib X-SVN-Commit-Paths: head/libexec/rtld-elf X-SVN-Commit-Revision: 341439 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 7A37B6B642 X-Spamd-Result: default: False [-0.27 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-0.38)[-0.376,0]; NEURAL_SPAM_SHORT(0.10)[0.097,0]; NEURAL_SPAM_LONG(0.00)[0.005,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 Dec 2018 19:55:57 -0000 Author: kib Date: Mon Dec 3 19:55:55 2018 New Revision: 341439 URL: https://svnweb.freebsd.org/changeset/base/341439 Log: Provide naive but self-contained implementations of memset(3) and bzero(3) for rtld. This again reduces rtld dependency on libc, and in future, avoid ifunc relocations when the functions are converted to ifuncs in libc. Reported by: mjg Reviewed by: emaste Sponsored by: The FreeBSD Foundation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D18400 Modified: head/libexec/rtld-elf/rtld.c Modified: head/libexec/rtld-elf/rtld.c ============================================================================== --- head/libexec/rtld-elf/rtld.c Mon Dec 3 19:35:21 2018 (r341438) +++ head/libexec/rtld-elf/rtld.c Mon Dec 3 19:55:55 2018 (r341439) @@ -5618,3 +5618,25 @@ rtld_strerror(int errnum) return ("Unknown error"); return (sys_errlist[errnum]); } + +/* + * No ifunc relocations. + */ +void * +memset(void *dest, int c, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) + ((char *)dest)[i] = c; + return (dest); +} + +void +bzero(void *dest, size_t len) +{ + size_t i; + + for (i = 0; i < len; i++) + ((char *)dest)[i] = 0; +}