From owner-svn-src-head@freebsd.org Tue Jun 4 18:29:09 2019 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 7F72115B9EC3; Tue, 4 Jun 2019 18:29:09 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 236FE7781A; Tue, 4 Jun 2019 18:29:09 +0000 (UTC) (envelope-from markj@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 01097214FC; Tue, 4 Jun 2019 18:29:09 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x54IT81x030082; Tue, 4 Jun 2019 18:29:08 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x54IT8bb030081; Tue, 4 Jun 2019 18:29:08 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201906041829.x54IT8bb030081@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Tue, 4 Jun 2019 18:29:08 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r348654 - head/contrib/elftoolchain/elfcopy X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: head/contrib/elftoolchain/elfcopy X-SVN-Commit-Revision: 348654 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 236FE7781A X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; NEURAL_HAM_SHORT(-0.96)[-0.960,0]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 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: Tue, 04 Jun 2019 18:29:09 -0000 Author: markj Date: Tue Jun 4 18:29:08 2019 New Revision: 348654 URL: https://svnweb.freebsd.org/changeset/base/348654 Log: elfcopy: Use elf_getscn() instead of iterating over all sections. When removing a section, we would loop over all sections looking for a corresponding relocation section. With r348652 it is much faster to just use elf_getscn(). PR: 234949 Reviewed by: emaste MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D20471 Modified: head/contrib/elftoolchain/elfcopy/sections.c Modified: head/contrib/elftoolchain/elfcopy/sections.c ============================================================================== --- head/contrib/elftoolchain/elfcopy/sections.c Tue Jun 4 18:26:42 2019 (r348653) +++ head/contrib/elftoolchain/elfcopy/sections.c Tue Jun 4 18:29:08 2019 (r348654) @@ -119,21 +119,19 @@ is_remove_reloc_sec(struct elfcopy *ecp, uint32_t sh_i errx(EXIT_FAILURE, "elf_getshstrndx failed: %s", elf_errmsg(-1)); - is = NULL; - while ((is = elf_nextscn(ecp->ein, is)) != NULL) { - if (sh_info == elf_ndxscn(is)) { - if (gelf_getshdr(is, &ish) == NULL) - errx(EXIT_FAILURE, "gelf_getshdr failed: %s", - elf_errmsg(-1)); - if ((name = elf_strptr(ecp->ein, indx, ish.sh_name)) == - NULL) - errx(EXIT_FAILURE, "elf_strptr failed: %s", - elf_errmsg(-1)); - if (is_remove_section(ecp, name)) - return (1); - else - return (0); - } + is = elf_getscn(ecp->ein, sh_info); + if (is != NULL) { + if (gelf_getshdr(is, &ish) == NULL) + errx(EXIT_FAILURE, "gelf_getshdr failed: %s", + elf_errmsg(-1)); + if ((name = elf_strptr(ecp->ein, indx, ish.sh_name)) == + NULL) + errx(EXIT_FAILURE, "elf_strptr failed: %s", + elf_errmsg(-1)); + if (is_remove_section(ecp, name)) + return (1); + else + return (0); } elferr = elf_errno(); if (elferr != 0)