From owner-svn-src-projects@freebsd.org Mon Sep 9 18:42:41 2019 Return-Path: Delivered-To: svn-src-projects@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BE06BDBC42 for ; Mon, 9 Sep 2019 18:42:41 +0000 (UTC) (envelope-from dim@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 46RxqP4bY9z4P9c; Mon, 9 Sep 2019 18:42:41 +0000 (UTC) (envelope-from dim@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 81BC219EA1; Mon, 9 Sep 2019 18:42:41 +0000 (UTC) (envelope-from dim@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x89Igfdk025884; Mon, 9 Sep 2019 18:42:41 GMT (envelope-from dim@FreeBSD.org) Received: (from dim@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x89IgfWV025883; Mon, 9 Sep 2019 18:42:41 GMT (envelope-from dim@FreeBSD.org) Message-Id: <201909091842.x89IgfWV025883@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: dim set sender to dim@FreeBSD.org using -f From: Dimitry Andric Date: Mon, 9 Sep 2019 18:42:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r352098 - projects/clang900-import/sys/conf X-SVN-Group: projects X-SVN-Commit-Author: dim X-SVN-Commit-Paths: projects/clang900-import/sys/conf X-SVN-Commit-Revision: 352098 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-projects@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the src " projects" tree" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Sep 2019 18:42:41 -0000 Author: dim Date: Mon Sep 9 18:42:41 2019 New Revision: 352098 URL: https://svnweb.freebsd.org/changeset/base/352098 Log: Use -znorelro for kernel modules, when they are linked as shared binaries (e.g. on any arch except amd64 and mips). Otherwise, with lld 9, after https://reviews.llvm.org/rLLD356117, the modules will get an additional PT_LOAD segment, which blows up kldxref, since that has a hardcoded limit of 3 segments. I could have alternatively bumped up that limit, but since kernel modules do not use relro, the simplest workaround is to explicitly disable it. Modified: projects/clang900-import/sys/conf/kmod.mk Modified: projects/clang900-import/sys/conf/kmod.mk ============================================================================== --- projects/clang900-import/sys/conf/kmod.mk Mon Sep 9 18:35:17 2019 (r352097) +++ projects/clang900-import/sys/conf/kmod.mk Mon Sep 9 18:42:41 2019 (r352098) @@ -230,7 +230,7 @@ ${PROG}.debug: ${FULLPROG} .if ${__KLD_SHARED} == yes ${FULLPROG}: ${KMOD}.kld - ${LD} -m ${LD_EMULATION} -Bshareable -znotext ${_LDFLAGS} \ + ${LD} -m ${LD_EMULATION} -Bshareable -znotext -znorelro ${_LDFLAGS} \ -o ${.TARGET} ${KMOD}.kld .if !defined(DEBUG_FLAGS) ${OBJCOPY} --strip-debug ${.TARGET}