From owner-svn-src-head@freebsd.org Tue Apr 7 15:32:08 2020 Return-Path: Delivered-To: svn-src-head@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 E0F5F27272D; Tue, 7 Apr 2020 15:32:08 +0000 (UTC) (envelope-from brooks@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 48xWc85jLlz3KjY; Tue, 7 Apr 2020 15:32:08 +0000 (UTC) (envelope-from brooks@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 BF4B9BEEE; Tue, 7 Apr 2020 15:32:08 +0000 (UTC) (envelope-from brooks@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 037FW8VH009205; Tue, 7 Apr 2020 15:32:08 GMT (envelope-from brooks@FreeBSD.org) Received: (from brooks@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 037FW8UD009204; Tue, 7 Apr 2020 15:32:08 GMT (envelope-from brooks@FreeBSD.org) Message-Id: <202004071532.037FW8UD009204@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: brooks set sender to brooks@FreeBSD.org using -f From: Brooks Davis Date: Tue, 7 Apr 2020 15:32:08 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r359691 - head/sys/conf X-SVN-Group: head X-SVN-Commit-Author: brooks X-SVN-Commit-Paths: head/sys/conf X-SVN-Commit-Revision: 359691 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: 2.1.29 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, 07 Apr 2020 15:32:08 -0000 Author: brooks Date: Tue Apr 7 15:32:08 2020 New Revision: 359691 URL: https://svnweb.freebsd.org/changeset/base/359691 Log: Allow the kernel to build with a compiler that sets -fno-common. The mechanism that generates assym.inc and offset.inc depends on the symbols in question being common. For now, simply force the object files to be created with -fcommon. -fno-common will be the default in GCC10/LLVM11. Submitted by: arichardson Reviewed by: kevans Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24322 Modified: head/sys/conf/kern.post.mk Modified: head/sys/conf/kern.post.mk ============================================================================== --- head/sys/conf/kern.post.mk Tue Apr 7 15:10:04 2020 (r359690) +++ head/sys/conf/kern.post.mk Tue Apr 7 15:32:08 2020 (r359691) @@ -235,20 +235,20 @@ offset.inc: $S/kern/genoffset.sh genoffset.o NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genoffset.sh genoffset.o > ${.TARGET} genoffset.o: $S/kern/genoffset.c - ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/kern/genoffset.c + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/kern/genoffset.c # genoffset_test.o is not actually used for anything - the point of compiling it # is to exercise the CTASSERT that checks that the offsets in the offset.inc # _lite struct(s) match those in the original(s). genoffset_test.o: $S/kern/genoffset.c offset.inc - ${CC} -c ${CFLAGS:N-flto:N-fno-common} -DOFFSET_TEST \ + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon -DOFFSET_TEST \ $S/kern/genoffset.c -o ${.TARGET} assym.inc: $S/kern/genassym.sh genassym.o genoffset_test.o NM='${NM}' NMFLAGS='${NMFLAGS}' sh $S/kern/genassym.sh genassym.o > ${.TARGET} genassym.o: $S/$M/$M/genassym.c offset.inc - ${CC} -c ${CFLAGS:N-flto:N-fno-common} $S/$M/$M/genassym.c + ${CC} -c ${CFLAGS:N-flto:N-fno-common} -fcommon $S/$M/$M/genassym.c OBJS_DEPEND_GUESS+= opt_global.h genoffset.o genassym.o vers.o: opt_global.h