From owner-freebsd-ppc@freebsd.org Fri Jun 16 04:35:01 2017 Return-Path: Delivered-To: freebsd-ppc@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 2C443BF6250 for ; Fri, 16 Jun 2017 04:35:01 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-210-16.reflexion.net [208.70.210.16]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E464A6FBB6 for ; Fri, 16 Jun 2017 04:35:00 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 5049 invoked from network); 16 Jun 2017 04:39:00 -0000 Received: from unknown (HELO rtc-sm-01.app.dca.reflexion.local) (10.81.150.1) by 0 (rfx-qmail) with SMTP; 16 Jun 2017 04:39:00 -0000 Received: by rtc-sm-01.app.dca.reflexion.local (Reflexion email security v8.40.0) with SMTP; Fri, 16 Jun 2017 00:34:59 -0400 (EDT) Received: (qmail 30718 invoked from network); 16 Jun 2017 04:34:59 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (AES256-SHA encrypted) SMTP; 16 Jun 2017 04:34:59 -0000 Received: from [192.168.1.114] (c-76-115-7-162.hsd1.or.comcast.net [76.115.7.162]) by iron2.pdx.net (Postfix) with ESMTPSA id 92C05EC7B35; Thu, 15 Jun 2017 21:34:58 -0700 (PDT) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: -r319936 and -r319991 TARGET_ARCH=powerpc via clang: boot1.chrp/boot1.c:(.text+0x14b8): undefined reference to `__udivdi3' (boot1.o: In function `fsread_size') From: Mark Millard In-Reply-To: Date: Thu, 15 Jun 2017 21:34:58 -0700 Cc: FreeBSD PowerPC ML Content-Transfer-Encoding: quoted-printable Message-Id: <23CFE929-1A90-430E-A3E6-C9B56F642F8D@dsl-only.net> References: To: FreeBSD Toolchain X-Mailer: Apple Mail (2.3273) X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Jun 2017 04:35:01 -0000 [I should have listed more about my build context for clang.] On 2017-Jun-15, at 9:20 PM, Mark Millard wrote: > [A gcc 4.2.1 based buildworld buildkernel did not have this problem.] >=20 > On 2017-Jun-15, at 5:34 PM, Mark Millard = wrote: >=20 >> Context: amd64 -> powerpc cross build of -r319936 >> (one of my usual clang-based experiments): >>=20 >> --- all_subdir_sys --- >> Building = /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.= chrp/boot1.elf >> --- boot1.elf --- >> boot1.o: In function `fsread_size': >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x14b8): = undefined reference to `__udivdi3' >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x1508): = undefined reference to `__udivdi3' >> cc: error: linker command failed with exit code 1 (use -v to see = invocation) >> --- all_subdir_lib --- >> Building = /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/lib/msun/s_remquo.po >> --- all_subdir_sys --- >> *** [boot1.elf] Error code 1 >>=20 >> make[6]: stopped in /usr/src/sys/boot/powerpc/boot1.chrp >> .ERROR_TARGET=3D'boot1.elf' >> = .ERROR_META_FILE=3D'/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys= /boot/powerpc/boot1.chrp/boot1.elf.meta' >>=20 >>=20 >> # Meta data file = /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.= chrp/boot1.elf.meta >> CMD cc -target powerpc-unknown-freebsd12.0 = --sysroot=3D/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/tmp = -B/usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/tmp/usr/bin = -ffreestanding -msoft-float = -I/usr/src/sys/boot/powerpc/boot1.chrp/../../common = -I/usr/src/sys/boot/powerpc/boot1.chrp/../../../ -D_STANDALONE = -std=3Dgnu99 -Qunused-arguments -nostdlib -static -Wl,-N -o boot1.elf = boot1.o ashldi3.o syncicache.o =20 >> CWD = /usr/obj/powerpcvtsc_clang/powerpc.powerpc/usr/src/sys/boot/powerpc/boot1.= chrp >> TARGET boot1.elf >> -- command output -- >> boot1.o: In function `fsread_size': >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x14b8): = undefined reference to `__udivdi3' >> /usr/src/sys/boot/powerpc/boot1.chrp/boot1.c:(.text+0x1508): = undefined reference to `__udivdi3' >> cc: error: linker command failed with exit code 1 (use -v to see = invocation) >> *** Error code 1 >>=20 >> Note: This was -j16 for the build. >>=20 >> I updated /usr/src and amd64 to -r319991 and then >> retried cross building for powerpc: same result. >>=20 >>=20 >> Note: I'd frozen at -r317820 until this update. Back then >> I could buildworld and buildkernel via clang (although >> I could not boot the clang-based kernel and so had to >> build a gcc 4.2.1 based one and use it). >=20 > I tried a gcc 4.2.1 buildworld buildkernel and it > completed fine. >=20 > The __udivdi3 problem is clang toolchain specific. Clang based build-context details: # more = ~/sys_build_scripts.amd64-host/make_powerpcvtsc_nodebug_clang_bootstrap-am= d64-host.sh=20 kldload -n filemon && \ script = ~/sys_typescripts/typescript_make_powerpcvtsc_nodebug_clang_bootstrap-amd6= 4-host-$(date +%Y-%m-%d:%H:%M:%S) \ env __MAKE_CONF=3D"/root/src.configs/make.conf" SRCCONF=3D"/dev/null" = SRC_ENV_CONF=3D"/root/src.configs/src.conf.powerpc-clang-bootstrap.amd64-h= ost" \ WITH_META_MODE=3Dyes \ MAKEOBJDIRPREFIX=3D"/usr/obj/powerpcvtsc_clang" \ make $* # more /root/src.configs/src.conf.powerpc-clang-bootstrap.amd64-host TO_TYPE=3Dpowerpc # KERNCONF=3DGENERICvtsc-NODBG TARGET=3D${TO_TYPE} .if ${.MAKE.LEVEL} =3D=3D 0 TARGET_ARCH=3D${TO_TYPE} .export TARGET_ARCH .endif # WITH_CROSS_COMPILER=3D WITHOUT_SYSTEM_COMPILER=3D # WITH_LIBCPLUSPLUS=3D WITH_BINUTILS_BOOTSTRAP=3D WITH_ELFTOOLCHAIN_BOOTSTRAP=3D WITH_CLANG_BOOTSTRAP=3D WITH_CLANG=3D WITH_CLANG_IS_CC=3D WITH_CLANG_FULL=3D WITH_CLANG_EXTRAS=3D WITH_LLD=3D # lldb requires missing atomic 8-byte operations for powerpc (non-64) WITHOUT_LLDB=3D # WITH_BOOT=3D WITHOUT_LIB32=3D # WITHOUT_GCC_BOOTSTRAP=3D WITHOUT_GCC=3D WITHOUT_GCC_IS_CC=3D WITHOUT_GNUCXX=3D # NO_WERROR=3D # # Use WERROR to avoid stopping at the likes of: # error: implicit conversion from 'int' to 'int8_t' (aka 'signed char') = changes value from 128 to -128 [-Werror,-Wconstant-conversion] WERROR=3D MALLOC_PRODUCTION=3D # WITH_REPRODUCIBLE_BUILD=3D WITH_DEBUG_FILES=3D So the system binutils tools are in used. Even though I build lld, last I tried lld could not be used so it is not the linker used by the above. =3D=3D=3D Mark Millard markmi at dsl-only.net