Date: Tue, 26 Jun 2018 12:40:32 -0700 From: Kevin Oberman <rkoberman@gmail.com> To: Gary Jennejohn <gljennjohn@gmail.com> Cc: Bryan Drewery <bdrewery@freebsd.org>, current@freebsd.org Subject: Re: error building clang in HEAD Message-ID: <CAN6yY1u_oJSPfByBrQiBRK4JYPP7BTZZ-YGDqDthYX0tSmEM=g@mail.gmail.com> In-Reply-To: <20180626200013.247e7927@ernst.home> References: <20180623154048.1b228df0@ernst.home> <196E84B3-B58F-4296-B6EA-84D0DE3230EF@FreeBSD.org> <20180624095747.7384f5bf@ernst.home> <f21008b7-1da6-b9cf-8413-fa5a5667573a@FreeBSD.org> <20180626182412.49dce7b0@ernst.home> <20180626200013.247e7927@ernst.home>
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On Tue, Jun 26, 2018 at 11:00 AM, Gary Jennejohn <gljennjohn@gmail.com> wrote: > On Tue, 26 Jun 2018 18:24:12 +0200 > Gary Jennejohn <gljennjohn@gmail.com> wrote: > > > On Mon, 25 Jun 2018 11:28:18 -0700 > > Bryan Drewery <bdrewery@FreeBSD.org> wrote: > > > > > On 6/24/2018 12:57 AM, Gary Jennejohn wrote: > > > > On Sat, 23 Jun 2018 17:05:16 +0200 > > > > Dimitry Andric <dim@FreeBSD.org> wrote: > > > > > > > >> On 23 Jun 2018, at 15:40, Gary Jennejohn <gljennjohn@gmail.com> > wrote: > > > >>> > > > >>> There is a strange error building clang with this use case: > > > >>> > > > >>> cd /usr/src > > > >>> make -j10 makeworld > > > >> > > > >> What's the "makeworld" target? I've not heard of this. > > > >> > > > > > > > > A typo. I meant buildowrld. > > > > > > > >>> which produces this error output: > > > >>> > > > >>> ===> lib/clang/libclang (all) > > > >>> error: unable to rename temporary 'Sema/SemaTemplate-12ad7e30.o.tmp' > to output file 'Sema/SemaTemplate.o': 'No such file or directory' > > > >>> 1 error generated. > > > >>> --- Sema/SemaTemplate.o --- > > > >>> *** [Sema/SemaTemplate.o] Error code 1 > > > >> > > > >> This typically happens if "make obj" was not run before the rest of > the > > > >> make targets. Normally, the order is: make obj, then make depend, > then > > > >> make (a.k.a. make all). > > > >> > > > >> Is there a directory /usr/obj/usr/src/lib/libclang/Sema ? > > > >> > > > > > > > > Well, I would hope/expect that make buildworld does make obj. > > > > > > > > Yes, the directory was there. > > > > > > > > > > Actually neither 'make obj' nor 'make depend' is done or needed anymore > > > in buildworld. > > > > > > The directory above is incorrect, please check for > > > > > > /usr/obj/usr/src/amd64.amd64/lib/clang/libclang/Sema > > > > > > > Well, now everything is there because I ran a buildworld without -j. > > > > > Do you have another Makefile or script that is executing > > > buildworld for you? > > > > > > > No, I use a bash alias named mw: > > mw is aliased to `pushd /usr/src;time make -s -j$NCPU buildworld;popd' > > > > NCPU is defined as 10. > > > > > What's in your src.conf and make.conf? > > > > > > > The only changes I made recently were to /etc/src.conf when I added: > > > > WITHOUT_LLVM_TARGET_AARCH64=yes > > WITHOUT_LLVM_TARGET_ARM=ys > > WITHOUT_LLVM_TARGET_MIPS=yes > > WITHOUT_LLVM_TARGET_POWERPC=yes > > WITHOUT_LLVM_TARGET_SPARC=yes > > WITH_LLVM_TARGET_X86=yes > > > > Otherwise, I haven't touched src.conf or make.conf in a long time. > > > > I removed some old cruft from src.conf and now make -j10 buildworld is > succeeding, even after rm -rf /usr/obj/usr. > > Thanks for pointing me in the right direction. > > -- > Gary Jennejohn > I'd like to hear what triggered this as removing unneeded LLVM targets seems like a good idea if you know that you won't need them. Building LLVM takes a long time on my 7+ year old, memory constrained (8G) system. Anything that reduces that time would be nice. -- Kevin Oberman, Part time kid herder and retired Network Engineer E-mail: rkoberman@gmail.com PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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