Date: Thu, 16 Aug 2018 12:44:11 -0700 From: Bryan Drewery <bdrewery@FreeBSD.org> To: Larry Rosenman <ler@lerctr.org>, Charlie Li <ml@vishwin.info> Cc: current@freebsd.org Subject: Re: /usr/bin/ld: error: undefined symbol: main [r337834 -> r337903] Message-ID: <1ce1779f-5fae-0ffe-83f7-11adf85c5cc6@FreeBSD.org> In-Reply-To: <20180816165337.n4uxpkbpn52mewfa@ler-imac.local> References: <20180816111532.GY1190@albert.catwhisker.org> <CAGMYy3tJk7iKM89K8j-57YbRAUu7UqOysPGXNP92-uT5XroM3A@mail.gmail.com> <1534436769.312158.1476422048.77F4DB62@webmail.messagingengine.com> <d1c8c48c-333e-f3a6-1105-ba74a0a43719@vishwin.info> <20180816165337.n4uxpkbpn52mewfa@ler-imac.local>
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On 8/16/18 9:53 AM, Larry Rosenman wrote: > On Thu, Aug 16, 2018 at 12:43:42PM -0400, Charlie Li wrote: >> On 16/08/2018 12:26, Brad Davis wrote: >>> On Thu, Aug 16, 2018, at 10:13 AM, Xin LI wrote: >>>> This was caused by r337852, but I didn't investigated further. >>>> >>>> The problem is that we have a source file called 'moduli.c' in >>>> crypto/openssh/ while the build target was moduli, and bmake seen >>>> 'moduli' in source tree as older than moduli.c, and decided to rebuild >>>> it from source, while the two files are unrelated. >>> >>> Hi Xin, >>> >>> I don't see how that could be the case as I didn't move the file around, I just moved how it gets installed. >>> >>> I have done many many builds with this change in and haven't seen this problem.. >>> >> I've found this one intermittent at best. I'll run a buildworld on >> anything newer than r337852, get the linker error, update to even the >> next newer revision that changes completely unrelated files, build >> succeeds. Case in point, r337835 to r337863 failed, but r337863 to >> r337865 succeeded. >> >> This is all with META_MODE, so could be a bug with that. > I've seen the same thing with meta-mode. A svn up after the failure > restores the missing moduli file, and a re-run will succeed. > > borg.lerctr.org /usr/src $ sudo svn up > Updating '.': > Restored 'crypto/openssh/moduli' > At revision 337914. > borg.lerctr.org /usr/src $ > > FYI it's not META_MODE related. It happens with a clean build as long as the moduli timestamp is old enough. > ~/git/freebsd/secure/usr.sbin/sshd # make buildconfig -dmM MK_META_MODE=no > Make_ExpandUse: examine buildconfig > MakeAddChild: need to examine moduli > MakeAddChild: need to examine sshd_config > Make_ExpandUse: examine moduli > MakeAddChild: need to examine moduli.c > Make_ExpandUse: examine sshd_config > Make_ExpandUse: examine moduli.c > Examining moduli.c...modified 7:59:30 Jun 07, 2018...up-to-date. > Examining moduli...modified 0:00:00 Nov 30, 2017...modified before source /root/git/freebsd/crypto/openssh/moduli.c...out-of-date. > cc -O2 -pipe -I/root/git/freebsd/crypto/openssh -include ssh_namespace.h -DHAVE_LDNS=1 -DUSE_BSM_AUDIT=1 -DHAVE_GETAUDIT_ADDR=1 -DUSE_BLACKLIST=1 -I/root/git/freebsd/contrib/blacklist/include -include > krb5_config.h -DLIBWRAP=1 -DXAUTH_PATH=\"/usr/local/bin/xauth\" -g -std=gnu99 -fstack-protector-strong -Wno-pointer-sign -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-tautologic > al-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef -Wno-address-of-packed-member -Wno-switch -Wno-switch-enum -Wno-knr-promoted-pa > rameter -Wno-parentheses -fcolor-diagnostics -Qunused-arguments -L/scratch/obj/root/git/freebsd/amd64.amd64/lib/libblacklist /root/git/freebsd/crypto/openssh/moduli.c -o /root/git/freebsd/crypto/op > enssh/moduli > /usr/bin/ld: error: undefined symbol: main -- Regards, Bryan Drewery
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