Date: Mon, 29 Aug 2016 11:10:15 -0700 From: "Ngie Cooper (yaneurabeya)" <yaneurabeya@gmail.com> To: Bryan Drewery <bdrewery@FreeBSD.org> Cc: Li-Wen Hsu <lwhsu@FreeBSD.org>, "jenkins-admin@freebsd.org" <jenkins-admin@freebsd.org>, "freebsd-testing@freebsd.org" <freebsd-testing@freebsd.org>, Dimitry Andric <dim@FreeBSD.org> Subject: Re: Jenkins build is still unstable: FreeBSD_HEAD #564 Message-ID: <3B60A57F-778C-4E7C-B081-098C0F6E92D2@gmail.com> In-Reply-To: <B014DD06-4BB2-4503-8908-C78EFEE0FCA2@gmail.com> References: <1491374121.44.1472440150670.JavaMail.jenkins@jenkins-9.freebsd.org> <166099893.51.1472451061454.JavaMail.jenkins@jenkins-9.freebsd.org> <CAG=rPVdZp171Egp=OHWDc3qCgcJDE3HQ0rv-j=i%2BO1LHcfH%2BJQ@mail.gmail.com> <CFA236ED-7DE0-4BE1-B944-52284E2FB6E0@FreeBSD.org> <6E443BB8-0269-4812-A2F4-40AA303E69C6@FreeBSD.org> <CAG=rPVdfgoF0mts-edHATUaefD7YuGtNu5ZTJOa8efUn2W4QuA@mail.gmail.com> <8058052E-A09A-403E-828A-74B51ED4BBF4@FreeBSD.org> <20160829163911.GA51650@FreeBSD.cs.nctu.edu.tw> <E73154DF-6A88-457D-B1FF-6B7F7610C37F@FreeBSD.org> <4b8980f0-1a90-40d7-45b3-9569b321d1c6@FreeBSD.org> <20160829175247.GA10263@FreeBSD.cs.nctu.edu.tw> <CAA41D00-2451-42EC-B9FD-3E31F42F9CF6@gmail.com> <31f11ba3-ca29-0f85-f1c1-6a3cd467bb57@FreeBSD.org> <67E84707-3267-49F3-8DB6-13CBD05B1690@gmail.com> <B014DD06-4BB2-4503-8908-C78EFEE0FCA2@gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
--Apple-Mail=_29A52004-7276-4550-8B34-84659516B07E
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
charset=utf-8
> On Aug 29, 2016, at 11:04, Ngie Cooper (yaneurabeya) =
<yaneurabeya@gmail.com> wrote:
>=20
>>=20
>> On Aug 29, 2016, at 11:02, Ngie Cooper (yaneurabeya) =
<yaneurabeya@gmail.com> wrote:
>>=20
>>>=20
>>> On Aug 29, 2016, at 11:00, Bryan Drewery <bdrewery@FreeBSD.org> =
wrote:
>>>=20
>>> On 8/29/2016 10:58 AM, Ngie Cooper (yaneurabeya) wrote:
>>>> (-bdrewery)
>>>>=20
>>>>> On Aug 29, 2016, at 10:52, Li-Wen Hsu <lwhsu@FreeBSD.org> wrote:
>>>>>=20
>>>>> I guess the quickest way is boot that VM, cd to
>>>>> /usr/tests/lib/atf/libatf-c++ and run `kyua test atf_c++_test`
>>>>> However I am not sure this provides enough information because =
stuff
>>>>> under /usr/tests/lib/atf/libatf-c++ are all binary files.
>>>>>=20
>>>>> FWIW, I would like to know, should these -target, --sysroot and -B =
flages be
>>>>> given when compiling a normal program in a normal time? In this =
test
>>>>> case, kyua just wanted to compile test.cpp which includes sstream, =
it's
>>>>> not during buildworld/buildkernel time, so files under /usr/obj
>>>>> should not be used.
>>>>=20
>>>> I=E2=80=99m actively working on this right now. If I can=E2=80=99t =
resolve it soon, I=E2=80=99ll file a bug, mark it as an expected =
failure, and we can work on fixing the issue with a bit more leisure.
>>>>=20
>>>> It=E2=80=99s not a cross-compiler problem =E2=80=94 something =
changed recently (likely in clang/libc++) that=E2=80=99s causing this =
problem, and it might just be an existing bug that was triggered by that =
change..
>>>>=20
>>>=20
>>> What changed recently is that buildworld now always uses --sysroot =
for
>>> Clang, and --sysroot,-isystem,-B,-L for GCC.
>>=20
>> Ok. I=E2=80=99m not fully convinced that that=E2=80=99s the problem =
yet. Will drill down into the issue in the next half hour and will post =
a bug with my findings.
>=20
> Oh wait. Damn=E2=80=A6 I see the --sysroot line in the compilation =
output from the test. Crap=E2=80=A6 that=E2=80=99s not going to work.
Ok, found a likely culprit: =
lib/clang/include/clang/Config/config.h. DEFAULT_SYSROOT=E2=80=99s =
probably being stored in the compiler, somehow=E2=80=A6
Cheers,
-Ngie
24 /* Default <path> to all compiler invocations for --sysroot=3D<path>. =
*/
25 /* #undef DEFAULT_SYSROOT */
$ grep -r DEFAULT_SYSROOT lib/clang/
lib/clang/include/clang/Config/config.h:/* #undef DEFAULT_SYSROOT */
lib/clang/clang.build.mk: =
-DDEFAULT_SYSROOT=3D\"${TOOLS_PREFIX}\=E2=80=9D
$ cc -print-search-dirs
programs: =3D/usr/bin
libraries: =3D/usr/bin/../lib/clang/3.8.0:/usr/lib
--Apple-Mail=_29A52004-7276-4550-8B34-84659516B07E
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename=signature.asc
Content-Type: application/pgp-signature;
name=signature.asc
Content-Description: Message signed with OpenPGP using GPGMail
-----BEGIN PGP SIGNATURE-----
Comment: GPGTools - https://gpgtools.org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=cgVn
-----END PGP SIGNATURE-----
--Apple-Mail=_29A52004-7276-4550-8B34-84659516B07E--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3B60A57F-778C-4E7C-B081-098C0F6E92D2>