Received: (at 48907) by debbugs.gnu.org; 24 Sep 2021 14:14:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Sep 24 10:14:57 2021 Received: from localhost ([127.0.0.1]:58975 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1mTlyb-0006yS-52 for submit <at> debbugs.gnu.org; Fri, 24 Sep 2021 10:14:57 -0400 Received: from eggs.gnu.org ([209.51.188.92]:50096) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <ludo@HIDDEN>) id 1mTlyZ-0006yD-9q for 48907 <at> debbugs.gnu.org; Fri, 24 Sep 2021 10:14:55 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54734) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1mTlyU-0000Yl-5D; Fri, 24 Sep 2021 10:14:50 -0400 Received: from [2001:660:6102:320:e120:2c8f:8909:cdfe] (port=60464 helo=ribbon) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <ludo@HIDDEN>) id 1mTlyT-0004i7-Sv; Fri, 24 Sep 2021 10:14:50 -0400 From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN> To: Maxim Cournoyer <maxim.cournoyer@HIDDEN> Subject: Re: bug#48907: Grafts cause discrepancies in debug symbols file names (debug symbols missing in GDB). References: <87r1hdtu4t.fsf@HIDDEN> <87eeczikq5.fsf@HIDDEN> <87ilyqk8jg.fsf_-_@HIDDEN> Date: Fri, 24 Sep 2021 16:14:47 +0200 In-Reply-To: <87ilyqk8jg.fsf_-_@HIDDEN> (Maxim Cournoyer's message of "Thu, 23 Sep 2021 22:32:35 -0400") Message-ID: <87lf3mm560.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 48907 Cc: 48907 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) Hi, Maxim Cournoyer <maxim.cournoyer@HIDDEN> skribis: > Ludovic Court=C3=A8s <ludo@HIDDEN> writes: [...] >> This is due to the fact that, when you run =E2=80=98guix build jami-qt= =E2=80=99, the >> grafting derivation dismisses the =E2=80=9Cdebug=E2=80=9D output of qtde= clarative, since >> jami-qt does not depend on it. That way it doesn=E2=80=99t have to >> build/download and graft qtdeclarative:debug. [...] > Yikes! This means that debugging with grafts (with the aid of debugging > symbols) is no longer possible, right? It depends on whether the separate =E2=80=9Cdebug=E2=80=9D output gets graf= ted or not, but yeah, if a dependency tree has this shape (app -> lib + lib:debug), running =E2=80=98guix install app=E2=80=99 alone will prevent you from gett= ing debugging symbols from =E2=80=98lib:debug=E2=80=99 I believe. That sucks. I wonder if we should revert 482fda2729c3e76999892cb8f9a0391a7bd37119. It=E2=80=99s often not very helpful anyway (we often find ourselves downloa= ding unnecessary package outputs because of grafting). > I remember reading about a 2nd option to locate the separate debug > symbol files with GDB in info '(gdb) Separate Debug Files': > > > * The executable contains a "build ID", a unique bit string that is We=E2=80=99d have to check if this is applicable. Looking at the ld manual (info "(ld) Options"), it seems that the UUID =E2=80=9Cstyle=E2=80=9D is ru= led out because it=E2=80=99s non-deterministic, and the md5 and sha1 styles would require us to rewrite build IDs IIUC, similar to how we rewrite CRCs. Thanks, Ludo=E2=80=99.
bug-guix@HIDDEN:bug#48907; Package guix.
Full text available.Ludovic Courtès <ludo@HIDDEN>
to control <at> debbugs.gnu.org.
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@HIDDEN>
Subject: Re: bug#48907: Grafts cause discrepancies in debug symbols file
names (debug symbols missing in GDB).
References: <87r1hdtu4t.fsf@HIDDEN> <87eeczikq5.fsf@HIDDEN>
Date: Thu, 23 Sep 2021 22:32:35 -0400
In-Reply-To: <87eeczikq5.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
=?utf-8?Q?s?= message of "Fri, 18 Jun 2021 11:29:54 +0200")
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Hi!
Ludovic Court=C3=A8s <ludo@HIDDEN> writes:
> Hi,
>
> Maxim Cournoyer <maxim.cournoyer@HIDDEN> skribis:
>
>> $ guix build qtdeclarative | xargs -I{} find -L {} -name *libQt5Qml.so.5*
>> substitute: updating substitutes from 'http://127.0.0.1:8080'... 100.0%
>> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
>> The following files will be downloaded:
>> /gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug
>> /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2
>> substituting /gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5=
.15.2-debug...
>> downloading from https://ci.guix.gnu.org/nar/lzip/g1gxfbkyxilnx7s6mjdlj6=
97y5n5wazn-qtdeclarative-5.15.2-debug ...
>> qtdeclarative-5.15.2-debug 94.9MiB 1.2MiB/s=
01:21 [##################] 100.0%
>>
>> The following graft will be made:
>> /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarative-5.15.2.drv
>> applying 2 grafts for /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdecl=
arative-5.15.2.drv ...
>> grafting '/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15=
.2-debug' -> '/gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.1=
5.2-debug'...
>> grafting '/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15=
.2' -> '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2'...
>> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6n=
wnywf-qtdeclarative-5.15.2/bin/qml'
>> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6n=
wnywf-qtdeclarative-5.15.2/bin/q
>> [...]
>> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6n=
wnywf-qtdeclarative-5.15.2/lib/qt5/qml/QtQuick/Window.2/libwindowplugin.so'
>> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6n=
wnywf-qtdeclarative-5.15.2/lib/qt5/qml/QtTest/libqmltestplugin.so'
>> successfully built /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclara=
tive-5.15.2.drv
>> /gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.15.2-debug/l=
ib/debug/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/li=
b/libQt5Qml.so.5.15.2.debug
>> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/lib=
Qt5Qml.so.5.15.2
>> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/lib=
Qt5Qml.so.5
>> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/lib=
Qt5Qml.so.5.15
>>
>>
>> So far so good. The file hierarchy under the debug output matches the
>> actual shared library file name. Next, let's verify which qtdeclarative
>> shared libraries jami-qt is dynamically linked against:
>>
>> $ guix build jami-qt | tail -1 | xargs -I{} ldd {}/bin/.jami-qt-real | g=
rep qtdeclarative
>> libQt5QuickWidgets.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2=
j0a2vccs-qtdeclarative-5.15.2/lib/libQt5QuickWidgets.so.5 (0x00007fb9e38a80=
00)
>> libQt5Quick.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vcc=
s-qtdeclarative-5.15.2/lib/libQt5Quick.so.5 (0x00007fb9dba47000)
>> libQt5QmlModels.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a=
2vccs-qtdeclarative-5.15.2/lib/libQt5QmlModels.so.5 (0x00007fb9db9c3000)
>> libQt5Qml.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-=
qtdeclarative-5.15.2/lib/libQt5Qml.so.5 (0x00007fb9dae4e000)
>
> This is due to the fact that, when you run =E2=80=98guix build jami-qt=E2=
=80=99, the
> grafting derivation dismisses the =E2=80=9Cdebug=E2=80=9D output of qtdec=
larative, since
> jami-qt does not depend on it. That way it doesn=E2=80=99t have to
> build/download and graft qtdeclarative:debug.
>
> Conversely, when you run =E2=80=98guix build qtdeclarative=E2=80=99, it g=
rafts both
> outputs of qtdeclarative. Thus, this grafting derivation is different
> from the one jami-qt.drv depends on.
>
> This behavior was implemented in commit
> 482fda2729c3e76999892cb8f9a0391a7bd37119. Not sure what a good solution
> would be.
>
> Thoughts?
Yikes! This means that debugging with grafts (with the aid of debugging
symbols) is no longer possible, right?
I remember reading about a 2nd option to locate the separate debug
symbol files with GDB in info '(gdb) Separate Debug Files':
* The executable contains a "build ID", a unique bit string that is
also present in the corresponding debug info file. (This is
supported only on some operating systems, when using the ELF or PE
file formats for binary files and the GNU Binutils.) For more
details about this feature, see the description of the '--build-id'
command-line option in *note Command Line Options: (ld)Options.
The debug info file's name is not specified explicitly by the build
ID, but can be computed from the build ID, see below.
[...]
=20=20=20
* For the "build ID" method, GDB looks in the '.build-id'
subdirectory of each one of the global debug directories for a file
named 'NN/NNNNNNNN.debug', where NN are the first 2 hex characters
of the build ID bit string, and NNNNNNNN are the rest of the bit
string. (Real build ID strings are 32 or more hex characters, not
10.)
What may help us here, compared to debug links, is that it seems to be
file name agnostic; the debug files would be matched by an internal ID
that they got at build time rather than from their file names (which
doesn't work with the current different derivations in the presence of
grafts).
Perhaps it'd also lift the need to recompute the CRC checksum of the
debug links produced when grafting!
HTH!
Maxim
bug-guix@HIDDEN:bug#48907; Package guix.
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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
Subject: Re: bug#48907: Debug symbols file name discrepancies
References: <87r1hdtu4t.fsf@HIDDEN>
X-URL: http://www.fdn.fr/~lcourtes/
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Hi,
Maxim Cournoyer <maxim.cournoyer@HIDDEN> skribis:
> $ guix build qtdeclarative | xargs -I{} find -L {} -name *libQt5Qml.so.5*
> substitute: updating substitutes from 'http://127.0.0.1:8080'... 100.0%
> substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
> The following files will be downloaded:
> /gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug
> /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2
> substituting /gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.=
15.2-debug...
> downloading from https://ci.guix.gnu.org/nar/lzip/g1gxfbkyxilnx7s6mjdlj69=
7y5n5wazn-qtdeclarative-5.15.2-debug ...
> qtdeclarative-5.15.2-debug 94.9MiB 1.2MiB/s =
01:21 [##################] 100.0%
>
> The following graft will be made:
> /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarative-5.15.2.drv
> applying 2 grafts for /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdecla=
rative-5.15.2.drv ...
> grafting '/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.=
2-debug' -> '/gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.15=
.2-debug'...
> grafting '/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.=
2' -> '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2'...
> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nw=
nywf-qtdeclarative-5.15.2/bin/qml'
> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nw=
nywf-qtdeclarative-5.15.2/bin/q
> [...]
> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nw=
nywf-qtdeclarative-5.15.2/lib/qt5/qml/QtQuick/Window.2/libwindowplugin.so'
> updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nw=
nywf-qtdeclarative-5.15.2/lib/qt5/qml/QtTest/libqmltestplugin.so'
> successfully built /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarat=
ive-5.15.2.drv
> /gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.15.2-debug/li=
b/debug/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib=
/libQt5Qml.so.5.15.2.debug
> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQ=
t5Qml.so.5.15.2
> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQ=
t5Qml.so.5
> /gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQ=
t5Qml.so.5.15
>
>
> So far so good. The file hierarchy under the debug output matches the
> actual shared library file name. Next, let's verify which qtdeclarative
> shared libraries jami-qt is dynamically linked against:
>
> $ guix build jami-qt | tail -1 | xargs -I{} ldd {}/bin/.jami-qt-real | gr=
ep qtdeclarative
> libQt5QuickWidgets.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j=
0a2vccs-qtdeclarative-5.15.2/lib/libQt5QuickWidgets.so.5 (0x00007fb9e38a800=
0)
> libQt5Quick.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs=
-qtdeclarative-5.15.2/lib/libQt5Quick.so.5 (0x00007fb9dba47000)
> libQt5QmlModels.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2=
vccs-qtdeclarative-5.15.2/lib/libQt5QmlModels.so.5 (0x00007fb9db9c3000)
> libQt5Qml.so.5 =3D> /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-q=
tdeclarative-5.15.2/lib/libQt5Qml.so.5 (0x00007fb9dae4e000)
This is due to the fact that, when you run =E2=80=98guix build jami-qt=E2=
=80=99, the
grafting derivation dismisses the =E2=80=9Cdebug=E2=80=9D output of qtdecla=
rative, since
jami-qt does not depend on it. That way it doesn=E2=80=99t have to
build/download and graft qtdeclarative:debug.
Conversely, when you run =E2=80=98guix build qtdeclarative=E2=80=99, it gra=
fts both
outputs of qtdeclarative. Thus, this grafting derivation is different
from the one jami-qt.drv depends on.
This behavior was implemented in commit
482fda2729c3e76999892cb8f9a0391a7bd37119. Not sure what a good solution
would be.
Thoughts?
Ludo=E2=80=99.
bug-guix@HIDDEN:bug#48907; Package guix.
Full text available.Maxim Cournoyer <maxim.cournoyer@HIDDEN>
to control <at> debbugs.gnu.org.
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: 48907 <at> debbugs.gnu.org
Subject: Re: bug#48907: Debug symbols file name discrepancies
References: <87r1hdtu4t.fsf@HIDDEN>
Date: Mon, 07 Jun 2021 15:26:05 -0400
In-Reply-To: <87r1hdtu4t.fsf@HIDDEN> (Maxim Cournoyer's message of "Mon, 07
Jun 2021 14:19:30 -0400")
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Hello again,
Building everything without grafts does resolve the file name
discrepancy issue, e.g.:
guix build --no-grafts qtdeclarative | xargs -I{} find -L {} -name *libQt5Qml.so.5*
/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug/lib/debug/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2.debug
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2
guix build --no-grafts jami-qt | tail -1 | xargs -I{} ldd {}/bin/.jami-qt-real | grep qtdeclarative
libQt5QuickWidgets.so.5 => /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5QuickWidgets.so.5 (0x00007f42c79b2000)
libQt5Quick.so.5 => /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Quick.so.5 (0x00007f42bfb52000)
libQt5QmlModels.so.5 => /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5QmlModels.so.5 (0x00007f42bface000)
libQt5Qml.so.5 => /gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5 (0x00007f42bef59000)
And the debug symbols are now discovered and usable by GDB. So this
issue is indeed caused by grafts.
Maxim
bug-guix@HIDDEN:bug#48907; Package guix.
Full text available.
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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: bug-guix <bug-guix@HIDDEN>
Subject: Debug symbols file name discrepancies
Date: Mon, 07 Jun 2021 14:19:30 -0400
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Hello,
While attempting to debug a crash in jami-qt, I've noticed that GDB
would fail to load the symbol tables of the shared libraries it uses,
for example qtdeclarative.
It seems that grafts are to blame. Let's start by looking at the debug
files found for the qtdeclarative libQt5Qml.so.5 shared library:
--8<---------------cut here---------------start------------->8---
$ guix build qtdeclarative | xargs -I{} find -L {} -name *libQt5Qml.so.5*
substitute: updating substitutes from 'http://127.0.0.1:8080'... 100.0%
substitute: updating substitutes from 'https://ci.guix.gnu.org'... 100.0%
The following files will be downloaded:
/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2
substituting /gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug...
downloading from https://ci.guix.gnu.org/nar/lzip/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug ...
qtdeclarative-5.15.2-debug 94.9MiB 1.2MiB/s 01:21 [##################] 100.0%
The following graft will be made:
/gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarative-5.15.2.drv
applying 2 grafts for /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarative-5.15.2.drv ...
grafting '/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug' -> '/gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.15.2-debug'...
grafting '/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2' -> '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2'...
updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/bin/qml'
updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/bin/q
[...]
updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/qt5/qml/QtQuick/Window.2/libwindowplugin.so'
updating '.gnu_debuglink' CRC in '/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/qt5/qml/QtTest/libqmltestplugin.so'
successfully built /gnu/store/djhcai9rixm2j3jlamwdhsgwgidg7w74-qtdeclarative-5.15.2.drv
/gnu/store/l3h4ka7v3j1yhik0f1phwch08a09p0bx-qtdeclarative-5.15.2-debug/lib/debug/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2.debug
/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2
/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQt5Qml.so.5
/gnu/store/pryhgzb6cwnzsskqwldwc6dxr6nwnywf-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15
--8<---------------cut here---------------end--------------->8---
So far so good. The file hierarchy under the debug output matches the
actual shared library file name. Next, let's verify which qtdeclarative
shared libraries jami-qt is dynamically linked against:
--8<---------------cut here---------------start------------->8---
$ guix build jami-qt | tail -1 | xargs -I{} ldd {}/bin/.jami-qt-real | grep qtdeclarative
libQt5QuickWidgets.so.5 => /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-qtdeclarative-5.15.2/lib/libQt5QuickWidgets.so.5 (0x00007fb9e38a8000)
libQt5Quick.so.5 => /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-qtdeclarative-5.15.2/lib/libQt5Quick.so.5 (0x00007fb9dba47000)
libQt5QmlModels.so.5 => /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-qtdeclarative-5.15.2/lib/libQt5QmlModels.so.5 (0x00007fb9db9c3000)
libQt5Qml.so.5 => /gnu/store/mjl02yma4r5xjark6d8pp5h2j0a2vccs-qtdeclarative-5.15.2/lib/libQt5Qml.so.5 (0x00007fb9dae4e000)
--8<---------------cut here---------------end--------------->8---
Oops! The actual store file name of the libQt5Qml.so.5 known to jami-qt
is *not* the same as the one obtained earlier, which explains why GDB
doesn't find its symbols. Without grafts, the first command gives:
--8<---------------cut here---------------start------------->8---
$ guix build --no-grafts qtdeclarative | xargs -I{} find -L {} -name *libQt5Qml.so.5*
/gnu/store/g1gxfbkyxilnx7s6mjdlj697y5n5wazn-qtdeclarative-5.15.2-debug/lib/debug/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2.debug
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15
/gnu/store/nvzvrr137qfqsn2875yrs9ilfd12wi96-qtdeclarative-5.15.2/lib/libQt5Qml.so.5.15.2
--8<---------------cut here---------------end--------------->8---
Which still doesn't match the libraries jami-qt is linked with.
I'm out of ideas for now. Would someone have a clue?
Thank you!
Maxim
Maxim Cournoyer <maxim.cournoyer@HIDDEN>:bug-guix@HIDDEN.
Full text available.bug-guix@HIDDEN:bug#48907; Package guix.
Full text available.
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