Broken gcc dependencies

[marmarek]

Qubes OS version:

R4.0

---

Steps to reproduce the behavior:

sudo qubes-dom0-update --enablerepo=qubes*testing

Expected behavior:

Install updates, don't complain about dependencies.

Actual behavior:

Dependencies resolved.
========================================================================================
 Package        Arch          Version                    Repository                Size
========================================================================================
Skipping packages with conflicts:
(add '--best --allowerasing' to command line to force their upgrade):
 cpp            x86_64        6.4.1-1.qubes1.fc25        qubes-dom0-cached        9.0 M
 libgomp        x86_64        6.4.1-1.qubes1.fc25        qubes-dom0-cached        197 k

Transaction Summary
========================================================================================
Skip  2 Packages

General notes:

This is continuation of discussion here and here

Since the problem applies not only to qubes-builder (where we can employ some workarounds), we need a better solution.

[marmarek]

@HW42 What about building i686 gcc? Can we cross compile it using the same environment, from the same repository/spec? Do you know how upstream handle it?

[HW42]

@HW42 What about building i686 gcc? Can we cross compile it using the same environment, from the same repository/spec?

A simple setarch i686 rpmbuild --target=i686 failed with errors in some headers. But maybe just some missing dependencies.

Do you know how upstream handle it?

I guess they just have real i686 builders (probably running ob x86_64 capable hardware).

Anyway I looked at the libgcc content:

--- libgcc-6.4.1-1.fc25.x86_64
+++ libgcc-6.4.1-1.qubes1.fc25.x86_64
├── lib64
│ ├── libgcc_s-6.4.1-20170727.so.1
│ │ ├── readelf --wide --notes {}
│ │ │ @@ -1,11 +1,11 @@
│ │ │  
│ │ │  Displaying notes found in: .note.gnu.build-id
│ │ │    Owner                 Data size	Description
│ │ │ -  GNU                  0x00000014	NT_GNU_BUILD_ID (unique build ID bitstring)	    Build ID: 4523a29e2c5d4c4ae5cc4ffec27ad8c7cfce310b
│ │ │ +  GNU                  0x00000014	NT_GNU_BUILD_ID (unique build ID bitstring)	    Build ID: 16703f6d2d70b618fc62894c76ed4ec8d396be0d
│ │ │  
│ │ │  Displaying notes found in: .note.stapsdt
│ │ │    Owner                 Data size	Description
│ │ │    stapsdt              0x00000034	NT_STAPSDT (SystemTap probe descriptors)	    Provider: libgcc
│ │ │      Name: unwind
│ │ │      Location: 0x0000000000010190, Base: 0x0000000000013354, Semaphore: 0x0000000000000000
│ │ │      Arguments: 8@%rdi 8@%rsi
│ │ ├── readelf --wide --decompress --hex-dump=.gnu_debuglink {}
│ │ │ @@ -1,6 +1,6 @@
│ │ │  
│ │ │  Hex dump of section '.gnu_debuglink':
│ │ │    0x00000000 6c696267 63635f73 2d362e34 2e312d32 libgcc_s-6.4.1-2
│ │ │    0x00000010 30313730 3732372e 736f2e31 2e646562 0170727.so.1.deb
│ │ │ -  0x00000020 75670000 327915fb                   ug..2y..
│ │ │ +  0x00000020 75670000 8baf39f8                   ug....9.

No content change. So we can just use Fedora's libgcc and be done with it. See PR QubesOS/qubes-gcc#1. We can reconsider building for i686 should the need arise for other reasons.

[marmarek]

Ok, that worked. There is still "broken" libgcc-6.4.1-1.qubes1.fc25.x86_64 package in testing repository, but can be safely ignored since nothing depends on it. I'll remove it from there.

[awokd]

@andrewdavidwong / @marmarek Please reopen; based on testing described further in #3707 and a couple mailing list comments this does not appear to be resolved in qubes-builder although I see QubesOS/updates-status#442 is in stable.

Did a git pull in qubes-builder, followed by make dist-clean and rerunning ./setup. After many hours of gcc building, this is the output:

make[1]: Entering directory '/home/user/qubes-builder'
sudo chroot /home/user/qubes-builder/chroot-fc25 dnf install -y gcc-6.4.1-1.qubes1.fc25.x86_64 libgcc.x86_64
Qubes OS Builder Repository                      19 kB/s | 257  B     00:00    
No package gcc-6.4.1-1.qubes1.fc25.x86_64 available.
Package libgcc-6.4.1-1.fc25.x86_64 is already installed, skipping.
Error: Unable to find a match.
make[1]: *** [qubes-src/vmm-xen/Makefile.builder:27: workaround-gcc-upgrade-fc25] Error 1
make[1]: Leaving directory '/home/user/qubes-builder'
make: *** [Makefile:224: vmm-xen-dom0] Error 1

[awokd]

Verified my qubes-src/gcc/gcc.spec appears to have both commits applied:

Summary: Various compilers (C, C++, Objective-C, Java, ...)
Name: gcc
Version: %{gcc_version}
Release: %{gcc_release}.qubes2%{?dist}
%global release_non_qubes %{gcc_release}%{?dist}
# libgcc, libgfortran, libgomp, libstdc++ and crtstuff have
# GCC Runtime Exception.

[marmarek]

Looks like QubesOS/qubes-vmm-xen@b79f692 needs to be reverted. @awokd can you test it?

[awokd]

Yes, definitely. Is there a faster way that doesn't involve the 12 hour GCC rebuild?

[marmarek]

You don't need to rebuild gcc, just xen.

[awokd]

Backed out QubesOS/qubes-vmm-xen@b79f692 by hand, and make vmm-xen is now building instead of failing immediately. I'll kick off a full make qubes after this completes to make sure the rest of the process is good too, but that was probably it. Thanks!

[awokd]

Build and ISO completed successfully. Needed to specify WHONIX_TBB_VERSION as current is newer than template's default setting- will document separately.

[marmarek]

Thanks!

…

-- Best Regards, Marek Marczykowski-Górecki Invisible Things Lab A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?

[qubesos-bot]

Automated announcement from builder-github

The package xen_4.8.3-4+deb10u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing buster-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package xen_4.8.3-4+deb9u1 has been pushed to the r4.0 testing repository for the Debian template.
To test this update, first enable the testing repository in /etc/apt/sources.list.d/qubes-*.list by uncommenting the line containing stretch-testing (or appropriate equivalent for your template version), then use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component vmm-xen (including package python2-xen-4.8.3-4.fc26) has been pushed to the r4.0 testing repository for the Fedora template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package python2-xen-4.8.3-4.fc25 has been pushed to the r4.0 testing repository for dom0.
To test this update, please install it with the following command:

sudo qubes-dom0-update --enablerepo=qubes-dom0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package vmm-xen has been pushed to the r4.0 testing repository for the CentOS centos7 template.
To test this update, please install it with the following command:

sudo yum update --enablerepo=qubes-vm-r4.0-current-testing

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package vmm-xen has been pushed to the r4.0 stable repository for the Fedora centos7 template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The component vmm-xen (including package python2-xen-4.8.3-7.fc26) has been pushed to the r4.0 stable repository for the Fedora template.
To install this update, please use the standard update command:

sudo yum update

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package xen_2001:4.8.3-7+deb9u1 has been pushed to the r4.0 stable repository for the Debian template.
To install this update, please use the standard update command:

sudo apt-get update && sudo apt-get dist-upgrade

Changes included in this update

[qubesos-bot]

Automated announcement from builder-github

The package python2-xen-4.8.3-8.fc25 has been pushed to the r4.0 stable repository for dom0.
To install this update, please use the standard update command:

sudo qubes-dom0-update

Or update dom0 via Qubes Manager.

Changes included in this update