Re: [PATCH 5/6] travis.yml: Update Travis to use Bionic and Focal instead of Xenial

[Thomas Huth]

On 22/09/2020 01.39, Cleber Rosa wrote:
> On Fri, Sep 18, 2020 at 12:34:29PM +0200, Thomas Huth wrote:
>> According to our support policy, we do not support Xenial anymore.
>> Time to switch the bigger parts of the builds to Focal instead.
>> Some few jobs have to be updated to Bionic instead, since they are
>> currently still failing on Focal otherwise. Also "--disable-pie" is
>> causing linker problems with newer versions of Ubuntu ... so remove
>> that switch from the jobs now (we still test it in a gitlab CI job,
>> so we don't lose much test coverage here).
>>
>> Signed-off-by: Thomas Huth <thuth@redhat.com>
>> ---
>>  .travis.yml | 24 +++++++++++++-----------
>>  1 file changed, 13 insertions(+), 11 deletions(-)
>>
>> diff --git a/.travis.yml b/.travis.yml
>> index 1fc49b0746..80da4ebc8e 100644
>> --- a/.travis.yml
>> +++ b/.travis.yml
>> @@ -2,7 +2,7 @@
>>  # Additional builds with specific requirements for a full VM need to
>>  # be added as additional matrix: entries later on
>>  os: linux
>> -dist: xenial
>> +dist: focal
>>  language: c
>>  compiler:
>>    - gcc
>> @@ -10,7 +10,7 @@ cache:
>>    # There is one cache per branch and compiler version.
>>    # characteristics of each job are used to identify the cache:
>>    # - OS name (currently only linux)
>> -  # - OS distribution (for Linux, xenial, trusty, or precise)
>> +  # - OS distribution (for Linux, bionic or focal)
>>    # - Names and values of visible environment variables set in .travis.yml 
>> or Settings panel
>>    timeout: 1200
>>    ccache: true
>> @@ -27,7 +27,7 @@ addons:
>>        - libattr1-dev
>>        - libbrlapi-dev
>>        - libcap-ng-dev
>> -      - libgcc-4.8-dev
>> +      - libgcc-7-dev
>>        - libgnutls28-dev
>>        - libgtk-3-dev
>>        - libiscsi-dev
>> @@ -211,8 +211,10 @@ jobs:
>>  
>>      # gprof/gcov are GCC features
>>      - name: "GCC gprof/gcov"
>> +      dist: bionic
>>        env:
>> -        - CONFIG="--enable-gprof --enable-gcov --disable-pie 
>> --target-list=${MAIN_SOFTMMU_TARGETS}"
>> +        - CONFIG="--enable-gprof --enable-gcov --disable-libssh
>> +                  --target-list=${MAIN_SOFTMMU_TARGETS}"
> 
> While the commit message describes the reason for dropping
> '--disable-pie', it doesn't talk about why it adds '--disable-libssh'.

Ah, well, right. I should have mentioned that... but we've hit that
problem in the past so often that my mind apparently sorted it into the
well-known category and did not came up with the idea that it would be
good to mention it ;-)

The problem is that libssh is very much broken in Bionic. Ubuntu
backported some patches into that version so that QEMU's configure
script thinks that it is a newer version, but they did not backport some
other important patches so that compilation later fails. Since it's
rather a bug in the distro and not in QEMU, we never "fixed" this issue,
so libssh can not be used in Bionic. See also:

 https://bugs.launchpad.net/qemu/+bug/1838763

> Reviewed-by: Cleber Rosa <crosa@redhat.com>
> Tested-by: Cleber Rosa <crosa@redhat.com>

 Thanks!
  Thomas