[Pkg-samba-maint] Bug#1006863: tevent: reproducible-builds: build path embedded in various libraries

[Vagrant Cascadian]

On 2022-03-13, Andrew Bartlett wrote:
> On Sat, 2022-03-12 at 13:53 -0800, Vagrant Cascadian wrote:
>> Originally reported as https://bugs.debian.org/1006863 where I proposed
>> passing additional arguments via CFLAGS in the debian build system.
>> 
>> Attached is a proof of concept patch that works by adding the argument
>> to CFLAGS by patching the upstream buildsystem.
>> 
>> The patch is bit ugly in how it derives the top level source directory
>> and likely error-prone... a cleaner way of going about that would be
>> much appreciated!
>> 
>> It also requires gcc 8+ or clang 10+ ... making it detect weather the
>> argument was supported and only adding it conditionally might be
>> desireable.
>
> testflags=True should be doing that, the CI should help determine if
> that works for this option.

Excellent!


>> I am not too familiar with samba project processes, let me know if
>> there's a better place to send this!
>
> https://wiki.samba.org/index.php/Contribute shows how to open a Merge
> Request for samba.  Once you get a gitlab username let me know and you
> can skip to using our shared development repo for a full CI.

Ok, I've got:

  https://gitlab.com/vagrantc

I'll work on som e updated patches.

Should it be a merge request into the samba repository or tevent, or is
there a better place for it?


> conf.env.srcdir should get you the srcdir you need.

Yes, that worked well, thanks!


> I guess my main concern is once Samba is packaged etc, can we still get
> a full backtrace?  How does this interact with debug packages etc?

I think the short answer is yes, although it may require passing
arguments to the debugger:

   https://stackoverflow.com/questions/67191647/using-ffile-prefix-map-breaks-debugging

Both gdb and lldb allow you to set the path to the source code.


live well,
  vagrant
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