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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - building cross-tools on OpenBSD results in crash"
   href="https://bugs.llvm.org/show_bug.cgi?id=42478">42478</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>building cross-tools on OpenBSD results in crash
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>8.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>OpenBSD
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Driver
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>k.lewandowski@me.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Created <span class=""><a href="attachment.cgi?id=22178" name="attach_22178" title="crash log excerpt">attachment 22178</a> <a href="attachment.cgi?id=22178&action=edit" title="crash log excerpt">[details]</a></span>
crash log excerpt

I thought it would be a good idea to rebuild cross-tools because of LLVM
version bump
but - with recent src - I'm unable to do so:
$ doas make -f Makefile.cross TARGET=${target} CROSSDIR="${destdir}"
cross-tools
fails with:
aarch64-unknown-openbsd6: error: unable to execute command: Segmentation fault
(core dumped)

With updated /etc/mk.conf:
DEBUG=-gline-tables-only
(I think it’s unused for clang but disables stripping during installation?)

and src/gnu/usr.bin/clang/Makefile.inc:
CPPFLAGS+=      -DNDEBUG -gline-tables-only
(I think it’s similar to what cmake RelWithDebugInfo does.)

I was eventually able to get debug symbols. More details in attached files.
I reproduced this crash on other machine.

If anyone would like to give it a quick try, then please just follow „Setup”
section from:
<a href="https://github.com/elewarr/openbsd-arm64-src-dev">https://github.com/elewarr/openbsd-arm64-src-dev</a></pre>
        </div>
      </p>


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