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<p>Hopefully the first issue has now been resolved, although it may
require refactoring later.</p>
<p><a class="moz-txt-link-freetext" href="https://gitlab.com/freepascal.org/fpc/source/-/merge_requests/691">https://gitlab.com/freepascal.org/fpc/source/-/merge_requests/691</a></p>
<p>The main issue is that, for some reason, trying to dereference
from a code section instead of a data section raises an access
violation, although I'm not sure if it's a permissions issue or a
subtle fault with the pointers. This may require refactoring
later on or if bugs manifest in larger projects.<br>
</p>
<p>Kit<br>
</p>
<div class="moz-cite-prefix">On 26/05/2024 21:33, J. Gareth Moreton
via fpc-devel wrote:<br>
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<p>Thank you for all your assistance with this Sven.</p>
<p>One trick I have been doing is writing equivalent programs in
C/C++ to see how Clang and MSVC convert them into equivalent
assembly language. It's providing some insights at least in
regards to what works. My first attempted fix (putting the jump
table in the same section as the actual code) unfortunately
didn't work, so it's something more subtle.<br>
</p>
<p>Kit<br>
</p>
<div class="moz-cite-prefix">On 26/05/2024 11:55, Sven Barth via
fpc-devel wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFMUeB_ROZohYh0ynwXZYzjWQaTK7nue9oO-Xd3Ra5JnNmTMew@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">J. Gareth Moreton via
fpc-devel <<a
href="mailto:fpc-devel@lists.freepascal.org"
moz-do-not-send="true" class="moz-txt-link-freetext">fpc-devel@lists.freepascal.org</a>>
schrieb am Sa., 25. Mai 2024, 22:18:<br>
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<p>Indeed - I'm not giving up! I installed Clang via
LLVM. Which of the EXE files is actually the
assembler? It's not entirely clear (no "clang-as",
for example). (Although I trust it works!)</p>
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<div dir="auto"><br>
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<div dir="auto">Simply check what FPC calls. ;) </div>
<div dir="auto"><br>
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<p>I've got some ideas as to how to start debugging.
I will solve this puzzle! </p>
</div>
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<div dir="auto">There is a tool that converts DWARF to
CodeView, you can use that to debug with WinDBG. </div>
<div dir="auto"><br>
</div>
<div dir="auto">Regards, </div>
<div dir="auto">Sven </div>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
fpc-devel maillist - <a class="moz-txt-link-abbreviated" href="mailto:fpc-devel@lists.freepascal.org">fpc-devel@lists.freepascal.org</a>
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