<div dir="ltr"><div dir="ltr"></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 10, 2021 at 3:16 PM Dimitrios Chr. Ioannidis via fpc-devel <<a href="mailto:fpc-devel@lists.freepascal.org" target="_blank">fpc-devel@lists.freepascal.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p>Hi,<br>
</p>
<div>Στις 10/2/2021 2:25 μ.μ., ο/η Christo
Crause έγραψε:<br>
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<div dir="ltr">On Wed, Feb 10, 2021 at 12:47 PM Dimitrios Chr.
Ioannidis via fpc-devel <<a href="mailto:fpc-devel@lists.freepascal.org" target="_blank">fpc-devel@lists.freepascal.org</a>>
wrote:<br>
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<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
I read at compiler/systems/i_embed.pas the AVR
systeminfo, is the <br>
only one that, has as default "dbg : dbg_dwarf3". The other
embed <br>
systems that uses dwarf ( ARM, MIPSEL, i8086, m68k,
RISCV32/64, XTENSA, <br>
Z80 ), all have as default "dbg : dbg_dwarf2".<br>
<br>
The AVR has problems with dbg_dwarf2 ? If not, could you
please <br>
change the AVR systeminfo to dwarf2 also for consistency ?<br>
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<div>That was a fix for compiling controller units with lots
of symbols, refer to this discussion thread: <a href="https://www.mail-archive.com/fpc-devel@lists.freepascal.org/msg35416.html" target="_blank">https://www.mail-archive.com/fpc-devel@lists.freepascal.org/msg35416.html</a></div>
<div>Dwarf2 is fine in general, unless the address (I think
address in dwarf debug section, the details are a bit hazy
in my memory) of symbols exceed 65535. Dwarf3 offers a
larger data type for this scenario.</div>
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<p> I'm using ppcrossavr with systeminfo default "dbg : dbg_dwarf2"
with no problems. If I remember correctly, IMHO, fixing the issue
33914 ( <a href="https://bugs.freepascal.org/view.php?id=33914" target="_blank">https://bugs.freepascal.org/view.php?id=33914</a> ) had the
collateral effect to fixing also the above.</p>
<p> For test, I just debugged a physical atmega32u2 mcu with Lazarus
with no problems at all. Also for test, I builded an avr35 subarch
ppcrossavr and also debugged a physical atmega32u2 mcu with no
problems.</p></div></blockquote><div><br></div><div>You are probably right, I never checked if the pointer change of #33914 also fixed the original issue in the mailing list so the default dwarf version for AVR could be changed back to 2. But then Florian does have a point, why not make the default for all targets dwarf 3?<br></div></div></div>