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While i have no fruitful input regarding your question(s), just out
of curiosity: What ist the state of affairs for lldb on AIX?<br>
<br>
<div class="moz-cite-prefix">Am 26.03.2021 um 14:16 schrieb Zheng CZ
Chen via llvm-dev:<br>
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cite="mid:OFC2C7ECE0.AB4D5222-ON482586A4.0047F03E-482586A4.0048EFD8@notes.na.collabserv.com">
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<p><font color="#1D1C1D">Hi，</font><br>
<br>
<font color="#1D1C1D">As some of you may know [1]，we are working
on AIX support. Part of the AIX support is debug support,
supporting dbx as the consumer of clang DWARF information [2].</font><br>
<br>
<font color="#1D1C1D">While the dbx team is also working on
improving its dwarf support, there are limitations in
foreseeable future. Also there are situations on AIX that end
user may not get up to date debugger. </font><br>
<br>
<font color="#1D1C1D">So we are considering doing some
compatibly work in clang/llvm to help improving user
experience.</font><br>
<br>
<font color="#1D1C1D">There are some limitations in dbx we know
so far:</font><br>
</p>
<ul type="disc">
<li><font face="Monaco" color="#1D1C1D">.dwstr section is not
supported for now;</font></li>
<li><font face="Monaco" color="#1D1C1D">column-info in the line
table not supported for now;</font></li>
<li><font face="Monaco" color="#1D1C1D">sub-optimal handling of
unsupported dwarf tags. Eg: dbx support dwarf 3, but
misbehaving with new DWARF 5 tags DW_LANG_C_plus_plus_14
[3].</font></li>
</ul>
<br>
<font color="#1D1C1D">As discussed with the reviewers in patch
[3], we are considering introducing a new tuning debugger tuning
option for dbx, -debugger-tuning=dbx [4], so that we can change
some option</font><br>
<font color="#1D1C1D">default on AIX for dbx to accommodate its
limitations, eg; -gno-column-info.</font><br>
<br>
<font color="#1D1C1D">Any thoughts about the direction here?
Reviews and feedback to [3][4] are also appreciated.</font><br>
<br>
<font face="Monaco" color="#1D1C1D">[1]: </font><a
href="https://lists.llvm.org/pipermail/llvm-dev/2019-February/130175.html"
moz-do-not-send="true"><font face="Monaco">https://lists.llvm.org/pipermail/llvm-dev/2019-February/130175.html</font></a><font
face="Monaco" color="#1D1C1D"><br>
[2]: </font><a
href="https://reviews.llvm.org/rGafa76fe67a42f6d40d83a4f7d0cb03373045f3f4"
target="_blank" moz-do-not-send="true"><font face="Monaco"
color="#0000FF">https://reviews.llvm.org/rGafa76fe67a42f6d40d83a4f7d0cb03373045f3f4</font></a><font
face="Monaco" color="#1D1C1D"><br>
[3]: </font><a href="https://reviews.llvm.org/D99250"
target="_blank" moz-do-not-send="true"><font face="Monaco"
color="#0000FF">https://reviews.llvm.org/D99250</font></a><font
face="Monaco" color="#1D1C1D"><br>
[4]: </font><a href="https://reviews.llvm.org/D99400"
target="_blank" moz-do-not-send="true"><font face="Monaco"
color="#0000FF">https://reviews.llvm.org/D99400</font></a><br>
<br>
<font color="#1D1C1D">Thanks!</font><br>
<br>
BRS//<br>
Chen Zheng<br>
Power Compiler Backend Developer<br>
<br>
<br>
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