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<div class="moz-cite-prefix">24.09.2019 3:05, David Blaikie пишет:<br>
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<div dir="ltr" class="gmail_attr">On Fri, Sep 20, 2019 at 1:41
PM Alexey Lapshin <<a href="mailto:a.v.lapshin@mail.ru"
target="_blank" moz-do-not-send="true">a.v.lapshin@mail.ru</a>>
wrote:<br>
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<div>19.09.2019 4:24, David Blaikie пишет:<br>
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<div dir="ltr" class="gmail_attr">On Wed, Sep 18,
2019 at 7:25 AM Alexey Lapshin <<a
href="mailto:a.v.lapshin@mail.ru"
target="_blank" moz-do-not-send="true">a.v.lapshin@mail.ru</a>>
wrote:<br>
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Generally speaking, dsymutil does a very similar
thing. It parses DWARF DIEs, analyzes
relocations, scans through references and throws
out unused DIEs. But it`s current interface does
not allow to use it at link stage. <br>
I think it would be perfect to have a singular
implementation. <br>
Though I did not analyze how easy or is it
possible to reuse its code at the link stage, it
looked like it needs a significant rework. <br>
<br>
Implementation from this proposal does removing
of obsolete debug info at link stage. <br>
And so has benefits of already loaded object
files, already created liveness information, <br>
generating an optimized binary from scratch.<br>
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<p>If dsymutil could be refactored in such
manner that could be used at the link stage,
then it`s implementation could be reused. I
would research the possibility of such a
refactoring.</p>
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<div>Yeah, if this is going to be implemented, I
think that would be strongly preferred - though I
realize it may be substantial work to refactor.
The alternative - duplicating all this work -
doesn't seem like something that would be good for
the LLVM project.<br>
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<p>I see. So I would research the question of whether it
is possible to refactor it accordingly.<br>
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<p>It looks like I have a prototype of that refactoring. Next I am
going to create a patch from it.<br>
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<p>Thank you, Alexey.<br>
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