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<p><font size="+1">I tried that git monorepo method, but got the
same slowdown about 21 seconds as before with either gold or
lldb and dynamic linking. It's still slower with the default
static linking.</font><br>
</p>
<pre class="moz-signature" cols="72">Love,
Lou
</pre>
<div class="moz-cite-prefix">On 10/03/2018 02:46 PM, George
Karpenkov wrote:<br>
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<blockquote type="cite"
cite="mid:FBEE7C33-CA65-4300-9F7C-6B25E760B15A@apple.com">
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Hi Lou,
<div class=""><br class="">
</div>
<div class="">I find it easiest to just follow the guide at</div>
<div class=""><br class="">
</div>
<div class=""><a
href="https://llvm.org/docs/GettingStarted.html#for-developers-to-work-with-a-git-monorepo"
class="" moz-do-not-send="true">https://llvm.org/docs/GettingStarted.html#for-developers-to-work-with-a-git-monorepo</a></div>
<div class=""><br class="">
</div>
<div class="">specify the projects you need (probably
“clang;libcxx;libcxxabi”), set the linker to gold and not
customize anything else.</div>
<div class="">If you do that, do you still hit the slowdown?</div>
<div class=""><br class="">
</div>
<div class="">George<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 3, 2018, at 2:25 PM, Lou Wynn <<a
href="mailto:lewisurn@gmail.com" class=""
moz-do-not-send="true">lewisurn@gmail.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
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charset=utf-8" class="">
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class="">
<blockquote type="cite"
cite="mid:FDC45EED-CC8A-466D-9154-C5B7D343DB88@apple.com"
class="">
<div class="">
<blockquote type="cite" class="">
<div class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
<blockquote type="cite"
cite="mid:6F1AE09F-2320-4A96-9C99-3F96ADBD6955@apple.com"
class="">
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<div class="">
<blockquote type="cite" class="">
<div class="">
<div text="#000000"
bgcolor="#FFFFFF" class="">
<p class=""><font class=""
size="+1"><tt class="">(lldb)
b
SimpleStreamChecker.cpp:132</tt><tt
class=""><br class="">
</tt><tt class="">Breakpoint
1: no locations (pending).</tt><tt
class=""><br class="">
</tt><tt class="">WARNING:
Unable to resolve breakpoint
to any actual locations.</tt><tt
class=""><br class="">
</tt></font></p>
</div>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">This is also weird. If
lldb replies with “Unable to resolve
breakpoint”, it means that, well, it
could not resolve the breakpoint.</div>
<div class="">And yet it does stop at a
breakpoint (much) later on.</div>
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</div>
</blockquote>
My build uses dynamically linked libraries,
and the symbol is not available when the
related library isn't loaded.<br class="">
</div>
</div>
</blockquote>
<div class=""><br class="">
</div>
<div class="">I think that is your problem.</div>
</div>
</blockquote>
Any idea on how to fix it?<br class="">
<blockquote type="cite"
cite="mid:FDC45EED-CC8A-466D-9154-C5B7D343DB88@apple.com"
class="">
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
<br class="">
When I use the default build which uses
statically linked libraries, it becomes much
slower, with a huge clang program that is 1.5G
without a machine target.<br class="">
</div>
</div>
</blockquote>
<br class="">
</div>
<div class="">Is 1.5GB a problem though?</div>
<div class="">In my experience “gold” linker on Linux
should be performant enough.</div>
<br class="">
</blockquote>
I'm not sure. But it takes more than 30s to hit the
breakpoint with the statically linked library.<br
class="">
<br class="">
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</blockquote>
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