<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">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="">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="">lewisurn@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" class="">
<div text="#000000" bgcolor="#FFFFFF" class="">
<br 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="">
<div class="">
<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>
</div>
</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="">
</div>
</div></blockquote></div><br class=""></div></body></html>