<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Oct 6, 2016, at 9:58 AM, Eric Christopher <<a href="mailto:echristo@gmail.com" class="">echristo@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><br class=""><br class=""><div class="gmail_quote"><div dir="ltr" class="">On Thu, Oct 6, 2016 at 9:48 AM George Rimar <<a href="mailto:grimar@accesssoftek.com" class="">grimar@accesssoftek.com</a>> wrote:<br class=""></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr" style="font-size: 12pt; background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif;" class="gmail_msg"><p class="gmail_msg">Thanks for explanation, David !<br class="gmail_msg">
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<div class="gmail_quote gmail_msg"></div></div></div></div></div><div dir="ltr" style="font-size: 12pt; background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif;" class="gmail_msg"><div style="color:rgb(33,33,33)" class="gmail_msg"><div class="gmail_msg"><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg">
<div class="gmail_msg">>If other projects are anything to go by, that rarely, if ever, happens. So we tend to like to frontload some of this work to avoid >divergence which makes the cost more expensive over time and less likely to be done.<br class="gmail_msg">
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>(see LLDB's use of a fork of the LLVM DWARF parsing logic (well, I think LLVM maybe forked LLDB's, but either way) as a >cautionary tale)</div>
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</div></div></div></div></div><div dir="ltr" style="font-size: 12pt; background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif;" class="gmail_msg"><div style="color:rgb(33,33,33)" class="gmail_msg"><div class="gmail_msg"><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg"><div class="gmail_msg">I understand your conserns. But looking on full version of functionality (D24267), I see that linker<br class="gmail_msg">
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<div class="gmail_msg">needs just a little amount of parsing code. And I do not expect we will need much more.<br class="gmail_msg">
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<div class="gmail_msg">If we one day we will have fast reusable llvm parsers, I think it be not hard to switch lld to use them (watching for perfomance changes), <span style="font-size:12pt" class="gmail_msg">but for now I think</span><span style="font-size:12pt" class="gmail_msg"> own </span><span style="font-size:12pt" class="gmail_msg">short</span><span style="font-size:12pt" class="gmail_msg"> implementation
that do only things required for generation gdb_index fits better.</span></div></div></div></div></div></div><div dir="ltr" style="font-size: 12pt; background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif;" class="gmail_msg"><div style="color:rgb(33,33,33)" class="gmail_msg"><div class="gmail_msg"><div dir="ltr" class="gmail_msg"><div class="gmail_quote gmail_msg">
<div class="gmail_msg"><br class=""></div></div></div></div></div></div></blockquote><div class=""><br class=""></div><div class="">There's an assertion here that the current implementation is not fast or reusable. I'm not sure where that came from or what prompted it.</div><div class=""><br class=""></div><div class="">Could you elaborate more on why you think these things?</div></div></div></div></blockquote><div><br class=""></div><div>I would also like to add that Greg Clayton is currently working porting LLDB over to use LLVM's dwarf parser (and add any missing functionality to LLVM's implementation).</div><div><br class=""></div><div>-- adrian</div></div></body></html>