<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div>I think we need a straw man proposal to start iterating on. Clang’s diagnostics has lots of good features. But is has lots that a linker does not need. For instance, the line/column number does not make sense for a linker. Clang errors/warnings are mostly about the source language which is pretty standard across different platforms. Other than multiple-defined and undefined errors, most of the linker errors and warnings will be platform specific. </div><div><br></div><div>Linker warnings and errors are also historically very cryptic. Linker errors usually have a low level cause, and a high level action for the developer to take to resolve the issue. For instance, the low level trigger would be a particular relocation kind is not expected. The high level fix is to change the compiler options (e.g. -fno-pic) for a particular file. It would be nice to capture the low and high level in lld’s diagnostics. </div><div><br></div><div>-Nick</div><div><br></div><br><div><div>On Oct 7, 2013, at 3:36 PM, Rui Ueyama <<a href="mailto:ruiu@google.com">ruiu@google.com</a>> wrote:</div><blockquote type="cite"><div dir="ltr">I think having diagnostics interface similar to Clang's would be good. I think the total number of defined warnings would be much smaller than Clang.<br><div class="gmail_extra"><br><div class="gmail_quote">
On Mon, Oct 7, 2013 at 3:19 PM, Shankar Easwaran <span dir="ltr"><<a href="mailto:shankare@codeaurora.org" target="_blank">shankare@codeaurora.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Ping ?<div class="HOEnZb"><div class="h5"><br>
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On 10/4/2013 10:41 PM, Shankar Easwaran wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
lld doesnot have a Diagnostics interface, It uses llvm::errs() to display errors after linking has been done.<br>
<br>
I think the Diagnostics interface follow similiar interface patterns as followed by clang (using Diagnostic td files).<br>
<br>
What do you think ?<br>
<br>
Thanks<br>
<br>
Shankar Easwaran<br>
<br>
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