<div dir="ltr"><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jul 28, 2014 at 2:25 AM, Matthew Gardiner <span dir="ltr"><<a href="mailto:mg11@csr.com" target="_blank">mg11@csr.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Todd/Jason,<br>
<br>
I'm happy to do this work, i.e. changes to GDBRemoteCommunicationServer.<u></u>cpp and GDBRemoteCommunicationClient.<u></u>cpp. (And to change the kalimba stub is easy). As I have just acquired commit access to lldb this could be a useful piece of work to introduce me to the Phabricator review process.<br>
<br></blockquote><div><br></div><div>Great, have at it!</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
A couple of questions remain, though.<br>
<br>
Todd's comment:<div class=""><br>
<br>
"Are there any ramifications for<br>
your usage of lldb-platform, though? We’d need to change the receiver code<br>
of that, which would then differ based on which lldb-platform version<br>
you’re talking to."<br>
<br>
<br></div>
Is that meaning that there are installed lldb-platform binaries which will now be broken against a version of lldb which expects plain text triples? Is that a problem? (that is, __will__ people upgrade both lldb and lldb-platform separately).<br>
<br></blockquote><div><br></div><div>Matthew, this was my misunderstanding. I had thought lldb-platform shipped with all the Apple platforms. They fixed my understanding - it only gets downloaded to devices as needed but doesn't live there. So this is a non-issue. As for llgs using it, that should not be an issue as llgs is just getting functional now and backwards support isn't a concern just yet.</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Todd, do you know if distribution_id, os_build, os_kernel need to converted to plain-text?<br>
<br></blockquote><div><br></div><div>I added distribution_id to indicate the Linux distribution, since it looks like on Android that might be the only way I can tell Android and its Androidisms apart from a stock Linux. On Linux, it grabs the content from the lsb_release exe, which really could be anything. If we wanted to switch that to binary encoding, that should be fine. You could change that one.</div>
<div><br></div><div>Somebody else should probably comment on os_build/os_kernel.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Jason, what is the problem with hostname? Previously you wrote that we are dealing with a user-specified string that may include non-alphanumeric characters. So in lldb/GDB-RSP context is a hostname different than that defined in <a href="http://tools.ietf.org/html/rfc952" target="_blank">http://tools.ietf.org/html/<u></u>rfc952</a>?<br>
<br>
Matt<br>
<br>
Todd Fiala wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="">
Cool - sounds all good to me since we don't have a backwards compatibility problem. Now would be the time to do it :-)<br>
<br>
-Todd<br>
<br>
<br>
<br></div><div class="">
On Fri, Jul 25, 2014 at 12:40 PM, Jason Molenda <<a href="mailto:jason@molenda.com" target="_blank">jason@molenda.com</a> <mailto:<a href="mailto:jason@molenda.com" target="_blank">jason@molenda.com</a>>> wrote:<br>
<br>
<br>
On Jul 25, 2014, at 7:08 AM, Todd Fiala <<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a><br></div><div><div class="h5">
<mailto:<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>>> wrote:<br>
<br>
> Hey Jason,<br>
><br>
> I don’t know about llgs or how much work it would be to change<br>
the kalimba gdbserver stub.<br>
><br>
> Currently GDBRemoteCommunicationServer, used by both llgs and<br>
lldb-platform, does send the triple as hex encoded via this code:<br>
><br>
> response.PutCString("triple:")<u></u>;<br>
> response.PutCStringAsRawHex8(<u></u>host_triple.getTriple().c_str(<u></u>));<br>
><br>
> We can easily not do that as you suggest. Are there any<br>
ramifications for your usage of lldb-platform, though? We’d need<br>
to change the receiver code of that, which would then differ based<br>
on which lldb-platform version you’re talking to.<br>
<br>
It sounds like Matthew is open to changing the kalimba stub. We<br>
should get rid of the hex-ascii strings (along with<br>
distribution_id, os_build, os_kernel) everywhere. lldb-platform<br>
is not bundled/distributed in any products so we don't have to<br>
worry about deployed versions.<br>
<br>
hostname is less clear-cut because there we're dealing with a<br>
user-specified string and that may include one of # $ } *.<br>
<br>
Personally, I wish the whole of gdb-remote protocol required the<br>
use of the binary packet escape protocol which says that any of<br>
these 4 metacharacters that is meant to be sent in the body of a<br>
packet is prefixed with } and is xor'ed with 0x20. But that's not<br>
what the protocol says so we need to do these things..<br>
<br>
<br>
<br>
<br>
-- <br></div></div>
Todd Fiala | Software Engineer | <a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a> <mailto:<a href="mailto:tfiala@google.com" target="_blank">tfiala@google.com</a>> | <a href="tel:650-943-3180" value="+16509433180" target="_blank">650-943-3180</a><br>
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<td nowrap style="border-top-style:solid;border-top-color:rgb(213,15,37);border-top-width:2px">Todd Fiala |</td><td nowrap style="border-top-style:solid;border-top-color:rgb(51,105,232);border-top-width:2px"> Software Engineer |</td>
<td nowrap style="border-top-style:solid;border-top-color:rgb(0,153,57);border-top-width:2px"> <a href="mailto:tfiala@google.com" style="color:rgb(17,85,204)" target="_blank"><span style="background-color:rgb(255,255,204);color:rgb(34,34,34);background-repeat:initial initial">tfiala@google.com</span></a> |</td>
<td nowrap style="border-top-style:solid;border-top-color:rgb(238,178,17);border-top-width:2px"><font color="#1155cc"> <a>650-943-3180</a></font></td></tr></tbody></table><br></div>
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