[Lldb-commits] [PATCH] Properly decode architecture type in GDBRemoteCommunicationClient::GetCurrentProcessInfo.

Todd Fiala tfiala at google.com
Wed Sep 10 13:50:27 PDT 2014


I'm not averse to the change.  But I stumbled across a few places in the
code where, once we see cputype/cpuinfo, we start assuming we are in Apple
code.  And to keep everyone sane, if you can migrate to using triples on
non-Apple hardware, I think that's a good idea.

Probably good if there's a once over on the change from an Apple team
member on this here.

On Wed, Sep 10, 2014 at 1:43 PM, Stephane Sezer <sas at fb.com> wrote:

> Hey Todd,
>
> Yes, you are correct. I needed this patch for non-Apple targets that send
> a cputype/cpusubtype couple instead of a full triple. If this is something
> that you guys think is invalid, I can deal with it on the debug server we
> are using.
>
> AFAICT, right now we have two ways of getting the process info: one with
> the triples, which works everywhere, and one with cputype/cpusubtype that
> works only with apple targets. This would make both ways work everywhere in
> theory.
>
> On Sep 10, 2014, at 10:36 AM, Todd Fiala <tfiala at google.com> wrote:
>
> > Hey Stephane!
> >
> > On this patch, one of the things I'm seeing is that it appears you are
> (maybe?) sending cputype and cpusubtype in cases where the target is not a
> MachO-based system.  In general, the cputype/cpusubtype are meant to be a
> MachO-xnu specific mechanism.  We try to *not* send those for non-Apple
> targets and instead send just the triples.
> >
> > Are you in a position where this might be the case?  I can try out the
> patch but it looks like it's basically geared to handle qProcessInfo for
> non-MachO platforms sending cpu type info if I'm reading it right.
> >
> > -Todd
> >
> > On Tue, Sep 9, 2014 at 5:23 PM, Stephane Sezer <sas at fb.com> wrote:
> > Instead of forcing the remote arch type to MachO all the time, we
> > inspect the OS/vendor that the remote debug server reports and use it to
> > set the arch type to MachO, ELF or COFF accordingly.
> >
> >
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> >
> >
> >
> >
> > --
> > Todd Fiala |   Software Engineer |     tfiala at google.com |
> 650-943-3180
> >
>
>


-- 
Todd Fiala | Software Engineer | tfiala at google.com | 650-943-3180
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