FWIW, I was the one who put the comment in about getting the architecture 
elsewhere.  I put it there when I implemented GetProcessInfo for the attach by 
pid case.  In that situation, if I left it blank it was getting set later in 
the attach flow when ProcessPOSIX added the executable module to its module 
list.  Since the executable image was already being parsed there, I didn't want 
to parse it again just before we got there.

I was also really hoping to avoid adding a third (or possibly fourth) bit of 
code to the LLVM/LLDB code base to read ELF headers, and I didn't have time to 
figure out a good way to get at one of the other bits of code that was doing so.

My point in all of this is to say, yes, go ahead and get the architecture there 
without worrying about what that comment meant.

-Andy

-----Original Message-----
From: [email protected] [mailto:[email protected]] On 
Behalf Of Malea, Daniel
Sent: Wednesday, May 15, 2013 11:40 AM
To: Michael Sartain
Cc: [email protected]
Subject: Re: [lldb-dev] PATCH for REVIEW: Implement Linux Host::FindProcesses()

Great! If you're already working on figuring out the process architecture, I 
won't bother filing a bug about it.

Cheers,
Dan


From: Michael Sartain 
<[email protected]<mailto:[email protected]>>
Date: Wednesday, 15 May, 2013 2:10 PM
To: Daniel Malea <[email protected]<mailto:[email protected]>>
Cc: Michael Sartain 
<[email protected]<mailto:[email protected]>>, 
"[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: [lldb-dev] PATCH for REVIEW: Implement Linux Host::FindProcesses()

On Wed, May 15, 2013 at 10:57 AM, Malea, Daniel 
<[email protected]<mailto:[email protected]>> wrote:
I verified the implementation works as expected on Linux (Ubuntu 12.10), but I 
notice you're not filling in the process architecture. I believe there's an 
existing comment about why it's better to determine the arch in a different 
place, so it's probably fine to omit for now, but unless someone has any 
qualms, I will file a bug to also list the process' architectures when the user 
does "platform process list"; currently that field just shows "0".

Ha! You are good. I'm actually about halfway through a GetELFProcessCPUType() 
function right now. It looks like I have to follow the exe link and read the 
elf header to get that data, but it's not too bad. Chris Lattner was kinda 
enough to get me commit access, so hopefully I'll have something for folks to 
review later today and then try to submit it myself if it looks ok.

In addition to fixing the platform command bug (functionalities/platform) this 
patch also fixes the attach-by-name test cases (python_api/hello_world and 
functionalities/process_attach)!

Committed in r181904, tests re-enabled in r181905.

Thank you much for checking and getting this in Daniel. Appreciate it.
 -Mike

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