[Lldb-commits] [PATCH] Make llgs build on Android. No functionality change.

Todd Fiala tfiala at google.com
Fri Sep 26 13:09:47 PDT 2014

>>! In D5495#27, @zturner wrote:
> I'm not seeing the changes to HostInfoPosix and HostThreadPosix that I
> suggested.  Are those still coming in a followup?

With Android, it's *mostly* Linux (at the kernel level) except we have a whole slew of different runtime libraries that differ.  So, for much of the behavior, it will be like Linux/POSIX, but with certain libc calls and whatnot that just don't exist.  Ideally we minimize how much we differ and only when needed.

Tong, can you take a look at that?  If we need a Linux-derived Android variant of these classes, this might be a good time to look at those.  Thanks.

> (paraphrased) how do you launch on Android, then?

In general you don't.  The Android zygote takes care of launching for userland, and debuggers usually run attach-only.

That's just a half-truth, though.  We do have low-level, internal capabilities for launching,  but since that is not a supported path for developers, they are not exposed in a way we can access with POSIX-like calls.  The launch code might end up only showing up in an AOSP environment but, in any event, the attach path is the crucial one for Android right now.


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