hhellyer added inline comments.
================
Comment at: source/Plugins/Process/Windows/MiniDump/ProcessWinMiniDump.cpp:338
@@ -315,4 +337,3 @@
// truncated.
- error.SetErrorString("address is not in a known range");
return error;
}
----------------
amccarth wrote:
> hhellyer wrote:
> > Asking for an address outside a known range is not actually an error, you
> > just get back an unmapped range that specifies how far it is to the next
> > mapped range.
> > The original discussion about that happened here:
> > https://reviews.llvm.org/D21751 - GetMemoryRegionInfo should only need to
> > return an error if it is unimplemented. (I should probably have referenced
> > that in the summary.)
> Got it. Thanks for the explanation!
>
> Given that, should the condition on 284 ("the mini dump contains no memory
> range information") actually return an error or just an unmapped range?
I thought the most likely cause of having no memory info would be not passing
the MiniDumpWithFullMemoryInfo flag to MiniDumpWriteDump will create a dump
without the MemoryInfoListStream present. Saying that memory range information
from a dump like that is "unsupported" seemed like the right option. I think
MiniDumpWithFullMemoryInfo is part of the default set of flags used when you
create a dump through task manager so most dumps should have the stream.
I won't land the patch immediately, I'm happy to change it if you'd prefer it
to return an unmapped range. I think it would have to be one unmapped range
that ran from load_addr to LLDB_INVALID_ADDRESS to match the expected behaviour.
https://reviews.llvm.org/D22352
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