take over unknown threads for all injection paths

From bruen...@google.com on October 25, 2013 13:12:07

Xref https://github.com/DynamoRIO/drmemory/issues/1355 Xref cygwin early thread problems Xref issue #627 : early injected threads

Now that we have code to take over unknown threads on Windows, developed for attach ( issue #725 , r2032 ), we should use it whenever we start.

We just need to call dynamorio_take_over_threads() in auto_setup(), right? The other threads do their own initialization, so tools should be fine with it.

This would also help Cygwin support.

dynamo_start() today calls dynamorio_take_over_threads() -- and it's used by AppInit and early injection. So just switching drinject to use earlier injection would pick this up automatically -- except DrMem (and probably other WinAPI-using tools) can't handle earlier injection yet.

Original issue: http://code.google.com/p/dynamorio/issues/detail?id=1304