Modified the host process monitor callback function Host::StartMonitoringChildProcess
to spawn a thread for each process that is being monitored. Previously
LLDB would spawn a single thread that would wait for any child process which
isn't ok to do as a shared library (LLDB.framework on Mac OSX, or lldb.so on
linux). The old single thread used to call wait4() with a pid of -1 which 
could cause it to reap child processes that it shouldn't have.

Re-wrote the way Function blocks are handles. Previously I attempted to keep
all blocks in a single memory allocation (in a std::vector). This made the
code somewhat efficient, but hard to work with. I got rid of the old BlockList
class, and went to a straight parent with children relationship. This new 
approach will allow for partial parsing of the blocks within a function.




git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@111706 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
index d1fb7bf..88c495a 100644
--- a/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
+++ b/source/Plugins/Process/gdb-remote/ProcessGDBRemote.h
@@ -324,7 +324,7 @@
     lldb::ByteOrder m_byte_order;
     GDBRemoteCommunication m_gdb_comm;
     lldb::pid_t m_debugserver_pid;
-    uint32_t m_debugserver_monitor;
+    lldb::thread_t m_debugserver_thread;
     StringExtractor m_last_stop_packet;
     GDBRemoteDynamicRegisterInfo m_register_info;
     lldb_private::Broadcaster m_async_broadcaster;