* cygheap.cc (init_cygheap::find_tls): Add comment.

* cygtls.cc (well_known_dlls): Rephrase comment.
	(bloda_detect): New function.
	(_cygtls::call2): Call init_thread and bloda_detect for non-pthread
	threads only.
	(_cygtls::remove): Move remove_tls and remove_wq calls up to run first.
	* miscfuncs.cc (struct pthread_wrapper_arg): Rename from struct
	thread_wrapper_arg.
	(pthread_wrapper): Rename from thread_wrapper and drop "static".  Fix
	comment.  Drop call to _cygtls::remove.  Call api_fatal rather than
	ExitThread.  Explain why.
	* miscfuncs.h (pthread_wrapper): Declare pthread_wrapper.
	* thread.cc (pthread::exit): Add a FIXME comment.  Call _cygtls::remove
	before calling ExitThread.

winsup/cygwin/cygheap.cc

@@ -673,6 +673,7 @@ init_cygheap::find_tls (int sig, bool& issig_wait)
     {
       __try
 	{
+	    /* Only pthreads have tid set to non-0. */
 	    if (!threadlist[ix]->tid)
 	      continue;
 	    else if (sigismember (&(threadlist[ix]->sigwait_mask), sig))