Major update for pthreads, based in large part on improvements

from glibc 2.3.  This should make threads much more efficient.
 -Erik

1 files changed, 17 insertions, 4 deletions

diff --git a/libpthread/linuxthreads_db/td_thr_validate.c b/libpthread/linuxthreads_db/td_thr_validate.c
index 354471071..e18b5728b 100644
--- a/libpthread/linuxthreads_db/td_thr_validate.c
+++ b/libpthread/linuxthreads_db/td_thr_validate.c
@@ -1,5 +1,5 @@
 /* Validate a thread handle.
-   Copyright (C) 1999, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
 
@@ -19,6 +19,7 @@
    02111-1307 USA.  */
 
 #include "thread_dbP.h"
+#include "../linuxthreads/internals.h"
 
 
 td_err_e
@@ -27,14 +28,26 @@ td_thr_validate (const td_thrhandle_t *th)
   struct pthread_handle_struct *handles = th->th_ta_p->handles;
   int pthread_threads_max = th->th_ta_p->pthread_threads_max;
   int cnt;
+  struct pthread_handle_struct phc;
 
-  LOG (__FUNCTION__);
+  LOG ("td_thr_validate");
+
+  /* A special case: if the program just starts up the handle is
+     NULL.  */
+  if (th->th_unique == NULL)
+    {
+      /* Read the first handle.  If the pointer to the thread
+	 descriptor is not NULL this is an error.  */
+      if (ps_pdread (th->th_ta_p->ph, handles, &phc,
+		     sizeof (struct pthread_handle_struct)) != PS_OK)
+	return TD_ERR;	/* XXX Other error value?  */
+
+      return phc.h_descr == NULL ? TD_OK : TD_NOTHR;
+    }
 
   /* Now get all descriptors, one after the other.  */
   for (cnt = 0; cnt < pthread_threads_max; ++cnt, ++handles)
     {
-      struct pthread_handle_struct phc;
-
       if (ps_pdread (th->th_ta_p->ph, handles, &phc,
 		     sizeof (struct pthread_handle_struct)) != PS_OK)
 	return TD_ERR;	/* XXX Other error value?  */