1 files changed, 62 insertions, 0 deletions
diff --git a/linuxthreads_db/td_ta_map_lwp2thr.c b/linuxthreads_db/td_ta_map_lwp2thr.c
new file mode 100644
index 0000000000..995620f023
--- /dev/null
+++ b/linuxthreads_db/td_ta_map_lwp2thr.c
@@ -0,0 +1,62 @@
+/* Which thread is running on an lwp?
+   Copyright (C) 1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "thread_dbP.h"
+
+
+td_err_e
+td_ta_map_lwp2thr (const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
+{
+  struct pthread_handle_struct *handles = ta->handles;
+  int pthread_threads_max = ta->pthread_threads_max;
+  size_t cnt;
+
+  LOG (__FUNCTION__);
+
+  /* Get the entries one after the other and find out whether the ID
+     matches.  */
+  for (cnt = 0; cnt < pthread_threads_max; ++cnt, ++handles)
+    {
+      struct pthread_handle_struct phc;
+      struct _pthread_descr_struct pds;
+
+      if (ps_pdread (ta->ph, handles, &phc,
+		     sizeof (struct pthread_handle_struct)) != PS_OK)
+	return TD_ERR;	/* XXX Other error value?  */
+
+      if (phc.h_descr != NULL)
+	{
+	  if (ps_pdread (ta->ph, phc.h_descr, &pds,
+			 sizeof (struct _pthread_descr_struct)) != PS_OK)
+	    return TD_ERR;	/* XXX Other error value?  */
+
+	  if (pds.p_pid == lwpid)
+	    {
+	      /* Found it.  Now fill in the `td_thrhandle_t' object.  */
+	      th->th_ta_p = (td_thragent_t *) ta;
+	      th->th_unique = phc.h_descr;
+
+	      return TD_OK;
+	    }
+	}
+    }
+
+  return TD_NOLWP;
+}