Merge in the pthread library. This is the linuxthreads library taken from

glibc 2.1.3 and ported to work with uClibc by Stefan Soucek and Erik Andersen
(me).  Stefan has hacked things up such that linuxthreads runs on MMU-less
systems (tested only on arm-nommu).  Erik cleaned things up and made it work
properly as a shared library.
 -Erik

1 files changed, 63 insertions, 0 deletions

diff --git a/libpthread/linuxthreads_db/td_ta_map_id2thr.c b/libpthread/linuxthreads_db/td_ta_map_id2thr.c
new file mode 100644
index 000000000..6fb1ba96a
--- /dev/null
+++ b/libpthread/linuxthreads_db/td_ta_map_id2thr.c
@@ -0,0 +1,63 @@
+/* Map thread ID to thread handle.
+   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_id2thr (const td_thragent_t *ta, pthread_t pt, td_thrhandle_t *th)
+{
+  struct pthread_handle_struct phc;
+  struct _pthread_descr_struct pds;
+  int pthread_threads_max;
+
+  LOG (__FUNCTION__);
+
+  /* Test whether the TA parameter is ok.  */
+  if (! ta_ok (ta))
+    return TD_BADTA;
+
+  /* Make the following expression a bit smaller.  */
+  pthread_threads_max = ta->pthread_threads_max;
+
+  /* We can compute the entry in the handle array we want.  */
+  if (ps_pdread (ta->ph, ta->handles + pt % pthread_threads_max, &phc,
+		 sizeof (struct pthread_handle_struct)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Test whether this entry is in use.  */
+  if (phc.h_descr == NULL)
+    return TD_BADTH;
+
+  /* Next test: get the descriptor to see whether this is not an old
+     thread handle.  */
+  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_tid != pt)
+    return TD_BADTH;
+
+  /* Create the `td_thrhandle_t' object.  */
+  th->th_ta_p = (td_thragent_t *) ta;
+  th->th_unique = phc.h_descr;
+
+  return TD_OK;
+}