1 files changed, 76 insertions, 0 deletions
diff --git a/linuxthreads_db/td_thr_tsd.c b/linuxthreads_db/td_thr_tsd.c
new file mode 100644
index 0000000000..0453c981ea
--- /dev/null
+++ b/linuxthreads_db/td_thr_tsd.c
@@ -0,0 +1,76 @@
+/* Get a thread-specific data pointer for a thread.
+   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_thr_tsd (const td_thrhandle_t *th, const thread_key_t tk, void **data)
+{
+  struct _pthread_descr_struct pds;
+  struct pthread_key_struct *keys = th->th_ta_p->keys;
+  struct pthread_key_struct key;
+  int pthread_keys_max = th->th_ta_p->pthread_keys_max;
+  int pthread_key_2ndlevel_size = th->th_ta_p->pthread_key_2ndlevel_size;
+  unsigned int idx1st;
+  unsigned int idx2nd;
+  void *p;
+
+  LOG (__FUNCTION__);
+
+  /* Get the thread descriptor.  */
+  if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds,
+		 sizeof (struct _pthread_descr_struct)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Check correct value of key.  */
+  if (tk >= pthread_keys_max)
+    return TD_BADKEY;
+
+  /* Get the key entry.  */
+  if (ps_pdread (th->th_ta_p->ph, keys, &key,
+		 sizeof (struct pthread_key_struct)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Fail if this key is not at all used.  */
+  if (! key.in_use)
+    return TD_BADKEY;
+
+  /* Compute the indeces.  */
+  idx1st = tk / pthread_key_2ndlevel_size;
+  idx2nd = tk % pthread_key_2ndlevel_size;
+
+  /* Check the pointer to the second level array.  */
+  if (pds.p_specific[idx1st] == NULL)
+    return TD_NOTSD;
+
+  /* Now get the real key.
+     XXX I don't know whether it's correct but there is currently no
+     easy way to determine whether a key was never set or the value
+     is NULL.  We return an error whenever the value is NULL.  */
+  if (ps_pdread (th->th_ta_p->ph, &pds.p_specific[idx1st][idx2nd], &p,
+		 sizeof (void *)) != PS_OK)
+    return TD_ERR;
+
+  if (p != NULL)
+    *data = p;
+
+  return p != NULL ? TD_OK : TD_NOTSD;
+}