1 files changed, 71 insertions, 0 deletions
diff --git a/nptl_db/td_thr_tsd.c b/nptl_db/td_thr_tsd.c
new file mode 100644
index 0000000000..d1a54537ff
--- /dev/null
+++ b/nptl_db/td_thr_tsd.c
@@ -0,0 +1,71 @@
+/* Get a thread-specific data pointer for a thread.
+   Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; 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)
+{
+  LOG ("td_thr_tsd");
+
+  /* Check correct value of key.  */
+  if (tk >= th->th_ta_p->pthread_keys_max)
+    return TD_BADKEY;
+
+  /* Get the key entry.  */
+  uintptr_t seq;
+  if (ps_pdread (th->th_ta_p->ph, &th->th_ta_p->keys[tk].seq, &seq,
+		 sizeof (uintptr_t)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Fail if this key is not at all used.  */
+  if (KEY_UNUSED (seq))
+    return TD_BADKEY;
+
+  /* Compute the indeces.  */
+  int pthread_key_2ndlevel_size = th->th_ta_p->pthread_key_2ndlevel_size;
+  unsigned int idx1st = tk / pthread_key_2ndlevel_size;
+  unsigned int idx2nd = tk % pthread_key_2ndlevel_size;
+
+  struct pthread_key_data *level1;
+  if (ps_pdread (th->th_ta_p->ph,
+		 &((struct pthread *) th->th_unique)->specific[idx1st],
+		 &level1, sizeof (level1)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Check the pointer to the second level array.  */
+  if (level1 == NULL)
+    return TD_NOTSD;
+
+  struct pthread_key_data level2;
+  if (ps_pdread (th->th_ta_p->ph, &level1[idx2nd], &level2,
+		 sizeof (level2)) != PS_OK)
+    return TD_ERR;	/* XXX Other error value?  */
+
+  /* Check whether the data is valid.  */
+  if (level2.seq != seq)
+    return TD_NOTSD;
+
+  if (level2.data != NULL)
+    *data = level2.data;
+
+  return TD_OK;
+}