1 /* Iterate over a process's thread-specific data.
2 Copyright (C) 1999-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 1999.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
21 #include "thread_dbP.h"
25 td_ta_tsd_iter (const td_thragent_t *ta_arg, td_key_iter_f *callback,
28 td_thragent_t *const ta = (td_thragent_t *) ta_arg;
31 size_t keys_nb, keys_elemsize;
35 LOG ("td_ta_tsd_iter");
37 /* Test whether the TA parameter is ok. */
41 /* This makes sure we have the size information on hand. */
43 err = _td_locate_field (ta,
44 ta->ta_var___pthread_keys, SYM_DESC___pthread_keys,
45 (psaddr_t) 0 + 1, &addr);
49 /* Now copy in the entire array of key descriptors. */
50 keys_elemsize = (addr - (psaddr_t) 0) / 8;
51 keys_nb = keys_elemsize * DB_DESC_NELEM (ta->ta_var___pthread_keys);
52 keys = __alloca (keys_nb);
53 err = DB_GET_SYMBOL (addr, ta, __pthread_keys);
56 if (ps_pdread (ta->ph, addr, keys, keys_nb) != PS_OK)
59 /* Now get all descriptors, one after the other. */
60 for (idx = 0; idx < DB_DESC_NELEM (ta->ta_var___pthread_keys); ++idx)
63 err = DB_GET_FIELD_LOCAL (seq, ta, keys, pthread_key_struct, seq, 0);
66 if (((uintptr_t) seq) & 1)
68 err = DB_GET_FIELD_LOCAL (destr, ta, keys, pthread_key_struct,
72 /* Return with an error if the callback returns a nonzero value. */
73 if (callback ((thread_key_t) idx, destr, cbdata_p) != 0)
76 /* Advance to the next element in the copied array. */
77 keys += keys_elemsize;