1 /* Validate a thread handle.
2 Copyright (C) 1999, 2001, 2002, 2003, 2004 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/>. */
20 #include "thread_dbP.h"
24 check_thread_list (const td_thrhandle_t *th, psaddr_t head, bool *uninit)
29 err = DB_GET_FIELD (next, th->th_ta_p, head, list_t, next, 0);
37 err = DB_GET_FIELD_ADDRESS (ofs, th->th_ta_p, 0, pthread, list, 0);
45 if (next - (ofs - (psaddr_t) 0) == th->th_unique)
48 err = DB_GET_FIELD (next, th->th_ta_p, next, list_t, next, 0);
56 td_thr_validate (const td_thrhandle_t *th)
61 LOG ("td_thr_validate");
63 /* First check the list with threads using user allocated stacks. */
65 err = DB_GET_SYMBOL (list, th->th_ta_p, __stack_user);
67 err = check_thread_list (th, list, &uninit);
69 /* If our thread is not on this list search the list with stack
70 using implementation allocated stacks. */
73 err = DB_GET_SYMBOL (list, th->th_ta_p, stack_used);
75 err = check_thread_list (th, list, &uninit);
77 if (err == TD_NOTHR && uninit)
79 /* __pthread_initialize_minimal has not run yet.
80 But the main thread still has a valid ID. */
81 td_thrhandle_t main_th;
82 err = td_ta_map_lwp2thr (th->th_ta_p,
83 ps_getpid (th->th_ta_p->ph), &main_th);
84 if (err == TD_OK && th->th_unique != main_th.th_unique)