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/* Iterate over a process's thread-specific data. Copyright (C) 1999,2000,2001,2002,2003 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, see <http://www.gnu.org/licenses/>. */ #include "thread_dbP.h" #include <alloca.h> td_err_e td_ta_tsd_iter (const td_thragent_t *ta_arg, td_key_iter_f *callback, void *cbdata_p) { td_thragent_t *const ta = (td_thragent_t *) ta_arg; td_err_e err; void *keys; size_t keys_nb, keys_elemsize; psaddr_t addr; uint32_t idx; LOG ("td_ta_tsd_iter"); /* Test whether the TA parameter is ok. */ if (! ta_ok (ta)) return TD_BADTA; /* This makes sure we have the size information on hand. */ addr = 0; err = _td_locate_field (ta, ta->ta_var___pthread_keys, SYM_DESC___pthread_keys, (psaddr_t) 0 + 1, &addr); if (err != TD_OK) return err; /* Now copy in the entire array of key descriptors. */ keys_elemsize = (addr - (psaddr_t) 0) / 8; keys_nb = keys_elemsize * DB_DESC_NELEM (ta->ta_var___pthread_keys); keys = __alloca (keys_nb); err = DB_GET_SYMBOL (addr, ta, __pthread_keys); if (err != TD_OK) return err; if (ps_pdread (ta->ph, addr, keys, keys_nb) != PS_OK) return TD_ERR; /* Now get all descriptors, one after the other. */ for (idx = 0; idx < DB_DESC_NELEM (ta->ta_var___pthread_keys); ++idx) { psaddr_t seq, destr; err = DB_GET_FIELD_LOCAL (seq, ta, keys, pthread_key_struct, seq, 0); if (err != TD_OK) return err; if (((uintptr_t) seq) & 1) { err = DB_GET_FIELD_LOCAL (destr, ta, keys, pthread_key_struct, destr, 0); if (err != TD_OK) return err; /* Return with an error if the callback returns a nonzero value. */ if (callback ((thread_key_t) idx, destr, cbdata_p) != 0) return TD_DBERR; } /* Advance to the next element in the copied array. */ keys += keys_elemsize; } return TD_OK; } |