| /* Iterate over a process's thread-specific data. |
| Copyright (C) 1999-2014 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 <stdint.h> |
| #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; |
| } |