nptl_db/td_symbol_list.c

   1 /* Return list of symbols the library can request.
   2    Copyright (C) 2001-2014 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@redhat.com>, 2001.
   5
   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.
  10
  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.
  15
  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/>.  */
  19
  20 #include <assert.h>
  21 #include <gnu/lib-names.h>
  22 #include "thread_dbP.h"
  23
  24 static const char *symbol_list_arr[] =
  25 {
  26 # define DB_LOOKUP_NAME(idx, name)              [idx] = STRINGIFY (name),
  27 # define DB_LOOKUP_NAME_TH_UNIQUE(idx, name)    [idx] = STRINGIFY (name),
  28 # include "db-symbols.h"
  29 # undef DB_LOOKUP_NAME
  30 # undef DB_LOOKUP_NAME_TH_UNIQUE
  31
  32   [SYM_NUM_MESSAGES] = NULL
  33 };
  34
  35
  36 const char **
  37 td_symbol_list (void)
  38 {
  39   return symbol_list_arr;
  40 }
  41
  42
  43 ps_err_e
  44 td_lookup (struct ps_prochandle *ps, int idx, psaddr_t *sym_addr)
  45 {
  46   ps_err_e result;
  47   assert (idx >= 0 && idx < SYM_NUM_MESSAGES);
  48   result = ps_pglobal_lookup (ps, LIBPTHREAD_SO, symbol_list_arr[idx],
  49                               sym_addr);
  50
  51 #ifdef HAVE_ASM_GLOBAL_DOT_NAME
  52   /* For PowerPC, 64-bit uses dot symbols but 32-bit does not.
  53      We could be a 64-bit libthread_db debugging a 32-bit libpthread.  */
  54   if (result == PS_NOSYM && symbol_list_arr[idx][0] == '.')
  55     result = ps_pglobal_lookup (ps, LIBPTHREAD_SO, &symbol_list_arr[idx][1],
  56                                 sym_addr);
  57 #endif
  58
  59   return result;
  60 }