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      1 /* Test program for dwfl_getmodules bug.
      2    Copyright (C) 2008 Red Hat, Inc.
      3    This file is part of elfutils.
      4 
      5    This file is free software; you can redistribute it and/or modify
      6    it under the terms of the GNU General Public License as published by
      7    the Free Software Foundation; either version 3 of the License, or
      8    (at your option) any later version.
      9 
     10    elfutils is distributed in the hope that it will be useful, but
     11    WITHOUT ANY WARRANTY; without even the implied warranty of
     12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13    GNU General Public License for more details.
     14 
     15    You should have received a copy of the GNU General Public License
     16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
     17 
     18 #include <config.h>
     19 #include ELFUTILS_HEADER(dwfl)
     20 
     21 #include <error.h>
     22 
     23 static const Dwfl_Callbacks callbacks =
     24   {
     25     .find_elf = dwfl_linux_proc_find_elf,
     26     .find_debuginfo = dwfl_standard_find_debuginfo,
     27   };
     28 
     29 static int
     30 iterate (Dwfl_Module *mod __attribute__ ((unused)),
     31 	 void **userdata __attribute__ ((unused)),
     32 	 const char *name __attribute__ ((unused)),
     33 	 Dwarf_Addr base, void *arg)
     34 {
     35   if (base != 0x2000)
     36     return DWARF_CB_OK;
     37 
     38   if (dwfl_addrmodule (arg, 0x2100) == NULL)
     39     error (1, 0, "dwfl_addrmodule: %s", dwfl_errmsg (-1));
     40 
     41   return DWARF_CB_ABORT;
     42 }
     43 
     44 int
     45 main (void)
     46 {
     47   Dwfl *dwfl = dwfl_begin (&callbacks);
     48 
     49   dwfl_report_module (dwfl, "m1", 0, 0x1000);
     50   dwfl_report_module (dwfl, "m2", 0x2000, 0x3000);
     51   dwfl_report_module (dwfl, "m3", 0x4000, 0x5000);
     52 
     53   dwfl_report_end (dwfl, NULL, NULL);
     54 
     55   ptrdiff_t offset = dwfl_getmodules (dwfl, &iterate, dwfl, 0);
     56   if (offset <= 0)
     57     error (1, 0, "dwfl_getmodules: %s", dwfl_errmsg (-1));
     58 
     59   offset = dwfl_getmodules (dwfl, &iterate, NULL, offset);
     60   if (offset != 0)
     61     error (1, 0, "dwfl_getmodules (%d): %s", (int) offset, dwfl_errmsg (-1));
     62 
     63   dwfl_end (dwfl);
     64 
     65   return 0;
     66 }
     67