gdb/testsuite/gdb.perf/solib.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright (C) 2013-2018 Free Software Foundation, Inc.
   4
   5    This program 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    This program is distributed in the hope that it will be useful,
  11    but 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 <stdio.h>
  19 #include <stdlib.h>
  20
  21 #ifdef __WIN32__
  22 #include <windows.h>
  23 #define dlopen(name, mode) LoadLibrary (TEXT (name))
  24 # define dlsym(handle, func) GetProcAddress (handle, func)
  25 #define dlclose(handle) FreeLibrary (handle)
  26 #else
  27 #include <dlfcn.h>
  28 #endif
  29
  30 static void **handles;
  31
  32 void
  33 do_test_load (int number)
  34 {
  35   char libname[40];
  36   int i;
  37
  38   handles = malloc (sizeof (void *) * number);
  39   if (handles == NULL)
  40     {
  41       printf ("ERROR on malloc\n");
  42       exit (-1);
  43     }
  44
  45   for (i = 0; i < number; i++)
  46     {
  47       sprintf (libname, "solib-lib%d", i);
  48       handles[i] = dlopen (libname, RTLD_LAZY);
  49       if (handles[i] == NULL)
  50         {
  51           printf ("ERROR on dlopen %s\n", libname);
  52           exit (-1);
  53         }
  54     }
  55 }
  56
  57 void
  58 do_test_unload (int number)
  59 {
  60   int i;
  61
  62   /* Unload shared libraries in different orders.  */
  63 #ifndef SOLIB_DLCLOSE_REVERSED_ORDER
  64   for (i = 0; i < number; i++)
  65 #else
  66   for (i = number - 1; i >= 0; i--)
  67 #endif
  68     dlclose (handles[i]);
  69
  70   free (handles);
  71 }
  72
  73 static void
  74 end (void)
  75 {}
  76
  77 int
  78 main (void)
  79 {
  80   end ();
  81
  82   return 0;
  83 }