elf/tst-linkall-static.c

   1 /* Test static linking against multiple libraries, to find symbol conflicts.
   2    Copyright (C) 2016-2020 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library 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 GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If
  17    not, see <https://www.gnu.org/licenses/>.  */
  18
  19 #include <math.h>
  20 #include <pthread.h>
  21 #if USE_CRYPT
  22 # include <crypt.h>
  23 #endif
  24 #include <resolv.h>
  25 #include <dlfcn.h>
  26 #include <utmp.h>
  27 #include <aio.h>
  28 #include <netdb.h>
  29
  30 /* These references force linking the executable against central
  31    functions in the static libraries, pulling significant parts of
  32    each library into the link.  */
  33 void *references[] =
  34   {
  35     &pow,                       /* libm */
  36     &pthread_create,            /* libpthread */
  37 #if USE_CRYPT
  38     &crypt,                     /* libcrypt */
  39 #endif
  40     &res_send,                  /* libresolv */
  41     &dlopen,                    /* libdl */
  42     &login,                     /* libutil */
  43     &aio_init,                  /* librt */
  44     &getaddrinfo_a,             /* libanl */
  45   };
  46
  47 static int
  48 do_test (void)
  49 {
  50   /* This is a link-time test.  There is nothing to run here.  */
  51   return 0;
  52 }
  53
  54 #include <support/test-driver.c>