elf/tst-auxobj-dlopen.c

   1 /* Test for BZ#16272, dlopen'ing an auxiliary filter object.
   2    Ensure that symbols from the resolve correctly.
   3
   4    Copyright (C) 2020 Free Software Foundation, Inc.
   5    This file is part of the GNU C Library.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, see
  19    <https://www.gnu.org/licenses/>.  */
  20
  21 #include <stdio.h>
  22 #include <support/check.h>
  23 #include <support/xdlfcn.h>
  24
  25 static int do_test (void)
  26 {
  27   void *lib = xdlopen ("tst-filterobj-aux.so", RTLD_LAZY);
  28   char *(*fn)(void) = xdlsym (lib, "get_text");
  29   const char* text = fn ();
  30
  31   printf ("%s\n", text);
  32
  33   /* Verify the text matches what we expect from the filtee */
  34   TEST_COMPARE_STRING (text, "Hello from filtee (PASS)");
  35
  36   fn = xdlsym (lib, "get_text2");
  37   text = fn ();
  38
  39   printf ("%s\n", text);
  40
  41   /* Verify the text matches what we expect from the auxiliary object */
  42   TEST_COMPARE_STRING (text, "Hello from auxiliary filter object (PASS)");
  43
  44   return 0;
  45 }
  46
  47 #include <support/test-driver.c>