1  /* Basic tests for DT_RELR.
       2     Copyright (C) 2022-2023 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
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the 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; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <link.h>
      20  #include <stdbool.h>
      21  #include <array_length.h>
      22  #include <support/check.h>
      23  
      24  static int o, x;
      25  
      26  #define ELEMS O O O O O O O O X X X X X X X O O X O O X X X E X E E O X O E
      27  #define E 0,
      28  
      29  #define O &o,
      30  #define X &x,
      31  void *arr[] = { ELEMS };
      32  #undef O
      33  #undef X
      34  
      35  #define O 1,
      36  #define X 2,
      37  static char val[] = { ELEMS };
      38  
      39  static int
      40  do_test (void)
      41  {
      42    ElfW(Dyn) *d = _DYNAMIC;
      43    if (d)
      44      {
      45        bool has_relr = false;
      46        for (; d->d_tag != DT_NULL; d++)
      47  	if (d->d_tag == DT_RELR)
      48  	  has_relr = true;
      49  
      50  #if defined __PIE__ || defined __pie__ || defined PIE || defined pie
      51        TEST_VERIFY (has_relr);
      52  #else
      53        TEST_VERIFY (!has_relr);
      54  #endif
      55      }
      56  
      57    for (int i = 0; i < array_length (arr); i++)
      58      TEST_VERIFY ((arr[i] == 0 && val[i] == 0)
      59  		 || (arr[i] == &o && val[i] == 1)
      60  		 || (arr[i] == &x && val[i] == 2));
      61  
      62    return 0;
      63  }
      64  
      65  #include <support/test-driver.c>