elf/tst-relr.c

   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>