sysdeps/x86/tst-cet-legacy-1a.c

   1 /* Test for re-exec with legacy bitmap.
   2    Copyright (C) 2018-2022 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 <stdlib.h>
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <getopt.h>
  23 #include <support/check.h>
  24
  25 /* Nonzero if the program gets called via `exec'.  */
  26 static int restart;
  27
  28 #define CMDLINE_OPTIONS \
  29   { "restart", no_argument, &restart, 1 },
  30
  31 extern int do_test (int argc, char *argv[]);
  32
  33 extern int in_dso_1 (void);
  34 extern int in_dso_2 (void);
  35
  36 static int
  37 check (void)
  38 {
  39   if (in_dso_1 () != 0x1234678)
  40     {
  41       puts ("in_dso_1 () != 0x1234678");
  42       exit (1);
  43     }
  44
  45   if (in_dso_2 () != 0xbadbeef)
  46     {
  47       puts ("in_dso_2 () != 0xbadbeef");
  48       exit (1);
  49     }
  50
  51   return 0;
  52 }
  53
  54 int
  55 do_test (int argc, char *argv[])
  56 {
  57   /* We must have
  58      - one or four parameters left if called initially
  59        + path for ld.so         optional
  60        + "--library-path"       optional
  61        + the library path       optional
  62        + the application name
  63   */
  64
  65   if (restart)
  66     return check ();
  67
  68   if (argc != 2 && argc != 5)
  69     FAIL_EXIT1 ("wrong number of arguments (%d)", argc);
  70
  71   if (argc == 5)
  72     execl (argv[1], argv[1], argv[2], argv[3], argv[4], "--direct",
  73            "--restart",  NULL);
  74   else
  75     execl (argv[1], argv[1], "--direct", "--restart",  NULL);
  76
  77   return -1;
  78 }
  79
  80 #define TEST_FUNCTION_ARGV do_test
  81 #include <support/test-driver.c>