gdb/testsuite/gdb.base/share-env-with-gdbserver.c

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2017-2022 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20
  21 /* Wrapper around getenv for GDB.  */
  22
  23 static const char *
  24 my_getenv (const char *name)
  25 {
  26   return getenv (name);
  27 }
  28
  29 int
  30 main (int argc, char *argv[])
  31 {
  32   /* Call malloc to ensure it is linked in.  */
  33   char *tmp = (char *) malloc (1);
  34   /* Similarly call my_getenv instead of getenv directly to make sure
  35      the former isn't optimized out.  my_getenv is called by GDB.  */
  36   const char *myvar = my_getenv ("GDB_TEST_VAR");
  37
  38   if (myvar != NULL)
  39     printf ("It worked!  myvar = '%s'\n", myvar);
  40   else
  41     printf ("It failed.");
  42
  43   free (tmp);
  44   return 0;     /* break-here */
  45 }