gold/testsuite/hidden_test_main.c

   1 /* hidden_test_main.c -- test hidden and internal symbols
   2
   3    Copyright (C) 2009-2021 Free Software Foundation, Inc.
   4    Written by Cary Coutant <ccoutant@google.com>
   5
   6    This file is part of gold.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.
  22
  23    This is a test of symbols of various visibilities in the main program
  24    and attempts to reference those symbols from a shared library.
  25    The linker should issue an error message for references to hidden
  26    and internal symbols.  */
  27
  28 extern void lib1 (void);
  29
  30 void main_default (void);
  31 void main_hidden (void);
  32 void main_internal (void);
  33 void main_protected (void);
  34
  35 void __attribute__((visibility ("default")))
  36 main_default (void)
  37 {
  38 }
  39
  40 void __attribute__((visibility ("hidden")))
  41 main_hidden (void)
  42 {
  43 }
  44
  45 void __attribute__((visibility ("internal")))
  46 main_internal (void)
  47 {
  48 }
  49
  50 void __attribute__((visibility ("protected")))
  51 main_protected (void)
  52 {
  53 }
  54
  55 int
  56 main (int argc __attribute__ ((unused)),
  57       char** argv __attribute__ ((unused)))
  58 {
  59   lib1 ();
  60   return 0;
  61 }