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      1 // protected_1.cc -- a test case for gold
      2 
      3 // Copyright (C) 2008-2014 Free Software Foundation, Inc.
      4 // Written by Ian Lance Taylor <iant (at) 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 // The function f1 is protected, which means that other callers in the
     24 // same shared library will call this version.
     25 
     26 int
     27 f1() __attribute__ ((__visibility__ ("protected")));
     28 
     29 int
     30 f1()
     31 {
     32   return 1;
     33 }
     34 
     35 // The function f2 is used to test that the executable can see the
     36 // same function address for a protected function in the executable
     37 // and in the shared library.  We can't use the visibility attribute
     38 // here, becaues that may cause gcc to generate a PC relative reloc;
     39 // we need it to get the value from the GOT.  I'm not sure this is
     40 // really useful, given that it doesn't work with the visibility
     41 // attribute.  This test exists here mainly because the glibc
     42 // testsuite has the same test, and we want to make sure that gold
     43 // passes the glibc testsuite.
     44 
     45 extern "C" int f2();
     46 asm(".protected f2");
     47 
     48 extern "C" int
     49 f2()
     50 {
     51   return 2;
     52 }
     53 
     54 int
     55 (*get_f2_addr())()
     56 {
     57   return f2;
     58 }
     59