| // icf_safe_so_test.cc -- a test case for gold |
| |
| // Copyright (C) 2010-2019 Free Software Foundation, Inc. |
| // Written by Sriraman Tallam <tmsriram@google.com>. |
| |
| // This file is part of gold. |
| |
| // This program is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 3 of the License, or |
| // (at your option) any later version. |
| |
| // This program is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License |
| // along with this program; if not, write to the Free Software |
| // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
| // MA 02110-1301, USA. |
| |
| // The goal of this program is to verify if identical code folding |
| // in safe mode correctly folds functions in a shared object. The |
| // foo_* functions below should not be folded on X86_64. |
| // For 32-bit X86, the hidden protected and internal symbols can be folded. |
| // foo_glob and bar_glob should not be folded, because function pointer |
| // of foo_glob is taken. |
| |
| int __attribute__ ((visibility ("protected"))) |
| foo_prot() |
| { |
| return 1; |
| } |
| |
| int __attribute__ ((visibility ("hidden"))) |
| foo_hidden() |
| { |
| return 1; |
| } |
| |
| int __attribute__ ((visibility ("internal"))) |
| foo_internal() |
| { |
| return 1; |
| } |
| |
| static int |
| foo_static() |
| { |
| return 1; |
| } |
| |
| int foo_glob() |
| { |
| return 2; |
| } |
| |
| int bar_glob() |
| { |
| return 2; |
| } |
| |
| int main() |
| { |
| int (*p)() = foo_glob; |
| (void)p; |
| foo_static(); |
| foo_prot(); |
| foo_hidden(); |
| foo_internal(); |
| return 0; |
| } |
| |