binutils-gdb/gold/testsuite/icf_safe_so_test.cc
Alan Modra 6d53c0962c Update year range in copyright notice of binutils files
The newer update-copyright.py fixes file encoding too, removing cr/lf
on binutils/bfdtest2.c and ld/testsuite/ld-cygwin/exe-export.exp, and
embedded cr in binutils/testsuite/binutils-all/ar.exp string match.
2023-01-04 22:14:02 +10:30

83 lines
1.8 KiB
C++

// icf_safe_so_test.cc -- a test case for gold
// Copyright (C) 2010-2023 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;
}
static int
bar_static()
{
return 2;
}
int main()
{
int (*p)() = foo_glob;
(void)p;
p = bar_static;
(void)p;
foo_static();
foo_prot();
foo_hidden();
foo_internal();
return 0;
}