old-cross-binutils/gold/testsuite/icf_safe_so_test.cc
Sriraman Tallam 0897ed3bdb * i386.cc (Target_i386::can_check_for_function_pointers): New function.
(Scan::possible_function_pointer_reloc): New function.
	(Scan::local_reloc_may_be_function_pointer): Change to call
	possible_function_pointer_reloc.
	(Scan::global_reloc_may_be_function_pointer): Ditto.
	* icf.h (Icf::check_section_for_function_pointers): Change to reject
	relocations in ".data.rel.ro._ZTV" section.
	* testsuite/icf_safe_so_test.sh: Change to pass i386.
	* testsuite/icf_safe_so_test.cc: Ditto.
	* testsuite/icf_safe_test.cc: Ditto.
	* testsuite/icf_safe_test.sh: Ditto.
2010-03-04 01:33:22 +00:00

74 lines
1.7 KiB
C++

// icf_safe_so_test.cc -- a test case for gold
// Copyright 2010 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. For x86-64,
// foo_glob and bar_glob should be folded as their function pointers
// are addresses of PLT entries in shared objects. For 32-bit X86,
// the hidden protected and internal symbols can be folded.
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;
}