0897ed3bdb
(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.
74 lines
1.7 KiB
C++
74 lines
1.7 KiB
C++
// icf_safe_so_test.cc -- a test case for gold
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// Copyright 2010 Free Software Foundation, Inc.
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// Written by Sriraman Tallam <tmsriram@google.com>.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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// The goal of this program is to verify if identical code folding
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// in safe mode correctly folds functions in a shared object. The
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// foo_* functions below should not be folded. For x86-64,
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// foo_glob and bar_glob should be folded as their function pointers
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// are addresses of PLT entries in shared objects. For 32-bit X86,
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// the hidden protected and internal symbols can be folded.
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int __attribute__ ((visibility ("protected")))
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foo_prot()
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{
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return 1;
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}
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int __attribute__ ((visibility ("hidden")))
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foo_hidden()
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{
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return 1;
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}
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int __attribute__ ((visibility ("internal")))
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foo_internal()
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{
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return 1;
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}
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static int
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foo_static()
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{
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return 1;
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}
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int foo_glob()
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{
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return 2;
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}
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int bar_glob()
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{
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return 2;
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}
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int main()
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{
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int (*p)() = foo_glob;
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(void)p;
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foo_static();
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foo_prot();
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foo_hidden();
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foo_internal();
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return 0;
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}
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