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86925eef33
* symtab.h (Symbol::is_weak_undefined): New function. (Symbol::is_strong_undefined): New function. (Symbol::is_absolute): New function. (Symbol::needs_plt_entry): Exclude weak undefined symbols. (Symbol::needs_dynamic_reloc): Exclude weak undefined and absolute symbols. * testsuite/Makefile.am (check_PROGRAMS): Add weak_undef_test. (weak_undef_test): New target. * testsuite/Makefile.in: Rebuild. * testsuite/weak_undef_file1.cc: New file. * testsuite/weak_undef_file2.cc: New file. * testsuite/weak_undef_test.cc: New file.
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
// weak_undef_file1.cc -- test handling of weak undefined symbols for gold
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// Copyright 2008 Free Software Foundation, Inc.
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// Written by Cary Coutant <ccoutant@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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// We test that we correctly deal with weak undefined symbols.
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// We need to make sure that the symbol is resolved to zero
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// by the linker and that no dynamic relocation is generated.
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// This source is used to build a shared library that defines
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// the weak undefined symbol referenced by the main program.
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// The main program will be linked with a library that does not
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// provide this definition, so that the symbol remains undefined.
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// Through the use of the embedded RPATH, the program will load
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// this alternate shared library that does define the symbol,
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// so that we can detect whether the symbol was left for runtime
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// resolution.
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#include <cstdio>
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int is_such_symbol_ = 0;
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int no_such_symbol_ = 1;
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int
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t1()
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{
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return no_such_symbol_;
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}
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