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229ecf80f3
Non-default weak undefined symbols in executable and shared library are always resolved to 0 at runtime and don't need dynamic relocation. Tested on i686, x86-64, powerpc64le and aarch64. PR gold/32071 * symtab.cc (Symbol::final_value_is_known): Always resolve non-default weak undefined symbol in executable and shared library to 0 at runtime. * symtab.h (Symbol::needs_dynamic_reloc): Return false for non-default weak undefined symbol in executable and shared library. * testsuite/Makefile.am: Add weak_undef_test_3 and weak_undef_test_4 tests. * testsuite/Makefile.in: Regenerated. * testsuite/weak_undef_lib_4.c: New file. * testsuite/weak_undef_test_3.c: Likewise. * testsuite/weak_undef_test_4.c: Likewise. Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* weak_undef_lib_4.c -- test non-default weak undefined symbol in DSO.
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Copyright (C) 2024 Free Software Foundation, Inc.
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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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/* Non-default weak undefined symbol in DSO should be resolved to 0 at
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runtime. */
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#include <stdlib.h>
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extern void undefined (void) __attribute__((visibility("hidden"))) __attribute__((weak));
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extern void protected (void) __attribute__((visibility("protected"))) __attribute__((weak));
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extern void foo (void);
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void
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foo (void)
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{
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if (&undefined != NULL)
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abort ();
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if (&protected != NULL)
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abort ();
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}
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