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- #!/bin/sh
- # weak_as_needed.sh -- a test case for version handling with weak symbols
- # and --as-needed libraries.
- # Copyright (C) 2018-2022 Free Software Foundation, Inc.
- # Written by Cary Coutant <ccoutant@gmail.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.
- # This test verifies that a weak reference is properly bound to
- # an as-needed library, when it is first resolved to a symbol in
- # a library that ends up being not needed.
- # Ref: https://stackoverflow.com/questions/50751421/undefined-behavior-in-shared-lib-using-libpthread-but-not-having-it-in-elf-as-d
- check()
- {
- if ! grep -q "$2" "$1"
- then
- echo "Did not find expected output in $1:"
- echo " $2"
- echo ""
- echo "Actual output below:"
- cat "$1"
- exit 1
- fi
- }
- check_missing()
- {
- if grep -q "$2" "$1"
- then
- echo "Found unexpected output in $1:"
- echo " $2"
- echo ""
- echo "Actual output below:"
- cat "$1"
- exit 1
- fi
- }
- check weak_as_needed.stdout "WEAK .* UND *bar@v2"
- check weak_as_needed.stdout "NEEDED.*weak_as_needed_c\.so"
- check_missing weak_as_needed.stdout "NEEDED.*weak_as_needed_b\.so"
- exit 0
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