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get_symbols() plugin API tweak to support --start-lib/--end-lib.

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Let the plugin know that a file is not being included in the link by
returning LDPS_NO_SYMS from get_symbols().

include/
	* plugin-api.h (enum ld_plugin_tag): Add LDPT_GET_SYMBOLS_V3.

gold/
	* plugin.h (Pluginobj::get_symbol_resolution_info): Add version
	parameter.
	* plugin.cc (get_symbols_v3): New function.
	(Plugin::load): Add LDPT_GET_SYMBOLS_V3.
	(Pluginobj::get_symbol_resolution_info): Return LDPS_NO_SYMS when using
	new version.
This commit is contained in:
Evgenii Stepanov
2016-03-03 11:36:36 -08:00
committed by Cary Coutant
parent bdf7e23048
commit 95ecdfbfcb
10 changed files with 175 additions and 18 deletions
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52
gold/testsuite/plugin_test_start_lib.sh Executable file
View File

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#!/bin/sh
# plugin_test_start_lib.sh -- a test case for the plugin API.
# Copyright 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 Free Software
# Foundation, Inc.
# Written by Evgenii Stepanov <eugenis@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.
# This file goes with plugin_test_1.c, a simple plug-in library that
# exercises the basic interfaces and prints out version numbers and
# options passed to the plugin.
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 plugin_test_start_lib.err "API version:"
check plugin_test_start_lib.err "gold version:"
check plugin_test_start_lib.err "plugin_start_lib_test.o: claim file hook called"
check plugin_test_start_lib.err "plugin_start_lib_test_2.syms: claim file hook called"
check plugin_test_start_lib.err "plugin_start_lib_test_2.syms: claiming file, adding 1 symbols"
check plugin_test_start_lib.err "all symbols read hook called"
check plugin_test_start_lib.err "plugin_start_lib_test_2.syms: no symbols"
check plugin_test_start_lib.err "cleanup hook called"
exit 0