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Add new plugin hooks to support querying section alignment and size.

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include/
2016-03-03  Than McIntosh <thanm@google.com>

	* plugin-api.h: Add new hooks to the plugin transfer vector to
	to support querying section alignment and section size.
	(ld_plugin_get_input_section_alignment): New hook.
	(ld_plugin_get_input_section_size): New hook.
	(ld_plugin_tag): Add LDPT_GET_INPUT_SECTION_ALIGNMENT
	and LDPT_GET_INPUT_SECTION_SIZE.
	(ld_plugin_tv): Add tv_get_input_section_alignment and
	tv_get_input_section_size.

gold/
2016-03-03  Than McIntosh  <thanm@google.com>

	* plugin.cc (Plugin::load): Include hooks for get_input_section_size
	and get_input_section_alignment in transfer vector.
	(get_input_section_alignment): New function.
	(get_input_section_size): New function.
	* testsuite/Makefile.am: Add plugin_layout_with_alignment.sh test.
	* testsuite/Makefile.in: [Regenerate.]
	* testsuite/plugin_section_alignment.cc: New test file.
	* testsuite/plugin_layout_with_alignment.cc: New test file.
	* testsuite/plugin_layout_with_alignment.sh: New test file.
This commit is contained in:
Cary Coutant
2016-03-03 12:09:06 -08:00
parent 95ecdfbfcb
commit 82838bd626
7 changed files with 530 additions and 5 deletions
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66
gold/testsuite/plugin_layout_with_alignment.sh Normal file
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#!/bin/sh
# plugin_layout_with_alignment.sh -- test
# Copyright (C) 2016 Free Software Foundation, Inc.
# Written by Than McIntosh <thanm@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.
# The goal of this program is to verify plugin alignment and size
# interfaces and working correctly in combination with section ordering.
# intended. File plugin_layout_with_alignment.cc is in this test.
set -e
check()
{
awk "
BEGIN { saw1 = 0; saw2 = 0; saw3 = 0; saw4 = 0; counter = 1; err = 0; ord = \"\"; }
/.*$2\$/ { saw1 = counter; counter = counter + 1; ord = ord \" $2\"; }
/.*$3\$/ { saw2 = counter; counter = counter + 1; ord = ord \" $3\"; }
/.*$4\$/ { saw3 = counter; counter = counter + 1; ord = ord \" $4\"; }
/.*$5\$/ { saw4 = counter; counter = counter + 1; ord = ord \" $5\"; }
END {
if (!saw1) {
printf \"did not see $2\\n\";
exit 1;
}
if (!saw2) {
printf \"did not see $3\\n\";
exit 1;
}
if (!saw3) {
printf \"did not see $4\\n\";
exit 1;
}
if (!saw4) {
printf \"did not see $5\\n\";
exit 1;
}
if (saw1 != 1 || saw2 != 2 || saw3 != 3 || saw4 != 4) {
printf \"incorrect ordering:\\nwas:%s\\nshould have been: $2 $3 $4 $5\\n\", ord;
exit 1;
}
}" $1
}
check plugin_layout_with_alignment.stdout "bss_item3" "bss_item1" "bss_item4" "bss_item2"
check plugin_layout_with_alignment.stdout "rwdata_item2" "rwdata_item4" "rwdata_item1" "rwdata_item3"
check plugin_layout_with_alignment.stdout "rodata_item3" "rodata_item1" "rodata_item2" "rodata_item4"