16164a6b00
segments. 2012-08-24 Sriraman Tallam <tmsriram@google.com> * gold.cc (queue_middle_tasks): Call layout again when unique segments for sections is desired. * layout.cc (Layout::Layout): Initialize new members. (Layout::get_output_section_flags): New function. (Layout::choose_output_section): Call get_output_section_flags. (Layout::layout): Make output section for mapping to a unique segment. (Layout::insert_section_segment_map): New function. (Layout::attach_allocated_section_to_segment): Make unique segment for output sections marked so. (Layout::segment_precedes): Check for unique segments when sorting. * layout.h (Layout::Unique_segment_info): New struct. (Layout::Section_segment_map): New typedef. (Layout::insert_section_segment_map): New function. (Layout::get_output_section_flags): New function. (Layout::is_unique_segment_for_sections_specified): New function. (Layout::set_unique_segment_for_sections_specified): New function. (Layout::unique_segment_for_sections_specified_): New member. (Layout::section_segment_map_): New member. * object.cc (Sized_relobj_file<size, big_endian>::do_layout): Rename is_gc_pass_one to is_pass_one. Rename is_gc_pass_two to is_pass_two. Rename is_gc_or_icf to is_two_pass. Check for which pass based on whether symbols data is present. Make it two pass when unique segments for sections is desired. * output.cc (Output_section::Output_section): Initialize new members. * output.h (Output_section::is_unique_segment): New function. (Output_section::set_is_unique_segment): New function. (Output_section::is_unique_segment_): New member. (Output_section::extra_segment_flags): New function. (Output_section::set_extra_segment_flags): New function. (Output_section::extra_segment_flags_): New member. (Output_section::segment_alignment): New function. (Output_section::set_segment_alignment): New function. (Output_section::segment_alignment_): New member. (Output_segment::Output_segment): Initialize is_unique_segment_. (Output_segment::is_unique_segment): New function. (Output_segment::set_is_unique_segment): New function. (Output_segment::is_unique_segment_): New member. * plugin.cc (allow_unique_segment_for_sections): New function. (unique_segment_for_sections): New function. (Plugin::load): Add new functions to transfer vector. * Makefile.am (plugin_final_layout.readelf.stdout): Add readelf output. * Makefile.in: Regenerate. * testsuite/plugin_final_layout.sh: Check if unique segment functionality works. * testsuite/plugin_section_order.c (onload): Check if new interfaces are available. (allow_unique_segment_for_sections): New global. (unique_segment_for_sections): New global. (claim_file_hook): Call allow_unique_segment_for_sections. (all_symbols_read_hook): Call unique_segment_for_sections. 2012-08-24 Sriraman Tallam <tmsriram@google.com> * plugin-api.h (ld_plugin_allow_unique_segment_for_sections): New interface. (ld_plugin_unique_segment_for_sections): New interface. (LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val. (LDPT_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val. (tv_allow_unique_segment_for_sections): New member. (tv_unique_segment_for_sections): New member.
90 lines
2.3 KiB
Bash
Executable file
90 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
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# plugin_final_layout.sh -- test
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# Copyright 2011 Free Software Foundation, Inc.
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# Written by Sriraman Tallam <tmsriram@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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# The goal of this program is to verify if --section-ordering-file works as
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# intended. File final_layout.cc is in this test.
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set -e
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check()
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{
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awk "
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BEGIN { saw1 = 0; saw2 = 0; err = 0; }
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/.*$2\$/ { saw1 = 1; }
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/.*$3\$/ {
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saw2 = 1;
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if (!saw1)
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{
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printf \"layout of $2 and $3 is not right\\n\";
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err = 1;
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exit 1;
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}
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}
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END {
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if (!saw1 && !err)
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{
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printf \"did not see $2\\n\";
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exit 1;
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}
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if (!saw2 && !err)
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{
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printf \"did not see $3\\n\";
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exit 1;
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}
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}" $1
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}
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# With readelf -l, an ELF Section to Segment mapping is printed as :
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##############################################
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# Section to Segment mapping:
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# Segment Sections...
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# ...
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# 0x .text.plugin_created_unique
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# ...
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##############################################
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# Check of .text.plugin_created_unique is the only section in the segment.
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check_unique_segment()
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{
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awk "
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BEGIN { saw_section = 0; saw_unique = 0; }
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/$2/ { saw_section = 1; }
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/[ ]*0[0-9][ ]*$2[ ]*\$/ { saw_unique = 1; }
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END {
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if (!saw_section)
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{
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printf \"Section $2 not seen in output\\n\";
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exit 1;
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}
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else if (!saw_unique)
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{
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printf \"Unique segment not seen for: $2\\n\";
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exit 1;
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}
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}" $1
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}
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check plugin_final_layout.stdout "_Z3foov" "_Z3barv"
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check plugin_final_layout.stdout "_Z3barv" "_Z3bazv"
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check_unique_segment plugin_final_layout_readelf.stdout ".text.plugin_created_unique"
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