binutils-gdb/gold/testsuite/text_section_grouping.cc
Sriraman Tallam 28f2a4ac6f Group text sections with prefixes .text.unlikely,.text.hot and .text.startup
by default.


2012-12-18  Sriraman Tallam  <tmsriram@google.com>

	* layout.cc (Layout::is_section_name_prefix_grouped): New function.
	* layout.h (Layout::is_section_name_prefix_grouped): New function.
	* output.cc (Output_section::add_input_section): Check if section
	name contains special prefix.  Keep input sections to sort such
	sections.
	(Output_section::Input_section_sort_section_order_index_compare
	 ::operator()): Group sections according to prefixes.
	* (Output_section::sort_attached_input_sections): Add condition
	to Input_section_entry constructor call.
	* testsuite/Makefile.am (text_section_grouping): New test.
	* testsuite/Makefile.in: Regenerate.
	* testsuite/text_section_grouping.cc: New file.
	* testsuite/text_section_grouping.sh: New file.
2012-12-19 02:55:15 +00:00

73 lines
1.6 KiB
C++

// text_section_grouping.cc -- a test case for gold
// Copyright 2012 Free Software Foundation, Inc.
// Written by Sriraman Tallam <tmsriram@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 if .text sections are grouped
// according to prefix. .text.unlikely, .text.startup and .text.hot should
// be grouped and placed together.
extern "C"
__attribute__ ((section(".text.hot.foo")))
int hot_foo()
{
return 1;
}
extern "C"
__attribute__ ((section(".text.startup.foo")))
int startup_foo()
{
return 1;
}
extern "C"
__attribute__ ((section(".text.unlikely.foo")))
int unlikely_foo()
{
return 1;
}
extern "C"
__attribute__ ((section(".text.hot.bar")))
int hot_bar()
{
return 1;
}
extern "C"
__attribute__ ((section(".text.startup.bar")))
int startup_bar()
{
return 1;
}
extern "C"
__attribute__ ((section(".text.unlikely.bar")))
int unlikely_bar()
{
return 1;
}
int main()
{
return 1;
}