Alan Modra 31b4d3a16f PR28824, relro security issues, x86 keep COMMONPAGESIZE relro
x86 treats MAXPAGESIZE as a memory optimisation parameter, actual
hardware paging is always COMMPAGESIZE of 4k.  Use COMMONPAGESIZE for
the end of the relro segment alignment.

The previous patch regresses pr18176, increasing the testcase file
size from 322208 to 2099872 bytes.  Fixing this on x86 will require
introducing a gap after the end of the relro segment (of up to
relropagesize-1 bytes).

	PR 28824
	PR 18176
	* ld.h (ld_config_type): Add relro_use_commonpagesize field.
	* ldexp.c (fold_segment_align): Set relropagesize depending on
	relro_use_commonpagesize.
	* emultempl/elf-x86.em (elf_x86_create_output_section_statements):
	Set relro_use_commonpagesize.
	* testsuite/ld-x86-64/pr18176.d: xfail.
2022-02-13 14:00:56 +10:30
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.
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