H.J. Lu 3d9499950a Check GOTOFF reloc against protected data on x86
R_386_GOTOFF/R_X86_64_GOTOFF64 relocation shouldn't be used against
protected data symbol on x86 since with copy relocation, address of
protected data defined in the shared library may be external.

This patch will break building shared libraries with protected data
symbols using GCCs older than GCC 5 without the bug fix for

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248

GCC backport request should be made in the GCC bug report above.

bfd/

	PR ld/pr17709
	* elf32-i386.c (elf_i386_relocate_section): Also check R_386_GOTOFF
	against protected data symbol when building shared library.
	* elf64-x86-64.c (elf_x86_64_relocate_section): Also check
	R_X86_64_GOTOFF64 against protected data symbol when building
	shared library.

ld/testsuite/

	PR ld/pr17709
	* ld-i386/protected6.d: New file.
	* ld-i386/protected6.s: Likewise.
	* ld-x86-64/protected6.d: Likewise.
	* ld-x86-64/protected6.s: Likewise.
	* ld-x86-64/protected7.d: Likewise.
	* ld-x86-64/protected7.s: Likewise.
	* ld-x86-64/protected7a.d: Likewise.
	* ld-x86-64/protected7b.d: Likewise.
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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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