Pedro Alves 7f03bd92e3 PPC64: Fix gdb.arch/ppc64-atomic-inst.exp with displaced stepping
The ppc64 displaced step code can't handle atomic sequences.  Fallback
to stepping over the breakpoint in-line if we detect one.

gdb/ChangeLog:
2015-08-07  Pedro Alves  <palves@redhat.com>

	* infrun.c (displaced_step_prepare_throw): Return -1 if
	gdbarch_displaced_step_copy_insn returns NULL.  Update intro
	comment.
	* rs6000-tdep.c (LWARX_MASK, LWARX_INSTRUCTION, LDARX_INSTRUCTION)
	(STWCX_MASK, STWCX_INSTRUCTION, STDCX_INSTRUCTION): Move higher up
	in file.
	(ppc_displaced_step_copy_insn): New function.
	(ppc_displaced_step_fixup): Update comment.
	(rs6000_gdbarch_init): Install ppc_displaced_step_copy_insn as
	gdbarch_displaced_step_copy_insn hook.
	* gdbarch.sh (displaced_step_copy_insn): Document what happens on
	NULL return.
	* gdbarch.h: Regenerate.

gdb/testsuite/ChangeLog:
2015-08-07  Pedro Alves  <palves@redhat.com>

	* gdb.arch/ppc64-atomic-inst.exp (do_test): New procedure, move
	tests here.
	(top level): Run do_test with and without displaced stepping.
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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.
Description
Yggdrasil port of GNU Binutils
Readme 418 MiB