configs: Use absolute import paths

Use absoluate import paths to be Python 3 compatible. This also
imports absolute_import from __future__ to ensure that Python 2.7
behaves the same way as Python 3.

Change-Id: Ica06ed95814e9cd3e768b3e1785075e36f6e56d0
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/16708
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

configs: Fix Python 3 iterator and exec compatibility issues

Python 2.7 used to return lists for operations such as map and range,
this has changed in Python 3. To make the configs Python 3 compliant,
add explicit conversions from iterators to lists where needed, replace
xrange with range, and fix changes to exec syntax.

This change doesn't fix import paths since that might require us to
restructure the configs slightly.

Change-Id: Idcea8482b286779fc98b4e144ca8f54069c08024
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/16002
Reviewed-by: Gabe Black <gabeblack@google.com>

config: Switch from the print statement to the print function.

Change-Id: I701fa58cfcfa2767ce9ad24da314a053889878d0
Reviewed-on: https://gem5-review.googlesource.com/8762
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Anthony Gutierrez <anthony.gutierrez@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>

config: Add a default system disk image for SPARC FS.

When the change below removed the hard coded disk name for the SPARC FS
configuration, it broke the regression which had not specified a disk name.
This change adds a default disk name so that the regression will continue to
work like it used to, but preserving the effect of this other change.

commit 86a25bbcee88f6e69299867b6264885d738f636e
Author: Jakub Jermar <jakub@jermar.eu>
Date: Tue Jul 19 09:52:46 2016 -0500

config: Allow SPARC FS image to be specified on the command line

Change-Id: Ieb317b2bf573a4f2fc435d34cccd1f246c28d84c
Reviewed-on: https://gem5-review.googlesource.com/2645
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>

config: Specify OS type and release on command line

This patch enables users to speficy --os-type on the command
line. This option is used to take specific actions for an OS type,
such as changing the kernel command line. This patch is part of the
Android KitKat enablement.

config: add --root-device machine parameter

In case /dev/sda1 is not actually the boot partition for an image,
we can override it on the command line or in a benchmark definition.

arm, tests: Update config files to more recent kernels and create 64-bit regressions.

This changes the default ARM system to a Versatile Express-like system that supports
2GB of memory and PCI devices and updates the default kernels/file-systems for
AArch64 ARM systems (64-bit) to support up to 32GB of memory and PCI devices. Some
platforms that are no longer supported have been pruned from the configuration files.

In addition a set of 64-bit ARM regressions have been added to the regression system.

configs: add run scripts for ics/gb versions of android and bbench

1) Modifies Benchmarks.py to add support for Android ICS and BBench on Android ICS.

2) An rcS script is added for BBench on ICS.

3) Separates benchmark entries and rcS scripts for GB/ICS

4) Removes the debugging output from the existing BBench run script. These
print statements were used for debugging and they seemed to confuse users
into believing they should see some terminal output.

Config: changes to a couple of error msgs

configs: fix minor config bugs posted on the mailing list

ARM: Update config files for Android/BBench images available on website.

ARM: Add some MP regressions and clean up the disk images and kernels a bit

ARM: Include IDE/CF controller by default in PBX model.

Frame buffer and boot linux:
./build/ARM_FS/m5.opt configs/example/fs.py --benchmark=ArmLinuxFrameBuf --kernel=vmlinux.touchkit
Linux from a CF card:
./build/ARM_FS/m5.opt configs/example/fs.py --benchmark=ArmLinuxCflash --kernel=vmlinux.touchkit
Run Android
./build/ARM_FS/m5.opt configs/example/fs.py --benchmark=ArmAndroid --kernel=vmlinux.android
Run MP
./build/ARM_FS/m5.opt configs/example/fs.py --benchmark=ArmLinuxCflash --kernel=vmlinux.mp-2.6.38

Configs: Explicitly import env in Benchmarks.py

env was being implicitly imported into Benchmarks.py through SysPaths.py.
This change brings it in explicitly in the file where it's used.

X86: Change how the default disk image gets set up.

The disk image to use was always being forced to a particular value. This
change changes what disk image is selected as the default based on the
architecture being built. In the future, a more sophisticated system might be
used that selected a path based on certain rules instead of relying on one off
file names.

style: Remove non-leading tabs everywhere they shouldn't be. Developers should configure their editors to not insert tabs

add a udp stream benchmark and a udp loopback benchmark

Add mutex test to Benchmarks.py.

Rename 'Machine' to 'SysConfig'.
Clean up a little.

add annotation code to m5

configs/common/Benchmarks.py:
add annotate test app
src/SConscript:
add annotate.cc to lis
src/arch/alpha/isa/decoder.isa:
add annotate instructions
src/base/traceflags.py:
Add annotate trace flag
src/sim/pseudo_inst.cc:
src/sim/pseudo_inst.hh:
add annotate pseudo ops
util/m5/m5op.S:
util/m5/m5op.h:
add anotate ops

implement benchmark selection code