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'''
Arm FS simulation tests
'''

from os.path import join as joinpath

from testlib import *

import re

arm_fs_kvm_tests = [
    'realview64-kvm',
    'realview64-kvm-dual',
]

arm_fs_quick_tests = [
    'realview64-simple-atomic',
    'realview64-simple-atomic-dual',
    'realview64-simple-atomic-checkpoint',
    'realview64-simple-timing',
    'realview64-simple-timing-dual',
    'realview64-switcheroo-atomic',
    'realview64-switcheroo-timing',
] + arm_fs_kvm_tests

arm_fs_long_tests = [
    'realview-simple-atomic',
    'realview-simple-atomic-checkpoint',
    'realview-simple-timing',
    'realview-switcheroo-atomic',
    'realview-switcheroo-timing',
    'realview-o3',
    'realview-minor',
    'realview-switcheroo-noncaching-timing',
    'realview-switcheroo-o3',
    'realview-switcheroo-full',
    'realview64-o3',
    'realview64-o3-checker',
    'realview64-o3-dual',
    'realview64-minor',
    'realview64-minor-dual',
    'realview64-switcheroo-o3',
    'realview64-switcheroo-full',
    'realview-simple-timing-ruby',
    'realview64-simple-timing-ruby',
    'realview64-simple-timing-dual-ruby',


    # The following tests fail. These are recorded in the GEM5-640
    # Jira issue.
    #
    # https://gem5.atlassian.net/browse/GEM5-640
    #'realview-simple-atomic-dual',
    #'realview-simple-timing-dual',
    #'realview-o3-dual',
    #'realview-minor-dual',
    #'realview-simple-timing-dual-ruby',
]

tarball = 'aarch-system-20210904.tar.bz2'
url = config.resource_url + "/arm/" + tarball
filepath = os.path.dirname(os.path.abspath(__file__))
path = joinpath(config.bin_path, 'arm')
arm_fs_binaries = DownloadedArchive(url, path, tarball)

def support_kvm():
    return os.access("/dev/kvm", os.R_OK | os.W_OK)

def verifier_list(name):
    verifiers=[]
    if "dual" in name:
        verifiers.append(verifier.MatchFileRegex(
            re.compile(r'.*CPU1: Booted secondary processor.*'),
            ["system.terminal"]))

    return verifiers

for name in arm_fs_quick_tests:
    if name in arm_fs_kvm_tests:
        # The current host might not be supporting KVM
        # Skip the test if that's the case
        if not support_kvm():
            continue

        # Run KVM test if we are on an arm host only
        valid_hosts = (constants.host_arm_tag,)
    else:
        valid_hosts = constants.supported_hosts

    args = [
        joinpath(config.base_dir, 'tests', 'gem5', 'configs', name + '.py'),
        path,
        config.base_dir
    ]
    gem5_verify_config(
        name=name,
        verifiers=verifier_list(name), # Add basic stat verifiers
        config=joinpath(filepath, 'run.py'),
        config_args=args,
        valid_isas=(constants.arm_tag,),
        length=constants.quick_tag,
        valid_hosts=valid_hosts,
        fixtures=(arm_fs_binaries,)
    )

for name in arm_fs_long_tests:
    args = [
        joinpath(config.base_dir, 'tests', 'gem5', 'configs', name + '.py'),
        path,
        config.base_dir
    ]
    gem5_verify_config(
        name=name,
        verifiers=verifier_list(name), # TODO: Add basic stat verifiers
        config=joinpath(filepath, 'run.py'),
        config_args=args,
        valid_isas=(constants.arm_tag,),
        length=constants.long_tag,
        fixtures=(arm_fs_binaries,)
    )