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#!/usr/bin/python
# Script to test different toolchains against ChromeOS benchmarks.
import optparse
import os
import sys
import build_chromeos
import setup_chromeos
from utils import command_executer
from utils import misc
from utils import logger
class GCCConfig(object):
def __init__(self, githash):
self.githash = githash
class ToolchainConfig:
def __init__(self, gcc_config=None, binutils_config=None):
self.gcc_config = gcc_config
class ChromeOSCheckout(object):
def __init__(self, board, chromeos_root):
self._board = board
self._chromeos_root = chromeos_root
self._ce = command_executer.GetCommandExecuter()
self._l = logger.GetLogger()
def _DeleteChroot(self):
command = "cd %s; cros_sdk --delete" % self._chromeos_root
return self._ce.RunCommand(command)
def _DeleteCcahe(self):
# crosbug.com/34956
command = "sudo rm -rf %s" % os.path.join(self._chromeos_root, ".cache")
return self._ce.RunCommand(command)
def _BuildAndImage(self, label=""):
if (not label or
not misc.DoesLabelExist(self._chromeos_root, self._board, label)):
build_chromeos_args = [build_chromeos.__file__,
"--chromeos_root=%s" % self._chromeos_root,
"--board=%s" % self._board,
"--rebuild"]
if self._public:
build_chromeos_args.append("--env=USE=-chrome_internal")
if label == "vanilla":
build_chromeos_args.append("--vanilla_image")
ret = build_chromeos.Main(build_chromeos_args)
if ret:
raise Exception("Couldn't build ChromeOS!")
if label:
misc.LabelLatestImage(self._chromeos_root, self._board, label)
return label
def _SetupBoard(self, env_dict):
env_string = misc.GetEnvStringFromDict(env_dict)
command = ("%s %s" %
(env_string,
misc.GetSetupBoardCommand(self._board,
usepkg=False)))
ret = self._ce.ChrootRunCommand(self._chromeos_root,
command)
assert ret == 0, "Could not setup board with new toolchain."
def _UnInstallToolchain(self):
command = ("sudo CLEAN_DELAY=0 emerge -C cross-%s/gcc" %
misc.GetCtargetFromBoard(self._board,
self._chromeos_root))
ret = self._ce.ChrootRunCommand(self._chromeos_root,
command)
if ret:
raise Exception("Couldn't uninstall the toolchain!")
def _CheckoutChromeOS(self):
# TODO(asharif): Setup a fixed ChromeOS version (quarterly snapshot).
if not os.path.exists(self._chromeos_root):
#setup_chromeos_args = [setup_chromeos.__file__,
# "--dir=%s" % self._chromeos_root,
# "--minilayout"]
setup_chromeos_args = [setup_chromeos.__file__,
"--dir=%s" % self._chromeos_root]
if self._public:
setup_chromeos_args.append("--public")
ret = setup_chromeos.Main(setup_chromeos_args)
if ret:
raise Exception("Couldn't run setup_chromeos!")
def _BuildToolchain(self, config):
self._UnInstallToolchain()
self._SetupBoard({"USE": "git_gcc",
"GCC_GITHASH": config.gcc_config.githash,
"EMERGE_DEFAULT_OPTS": "--exclude=gcc"})
class ToolchainComparator(ChromeOSCheckout):
def __init__(self, board, remotes, configs, clean, public, force_mismatch):
self._board = board
self._remotes = remotes
self._chromeos_root = "chromeos"
self._configs = configs
self._clean = clean
self._public = public
self._force_mismatch = force_mismatch
self._ce = command_executer.GetCommandExecuter()
self._l = logger.GetLogger()
ChromeOSCheckout.__init__(self, board, self._chromeos_root)
def _TestLabels(self, labels):
experiment_file = "toolchain_experiment.txt"
image_args = ""
if self._force_mismatch:
image_args = "--force-mismatch"
experiment_header = """
board: %s
remote: %s
""" % (self._board, self._remotes)
experiment_tests = """
benchmark: desktopui_PyAutoPerfTests {
iterations: 1
}
"""
with open(experiment_file, "w") as f:
print >>f, experiment_header
print >>f, experiment_tests
for label in labels:
# TODO(asharif): Fix crosperf so it accepts labels with symbols
crosperf_label = label
crosperf_label = crosperf_label.replace("-", "minus")
crosperf_label = crosperf_label.replace("+", "plus")
crosperf_label = crosperf_label.replace(".", "")
experiment_image = """
%s {
chromeos_image: %s
image_args: %s
}
""" % (crosperf_label,
os.path.join(misc.GetImageDir(self._chromeos_root, self._board),
label,
"chromiumos_test_image.bin"),
image_args)
print >>f, experiment_image
crosperf = os.path.join(os.path.dirname(__file__),
"crosperf",
"crosperf")
command = "%s --email=c-compiler-chrome %s" % (crosperf, experiment_file)
ret = self._ce.RunCommand(command)
if ret:
raise Exception("Couldn't run crosperf!")
def DoAll(self):
self._CheckoutChromeOS()
labels = []
vanilla_label = self._BuildAndImage("vanilla")
labels.append(vanilla_label)
for config in self._configs:
label = misc.GetFilenameFromString(config.gcc_config.githash)
if (not misc.DoesLabelExist(self._chromeos_root,
self._board,
label)):
self._BuildToolchain(config)
label = self._BuildAndImage(label)
labels.append(label)
self._TestLabels(labels)
if self._clean:
ret = self._DeleteChroot()
if ret: return ret
ret = self._DeleteCcahe()
if ret: return ret
return 0
def Main(argv):
"""The main function."""
# Common initializations
### command_executer.InitCommandExecuter(True)
command_executer.InitCommandExecuter()
parser = optparse.OptionParser()
parser.add_option("--remote",
dest="remote",
help="Remote machines to run tests on.")
parser.add_option("--board",
dest="board",
default="x86-zgb",
help="The target board.")
parser.add_option("--githashes",
dest="githashes",
default="master",
help="The gcc githashes to test.")
parser.add_option("--clean",
dest="clean",
default=False,
action="store_true",
help="Clean the chroot after testing.")
parser.add_option("--public",
dest="public",
default=False,
action="store_true",
help="Use the public checkout/build.")
parser.add_option("--force-mismatch",
dest="force_mismatch",
default="",
help="Force the image regardless of board mismatch")
options, _ = parser.parse_args(argv)
if not options.board:
print "Please give a board."
return 1
if not options.remote:
print "Please give at least one remote machine."
return 1
toolchain_configs = []
for githash in options.githashes.split(","):
gcc_config = GCCConfig(githash=githash)
toolchain_config = ToolchainConfig(gcc_config=gcc_config)
toolchain_configs.append(toolchain_config)
fc = ToolchainComparator(options.board, options.remote, toolchain_configs,
options.clean, options.public,
options.force_mismatch)
return fc.DoAll()
if __name__ == "__main__":
retval = Main(sys.argv)
sys.exit(retval)
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