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#!/usr/bin/python3
#
# Copyright (C) 2021 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# This script runs dex2oat on the host to compile a provided JAR or APK.
#
import argparse
import itertools
import shlex
import subprocess
import os
import os.path
def run_print(lst):
return " ".join(map(shlex.quote, lst))
def parse_args():
parser = argparse.ArgumentParser(
description="compile dex or jar files",
epilog="Unrecognized options are passed on to dex2oat unmodified.")
parser.add_argument(
"--dex2oat",
action="store",
default=os.path.expandvars("$ANDROID_HOST_OUT/bin/dex2oatd64"),
help="selects the dex2oat to use.")
parser.add_argument(
"--debug",
action="store_true",
default=False,
help="launches dex2oatd with lldb-server g :5039. Connect using vscode or remote lldb"
)
parser.add_argument(
"--profman",
action="store",
default=os.path.expandvars("$ANDROID_HOST_OUT/bin/profmand"),
help="selects the profman to use.")
parser.add_argument(
"--debug-profman",
action="store_true",
default=False,
help="launches profman with lldb-server g :5039. Connect using vscode or remote lldb"
)
profs = parser.add_mutually_exclusive_group()
profs.add_argument(
"--profile-file",
action="store",
help="Use this profile file. Probably want to pass --compiler-filter=speed-profile with this."
)
profs.add_argument(
"--profile-line",
action="append",
default=[],
help="functions to add to a profile. Probably want to pass --compiler-filter=speed-profile with this. All functions are marked as 'hot'. Use --profile-file for more control."
)
parser.add_argument(
"--add-bcp",
action="append",
default=[],
nargs=2,
metavar=("BCP_FILE", "BCP_LOCATION"),
help="File and location to add to the boot-class-path. Note no deduplication is attempted."
)
parser.add_argument(
"--arch",
action="store",
choices=["arm", "arm64", "x86", "x86_64", "host64", "host32"],
default="host64",
help="architecture to compile for. Defaults to host64")
parser.add_argument(
"--odex-file",
action="store",
help="odex file to write. File discarded if not set",
default=None)
parser.add_argument(
"--save-profile",
action="store",
type=argparse.FileType("w"),
default=None,
help="File path to store the profile to")
parser.add_argument(
"dex_files", help="dex/jar files", nargs="+", metavar="DEX")
return parser.parse_known_args()
def get_bcp_runtime_args(additions, image, arch):
add_files = map(lambda a: a[0], additions)
add_locs = map(lambda a: a[1], additions)
if arch != "host32" and arch != "host64":
args = [
"art/tools/host_bcp.sh",
os.path.expandvars(
"${{OUT}}/system/framework/oat/{}/services.odex".format(arch)),
"--use-first-dir"
]
print("Running: {}".format(run_print(args)))
print("=START=======================================")
res = subprocess.run(args, capture_output=True, text=True)
print("=END=========================================")
if res.returncode != 0:
print("Falling back to com.android.art BCP")
args = [
"art/tools/host_bcp.sh",
os.path.expandvars(
"${{OUT}}/apex/com.android.art.debug/javalib/{}/boot.oat".format(arch)),
"--use-first-dir"
]
print("Running: {}".format(run_print(args)))
print("=START=======================================")
res = subprocess.run(args, capture_output=True, text=True)
print("=END=========================================")
res.check_returncode()
segments = res.stdout.split()
def extend_bcp(segment: str):
# TODO We should make the bcp have absolute paths.
if segment.startswith("-Xbootclasspath:"):
return ":".join(itertools.chain((segment,), add_files))
elif segment.startswith("-Xbootclasspath-locations:"):
return ":".join(itertools.chain((segment,), add_locs))
else:
return segment
return list(map(extend_bcp, segments))
else:
# Host we just use the bcp locations for both.
res = open(
os.path.expandvars(
"$ANDROID_HOST_OUT/apex/art_boot_images/javalib/{}/boot.oat".format(
"x86" if arch == "host32" else "x86_64")), "rb").read()
bcp_tag = b"bootclasspath\0"
bcp_start = res.find(bcp_tag) + len(bcp_tag)
bcp = res[bcp_start:bcp_start + res[bcp_start:].find(b"\0")]
img_bcp = bcp.decode()
# TODO We should make the str_bcp have absolute paths.
str_bcp = ":".join(itertools.chain((img_bcp,), add_files))
str_bcp_loc = ":".join(itertools.chain((img_bcp,), add_locs))
return [
"--runtime-arg", "-Xbootclasspath:{}".format(str_bcp),
"--runtime-arg", "-Xbootclasspath-locations:{}".format(str_bcp_loc)
]
def fdfile(fd):
return "/proc/{}/fd/{}".format(os.getpid(), fd)
def get_profile_args(args, location_base):
"""Handle all the profile file options."""
if args.profile_file is None and len(args.profile_line) == 0:
return []
if args.profile_file:
with open(args.profile_file, "rb") as prof:
prof_magic = prof.read(4)
if prof_magic == b'pro\0':
# Looks like the profile-file is a binary profile. Just use it directly
return ['--profile-file={}'.format(args.profile_file)]
if args.debug_profman:
profman_args = ["lldb-server", "g", ":5039", "--", args.profman]
else:
profman_args = [args.profman]
if args.save_profile:
prof_out_fd = args.save_profile.fileno()
os.set_inheritable(prof_out_fd, True)
else:
prof_out_fd = os.memfd_create("reference_prof", flags=0)
if args.debug_profman:
profman_args.append("--reference-profile-file={}".format(
fdfile(prof_out_fd)))
else:
profman_args.append("--reference-profile-file-fd={}".format(prof_out_fd))
if args.profile_file:
profman_args.append("--create-profile-from={}".format(args.profile_file))
else:
prof_in_fd = os.memfd_create("input_prof", flags=0)
# Why on earth does fdopen take control of the fd and not mention it in the docs.
with os.fdopen(os.dup(prof_in_fd), "w") as prof_in:
for l in args.profile_line:
print(l, file=prof_in)
profman_args.append("--create-profile-from={}".format(fdfile(prof_in_fd)))
for f in args.dex_files:
profman_args.append("--apk={}".format(f))
profman_args.append("--dex-location={}".format(
os.path.join(location_base, os.path.basename(f))))
print("Running: {}".format(run_print(profman_args)))
print("=START=======================================")
subprocess.run(profman_args, close_fds=False).check_returncode()
print("=END=========================================")
if args.debug:
return ["--profile-file={}".format(fdfile(prof_out_fd))]
else:
return ["--profile-file={}".format(fdfile(prof_out_fd))]
def main():
args, extra = parse_args()
if args.arch == "host32" or args.arch == "host64":
location_base = os.path.expandvars("${ANDROID_HOST_OUT}/framework/")
real_arch = "x86" if args.arch == "host32" else "x86_64"
boot_image = os.path.expandvars(
"$ANDROID_HOST_OUT/apex/art_boot_images/javalib/boot.art")
android_root = os.path.expandvars("$ANDROID_HOST_OUT")
for f in args.dex_files:
extra.append("--dex-location={}".format(
os.path.join(location_base, os.path.basename(f))))
extra.append("--dex-file={}".format(f))
else:
location_base = "/system/framework"
real_arch = args.arch
boot_image = os.path.expandvars(":".join([
"${OUT}/apex/art_boot_images/javalib/boot.art",
"${OUT}/system/framework/boot-framework.art"
]))
android_root = os.path.expandvars("$OUT/system")
for f in args.dex_files:
extra.append("--dex-location={}".format(
os.path.join(location_base, os.path.basename(f))))
extra.append("--dex-file={}".format(f))
extra += get_bcp_runtime_args(args.add_bcp, boot_image, args.arch)
extra += get_profile_args(args, location_base)
extra.append("--instruction-set={}".format(real_arch))
extra.append("--boot-image={}".format(boot_image))
extra.append("--android-root={}".format(android_root))
extra += ["--runtime-arg", "-Xms64m", "--runtime-arg", "-Xmx512m"]
if args.odex_file is not None:
extra.append("--oat-file={}".format(args.odex_file))
else:
if args.debug:
raise Exception("Debug requires a real output file. :(")
extra.append("--oat-fd={}".format(os.memfd_create("odex_fd", flags=0)))
extra.append("--oat-location={}".format("/tmp/odex_fd.odex"))
extra.append("--output-vdex-fd={}".format(
os.memfd_create("vdex_fd", flags=0)))
pre_args = []
if args.debug:
pre_args = ["lldb-server", "g", ":5039", "--"]
pre_args.append(args.dex2oat)
print("Running: {}".format(run_print(pre_args + extra)))
print("=START=======================================")
subprocess.run(pre_args + extra, close_fds=False).check_returncode()
print("=END=========================================")
if __name__ == "__main__":
main()