Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 688 insertions, 0 deletions

diff --git a/js/src/devtools/automation/autospider.py b/js/src/devtools/automation/autospider.py
new file mode 100755
index 0000000000..a49d2fd505
--- /dev/null
+++ b/js/src/devtools/automation/autospider.py
@@ -0,0 +1,688 @@
+#!/usr/bin/env python3
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this file,
+# You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+import argparse
+import json
+import logging
+import multiprocessing
+import os
+import platform
+import shlex
+import shutil
+import subprocess
+import sys
+from collections import Counter, namedtuple
+from logging import info
+from os import environ as env
+from pathlib import Path
+from subprocess import Popen
+from threading import Timer
+
+Dirs = namedtuple("Dirs", ["scripts", "js_src", "source", "fetches"])
+
+
+def directories(pathmodule, cwd, fixup=lambda s: s):
+    scripts = pathmodule.join(fixup(cwd), fixup(pathmodule.dirname(__file__)))
+    js_src = pathmodule.abspath(pathmodule.join(scripts, "..", ".."))
+    source = pathmodule.abspath(pathmodule.join(js_src, "..", ".."))
+    mozbuild = pathmodule.abspath(
+        # os.path.expanduser does not work on Windows.
+        env.get("MOZBUILD_STATE_PATH")
+        or pathmodule.join(Path.home(), ".mozbuild")
+    )
+    fetches = pathmodule.abspath(env.get("MOZ_FETCHES_DIR", mozbuild))
+    return Dirs(scripts, js_src, source, fetches)
+
+
+def quote(s):
+    # shlex quotes for the purpose of passing to the native shell, which is cmd
+    # on Windows, and therefore will not replace backslashed paths with forward
+    # slashes. When such a path is passed to sh, the backslashes will be
+    # interpreted as escape sequences.
+    return shlex.quote(s).replace("\\", "/")
+
+
+# Some scripts will be called with sh, which cannot use backslashed
+# paths. So for direct subprocess.* invocation, use normal paths from
+# DIR, but when running under the shell, use POSIX style paths.
+DIR = directories(os.path, os.getcwd())
+
+AUTOMATION = env.get("AUTOMATION", False)
+
+parser = argparse.ArgumentParser(description="Run a spidermonkey shell build job")
+parser.add_argument(
+    "--verbose",
+    action="store_true",
+    default=AUTOMATION,
+    help="display additional logging info",
+)
+parser.add_argument(
+    "--dep", action="store_true", help="do not clobber the objdir before building"
+)
+parser.add_argument(
+    "--keep",
+    action="store_true",
+    help="do not delete the sanitizer output directory (for testing)",
+)
+parser.add_argument(
+    "--platform",
+    "-p",
+    type=str,
+    metavar="PLATFORM",
+    default="",
+    help='build platform, including a suffix ("-debug" or "") used '
+    'by buildbot to override the variant\'s "debug" setting. The platform can be '
+    "used to specify 32 vs 64 bits.",
+)
+parser.add_argument(
+    "--timeout",
+    "-t",
+    type=int,
+    metavar="TIMEOUT",
+    default=12600,
+    help="kill job after TIMEOUT seconds",
+)
+parser.add_argument(
+    "--objdir",
+    type=str,
+    metavar="DIR",
+    # The real default must be set later so that OBJDIR can be
+    # relative to the srcdir.
+    default=env.get("OBJDIR"),
+    help="object directory",
+)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--optimize",
+    action="store_true",
+    help="generate an optimized build. Overrides variant setting.",
+)
+group.add_argument(
+    "--no-optimize",
+    action="store_false",
+    dest="optimize",
+    help="generate a non-optimized build. Overrides variant setting.",
+)
+group.set_defaults(optimize=None)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--debug",
+    action="store_true",
+    help="generate a debug build. Overrides variant setting.",
+)
+group.add_argument(
+    "--no-debug",
+    action="store_false",
+    dest="debug",
+    help="generate a non-debug build. Overrides variant setting.",
+)
+group.set_defaults(debug=None)
+group = parser.add_mutually_exclusive_group()
+group.add_argument(
+    "--jemalloc",
+    action="store_true",
+    dest="jemalloc",
+    help="use mozilla's jemalloc instead of the default allocator",
+)
+group.add_argument(
+    "--no-jemalloc",
+    action="store_false",
+    dest="jemalloc",
+    help="use the default allocator instead of mozilla's jemalloc",
+)
+group.set_defaults(jemalloc=None)
+parser.add_argument(
+    "--run-tests",
+    "--tests",
+    type=str,
+    metavar="TESTSUITE",
+    default="",
+    help="comma-separated set of test suites to add to the variant's default set",
+)
+parser.add_argument(
+    "--skip-tests",
+    "--skip",
+    type=str,
+    metavar="TESTSUITE",
+    default="",
+    help="comma-separated set of test suites to remove from the variant's default "
+    "set",
+)
+parser.add_argument(
+    "--build-only",
+    "--build",
+    dest="skip_tests",
+    action="store_const",
+    const="all",
+    help="only do a build, do not run any tests",
+)
+parser.add_argument(
+    "--nobuild",
+    action="store_true",
+    help="Do not do a build. Rerun tests on existing build.",
+)
+parser.add_argument(
+    "variant", type=str, help="type of job requested, see variants/ subdir"
+)
+args = parser.parse_args()
+
+logging.basicConfig(level=logging.INFO, format="%(message)s")
+
+env["CPP_UNIT_TESTS_DIR_JS_SRC"] = DIR.js_src
+if AUTOMATION and platform.system() == "Windows":
+    # build/win{32,64}/mozconfig.vs-latest uses TOOLTOOL_DIR to set VSPATH.
+    env["TOOLTOOL_DIR"] = DIR.fetches
+
+OBJDIR = args.objdir or os.path.join(DIR.source, "obj-spider")
+OBJDIR = os.path.abspath(OBJDIR)
+OUTDIR = os.path.join(OBJDIR, "out")
+MAKE = env.get("MAKE", "make")
+PYTHON = sys.executable
+
+for d in DIR._fields:
+    info("DIR.{name} = {dir}".format(name=d, dir=getattr(DIR, d)))
+
+
+def ensure_dir_exists(
+    name, clobber=True, creation_marker_filename="CREATED-BY-AUTOSPIDER"
+):
+    if creation_marker_filename is None:
+        marker = None
+    else:
+        marker = os.path.join(name, creation_marker_filename)
+    if clobber:
+        if (
+            not AUTOMATION
+            and marker
+            and os.path.exists(name)
+            and not os.path.exists(marker)
+        ):
+            raise Exception(
+                "Refusing to delete objdir %s because it was not created by autospider"
+                % name
+            )
+        shutil.rmtree(name, ignore_errors=True)
+    try:
+        os.mkdir(name)
+        if marker:
+            open(marker, "a").close()
+    except OSError:
+        if clobber:
+            raise
+
+
+with open(os.path.join(DIR.scripts, "variants", args.variant)) as fh:
+    variant = json.load(fh)
+
+CONFIGURE_ARGS = variant["configure-args"]
+
+compiler = variant.get("compiler")
+if compiler != "gcc" and "clang-plugin" not in CONFIGURE_ARGS:
+    CONFIGURE_ARGS += " --enable-clang-plugin"
+
+if compiler == "gcc":
+    if AUTOMATION:
+        fetches = env["MOZ_FETCHES_DIR"]
+        env["CC"] = os.path.join(fetches, "gcc", "bin", "gcc")
+        env["CXX"] = os.path.join(fetches, "gcc", "bin", "g++")
+    else:
+        env["CC"] = "gcc"
+        env["CXX"] = "g++"
+
+opt = args.optimize
+if opt is None:
+    opt = variant.get("optimize")
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-optimize" if opt else " --disable-optimize"
+
+opt = args.debug
+if opt is None:
+    opt = variant.get("debug")
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-debug" if opt else " --disable-debug"
+
+opt = args.jemalloc
+if opt is not None:
+    CONFIGURE_ARGS += " --enable-jemalloc" if opt else " --disable-jemalloc"
+
+# By default, we build with NSPR, even if not specified. But we actively allow
+# builds to disable NSPR.
+opt = variant.get("nspr")
+if opt is None or opt:
+    CONFIGURE_ARGS += " --enable-nspr-build"
+
+# Some of the variants request a particular word size (eg ARM simulators).
+word_bits = variant.get("bits")
+
+# On Linux and Windows, we build 32- and 64-bit versions on a 64 bit
+# host, so the caller has to specify what is desired.
+if word_bits is None and args.platform:
+    platform_arch = args.platform.split("-")[0]
+    if platform_arch in ("win32", "linux"):
+        word_bits = 32
+    elif platform_arch in ("win64", "linux64"):
+        word_bits = 64
+
+# Fall back to the word size of the host.
+if word_bits is None:
+    word_bits = 64 if platform.architecture()[0] == "64bit" else 32
+
+# Need a platform name to use as a key in variant files.
+if args.platform:
+    variant_platform = args.platform.split("-")[0]
+elif platform.system() == "Windows":
+    variant_platform = "win64" if word_bits == 64 else "win32"
+elif platform.system() == "Linux":
+    variant_platform = "linux64" if word_bits == 64 else "linux"
+elif platform.system() == "Darwin":
+    variant_platform = "macosx64"
+else:
+    variant_platform = "other"
+
+env["LD_LIBRARY_PATH"] = ":".join(
+    d
+    for d in [
+        # for libnspr etc.
+        os.path.join(OBJDIR, "dist", "bin"),
+        # existing search path, if any
+        env.get("LD_LIBRARY_PATH"),
+    ]
+    if d is not None
+)
+
+os.environ["SOURCE"] = DIR.source
+if platform.system() == "Windows":
+    MAKE = env.get("MAKE", "mozmake")
+
+# Configure flags, based on word length and cross-compilation
+if word_bits == 32:
+    if platform.system() == "Windows":
+        CONFIGURE_ARGS += " --target=i686-pc-windows-msvc"
+    elif platform.system() == "Linux":
+        if not platform.machine().startswith("arm"):
+            CONFIGURE_ARGS += " --target=i686-pc-linux"
+
+    # Add SSE2 support for x86/x64 architectures.
+    if not platform.machine().startswith("arm"):
+        if platform.system() == "Windows":
+            sse_flags = "-arch:SSE2"
+        else:
+            sse_flags = "-msse -msse2 -mfpmath=sse"
+        env["CCFLAGS"] = "{0} {1}".format(env.get("CCFLAGS", ""), sse_flags)
+        env["CXXFLAGS"] = "{0} {1}".format(env.get("CXXFLAGS", ""), sse_flags)
+else:
+    if platform.system() == "Windows":
+        CONFIGURE_ARGS += " --target=x86_64-pc-windows-msvc"
+
+if platform.system() == "Linux" and AUTOMATION:
+    CONFIGURE_ARGS = "--enable-stdcxx-compat " + CONFIGURE_ARGS
+
+# Timeouts.
+ACTIVE_PROCESSES = set()
+
+
+def killall():
+    for proc in ACTIVE_PROCESSES:
+        proc.kill()
+    ACTIVE_PROCESSES.clear()
+
+
+timer = Timer(args.timeout, killall)
+timer.daemon = True
+timer.start()
+
+ensure_dir_exists(OBJDIR, clobber=not args.dep and not args.nobuild)
+ensure_dir_exists(OUTDIR, clobber=not args.keep)
+
+# Any jobs that wish to produce additional output can save them into the upload
+# directory if there is such a thing, falling back to OBJDIR.
+env.setdefault("MOZ_UPLOAD_DIR", OBJDIR)
+ensure_dir_exists(env["MOZ_UPLOAD_DIR"], clobber=False, creation_marker_filename=None)
+info("MOZ_UPLOAD_DIR = {}".format(env["MOZ_UPLOAD_DIR"]))
+
+
+def run_command(command, check=False, **kwargs):
+    kwargs.setdefault("cwd", OBJDIR)
+    info("in directory {}, running {}".format(kwargs["cwd"], command))
+    if platform.system() == "Windows":
+        # Windows will use cmd for the shell, which causes all sorts of
+        # problems. Use sh instead, quoting appropriately. (Use sh in all
+        # cases, not just when shell=True, because we want to be able to use
+        # paths that sh understands and cmd does not.)
+        if not isinstance(command, list):
+            if kwargs.get("shell"):
+                command = shlex.split(command)
+            else:
+                command = [command]
+
+        command = " ".join(quote(c) for c in command)
+        command = ["sh", "-c", command]
+        kwargs["shell"] = False
+    proc = Popen(command, **kwargs)
+    ACTIVE_PROCESSES.add(proc)
+    stdout, stderr = None, None
+    try:
+        stdout, stderr = proc.communicate()
+    finally:
+        ACTIVE_PROCESSES.discard(proc)
+    status = proc.wait()
+    if check and status != 0:
+        raise subprocess.CalledProcessError(status, command, output=stderr)
+    return stdout, stderr, status
+
+
+# Replacement strings in environment variables.
+REPLACEMENTS = {
+    "DIR": DIR.scripts,
+    "MOZ_FETCHES_DIR": DIR.fetches,
+    "MOZ_UPLOAD_DIR": env["MOZ_UPLOAD_DIR"],
+    "OUTDIR": OUTDIR,
+}
+
+# Add in environment variable settings for this variant. Normally used to
+# modify the flags passed to the shell or to set the GC zeal mode.
+for k, v in variant.get("env", {}).items():
+    env[k] = v.format(**REPLACEMENTS)
+
+if AUTOMATION:
+    # Currently only supported on linux64.
+    if platform.system() == "Linux" and word_bits == 64:
+        use_minidump = variant.get("use_minidump", True)
+    else:
+        use_minidump = False
+else:
+    use_minidump = False
+
+
+def resolve_path(dirs, *components):
+    if None in components:
+        return None
+    for dir in dirs:
+        path = os.path.join(dir, *components)
+        if os.path.exists(path):
+            return path
+
+
+if use_minidump:
+    env.setdefault("MINIDUMP_SAVE_PATH", env["MOZ_UPLOAD_DIR"])
+
+    injector_basename = {
+        "Linux": "libbreakpadinjector.so",
+        "Darwin": "breakpadinjector.dylib",
+    }.get(platform.system())
+
+    injector_lib = resolve_path((DIR.fetches,), "injector", injector_basename)
+    stackwalk = resolve_path((DIR.fetches,), "minidump-stackwalk", "minidump-stackwalk")
+    if stackwalk is not None:
+        env.setdefault("MINIDUMP_STACKWALK", stackwalk)
+    dump_syms = resolve_path((DIR.fetches,), "dump_syms", "dump_syms")
+    if dump_syms is not None:
+        env.setdefault("DUMP_SYMS", dump_syms)
+
+    if injector_lib is None:
+        use_minidump = False
+
+    info("use_minidump is {}".format(use_minidump))
+    info("  MINIDUMP_SAVE_PATH={}".format(env["MINIDUMP_SAVE_PATH"]))
+    info("  injector lib is {}".format(injector_lib))
+    info("  MINIDUMP_STACKWALK={}".format(env.get("MINIDUMP_STACKWALK")))
+
+
+mozconfig = os.path.join(DIR.source, "mozconfig.autospider")
+CONFIGURE_ARGS += " --prefix={OBJDIR}/dist".format(OBJDIR=quote(OBJDIR))
+
+# Generate a mozconfig.
+with open(mozconfig, "wt") as fh:
+    if AUTOMATION and platform.system() == "Windows":
+        fh.write('. "$topsrcdir/build/%s/mozconfig.vs-latest"\n' % variant_platform)
+    fh.write("ac_add_options --enable-project=js\n")
+    fh.write("ac_add_options " + CONFIGURE_ARGS + "\n")
+    fh.write("mk_add_options MOZ_OBJDIR=" + quote(OBJDIR) + "\n")
+
+env["MOZCONFIG"] = mozconfig
+
+mach = os.path.join(DIR.source, "mach")
+
+if not args.nobuild:
+    # Do the build
+    run_command([sys.executable, mach, "build"], check=True)
+
+    if use_minidump:
+        # Convert symbols to breakpad format.
+        cmd_env = env.copy()
+        cmd_env["MOZ_SOURCE_REPO"] = "file://" + DIR.source
+        cmd_env["RUSTC_COMMIT"] = "0"
+        cmd_env["MOZ_CRASHREPORTER"] = "1"
+        cmd_env["MOZ_AUTOMATION_BUILD_SYMBOLS"] = "1"
+        run_command(
+            [
+                sys.executable,
+                mach,
+                "build",
+                "recurse_syms",
+            ],
+            check=True,
+            env=cmd_env,
+        )
+
+COMMAND_PREFIX = []
+# On Linux, disable ASLR to make shell builds a bit more reproducible.
+# Bug 1795718 - Disable in automation for now as call to setarch requires extra
+# docker privileges.
+if not AUTOMATION and subprocess.call("type setarch >/dev/null 2>&1", shell=True) == 0:
+    COMMAND_PREFIX.extend(["setarch", platform.machine(), "-R"])
+
+
+def run_test_command(command, **kwargs):
+    _, _, status = run_command(COMMAND_PREFIX + command, check=False, **kwargs)
+    return status
+
+
+def run_jsapitests(args):
+    jsapi_test_binary = os.path.join(OBJDIR, "dist", "bin", "jsapi-tests")
+    test_env = env.copy()
+    test_env["TOPSRCDIR"] = DIR.source
+    if use_minidump and platform.system() == "Linux":
+        test_env["LD_PRELOAD"] = injector_lib
+    st = run_test_command([jsapi_test_binary] + args, env=test_env)
+    if st < 0:
+        print(
+            "PROCESS-CRASH | {} | application crashed".format(
+                " ".join(["jsapi-tests"] + args)
+            )
+        )
+        print("Return code: {}".format(st))
+    return st
+
+
+default_test_suites = frozenset(["jstests", "jittest", "jsapitests", "checks"])
+nondefault_test_suites = frozenset(["gdb"])
+all_test_suites = default_test_suites | nondefault_test_suites
+
+test_suites = set(default_test_suites)
+
+
+def normalize_tests(tests):
+    if "all" in tests:
+        return default_test_suites
+    return tests
+
+
+# Override environment variant settings conditionally.
+for k, v in variant.get("conditional-env", {}).get(variant_platform, {}).items():
+    env[k] = v.format(**REPLACEMENTS)
+
+# Skip any tests that are not run on this platform (or the 'all' platform).
+test_suites -= set(
+    normalize_tests(variant.get("skip-tests", {}).get(variant_platform, []))
+)
+test_suites -= set(normalize_tests(variant.get("skip-tests", {}).get("all", [])))
+
+# Add in additional tests for this platform (or the 'all' platform).
+test_suites |= set(
+    normalize_tests(variant.get("extra-tests", {}).get(variant_platform, []))
+)
+test_suites |= set(normalize_tests(variant.get("extra-tests", {}).get("all", [])))
+
+# Now adjust the variant's default test list with command-line arguments.
+test_suites |= set(normalize_tests(args.run_tests.split(",")))
+test_suites -= set(normalize_tests(args.skip_tests.split(",")))
+if "all" in args.skip_tests.split(","):
+    test_suites = []
+
+# Bug 1557130 - Atomics tests can create many additional threads which can
+# lead to resource exhaustion, resulting in intermittent failures. This was
+# only seen on beefy machines (> 32 cores), so limit the number of parallel
+# workers for now.
+#
+# Bug 1391877 - Windows test runs are getting mysterious timeouts when run
+# through taskcluster, but only when running many jit-test jobs in parallel.
+# Even at 16, some tests can overflow the paging file.
+worker_max = multiprocessing.cpu_count()
+jstest_workers = worker_max
+jittest_workers = worker_max
+if platform.system() == "Windows":
+    jstest_workers = min(worker_max, 16)
+    env["JSTESTS_EXTRA_ARGS"] = "-j{} ".format(jstest_workers) + env.get(
+        "JSTESTS_EXTRA_ARGS", ""
+    )
+    jittest_workers = min(worker_max, 8)
+    env["JITTEST_EXTRA_ARGS"] = "-j{} ".format(jittest_workers) + env.get(
+        "JITTEST_EXTRA_ARGS", ""
+    )
+print(
+    f"using {jstest_workers}/{worker_max} workers for jstests, "
+    f"{jittest_workers}/{worker_max} for jittest"
+)
+
+if use_minidump:
+    # Set up later js invocations to run with the breakpad injector loaded.
+    # Originally, I intended for this to be used with LD_PRELOAD, but when
+    # cross-compiling from 64- to 32-bit, that will fail and produce stderr
+    # output when running any 64-bit commands, which breaks eg mozconfig
+    # processing. So use the --dll command line mechanism universally.
+    for v in ("JSTESTS_EXTRA_ARGS", "JITTEST_EXTRA_ARGS"):
+        env[v] = "--args='--dll %s' %s" % (injector_lib, env.get(v, ""))
+
+# Always run all enabled tests, even if earlier ones failed. But return the
+# first failed status.
+results = [("(make-nonempty)", 0)]
+
+if "checks" in test_suites:
+    results.append(("make check", run_test_command([MAKE, "check"])))
+
+if "jittest" in test_suites:
+    results.append(("make check-jit-test", run_test_command([MAKE, "check-jit-test"])))
+if "jsapitests" in test_suites:
+    st = run_jsapitests([])
+    if st == 0:
+        st = run_jsapitests(["--frontend-only"])
+    results.append(("jsapi-tests", st))
+if "jstests" in test_suites:
+    results.append(("jstests", run_test_command([MAKE, "check-jstests"])))
+if "gdb" in test_suites:
+    test_script = os.path.join(DIR.js_src, "gdb", "run-tests.py")
+    auto_args = ["-s", "-o", "--no-progress"] if AUTOMATION else []
+    extra_args = env.get("GDBTEST_EXTRA_ARGS", "").split(" ")
+    results.append(
+        (
+            "gdb",
+            run_test_command([PYTHON, test_script, *auto_args, *extra_args, OBJDIR]),
+        )
+    )
+
+# FIXME bug 1291449: This would be unnecessary if we could run msan with -mllvm
+# -msan-keep-going, but in clang 3.8 it causes a hang during compilation.
+if variant.get("ignore-test-failures"):
+    logging.warning("Ignoring test results %s" % (results,))
+    results = [("ignored", 0)]
+
+if args.variant == "msan":
+    files = filter(lambda f: f.startswith("sanitize_log."), os.listdir(OUTDIR))
+    fullfiles = [os.path.join(OUTDIR, f) for f in files]
+
+    # Summarize results
+    sites = Counter()
+    errors = Counter()
+    for filename in fullfiles:
+        with open(os.path.join(OUTDIR, filename), "rb") as fh:
+            for line in fh:
+                m = re.match(
+                    r"^SUMMARY: \w+Sanitizer: (?:data race|use-of-uninitialized-value) (.*)",  # NOQA: E501
+                    line.strip(),
+                )
+                if m:
+                    # Some reports include file:line:column, some just
+                    # file:line. Just in case it's nondeterministic, we will
+                    # canonicalize to just the line number.
+                    site = re.sub(r"^(\S+?:\d+)(:\d+)* ", r"\1 ", m.group(1))
+                    sites[site] += 1
+
+    # Write a summary file and display it to stdout.
+    summary_filename = os.path.join(
+        env["MOZ_UPLOAD_DIR"], "%s_summary.txt" % args.variant
+    )
+    with open(summary_filename, "wb") as outfh:
+        for location, count in sites.most_common():
+            print >> outfh, "%d %s" % (count, location)
+    print(open(summary_filename, "rb").read())
+
+    if "max-errors" in variant:
+        max_allowed = variant["max-errors"]
+        print("Found %d errors out of %d allowed" % (len(sites), max_allowed))
+        if len(sites) > max_allowed:
+            results.append(("too many msan errors", 1))
+
+    # Gather individual results into a tarball. Note that these are
+    # distinguished only by pid of the JS process running within each test, so
+    # given the 16-bit limitation of pids, it's totally possible that some of
+    # these files will be lost due to being overwritten.
+    command = [
+        "tar",
+        "-C",
+        OUTDIR,
+        "-zcf",
+        os.path.join(env["MOZ_UPLOAD_DIR"], "%s.tar.gz" % args.variant),
+    ]
+    command += files
+    subprocess.call(command)
+
+# Upload dist/bin/js as js.wasm for the WASI build.
+if args.variant == "wasi":
+    command = [
+        "cp",
+        os.path.join(OBJDIR, "dist/bin/js"),
+        os.path.join(env["MOZ_UPLOAD_DIR"], "js.wasm"),
+    ]
+    subprocess.call(command)
+
+# Generate stacks from minidumps.
+if use_minidump:
+    run_command(
+        [
+            mach,
+            "python",
+            "virtualenv=build",
+            os.path.join(DIR.source, "testing/mozbase/mozcrash/mozcrash/mozcrash.py"),
+            os.getenv("TMPDIR", "/tmp"),
+            os.path.join(OBJDIR, "dist/crashreporter-symbols"),
+        ]
+    )
+
+for name, st in results:
+    print("exit status %d for '%s'" % (st, name))
+
+# Pick the "worst" exit status. SIGSEGV might give a status of -11, so use the
+# maximum absolute value instead of just the maximum.
+exit_status = max((st for _, st in results), key=abs)
+
+# The exit status on Windows can be something like 2147483651 (0x80000003),
+# which will be converted to status zero in the caller. Mask off the high bits,
+# but if the result is zero then fall back to returning 1.
+if exit_status & 0xFF:
+    sys.exit(exit_status & 0xFF)
+else:
+    sys.exit(1 if exit_status else 0)