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helpers.bzl
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helpers.bzl
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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This build configuration is licensed under the BSD-style license found in the
# LICENSE file in the root directory of this source tree.
load("@bazel_skylib//lib:paths.bzl", "paths")
load("@fbcode_macros//build_defs:cpp_binary.bzl", "cpp_binary")
load("@fbcode_macros//build_defs:export_files.bzl", "export_file")
load("@fbcode_macros//build_defs:native_rules.bzl", "buck_sh_test")
load("@fbcode_macros//build_defs:python_binary.bzl", "python_binary")
load("@fbcode_macros//build_defs:rust_binary.bzl", "rust_binary")
load("@fbsource//tools/build_defs:testpilot_defs.bzl", "special_tags")
def build_test(name, bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos):
# Used only by shell tests.
common_env = {
"HERMIT_BIN": "$(location //hermetic_infra/hermit/hermit-cli:hermit)",
"PYTHON_SIMPLEST_SERVER": "$(location //hermetic_infra/hermit/tests:simplest_server_py)",
}
if raw:
# # Also run tests without any sort of syscall interception. "raw" mode:
buck_sh_test(
name = "raw_run__" + name,
args = [
"--no-sequentialize-threads",
"--no-deterministic-io",
],
env = common_env,
test = bin_target,
)
if run:
# Run tests in hermit run mode, default settings:
# TODO: add determinism-assertion by adding a hermit flag for running twice.
buck_sh_test(
name = "hermit_run_default__" + name,
args = [
"run",
"--no-sequentialize-threads",
"--no-deterministic-io",
"--env=HERMIT_MODE=default",
"$(location " + bin_target + ")",
],
env = common_env,
test = "//hermetic_infra/hermit/hermit-cli:hermit",
labels = [special_tags.enable_artifact_reporting],
)
# if strict:
# Run tests in hermit run mode, strict settings:
if not (no_deterministic_io or no_sequentialize_threads):
# Warning: hacky tuning! The preemption-timeout here is
# arbitrary, and is basically selected to be the largest
# number that we can tolerate while still observing some
# context switches in the mem_race test. It needs to be
# large because the performance of deterministic
# preemptions is currently quite slow, and frequent
# preemptions will slow down *all* tests.
hermit_verify(
"hermit_run_strict__" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["run", "--isolate-workdir"],
hermit_args = ["--base-env=empty", "--env=HERMIT_MODE=strict", "--preemption-timeout=80000000"],
env = {},
)
if tracereplay:
hermit_verify(
"hermit_run_tracereplay__" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["--verbose", "trace-replay", "--strip-times", "--isolate-workdir"],
hermit_args = ["--base-env=empty", "--env=HERMIT_MODE=tracereplay"],
env = common_env,
)
if tracereplay_chaos:
hermit_verify(
"hermit_run_tracereplay_chaos__" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["--verbose", "trace-replay", "--strip-times", "--chaos", "--isolate-workdir"],
hermit_args = ["--base-env=empty", "--env=HERMIT_MODE=tracereplay_chaos"],
env = common_env,
)
if chaos:
# Run tests in hermit run mode, strict settings, chaotic scheduling:
# Warning: hacky tuning! The preemption-timeout here is
# arbitrary, and is basically selected to be the smallest
# number that we can tolerate for chaos tests. Smaller numbers
# create more priority change points, which are deterministic
# preemptions and thus quite slow. Frequent change points thus
# slow down *all* tests. The slowest/deadlocking tests have specific
# disables for chaos mode.
hermit_verify(
"hermit_run_chaos__" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["run", "--isolate-workdir"],
hermit_args = ["--chaos", "--base-env=empty", "--env=HERMIT_MODE=chaos", "--preemption-timeout=1000000"],
env = {},
)
if chaosreplay:
# Also run with replay of recorded preemptions.
hermit_verify(
"hermit_run_chaosreplay__" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["chaos-replay", "--isolate-workdir"],
hermit_args = ["--chaos", "--base-env=empty", "--env=HERMIT_MODE=chaosreplay"],
env = common_env,
)
if record_and_replay:
buck_sh_test(
name = "hermit_record_" + name,
args = [
"record",
"start",
"--verify",
"--",
"$(location " + bin_target + ")",
],
env = dict(
common_env,
HERMIT_MODE = "record",
),
test = "//hermetic_infra/hermit/hermit-cli:hermit",
labels = [special_tags.enable_artifact_reporting],
)
def resolve_target_name(path, kind):
basename = paths.replace_extension(paths.basename(path), "")
return "{}bin_{}".format(kind, basename)
def hermit_verify_c_bin(path, name_suffix, guest_args = [], args = [], hermit_args = [], env = {}):
target = resolve_target_name(path, "c")
if not native.rule_exists(target):
cpp_binary(
name = target,
srcs = [path],
headers = ["c/util/assert.h"],
deps = [],
)
hermit_verify(name = "{}_{}".format(target, name_suffix), guest = "$(location :" + target + ")", guest_args = guest_args, env = env, hermit_args = hermit_args, args = args)
def hermit_verify(name, guest, guest_args = [], args = [], hermit_args = [], env = {}):
buck_sh_test(
name = name,
args =
["--hermit-bin=$(location //hermetic_infra/hermit/hermit-cli:hermit)"] +
args +
["--hermit-arg=" + arg for arg in hermit_args] +
["--"] +
[guest] +
guest_args,
env = env,
labels = [special_tags.enable_artifact_reporting],
test = "//hermetic_infra/hermit/hermit-verify:hermit-verify",
)
def hermit_shell_test(path, raw, run, no_sequentialize_threads, no_deterministic_io, chaos, record_and_replay, chaosreplay, tracereplay = False, tracereplay_chaos = False):
basename = paths.replace_extension(paths.basename(path), "")
export_file(name = "shellfile_" + basename, src = path)
build_test("sh_" + basename, ":shellfile_" + basename, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos)
def hermit_python_test(path, module_base, raw, run, no_sequentialize_threads, no_deterministic_io, chaos, record_and_replay, chaosreplay = False, tracereplay = False, tracereplay_chaos = False):
basename = paths.replace_extension(paths.basename(path), "")
bin_name = "pythonbin_" + basename
bin_target = ":" + bin_name
python_binary(
name = bin_name,
srcs = [path],
main_module = module_base + "." + basename,
deps = [],
# NOTE: We use par_style = "live" here because it appears as if `/tmp`
# is owned by UID 65534 due to our usage of a user namespace. Other par
# styles don't like that and will bail. Since this target is only used
# for testing purposes, we don't need a self-contained par file.
par_style = "live",
)
build_test("py_" + basename, bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos)
def hermit_c_test(path, raw, run, no_sequentialize_threads, no_deterministic_io, chaos, record_and_replay, chaosreplay, tracereplay = False, tracereplay_chaos = False):
basename = paths.replace_extension(paths.basename(path), "")
bin_name = "cbin_" + basename
bin_target = ":" + bin_name
cpp_binary(
name = bin_name,
srcs = [path],
headers = ["c/util/assert.h"],
deps = [],
)
build_test("c_" + basename, bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos)
# Similar to C/Rust tests but with a prebuilt custom binary.
def hermit_bin_test(bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, chaos, record_and_replay, chaosreplay, tracereplay = False, tracereplay_chaos = False):
# Accept a fairly limited syntax of targets only:
basename = bin_target.split(":")[-1]
build_test("custombin_" + basename, bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos)
def hermit_rust_test(path, raw, run, no_sequentialize_threads, no_deterministic_io, chaos, record_and_replay, chaosreplay, tracereplay = False, tracereplay_chaos = False):
basename = paths.replace_extension(paths.basename(path), "")
bin_name = "rustbin_" + basename
bin_target = ":" + bin_name
rust_binary(
name = bin_name,
srcs = [path, paths.dirname(path) + "/test_utils/mod.rs"],
crate_root = path,
deps = [
"fbsource//third-party/rust:libc",
"fbsource//third-party/rust:nix",
"fbsource//third-party/rust:tempfile",
],
)
build_test("rs_" + basename, bin_target, raw, run, no_sequentialize_threads, no_deterministic_io, record_and_replay, chaos, chaosreplay, tracereplay, tracereplay_chaos)
def hermit_chaos_stress_test(name, bin_target, preempt_interval, max_iterations):
hermit_verify(
"hermit_chaos_fail_" + name,
guest = "$(location " + bin_target + ")",
guest_args = [],
args = ["chaos-stress", "--max-iterations-count=" + str(max_iterations)],
hermit_args = ["--chaos", "--base-env=minimal", "--preemption-timeout=" + str(preempt_interval)],
env = {},
)