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# Copyright 2019 The Pigweed Authors
#
# 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
#
# https://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.
"""Pigweed build environment for bazel."""
load(
"//pw_build/bazel_internal:pigweed_internal.bzl",
_add_defaults = "add_defaults",
)
# Used by `pw_cc_test`.
FUZZTEST_OPTS = [
"-Wno-sign-compare",
"-Wno-unused-parameter",
]
def pw_cc_binary(**kwargs):
"""Wrapper for cc_binary providing some defaults.
Specifically, this wrapper,
* Adds default copts.
* Adds a dep on the pw_assert backend.
* Sets "linkstatic" to True.
* Disables header modules (via the feature -use_header_modules).
Args:
**kwargs: Passed to cc_binary.
"""
kwargs["deps"] = kwargs.get("deps", [])
# TODO(b/234877642): Remove this implicit dependency once we have a better
# way to handle the facades without introducing a circular dependency into
# the build.
kwargs["deps"] = kwargs["deps"] + ["@pigweed_config//:pw_assert_backend"]
_add_defaults(kwargs)
native.cc_binary(**kwargs)
def pw_cc_library(**kwargs):
"""Wrapper for cc_library providing some defaults.
Specifically, this wrapper,
* Adds default copts.
* Sets "linkstatic" to True.
* Disables header modules (via the feature -use_header_modules).
Args:
**kwargs: Passed to cc_library.
"""
_add_defaults(kwargs)
native.cc_library(**kwargs)
def pw_cc_test(**kwargs):
"""Wrapper for cc_test providing some defaults.
Specifically, this wrapper,
* Adds default copts.
* Adds a dep on the pw_assert backend.
* Adds a dep on //pw_unit_test:simple_printing_main
* Sets "linkstatic" to True.
* Disables header modules (via the feature -use_header_modules).
Args:
**kwargs: Passed to cc_test.
"""
kwargs["deps"] = kwargs.get("deps", []) + \
["@pigweed_config//:pw_unit_test_main"]
# TODO(b/234877642): Remove this implicit dependency once we have a better
# way to handle the facades without introducing a circular dependency into
# the build.
kwargs["deps"] = kwargs["deps"] + ["@pigweed_config//:pw_assert_backend"]
_add_defaults(kwargs)
# Some tests may include FuzzTest, which includes headers that trigger
# warnings. This check must be done here and not in `add_defaults`, since
# the `use_fuzztest` config setting can refer by label to a library which
# itself calls `add_defaults`.
extra_copts = select({
"@pigweed//pw_fuzzer:use_fuzztest": FUZZTEST_OPTS,
"//conditions:default": [],
})
kwargs["copts"] = kwargs.get("copts", []) + extra_copts
native.cc_test(**kwargs)
def pw_cc_perf_test(**kwargs):
"""A Pigweed performance test.
This macro produces a cc_binary and,
* Adds default copts.
* Adds a dep on the pw_assert backend.
* Adds a dep on //pw_perf_test:logging_main
* Sets "linkstatic" to True.
* Disables header modules (via the feature -use_header_modules).
Args:
**kwargs: Passed to cc_binary.
"""
kwargs["deps"] = kwargs.get("deps", []) + \
["@pigweed//pw_perf_test:logging_main"]
kwargs["deps"] = kwargs["deps"] + ["@pigweed_config//:pw_assert_backend"]
_add_defaults(kwargs)
native.cc_binary(**kwargs)
def pw_cc_facade(**kwargs):
# Bazel facades should be source only cc_library's this is to simplify
# lazy header evaluation. Bazel headers are not 'precompiled' so the build
# system does not check to see if the build has the right dependant headers
# in the sandbox. If a source file is declared here and includes a header
# file the toolchain will compile as normal and complain about the missing
# backend headers.
if "srcs" in kwargs.keys():
fail("'srcs' attribute does not exist in pw_cc_facade, please use \
main implementing target.")
_add_defaults(kwargs)
native.cc_library(**kwargs)