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echo.bzl
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echo.bzl
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# Copyright 2023 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.
"""Build rules and transitions for firmware."""
def _stm32_transition_impl(settings, attr):
# buildifier: disable=unused-variable
_ignore = attr
return {
"//command_line_option:platforms": "//targets:stm32",
}
_stm32_transition = transition(
implementation = _stm32_transition_impl,
inputs = [],
outputs = [
"//command_line_option:platforms",
],
)
def _binary_impl(ctx):
out = ctx.actions.declare_file(ctx.label.name)
ctx.actions.symlink(output = out, target_file = ctx.executable.binary)
return [DefaultInfo(files = depset([out]), executable = out)]
# TODO(tpudlik): Replace this with platform_data when it is available.
stm32_cc_binary = rule(
_binary_impl,
attrs = {
"binary": attr.label(
doc = "cc_binary to build for stm32",
cfg = _stm32_transition,
executable = True,
mandatory = True,
),
"_allowlist_function_transition": attr.label(default = "@bazel_tools//tools/allowlists/function_transition_allowlist"),
},
)