49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
# Copyright 2023 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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"""Utilities for declaring Rust toolchains that are compatible with @bazel_embedded"""
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load("@rules_rust//rust:toolchain.bzl", "rust_toolchain")
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def pw_rust_toolchain(name, exec_cpu, exec_os, target_cpu, rust_target_triple, exec_triple):
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proxy_toolchain = "@rust_{}_{}__{}__stable_tools".format(exec_os, exec_cpu, rust_target_triple)
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rust_toolchain(
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name = "{}_impl".format(name),
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binary_ext = "",
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dylib_ext = ".so",
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exec_triple = exec_triple,
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os = "none",
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rust_doc = "{}//:rustdoc".format(proxy_toolchain),
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rust_std = "{}//:rust_std-{}".format(proxy_toolchain, rust_target_triple),
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rustc = "{}//:rustc".format(proxy_toolchain),
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rustc_lib = "{}//:rustc_lib".format(proxy_toolchain),
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staticlib_ext = ".a",
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stdlib_linkflags = [],
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target_triple = rust_target_triple,
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)
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native.toolchain(
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name = name,
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exec_compatible_with = [
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"@platforms//cpu:{}".format(exec_cpu),
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"@platforms//os:{}".format(exec_os),
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],
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target_compatible_with = [
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"@platforms//cpu:{}".format(target_cpu),
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"@bazel_embedded//constraints/fpu:none",
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],
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toolchain = ":{}_impl".format(name),
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toolchain_type = "@rules_rust//rust:toolchain",
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)
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