Add C++ toolchain configuration for OpenBSD.
In my limited testing, these changes appear to work. When I built Bazel on OpenBSD incorporating these changes, the resulting `bazel` binary could build C++ libraries and binaries. Likewise on FreeBSD.
This change, split out of the larger PR https://github.com/bazelbuild/bazel/pull/10274, is part of the OpenBSD port in https://github.com/bazelbuild/bazel/issues/10250.
Closes #10436.
PiperOrigin-RevId: 289091510
diff --git a/tools/cpp/BUILD.static.bsd b/tools/cpp/BUILD.static.bsd
new file mode 100644
index 0000000..2e02dbf
--- /dev/null
+++ b/tools/cpp/BUILD.static.bsd
@@ -0,0 +1,148 @@
+# Copyright 2018 The Bazel Authors. All rights reserved.
+#
+# 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
+#
+# http://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.
+
+# This becomes the BUILD file for @local_config_cc// under FreeBSD and OpenBSD.
+
+package(default_visibility = ["//visibility:public"])
+
+load(":cc_toolchain_config.bzl", "cc_toolchain_config")
+load("@rules_cc//cc:defs.bzl", "cc_toolchain_suite", "cc_toolchain", "cc_library")
+
+cc_library(
+ name = "malloc",
+)
+
+filegroup(
+ name = "empty",
+ srcs = [],
+)
+
+# Hardcoded toolchain, legacy behaviour.
+cc_toolchain_suite(
+ name = "toolchain",
+ toolchains = {
+ "armeabi-v7a|compiler": ":cc-compiler-armeabi-v7a",
+ "freebsd|compiler": ":cc-compiler-freebsd",
+ "openbsd|compiler": ":cc-compiler-openbsd",
+ "armeabi-v7a": ":cc-compiler-armeabi-v7a",
+ "freebsd": ":cc-compiler-freebsd",
+ "openbsd": ":cc-compiler-openbsd",
+ },
+)
+
+cc_toolchain(
+ name = "cc-compiler-freebsd",
+ all_files = ":empty",
+ ar_files = ":empty",
+ as_files = ":empty",
+ compiler_files = ":empty",
+ dwp_files = ":empty",
+ linker_files = ":empty",
+ objcopy_files = ":empty",
+ strip_files = ":empty",
+ supports_param_files = 0,
+ toolchain_config = ":local_freebsd",
+ toolchain_identifier = "local_freebsd",
+)
+
+cc_toolchain_config(
+ name = "local_freebsd",
+ cpu = "freebsd",
+)
+
+toolchain(
+ name = "cc-toolchain-freebsd",
+ exec_compatible_with = [
+ "@platforms//cpu:x86_64",
+ "@platforms//os:freebsd",
+ ],
+ target_compatible_with = [
+ "@platforms//cpu:x86_64",
+ "@platforms//os:freebsd",
+ ],
+ toolchain = ":cc-compiler-freebsd",
+ toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
+)
+
+cc_toolchain(
+ name = "cc-compiler-openbsd",
+ all_files = ":empty",
+ ar_files = ":empty",
+ as_files = ":empty",
+ compiler_files = ":empty",
+ dwp_files = ":empty",
+ linker_files = ":empty",
+ objcopy_files = ":empty",
+ strip_files = ":empty",
+ supports_param_files = 0,
+ toolchain_config = ":local_openbsd",
+ toolchain_identifier = "local_openbsd",
+)
+
+cc_toolchain_config(
+ name = "local_openbsd",
+ cpu = "openbsd",
+)
+
+toolchain(
+ name = "cc-toolchain-openbsd",
+ exec_compatible_with = [
+ "@platforms//cpu:x86_64",
+ "@platforms//os:openbsd",
+ ],
+ target_compatible_with = [
+ "@platforms//cpu:x86_64",
+ "@platforms//os:openbsd",
+ ],
+ toolchain = ":cc-compiler-openbsd",
+ toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
+)
+
+cc_toolchain(
+ name = "cc-compiler-armeabi-v7a",
+ all_files = ":empty",
+ ar_files = ":empty",
+ as_files = ":empty",
+ compiler_files = ":empty",
+ dwp_files = ":empty",
+ linker_files = ":empty",
+ objcopy_files = ":empty",
+ strip_files = ":empty",
+ supports_param_files = 0,
+ toolchain_config = ":stub_armeabi-v7a",
+ toolchain_identifier = "stub_armeabi-v7a",
+)
+
+cc_toolchain_config(
+ name = "stub_armeabi-v7a",
+ cpu = "armeabi-v7a",
+)
+
+toolchain(
+ name = "cc-toolchain-armeabi-v7a",
+ exec_compatible_with = [
+ "@platforms//cpu:arm",
+ ],
+ target_compatible_with = [
+ "@platforms//cpu:arm",
+ "@platforms//os:android",
+ ],
+ toolchain = ":cc-compiler-armeabi-v7a",
+ toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
+)
+
+filegroup(
+ name = "link_dynamic_library",
+ srcs = ["link_dynamic_library.sh"],
+)
