Add a static C++ toolchain configuration for freebsd
The toolchain configuration rule freebsd currently is relying on will be removed as part of #8546
Tested locally that the resulting cc_toolchain_config rules are the same with @rules_cc//tools/migration/cc_toolchain_config_comparator.bzl
RELNOTES: None.
PiperOrigin-RevId: 262555744
diff --git a/tools/cpp/BUILD.static.freebsd b/tools/cpp/BUILD.static.freebsd
index a3a69d3..ded0f537 100644
--- a/tools/cpp/BUILD.static.freebsd
+++ b/tools/cpp/BUILD.static.freebsd
@@ -16,7 +16,7 @@
package(default_visibility = ["//visibility:public"])
-load("@bazel_tools//tools/cpp:cc_toolchain_config.bzl", "cc_toolchain_config")
+load(":cc_toolchain_config.bzl", "cc_toolchain_config")
load("@rules_cc//cc:defs.bzl", "cc_toolchain_suite", "cc_toolchain", "cc_library")
cc_library(
@@ -57,7 +57,6 @@
cc_toolchain_config(
name = "local_freebsd",
cpu = "freebsd",
- compiler = "compiler",
)
toolchain(
@@ -92,7 +91,6 @@
cc_toolchain_config(
name = "stub_armeabi-v7a",
cpu = "armeabi-v7a",
- compiler = "compiler",
)
toolchain(
diff --git a/tools/cpp/cc_configure.bzl b/tools/cpp/cc_configure.bzl
index 36b3365..de834d6 100644
--- a/tools/cpp/cc_configure.bzl
+++ b/tools/cpp/cc_configure.bzl
@@ -92,7 +92,6 @@
overriden_tools: dict of tool paths to use instead of autoconfigured tools
"""
paths = resolve_labels(repository_ctx, [
- "@bazel_tools//tools/cpp:BUILD.static.freebsd",
"@bazel_tools//tools/cpp:cc_toolchain_config.bzl",
])
@@ -102,11 +101,16 @@
repository_ctx.symlink(paths["@bazel_tools//tools/cpp:cc_toolchain_config.bzl"], "cc_toolchain_config.bzl")
repository_ctx.symlink(Label("@bazel_tools//tools/cpp:BUILD.empty"), "BUILD")
elif cpu_value == "freebsd":
- # This is defaulting to the static crosstool, we should eventually
+ paths = resolve_labels(repository_ctx, [
+ "@bazel_tools//tools/cpp:BUILD.static.freebsd",
+ "@bazel_tools//tools/cpp:freebsd_cc_toolchain_config.bzl",
+ ])
+
+ # This is defaulting to a static crosstool, we should eventually
# autoconfigure this platform too. Theorically, FreeBSD should be
# straightforward to add but we cannot run it in a docker container so
# skipping until we have proper tests for FreeBSD.
- repository_ctx.symlink(paths["@bazel_tools//tools/cpp:cc_toolchain_config.bzl"], "cc_toolchain_config.bzl")
+ repository_ctx.symlink(paths["@bazel_tools//tools/cpp:freebsd_cc_toolchain_config.bzl"], "cc_toolchain_config.bzl")
repository_ctx.symlink(paths["@bazel_tools//tools/cpp:BUILD.static.freebsd"], "BUILD")
elif cpu_value == "x64_windows":
# TODO(ibiryukov): overriden_tools are only supported in configure_unix_toolchain.
diff --git a/tools/cpp/freebsd_cc_toolchain_config.bzl b/tools/cpp/freebsd_cc_toolchain_config.bzl
new file mode 100644
index 0000000..d8818d4
--- /dev/null
+++ b/tools/cpp/freebsd_cc_toolchain_config.bzl
@@ -0,0 +1,307 @@
+# Copyright 2019 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.
+
+"""A Starlark cc_toolchain configuration rule for freebsd."""
+
+load(
+ "@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl",
+ "action_config",
+ "feature",
+ "flag_group",
+ "flag_set",
+ "tool",
+ "tool_path",
+ "with_feature_set",
+)
+load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "ACTION_NAMES")
+
+all_compile_actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.clif_match,
+ ACTION_NAMES.lto_backend,
+]
+
+all_cpp_compile_actions = [
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.clif_match,
+]
+
+all_link_actions = [
+ ACTION_NAMES.cpp_link_executable,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+]
+
+def _impl(ctx):
+ cpu = ctx.attr.cpu
+ compiler = "compiler"
+ toolchain_identifier = "local_freebsd" if cpu == "freebsd" else "stub_armeabi-v7a"
+ host_system_name = "local" if cpu == "freebsd" else "armeabi-v7a"
+ target_system_name = "local" if cpu == "freebsd" else "armeabi-v7a"
+ target_libc = "local" if cpu == "freebsd" else "armeabi-v7a"
+ abi_version = "local" if cpu == "freebsd" else "armeabi-v7a"
+ abi_libc_version = "local" if cpu == "freebsd" else "armeabi-v7a"
+
+ objcopy_embed_data_action = action_config(
+ action_name = "objcopy_embed_data",
+ enabled = True,
+ tools = [tool(path = "/usr/bin/objcopy")],
+ )
+
+ action_configs = [objcopy_embed_data_action] if cpu == "freebsd" else []
+
+ default_link_flags_feature = feature(
+ name = "default_link_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-lstdc++",
+ "-Wl,-z,relro,-z,now",
+ "-no-canonical-prefixes",
+ ],
+ ),
+ ],
+ ),
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [flag_group(flags = ["-Wl,--gc-sections"])],
+ with_features = [with_feature_set(features = ["opt"])],
+ ),
+ ],
+ )
+
+ unfiltered_compile_flags_feature = feature(
+ name = "unfiltered_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = all_compile_actions,
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-no-canonical-prefixes",
+ "-Wno-builtin-macro-redefined",
+ "-D__DATE__=\"redacted\"",
+ "-D__TIMESTAMP__=\"redacted\"",
+ "-D__TIME__=\"redacted\"",
+ ],
+ ),
+ ],
+ ),
+ ],
+ )
+
+ supports_pic_feature = feature(name = "supports_pic", enabled = True)
+
+ default_compile_flags_feature = feature(
+ name = "default_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = all_compile_actions,
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-U_FORTIFY_SOURCE",
+ "-D_FORTIFY_SOURCE=1",
+ "-fstack-protector",
+ "-Wall",
+ "-fno-omit-frame-pointer",
+ ],
+ ),
+ ],
+ ),
+ flag_set(
+ actions = all_compile_actions,
+ flag_groups = [flag_group(flags = ["-g"])],
+ with_features = [with_feature_set(features = ["dbg"])],
+ ),
+ flag_set(
+ actions = all_compile_actions,
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-g0",
+ "-O2",
+ "-DNDEBUG",
+ "-ffunction-sections",
+ "-fdata-sections",
+ ],
+ ),
+ ],
+ with_features = [with_feature_set(features = ["opt"])],
+ ),
+ flag_set(
+ actions = all_cpp_compile_actions + [ACTION_NAMES.lto_backend],
+ flag_groups = [flag_group(flags = ["-std=c++0x"])],
+ ),
+ ],
+ )
+
+ opt_feature = feature(name = "opt")
+
+ supports_dynamic_linker_feature = feature(name = "supports_dynamic_linker", enabled = True)
+
+ objcopy_embed_flags_feature = feature(
+ name = "objcopy_embed_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = ["objcopy_embed_data"],
+ flag_groups = [flag_group(flags = ["-I", "binary"])],
+ ),
+ ],
+ )
+
+ dbg_feature = feature(name = "dbg")
+
+ user_compile_flags_feature = feature(
+ name = "user_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = all_compile_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["%{user_compile_flags}"],
+ iterate_over = "user_compile_flags",
+ expand_if_available = "user_compile_flags",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ sysroot_feature = feature(
+ name = "sysroot",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.clif_match,
+ ACTION_NAMES.lto_backend,
+ ] + all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["--sysroot=%{sysroot}"],
+ expand_if_available = "sysroot",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ if cpu == "freebsd":
+ features = [
+ default_compile_flags_feature,
+ default_link_flags_feature,
+ supports_dynamic_linker_feature,
+ supports_pic_feature,
+ objcopy_embed_flags_feature,
+ opt_feature,
+ dbg_feature,
+ user_compile_flags_feature,
+ sysroot_feature,
+ unfiltered_compile_flags_feature,
+ ]
+ else:
+ features = [supports_dynamic_linker_feature, supports_pic_feature]
+
+ if (cpu == "freebsd"):
+ cxx_builtin_include_directories = ["/usr/lib/clang", "/usr/local/include", "/usr/include"]
+ else:
+ cxx_builtin_include_directories = []
+
+ if cpu == "freebsd":
+ tool_paths = [
+ tool_path(name = "ar", path = "/usr/bin/ar"),
+ tool_path(name = "compat-ld", path = "/usr/bin/ld"),
+ tool_path(name = "cpp", path = "/usr/bin/cpp"),
+ tool_path(name = "dwp", path = "/usr/bin/dwp"),
+ tool_path(name = "gcc", path = "/usr/bin/clang"),
+ tool_path(name = "gcov", path = "/usr/bin/gcov"),
+ tool_path(name = "ld", path = "/usr/bin/ld"),
+ tool_path(name = "nm", path = "/usr/bin/nm"),
+ tool_path(name = "objcopy", path = "/usr/bin/objcopy"),
+ tool_path(name = "objdump", path = "/usr/bin/objdump"),
+ tool_path(name = "strip", path = "/usr/bin/strip"),
+ ]
+ else:
+ tool_paths = [
+ tool_path(name = "ar", path = "/bin/false"),
+ tool_path(name = "compat-ld", path = "/bin/false"),
+ tool_path(name = "cpp", path = "/bin/false"),
+ tool_path(name = "dwp", path = "/bin/false"),
+ tool_path(name = "gcc", path = "/bin/false"),
+ tool_path(name = "gcov", path = "/bin/false"),
+ tool_path(name = "ld", path = "/bin/false"),
+ tool_path(name = "nm", path = "/bin/false"),
+ tool_path(name = "objcopy", path = "/bin/false"),
+ tool_path(name = "objdump", path = "/bin/false"),
+ tool_path(name = "strip", path = "/bin/false"),
+ ]
+
+ out = ctx.actions.declare_file(ctx.label.name)
+ ctx.actions.write(out, "Fake executable")
+ return [
+ cc_common.create_cc_toolchain_config_info(
+ ctx = ctx,
+ features = features,
+ action_configs = action_configs,
+ cxx_builtin_include_directories = cxx_builtin_include_directories,
+ toolchain_identifier = toolchain_identifier,
+ host_system_name = host_system_name,
+ target_system_name = target_system_name,
+ target_cpu = cpu,
+ target_libc = target_libc,
+ compiler = compiler,
+ abi_version = abi_version,
+ abi_libc_version = abi_libc_version,
+ tool_paths = tool_paths,
+ ),
+ DefaultInfo(
+ executable = out,
+ ),
+ ]
+
+cc_toolchain_config = rule(
+ implementation = _impl,
+ attrs = {
+ "cpu": attr.string(mandatory = True),
+ },
+ provides = [CcToolchainConfigInfo],
+ executable = True,
+)
