Refactor unix cc autoconfiguration to not use a template Starlark cc_toolchain_config rule
RELNOTES: None.
PiperOrigin-RevId: 249219938
diff --git a/tools/cpp/unix_cc_toolchain_config.bzl b/tools/cpp/unix_cc_toolchain_config.bzl
new file mode 100644
index 0000000..d7da983
--- /dev/null
+++ b/tools/cpp/unix_cc_toolchain_config.bzl
@@ -0,0 +1,1201 @@
+# 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"""
+
+load(
+ "@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl",
+ "feature",
+ "feature_set",
+ "flag_group",
+ "flag_set",
+ "tool_path",
+ "variable_with_value",
+ "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,
+]
+
+preprocessor_compile_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.clif_match,
+]
+
+codegen_compile_actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+]
+
+all_link_actions = [
+ ACTION_NAMES.cpp_link_executable,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+]
+
+def _impl(ctx):
+ tool_paths = [
+ tool_path(name = name, path = path)
+ for name, path in ctx.attr.tool_paths.items()
+ ]
+ action_configs = []
+
+ supports_pic_feature = feature(
+ name = "supports_pic",
+ enabled = True,
+ )
+ supports_start_end_lib_feature = feature(
+ name = "supports_start_end_lib",
+ enabled = True,
+ )
+
+ default_compile_flags_feature = feature(
+ name = "default_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.compile_flags,
+ ),
+ ] if ctx.attr.compile_flags else []),
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.dbg_compile_flags,
+ ),
+ ] if ctx.attr.dbg_compile_flags else []),
+ with_features = [with_feature_set(features = ["dbg"])],
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.opt_compile_flags,
+ ),
+ ] if ctx.attr.opt_compile_flags else []),
+ with_features = [with_feature_set(features = ["opt"])],
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.cxx_flags,
+ ),
+ ] if ctx.attr.cxx_flags 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 = ctx.attr.link_flags,
+ ),
+ ] if ctx.attr.link_flags else []),
+ ),
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.opt_link_flags,
+ ),
+ ] if ctx.attr.opt_link_flags else []),
+ with_features = [with_feature_set(features = ["opt"])],
+ ),
+ ],
+ )
+
+ dbg_feature = feature(name = "dbg")
+
+ opt_feature = feature(name = "opt")
+
+ sysroot_feature = feature(
+ name = "sysroot",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ACTION_NAMES.cpp_link_executable,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["--sysroot=%{sysroot}"],
+ expand_if_available = "sysroot",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ fdo_optimize_feature = feature(
+ name = "fdo_optimize",
+ flag_sets = [
+ flag_set(
+ actions = [ACTION_NAMES.c_compile, ACTION_NAMES.cpp_compile],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fprofile-use=%{fdo_profile_path}",
+ "-fprofile-correction",
+ ],
+ expand_if_available = "fdo_profile_path",
+ ),
+ ],
+ ),
+ ],
+ provides = ["profile"],
+ )
+
+ supports_dynamic_linker_feature = feature(name = "supports_dynamic_linker", enabled = True)
+
+ user_compile_flags_feature = feature(
+ name = "user_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["%{user_compile_flags}"],
+ iterate_over = "user_compile_flags",
+ expand_if_available = "user_compile_flags",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ unfiltered_compile_flags_feature = feature(
+ name = "unfiltered_compile_flags",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = ([
+ flag_group(
+ flags = ctx.attr.unfiltered_compile_flags,
+ ),
+ ] if ctx.attr.unfiltered_compile_flags else []),
+ ),
+ ],
+ )
+
+ library_search_directories_feature = feature(
+ name = "library_search_directories",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["-L%{library_search_directories}"],
+ iterate_over = "library_search_directories",
+ expand_if_available = "library_search_directories",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ static_libgcc_feature = feature(
+ name = "static_libgcc",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_executable,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ],
+ flag_groups = [flag_group(flags = ["-static-libgcc"])],
+ with_features = [
+ with_feature_set(features = ["static_link_cpp_runtimes"]),
+ ],
+ ),
+ ],
+ )
+
+ pic_feature = feature(
+ name = "pic",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.cpp_module_compile,
+ ],
+ flag_groups = [
+ flag_group(flags = ["-fPIC"], expand_if_available = "pic"),
+ ],
+ ),
+ ],
+ )
+
+ per_object_debug_info_feature = feature(
+ name = "per_object_debug_info",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-gsplit-dwarf"],
+ expand_if_available = "per_object_debug_info_file",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ preprocessor_defines_feature = feature(
+ name = "preprocessor_defines",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-D%{preprocessor_defines}"],
+ iterate_over = "preprocessor_defines",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ cs_fdo_optimize_feature = feature(
+ name = "cs_fdo_optimize",
+ flag_sets = [
+ flag_set(
+ actions = [ACTION_NAMES.lto_backend],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fprofile-use=%{fdo_profile_path}",
+ "-Xclang-only=-Wno-profile-instr-unprofiled",
+ "-Xclang-only=-Wno-profile-instr-out-of-date",
+ "-fprofile-correction",
+ ],
+ expand_if_available = "fdo_profile_path",
+ ),
+ ],
+ ),
+ ],
+ provides = ["csprofile"],
+ )
+
+ autofdo_feature = feature(
+ name = "autofdo",
+ flag_sets = [
+ flag_set(
+ actions = [ACTION_NAMES.c_compile, ACTION_NAMES.cpp_compile],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fauto-profile=%{fdo_profile_path}",
+ "-fprofile-correction",
+ ],
+ expand_if_available = "fdo_profile_path",
+ ),
+ ],
+ ),
+ ],
+ provides = ["profile"],
+ )
+
+ runtime_library_search_directories_feature = feature(
+ name = "runtime_library_search_directories",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ iterate_over = "runtime_library_search_directories",
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-Wl,-rpath,$EXEC_ORIGIN/%{runtime_library_search_directories}",
+ ],
+ expand_if_true = "is_cc_test",
+ ),
+ flag_group(
+ flags = [
+ "-Wl,-rpath,$ORIGIN/%{runtime_library_search_directories}",
+ ],
+ expand_if_false = "is_cc_test",
+ ),
+ ],
+ expand_if_available =
+ "runtime_library_search_directories",
+ ),
+ ],
+ with_features = [
+ with_feature_set(features = ["static_link_cpp_runtimes"]),
+ ],
+ ),
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ iterate_over = "runtime_library_search_directories",
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-Wl,-rpath,$ORIGIN/%{runtime_library_search_directories}",
+ ],
+ ),
+ ],
+ expand_if_available =
+ "runtime_library_search_directories",
+ ),
+ ],
+ with_features = [
+ with_feature_set(
+ not_features = ["static_link_cpp_runtimes"],
+ ),
+ ],
+ ),
+ ],
+ )
+
+ fission_support_feature = feature(
+ name = "fission_support",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["-Wl,--gdb-index"],
+ expand_if_available = "is_using_fission",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ shared_flag_feature = feature(
+ name = "shared_flag",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ],
+ flag_groups = [flag_group(flags = ["-shared"])],
+ ),
+ ],
+ )
+
+ random_seed_feature = feature(
+ name = "random_seed",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_codegen,
+ ACTION_NAMES.cpp_module_compile,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-frandom-seed=%{output_file}"],
+ expand_if_available = "output_file",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ includes_feature = feature(
+ name = "includes",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.clif_match,
+ ACTION_NAMES.objc_compile,
+ ACTION_NAMES.objcpp_compile,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-include", "%{includes}"],
+ iterate_over = "includes",
+ expand_if_available = "includes",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ fdo_instrument_feature = feature(
+ name = "fdo_instrument",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fprofile-generate=%{fdo_instrument_path}",
+ "-fno-data-sections",
+ ],
+ expand_if_available = "fdo_instrument_path",
+ ),
+ ],
+ ),
+ ],
+ provides = ["profile"],
+ )
+
+ cs_fdo_instrument_feature = feature(
+ name = "cs_fdo_instrument",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.lto_backend,
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fcs-profile-generate=%{cs_fdo_instrument_path}",
+ ],
+ expand_if_available = "cs_fdo_instrument_path",
+ ),
+ ],
+ ),
+ ],
+ provides = ["csprofile"],
+ )
+
+ include_paths_feature = feature(
+ name = "include_paths",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.linkstamp_compile,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.clif_match,
+ ACTION_NAMES.objc_compile,
+ ACTION_NAMES.objcpp_compile,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-iquote", "%{quote_include_paths}"],
+ iterate_over = "quote_include_paths",
+ ),
+ flag_group(
+ flags = ["-I%{include_paths}"],
+ iterate_over = "include_paths",
+ ),
+ flag_group(
+ flags = ["-isystem", "%{system_include_paths}"],
+ iterate_over = "system_include_paths",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ symbol_counts_feature = feature(
+ name = "symbol_counts",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-Wl,--print-symbol-counts=%{symbol_counts_output}",
+ ],
+ expand_if_available = "symbol_counts_output",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ llvm_coverage_map_format_feature = feature(
+ name = "llvm_coverage_map_format",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.objc_compile,
+ ACTION_NAMES.objcpp_compile,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-fprofile-instr-generate",
+ "-fcoverage-mapping",
+ ],
+ ),
+ ],
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ "objc-executable",
+ "objc++-executable",
+ ],
+ flag_groups = [
+ flag_group(flags = ["-fprofile-instr-generate"]),
+ ],
+ ),
+ ],
+ requires = [feature_set(features = ["coverage"])],
+ provides = ["profile"],
+ )
+
+ strip_debug_symbols_feature = feature(
+ name = "strip_debug_symbols",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["-Wl,-S"],
+ expand_if_available = "strip_debug_symbols",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ build_interface_libraries_feature = feature(
+ name = "build_interface_libraries",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "%{generate_interface_library}",
+ "%{interface_library_builder_path}",
+ "%{interface_library_input_path}",
+ "%{interface_library_output_path}",
+ ],
+ expand_if_available = "generate_interface_library",
+ ),
+ ],
+ with_features = [
+ with_feature_set(
+ features = ["supports_interface_shared_libraries"],
+ ),
+ ],
+ ),
+ ],
+ )
+
+ libraries_to_link_feature = feature(
+ name = "libraries_to_link",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ iterate_over = "libraries_to_link",
+ flag_groups = [
+ flag_group(
+ flags = ["-Wl,--start-lib"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file_group",
+ ),
+ ),
+ flag_group(
+ flags = ["-Wl,-whole-archive"],
+ expand_if_true =
+ "libraries_to_link.is_whole_archive",
+ ),
+ flag_group(
+ flags = ["%{libraries_to_link.object_files}"],
+ iterate_over = "libraries_to_link.object_files",
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file_group",
+ ),
+ ),
+ flag_group(
+ flags = ["%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file",
+ ),
+ ),
+ flag_group(
+ flags = ["%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "interface_library",
+ ),
+ ),
+ flag_group(
+ flags = ["%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "static_library",
+ ),
+ ),
+ flag_group(
+ flags = ["-l%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "dynamic_library",
+ ),
+ ),
+ flag_group(
+ flags = ["-l:%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "versioned_dynamic_library",
+ ),
+ ),
+ flag_group(
+ flags = ["-Wl,-no-whole-archive"],
+ expand_if_true = "libraries_to_link.is_whole_archive",
+ ),
+ flag_group(
+ flags = ["-Wl,--end-lib"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file_group",
+ ),
+ ),
+ ],
+ expand_if_available = "libraries_to_link",
+ ),
+ flag_group(
+ flags = ["-Wl,@%{thinlto_param_file}"],
+ expand_if_true = "thinlto_param_file",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ user_link_flags_feature = feature(
+ name = "user_link_flags",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["%{user_link_flags}"],
+ iterate_over = "user_link_flags",
+ expand_if_available = "user_link_flags",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ fdo_prefetch_hints_feature = feature(
+ name = "fdo_prefetch_hints",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.lto_backend,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [
+ "-Xclang-only=-mllvm",
+ "-Xclang-only=-prefetch-hints-file=%{fdo_prefetch_hints_path}",
+ ],
+ expand_if_available = "fdo_prefetch_hints_path",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ linkstamps_feature = feature(
+ name = "linkstamps",
+ flag_sets = [
+ flag_set(
+ actions = all_link_actions,
+ flag_groups = [
+ flag_group(
+ flags = ["%{linkstamp_paths}"],
+ iterate_over = "linkstamp_paths",
+ expand_if_available = "linkstamp_paths",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ gcc_coverage_map_format_feature = feature(
+ name = "gcc_coverage_map_format",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.objc_compile,
+ ACTION_NAMES.objcpp_compile,
+ "objc-executable",
+ "objc++-executable",
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-fprofile-arcs", "-ftest-coverage"],
+ expand_if_available = "gcov_gcno_file",
+ ),
+ ],
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ ],
+ flag_groups = [flag_group(flags = ["--coverage"])],
+ ),
+ ],
+ requires = [feature_set(features = ["coverage"])],
+ provides = ["profile"],
+ )
+
+ archiver_flags_feature = feature(
+ name = "archiver_flags",
+ flag_sets = [
+ flag_set(
+ actions = [ACTION_NAMES.cpp_link_static_library],
+ flag_groups = [
+ flag_group(flags = ["rcsD"]),
+ flag_group(
+ flags = ["%{output_execpath}"],
+ expand_if_available = "output_execpath",
+ ),
+ ],
+ ),
+ flag_set(
+ actions = [ACTION_NAMES.cpp_link_static_library],
+ flag_groups = [
+ flag_group(
+ iterate_over = "libraries_to_link",
+ flag_groups = [
+ flag_group(
+ flags = ["%{libraries_to_link.name}"],
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file",
+ ),
+ ),
+ flag_group(
+ flags = ["%{libraries_to_link.object_files}"],
+ iterate_over = "libraries_to_link.object_files",
+ expand_if_equal = variable_with_value(
+ name = "libraries_to_link.type",
+ value = "object_file_group",
+ ),
+ ),
+ ],
+ expand_if_available = "libraries_to_link",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ force_pic_flags_feature = feature(
+ name = "force_pic_flags",
+ flag_sets = [
+ flag_set(
+ actions = [ACTION_NAMES.cpp_link_executable],
+ flag_groups = [
+ flag_group(
+ flags = ["-pie"],
+ expand_if_available = "force_pic",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ dependency_file_feature = feature(
+ name = "dependency_file",
+ enabled = True,
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.assemble,
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_module_compile,
+ ACTION_NAMES.objc_compile,
+ ACTION_NAMES.objcpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.clif_match,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-MD", "-MF", "%{dependency_file}"],
+ expand_if_available = "dependency_file",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ dynamic_library_linker_tool_feature = feature(
+ name = "dynamic_library_linker_tool",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = [" + cppLinkDynamicLibraryToolPath + "],
+ expand_if_available = "generate_interface_library",
+ ),
+ ],
+ with_features = [
+ with_feature_set(
+ features = ["supports_interface_shared_libraries"],
+ ),
+ ],
+ ),
+ ],
+ )
+
+ output_execpath_flags_feature = feature(
+ name = "output_execpath_flags",
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ ],
+ flag_groups = [
+ flag_group(
+ flags = ["-o", "%{output_execpath}"],
+ expand_if_available = "output_execpath",
+ ),
+ ],
+ ),
+ ],
+ )
+
+ # Note that we also set --coverage for c++-link-nodeps-dynamic-library. The
+ # generated code contains references to gcov symbols, and the dynamic linker
+ # can't resolve them unless the library is linked against gcov.
+ coverage_feature = feature(
+ name = "coverage",
+ provides = ["profile"],
+ flag_sets = [
+ flag_set(
+ actions = [
+ ACTION_NAMES.preprocess_assemble,
+ ACTION_NAMES.c_compile,
+ ACTION_NAMES.cpp_compile,
+ ACTION_NAMES.cpp_header_parsing,
+ ACTION_NAMES.cpp_module_compile,
+ ],
+ flag_groups = ([
+ flag_group(flags = ctx.attr.coverage_compile_flags),
+ ] if ctx.attr.coverage_compile_flags else []),
+ ),
+ flag_set(
+ actions = [
+ ACTION_NAMES.cpp_link_dynamic_library,
+ ACTION_NAMES.cpp_link_nodeps_dynamic_library,
+ ACTION_NAMES.cpp_link_executable,
+ ],
+ flag_groups = ([
+ flag_group(flags = ctx.attr.coverage_link_flags),
+ ] if ctx.attr.coverage_link_flags else []),
+ ),
+ ],
+ )
+
+ is_linux = ctx.attr.target_libc != "macosx"
+
+ # TODO(#8303): Mac crosstool should also declare every feature.
+ if is_linux:
+ features = [
+ dependency_file_feature,
+ random_seed_feature,
+ pic_feature,
+ per_object_debug_info_feature,
+ preprocessor_defines_feature,
+ includes_feature,
+ include_paths_feature,
+ fdo_instrument_feature,
+ cs_fdo_instrument_feature,
+ cs_fdo_optimize_feature,
+ fdo_prefetch_hints_feature,
+ autofdo_feature,
+ build_interface_libraries_feature,
+ dynamic_library_linker_tool_feature,
+ symbol_counts_feature,
+ shared_flag_feature,
+ linkstamps_feature,
+ output_execpath_flags_feature,
+ runtime_library_search_directories_feature,
+ library_search_directories_feature,
+ archiver_flags_feature,
+ force_pic_flags_feature,
+ fission_support_feature,
+ strip_debug_symbols_feature,
+ coverage_feature,
+ supports_pic_feature,
+ ] + (
+ [
+ supports_start_end_lib_feature,
+ ] if ctx.attr.supports_start_end_lib else []
+ ) + [
+ default_compile_flags_feature,
+ default_link_flags_feature,
+ libraries_to_link_feature,
+ user_link_flags_feature,
+ static_libgcc_feature,
+ fdo_optimize_feature,
+ supports_dynamic_linker_feature,
+ dbg_feature,
+ opt_feature,
+ user_compile_flags_feature,
+ sysroot_feature,
+ unfiltered_compile_flags_feature,
+ ]
+ else:
+ features = [
+ supports_pic_feature,
+ ] + (
+ [
+ supports_start_end_lib_feature,
+ ] if ctx.attr.supports_start_end_lib else []
+ ) + [
+ coverage_feature,
+ default_compile_flags_feature,
+ default_link_flags_feature,
+ fdo_optimize_feature,
+ supports_dynamic_linker_feature,
+ dbg_feature,
+ opt_feature,
+ user_compile_flags_feature,
+ sysroot_feature,
+ unfiltered_compile_flags_feature,
+ ]
+
+ return cc_common.create_cc_toolchain_config_info(
+ ctx = ctx,
+ features = features,
+ action_configs = action_configs,
+ cxx_builtin_include_directories = ctx.attr.cxx_builtin_include_directories,
+ toolchain_identifier = ctx.attr.toolchain_identifier,
+ host_system_name = ctx.attr.host_system_name,
+ target_system_name = ctx.attr.target_system_name,
+ target_cpu = ctx.attr.cpu,
+ target_libc = ctx.attr.target_libc,
+ compiler = ctx.attr.compiler,
+ abi_version = ctx.attr.abi_version,
+ abi_libc_version = ctx.attr.abi_libc_version,
+ tool_paths = tool_paths,
+ )
+
+cc_toolchain_config = rule(
+ implementation = _impl,
+ attrs = {
+ "cpu": attr.string(mandatory = True),
+ "compiler": attr.string(mandatory = True),
+ "toolchain_identifier": attr.string(mandatory = True),
+ "host_system_name": attr.string(mandatory = True),
+ "target_system_name": attr.string(mandatory = True),
+ "target_libc": attr.string(mandatory = True),
+ "abi_version": attr.string(mandatory = True),
+ "abi_libc_version": attr.string(mandatory = True),
+ "cxx_builtin_include_directories": attr.string_list(),
+ "tool_paths": attr.string_dict(),
+ "compile_flags": attr.string_list(),
+ "dbg_compile_flags": attr.string_list(),
+ "opt_compile_flags": attr.string_list(),
+ "cxx_flags": attr.string_list(),
+ "link_flags": attr.string_list(),
+ "opt_link_flags": attr.string_list(),
+ "unfiltered_compile_flags": attr.string_list(),
+ "coverage_compile_flags": attr.string_list(),
+ "coverage_link_flags": attr.string_list(),
+ "supports_start_end_lib": attr.bool(),
+ },
+ provides = [CcToolchainConfigInfo],
+)
