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Diffstat (limited to 'cc/private/toolchain/unix_cc_toolchain_config.bzl')
| -rw-r--r-- | cc/private/toolchain/unix_cc_toolchain_config.bzl | 1200 |
1 files changed, 1200 insertions, 0 deletions
diff --git a/cc/private/toolchain/unix_cc_toolchain_config.bzl b/cc/private/toolchain/unix_cc_toolchain_config.bzl new file mode 100644 index 0000000..4325a68 --- /dev/null +++ b/cc/private/toolchain/unix_cc_toolchain_config.bzl @@ -0,0 +1,1200 @@ +# 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("@rules_cc//cc:action_names.bzl", "ACTION_NAMES") +load( + "@rules_cc//cc:cc_toolchain_config_lib.bzl", + "feature", + "feature_set", + "flag_group", + "flag_set", + "tool_path", + "variable_with_value", + "with_feature_set", +) + +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, +] + +lto_index_actions = [ + ACTION_NAMES.lto_index_for_executable, + ACTION_NAMES.lto_index_for_dynamic_library, + ACTION_NAMES.lto_index_for_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 = all_compile_actions, + flag_groups = ([ + flag_group( + flags = ctx.attr.compile_flags, + ), + ] if ctx.attr.compile_flags else []), + ), + flag_set( + actions = all_compile_actions, + 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 = all_compile_actions, + 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 = all_cpp_compile_actions + [ACTION_NAMES.lto_backend], + 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 + lto_index_actions, + flag_groups = ([ + flag_group( + flags = ctx.attr.link_flags, + ), + ] if ctx.attr.link_flags else []), + ), + flag_set( + actions = all_link_actions + lto_index_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, + ] + all_link_actions + lto_index_actions, + 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 = all_compile_actions, + 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 = all_compile_actions, + 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 + lto_index_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, + ACTION_NAMES.lto_index_for_executable, + ACTION_NAMES.lto_index_for_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", "-g"], + 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}", + "-Wno-profile-instr-unprofiled", + "-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 + lto_index_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 + lto_index_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 + lto_index_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, + ACTION_NAMES.lto_index_for_dynamic_library, + ACTION_NAMES.lto_index_for_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, + ] + all_link_actions + lto_index_actions, + 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, + ] + all_link_actions + lto_index_actions, + 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 + lto_index_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 = all_link_actions + lto_index_actions + [ + "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 + lto_index_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, + ACTION_NAMES.lto_index_for_dynamic_library, + ACTION_NAMES.lto_index_for_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 + lto_index_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 + lto_index_actions, + flag_groups = [ + flag_group( + flags = ["%{user_link_flags}"], + iterate_over = "user_link_flags", + expand_if_available = "user_link_flags", + ), + ] + ([flag_group(flags = ctx.attr.link_libs)] if ctx.attr.link_libs else []), + ), + ], + ) + + 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 = [ + "-mllvm", + "-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 + lto_index_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 = all_link_actions + lto_index_actions, + 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, + ACTION_NAMES.lto_index_for_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, + ACTION_NAMES.lto_index_for_dynamic_library, + ACTION_NAMES.lto_index_for_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 = all_link_actions + lto_index_actions, + 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 = all_link_actions + lto_index_actions, + flag_groups = ([ + flag_group(flags = ctx.attr.coverage_link_flags), + ] if ctx.attr.coverage_link_flags else []), + ), + ], + ) + + thinlto_feature = feature( + name = "thin_lto", + flag_sets = [ + flag_set( + actions = [ + ACTION_NAMES.c_compile, + ACTION_NAMES.cpp_compile, + ] + all_link_actions + lto_index_actions, + flag_groups = [ + flag_group(flags = ["-flto=thin"]), + flag_group( + expand_if_available = "lto_indexing_bitcode_file", + flags = [ + "-Xclang", + "-fthin-link-bitcode=%{lto_indexing_bitcode_file}", + ], + ), + ], + ), + flag_set( + actions = [ACTION_NAMES.linkstamp_compile], + flag_groups = [flag_group(flags = ["-DBUILD_LTO_TYPE=thin"])], + ), + flag_set( + actions = lto_index_actions, + flag_groups = [ + flag_group(flags = [ + "-flto=thin", + "-Wl,-plugin-opt,thinlto-index-only%{thinlto_optional_params_file}", + "-Wl,-plugin-opt,thinlto-emit-imports-files", + "-Wl,-plugin-opt,thinlto-prefix-replace=%{thinlto_prefix_replace}", + ]), + flag_group( + expand_if_available = "thinlto_object_suffix_replace", + flags = [ + "-Wl,-plugin-opt,thinlto-object-suffix-replace=%{thinlto_object_suffix_replace}", + ], + ), + flag_group( + expand_if_available = "thinlto_merged_object_file", + flags = [ + "-Wl,-plugin-opt,obj-path=%{thinlto_merged_object_file}", + ], + ), + ], + ), + flag_set( + actions = [ACTION_NAMES.lto_backend], + flag_groups = [ + flag_group(flags = [ + "-c", + "-fthinlto-index=%{thinlto_index}", + "-o", + "%{thinlto_output_object_file}", + "-x", + "ir", + "%{thinlto_input_bitcode_file}", + ]), + ], + ), + ], + ) + + 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, + thinlto_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, + gcc_coverage_map_format_feature, + llvm_coverage_map_format_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, + gcc_coverage_map_format_feature, + llvm_coverage_map_format_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 = { + "abi_libc_version": attr.string(mandatory = True), + "abi_version": attr.string(mandatory = True), + "compile_flags": attr.string_list(), + "compiler": attr.string(mandatory = True), + "coverage_compile_flags": attr.string_list(), + "coverage_link_flags": attr.string_list(), + "cpu": attr.string(mandatory = True), + "cxx_builtin_include_directories": attr.string_list(), + "cxx_flags": attr.string_list(), + "dbg_compile_flags": attr.string_list(), + "host_system_name": attr.string(mandatory = True), + "link_flags": attr.string_list(), + "link_libs": attr.string_list(), + "opt_compile_flags": attr.string_list(), + "opt_link_flags": attr.string_list(), + "supports_start_end_lib": attr.bool(), + "target_libc": attr.string(mandatory = True), + "target_system_name": attr.string(mandatory = True), + "tool_paths": attr.string_dict(), + "toolchain_identifier": attr.string(mandatory = True), + "unfiltered_compile_flags": attr.string_list(), + }, + provides = [CcToolchainConfigInfo], +) |