# 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 and OpenBSD.""" 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 is_bsd = cpu == "k8" or cpu == "freebsd" or cpu == "openbsd" compiler = "compiler" toolchain_identifier = "local_freebsd" host_system_name = "local" if is_bsd else "armeabi-v7a" target_system_name = "local" if is_bsd else "armeabi-v7a" target_libc = "local" if is_bsd else "armeabi-v7a" abi_version = "local" if is_bsd else "armeabi-v7a" abi_libc_version = "local" if is_bsd 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 is_bsd 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 = [ "-Wl,-undefined,dynamic_lookup", "-Wl,--undefined-version", "-lc++", "-Wl,-z,relro,-z,now", "-no-canonical-prefixes", "-L%%LOCALBASE%%/lib", ], ), ], ), 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++17"])], ), ], ) 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 is_bsd: 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 (is_bsd): cxx_builtin_include_directories = ["%%LLVM_PREFIX%%/lib/clang/%%LLVM_VERSION%%.0.0", "%%LLVM_PREFIX%%/lib/clang/%%LLVM_VERSION%%/include", "/usr/include/c++/v1", "/usr/local/include", "/usr/include"] else: cxx_builtin_include_directories = [] if is_bsd: tool_paths = [ tool_path(name = "ar", path = "/usr/bin/ar"), tool_path(name = "cpp", path = "%%LLVM_PREFIX%%/bin/clang-cpp"), tool_path(name = "dwp", path = "/usr/bin/dwp"), tool_path(name = "gcc", path = "%%LLVM_PREFIX%%/bin/clang-%%LLVM_VERSION%%"), tool_path(name = "gcov", path = "/usr/bin/gcov"), tool_path(name = "ld", path = "%%LLVM_PREFIX%%/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 = "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, )