System Initiative

# Copyright (c) Meta Platforms, Inc. and affiliates. # # This source code is licensed under both the MIT license found in the # LICENSE-MIT file in the root directory of this source tree and the Apache # License, Version 2.0 found in the LICENSE-APACHE file in the root directory # of this source tree. load("flags_parser_utils.bxl", "flatten_flag_lists", "get_linker_settings_from_flags") load("get_attrs.bxl", "get_attrs") load("utils.bxl", "get_project_file_path", "h") def get_linker_settings(attrs: dict, buck_root: str) -> dict: linker_flags = flatten_flag_lists(attrs["linker_flags"]) linker_settings = get_linker_settings_from_flags(linker_flags, buck_root) if "SubSystem" not in linker_settings: linker_settings["SubSystem"] = "CONSOLE" return linker_settings def get_exported_linker_settings(attrs: dict, buck_root: str) -> dict: exported_linker_flags = flatten_flag_lists(attrs["exported_linker_flags"]) exported_linker_settings = get_linker_settings_from_flags(exported_linker_flags, buck_root) return exported_linker_settings def _format_linker_settings(linker_settings: dict) -> dict: # Starlark passed in reference of dict. We don't want to accidentally override values, thus creating hard copy. concat_linker_settings = dict(linker_settings) concat_linker_settings["AdditionalLibraryDirectories"] = ";".join(linker_settings["AdditionalLibraryDirectories"] + ["%(AdditionalLibraryDirectories)"]) concat_linker_settings["AdditionalOptions"] = " ".join(linker_settings["AdditionalOptions"] + ["%(AdditionalOptions)"]) concat_linker_settings["AdditionalDependencies"] = ";".join(linker_settings["AdditionalDependencies"] + ["%(AdditionalDependencies)"]) concat_linker_settings["IgnoreDefaultLibraryNames"] = ";".join(linker_settings["IgnoreDefaultLibraryNames"] + ["%(IgnoreDefaultLibraryNames)"]) if "ForceSymbolReferences" in linker_settings: concat_linker_settings["ForceSymbolReferences"] = ";".join(linker_settings["ForceSymbolReferences"] + ["%(ForceSymbolReferences)"]) return concat_linker_settings def gen_linker_settings(linker_settings: dict): concat_linker_settings = _format_linker_settings(linker_settings) return h( "Link", [ h(key, value, indent_level = 3) for key, value in concat_linker_settings.items() ], { "Label": "LinkerSettings", }, indent_level = 2, ) def _main(bxl_ctx): target = bxl_ctx.cli_args.target target_node = bxl_ctx.configured_targets(target) actions = bxl_ctx.bxl_actions().actions attrs = get_attrs(target_node, bxl_ctx) attrs_outfile = actions.write_json(get_project_file_path(target_node.label, ".json"), attrs) out = actions.declare_output(get_project_file_path(target_node.label, ".out")) def f(ctx, artifacts, outputs, attrs_outfile = attrs_outfile, out = out, buck_root = bxl_ctx.root()): attrs_input = artifacts[attrs_outfile].read_json() settings = {} settings["linker_settings"] = get_linker_settings(attrs_input, buck_root) settings["exported_linker_settings"] = get_exported_linker_settings(attrs_input, buck_root) ctx.bxl_actions().actions.write_json(outputs[out].as_output(), settings) actions.dynamic_output( dynamic = [attrs_outfile], inputs = [], outputs = [out.as_output()], f = f, ) bxl_ctx.output.print(bxl_ctx.output.ensure(out).abs_path()) main = bxl_main( impl = _main, cli_args = { "log_level": cli_args.int(default = 30), "target": cli_args.target_label(), }, )