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| gc_symbol_list = `gcc -shared -I. -I.ext/include/x86_64-linux -I./include -I. -I./enc/unicode/15.0.0 -fPIC -Wl,--unresolved-symbols=report-all gc.c -o libgc.so 2>&1` | |
| libruby_symbol_list = `nm -C libruby.so.3.3.0`.split("\n") | |
| project_tags = `ctags -f - -R --tag-relative=yes --languages=C,C++ --extras=+f --exclude=.ext --exclude=rb_mjit_header.h .` | |
| class CTagNode | |
| include Comparable | |
| attr_reader :symbol, :file, :type | |
| attr_accessor :visibility | |
| def self.parse(node_line) | |
| symbol, file, address, type, fields = node_line.split("\t").map(&:chomp) | |
| new(symbol, file, address, type, fields) | |
| end | |
| def initialize(symbol, file, address, type, fields) | |
| @symbol = symbol | |
| @file = file || "unknown" | |
| @type = type | |
| @fields = fields | |
| end | |
| def ==(name) | |
| @symbol == name | |
| end | |
| def <=>(o) | |
| return nil unless @symbol == o.symbol | |
| case @type | |
| when o.type | |
| return 0 | |
| when 'f' | |
| return 1 | |
| else | |
| return -1 | |
| end | |
| end | |
| end | |
| class CTagParser | |
| def initialize(tags) | |
| @tags = tags | |
| end | |
| def parse | |
| @tags.lines(chomp: true) | |
| .select{ !_1.start_with?('!') } | |
| .compact | |
| .map { CTagNode.parse(_1) } | |
| end | |
| end | |
| all_tags = CTagParser.new(project_tags).parse | |
| undefined_symbols = gc_symbol_list | |
| .split("\n") | |
| .map { (m = _1.match(/undefined reference to `(?<fname>.*)'/)) && m[:fname] } | |
| .compact | |
| .uniq | |
| csymbols = undefined_symbols.map do |sym_name| | |
| line = libruby_symbol_list | |
| .select { _1.match(/\s+#{sym_name}$/) } | |
| .shift | |
| .split(" ") | |
| (all_tags.select { _1 == sym_name }.sort.first || CTagNode.parse(sym_name)) | |
| .tap { _1.visibility = line[1] } | |
| end | |
| header = "|%3s|%50s|%50s|" % ["vis", "symbol name", "filename"] | |
| puts header | |
| puts "-" * header.length | |
| csymbols.sort_by { [_1.file, _1.visibility, _1.symbol ] }.each do | |
| puts("|%3s|%50s|%50s|" % [_1.visibility, _1.symbol, _1.file]) | |
| end |
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