third-party/mruby/tasks/toolchains/gcc.rake

   1 MRuby::Toolchain.new(:gcc) do |conf, params|
   2   default_command = params[:default_command] || 'gcc'
   3   compiler_flags = %w(-g -O3 -Wall -Wundef)
   4   c_mandatory_flags = %w(-std=gnu99)
   5   cxx_invalid_flags = %w(-Wdeclaration-after-statement -Werror-implicit-function-declaration)
   6
   7   [conf.cc, conf.objc, conf.asm, conf.cxx].each do |compiler|
   8     if compiler == conf.cxx
   9       compiler.command = ENV['CXX'] || default_command.sub(/cc|$/, '++')
  10       compiler.flags = [ENV['CXXFLAGS'] || ENV['CFLAGS'] || compiler_flags]
  11     else
  12       compiler.command = ENV['CC'] || default_command
  13       compiler.flags = [c_mandatory_flags, ENV['CFLAGS'] || [compiler_flags, cxx_invalid_flags, %w(-Wwrite-strings)]]
  14     end
  15     compiler.option_include_path = %q[-I"%s"]
  16     compiler.option_define = '-D%s'
  17     compiler.compile_options = %q[%{flags} -MMD -o "%{outfile}" -c "%{infile}"]
  18     compiler.cxx_compile_flag = '-x c++ -std=gnu++03'
  19     compiler.cxx_exception_flag = '-fexceptions'
  20     compiler.cxx_invalid_flags = c_mandatory_flags + cxx_invalid_flags
  21   end
  22
  23   conf.linker do |linker|
  24     linker.command = ENV['LD'] || ENV['CXX'] || ENV['CC'] || default_command
  25     linker.flags = [ENV['LDFLAGS'] || %w()]
  26     linker.libraries = %w(m)
  27     linker.library_paths = []
  28     linker.option_library = '-l%s'
  29     linker.option_library_path = '-L%s'
  30     linker.link_options = '%{flags} -o "%{outfile}" %{objs} %{flags_before_libraries} %{libs} %{flags_after_libraries}'
  31   end
  32
  33   [[conf.cc, 'c'], [conf.cxx, 'c++']].each do |cc, lang|
  34     cc.instance_variable_set :@header_search_language, lang
  35     def cc.header_search_paths
  36       if @header_search_command != command
  37         result = `echo | #{build.filename command} -x#{@header_search_language} -Wp,-v - -fsyntax-only 2>&1`
  38         result = `echo | #{command} -x#{@header_search_language} -Wp,-v - -fsyntax-only 2>&1` if $?.exitstatus != 0
  39         return include_paths if  $?.exitstatus != 0
  40
  41         @frameworks = []
  42         @header_search_paths = result.lines.map { |v|
  43           framework = v.match(/^ (.*)(?: \(framework directory\))$/)
  44           if framework
  45             @frameworks << framework[1]
  46             next nil
  47           end
  48
  49           v.match(/^ (.*)$/)
  50         }.compact.map { |v| v[1] }.select { |v| File.directory? v }
  51         @header_search_paths += include_paths
  52         @header_search_command = command
  53       end
  54       @header_search_paths
  55     end
  56   end
  57
  58   def conf.enable_sanitizer(*opts)
  59     fail 'sanitizer already set' if @sanitizer_list
  60
  61     @sanitizer_list = opts
  62     flg = "-fsanitize=#{opts.join ','}"
  63     [self.cc, self.cxx, self.linker].each{|cmd| cmd.flags << flg }
  64   end
  65 end