129 lines
4.7 KiB
Ruby
129 lines
4.7 KiB
Ruby
module Rscons
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module Builders
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# A default Rscons builder which knows how to produce an object file from
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# various types of source files.
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class Object < Builder
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# Mapping of known sources from which to build object files.
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KNOWN_SUFFIXES = {
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"AS" => "ASSUFFIX",
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"CC" => "CSUFFIX",
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"CXX" => "CXXSUFFIX",
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"DC" => "DSUFFIX",
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}
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# Return default construction variables for the builder.
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#
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# @param env [Environment] The Environment using the builder.
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#
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# @return [Hash] Default construction variables for the builder.
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def default_variables(env)
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{
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'OBJSUFFIX' => ['.o'],
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'DEPFILESUFFIX' => '.mf',
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'CPPDEFPREFIX' => '-D',
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'INCPREFIX' => '-I',
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'AS' => '${CC}',
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'ASFLAGS' => [],
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'ASSUFFIX' => ['.S'],
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'ASPPPATH' => '${CPPPATH}',
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'ASPPFLAGS' => '${CPPFLAGS}',
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'ASDEPGEN' => ['-MMD', '-MF', '${_DEPFILE}'],
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'ASCMD' => ['${AS}', '-c', '-o', '${_TARGET}', '${ASDEPGEN}', '${INCPREFIX}${ASPPPATH}', '${ASPPFLAGS}', '${ASFLAGS}', '${_SOURCES}'],
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'CPPFLAGS' => ['${CPPDEFPREFIX}${CPPDEFINES}'],
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'CPPDEFINES' => [],
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'CPPPATH' => [],
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'CCFLAGS' => [],
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'CC' => 'gcc',
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'CFLAGS' => [],
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'CSUFFIX' => ['.c'],
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'CCDEPGEN' => ['-MMD', '-MF', '${_DEPFILE}'],
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'CCCMD' => ['${CC}', '-c', '-o', '${_TARGET}', '${CCDEPGEN}', '${INCPREFIX}${CPPPATH}', '${CPPFLAGS}', '${CFLAGS}', '${CCFLAGS}', '${_SOURCES}'],
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'CXX' => 'g++',
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'CXXFLAGS' => [],
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'CXXSUFFIX' => ['.cc', '.cpp', '.cxx', '.C'],
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'CXXDEPGEN' => ['-MMD', '-MF', '${_DEPFILE}'],
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'CXXCMD' =>['${CXX}', '-c', '-o', '${_TARGET}', '${CXXDEPGEN}', '${INCPREFIX}${CPPPATH}', '${CPPFLAGS}', '${CXXFLAGS}', '${CCFLAGS}', '${_SOURCES}'],
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'DC' => 'gdc',
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'DFLAGS' => [],
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'DSUFFIX' => ['.d'],
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'DDEPGEN' => ['-MMD', '-MF', '${_DEPFILE}'],
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'D_IMPORT_PATH' => [],
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'DCCMD' => ['${DC}', '-c', '-o', '${_TARGET}', '${DDEPGEN}', '${INCPREFIX}${D_IMPORT_PATH}', '${DFLAGS}', '${_SOURCES}'],
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}
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end
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# Return whether this builder object is capable of producing a given target
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# file name from a given source file name.
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#
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# @param target [String]
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# The target file name.
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# @param source [String]
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# The source file name.
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# @param env [Environment]
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# The Environment.
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#
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# @return [Boolean]
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# Whether this builder object is capable of producing a given target
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# file name from a given source file name.
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def produces?(target, source, env)
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target.end_with?(*env['OBJSUFFIX']) and
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KNOWN_SUFFIXES.find do |compiler, suffix_var|
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source.end_with?(*env[suffix_var])
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end
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end
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# Run the builder to produce a build target.
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#
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# @param options [Hash] Builder run options.
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#
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# @return [String, ThreadedCommand]
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# Target file name if target is up to date or a {ThreadedCommand}
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# to execute to build the target.
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def run(options)
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target, sources, cache, env, vars = options.values_at(:target, :sources, :cache, :env, :vars)
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vars = vars.merge({
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'_TARGET' => target,
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'_SOURCES' => sources,
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'_DEPFILE' => Rscons.set_suffix(target, env.expand_varref("${DEPFILESUFFIX}", vars)),
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})
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com_prefix = KNOWN_SUFFIXES.find do |compiler, suffix_var|
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sources.first.end_with?(*env.expand_varref("${#{suffix_var}}", vars))
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end.tap do |v|
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v.nil? and raise "Error: unknown input file type: #{sources.first.inspect}"
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end.first
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command = env.build_command("${#{com_prefix}CMD}", vars)
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# Store vars back into options so new keys are accessible in #finalize.
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options[:vars] = vars
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standard_threaded_build("#{com_prefix} #{target}", target, command, sources, env, cache)
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end
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# Finalize the build operation.
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#
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# @param options [Hash] Builder finalize options.
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#
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# @return [String, nil]
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# Name of the target file on success or nil on failure.
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def finalize(options)
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if options[:command_status]
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target, deps, cache, env, vars = options.values_at(:target, :sources, :cache, :env, :vars)
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if File.exists?(vars['_DEPFILE'])
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deps += Environment.parse_makefile_deps(vars['_DEPFILE'])
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FileUtils.rm_f(vars['_DEPFILE'])
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end
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cache.register_build(target, options[:tc].command, deps.uniq, env)
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target
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end
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end
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end
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end
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end
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