// This will reduce peak RSS for the link (and speed up linking of
	// large applications), since when the archive command runs we
	// won't be holding onto all of the linker's live memory.
	if syscallExecSupported && !ownTmpDir {
		runAtExitFuncs()
		ctxt.execArchive(argv)
		panic("should not get here")
	}

	// Otherwise invoke 'ar' in the usual way (fork + exec).