d.synthesizeslicetypes(ctxt, dwtypes.Child)
	d.synthesizemaptypes(ctxt, dwtypes.Child)
	d.synthesizechantypes(ctxt, dwtypes.Child)
}

// dwarfGenerateDebugSyms constructs debug_line, debug_frame, and
// debug_loc. It also writes out the debug_info section using symbols
// generated in dwarfGenerateDebugInfo2.
func dwarfGenerateDebugSyms(ctxt *Link) {
	if !dwarfEnabled(ctxt) {
		return
	}
	d := &dwctxt{

	case ".debug_info":
		return ".dwinfo", SSUBTYP_DWINFO
	case ".debug_frame":
		return ".dwframe", SSUBTYP_DWFRAME
	case ".debug_line":
		return ".dwline", SSUBTYP_DWLINE
	case ".debug_loc":
		return ".dwloc", SSUBTYP_DWLOC
	case ".debug_pubnames":
		return ".dwpbnms", SSUBTYP_DWPBNMS
	case ".debug_pubtypes":
		return ".dwpbtyp", SSUBTYP_DWPBTYP
	case ".debug_ranges":

			shlibname := filepath.Join(libdir, name+".shlibname")
			if ctxt.Debugvlog != 0 {
				ctxt.Logf("searching for %s.a in %s\n", name, shlibname)
			}
			if _, err := os.Stat(shlibname); err == nil {
				return addlibpath(ctxt, "internal", "internal", "", name, shlibname, zerofp)
			}
		}
		pname := filepath.Join(libdir, name+".a")
		if ctxt.Debugvlog != 0 {
			ctxt.Logf("searching for %s.a in %s\n", name, pname)
		}

			}
		}

		if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSP && p.Spadj == 0 {
			f := cursym.Func()
			if f.FuncFlag&abi.FuncFlagSPWrite == 0 {
				f.FuncFlag |= abi.FuncFlagSPWrite
				if ctxt.Debugvlog || !ctxt.IsAsm {
					ctxt.Logf("auto-SPWRITE: %s %v\n", cursym.Name, p)
					if !ctxt.IsAsm {
						ctxt.Diag("invalid auto-SPWRITE in non-assembly")
						ctxt.DiagFlush()
						log.Fatalf("bad SPWRITE")
					}