func rewritetonop(target *ld.Target, ldr *loader.Loader, su *loader.SymbolBuilder, offset int64, mask, check uint32) {
	rewritetoinsn(target, ldr, su, offset, mask, check, OP_NOP)
}

func adddynrel(target *ld.Target, ldr *loader.Loader, syms *ld.ArchSyms, s loader.Sym, r loader.Reloc, rIdx int) bool {
	if target.IsElf() {
		return addelfdynrel(target, ldr, syms, s, r, rIdx)
	} else if target.IsAIX() {

	// catch wayward programs. Architectures that do not define a padding value
	// are padded with zeros.
	CodePad []byte

	// Plan 9 variables.
	Plan9Magic  uint32
	Plan9_64Bit bool

	Adddynrel func(*Target, *loader.Loader, *ArchSyms, loader.Sym, loader.Reloc, int) bool
	Archinit  func(*Link)
	// Archreloc is an arch-specific hook that assists in relocation processing