switch rt := r.Type(); rt {
		default:
			if !target.IsAIX() {
				return val, nExtReloc, false
			}
		case objabi.R_POWER_TLS, objabi.R_POWER_TLS_IE_PCREL34, objabi.R_POWER_TLS_LE_TPREL34, objabi.R_ADDRPOWER_GOT_PCREL34:
			nExtReloc = 1
			return val, nExtReloc, true
		case objabi.R_POWER_TLS_LE, objabi.R_POWER_TLS_IE:
			if target.IsAIX() && rt == objabi.R_POWER_TLS_LE {

	ldr.SetSymSect(text, sect)
	if ctxt.IsAIX() && ctxt.IsExternal() {
		// Setting runtime.text has a real symbol prevents ld to
		// change its base address resulting in wrong offsets for
		// reflect methods.
		u := ldr.MakeSymbolUpdater(text)
		u.SetAlign(sect.Align)
		u.SetSize(8)
	}

	if (ctxt.DynlinkingGo() && ctxt.IsDarwin()) || (ctxt.IsAIX() && ctxt.IsExternal()) {
		ldr.SetSymSect(etext, sect)

	if ctxt.IsDarwin() {
		bench.Start("domacho")
		ctxt.domacho()
	}
	if ctxt.IsWindows() {
		bench.Start("dope")
		ctxt.dope()
		bench.Start("windynrelocsyms")
		ctxt.windynrelocsyms()
	}
	if ctxt.IsAIX() {
		bench.Start("doxcoff")
		ctxt.doxcoff()
	}

	bench.Start("textbuildid")
	ctxt.textbuildid()
	bench.Start("addexport")
	ctxt.setArchSyms()
	ctxt.addexport()
	bench.Start("Gentext")

var BaseChunkIdx = func() ChunkIdx {
	var prefix uintptr
	if pageAlloc64Bit != 0 {
		prefix = 0xc000
	} else {
		prefix = 0x100
	}
	baseAddr := prefix * pallocChunkBytes
	if goos.IsAix != 0 {
		baseAddr += arenaBaseOffset
	}
	return ChunkIdx(chunkIndex(baseAddr))
}()

// PageBase returns an address given a chunk index and a page index
// relative to that chunk.

	//
	// On other platforms, the user address space is contiguous
	// and starts at 0, so no offset is necessary.
	arenaBaseOffset = 0xffff800000000000*goarch.IsAmd64 + 0x0a00000000000000*goos.IsAix
	// A typed version of this constant that will make it into DWARF (for viewcore).
	arenaBaseOffsetUintptr = uintptr(arenaBaseOffset)

	// Max number of threads to run garbage collection.

	ldr := ctxt.loader
	s := ldr.Lookup(a, 0)
	if s == 0 {
		Errorf(nil, "missing entry symbol %q", a)
		return 0
	}
	st := ldr.SymType(s)
	if st == 0 {
		return *FlagTextAddr
	}
	if !ctxt.IsAIX() && st != sym.STEXT {
		ldr.Errorf(s, "entry not text")
	}
	return ldr.SymValue(s)
}

func (ctxt *Link) callgraph() {
	if !*FlagC {
		return
	}

	ldr := ctxt.loader