nfuncdata = int(p.From.Offset + 1)
		}
	}

	pcln.Pcdata = make([]*LSym, npcdata)
	pcln.Funcdata = make([]*LSym, nfuncdata)

	pcln.Pcsp = funcpctab(ctxt, cursym, "pctospadj", pctospadj, nil)
	pcln.Pcfile = funcpctab(ctxt, cursym, "pctofile", pctofileline, pcln)
	pcln.Pcline = funcpctab(ctxt, cursym, "pctoline", pctofileline, nil)

	if ctxt.Target.IsRISCV64() {
		// Avoid adding local symbols to the pcln table - RISC-V
		// linking generates a very large number of these, particularly
		// for HI20 symbols (which we need to load in order to be able
		// to resolve relocations). Unnecessarily including all of
		// these symbols quickly blows out the size of the pcln table
		// and overflows hash buckets.
		symName := ctxt.loader.SymName(s)

	// If the raw file implements Liner directly, use that.
	// Currently, only Go intermediate objects and archives (goobj) use this path.
	if pcln, ok := e.raw.(Liner); ok {
		return pcln, nil
	}
	// Otherwise, read the pcln tables and build a Liner out of that.
	textStart, symtab, pclntab, err := e.raw.pcln()
	if err != nil {
		return nil, err
	}
	syms, err := e.raw.symbols()
	if err == nil {
		for _, s := range syms {

	// No support for build ID.
	return ""
}

func (f *file) SourceLine(addr uint64) ([]driver.Frame, error) {
	if f.pcln == nil {
		pcln, err := f.file.PCLineTable()
		if err != nil {
			return nil, err
		}
		f.pcln = pcln
	}
	addr -= f.offset
	file, line, fn := f.pcln.PCToLine(addr)
	if fn != nil {
		frame := []driver.Frame{
			{
				Func: fn.Name,
				File: file,
				Line: line,

		}
		if fn.Pcln.Pcsp != nil && fn.Pcln.Pcsp.Size != 0 {
			w.aux1(goobj.AuxPcsp, fn.Pcln.Pcsp)
		}
		if fn.Pcln.Pcfile != nil && fn.Pcln.Pcfile.Size != 0 {
			w.aux1(goobj.AuxPcfile, fn.Pcln.Pcfile)
		}
		if fn.Pcln.Pcline != nil && fn.Pcln.Pcline.Size != 0 {
			w.aux1(goobj.AuxPcline, fn.Pcln.Pcline)
		}
		if fn.Pcln.Pcinline != nil && fn.Pcln.Pcinline.Size != 0 {

	dat := read115Executable(t)
	const textStart = 0x1001000
	pcln := NewLineTable(dat, textStart)
	tab, err := NewTable(nil, pcln)
	if err != nil {
		t.Fatal(err)
	}
	var f *Func
	var pc uint64
	pc, f, err = tab.LineToPC("/tmp/hello.go", 3)
	if err != nil {
		t.Fatal(err)
	}
	if pcln.version != ver12 {
		t.Fatal("Expected pcln to parse as an older version")
	}
	if pc != 0x105c280 {

	"golang.org/x/arch/ppc64/ppc64asm"
	"golang.org/x/arch/x86/x86asm"
)

// Disasm is a disassembler for a given File.
type Disasm struct {
	syms      []Sym            //symbols in file, sorted by address
	pcln      Liner            // pcln table
	text      []byte           // bytes of text segment (actual instructions)
	textStart uint64           // start PC of text
	textEnd   uint64           // end PC of text

	}

	// The pcHeader
	moduledata.AddAddr(ctxt.Arch, pcln.pcheader)

	// The function name slice
	sliceSym(pcln.funcnametab)

	// The cutab slice
	sliceSym(pcln.cutab)

	// The filetab slice
	sliceSym(pcln.filetab)

	// The pctab slice
	sliceSym(pcln.pctab)

	// The pclntab slice
	slice(pcln.pclntab, uint64(ldr.SymSize(pcln.pclntab)))

	// The ftab slice

// Starting with Go 1.3, the Go symbol table no longer includes symbol data.
func NewTable(symtab []byte, pcln *LineTable) (*Table, error) {
	var n int
	err := walksymtab(symtab, func(s sym) error {
		n++
		return nil
	})
	if err != nil {
		return nil, err
	}

	var t Table
	if pcln.isGo12() {
		t.go12line = pcln
	}
	fname := make(map[uint16]string)
	t.Syms = make([]Sym, 0, n)
	nf := 0
	nz := 0

}

// getFileIndexAndLine returns the relative file index (local to the CU), and
// the relative line number for a position (i.e., as adjusted by a //line
// directive). This is the file/line visible in the final binary (pcfile, pcln,
// etc).
func (ctxt *Link) getFileIndexAndLine(xpos src.XPos) (int, int32) {
	pos := ctxt.InnermostPos(xpos)
	if !pos.IsKnown() {
		pos = src.Pos{}
	}
	return pos.FileIndex(), int32(pos.RelLine())