dwarf.Sleb128put(dctxt, s, deltaLC)
	}

	// Output the special opcode.
	dctxt.AddUint8(s, uint8(opcode))
}

// implement dwarf.Context
type dwCtxt struct{ *Link }

func (c dwCtxt) PtrSize() int {
	return c.Arch.PtrSize
}
func (c dwCtxt) Size(s dwarf.Sym) int64 {
	return s.(*LSym).Size
}
func (c dwCtxt) AddInt(s dwarf.Sym, size int, i int64) {
	ls := s.(*LSym)

// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Package dwarf generates DWARF debugging information.
// DWARF generation is split between the compiler and the linker,
// this package contains the shared code.
package dwarf

import (
	"bytes"
	"cmd/internal/src"
	"errors"
	"fmt"
	"internal/buildcfg"
	"os/exec"
	"sort"
	"strconv"
	"strings"

	}
	return binary.Write(r.f, r.order, data)
}

// machoCombineDwarf merges dwarf info generated by dsymutil into a macho executable.
//
// With internal linking, DWARF is embedded into the executable, this lets us do the
// same for external linking.
// exef is the file of the executable with no DWARF. It must have enough room in the macho
// header to add the DWARF sections. (Use ld's -headerpad option)
// exem is the macho representation of exef.

		if err != nil {
			t.Fatalf("error reading DWARF: %v", err)
		}
		switch entry.Tag {
		case dwarf.TagArrayType, dwarf.TagPointerType, dwarf.TagStructType, dwarf.TagBaseType, dwarf.TagSubroutineType, dwarf.TagTypedef:
		default:
			continue
		}
		typ, err := d.Type(entry.Offset)
		if err != nil {
			t.Fatalf("can't read type: %v", err)
		}
		if typ.Size() < 0 {

// DWARF 4 class. For example, DWARF 2 uses "constant" for constants
// as well as all types of section offsets, but the reader will
// canonicalize attributes in DWARF 2 files that refer to section
// offsets to one of the Class*Ptr classes, even though these classes
// were only defined in DWARF 3.
type Class int

const (
	// ClassUnknown represents values of unknown DWARF class.

	if opcode >= r.opcodeBase {
		// Special opcode [DWARF2 6.2.5.1, DWARF4 6.2.5.1]
		adjustedOpcode := opcode - r.opcodeBase
		r.advancePC(adjustedOpcode / r.lineRange)
		lineDelta := r.lineBase + adjustedOpcode%r.lineRange
		r.state.Line += lineDelta
		goto emit
	}

	switch opcode {
	case 0:
		// Extended opcode [DWARF2 6.2.5.3]
		length := Offset(r.buf.uint())
		startOff := r.buf.off

	AttrDefaulted            Attr = 0x8B
	AttrLoclistsBase         Attr = 0x8C
)

func (a Attr) GoString() string {
	if str, ok := _Attr_map[a]; ok {
		return "dwarf.Attr" + str
	}
	return "dwarf." + a.String()
}

// A format is a DWARF data encoding format.
type format uint32

const (
	// value formats
	formAddr        format = 0x01
	formDwarfBlock2 format = 0x03
	formDwarfBlock4 format = 0x04

pkg debug/dwarf, const ClassLinePtr = 6
pkg debug/dwarf, const ClassLinePtr Class
pkg debug/dwarf, const ClassLocListPtr = 7
pkg debug/dwarf, const ClassLocListPtr Class
pkg debug/dwarf, const ClassMacPtr = 8
pkg debug/dwarf, const ClassMacPtr Class
pkg debug/dwarf, const ClassRangeListPtr = 9
pkg debug/dwarf, const ClassRangeListPtr Class
pkg debug/dwarf, const ClassReference = 10
pkg debug/dwarf, const ClassReference Class

func assembleInlines(fnsym *obj.LSym, dwVars []*dwarf.Var) dwarf.InlCalls {
	var inlcalls dwarf.InlCalls

	if base.Debug.DwarfInl != 0 {
		base.Ctxt.Logf("assembling DWARF inlined routine info for %v\n", fnsym.Name)
	}

	// This maps inline index (from Ctxt.InlTree) to index in inlcalls.Calls
	imap := make(map[int]int)

	// Walk progs to build up the InlCalls data structure
	var prevpos src.XPos

package dwarf_test

import (
	. "debug/dwarf"
	"encoding/binary"
	"path/filepath"
	"reflect"
	"testing"
)

func TestSplit(t *testing.T) {
	// debug/dwarf doesn't (currently) support split DWARF, but
	// the attributes that pointed to the split DWARF used to
	// cause loading the DWARF data to fail entirely (issue
	// #12592). Test that we can at least read the DWARF data.
	d := elfData(t, "testdata/split.elf")