// storage unit is "unsigned"). BitOffset values can vary depending on
// the endianness of the system. BitOffset corresponds to the
// DW_AT_bit_offset DWARF attribute that was deprecated in DWARF 4 and
// removed in DWARF 5.
//
// At most one of DataBitOffset and BitOffset will be non-zero;
// DataBitOffset/BitOffset will only be non-zero if BitSize is
// non-zero. Whether a C compiler uses one or the other

)
const (
	SSUBTYP_DWINFO  = 0x10000 // DWARF info section
	SSUBTYP_DWLINE  = 0x20000 // DWARF line-number section
	SSUBTYP_DWPBNMS = 0x30000 // DWARF public names section
	SSUBTYP_DWPBTYP = 0x40000 // DWARF public types section
	SSUBTYP_DWARNGE = 0x50000 // DWARF aranges section
	SSUBTYP_DWABREV = 0x60000 // DWARF abbreviation section
	SSUBTYP_DWSTR   = 0x70000 // DWARF strings section

package dwarf_test

import (
	. "debug/dwarf"
	"io"
	"strings"
	"testing"
)

var (
	file1C = &LineFile{Name: "/home/austin/go.dev/src/debug/dwarf/testdata/line1.c"}
	file1H = &LineFile{Name: "/home/austin/go.dev/src/debug/dwarf/testdata/line1.h"}
	file2C = &LineFile{Name: "/home/austin/go.dev/src/debug/dwarf/testdata/line2.c"}
)

func TestLineELFGCC(t *testing.T) {
	// Generated by:

		b, err := sectionData(s)
		if err != nil {
			return nil, err
		}
		dat[suffix] = b
	}

	d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, dat["ranges"], dat["str"])
	if err != nil {
		return nil, err
	}

	// Look for DWARF4 .debug_types sections and DWARF5 sections.
	for i, s := range f.Sections {
		suffix := dwarfSuffix(s)
		if suffix == "" {
			continue
		}

func (f *File) Section(name string) *Section {
	for _, s := range f.Sections {
		if s.Name == name {
			return s
		}
	}
	return nil
}

// DWARF returns the DWARF debug information for the Mach-O file.
func (f *File) DWARF() (*dwarf.Data, error) {
	dwarfSuffix := func(s *Section) string {
		switch {
		case strings.HasPrefix(s.Name, "__debug_"):
			return s.Name[8:]

					if err != nil {
						return nil
					}
					return dat
				}
			}
			break
		}
	}
	return nil
}

func (f *File) DWARF() (*dwarf.Data, error) {
	// There are many other DWARF sections, but these
	// are the ones the debug/dwarf package uses.
	// Don't bother loading others.
	var subtypes = [...]uint32{SSUBTYP_DWABREV, SSUBTYP_DWINFO, SSUBTYP_DWLINE, SSUBTYP_DWRNGES, SSUBTYP_DWSTR}

	}

	d, err := f.DWARF()
	if err != nil {
		t.Fatal(err)
	}

	// look for main.main
	r := d.Reader()
	for {
		e, err := r.Next()
		if err != nil {
			t.Fatal("r.Next:", err)
		}
		if e == nil {
			break
		}
		if e.Tag == dwarf.TagSubprogram {
			name, ok := e.Val(dwarf.AttrName).(string)
			if ok && name == "main.main" {

# CL 117280043 debug/dwarf: fix Reader panic on DW_TAG_unspecified_type, Derek Parker <******@****.***>
pkg debug/dwarf, method (*UnspecifiedType) Basic() *BasicType
pkg debug/dwarf, method (*UnspecifiedType) Common() *CommonType
pkg debug/dwarf, method (*UnspecifiedType) Size() int64
pkg debug/dwarf, method (*UnspecifiedType) String() string
pkg debug/dwarf, type UnspecifiedType struct

		if err != nil {
			return nil, err
		}
		dat[suffix] = b
	}

	d, err := dwarf.New(dat["abbrev"], nil, nil, dat["info"], dat["line"], nil, dat["ranges"], dat["str"])
	if err != nil {
		return nil, err
	}

	// Look for DWARF4 .debug_types sections and DWARF5 sections.
	for i, s := range f.Sections {
		suffix := dwarfSuffix(s)
		if suffix == "" {
			continue
		}

	"cmp",
	"cmd/asm",
	"cmd/asm/internal/...",
	"cmd/cgo",
	"cmd/compile",
	"cmd/compile/internal/...",
	"cmd/internal/archive",
	"cmd/internal/bio",
	"cmd/internal/codesign",
	"cmd/internal/dwarf",
	"cmd/internal/edit",
	"cmd/internal/gcprog",
	"cmd/internal/goobj",
	"cmd/internal/notsha256",
	"cmd/internal/obj/...",
	"cmd/internal/objabi",
	"cmd/internal/pgo",
	"cmd/internal/pkgpath",