// and retained over unversioned libraries. This avoids the situation where
// the use of cgo results in a DT_NEEDED for a versioned library (for example,
// libc.so.96.1), while a dynamic import specifies an unversioned library (for
// example, libc.so) - this would otherwise result in two DT_NEEDED entries
// for the same library, resulting in a failure when ld.so attempts to load
// the Go binary.

	return f.DynString(DT_NEEDED)
}

// DynString returns the strings listed for the given tag in the file's dynamic
// section.
//
// The tag must be one that takes string values: [DT_NEEDED], [DT_SONAME], [DT_RPATH], or
// [DT_RUNPATH].
func (f *File) DynString(tag DynTag) ([]string, error) {
	switch tag {
	case DT_NEEDED, DT_SONAME, DT_RPATH, DT_RUNPATH:
	default:

	}
	return dynstrings
}

func AssertIsLinkedToRegexp(t *testing.T, path string, re *regexp.Regexp) {
	t.Helper()
	for _, dynstring := range dynStrings(t, path, elf.DT_NEEDED) {
		if re.MatchString(dynstring) {
			return
		}
	}
	t.Errorf("%s is not linked to anything matching %v", path, re)
}

func AssertIsLinkedTo(t *testing.T, path, lib string) {
	t.Helper()

func (i ProgFlag) GoString() string { return flagName(uint32(i), pfStrings, true) }

// Dyn.Tag
type DynTag int

const (
	DT_NULL         DynTag = 0  /* Terminating entry. */
	DT_NEEDED       DynTag = 1  /* String table offset of a needed shared library. */
	DT_PLTRELSZ     DynTag = 2  /* Total size in bytes of PLT relocations. */
	DT_PLTGOT       DynTag = 3  /* Processor-dependent address. */

		dil := ldr.SymDynimplib(s)

		if !cgoeDynamic && dil != "" && !seenlib[dil] {
			du := ldr.MakeSymbolUpdater(syms.Dynamic)
			Elfwritedynent(target.Arch, du, elf.DT_NEEDED, uint64(dstru.Addstring(dil)))
			seenlib[dil] = true
		}
	} else {

		/* value */
		if st == sym.SDYNIMPORT {
			d.AddUint32(target.Arch, 0)
		} else {
			d.AddAddrPlus(target.Arch, s, 0)

		}
		tl := tt.needed
		fl, err := f.ImportedLibraries()
		if err != nil {
			t.Error(err)
		}
		if !reflect.DeepEqual(tl, fl) {
			t.Errorf("open %s: DT_NEEDED = %v, want %v", tt.file, tl, fl)
		}
		symbols, err := f.Symbols()
		if tt.symbols == nil {
			if !errors.Is(err, ErrNoSymbols) {
				t.Errorf("open %s: Symbols() expected ErrNoSymbols, have nil", tt.file)
			}

			continue
		}

		if !cVars[n.C] {
			if *gccgo {
				fmt.Fprintf(fc, "extern byte *%s;\n", n.C)
			} else {
				// Force a reference to all symbols so that
				// the external linker will add DT_NEEDED
				// entries as needed on ELF systems.
				// Treat function variables differently
				// to avoid type conflict errors from LTO
				// (Link Time Optimization).
				if n.Kind == "fpvar" {

		{"DT_MIPS_SYMTABNO", Const, 16},
		{"DT_MIPS_TIME_STAMP", Const, 16},
		{"DT_MIPS_UNREFEXTNO", Const, 16},
		{"DT_MOVEENT", Const, 16},
		{"DT_MOVESZ", Const, 16},
		{"DT_MOVETAB", Const, 16},
		{"DT_NEEDED", Const, 0},
		{"DT_NULL", Const, 0},
		{"DT_PLTGOT", Const, 0},
		{"DT_PLTPAD", Const, 16},
		{"DT_PLTPADSZ", Const, 16},
		{"DT_PLTREL", Const, 0},
		{"DT_PLTRELSZ", Const, 0},

pkg debug/elf, const DT_INIT_ARRAYSZ DynTag
pkg debug/elf, const DT_JMPREL DynTag
pkg debug/elf, const DT_LOOS DynTag
pkg debug/elf, const DT_LOPROC DynTag
pkg debug/elf, const DT_NEEDED DynTag
pkg debug/elf, const DT_NULL DynTag
pkg debug/elf, const DT_PLTGOT DynTag
pkg debug/elf, const DT_PLTREL DynTag
pkg debug/elf, const DT_PLTRELSZ DynTag
pkg debug/elf, const DT_PREINIT_ARRAY DynTag

pkg debug/elf, const DT_INIT_ARRAYSZ = 27
pkg debug/elf, const DT_JMPREL = 23
pkg debug/elf, const DT_LOOS = 1610612749
pkg debug/elf, const DT_LOPROC = 1879048192
pkg debug/elf, const DT_NEEDED = 1
pkg debug/elf, const DT_NULL = 0
pkg debug/elf, const DT_PLTGOT = 3
pkg debug/elf, const DT_PLTREL = 20
pkg debug/elf, const DT_PLTRELSZ = 2
pkg debug/elf, const DT_PREINIT_ARRAY = 32