sym, err := f.file.Symbols()
		if err != nil {
			return nil, err
		}
		f.sym = sym
	}
	var out []*driver.Sym
	for _, s := range f.sym {
		// Ignore a symbol with address 0 and size 0.
		// An ELF STT_FILE symbol will look like that.
		if s.Addr == 0 && s.Size == 0 {
			continue
		}
		if (r == nil || r.MatchString(s.Name)) && (addr == 0 || s.Addr <= addr && addr < s.Addr+uint64(s.Size)) {
			out = append(out, &driver.Sym{

type SymType int

const (
	STT_NOTYPE  SymType = 0  /* Unspecified type. */
	STT_OBJECT  SymType = 1  /* Data object. */
	STT_FUNC    SymType = 2  /* Function. */
	STT_SECTION SymType = 3  /* Section. */
	STT_FILE    SymType = 4  /* Source file. */
	STT_COMMON  SymType = 5  /* Uninitialized common block. */
	STT_TLS     SymType = 6  /* TLS object. */
	STT_LOOS    SymType = 10 /* Reserved range for operating system */

		{"STB_HIOS", Const, 0},
		{"STB_HIPROC", Const, 0},
		{"STB_LOCAL", Const, 0},
		{"STB_LOOS", Const, 0},
		{"STB_LOPROC", Const, 0},
		{"STB_WEAK", Const, 0},
		{"STT_COMMON", Const, 0},
		{"STT_FILE", Const, 0},
		{"STT_FUNC", Const, 0},
		{"STT_HIOS", Const, 0},
		{"STT_HIPROC", Const, 0},
		{"STT_LOOS", Const, 0},
		{"STT_LOPROC", Const, 0},
		{"STT_NOTYPE", Const, 0},
		{"STT_OBJECT", Const, 0},