30 24 34 FDE pc=004020..004040
  DW_CFA_def_cfa_offset: 16
  DW_CFA_advance_loc: 6 to 0000000000004026
  DW_CFA_def_cfa_offset: 24
  DW_CFA_advance_loc: 10 to 0000000000004030
  DW_CFA_def_cfa_expression (DW_OP_breg7 (rsp): 8;
    DW_OP_breg16 (rip): 0; ...)