text: //===-- dwarf.h -------------------------------------------------*- C++ -*-===//
  //
  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
  // See https://llvm.org/LICENSE.txt for license information.
  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLDB_CORE_DWARF_H
  #define LLDB_CORE_DWARF_H
  
  #include "lldb/Utility/RangeMap.h"
  #include <stdint.h>
  
  // Get the DWARF constant definitions from llvm
  #include "llvm/BinaryFormat/Dwarf.h"
  
  // and stuff them in our default namespace
  using namespace llvm::dwarf;
  
  typedef uint32_t dw_uleb128_t;
  typedef int32_t dw_sleb128_t;
  typedef uint16_t dw_attr_t;
  typedef uint16_t dw_form_t;
  typedef llvm::dwarf::Tag dw_tag_t;
  typedef uint64_t dw_addr_t; // Dwarf address define that must be big enough for
                              // any addresses in the compile units that get
                              // parsed
  
  typedef uint32_t dw_offset_t; // Dwarf Debug Information Entry offset for any
                                // offset into the file
  
  /* Constants */
  #define DW_INVALID_OFFSET (~(dw_offset_t)0)
  #define DW_INVALID_INDEX 0xFFFFFFFFul
  
  // #define DW_ADDR_none 0x0
  
  #define DW_EH_PE_MASK_ENCODING 0x0F
  
  //// The following are used only internally within lldb - don't
  //// document them in the llvm Dwarf.h header file, we won't see
  //// them in executable files anywhere.
  //// These constants fit between DW_OP_lo_user (0xe0) and DW_OP_hi_user (0xff).
  //
  //#define DW_OP_APPLE_array_ref     0xEE // first pops index, then pops array;
  //pushes array[index]
  //#define DW_OP_APPLE_extern        0xEF // ULEB128 index of external object
  //(i.e., an entity from the program that was used in the expression)
  #define DW_OP_APPLE_uninit                                                     \
    0xF0 // This is actually generated by some apple compilers in locations lists
  //#define DW_OP_APPLE_assign        0xF1 // pops value off and assigns it to
  //second item on stack (2nd item must have assignable context)
  //#define DW_OP_APPLE_address_of    0xF2 // gets the address of the top stack
  //item (top item must be a variable, or have value_type that is an address
  //already)
  //#define DW_OP_APPLE_value_of      0xF3 // pops the value off the stack and
  //pushes the value of that object (top item must be a variable, or expression
  //local)
  //#define DW_OP_APPLE_deref_type    0xF4 // gets the address of the top stack
  //item (top item must be a variable, or a clang type)
  //#define DW_OP_APPLE_expr_local    0xF5 // ULEB128 expression local index
  //#define DW_OP_APPLE_constf        0xF6 // 1 byte float size, followed by
  //constant float data
  //#define DW_OP_APPLE_scalar_cast   0xF7 // Cast top of stack to 2nd in stack's
  //type leaving all items in place
  //#define DW_OP_APPLE_clang_cast    0xF8 // pointer size clang::Type * off the
  //stack and cast top stack item to this type
  //#define DW_OP_APPLE_clear         0xFE // clears the entire expression stack,
  //ok if the stack is empty
  //#define DW_OP_APPLE_error         0xFF // Stops expression evaluation and
  //returns an error (no args)
  
  typedef lldb_private::RangeVector<dw_addr_t, dw_addr_t, 2> DWARFRangeList;
  
  #endif // LLDB_CORE_DWARF_H
  