1//===-- dwarf.h -------------------------------------------------*- C++ -*-===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8 9#ifndef DebugBase_dwarf_h_ 10#define DebugBase_dwarf_h_ 11 12#include "lldb/Utility/RangeMap.h" 13#include <stdint.h> 14 15// Get the DWARF constant definitions from llvm 16#include "llvm/BinaryFormat/Dwarf.h" 17 18// and stuff them in our default namespace 19using namespace llvm::dwarf; 20 21typedef uint32_t dw_uleb128_t; 22typedef int32_t dw_sleb128_t; 23typedef uint16_t dw_attr_t; 24typedef uint16_t dw_form_t; 25typedef llvm::dwarf::Tag dw_tag_t; 26typedef uint64_t dw_addr_t; // Dwarf address define that must be big enough for 27 // any addresses in the compile units that get 28 // parsed 29 30typedef uint32_t dw_offset_t; // Dwarf Debug Information Entry offset for any 31 // offset into the file 32 33/* Constants */ 34#define DW_INVALID_OFFSET (~(dw_offset_t)0) 35#define DW_INVALID_INDEX 0xFFFFFFFFul 36 37// #define DW_ADDR_none 0x0 38 39#define DW_EH_PE_MASK_ENCODING 0x0F 40 41//// The following are used only internally within lldb - don't 42//// document them in the llvm Dwarf.h header file, we won't see 43//// them in executable files anywhere. 44//// These constants fit between DW_OP_lo_user (0xe0) and DW_OP_hi_user (0xff). 45// 46//#define DW_OP_APPLE_array_ref 0xEE // first pops index, then pops array; 47//pushes array[index] 48//#define DW_OP_APPLE_extern 0xEF // ULEB128 index of external object 49//(i.e., an entity from the program that was used in the expression) 50#define DW_OP_APPLE_uninit \ 51 0xF0 // This is actually generated by some apple compilers in locations lists 52//#define DW_OP_APPLE_assign 0xF1 // pops value off and assigns it to 53//second item on stack (2nd item must have assignable context) 54//#define DW_OP_APPLE_address_of 0xF2 // gets the address of the top stack 55//item (top item must be a variable, or have value_type that is an address 56//already) 57//#define DW_OP_APPLE_value_of 0xF3 // pops the value off the stack and 58//pushes the value of that object (top item must be a variable, or expression 59//local) 60//#define DW_OP_APPLE_deref_type 0xF4 // gets the address of the top stack 61//item (top item must be a variable, or a clang type) 62//#define DW_OP_APPLE_expr_local 0xF5 // ULEB128 expression local index 63//#define DW_OP_APPLE_constf 0xF6 // 1 byte float size, followed by 64//constant float data 65//#define DW_OP_APPLE_scalar_cast 0xF7 // Cast top of stack to 2nd in stack's 66//type leaving all items in place 67//#define DW_OP_APPLE_clang_cast 0xF8 // pointer size clang::Type * off the 68//stack and cast top stack item to this type 69//#define DW_OP_APPLE_clear 0xFE // clears the entire expression stack, 70//ok if the stack is empty 71//#define DW_OP_APPLE_error 0xFF // Stops expression evaluation and 72//returns an error (no args) 73 74typedef lldb_private::RangeArray<dw_addr_t, dw_addr_t, 2> DWARFRangeList; 75 76#endif // DebugBase_dwarf_h_ 77