1//===-- dwarf.h -------------------------------------------------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#ifndef DebugBase_dwarf_h_ 11#define DebugBase_dwarf_h_ 12 13#include <stdint.h> 14#include <stdbool.h> 15 16// Get the DWARF constant defintions from llvm 17#include "llvm/Support/Dwarf.h" 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 uint8_t dw_form_t; 25typedef uint16_t dw_tag_t; 26typedef uint64_t dw_addr_t; // Dwarf address define that must be big enough for any addresses in the compile units that get parsed 27 28#ifdef DWARFUTILS_DWARF64 29#define DWARF_REF_ADDR_SIZE 8 30typedef uint64_t dw_offset_t; // Dwarf Debug Information Entry offset for any offset into the file 31#else 32#define DWARF_REF_ADDR_SIZE 4 33typedef uint32_t dw_offset_t; // Dwarf Debug Information Entry offset for any offset into the file 34#endif 35 36/* Constants */ 37#define DW_INVALID_OFFSET (~(dw_offset_t)0) 38#define DW_INVALID_INDEX 0xFFFFFFFFul 39 40// #define DW_ADDR_none 0x0 41 42#define DW_EH_PE_MASK_ENCODING 0x0F 43 44//// The following are used only internally within lldb - don't 45//// document them in the llvm Dwarf.h header file, we won't see 46//// them in executable files anywhere. 47//// These constants fit between DW_OP_lo_user (0xe0) and DW_OP_hi_user (0xff). 48// 49//#define DW_OP_APPLE_array_ref 0xEE // first pops index, then pops array; pushes array[index] 50//#define DW_OP_APPLE_extern 0xEF // ULEB128 index of external object (i.e., an entity from the program that was used in the expression) 51#define DW_OP_APPLE_uninit 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 second item on stack (2nd item must have assignable context) 53//#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) 54//#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) 55//#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) 56//#define DW_OP_APPLE_expr_local 0xF5 // ULEB128 expression local index 57//#define DW_OP_APPLE_constf 0xF6 // 1 byte float size, followed by constant float data 58//#define DW_OP_APPLE_scalar_cast 0xF7 // Cast top of stack to 2nd in stack's type leaving all items in place 59//#define DW_OP_APPLE_clang_cast 0xF8 // pointer size clang::Type * off the stack and cast top stack item to this type 60//#define DW_OP_APPLE_clear 0xFE // clears the entire expression stack, ok if the stack is empty 61//#define DW_OP_APPLE_error 0xFF // Stops expression evaluation and returns an error (no args) 62 63 64#endif // DebugBase_dwarf_h_ 65