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 19 using namespace llvm::dwarf; 20 21 typedef uint32_t dw_uleb128_t; 22 typedef int32_t dw_sleb128_t; 23 typedef uint16_t dw_attr_t; 24 typedef uint8_t dw_form_t; 25 typedef uint16_t dw_tag_t; 26 typedef 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 30 typedef 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 33 typedef 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
