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 LLDB_CORE_DWARF_H 10 #define LLDB_CORE_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 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 uint16_t dw_form_t; 25 typedef llvm::dwarf::Tag dw_tag_t; 26 typedef 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 30 typedef 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 74 typedef lldb_private::RangeVector<dw_addr_t, dw_addr_t, 2> DWARFRangeList; 75 76 #endif // LLDB_CORE_DWARF_H 77