1 //===-- DWARFFormValue.h ----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_DEBUGINFO_DWARFFORMVALUE_H
11 #define LLVM_DEBUGINFO_DWARFFORMVALUE_H
13 #include "llvm/Support/DataExtractor.h"
20 class DWARFFormValue {
23 ValueType() : data(NULL), IsDWOIndex(false) {
37 eValueTypeInvalid = 0,
45 uint16_t Form; // Form for this value.
46 ValueType Value; // Contains all data for the form.
49 DWARFFormValue(uint16_t form = 0) : Form(form) {}
50 uint16_t getForm() const { return Form; }
51 const ValueType& value() const { return Value; }
52 void dump(raw_ostream &OS, const DWARFUnit *U) const;
53 bool extractValue(DataExtractor data, uint32_t *offset_ptr,
55 bool isInlinedCStr() const {
56 return Value.data != NULL && Value.data == (const uint8_t*)Value.cstr;
58 const uint8_t *BlockData() const;
59 uint64_t getReference(const DWARFUnit *U) const;
61 uint64_t getUnsigned() const { return Value.uval; }
62 int64_t getSigned() const { return Value.sval; }
63 const char *getAsCString(const DWARFUnit *U) const;
64 uint64_t getAsAddress(const DWARFUnit *U) const;
65 bool skipValue(DataExtractor debug_info_data, uint32_t *offset_ptr,
66 const DWARFUnit *u) const;
67 static bool skipValue(uint16_t form, DataExtractor debug_info_data,
68 uint32_t *offset_ptr, const DWARFUnit *u);
69 static bool isBlockForm(uint16_t form);
70 static bool isDataForm(uint16_t form);
71 static const uint8_t *getFixedFormSizes(uint8_t AddrSize, uint16_t Version);