1 //===- TypeRecordHelpers.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 LLVM_DEBUGINFO_CODEVIEW_TYPERECORDHELPERS_H 10 #define LLVM_DEBUGINFO_CODEVIEW_TYPERECORDHELPERS_H 11 12 #include "llvm/DebugInfo/CodeView/CVRecord.h" 13 #include "llvm/DebugInfo/CodeView/TypeIndex.h" 14 15 namespace llvm { 16 namespace codeview { 17 18 /// Given an arbitrary codeview type, determine if it is an LF_STRUCTURE, 19 /// LF_CLASS, LF_INTERFACE, LF_UNION, or LF_ENUM with the forward ref class 20 /// option. 21 bool isUdtForwardRef(CVType CVT); 22 23 /// Given a CVType which is assumed to be an LF_MODIFIER, return the 24 /// TypeIndex of the type that the LF_MODIFIER modifies. 25 TypeIndex getModifiedType(const CVType &CVT); 26 27 /// Return true if this record should be in the IPI stream of a PDB. In an 28 /// object file, these record kinds will appear mixed into the .debug$T section. 29 inline bool isIdRecord(TypeLeafKind K) { 30 switch (K) { 31 case TypeLeafKind::LF_FUNC_ID: 32 case TypeLeafKind::LF_MFUNC_ID: 33 case TypeLeafKind::LF_STRING_ID: 34 case TypeLeafKind::LF_SUBSTR_LIST: 35 case TypeLeafKind::LF_BUILDINFO: 36 case TypeLeafKind::LF_UDT_SRC_LINE: 37 case TypeLeafKind::LF_UDT_MOD_SRC_LINE: 38 return true; 39 default: 40 return false; 41 } 42 } 43 44 /// Given an arbitrary codeview type, determine if it is an LF_STRUCTURE, 45 /// LF_CLASS, LF_INTERFACE, LF_UNION. 46 inline bool isAggregate(CVType CVT) { 47 switch (CVT.kind()) { 48 case LF_STRUCTURE: 49 case LF_CLASS: 50 case LF_INTERFACE: 51 case LF_UNION: 52 return true; 53 default: 54 return false; 55 } 56 } 57 58 /// Given an arbitrary codeview type index, determine its size. 59 uint64_t getSizeInBytesForTypeIndex(TypeIndex TI); 60 61 /// Given an arbitrary codeview type, return the type's size in the case 62 /// of aggregate (LF_STRUCTURE, LF_CLASS, LF_INTERFACE, LF_UNION). 63 uint64_t getSizeInBytesForTypeRecord(CVType CVT); 64 65 } // namespace codeview 66 } // namespace llvm 67 68 #endif 69