1 //===- SymbolRecordHelpers.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 LLVM_DEBUGINFO_CODEVIEW_SYMBOLRECORDHELPERS_H
11 #define LLVM_DEBUGINFO_CODEVIEW_SYMBOLRECORDHELPERS_H
12 
13 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
14 
15 namespace llvm {
16 namespace codeview {
17 /// Return true if this symbol opens a scope. This implies that the symbol has
18 /// "parent" and "end" fields, which contain the offset of the S_END or
19 /// S_INLINESITE_END record.
symbolOpensScope(SymbolKind Kind)20 inline bool symbolOpensScope(SymbolKind Kind) {
21   switch (Kind) {
22   case SymbolKind::S_GPROC32:
23   case SymbolKind::S_LPROC32:
24   case SymbolKind::S_LPROC32_ID:
25   case SymbolKind::S_GPROC32_ID:
26   case SymbolKind::S_BLOCK32:
27   case SymbolKind::S_SEPCODE:
28   case SymbolKind::S_THUNK32:
29   case SymbolKind::S_INLINESITE:
30   case SymbolKind::S_INLINESITE2:
31     return true;
32   default:
33     break;
34   }
35   return false;
36 }
37 
38 /// Return true if this ssymbol ends a scope.
symbolEndsScope(SymbolKind Kind)39 inline bool symbolEndsScope(SymbolKind Kind) {
40   switch (Kind) {
41   case SymbolKind::S_END:
42   case SymbolKind::S_PROC_ID_END:
43   case SymbolKind::S_INLINESITE_END:
44     return true;
45   default:
46     break;
47   }
48   return false;
49 }
50 
51 /// Given a symbol P for which symbolOpensScope(P) == true, return the
52 /// corresponding end offset.
53 uint32_t getScopeEndOffset(const CVSymbol &Symbol);
54 uint32_t getScopeParentOffset(const CVSymbol &Symbol);
55 
56 CVSymbolArray limitSymbolArrayToScope(const CVSymbolArray &Symbols,
57                                       uint32_t ScopeBegin);
58 
59 } // namespace codeview
60 } // namespace llvm
61 
62 #endif
63