LLVM  14.0.0git
MCSymbolCOFF.h
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1 //===- MCSymbolCOFF.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_MC_MCSYMBOLCOFF_H
10 #define LLVM_MC_MCSYMBOLCOFF_H
11 
12 #include "llvm/MC/MCSymbol.h"
13 #include <cstdint>
14 
15 namespace llvm {
16 
17 class MCSymbolCOFF : public MCSymbol {
18  /// This corresponds to the e_type field of the COFF symbol.
19  mutable uint16_t Type = 0;
20 
21  enum SymbolFlags : uint16_t {
22  SF_ClassMask = 0x00FF,
23  SF_ClassShift = 0,
24 
25  SF_WeakExternal = 0x0100,
26  SF_SafeSEH = 0x0200,
27  };
28 
29 public:
32 
33  uint16_t getType() const {
34  return Type;
35  }
36  void setType(uint16_t Ty) const {
37  Type = Ty;
38  }
39 
40  uint16_t getClass() const {
41  return (getFlags() & SF_ClassMask) >> SF_ClassShift;
42  }
44  modifyFlags(StorageClass << SF_ClassShift, SF_ClassMask);
45  }
46 
47  bool isWeakExternal() const {
48  return getFlags() & SF_WeakExternal;
49  }
50  void setIsWeakExternal() const {
51  modifyFlags(SF_WeakExternal, SF_WeakExternal);
52  }
53 
54  bool isSafeSEH() const {
55  return getFlags() & SF_SafeSEH;
56  }
57  void setIsSafeSEH() const {
58  modifyFlags(SF_SafeSEH, SF_SafeSEH);
59  }
60 
61  static bool classof(const MCSymbol *S) { return S->isCOFF(); }
62 };
63 
64 } // end namespace llvm
65 
66 #endif // LLVM_MC_MCSYMBOLCOFF_H
llvm
---------------------— PointerInfo ------------------------------------—
Definition: AllocatorList.h:23
llvm::MCSymbol
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
llvm::StringMapEntry
StringMapEntry - This is used to represent one value that is inserted into a StringMap.
Definition: StringMapEntry.h:98
llvm::MCSymbolCOFF::isWeakExternal
bool isWeakExternal() const
Definition: MCSymbolCOFF.h:47
llvm::MCSymbol::isTemporary
bool isTemporary() const
isTemporary - Check if this is an assembler temporary symbol.
Definition: MCSymbol.h:215
llvm::MCSymbolCOFF::getClass
uint16_t getClass() const
Definition: MCSymbolCOFF.h:40
llvm::Type
The instances of the Type class are immutable: once they are created, they are never changed.
Definition: Type.h:45
llvm::MCSymbolCOFF::setIsSafeSEH
void setIsSafeSEH() const
Definition: MCSymbolCOFF.h:57
llvm::MCSymbol::SymbolKindCOFF
@ SymbolKindCOFF
Definition: MCSymbol.h:47
MCSymbol.h
llvm::MCSymbolCOFF::setClass
void setClass(uint16_t StorageClass) const
Definition: MCSymbolCOFF.h:43
llvm::MCSymbolCOFF
Definition: MCSymbolCOFF.h:17
llvm::MCSymbolCOFF::setType
void setType(uint16_t Ty) const
Definition: MCSymbolCOFF.h:36
llvm::XCOFF::StorageClass
StorageClass
Definition: XCOFF.h:110
llvm::MCSymbolCOFF::isSafeSEH
bool isSafeSEH() const
Definition: MCSymbolCOFF.h:54
llvm::MCSymbol::modifyFlags
void modifyFlags(uint32_t Value, uint32_t Mask) const
Modify the flags via a mask.
Definition: MCSymbol.h:424
llvm::MCSymbol::getFlags
uint32_t getFlags() const
Get the (implementation defined) symbol flags.
Definition: MCSymbol.h:415
S
add sub stmia L5 ldr r0 bl L_printf $stub Instead of a and a wouldn t it be better to do three moves *Return an aggregate type is even return S
Definition: README.txt:210
llvm::MCSymbolCOFF::getType
uint16_t getType() const
Definition: MCSymbolCOFF.h:33
llvm::GraphProgram::Name
Name
Definition: GraphWriter.h:52
uint16_t
llvm::MCSymbolCOFF::MCSymbolCOFF
MCSymbolCOFF(const StringMapEntry< bool > *Name, bool isTemporary)
Definition: MCSymbolCOFF.h:30
llvm::MCSymbolCOFF::classof
static bool classof(const MCSymbol *S)
Definition: MCSymbolCOFF.h:61
llvm::MCSymbolCOFF::setIsWeakExternal
void setIsWeakExternal() const
Definition: MCSymbolCOFF.h:50