1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
//==-- llvm/CodeGen/TargetLoweringObjectFileImpl.h - Object Info -*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements classes used to handle lowerings specific to common
// object file formats.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_TARGETLOWERINGOBJECTFILEIMPL_H
#define LLVM_CODEGEN_TARGETLOWERINGOBJECTFILEIMPL_H
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Target/TargetLoweringObjectFile.h"
namespace llvm {
class MachineModuleInfo;
class Mangler;
class MCAsmInfo;
class MCExpr;
class MCSection;
class MCSectionMachO;
class MCSymbol;
class MCContext;
class GlobalValue;
class TargetMachine;
class TargetLoweringObjectFileELF : public TargetLoweringObjectFile {
bool UseInitArray;
public:
virtual ~TargetLoweringObjectFileELF() {}
void emitPersonalityValue(MCStreamer &Streamer, const TargetMachine &TM,
const MCSymbol *Sym) const override;
/// Given a constant with the SectionKind, return a section that it should be
/// placed in.
const MCSection *getSectionForConstant(SectionKind Kind,
const Constant *C) const override;
const MCSection *getExplicitSectionGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
const MCSection *SelectSectionForGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
/// Return an MCExpr to use for a reference to the specified type info global
/// variable from exception handling information.
const MCExpr *
getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding,
Mangler &Mang, const TargetMachine &TM,
MachineModuleInfo *MMI,
MCStreamer &Streamer) const override;
// The symbol that gets passed to .cfi_personality.
MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
const TargetMachine &TM,
MachineModuleInfo *MMI) const override;
void InitializeELF(bool UseInitArray_);
const MCSection *getStaticCtorSection(unsigned Priority,
const MCSymbol *KeySym) const override;
const MCSection *getStaticDtorSection(unsigned Priority,
const MCSymbol *KeySym) const override;
};
class TargetLoweringObjectFileMachO : public TargetLoweringObjectFile {
public:
virtual ~TargetLoweringObjectFileMachO() {}
/// Extract the dependent library name from a linker option string. Returns
/// StringRef() if the option does not specify a library.
StringRef getDepLibFromLinkerOpt(StringRef LinkerOption) const override;
/// Emit the module flags that specify the garbage collection information.
void emitModuleFlags(MCStreamer &Streamer,
ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
Mangler &Mang, const TargetMachine &TM) const override;
bool isSectionAtomizableBySymbols(const MCSection &Section) const override;
const MCSection *
SelectSectionForGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
const MCSection *
getExplicitSectionGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
const MCSection *getSectionForConstant(SectionKind Kind,
const Constant *C) const override;
/// The mach-o version of this method defaults to returning a stub reference.
const MCExpr *
getTTypeGlobalReference(const GlobalValue *GV, unsigned Encoding,
Mangler &Mang, const TargetMachine &TM,
MachineModuleInfo *MMI,
MCStreamer &Streamer) const override;
// The symbol that gets passed to .cfi_personality.
MCSymbol *getCFIPersonalitySymbol(const GlobalValue *GV, Mangler &Mang,
const TargetMachine &TM,
MachineModuleInfo *MMI) const override;
};
class TargetLoweringObjectFileCOFF : public TargetLoweringObjectFile {
public:
virtual ~TargetLoweringObjectFileCOFF() {}
const MCSection *
getExplicitSectionGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
const MCSection *
SelectSectionForGlobal(const GlobalValue *GV,
SectionKind Kind, Mangler &Mang,
const TargetMachine &TM) const override;
/// Extract the dependent library name from a linker option string. Returns
/// StringRef() if the option does not specify a library.
StringRef getDepLibFromLinkerOpt(StringRef LinkerOption) const override;
/// Emit Obj-C garbage collection and linker options. Only linker option
/// emission is implemented for COFF.
void emitModuleFlags(MCStreamer &Streamer,
ArrayRef<Module::ModuleFlagEntry> ModuleFlags,
Mangler &Mang, const TargetMachine &TM) const override;
const MCSection *getStaticCtorSection(unsigned Priority,
const MCSymbol *KeySym) const override;
const MCSection *getStaticDtorSection(unsigned Priority,
const MCSymbol *KeySym) const override;
};
} // end namespace llvm
#endif
|
