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
|
//===-- llvm/CodeGen/DwarfWriter.cpp - Dwarf Framework --------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains support for writing dwarf info into asm files.
//
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/DwarfWriter.h"
#include "DwarfDebug.h"
#include "DwarfException.h"
#include "llvm/CodeGen/MachineModuleInfo.h"
using namespace llvm;
static RegisterPass<DwarfWriter>
X("dwarfwriter", "DWARF Information Writer");
char DwarfWriter::ID = 0;
//===----------------------------------------------------------------------===//
/// DwarfWriter Implementation
///
DwarfWriter::DwarfWriter()
: ImmutablePass(&ID), DD(0), DE(0) {}
DwarfWriter::~DwarfWriter() {
delete DE;
delete DD;
}
/// BeginModule - Emit all Dwarf sections that should come prior to the
/// content.
void DwarfWriter::BeginModule(Module *M,
MachineModuleInfo *MMI,
raw_ostream &OS, AsmPrinter *A,
const MCAsmInfo *T) {
DE = new DwarfException(OS, A, T);
DD = new DwarfDebug(OS, A, T);
DE->BeginModule(M, MMI);
DD->BeginModule(M, MMI);
}
/// EndModule - Emit all Dwarf sections that should come after the content.
///
void DwarfWriter::EndModule() {
DE->EndModule();
DD->EndModule();
}
/// BeginFunction - Gather pre-function debug information. Assumes being
/// emitted immediately after the function entry point.
void DwarfWriter::BeginFunction(MachineFunction *MF) {
DE->BeginFunction(MF);
DD->BeginFunction(MF);
}
/// EndFunction - Gather and emit post-function debug information.
///
void DwarfWriter::EndFunction(MachineFunction *MF) {
DD->EndFunction(MF);
DE->EndFunction();
if (MachineModuleInfo *MMI = DD->getMMI() ? DD->getMMI() : DE->getMMI())
// Clear function debug information.
MMI->EndFunction();
}
/// RecordSourceLine - Records location information and associates it with a
/// label. Returns a unique label ID used to generate a label and provide
/// correspondence to the source line list.
unsigned DwarfWriter::RecordSourceLine(unsigned Line, unsigned Col,
DICompileUnit CU) {
return DD->RecordSourceLine(Line, Col, CU);
}
/// RecordRegionStart - Indicate the start of a region.
unsigned DwarfWriter::RecordRegionStart(GlobalVariable *V) {
return DD->RecordRegionStart(V);
}
/// RecordRegionEnd - Indicate the end of a region.
unsigned DwarfWriter::RecordRegionEnd(GlobalVariable *V) {
return DD->RecordRegionEnd(V);
}
/// getRecordSourceLineCount - Count source lines.
unsigned DwarfWriter::getRecordSourceLineCount() {
return DD->getRecordSourceLineCount();
}
/// RecordVariable - Indicate the declaration of a local variable.
///
void DwarfWriter::RecordVariable(GlobalVariable *GV, unsigned FrameIndex) {
DD->RecordVariable(GV, FrameIndex);
}
/// ShouldEmitDwarfDebug - Returns true if Dwarf debugging declarations should
/// be emitted.
bool DwarfWriter::ShouldEmitDwarfDebug() const {
return DD && DD->ShouldEmitDwarfDebug();
}
//// RecordInlinedFnStart - Global variable GV is inlined at the location marked
//// by LabelID label.
unsigned DwarfWriter::RecordInlinedFnStart(DISubprogram SP, DICompileUnit CU,
unsigned Line, unsigned Col) {
return DD->RecordInlinedFnStart(SP, CU, Line, Col);
}
/// RecordInlinedFnEnd - Indicate the end of inlined subroutine.
unsigned DwarfWriter::RecordInlinedFnEnd(DISubprogram SP) {
return DD->RecordInlinedFnEnd(SP);
}
|
