blob: 5fe0cc4d416e1d18dff4e3efe303319bc73c281a (
plain) (
blame)
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
|
//===-- DIERef.cpp ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "DIERef.h"
#include "DWARFCompileUnit.h"
#include "DWARFFormValue.h"
#include "DWARFDebugInfo.h"
#include "SymbolFileDWARF.h"
#include "SymbolFileDWARFDebugMap.h"
DIERef::DIERef() :
cu_offset(DW_INVALID_OFFSET),
die_offset(DW_INVALID_OFFSET)
{}
DIERef::DIERef(dw_offset_t c, dw_offset_t d) :
cu_offset(c),
die_offset(d)
{}
DIERef::DIERef(lldb::user_id_t uid, SymbolFileDWARF *dwarf) :
cu_offset(DW_INVALID_OFFSET),
die_offset(uid&0xffffffff)
{
SymbolFileDWARFDebugMap *debug_map = dwarf->GetDebugMapSymfile();
if (debug_map)
{
const uint32_t oso_idx = debug_map->GetOSOIndexFromUserID(uid);
SymbolFileDWARF *actual_dwarf = debug_map->GetSymbolFileByOSOIndex(oso_idx);
if (actual_dwarf)
{
DWARFDebugInfo *debug_info = actual_dwarf->DebugInfo();
if (debug_info)
{
DWARFCompileUnit *dwarf_cu = debug_info->GetCompileUnitContainingDIEOffset(die_offset);
if (dwarf_cu)
{
cu_offset = dwarf_cu->GetOffset();
return;
}
}
}
die_offset = DW_INVALID_OFFSET;
}
else
{
cu_offset = uid>>32;
}
}
DIERef::DIERef(const DWARFFormValue& form_value) :
cu_offset(DW_INVALID_OFFSET),
die_offset(DW_INVALID_OFFSET)
{
if (form_value.IsValid())
{
const DWARFCompileUnit* dwarf_cu = form_value.GetCompileUnit();
if (dwarf_cu)
{
if (dwarf_cu->GetBaseObjOffset() != DW_INVALID_OFFSET)
cu_offset = dwarf_cu->GetBaseObjOffset();
else
cu_offset = dwarf_cu->GetOffset();
}
die_offset = form_value.Reference();
}
}
lldb::user_id_t
DIERef::GetUID(SymbolFileDWARF *dwarf) const
{
//----------------------------------------------------------------------
// Each SymbolFileDWARF will set its ID to what is expected.
//
// SymbolFileDWARF, when used for DWARF with .o files on MacOSX, has the
// ID set to the compile unit index.
//
// SymbolFileDWARFDwo sets the ID to the compile unit offset.
//----------------------------------------------------------------------
if (dwarf)
return dwarf->GetID() | die_offset;
else
return LLDB_INVALID_UID;
}
|
