blob: 06215221d96155595e0f3f5b2c50312b07bcd85b (
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
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
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
//===-- ABI.cpp -------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ABI.h"
#include "lldb/Core/PluginManager.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObjectConstResult.h"
#include "lldb/Symbol/ClangASTType.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
using namespace lldb;
using namespace lldb_private;
ABISP
ABI::FindPlugin (const ArchSpec &arch)
{
ABISP abi_sp;
ABICreateInstance create_callback;
for (uint32_t idx = 0;
(create_callback = PluginManager::GetABICreateCallbackAtIndex(idx)) != NULL;
++idx)
{
abi_sp = create_callback(arch);
if (abi_sp)
return abi_sp;
}
abi_sp.reset();
return abi_sp;
}
//----------------------------------------------------------------------
// Constructor
//----------------------------------------------------------------------
ABI::ABI()
{
}
//----------------------------------------------------------------------
// Destructor
//----------------------------------------------------------------------
ABI::~ABI()
{
}
bool
ABI::GetRegisterInfoByName (const ConstString &name, RegisterInfo &info)
{
uint32_t count = 0;
const RegisterInfo *register_info_array = GetRegisterInfoArray (count);
if (register_info_array)
{
const char *unique_name_cstr = name.GetCString();
uint32_t i;
for (i=0; i<count; ++i)
{
if (register_info_array[i].name == unique_name_cstr)
{
info = register_info_array[i];
return true;
}
}
for (i=0; i<count; ++i)
{
if (register_info_array[i].alt_name == unique_name_cstr)
{
info = register_info_array[i];
return true;
}
}
}
return false;
}
bool
ABI::GetRegisterInfoByKind (RegisterKind reg_kind, uint32_t reg_num, RegisterInfo &info)
{
if (reg_kind < eRegisterKindGCC || reg_kind >= kNumRegisterKinds)
return false;
uint32_t count = 0;
const RegisterInfo *register_info_array = GetRegisterInfoArray (count);
if (register_info_array)
{
for (uint32_t i=0; i<count; ++i)
{
if (register_info_array[i].kinds[reg_kind] == reg_num)
{
info = register_info_array[i];
return true;
}
}
}
return false;
}
ValueObjectSP
ABI::GetReturnValueObject (Thread &thread,
ClangASTType &ast_type,
bool persistent) const
{
if (!ast_type.IsValid())
return ValueObjectSP();
ValueObjectSP return_valobj_sp;
return_valobj_sp = GetReturnValueObjectImpl(thread, ast_type);
if (!return_valobj_sp)
return return_valobj_sp;
// Now turn this into a persistent variable.
// FIXME: This code is duplicated from Target::EvaluateExpression, and it is used in similar form in a couple
// of other places. Figure out the correct Create function to do all this work.
if (persistent)
{
ClangPersistentVariables& persistent_variables = thread.CalculateTarget()->GetPersistentVariables();
ConstString persistent_variable_name (persistent_variables.GetNextPersistentVariableName());
lldb::ValueObjectSP const_valobj_sp;
// Check in case our value is already a constant value
if (return_valobj_sp->GetIsConstant())
{
const_valobj_sp = return_valobj_sp;
const_valobj_sp->SetName (persistent_variable_name);
}
else
const_valobj_sp = return_valobj_sp->CreateConstantValue (persistent_variable_name);
lldb::ValueObjectSP live_valobj_sp = return_valobj_sp;
return_valobj_sp = const_valobj_sp;
ClangExpressionVariableSP clang_expr_variable_sp(persistent_variables.CreatePersistentVariable(return_valobj_sp));
assert (clang_expr_variable_sp.get());
// Set flags and live data as appropriate
const Value &result_value = live_valobj_sp->GetValue();
switch (result_value.GetValueType())
{
case Value::eValueTypeHostAddress:
case Value::eValueTypeFileAddress:
// we don't do anything with these for now
break;
case Value::eValueTypeScalar:
case Value::eValueTypeVector:
clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVIsFreezeDried;
clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVIsLLDBAllocated;
clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVNeedsAllocation;
break;
case Value::eValueTypeLoadAddress:
clang_expr_variable_sp->m_live_sp = live_valobj_sp;
clang_expr_variable_sp->m_flags |= ClangExpressionVariable::EVIsProgramReference;
break;
}
return_valobj_sp = clang_expr_variable_sp->GetValueObject();
}
return return_valobj_sp;
}
|
