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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
|
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
/*
* outfile-writer.c
*
* Copyright (C) 2005 Novell, Inc.
*
*/
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*/
#include "UnityPrefix.h"
#include "MonoHeapShotWriter.h"
#if ENABLE_MONO_HEAPSHOT
#include "Runtime/Serialize/SwapEndianBytes.h"
#include "Runtime/Scripting/ScriptingUtility.h"
#include "Runtime/Allocator/LinearAllocator.h"
#include "Runtime/Mono/MonoBehaviour.h"
#define MAGIC_NUMBER 0x4eabfdd1
#define FILE_FORMAT_VERSION 6
#define FILE_LABEL "heap-shot logfile"
#define TAG_TYPE 0x01
#define TAG_OBJECT 0x02
#define TAG_UNITY 0x03
#define TAG_EOS 0xff
extern "C"
{
// extern char* mono_type_full_name (MonoType *type);
void mono_free (void* p)
{
g_free(p);
}
}
MonoHeapShotWriter::MonoHeapShotWriter()
{
m_Data = NULL;
m_SeenItems = new ClassHash();
}
MonoHeapShotWriter::~MonoHeapShotWriter()
{
delete m_SeenItems;
}
void MonoHeapShotWriter::Start(HeapShotData* data)
{
m_Data = data;
m_Data->clear();
m_SeenItems->clear();
WriteUInt32 (MAGIC_NUMBER);
WriteInt32 (FILE_FORMAT_VERSION);
WriteString (FILE_LABEL);
m_SavedOutfileOffset = m_Data->size();
// we update these after dumping all objects
WriteInt32 (0); // total # of types
WriteInt32 (0); // total # of objects
WriteInt32 (0); // total # of references
WriteInt32 (0); // total # of fields
}
void MonoHeapShotWriter::End()
{
// Write out the end-of-stream tag.
WriteByte (TAG_EOS);
memcpy(&(*m_Data)[m_SavedOutfileOffset], &m_TypeCount, sizeof(SInt32));
memcpy(&(*m_Data)[m_SavedOutfileOffset + sizeof(SInt32)], &m_ObjecCount, sizeof(SInt32));
memcpy(&(*m_Data)[m_SavedOutfileOffset + sizeof(SInt32) * 2], &m_ReferenceCount, sizeof(SInt32));
memcpy(&(*m_Data)[m_SavedOutfileOffset + sizeof(SInt32) * 3], &m_FieldCount, sizeof(SInt32));
}
void MonoHeapShotWriter::BeginObjectDump(MonoObject* obj, MonoClass* klass)
{
char *name;
/* First, add this type if we haven't seen it before. */
//if (g_hash_table_lookup (m_SeenItems, klass) == NULL)
if (m_SeenItems->find(klass) == m_SeenItems->end())
{
MonoClassField *field;
MonoClass *cur_klass = klass;
void* iter;
name = mono_type_full_name (mono_class_get_type (klass));
WriteByte (TAG_TYPE);
WritePointer (klass);
WriteString (name);
mono_free (name);
(*m_SeenItems)[klass] = klass;
//g_hash_table_insert (m_SeenItems, klass, klass);
++m_TypeCount;
// Write every field
do
{
iter = NULL;
while ((field = mono_class_get_fields (cur_klass, &iter)) != NULL) {
WritePointer (field);
WriteString (mono_field_get_name (field));
m_FieldCount++;
}
cur_klass = mono_class_get_parent (cur_klass);
}
while (cur_klass);
WritePointer (NULL);
}
WriteByte (TAG_OBJECT);
if (obj)
{
WritePointer ((void*)obj); // id of the object
WritePointer (klass); // class
WriteInt32 ((SInt32)mono_object_get_size (obj));
}
else
{
// Used to register references from static class members
WritePointer ((void*)klass);
WritePointer (klass);
WriteInt32 ((SInt32)0);
}
m_ObjecCount++;
}
void MonoHeapShotWriter::EndObjectDump()
{
WritePointer (NULL); // no more references
}
void MonoHeapShotWriter::DumpReference(void* ref, void* field)
{
WritePointer (ref);
WritePointer (field);
m_ReferenceCount++;
}
void MonoHeapShotWriter::DumpObjectsReferencedByUnity()
{
FindMode mode = Scripting::kFindAssets;
MonoClass* compareKlass = GetMonoManager().GetBuiltinMonoClass ("Object", false);
if (compareKlass == NULL)
{
ErrorString ("DumpObjectsReferencedByUnity: Invalid Type");
return ;
}
int classID = GetClassIDFromScriptingClass (compareKlass);
if (classID == -1)
{
string klassName = mono_class_get_name (compareKlass);
ErrorString ("DumpObjectsReferencedByUnity: The type has to be derived from UnityEngine.Object. Type is " + klassName + ".");
return ;
}
// Gather the derived objects
std::vector<SInt32> objects;
Object::FindAllDerivedObjects (classID, &objects);
sort(objects.begin(), objects.end());
// We might need to ignore some objects which are not derived from the mono class but from MonoBehaviour
// so we store them in a buffer and then copy them into the mono array
MonoObject** monoObjects;
ALLOC_TEMP(monoObjects, MonoObject*, objects.size(), kMemProfiler);
int count = 0;
for (int i=0;i<objects.size ();i++)
{
Object& object = *PPtr<Object> (objects[i]);
if (object.TestHideFlag (Object::kDontSave) && mode != Scripting::kFindAnything)
continue;
MonoObject* mono = ScriptingWrapperFor (&object);
if (mono)
{
if (object.IsDerivedFrom (ClassID (MonoBehaviour)))
{
MonoClass* klass = mono_object_get_class (mono);
if (mono_class_is_subclass_of (klass, compareKlass, true))
monoObjects[count++] = mono;
}
else
monoObjects[count++] = mono;
}
}
WriteByte (TAG_UNITY);
for (int i = 0; i < count; i++)
{
WritePointer ((void*)monoObjects[i]);
}
WritePointer(0);
}
void MonoHeapShotWriter::WriteByte (UInt8 x)
{
m_Data->push_back (x);
}
void MonoHeapShotWriter::WritePointer (void* x)
{
UInt32 y = (UInt32) (x);
WriteUInt32 (y);
}
void MonoHeapShotWriter::WriteInt32 (SInt32 x)
{
SwapEndianBytesLittleToNative(x);
int o = m_Data->size();
m_Data->resize(o + sizeof(UInt32));
memcpy(&(*m_Data)[o], &x, sizeof(SInt32));
}
void MonoHeapShotWriter::WriteUInt32 (UInt32 x)
{
SwapEndianBytesLittleToNative(x);
int o = m_Data->size();
m_Data->resize(o + sizeof(UInt32));
memcpy(&(*m_Data)[o], &x, sizeof(UInt32));
}
void MonoHeapShotWriter::WriteVInt (UInt32 x)
{
UInt8 y;
do
{
y = (UInt8) (x & 0x7f);
x = x >> 7;
if (x != 0) y |= 0x80;
WriteByte (y);
}
while (x != 0);
}
void MonoHeapShotWriter::WriteString (const char *str)
{
int len = strlen (str);
WriteVInt ((UInt32) len);
if (len > 0)
{
int o = m_Data->size();
m_Data->resize(o + len);
memcpy(&(*m_Data)[o], str, len);
}
}
#endif
|
