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
|
// Copyright (c) 2006, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// windows_frame_info.h: Holds debugging information about a stack frame.
//
// This structure is specific to Windows debugging information obtained
// from pdb files using the DIA API.
//
// Author: Mark Mentovai
#ifndef PROCESSOR_WINDOWS_FRAME_INFO_H__
#define PROCESSOR_WINDOWS_FRAME_INFO_H__
#include <cstring>
#include <string>
#include <vector>
#include "google_breakpad/common/breakpad_types.h"
#include "processor/logging.h"
#include "processor/tokenize.h"
namespace google_breakpad {
struct WindowsFrameInfo {
public:
enum Validity {
VALID_NONE = 0,
VALID_PARAMETER_SIZE = 1,
VALID_ALL = -1
};
// The types for stack_info_. This is equivalent to MS DIA's
// StackFrameTypeEnum. Each identifies a different type of frame
// information, although all are represented in the symbol file in the
// same format. These are used as indices to the stack_info_ array.
enum StackInfoTypes {
STACK_INFO_FPO = 0,
STACK_INFO_TRAP, // not used here
STACK_INFO_TSS, // not used here
STACK_INFO_STANDARD,
STACK_INFO_FRAME_DATA,
STACK_INFO_LAST, // must be the last sequentially-numbered item
STACK_INFO_UNKNOWN = -1
};
WindowsFrameInfo() : valid(VALID_NONE),
prolog_size(0),
epilog_size(0),
parameter_size(0),
saved_register_size(0),
local_size(0),
max_stack_size(0),
allocates_base_pointer(0),
program_string() {}
WindowsFrameInfo(u_int32_t set_prolog_size,
u_int32_t set_epilog_size,
u_int32_t set_parameter_size,
u_int32_t set_saved_register_size,
u_int32_t set_local_size,
u_int32_t set_max_stack_size,
int set_allocates_base_pointer,
const std::string set_program_string)
: valid(VALID_ALL),
prolog_size(set_prolog_size),
epilog_size(set_epilog_size),
parameter_size(set_parameter_size),
saved_register_size(set_saved_register_size),
local_size(set_local_size),
max_stack_size(set_max_stack_size),
allocates_base_pointer(set_allocates_base_pointer),
program_string(set_program_string) {}
// Parse a textual serialization of a WindowsFrameInfo object from
// a string. Returns NULL if parsing fails, or a new object
// otherwise. type, rva and code_size are present in the STACK line,
// but not the StackFrameInfo structure, so return them as outparams.
static WindowsFrameInfo *ParseFromString(const std::string string,
int &type,
u_int64_t &rva,
u_int64_t &code_size) {
// The format of a STACK WIN record is documented at:
//
// http://code.google.com/p/google-breakpad/wiki/SymbolFiles
std::vector<char> buffer;
StringToVector(string, buffer);
std::vector<char*> tokens;
if (!Tokenize(&buffer[0], " \r\n", 11, &tokens))
return NULL;
type = strtol(tokens[0], NULL, 16);
if (type < 0 || type > STACK_INFO_LAST - 1)
return NULL;
rva = strtoull(tokens[1], NULL, 16);
code_size = strtoull(tokens[2], NULL, 16);
u_int32_t prolog_size = strtoul(tokens[3], NULL, 16);
u_int32_t epilog_size = strtoul(tokens[4], NULL, 16);
u_int32_t parameter_size = strtoul(tokens[5], NULL, 16);
u_int32_t saved_register_size = strtoul(tokens[6], NULL, 16);
u_int32_t local_size = strtoul(tokens[7], NULL, 16);
u_int32_t max_stack_size = strtoul(tokens[8], NULL, 16);
int has_program_string = strtoul(tokens[9], NULL, 16);
const char *program_string = "";
int allocates_base_pointer = 0;
if (has_program_string) {
program_string = tokens[10];
} else {
allocates_base_pointer = strtoul(tokens[10], NULL, 16);
}
return new WindowsFrameInfo(prolog_size,
epilog_size,
parameter_size,
saved_register_size,
local_size,
max_stack_size,
allocates_base_pointer,
program_string);
}
// CopyFrom makes "this" WindowsFrameInfo object identical to "that".
void CopyFrom(const WindowsFrameInfo &that) {
valid = that.valid;
prolog_size = that.prolog_size;
epilog_size = that.epilog_size;
parameter_size = that.parameter_size;
saved_register_size = that.saved_register_size;
local_size = that.local_size;
max_stack_size = that.max_stack_size;
allocates_base_pointer = that.allocates_base_pointer;
program_string = that.program_string;
}
// Clears the WindowsFrameInfo object so that users will see it as though
// it contains no information.
void Clear() {
valid = VALID_NONE;
program_string.erase();
}
// Identifies which fields in the structure are valid. This is of
// type Validity, but it is defined as an int because it's not
// possible to OR values into an enumerated type. Users must check
// this field before using any other.
int valid;
// These values come from IDiaFrameData.
u_int32_t prolog_size;
u_int32_t epilog_size;
u_int32_t parameter_size;
u_int32_t saved_register_size;
u_int32_t local_size;
u_int32_t max_stack_size;
// Only one of allocates_base_pointer or program_string will be valid.
// If program_string is empty, use allocates_base_pointer.
bool allocates_base_pointer;
std::string program_string;
};
} // namespace google_breakpad
#endif // PROCESSOR_WINDOWS_FRAME_INFO_H__
|
