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
|
// 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.
// simple_symbol_supplier.cc: A simple SymbolSupplier implementation
//
// See simple_symbol_supplier.h for documentation.
//
// Author: Mark Mentovai
#include <sys/types.h>
#include <sys/stat.h>
#include <algorithm>
#include <cassert>
#include <iostream>
#include <fstream>
#include "processor/simple_symbol_supplier.h"
#include "google_breakpad/processor/code_module.h"
#include "google_breakpad/processor/system_info.h"
#include "processor/logging.h"
#include "processor/pathname_stripper.h"
namespace google_breakpad {
static bool file_exists(const string &file_name) {
struct stat sb;
return stat(file_name.c_str(), &sb) == 0;
}
SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFile(
const CodeModule *module, const SystemInfo *system_info,
string *symbol_file) {
BPLOG_IF(ERROR, !symbol_file) << "SimpleSymbolSupplier::GetSymbolFile "
"requires |symbol_file|";
assert(symbol_file);
symbol_file->clear();
for (unsigned int path_index = 0; path_index < paths_.size(); ++path_index) {
SymbolResult result;
if ((result = GetSymbolFileAtPathFromRoot(module, system_info,
paths_[path_index],
symbol_file)) != NOT_FOUND) {
return result;
}
}
return NOT_FOUND;
}
SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFile(
const CodeModule *module,
const SystemInfo *system_info,
string *symbol_file,
string *symbol_data) {
assert(symbol_data);
symbol_data->clear();
SymbolSupplier::SymbolResult s = GetSymbolFile(module, system_info, symbol_file);
if (s == FOUND) {
std::ifstream in(symbol_file->c_str());
std::getline(in, *symbol_data, std::string::traits_type::to_char_type(
std::string::traits_type::eof()));
in.close();
}
return s;
}
SymbolSupplier::SymbolResult SimpleSymbolSupplier::GetSymbolFileAtPathFromRoot(
const CodeModule *module, const SystemInfo *system_info,
const string &root_path, string *symbol_file) {
BPLOG_IF(ERROR, !symbol_file) << "SimpleSymbolSupplier::GetSymbolFileAtPath "
"requires |symbol_file|";
assert(symbol_file);
symbol_file->clear();
if (!module)
return NOT_FOUND;
// Start with the base path.
string path = root_path;
// Append the debug (pdb) file name as a directory name.
path.append("/");
string debug_file_name = PathnameStripper::File(module->debug_file());
if (debug_file_name.empty()) {
BPLOG(ERROR) << "Can't construct symbol file path without debug_file "
"(code_file = " <<
PathnameStripper::File(module->code_file()) << ")";
return NOT_FOUND;
}
path.append(debug_file_name);
// Append the identifier as a directory name.
path.append("/");
string identifier = module->debug_identifier();
if (identifier.empty()) {
BPLOG(ERROR) << "Can't construct symbol file path without debug_identifier "
"(code_file = " <<
PathnameStripper::File(module->code_file()) <<
", debug_file = " << debug_file_name << ")";
return NOT_FOUND;
}
path.append(identifier);
// Transform the debug file name into one ending in .sym. If the existing
// name ends in .pdb, strip the .pdb. Otherwise, add .sym to the non-.pdb
// name.
path.append("/");
string debug_file_extension;
if (debug_file_name.size() > 4)
debug_file_extension = debug_file_name.substr(debug_file_name.size() - 4);
std::transform(debug_file_extension.begin(), debug_file_extension.end(),
debug_file_extension.begin(), tolower);
if (debug_file_extension == ".pdb") {
path.append(debug_file_name.substr(0, debug_file_name.size() - 4));
} else {
path.append(debug_file_name);
}
path.append(".sym");
if (!file_exists(path)) {
BPLOG(INFO) << "No symbol file at " << path;
return NOT_FOUND;
}
*symbol_file = path;
return FOUND;
}
} // namespace google_breakpad
|
