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1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // This module contains the necessary code to register the Breakpad exception | |
6 // handler. This implementation is based on Chrome's crash reporting code. | |
7 | |
8 #include "chrome_elf/breakpad.h" | |
9 | |
10 #include <string> | |
grt (UTC plus 2)
2014/02/14 16:37:33
not needed?
Cait (Slow)
2014/02/14 23:12:04
Done.
| |
11 | |
12 #include "base/macros.h" | |
13 #include "breakpad/src/client/windows/handler/exception_handler.h" | |
14 #include "chrome_elf/chrome_elf_util.h" | |
15 #include "version.h" // NOLINT | |
16 | |
17 google_breakpad::ExceptionHandler* g_elf_breakpad = NULL; | |
18 | |
19 namespace { | |
20 | |
21 const wchar_t kBreakpadProductName[] = L"ChromeElf"; | |
22 const wchar_t kBreakpadVersionEntry[] = L"ver"; | |
23 const wchar_t kBreakpadVersionDefault[] = L"0.1.0.0"; | |
grt (UTC plus 2)
2014/02/14 16:37:33
unused
Cait (Slow)
2014/02/14 23:12:04
Done.
| |
24 const wchar_t kBreakpadProdEntry[] = L"prod"; | |
25 const wchar_t kBreakpadPlatformEntry[] = L"plat"; | |
26 const wchar_t kBreakpadPlatformWin32[] = L"Win32"; | |
27 | |
28 // The protocol for connecting to the out-of-process Breakpad crash | |
29 // reporter is different for x86-32 and x86-64: the message sizes | |
30 // are different because the message struct contains a pointer. As | |
31 // a result, there are two different named pipes to connect to. The | |
32 // 64-bit one is distinguished with an "-x64" suffix. | |
33 const wchar_t kGoogleUpdatePipeName[] = L"\\\\.\\pipe\\GoogleCrashServices\\"; | |
34 const wchar_t kSystemPrincipalSid[] = L"S-1-5-18"; | |
35 | |
36 google_breakpad::CustomClientInfo* GetCustomInfo() { | |
37 static google_breakpad::CustomInfoEntry ver_entry( | |
38 kBreakpadVersionEntry, TEXT(CHROME_VERSION_STRING)); | |
39 static google_breakpad::CustomInfoEntry prod_entry( | |
40 kBreakpadProdEntry, kBreakpadProductName); | |
41 static google_breakpad::CustomInfoEntry plat_entry( | |
42 kBreakpadPlatformEntry, kBreakpadPlatformWin32); | |
43 static google_breakpad::CustomInfoEntry entries[] = { | |
44 ver_entry, prod_entry, plat_entry }; | |
45 static google_breakpad::CustomClientInfo custom_info = { | |
46 entries, arraysize(entries) }; | |
47 return &custom_info; | |
48 } | |
49 | |
50 } // namespace | |
51 | |
52 int GenerateCrashDump(EXCEPTION_POINTERS* exinfo) { | |
53 DWORD code = exinfo->ExceptionRecord->ExceptionCode; | |
54 if (code == EXCEPTION_BREAKPOINT || code == EXCEPTION_SINGLE_STEP) | |
55 return EXCEPTION_CONTINUE_SEARCH; | |
56 | |
57 if (g_elf_breakpad != NULL) | |
58 g_elf_breakpad->WriteMinidumpForException(exinfo); | |
59 return EXCEPTION_CONTINUE_SEARCH; | |
60 } | |
61 | |
62 void InitializeCrashReporting() { | |
63 wchar_t exe_path[MAX_PATH] = {}; | |
64 if(!::GetModuleFileName(NULL, exe_path, arraysize(exe_path))) | |
65 return; | |
66 | |
67 // Do not set up crash reporting if the user has not consented to it. | |
68 if (!AreUsageStatsEnabled(exe_path)) | |
69 return; | |
70 | |
71 // Disable the message box for assertions. | |
72 _CrtSetReportMode(_CRT_ASSERT, 0); | |
73 | |
74 // Get the alternate dump directory. We use the temp path. | |
75 // N.B. We don't use base::GetTempDir() here to avoid running more code then | |
76 // necessary before crashes can be properly reported. | |
77 wchar_t temp_directory[MAX_PATH + 1] = {}; | |
78 DWORD length = GetTempPath(MAX_PATH, temp_directory); | |
79 if (length == 0) | |
80 return; | |
81 | |
82 // Minidump with stacks, PEB, TEBs and unloaded module list. | |
83 MINIDUMP_TYPE dump_type = static_cast<MINIDUMP_TYPE>( | |
84 MiniDumpWithProcessThreadData | // Get PEB and TEB. | |
85 MiniDumpWithUnloadedModules | // Get unloaded modules when available. | |
86 MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by | |
87 // stack. | |
88 | |
89 // Build the pipe name. It can be either: | |
grt (UTC plus 2)
2014/02/14 16:37:33
either -> one of
Cait (Slow)
2014/02/14 23:12:04
Done.
| |
90 // 32-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18 | |
91 // 32-bit user: \\.\pipe\GoogleCrashServices\<user SID> | |
92 // 64-bit system: \\.\pipe\GoogleCrashServices\S-1-5-18-x64 | |
93 // 64-bit user: \\.\pipe\GoogleCrashServices\<user SID>-x64 | |
94 base::string16 user_sid = kSystemPrincipalSid; | |
grt (UTC plus 2)
2014/02/14 16:37:33
shouldn't this connect to the crash_service on the
Cait (Slow)
2014/02/14 23:12:04
Done -- if breakpad is enabled by policy, do we st
| |
95 | |
96 if (!IsSystemInstall(exe_path)) { | |
grt (UTC plus 2)
2014/02/14 16:37:33
if (!A && !B)
return;
Cait (Slow)
2014/02/14 23:12:04
Done.
| |
97 if (!GetUserSidString(&user_sid)) { | |
98 return; | |
99 } | |
100 } | |
101 | |
102 base::string16 pipe_name = kGoogleUpdatePipeName; | |
103 pipe_name += user_sid; | |
104 | |
105 #if defined(_WIN64) | |
106 pipe_name += L"-x64"; | |
107 #endif | |
108 | |
109 g_elf_breakpad = new google_breakpad::ExceptionHandler( | |
110 temp_directory, | |
111 NULL, | |
112 NULL, | |
113 NULL, | |
114 google_breakpad::ExceptionHandler::HANDLER_ALL, | |
115 dump_type, | |
116 pipe_name.c_str(), | |
117 GetCustomInfo()); | |
118 | |
119 if (g_elf_breakpad->IsOutOfProcess()) { | |
120 // Tells breakpad to handle breakpoint and single step exceptions. | |
121 g_elf_breakpad->set_handle_debug_exceptions(true); | |
122 } | |
123 } | |
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