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| 1 // Copyright 2013 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 #include "components/crash/app/hard_error_handler_win.h" |
| 6 |
| 7 #include <DelayIMP.h> |
| 8 #include <winternl.h> |
| 9 |
| 10 #include "base/basictypes.h" |
| 11 #include "base/strings/string_util.h" |
| 12 #include "components/crash/app/crash_reporter_client.h" |
| 13 |
| 14 namespace breakpad { |
| 15 |
| 16 using crash_reporter::GetCrashReporterClient; |
| 17 |
| 18 namespace { |
| 19 const DWORD kExceptionModuleNotFound = VcppException(ERROR_SEVERITY_ERROR, |
| 20 ERROR_MOD_NOT_FOUND); |
| 21 const DWORD kExceptionEntryPtNotFound = VcppException(ERROR_SEVERITY_ERROR, |
| 22 ERROR_PROC_NOT_FOUND); |
| 23 // This is defined in <ntstatus.h> but we can't include this file here. |
| 24 const DWORD FACILITY_GRAPHICS_KERNEL = 0x1E; |
| 25 const DWORD NT_STATUS_ENTRYPOINT_NOT_FOUND = 0xC0000139; |
| 26 const DWORD NT_STATUS_DLL_NOT_FOUND = 0xC0000135; |
| 27 |
| 28 // We assume that exception codes are NT_STATUS codes. |
| 29 DWORD FacilityFromException(DWORD exception_code) { |
| 30 return (exception_code >> 16) & 0x0FFF; |
| 31 } |
| 32 |
| 33 // This is not a generic function. It only works with some |nt_status| values. |
| 34 // Check the strings here http://msdn.microsoft.com/en-us/library/cc704588.aspx |
| 35 // before attempting to use this function. |
| 36 void RaiseHardErrorMsg(long nt_status, const std::string& p1, |
| 37 const std::string& p2) { |
| 38 // If headless just exit silently. |
| 39 if (GetCrashReporterClient()->IsRunningUnattended()) |
| 40 return; |
| 41 |
| 42 HMODULE ntdll = ::GetModuleHandleA("NTDLL.DLL"); |
| 43 wchar_t* msg_template = NULL; |
| 44 size_t count = ::FormatMessage( |
| 45 FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | |
| 46 FORMAT_MESSAGE_FROM_HMODULE, |
| 47 ntdll, |
| 48 nt_status, |
| 49 MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), |
| 50 reinterpret_cast<wchar_t*>(&msg_template), |
| 51 0, |
| 52 NULL); |
| 53 |
| 54 if (!count) |
| 55 return; |
| 56 count += p1.size() + p2.size() + 1; |
| 57 base::string16 message; |
| 58 ::wsprintf(base::WriteInto(&message, count), msg_template, |
| 59 p1.c_str(), p2.c_str()); |
| 60 // The MB_SERVICE_NOTIFICATION causes this message to be displayed by |
| 61 // csrss. This means that we are not creating windows or pumping WM messages |
| 62 // in this process. |
| 63 ::MessageBox(NULL, message.c_str(), |
| 64 L"chrome.exe", |
| 65 MB_OK | MB_SERVICE_NOTIFICATION); |
| 66 ::LocalFree(msg_template); |
| 67 } |
| 68 |
| 69 void ModuleNotFoundHardError(const EXCEPTION_RECORD* ex_record) { |
| 70 DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>( |
| 71 ex_record->ExceptionInformation[0]); |
| 72 if (!dli->szDll) |
| 73 return; |
| 74 RaiseHardErrorMsg(NT_STATUS_DLL_NOT_FOUND, dli->szDll, std::string()); |
| 75 } |
| 76 |
| 77 void EntryPointNotFoundHardError(const EXCEPTION_RECORD* ex_record) { |
| 78 DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>( |
| 79 ex_record->ExceptionInformation[0]); |
| 80 if (!dli->dlp.fImportByName) |
| 81 return; |
| 82 if (!dli->dlp.szProcName) |
| 83 return; |
| 84 if (!dli->szDll) |
| 85 return; |
| 86 RaiseHardErrorMsg(NT_STATUS_ENTRYPOINT_NOT_FOUND, |
| 87 dli->dlp.szProcName, dli->szDll); |
| 88 } |
| 89 |
| 90 } // namespace |
| 91 |
| 92 bool HardErrorHandler(EXCEPTION_POINTERS* ex_info) { |
| 93 if (!ex_info) |
| 94 return false; |
| 95 if (!ex_info->ExceptionRecord) |
| 96 return false; |
| 97 |
| 98 long exception = ex_info->ExceptionRecord->ExceptionCode; |
| 99 if (exception == kExceptionModuleNotFound) { |
| 100 ModuleNotFoundHardError(ex_info->ExceptionRecord); |
| 101 return true; |
| 102 } else if (exception == kExceptionEntryPtNotFound) { |
| 103 EntryPointNotFoundHardError(ex_info->ExceptionRecord); |
| 104 return true; |
| 105 } else if (FacilityFromException(exception) == FACILITY_GRAPHICS_KERNEL) { |
| 106 RaiseHardErrorMsg(exception, std::string(), std::string()); |
| 107 return true; |
| 108 } |
| 109 return false; |
| 110 } |
| 111 |
| 112 } // namespace breakpad |
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