blob: 735d3e8cdc19db4592232bb0d56ded58c38bd422 [file] [log] [blame]
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/crash/content/app/hard_error_handler_win.h"
#include <DelayIMP.h>
#include <stddef.h>
#include <winternl.h>
#include "base/strings/string_util.h"
#include "components/crash/content/app/crash_reporter_client.h"
namespace breakpad {
using crash_reporter::GetCrashReporterClient;
namespace {
const DWORD kExceptionModuleNotFound = VcppException(ERROR_SEVERITY_ERROR,
ERROR_MOD_NOT_FOUND);
const DWORD kExceptionEntryPtNotFound = VcppException(ERROR_SEVERITY_ERROR,
ERROR_PROC_NOT_FOUND);
// This is defined in <ntstatus.h> but we can't include this file here.
const DWORD FACILITY_GRAPHICS_KERNEL = 0x1E;
const DWORD NT_STATUS_ENTRYPOINT_NOT_FOUND = 0xC0000139;
const DWORD NT_STATUS_DLL_NOT_FOUND = 0xC0000135;
// We assume that exception codes are NT_STATUS codes.
DWORD FacilityFromException(DWORD exception_code) {
return (exception_code >> 16) & 0x0FFF;
}
// This is not a generic function. It only works with some |nt_status| values.
// Check the strings here http://msdn.microsoft.com/en-us/library/cc704588.aspx
// before attempting to use this function.
void RaiseHardErrorMsg(DWORD nt_status,
const std::string& p1,
const std::string& p2) {
// If headless just exit silently.
if (GetCrashReporterClient()->IsRunningUnattended())
return;
HMODULE ntdll = ::GetModuleHandleA("NTDLL.DLL");
wchar_t* msg_template = NULL;
size_t count = ::FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_HMODULE,
ntdll,
nt_status,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
reinterpret_cast<wchar_t*>(&msg_template),
0,
NULL);
if (!count)
return;
count += p1.size() + p2.size() + 1;
base::string16 message;
::wsprintf(base::WriteInto(&message, count), msg_template,
p1.c_str(), p2.c_str());
// The MB_SERVICE_NOTIFICATION causes this message to be displayed by
// csrss. This means that we are not creating windows or pumping WM messages
// in this process.
::MessageBox(NULL, message.c_str(),
L"chrome.exe",
MB_OK | MB_SERVICE_NOTIFICATION);
::LocalFree(msg_template);
}
void ModuleNotFoundHardError(const EXCEPTION_RECORD* ex_record) {
DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>(
ex_record->ExceptionInformation[0]);
if (!dli->szDll)
return;
RaiseHardErrorMsg(NT_STATUS_DLL_NOT_FOUND, dli->szDll, std::string());
}
void EntryPointNotFoundHardError(const EXCEPTION_RECORD* ex_record) {
DelayLoadInfo* dli = reinterpret_cast<DelayLoadInfo*>(
ex_record->ExceptionInformation[0]);
if (!dli->dlp.fImportByName)
return;
if (!dli->dlp.szProcName)
return;
if (!dli->szDll)
return;
RaiseHardErrorMsg(NT_STATUS_ENTRYPOINT_NOT_FOUND,
dli->dlp.szProcName, dli->szDll);
}
} // namespace
bool HardErrorHandler(EXCEPTION_POINTERS* ex_info) {
if (!ex_info)
return false;
if (!ex_info->ExceptionRecord)
return false;
DWORD exception = ex_info->ExceptionRecord->ExceptionCode;
if (exception == kExceptionModuleNotFound) {
ModuleNotFoundHardError(ex_info->ExceptionRecord);
return true;
} else if (exception == kExceptionEntryPtNotFound) {
EntryPointNotFoundHardError(ex_info->ExceptionRecord);
return true;
} else if (FacilityFromException(exception) == FACILITY_GRAPHICS_KERNEL) {
RaiseHardErrorMsg(exception, std::string(), std::string());
return true;
}
return false;
}
} // namespace breakpad