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// Copyright (c) 2010, 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.
#include <windows.h>
#include <objbase.h>
#include <dbghelp.h>
#include "client/windows/crash_generation/minidump_generator.h"
#include "client/windows/unittests/dump_analysis.h" // NOLINT
#include "gtest/gtest.h"
namespace {
// Minidump with stacks, PEB, TEB, and unloaded module list.
const MINIDUMP_TYPE kSmallDumpType = static_cast<MINIDUMP_TYPE>(
MiniDumpWithProcessThreadData | // Get PEB and TEB.
MiniDumpWithUnloadedModules); // Get unloaded modules when available.
// Minidump with all of the above, plus memory referenced from stack.
const MINIDUMP_TYPE kLargerDumpType = static_cast<MINIDUMP_TYPE>(
MiniDumpWithProcessThreadData | // Get PEB and TEB.
MiniDumpWithUnloadedModules | // Get unloaded modules when available.
MiniDumpWithIndirectlyReferencedMemory); // Get memory referenced by stack.
// Large dump with all process memory.
const MINIDUMP_TYPE kFullDumpType = static_cast<MINIDUMP_TYPE>(
MiniDumpWithFullMemory | // Full memory from process.
MiniDumpWithProcessThreadData | // Get PEB and TEB.
MiniDumpWithHandleData | // Get all handle information.
MiniDumpWithUnloadedModules); // Get unloaded modules when available.
class MinidumpTest: public testing::Test {
public:
MinidumpTest() {
wchar_t temp_dir_path[ MAX_PATH ] = {0};
::GetTempPath(MAX_PATH, temp_dir_path);
dump_path_ = temp_dir_path;
}
virtual void SetUp() {
// Make sure URLMon isn't loaded into our process.
ASSERT_EQ(NULL, ::GetModuleHandle(L"urlmon.dll"));
// Then load and unload it to ensure we have something to
// stock the unloaded module list with.
HMODULE urlmon = ::LoadLibrary(L"urlmon.dll");
ASSERT_TRUE(urlmon != NULL);
ASSERT_TRUE(::FreeLibrary(urlmon));
}
virtual void TearDown() {
if (!dump_file_.empty()) {
::DeleteFile(dump_file_.c_str());
dump_file_ = L"";
}
if (!full_dump_file_.empty()) {
::DeleteFile(full_dump_file_.c_str());
full_dump_file_ = L"";
}
}
bool WriteDump(ULONG flags) {
using google_breakpad::MinidumpGenerator;
// Fake exception is access violation on write to this.
EXCEPTION_RECORD ex_record = {
STATUS_ACCESS_VIOLATION, // ExceptionCode
0, // ExceptionFlags
NULL, // ExceptionRecord;
reinterpret_cast<void*>(0xCAFEBABE), // ExceptionAddress;
2, // NumberParameters;
{ EXCEPTION_WRITE_FAULT, reinterpret_cast<ULONG_PTR>(this) }
};
CONTEXT ctx_record = {};
EXCEPTION_POINTERS ex_ptrs = {
&ex_record,
&ctx_record,
};
MinidumpGenerator generator(dump_path_);
// And write a dump
bool result = generator.WriteMinidump(::GetCurrentProcess(),
::GetCurrentProcessId(),
::GetCurrentThreadId(),
::GetCurrentThreadId(),
&ex_ptrs,
NULL,
static_cast<MINIDUMP_TYPE>(flags),
TRUE,
&dump_file_,
&full_dump_file_);
return result == TRUE;
}
protected:
std::wstring dump_file_;
std::wstring full_dump_file_;
std::wstring dump_path_;
};
// We need to be able to get file information from Windows
bool HasFileInfo(const std::wstring& file_path) {
DWORD dummy;
const wchar_t* path = file_path.c_str();
DWORD length = ::GetFileVersionInfoSize(path, &dummy);
if (length == 0)
return NULL;
void* data = calloc(length, 1);
if (!data)
return false;
if (!::GetFileVersionInfo(path, dummy, length, data)) {
free(data);
return false;
}
void* translate = NULL;
UINT page_count;
BOOL query_result = VerQueryValue(
data,
L"\\VarFileInfo\\Translation",
static_cast<void**>(&translate),
&page_count);
free(data);
if (query_result && translate) {
return true;
} else {
return false;
}
}
TEST_F(MinidumpTest, Version) {
// Loads DbgHelp.dll in process
ImagehlpApiVersion();
HMODULE dbg_help = ::GetModuleHandle(L"dbghelp.dll");
ASSERT_TRUE(dbg_help != NULL);
wchar_t dbg_help_file[1024] = {};
ASSERT_TRUE(::GetModuleFileName(dbg_help,
dbg_help_file,
sizeof(dbg_help_file) /
sizeof(*dbg_help_file)));
ASSERT_TRUE(HasFileInfo(std::wstring(dbg_help_file)) != NULL);
// LOG(INFO) << "DbgHelp.dll version: " << file_info->file_version();
}
TEST_F(MinidumpTest, Normal) {
EXPECT_TRUE(WriteDump(MiniDumpNormal));
DumpAnalysis mini(dump_file_);
// We expect threads, modules and some memory.
EXPECT_TRUE(mini.HasStream(ThreadListStream));
EXPECT_TRUE(mini.HasStream(ModuleListStream));
EXPECT_TRUE(mini.HasStream(MemoryListStream));
EXPECT_TRUE(mini.HasStream(ExceptionStream));
EXPECT_TRUE(mini.HasStream(SystemInfoStream));
EXPECT_TRUE(mini.HasStream(MiscInfoStream));
EXPECT_FALSE(mini.HasStream(ThreadExListStream));
EXPECT_FALSE(mini.HasStream(Memory64ListStream));
EXPECT_FALSE(mini.HasStream(CommentStreamA));
EXPECT_FALSE(mini.HasStream(CommentStreamW));
EXPECT_FALSE(mini.HasStream(HandleDataStream));
EXPECT_FALSE(mini.HasStream(FunctionTableStream));
EXPECT_FALSE(mini.HasStream(UnloadedModuleListStream));
EXPECT_FALSE(mini.HasStream(MemoryInfoListStream));
EXPECT_FALSE(mini.HasStream(ThreadInfoListStream));
EXPECT_FALSE(mini.HasStream(HandleOperationListStream));
EXPECT_FALSE(mini.HasStream(TokenStream));
// We expect no PEB nor TEBs in this dump.
EXPECT_FALSE(mini.HasTebs());
EXPECT_FALSE(mini.HasPeb());
// We expect no off-stack memory in this dump.
EXPECT_FALSE(mini.HasMemory(this));
}
TEST_F(MinidumpTest, SmallDump) {
ASSERT_TRUE(WriteDump(kSmallDumpType));
DumpAnalysis mini(dump_file_);
EXPECT_TRUE(mini.HasStream(ThreadListStream));
EXPECT_TRUE(mini.HasStream(ModuleListStream));
EXPECT_TRUE(mini.HasStream(MemoryListStream));
EXPECT_TRUE(mini.HasStream(ExceptionStream));
EXPECT_TRUE(mini.HasStream(SystemInfoStream));
EXPECT_TRUE(mini.HasStream(UnloadedModuleListStream));
EXPECT_TRUE(mini.HasStream(MiscInfoStream));
// We expect PEB and TEBs in this dump.
EXPECT_TRUE(mini.HasTebs());
EXPECT_TRUE(mini.HasPeb());
EXPECT_FALSE(mini.HasStream(ThreadExListStream));
EXPECT_FALSE(mini.HasStream(Memory64ListStream));
EXPECT_FALSE(mini.HasStream(CommentStreamA));
EXPECT_FALSE(mini.HasStream(CommentStreamW));
EXPECT_FALSE(mini.HasStream(HandleDataStream));
EXPECT_FALSE(mini.HasStream(FunctionTableStream));
EXPECT_FALSE(mini.HasStream(MemoryInfoListStream));
EXPECT_FALSE(mini.HasStream(ThreadInfoListStream));
EXPECT_FALSE(mini.HasStream(HandleOperationListStream));
EXPECT_FALSE(mini.HasStream(TokenStream));
// We expect no off-stack memory in this dump.
EXPECT_FALSE(mini.HasMemory(this));
}
TEST_F(MinidumpTest, LargerDump) {
ASSERT_TRUE(WriteDump(kLargerDumpType));
DumpAnalysis mini(dump_file_);
// The dump should have all of these streams.
EXPECT_TRUE(mini.HasStream(ThreadListStream));
EXPECT_TRUE(mini.HasStream(ModuleListStream));
EXPECT_TRUE(mini.HasStream(MemoryListStream));
EXPECT_TRUE(mini.HasStream(ExceptionStream));
EXPECT_TRUE(mini.HasStream(SystemInfoStream));
EXPECT_TRUE(mini.HasStream(UnloadedModuleListStream));
EXPECT_TRUE(mini.HasStream(MiscInfoStream));
// We expect memory referenced by stack in this dump.
EXPECT_TRUE(mini.HasMemory(this));
// We expect PEB and TEBs in this dump.
EXPECT_TRUE(mini.HasTebs());
EXPECT_TRUE(mini.HasPeb());
EXPECT_FALSE(mini.HasStream(ThreadExListStream));
EXPECT_FALSE(mini.HasStream(Memory64ListStream));
EXPECT_FALSE(mini.HasStream(CommentStreamA));
EXPECT_FALSE(mini.HasStream(CommentStreamW));
EXPECT_FALSE(mini.HasStream(HandleDataStream));
EXPECT_FALSE(mini.HasStream(FunctionTableStream));
EXPECT_FALSE(mini.HasStream(MemoryInfoListStream));
EXPECT_FALSE(mini.HasStream(ThreadInfoListStream));
EXPECT_FALSE(mini.HasStream(HandleOperationListStream));
EXPECT_FALSE(mini.HasStream(TokenStream));
}
TEST_F(MinidumpTest, FullDump) {
ASSERT_TRUE(WriteDump(kFullDumpType));
ASSERT_TRUE(dump_file_ != L"");
ASSERT_TRUE(full_dump_file_ != L"");
DumpAnalysis mini(dump_file_);
DumpAnalysis full(full_dump_file_);
// Either dumps can contain part of the information.
// The dump should have all of these streams.
EXPECT_TRUE(mini.HasStream(ThreadListStream));
EXPECT_TRUE(full.HasStream(ThreadListStream));
EXPECT_TRUE(mini.HasStream(ModuleListStream));
EXPECT_TRUE(full.HasStream(ModuleListStream));
EXPECT_TRUE(mini.HasStream(ExceptionStream));
EXPECT_TRUE(full.HasStream(ExceptionStream));
EXPECT_TRUE(mini.HasStream(SystemInfoStream));
EXPECT_TRUE(full.HasStream(SystemInfoStream));
EXPECT_TRUE(mini.HasStream(UnloadedModuleListStream));
EXPECT_TRUE(full.HasStream(UnloadedModuleListStream));
EXPECT_TRUE(mini.HasStream(MiscInfoStream));
EXPECT_TRUE(full.HasStream(MiscInfoStream));
EXPECT_TRUE(mini.HasStream(HandleDataStream));
EXPECT_TRUE(full.HasStream(HandleDataStream));
// We expect memory referenced by stack in this dump.
EXPECT_FALSE(mini.HasMemory(this));
EXPECT_TRUE(full.HasMemory(this));
// We expect PEB and TEBs in this dump.
EXPECT_TRUE(mini.HasTebs() || full.HasTebs());
EXPECT_TRUE(mini.HasPeb() || full.HasPeb());
EXPECT_TRUE(mini.HasStream(MemoryListStream));
EXPECT_TRUE(full.HasStream(Memory64ListStream));
EXPECT_FALSE(mini.HasStream(Memory64ListStream));
EXPECT_FALSE(full.HasStream(MemoryListStream));
// This is the only place we don't use OR because we want both not
// to have the streams.
EXPECT_FALSE(mini.HasStream(ThreadExListStream));
EXPECT_FALSE(full.HasStream(ThreadExListStream));
EXPECT_FALSE(mini.HasStream(CommentStreamA));
EXPECT_FALSE(full.HasStream(CommentStreamA));
EXPECT_FALSE(mini.HasStream(CommentStreamW));
EXPECT_FALSE(full.HasStream(CommentStreamW));
EXPECT_FALSE(mini.HasStream(FunctionTableStream));
EXPECT_FALSE(full.HasStream(FunctionTableStream));
EXPECT_FALSE(mini.HasStream(MemoryInfoListStream));
EXPECT_FALSE(full.HasStream(MemoryInfoListStream));
EXPECT_FALSE(mini.HasStream(ThreadInfoListStream));
EXPECT_FALSE(full.HasStream(ThreadInfoListStream));
EXPECT_FALSE(mini.HasStream(HandleOperationListStream));
EXPECT_FALSE(full.HasStream(HandleOperationListStream));
EXPECT_FALSE(mini.HasStream(TokenStream));
EXPECT_FALSE(full.HasStream(TokenStream));
}
} // namespace
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