diff options
Diffstat (limited to 'toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.cc')
| -rw-r--r-- | toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.cc | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.cc b/toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.cc new file mode 100644 index 0000000000..53d4ddbde9 --- /dev/null +++ b/toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.cc @@ -0,0 +1,184 @@ +// 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 "breakpad_googletest_includes.h" +#include "client/windows/unittests/dump_analysis.h" // NOLINT + +DumpAnalysis::~DumpAnalysis() { + if (dump_file_view_ != NULL) { + EXPECT_TRUE(::UnmapViewOfFile(dump_file_view_)); + ::CloseHandle(dump_file_mapping_); + dump_file_mapping_ = NULL; + } + + if (dump_file_handle_ != NULL) { + ::CloseHandle(dump_file_handle_); + dump_file_handle_ = NULL; + } +} + +void DumpAnalysis::EnsureDumpMapped() { + if (dump_file_view_ == NULL) { + dump_file_handle_ = ::CreateFile(dump_file_.c_str(), + GENERIC_READ, + 0, + NULL, + OPEN_EXISTING, + 0, + NULL); + ASSERT_TRUE(dump_file_handle_ != NULL); + ASSERT_TRUE(dump_file_mapping_ == NULL); + + dump_file_mapping_ = ::CreateFileMapping(dump_file_handle_, + NULL, + PAGE_READONLY, + 0, + 0, + NULL); + ASSERT_TRUE(dump_file_mapping_ != NULL); + + dump_file_view_ = ::MapViewOfFile(dump_file_mapping_, + FILE_MAP_READ, + 0, + 0, + 0); + ASSERT_TRUE(dump_file_view_ != NULL); + } +} + +bool DumpAnalysis::HasTebs() const { + MINIDUMP_THREAD_LIST* thread_list = NULL; + size_t thread_list_size = GetStream(ThreadListStream, &thread_list); + + if (thread_list_size > 0 && thread_list != NULL) { + for (ULONG i = 0; i < thread_list->NumberOfThreads; ++i) { + if (!HasMemory(thread_list->Threads[i].Teb)) + return false; + } + + return true; + } + + // No thread list, no TEB info. + return false; +} + +bool DumpAnalysis::HasPeb() const { + MINIDUMP_THREAD_LIST* thread_list = NULL; + size_t thread_list_size = GetStream(ThreadListStream, &thread_list); + + if (thread_list_size > 0 && thread_list != NULL && + thread_list->NumberOfThreads > 0) { + FakeTEB* teb = NULL; + if (!HasMemory(thread_list->Threads[0].Teb, &teb)) + return false; + + return HasMemory(teb->peb); + } + + return false; +} + +bool DumpAnalysis::HasStream(ULONG stream_number) const { + void* stream = NULL; + size_t stream_size = GetStreamImpl(stream_number, &stream); + return stream_size > 0 && stream != NULL; +} + +size_t DumpAnalysis::GetStreamImpl(ULONG stream_number, void** stream) const { + MINIDUMP_DIRECTORY* directory = NULL; + ULONG memory_list_size = 0; + BOOL ret = ::MiniDumpReadDumpStream(dump_file_view_, + stream_number, + &directory, + stream, + &memory_list_size); + + return ret ? memory_list_size : 0; +} + +bool DumpAnalysis::HasMemoryImpl(const void *addr_in, size_t structuresize, + void **structure) const { + uintptr_t address = reinterpret_cast<uintptr_t>(addr_in); + MINIDUMP_MEMORY_LIST* memory_list = NULL; + size_t memory_list_size = GetStream(MemoryListStream, &memory_list); + if (memory_list_size > 0 && memory_list != NULL) { + for (ULONG i = 0; i < memory_list->NumberOfMemoryRanges; ++i) { + MINIDUMP_MEMORY_DESCRIPTOR& descr = memory_list->MemoryRanges[i]; + const uintptr_t range_start = + static_cast<uintptr_t>(descr.StartOfMemoryRange); + uintptr_t range_end = range_start + descr.Memory.DataSize; + + if (address >= range_start && + address + structuresize < range_end) { + // The start address falls in the range, and the end address is + // in bounds, return a pointer to the structure if requested. + if (structure != NULL) + *structure = RVA_TO_ADDR(dump_file_view_, descr.Memory.Rva); + + return true; + } + } + } + + // We didn't find the range in a MINIDUMP_MEMORY_LIST, so maybe this + // is a full dump using MINIDUMP_MEMORY64_LIST with all the memory at the + // end of the dump file. + MINIDUMP_MEMORY64_LIST* memory64_list = NULL; + memory_list_size = GetStream(Memory64ListStream, &memory64_list); + if (memory_list_size > 0 && memory64_list != NULL) { + // Keep track of where the current descriptor maps to. + RVA64 curr_rva = memory64_list->BaseRva; + for (ULONG i = 0; i < memory64_list->NumberOfMemoryRanges; ++i) { + MINIDUMP_MEMORY_DESCRIPTOR64& descr = memory64_list->MemoryRanges[i]; + uintptr_t range_start = + static_cast<uintptr_t>(descr.StartOfMemoryRange); + uintptr_t range_end = range_start + static_cast<size_t>(descr.DataSize); + + if (address >= range_start && + address + structuresize < range_end) { + // The start address falls in the range, and the end address is + // in bounds, return a pointer to the structure if requested. + if (structure != NULL) + *structure = RVA_TO_ADDR(dump_file_view_, curr_rva); + + return true; + } + + // Advance the current RVA. + curr_rva += descr.DataSize; + } + } + + return false; +} |