The Tor Browser: comparison toolkit/crashreporter/google-breakpad/src/client/windows/unittests/dump

--1:000000000000
+:65ee2f51c5a4
+// 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/unittests/dump_analysis.h"  // NOLINT
+#include "testing/gtest/include/gtest/gtest.h"
+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;
+}

The Tor Browser / file comparison

comparison: toolkit/crashreporter/google-breakpad/src/client/windows/unittests/dump_analysis.cc

toolkit/crashreporter/google-breakpad/src/client/windows/unittests/dump_analysis.cc