win: Write memory map info as MINIDUMP_MEMORY_INFO[_LIST]

minidump/minidump_memory_info_writer_test.cc

+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include "minidump/minidump_memory_info_writer.h"
+
+#include <string>
+
+#include "gtest/gtest.h"
+#include "minidump/minidump_file_writer.h"
+#include "minidump/test/minidump_file_writer_test_util.h"
+#include "minidump/test/minidump_writable_test_util.h"
+#include "snapshot/test/test_memory_map_region_snapshot.h"
+#include "util/file/string_file.h"
+
+namespace crashpad {
+namespace test {
+namespace {
+
+const MinidumpStreamType kBogusStreamType =

[Mark Mentovai, 2015/10/12 14:34:47]

This never comes into play, you can get rid of everything related to it
including the expected_streams argument.

[scottmg, 2015/10/13 19:51:29]

Done.

+    static_cast<MinidumpStreamType>(1234);
+
+// expected_streams is the expected number of streams in the file. The memory
+// info list must be the last stream. If there is another stream, it must come
+// first, have stream type kBogusStreamType, and have zero-length data.
+void GetMemoryInfoListStream(const std::string& file_contents,
+                             const MINIDUMP_MEMORY_INFO_LIST** memory_info_list,
+                             const uint32_t expected_streams) {
+  const size_t kDirectoryOffset = sizeof(MINIDUMP_HEADER);
+  const size_t kMemoryInfoListStreamOffset =
+      kDirectoryOffset + expected_streams * sizeof(MINIDUMP_DIRECTORY);
+
+  const MINIDUMP_DIRECTORY* directory;
+  const MINIDUMP_HEADER* header =
+      MinidumpHeaderAtStart(file_contents, &directory);
+  ASSERT_NO_FATAL_FAILURE(VerifyMinidumpHeader(header, expected_streams, 0));
+  ASSERT_TRUE(directory);
+
+  size_t directory_index = 0;
+  if (expected_streams > 1) {
+    ASSERT_EQ(kBogusStreamType, directory[directory_index].StreamType);
+    ASSERT_EQ(0u, directory[directory_index].Location.DataSize);
+    ASSERT_EQ(kMemoryInfoListStreamOffset,
+              directory[directory_index].Location.Rva);
+    ++directory_index;
+  }
+
+  ASSERT_EQ(kMinidumpStreamTypeMemoryInfoList,
+            directory[directory_index].StreamType);
+  EXPECT_EQ(kMemoryInfoListStreamOffset,
+            directory[directory_index].Location.Rva);
+
+  *memory_info_list =
+      MinidumpWritableAtLocationDescriptor<MINIDUMP_MEMORY_INFO_LIST>(
+          file_contents, directory[directory_index].Location);
+  ASSERT_TRUE(memory_info_list);
+}
+
+TEST(MinidumpMemoryInfoWriter, Empty) {
+  MinidumpFileWriter minidump_file_writer;
+  auto memory_info_list_writer =
+      make_scoped_ptr(new MinidumpMemoryInfoListWriter());
+  minidump_file_writer.AddStream(memory_info_list_writer.Pass());
+
+  StringFile string_file;
+  ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
+
+  ASSERT_EQ(sizeof(MINIDUMP_HEADER) + sizeof(MINIDUMP_DIRECTORY) +
+                sizeof(MINIDUMP_MEMORY_INFO_LIST),
+            string_file.string().size());
+
+  const MINIDUMP_MEMORY_INFO_LIST* memory_info_list = nullptr;
+  ASSERT_NO_FATAL_FAILURE(
+      GetMemoryInfoListStream(string_file.string(), &memory_info_list, 1));
+
+  EXPECT_EQ(0u, memory_info_list->NumberOfEntries);
+}
+
+TEST(MinidumpMemoryInfoWriter, OneRegion) {
+  MinidumpFileWriter minidump_file_writer;
+  auto memory_info_list_writer =
+      make_scoped_ptr(new MinidumpMemoryInfoListWriter());
+
+  auto memory_map_region = make_scoped_ptr(new TestMemoryMapRegionSnapshot());
+
+  MINIDUMP_MEMORY_INFO mmi = {0};
+  mmi.BaseAddress = 0x12340000;
+  mmi.AllocationBase = 0x12000000;
+  mmi.AllocationProtect = PAGE_READWRITE;
+  mmi.RegionSize = 0x6000;
+  mmi.State = MEM_COMMIT;
+  mmi.Protect = PAGE_NOACCESS;
+  mmi.Type = MEM_PRIVATE;
+  memory_map_region->SetMindumpMemoryInfo(mmi);
+
+  std::vector<const MemoryMapRegionSnapshot*> memory_map;
+  memory_map.push_back(memory_map_region.get());
+  memory_info_list_writer->InitializeFromSnapshot(memory_map);
+
+  minidump_file_writer.AddStream(memory_info_list_writer.Pass());
+
+  StringFile string_file;
+  ASSERT_TRUE(minidump_file_writer.WriteEverything(&string_file));
+
+  ASSERT_EQ(sizeof(MINIDUMP_HEADER) + sizeof(MINIDUMP_DIRECTORY) +
+                sizeof(MINIDUMP_MEMORY_INFO_LIST) +
+                sizeof(MINIDUMP_MEMORY_INFO),
+            string_file.string().size());
+
+  const MINIDUMP_MEMORY_INFO_LIST* memory_info_list = nullptr;
+  ASSERT_NO_FATAL_FAILURE(
+      GetMemoryInfoListStream(string_file.string(), &memory_info_list, 1));
+
+  EXPECT_EQ(1u, memory_info_list->NumberOfEntries);
+  const MINIDUMP_MEMORY_INFO* memory_info =
+      reinterpret_cast<const MINIDUMP_MEMORY_INFO*>(&memory_info_list[1]);
+  EXPECT_EQ(mmi.BaseAddress, memory_info->BaseAddress);
+  EXPECT_EQ(mmi.AllocationBase, memory_info->AllocationBase);
+  EXPECT_EQ(mmi.AllocationProtect, memory_info->AllocationProtect);
+  EXPECT_EQ(mmi.RegionSize, memory_info->RegionSize);
+  EXPECT_EQ(mmi.State, memory_info->State);
+  EXPECT_EQ(mmi.Protect, memory_info->Protect);
+  EXPECT_EQ(mmi.Type, memory_info->Type);
+}
+
+}  // namespace
+}  // namespace test
+}  // namespace crashpad