win: Gather memory information

util/win/process_info_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,
@@ skipping 83 matching lines @@
             reinterpret_cast<uintptr_t>(GetModuleHandle(L"ntdll.dll")));
 
   EXPECT_GT(modules[0].size, 0);
   EXPECT_GT(modules[1].size, 0);
 
   EXPECT_EQ(modules[0].timestamp,
             GetTimestampForModule(GetModuleHandle(nullptr)));
   // System modules are forced to particular stamps and the file header values
   // don't match the on-disk times. Just make sure we got some data here.
   EXPECT_GT(modules[1].timestamp, 0);
+
+  // Find something we know is a code address and confirm expected memory
+  // information settings.
+  const std::vector<ProcessInfo::MemoryInfo>& memory_info =
+      process_info.MemoryInformation();
+  WinVMAddress code_address = reinterpret_cast<WinVMAddress>(_ReturnAddress());
+  bool found_region = false;
+  for (const auto& mi : memory_info) {
+    if (mi.base_address <= code_address &&
+        mi.base_address + mi.region_size > code_address) {
+      EXPECT_EQ(MEM_COMMIT, mi.state);
+      EXPECT_EQ(PAGE_EXECUTE_READ, mi.protect);
+      EXPECT_EQ(MEM_IMAGE, mi.type);
+      found_region = true;
+      break;

[Mark Mentovai, 2015/09/26 02:02:14]

Don’t break. Walk the whole list, and before you set found_region = true, do
EXPECT_FALSE(found_region). That assures that we didn’t goof and put a duplicate
entry into the list.

[scottmg, 2015/09/26 03:12:36]

Done.

+    }
+  }
+  EXPECT_TRUE(found_region);
 }
 
 void TestOtherProcess(const base::string16& directory_modification) {
   ProcessInfo process_info;
 
   UUID started_uuid(UUID::InitializeWithNewTag{});
   UUID done_uuid(UUID::InitializeWithNewTag{});
 
   ScopedKernelHANDLE started(
       CreateEvent(nullptr, true, false, started_uuid.ToString16().c_str()));
@@ skipping 57 matching lines @@
   TestOtherProcess(FILE_PATH_LITERAL("..\\..\\out\\Debug"));
 #else
   TestOtherProcess(FILE_PATH_LITERAL("..\\..\\out\\Release"));
 #endif
 }
 #endif  // ARCH_CPU_64_BITS
 
 }  // namespace
 }  // namespace test
 }  // namespace crashpad