Index: base/trace_event/memory_profiler_allocation_register_win.cc |
diff --git a/base/trace_event/memory_profiler_allocation_register_win.cc b/base/trace_event/memory_profiler_allocation_register_win.cc |
deleted file mode 100644 |
index b94c75e35e2511cae9d2907d435203ae0c857007..0000000000000000000000000000000000000000 |
--- a/base/trace_event/memory_profiler_allocation_register_win.cc |
+++ /dev/null |
@@ -1,62 +0,0 @@ |
-// Copyright 2015 The Chromium Authors. All rights reserved. |
-// Use of this source code is governed by a BSD-style license that can be |
-// found in the LICENSE file. |
- |
-#include "base/trace_event/memory_profiler_allocation_register.h" |
- |
-#include <windows.h> |
- |
-#include "base/bits.h" |
-#include "base/logging.h" |
-#include "base/process/process_metrics.h" |
- |
-namespace base { |
-namespace trace_event { |
- |
-namespace { |
-size_t GetGuardSize() { |
- return GetPageSize(); |
-} |
-} |
- |
-// static |
-void* AllocationRegister::AllocateVirtualMemory(size_t size) { |
- size = bits::Align(size, GetPageSize()); |
- |
- // Add space for a guard page at the end. |
- size_t map_size = size + GetGuardSize(); |
- |
- // Reserve the address space. This does not make the memory usable yet. |
- void* addr = VirtualAlloc(nullptr, map_size, MEM_RESERVE, PAGE_NOACCESS); |
- |
- PCHECK(addr != nullptr); |
- |
- // Commit the non-guard pages as read-write memory. |
- void* result = VirtualAlloc(addr, size, MEM_COMMIT, PAGE_READWRITE); |
- |
- PCHECK(result != nullptr); |
- |
- // Mark the last page of the allocated address space as guard page. (NB: The |
- // |PAGE_GUARD| flag is not the flag to use here, that flag can be used to |
- // detect and intercept access to a certain memory region. Accessing a |
- // |PAGE_NOACCESS| page will raise a general protection fault.) The |
- // read/write accessible space is still at least |min_size| bytes. |
- void* guard_addr = |
- reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(addr) + size); |
- result = VirtualAlloc(guard_addr, GetGuardSize(), MEM_COMMIT, PAGE_NOACCESS); |
- PCHECK(result != nullptr); |
- |
- return addr; |
-} |
- |
-// static |
-void AllocationRegister::FreeVirtualMemory(void* address, |
- size_t allocated_size) { |
- // For |VirtualFree|, the size passed with |MEM_RELEASE| mut be 0. Windows |
- // automatically frees the entire region that was reserved by the |
- // |VirtualAlloc| with flag |MEM_RESERVE|. |
- VirtualFree(address, 0, MEM_RELEASE); |
-} |
- |
-} // namespace trace_event |
-} // namespace base |