Index: base/trace_event/memory_profiler_allocation_register_posix.cc |
diff --git a/base/trace_event/memory_profiler_allocation_register_posix.cc b/base/trace_event/memory_profiler_allocation_register_posix.cc |
deleted file mode 100644 |
index e2231a84a39c286b33c2fc7af381458f17b25546..0000000000000000000000000000000000000000 |
--- a/base/trace_event/memory_profiler_allocation_register_posix.cc |
+++ /dev/null |
@@ -1,59 +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 <sys/mman.h> |
-#include <unistd.h> |
- |
-#include "base/basictypes.h" |
-#include "base/bits.h" |
-#include "base/logging.h" |
-#include "base/process/process_metrics.h" |
- |
-#ifndef MAP_ANONYMOUS |
-#define MAP_ANONYMOUS MAP_ANON |
-#endif |
- |
-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(); |
- |
- void* addr = mmap(nullptr, map_size, PROT_READ | PROT_WRITE, |
- MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
- |
- PCHECK(addr != MAP_FAILED); |
- |
- // Mark the last page of the allocated address space as inaccessible |
- // (PROT_NONE). The read/write accessible space is still at least |min_size| |
- // bytes. |
- void* guard_addr = |
- reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(addr) + size); |
- int result = mprotect(guard_addr, GetGuardSize(), PROT_NONE); |
- PCHECK(result == 0); |
- |
- return addr; |
-} |
- |
-// static |
-void AllocationRegister::FreeVirtualMemory(void* address, |
- size_t allocated_size) { |
- size_t size = bits::Align(allocated_size, GetPageSize()) + GetGuardSize(); |
- munmap(address, size); |
-} |
- |
-} // namespace trace_event |
-} // namespace base |