1 files changed, 0 insertions, 162 deletions
diff --git a/absl/base/internal/malloc_extension.cc b/absl/base/internal/malloc_extension.cc
deleted file mode 100644
index 5b90653360aa..000000000000
--- a/absl/base/internal/malloc_extension.cc
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright 2017 The Abseil Authors.
-//
-// 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 "absl/base/internal/malloc_extension.h"
-
-#include <assert.h>
-#include <string.h>
-#include <atomic>
-#include <string>
-
-#include "absl/base/dynamic_annotations.h"
-
-namespace absl {
-namespace base_internal {
-
-// SysAllocator implementation
-SysAllocator::~SysAllocator() {}
-void SysAllocator::GetStats(char* buffer, int) { buffer[0] = 0; }
-
-// Dummy key method to avoid weak vtable.
-void MallocExtensionWriter::UnusedKeyMethod() {}
-
-void StringMallocExtensionWriter::Write(const char* buf, int len) {
-  out_->append(buf, len);
-}
-
-// Default implementation -- does nothing
-MallocExtension::~MallocExtension() { }
-bool MallocExtension::VerifyAllMemory() { return true; }
-bool MallocExtension::VerifyNewMemory(const void*) { return true; }
-bool MallocExtension::VerifyArrayNewMemory(const void*) { return true; }
-bool MallocExtension::VerifyMallocMemory(const void*) { return true; }
-
-bool MallocExtension::GetNumericProperty(const char*, size_t*) {
-  return false;
-}
-
-bool MallocExtension::SetNumericProperty(const char*, size_t) {
-  return false;
-}
-
-void MallocExtension::GetStats(char* buffer, int length) {
-  assert(length > 0);
-  static_cast<void>(length);
-  buffer[0] = '\0';
-}
-
-bool MallocExtension::MallocMemoryStats(int* blocks, size_t* total,
-                                        int histogram[kMallocHistogramSize]) {
-  *blocks = 0;
-  *total = 0;
-  memset(histogram, 0, sizeof(*histogram) * kMallocHistogramSize);
-  return true;
-}
-
-void MallocExtension::MarkThreadIdle() {
-  // Default implementation does nothing
-}
-
-void MallocExtension::MarkThreadBusy() {
-  // Default implementation does nothing
-}
-
-SysAllocator* MallocExtension::GetSystemAllocator() {
-  return nullptr;
-}
-
-void MallocExtension::SetSystemAllocator(SysAllocator*) {
-  // Default implementation does nothing
-}
-
-void MallocExtension::ReleaseToSystem(size_t) {
-  // Default implementation does nothing
-}
-
-void MallocExtension::ReleaseFreeMemory() {
-  ReleaseToSystem(static_cast<size_t>(-1));   // SIZE_T_MAX
-}
-
-void MallocExtension::SetMemoryReleaseRate(double) {
-  // Default implementation does nothing
-}
-
-double MallocExtension::GetMemoryReleaseRate() {
-  return -1.0;
-}
-
-size_t MallocExtension::GetEstimatedAllocatedSize(size_t size) {
-  return size;
-}
-
-size_t MallocExtension::GetAllocatedSize(const void* p) {
-  assert(GetOwnership(p) != kNotOwned);
-  static_cast<void>(p);
-  return 0;
-}
-
-MallocExtension::Ownership MallocExtension::GetOwnership(const void*) {
-  return kUnknownOwnership;
-}
-
-void MallocExtension::GetProperties(MallocExtension::StatLevel,
-                                    std::map<std::string, Property>* result) {
-  result->clear();
-}
-
-size_t MallocExtension::ReleaseCPUMemory(int) {
-  return 0;
-}
-
-// The current malloc extension object.
-
-std::atomic<MallocExtension*> MallocExtension::current_instance_;
-
-MallocExtension* MallocExtension::InitModule() {
-  MallocExtension* ext = new MallocExtension;
-  current_instance_.store(ext, std::memory_order_release);
-  return ext;
-}
-
-void MallocExtension::Register(MallocExtension* implementation) {
-  InitModuleOnce();
-  // When running under valgrind, our custom malloc is replaced with
-  // valgrind's one and malloc extensions will not work.  (Note:
-  // callers should be responsible for checking that they are the
-  // malloc that is really being run, before calling Register.  This
-  // is just here as an extra sanity check.)
-  // Under compiler-based ThreadSanitizer RunningOnValgrind() returns true,
-  // but we still want to use malloc extensions.
-#ifndef THREAD_SANITIZER
-  if (RunningOnValgrind()) {
-    return;
-  }
-#endif  // #ifndef THREAD_SANITIZER
-  current_instance_.store(implementation, std::memory_order_release);
-}
-void MallocExtension::GetHeapSample(MallocExtensionWriter*) {}
-
-void MallocExtension::GetHeapGrowthStacks(MallocExtensionWriter*) {}
-
-void MallocExtension::GetFragmentationProfile(MallocExtensionWriter*) {}
-
-}  // namespace base_internal
-}  // namespace absl
-
-// Default implementation just returns size. The expectation is that
-// the linked-in malloc implementation might provide an override of
-// this weak function with a better implementation.
-ABSL_ATTRIBUTE_WEAK ABSL_ATTRIBUTE_NOINLINE size_t nallocx(size_t size, int) {
-  return size;
-}