1 files changed, 0 insertions, 134 deletions
diff --git a/linker/linker_allocator.cpp b/linker/linker_allocator.cpp
deleted file mode 100644
index ac11b979a..000000000
--- a/linker/linker_allocator.cpp
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * 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 "linker_allocator.h"
-#include <inttypes.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <unistd.h>
-
-#include "private/bionic_prctl.h"
-
-struct LinkerAllocatorPage {
-  LinkerAllocatorPage* next;
-  uint8_t bytes[PAGE_SIZE-sizeof(LinkerAllocatorPage*)];
-};
-
-struct FreeBlockInfo {
-  void* next_block;
-  size_t num_free_blocks;
-};
-
-LinkerBlockAllocator::LinkerBlockAllocator(size_t block_size)
-  : block_size_(block_size < sizeof(FreeBlockInfo) ? sizeof(FreeBlockInfo) : block_size),
-    page_list_(nullptr),
-    free_block_list_(nullptr)
-{}
-
-void* LinkerBlockAllocator::alloc() {
-  if (free_block_list_ == nullptr) {
-    create_new_page();
-  }
-
-  FreeBlockInfo* block_info = reinterpret_cast<FreeBlockInfo*>(free_block_list_);
-  if (block_info->num_free_blocks > 1) {
-    FreeBlockInfo* next_block_info = reinterpret_cast<FreeBlockInfo*>(
-      reinterpret_cast<char*>(free_block_list_) + block_size_);
-    next_block_info->next_block = block_info->next_block;
-    next_block_info->num_free_blocks = block_info->num_free_blocks - 1;
-    free_block_list_ = next_block_info;
-  } else {
-    free_block_list_ = block_info->next_block;
-  }
-
-  memset(block_info, 0, block_size_);
-
-  return block_info;
-}
-
-void LinkerBlockAllocator::free(void* block) {
-  if (block == nullptr) {
-    return;
-  }
-
-  LinkerAllocatorPage* page = find_page(block);
-
-  if (page == nullptr) {
-    abort();
-  }
-
-  ssize_t offset = reinterpret_cast<uint8_t*>(block) - page->bytes;
-
-  if (offset % block_size_ != 0) {
-    abort();
-  }
-
-  memset(block, 0, block_size_);
-
-  FreeBlockInfo* block_info = reinterpret_cast<FreeBlockInfo*>(block);
-
-  block_info->next_block = free_block_list_;
-  block_info->num_free_blocks = 1;
-
-  free_block_list_ = block_info;
-}
-
-void LinkerBlockAllocator::protect_all(int prot) {
-  for (LinkerAllocatorPage* page = page_list_; page != nullptr; page = page->next) {
-    if (mprotect(page, PAGE_SIZE, prot) == -1) {
-      abort();
-    }
-  }
-}
-
-void LinkerBlockAllocator::create_new_page() {
-  LinkerAllocatorPage* page = reinterpret_cast<LinkerAllocatorPage*>(mmap(nullptr, PAGE_SIZE,
-      PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0));
-  if (page == MAP_FAILED) {
-    abort(); // oom
-  }
-
-  prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, page, PAGE_SIZE, "linker_alloc");
-
-  memset(page, 0, PAGE_SIZE);
-
-  FreeBlockInfo* first_block = reinterpret_cast<FreeBlockInfo*>(page->bytes);
-  first_block->next_block = free_block_list_;
-  first_block->num_free_blocks = (PAGE_SIZE - sizeof(LinkerAllocatorPage*))/block_size_;
-
-  free_block_list_ = first_block;
-
-  page->next = page_list_;
-  page_list_ = page;
-}
-
-LinkerAllocatorPage* LinkerBlockAllocator::find_page(void* block) {
-  if (block == nullptr) {
-    abort();
-  }
-
-  LinkerAllocatorPage* page = page_list_;
-  while (page != nullptr) {
-    const uint8_t* page_ptr = reinterpret_cast<const uint8_t*>(page);
-    if (block >= (page_ptr + sizeof(page->next)) && block < (page_ptr + PAGE_SIZE)) {
-      return page;
-    }
-
-    page = page->next;
-  }
-
-  abort();
-}