1 files changed, 121 insertions, 0 deletions
diff --git a/gcc-4.9/libsanitizer/asan/asan_allocator.h b/gcc-4.9/libsanitizer/asan/asan_allocator.h
new file mode 100644
index 000000000..763f4a58e
--- /dev/null
+++ b/gcc-4.9/libsanitizer/asan/asan_allocator.h
@@ -0,0 +1,121 @@
+//===-- asan_allocator.h ----------------------------------------*- C++ -*-===//
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of AddressSanitizer, an address sanity checker.
+//
+// ASan-private header for asan_allocator2.cc.
+//===----------------------------------------------------------------------===//
+
+#ifndef ASAN_ALLOCATOR_H
+#define ASAN_ALLOCATOR_H
+
+#include "asan_internal.h"
+#include "asan_interceptors.h"
+#include "sanitizer_common/sanitizer_list.h"
+
+namespace __asan {
+
+enum AllocType {
+  FROM_MALLOC = 1,  // Memory block came from malloc, calloc, realloc, etc.
+  FROM_NEW = 2,     // Memory block came from operator new.
+  FROM_NEW_BR = 3   // Memory block came from operator new [ ]
+};
+
+static const uptr kNumberOfSizeClasses = 255;
+struct AsanChunk;
+
+void InitializeAllocator();
+
+class AsanChunkView {
+ public:
+  explicit AsanChunkView(AsanChunk *chunk) : chunk_(chunk) {}
+  bool IsValid();   // Checks if AsanChunkView points to a valid allocated
+                    // or quarantined chunk.
+  uptr Beg();       // First byte of user memory.
+  uptr End();       // Last byte of user memory.
+  uptr UsedSize();  // Size requested by the user.
+  uptr AllocTid();
+  uptr FreeTid();
+  void GetAllocStack(StackTrace *stack);
+  void GetFreeStack(StackTrace *stack);
+  bool AddrIsInside(uptr addr, uptr access_size, sptr *offset) {
+    if (addr >= Beg() && (addr + access_size) <= End()) {
+      *offset = addr - Beg();
+      return true;
+    }
+    return false;
+  }
+  bool AddrIsAtLeft(uptr addr, uptr access_size, sptr *offset) {
+    (void)access_size;
+    if (addr < Beg()) {
+      *offset = Beg() - addr;
+      return true;
+    }
+    return false;
+  }
+  bool AddrIsAtRight(uptr addr, uptr access_size, sptr *offset) {
+    if (addr + access_size > End()) {
+      *offset = addr - End();
+      return true;
+    }
+    return false;
+  }
+
+ private:
+  AsanChunk *const chunk_;
+};
+
+AsanChunkView FindHeapChunkByAddress(uptr address);
+
+// List of AsanChunks with total size.
+class AsanChunkFifoList: public IntrusiveList<AsanChunk> {
+ public:
+  explicit AsanChunkFifoList(LinkerInitialized) { }
+  AsanChunkFifoList() { clear(); }
+  void Push(AsanChunk *n);
+  void PushList(AsanChunkFifoList *q);
+  AsanChunk *Pop();
+  uptr size() { return size_; }
+  void clear() {
+    IntrusiveList<AsanChunk>::clear();
+    size_ = 0;
+  }
+ private:
+  uptr size_;
+};
+
+struct AsanThreadLocalMallocStorage {
+  uptr quarantine_cache[16];
+  uptr allocator2_cache[96 * (512 * 8 + 16)];  // Opaque.
+  void CommitBack();
+ private:
+  // These objects are allocated via mmap() and are zero-initialized.
+  AsanThreadLocalMallocStorage() {}
+};
+
+void *asan_memalign(uptr alignment, uptr size, StackTrace *stack,
+                    AllocType alloc_type);
+void asan_free(void *ptr, StackTrace *stack, AllocType alloc_type);
+
+void *asan_malloc(uptr size, StackTrace *stack);
+void *asan_calloc(uptr nmemb, uptr size, StackTrace *stack);
+void *asan_realloc(void *p, uptr size, StackTrace *stack);
+void *asan_valloc(uptr size, StackTrace *stack);
+void *asan_pvalloc(uptr size, StackTrace *stack);
+
+int asan_posix_memalign(void **memptr, uptr alignment, uptr size,
+                          StackTrace *stack);
+uptr asan_malloc_usable_size(void *ptr, uptr pc, uptr bp);
+
+uptr asan_mz_size(const void *ptr);
+void asan_mz_force_lock();
+void asan_mz_force_unlock();
+
+void PrintInternalAllocatorStats();
+
+}  // namespace __asan
+#endif  // ASAN_ALLOCATOR_H