1 files changed, 85 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_allocator.h b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_allocator.h
new file mode 100644
index 000000000000..0b28f86d1408
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+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_allocator.h
@@ -0,0 +1,85 @@
+//===-- sanitizer_allocator.h -----------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Specialized memory allocator for ThreadSanitizer, MemorySanitizer, etc.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SANITIZER_ALLOCATOR_H
+#define SANITIZER_ALLOCATOR_H
+
+#include "sanitizer_common.h"
+#include "sanitizer_flat_map.h"
+#include "sanitizer_internal_defs.h"
+#include "sanitizer_lfstack.h"
+#include "sanitizer_libc.h"
+#include "sanitizer_list.h"
+#include "sanitizer_local_address_space_view.h"
+#include "sanitizer_mutex.h"
+#include "sanitizer_procmaps.h"
+#include "sanitizer_type_traits.h"
+
+namespace __sanitizer {
+
+// Allows the tools to name their allocations appropriately.
+extern const char *PrimaryAllocatorName;
+extern const char *SecondaryAllocatorName;
+
+// Since flags are immutable and allocator behavior can be changed at runtime
+// (unit tests or ASan on Android are some examples), allocator_may_return_null
+// flag value is cached here and can be altered later.
+bool AllocatorMayReturnNull();
+void SetAllocatorMayReturnNull(bool may_return_null);
+
+// Returns true if allocator detected OOM condition. Can be used to avoid memory
+// hungry operations.
+bool IsAllocatorOutOfMemory();
+// Should be called by a particular allocator when OOM is detected.
+void SetAllocatorOutOfMemory();
+
+void PrintHintAllocatorCannotReturnNull();
+
+// Callback type for iterating over chunks.
+typedef void (*ForEachChunkCallback)(uptr chunk, void *arg);
+
+inline u32 Rand(u32 *state) {  // ANSI C linear congruential PRNG.
+  return (*state = *state * 1103515245 + 12345) >> 16;
+}
+
+inline u32 RandN(u32 *state, u32 n) { return Rand(state) % n; }  // [0, n)
+
+template<typename T>
+inline void RandomShuffle(T *a, u32 n, u32 *rand_state) {
+  if (n <= 1) return;
+  u32 state = *rand_state;
+  for (u32 i = n - 1; i > 0; i--)
+    Swap(a[i], a[RandN(&state, i + 1)]);
+  *rand_state = state;
+}
+
+struct NoOpMapUnmapCallback {
+  void OnMap(uptr p, uptr size) const {}
+  void OnMapSecondary(uptr p, uptr size, uptr user_begin,
+                      uptr user_size) const {}
+  void OnUnmap(uptr p, uptr size) const {}
+};
+
+#include "sanitizer_allocator_size_class_map.h"
+#include "sanitizer_allocator_stats.h"
+#include "sanitizer_allocator_primary64.h"
+#include "sanitizer_allocator_primary32.h"
+#include "sanitizer_allocator_local_cache.h"
+#include "sanitizer_allocator_secondary.h"
+#include "sanitizer_allocator_combined.h"
+
+bool IsRssLimitExceeded();
+void SetRssLimitExceeded(bool limit_exceeded);
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_ALLOCATOR_H