52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
//===-- sanitizer_stackdepot.h ----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is shared between AddressSanitizer and ThreadSanitizer
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// run-time libraries.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_STACKDEPOT_H
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#define SANITIZER_STACKDEPOT_H
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#include "sanitizer_common.h"
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#include "sanitizer_internal_defs.h"
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#include "sanitizer_stacktrace.h"
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namespace __sanitizer {
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// StackDepot efficiently stores huge amounts of stack traces.
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struct StackDepotNode;
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struct StackDepotHandle {
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StackDepotNode *node_ = nullptr;
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u32 id_ = 0;
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StackDepotHandle(StackDepotNode *node, u32 id) : node_(node), id_(id) {}
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bool valid() const { return node_; }
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u32 id() const { return id_; }
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int use_count() const;
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void inc_use_count_unsafe();
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};
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const int kStackDepotMaxUseCount = 1U << (SANITIZER_ANDROID ? 16 : 20);
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StackDepotStats StackDepotGetStats();
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u32 StackDepotPut(StackTrace stack);
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StackDepotHandle StackDepotPut_WithHandle(StackTrace stack);
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// Retrieves a stored stack trace by the id.
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StackTrace StackDepotGet(u32 id);
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void StackDepotLockAll();
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void StackDepotUnlockAll();
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void StackDepotPrintAll();
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void StackDepotStopBackgroundThread();
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void StackDepotTestOnlyUnmap();
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} // namespace __sanitizer
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#endif // SANITIZER_STACKDEPOT_H
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