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      1 //===-- tsan_mman.h ---------------------------------------------*- C++ -*-===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 //
     10 // This file is a part of ThreadSanitizer (TSan), a race detector.
     11 //
     12 //===----------------------------------------------------------------------===//
     13 #ifndef TSAN_MMAN_H
     14 #define TSAN_MMAN_H
     15 
     16 #include "tsan_defs.h"
     17 
     18 namespace __tsan {
     19 
     20 const uptr kDefaultAlignment = 16;
     21 
     22 void InitializeAllocator();
     23 void AlloctorThreadFinish(ThreadState *thr);
     24 
     25 // For user allocations.
     26 void *user_alloc(ThreadState *thr, uptr pc, uptr sz,
     27                  uptr align = kDefaultAlignment);
     28 // Does not accept NULL.
     29 void user_free(ThreadState *thr, uptr pc, void *p);
     30 void *user_realloc(ThreadState *thr, uptr pc, void *p, uptr sz);
     31 void *user_alloc_aligned(ThreadState *thr, uptr pc, uptr sz, uptr align);
     32 // Given the pointer p into a valid allocated block,
     33 // returns the descriptor of the block.
     34 MBlock *user_mblock(ThreadState *thr, void *p);
     35 
     36 enum MBlockType {
     37   MBlockScopedBuf,
     38   MBlockString,
     39   MBlockStackTrace,
     40   MBlockShadowStack,
     41   MBlockSync,
     42   MBlockClock,
     43   MBlockThreadContex,
     44   MBlockDeadInfo,
     45   MBlockRacyStacks,
     46   MBlockRacyAddresses,
     47   MBlockAtExit,
     48   MBlockFlag,
     49   MBlockReport,
     50   MBlockReportMop,
     51   MBlockReportThread,
     52   MBlockReportMutex,
     53   MBlockReportLoc,
     54   MBlockReportStack,
     55   MBlockSuppression,
     56   MBlockExpectRace,
     57   MBlockSignal,
     58 
     59   // This must be the last.
     60   MBlockTypeCount,
     61 };
     62 
     63 // For internal data structures.
     64 void *internal_alloc(MBlockType typ, uptr sz);
     65 void internal_free(void *p);
     66 
     67 template<typename T>
     68 void DestroyAndFree(T *&p) {
     69   p->~T();
     70   internal_free(p);
     71   p = 0;
     72 }
     73 
     74 }  // namespace __tsan
     75 #endif  // TSAN_MMAN_H
     76