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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 InitializeAllocatorLate();
     24 void ReplaceSystemMalloc();
     25 void AllocatorProcStart(Processor *proc);
     26 void AllocatorProcFinish(Processor *proc);
     27 void AllocatorPrintStats();
     28 
     29 // For user allocations.
     30 void *user_alloc_internal(ThreadState *thr, uptr pc, uptr sz,
     31                           uptr align = kDefaultAlignment, bool signal = true);
     32 // Does not accept NULL.
     33 void user_free(ThreadState *thr, uptr pc, void *p, bool signal = true);
     34 // Interceptor implementations.
     35 void *user_alloc(ThreadState *thr, uptr pc, uptr sz);
     36 void *user_calloc(ThreadState *thr, uptr pc, uptr sz, uptr n);
     37 void *user_realloc(ThreadState *thr, uptr pc, void *p, uptr sz);
     38 void *user_memalign(ThreadState *thr, uptr pc, uptr align, uptr sz);
     39 int user_posix_memalign(ThreadState *thr, uptr pc, void **memptr, uptr align,
     40                         uptr sz);
     41 void *user_aligned_alloc(ThreadState *thr, uptr pc, uptr align, uptr sz);
     42 void *user_valloc(ThreadState *thr, uptr pc, uptr sz);
     43 void *user_pvalloc(ThreadState *thr, uptr pc, uptr sz);
     44 uptr user_alloc_usable_size(const void *p);
     45 
     46 // Invoking malloc/free hooks that may be installed by the user.
     47 void invoke_malloc_hook(void *ptr, uptr size);
     48 void invoke_free_hook(void *ptr);
     49 
     50 enum MBlockType {
     51   MBlockScopedBuf,
     52   MBlockString,
     53   MBlockStackTrace,
     54   MBlockShadowStack,
     55   MBlockSync,
     56   MBlockClock,
     57   MBlockThreadContex,
     58   MBlockDeadInfo,
     59   MBlockRacyStacks,
     60   MBlockRacyAddresses,
     61   MBlockAtExit,
     62   MBlockFlag,
     63   MBlockReport,
     64   MBlockReportMop,
     65   MBlockReportThread,
     66   MBlockReportMutex,
     67   MBlockReportLoc,
     68   MBlockReportStack,
     69   MBlockSuppression,
     70   MBlockExpectRace,
     71   MBlockSignal,
     72   MBlockJmpBuf,
     73 
     74   // This must be the last.
     75   MBlockTypeCount
     76 };
     77 
     78 // For internal data structures.
     79 void *internal_alloc(MBlockType typ, uptr sz);
     80 void internal_free(void *p);
     81 
     82 template<typename T>
     83 void DestroyAndFree(T *&p) {
     84   p->~T();
     85   internal_free(p);
     86   p = 0;
     87 }
     88 
     89 }  // namespace __tsan
     90 #endif  // TSAN_MMAN_H
     91