libsanitizer/tsan/tsan_new_delete.cc

   1 //===-- tsan_new_delete.cc ----------------------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of ThreadSanitizer (TSan), a race detector.
   9 //
  10 // Interceptors for operators new and delete.
  11 //===----------------------------------------------------------------------===//
  12 #include "interception/interception.h"
  13 #include "sanitizer_common/sanitizer_internal_defs.h"
  14 #include "tsan_interceptors.h"
  15
  16 using namespace __tsan;  // NOLINT
  17
  18 namespace std {
  19 struct nothrow_t {};
  20 }  // namespace std
  21
  22 DECLARE_REAL(void *, malloc, uptr size)
  23 DECLARE_REAL(void, free, void *ptr)
  24
  25 #define OPERATOR_NEW_BODY(mangled_name) \
  26   if (cur_thread()->in_symbolizer) \
  27     return InternalAlloc(size); \
  28   void *p = 0; \
  29   {  \
  30     SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
  31     p = user_alloc(thr, pc, size); \
  32   }  \
  33   invoke_malloc_hook(p, size);  \
  34   return p;
  35
  36 SANITIZER_INTERFACE_ATTRIBUTE
  37 void *operator new(__sanitizer::uptr size);
  38 void *operator new(__sanitizer::uptr size) {
  39   OPERATOR_NEW_BODY(_Znwm);
  40 }
  41
  42 SANITIZER_INTERFACE_ATTRIBUTE
  43 void *operator new[](__sanitizer::uptr size);
  44 void *operator new[](__sanitizer::uptr size) {
  45   OPERATOR_NEW_BODY(_Znam);
  46 }
  47
  48 SANITIZER_INTERFACE_ATTRIBUTE
  49 void *operator new(__sanitizer::uptr size, std::nothrow_t const&);
  50 void *operator new(__sanitizer::uptr size, std::nothrow_t const&) {
  51   OPERATOR_NEW_BODY(_ZnwmRKSt9nothrow_t);
  52 }
  53
  54 SANITIZER_INTERFACE_ATTRIBUTE
  55 void *operator new[](__sanitizer::uptr size, std::nothrow_t const&);
  56 void *operator new[](__sanitizer::uptr size, std::nothrow_t const&) {
  57   OPERATOR_NEW_BODY(_ZnamRKSt9nothrow_t);
  58 }
  59
  60 #define OPERATOR_DELETE_BODY(mangled_name) \
  61   if (ptr == 0) return;  \
  62   if (cur_thread()->in_symbolizer) \
  63     return InternalFree(ptr); \
  64   invoke_free_hook(ptr);  \
  65   SCOPED_INTERCEPTOR_RAW(mangled_name, ptr);  \
  66   user_free(thr, pc, ptr);
  67
  68 SANITIZER_INTERFACE_ATTRIBUTE
  69 void operator delete(void *ptr) NOEXCEPT;
  70 void operator delete(void *ptr) NOEXCEPT {
  71   OPERATOR_DELETE_BODY(_ZdlPv);
  72 }
  73
  74 SANITIZER_INTERFACE_ATTRIBUTE
  75 void operator delete[](void *ptr) NOEXCEPT;
  76 void operator delete[](void *ptr) NOEXCEPT {
  77   OPERATOR_DELETE_BODY(_ZdaPv);
  78 }
  79
  80 SANITIZER_INTERFACE_ATTRIBUTE
  81 void operator delete(void *ptr, std::nothrow_t const&);
  82 void operator delete(void *ptr, std::nothrow_t const&) {
  83   OPERATOR_DELETE_BODY(_ZdlPvRKSt9nothrow_t);
  84 }
  85
  86 SANITIZER_INTERFACE_ATTRIBUTE
  87 void operator delete[](void *ptr, std::nothrow_t const&);
  88 void operator delete[](void *ptr, std::nothrow_t const&) {
  89   OPERATOR_DELETE_BODY(_ZdaPvRKSt9nothrow_t);
  90 }