1 //===-- tsan_new_delete.cc ----------------------------------------------===//
3 // This file is distributed under the University of Illinois Open Source
4 // License. See LICENSE.TXT for details.
6 //===----------------------------------------------------------------------===//
8 // This file is a part of ThreadSanitizer (TSan), a race detector.
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"
16 using namespace __tsan
; // NOLINT
22 DECLARE_REAL(void *, malloc
, uptr size
)
23 DECLARE_REAL(void, free
, void *ptr
)
25 #define OPERATOR_NEW_BODY(mangled_name) \
26 if (cur_thread()->in_symbolizer) \
27 return InternalAlloc(size); \
30 SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
31 p = user_alloc(thr, pc, size); \
33 invoke_malloc_hook(p, size); \
36 SANITIZER_INTERFACE_ATTRIBUTE
37 void *operator new(__sanitizer::uptr size
);
38 void *operator new(__sanitizer::uptr size
) {
39 OPERATOR_NEW_BODY(_Znwm
);
42 SANITIZER_INTERFACE_ATTRIBUTE
43 void *operator new[](__sanitizer::uptr size
);
44 void *operator new[](__sanitizer::uptr size
) {
45 OPERATOR_NEW_BODY(_Znam
);
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
);
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
);
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);
68 SANITIZER_INTERFACE_ATTRIBUTE
69 void operator delete(void *ptr
) NOEXCEPT
;
70 void operator delete(void *ptr
) NOEXCEPT
{
71 OPERATOR_DELETE_BODY(_ZdlPv
);
74 SANITIZER_INTERFACE_ATTRIBUTE
75 void operator delete[](void *ptr
) NOEXCEPT
;
76 void operator delete[](void *ptr
) NOEXCEPT
{
77 OPERATOR_DELETE_BODY(_ZdaPv
);
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
);
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
);