tsan_new_delete.cc revision 287626 
1//===-- tsan_new_delete.cc ----------------------------------------------===//
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// Interceptors for operators new and delete.
13//===----------------------------------------------------------------------===//
14#include "sanitizer_common/sanitizer_internal_defs.h"
15#include "tsan_interceptors.h"
16
17using namespace __tsan;  // NOLINT
18
19namespace std {
20struct nothrow_t {};
21}  // namespace std
22
23#define OPERATOR_NEW_BODY(mangled_name) \
24  if (cur_thread()->in_symbolizer) \
25    return __libc_malloc(size); \
26  void *p = 0; \
27  {  \
28    SCOPED_INTERCEPTOR_RAW(mangled_name, size); \
29    p = user_alloc(thr, pc, size); \
30  }  \
31  invoke_malloc_hook(p, size);  \
32  return p;
33
34SANITIZER_INTERFACE_ATTRIBUTE
35void *operator new(__sanitizer::uptr size);
36void *operator new(__sanitizer::uptr size) {
37  OPERATOR_NEW_BODY(_Znwm);
38}
39
40SANITIZER_INTERFACE_ATTRIBUTE
41void *operator new[](__sanitizer::uptr size);
42void *operator new[](__sanitizer::uptr size) {
43  OPERATOR_NEW_BODY(_Znam);
44}
45
46SANITIZER_INTERFACE_ATTRIBUTE
47void *operator new(__sanitizer::uptr size, std::nothrow_t const&);
48void *operator new(__sanitizer::uptr size, std::nothrow_t const&) {
49  OPERATOR_NEW_BODY(_ZnwmRKSt9nothrow_t);
50}
51
52SANITIZER_INTERFACE_ATTRIBUTE
53void *operator new[](__sanitizer::uptr size, std::nothrow_t const&);
54void *operator new[](__sanitizer::uptr size, std::nothrow_t const&) {
55  OPERATOR_NEW_BODY(_ZnamRKSt9nothrow_t);
56}
57
58#define OPERATOR_DELETE_BODY(mangled_name) \
59  if (ptr == 0) return;  \
60  if (cur_thread()->in_symbolizer) \
61    return __libc_free(ptr); \
62  invoke_free_hook(ptr);  \
63  SCOPED_INTERCEPTOR_RAW(mangled_name, ptr);  \
64  user_free(thr, pc, ptr);
65
66SANITIZER_INTERFACE_ATTRIBUTE
67void operator delete(void *ptr) throw();
68void operator delete(void *ptr) throw() {
69  OPERATOR_DELETE_BODY(_ZdlPv);
70}
71
72SANITIZER_INTERFACE_ATTRIBUTE
73void operator delete[](void *ptr) throw();
74void operator delete[](void *ptr) throw() {
75  OPERATOR_DELETE_BODY(_ZdaPv);
76}
77
78SANITIZER_INTERFACE_ATTRIBUTE
79void operator delete(void *ptr, std::nothrow_t const&);
80void operator delete(void *ptr, std::nothrow_t const&) {
81  OPERATOR_DELETE_BODY(_ZdlPvRKSt9nothrow_t);
82}
83
84SANITIZER_INTERFACE_ATTRIBUTE
85void operator delete[](void *ptr, std::nothrow_t const&);
86void operator delete[](void *ptr, std::nothrow_t const&) {
87  OPERATOR_DELETE_BODY(_ZdaPvRKSt9nothrow_t);
88}
89