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92a42be0 SL |
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 | //===----------------------------------------------------------------------===// | |
92a42be0 | 14 | #include "interception/interception.h" |
3157f602 | 15 | #include "sanitizer_common/sanitizer_internal_defs.h" |
92a42be0 SL |
16 | #include "tsan_interceptors.h" |
17 | ||
18 | using namespace __tsan; // NOLINT | |
19 | ||
20 | namespace std { | |
21 | struct nothrow_t {}; | |
22 | } // namespace std | |
23 | ||
24 | DECLARE_REAL(void *, malloc, uptr size) | |
25 | DECLARE_REAL(void, free, void *ptr) | |
3157f602 | 26 | #if SANITIZER_MAC || SANITIZER_ANDROID |
92a42be0 SL |
27 | #define __libc_malloc REAL(malloc) |
28 | #define __libc_free REAL(free) | |
29 | #endif | |
30 | ||
31 | #define OPERATOR_NEW_BODY(mangled_name) \ | |
32 | if (cur_thread()->in_symbolizer) \ | |
33 | return __libc_malloc(size); \ | |
34 | void *p = 0; \ | |
35 | { \ | |
36 | SCOPED_INTERCEPTOR_RAW(mangled_name, size); \ | |
37 | p = user_alloc(thr, pc, size); \ | |
38 | } \ | |
39 | invoke_malloc_hook(p, size); \ | |
40 | return p; | |
41 | ||
42 | SANITIZER_INTERFACE_ATTRIBUTE | |
43 | void *operator new(__sanitizer::uptr size); | |
44 | void *operator new(__sanitizer::uptr size) { | |
45 | OPERATOR_NEW_BODY(_Znwm); | |
46 | } | |
47 | ||
48 | SANITIZER_INTERFACE_ATTRIBUTE | |
49 | void *operator new[](__sanitizer::uptr size); | |
50 | void *operator new[](__sanitizer::uptr size) { | |
51 | OPERATOR_NEW_BODY(_Znam); | |
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(_ZnwmRKSt9nothrow_t); | |
58 | } | |
59 | ||
60 | SANITIZER_INTERFACE_ATTRIBUTE | |
61 | void *operator new[](__sanitizer::uptr size, std::nothrow_t const&); | |
62 | void *operator new[](__sanitizer::uptr size, std::nothrow_t const&) { | |
63 | OPERATOR_NEW_BODY(_ZnamRKSt9nothrow_t); | |
64 | } | |
65 | ||
66 | #define OPERATOR_DELETE_BODY(mangled_name) \ | |
67 | if (ptr == 0) return; \ | |
68 | if (cur_thread()->in_symbolizer) \ | |
69 | return __libc_free(ptr); \ | |
70 | invoke_free_hook(ptr); \ | |
71 | SCOPED_INTERCEPTOR_RAW(mangled_name, ptr); \ | |
72 | user_free(thr, pc, ptr); | |
73 | ||
74 | SANITIZER_INTERFACE_ATTRIBUTE | |
75 | void operator delete(void *ptr) NOEXCEPT; | |
76 | void operator delete(void *ptr) NOEXCEPT { | |
77 | OPERATOR_DELETE_BODY(_ZdlPv); | |
78 | } | |
79 | ||
80 | SANITIZER_INTERFACE_ATTRIBUTE | |
81 | void operator delete[](void *ptr) NOEXCEPT; | |
82 | void operator delete[](void *ptr) NOEXCEPT { | |
83 | OPERATOR_DELETE_BODY(_ZdaPv); | |
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(_ZdlPvRKSt9nothrow_t); | |
90 | } | |
91 | ||
92 | SANITIZER_INTERFACE_ATTRIBUTE | |
93 | void operator delete[](void *ptr, std::nothrow_t const&); | |
94 | void operator delete[](void *ptr, std::nothrow_t const&) { | |
95 | OPERATOR_DELETE_BODY(_ZdaPvRKSt9nothrow_t); | |
96 | } |