1 //===-- tsan_malloc_mac.cpp -----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of ThreadSanitizer (TSan), a race detector.
10 //
11 // Mac-specific malloc interception.
12 //===----------------------------------------------------------------------===//
13 
14 #include "sanitizer_common/sanitizer_platform.h"
15 #if SANITIZER_MAC
16 
17 #include "sanitizer_common/sanitizer_errno.h"
18 #include "tsan_interceptors.h"
19 #include "tsan_stack_trace.h"
20 
21 using namespace __tsan;
22 #define COMMON_MALLOC_ZONE_NAME "tsan"
23 #define COMMON_MALLOC_ENTER()
24 #define COMMON_MALLOC_SANITIZER_INITIALIZED (cur_thread()->is_inited)
25 #define COMMON_MALLOC_FORCE_LOCK()
26 #define COMMON_MALLOC_FORCE_UNLOCK()
27 #define COMMON_MALLOC_MEMALIGN(alignment, size) \
28   void *p =                                     \
29       user_memalign(cur_thread(), StackTrace::GetCurrentPc(), alignment, size)
30 #define COMMON_MALLOC_MALLOC(size)                             \
31   if (in_symbolizer()) return InternalAlloc(size);             \
32   SCOPED_INTERCEPTOR_RAW(malloc, size);                        \
33   void *p = user_alloc(thr, pc, size)
34 #define COMMON_MALLOC_REALLOC(ptr, size)                              \
35   if (in_symbolizer()) return InternalRealloc(ptr, size);             \
36   SCOPED_INTERCEPTOR_RAW(realloc, ptr, size);                         \
37   void *p = user_realloc(thr, pc, ptr, size)
38 #define COMMON_MALLOC_CALLOC(count, size)                              \
39   if (in_symbolizer()) return InternalCalloc(count, size);             \
40   SCOPED_INTERCEPTOR_RAW(calloc, size, count);                         \
41   void *p = user_calloc(thr, pc, size, count)
42 #define COMMON_MALLOC_POSIX_MEMALIGN(memptr, alignment, size)      \
43   if (in_symbolizer()) {                                           \
44     void *p = InternalAlloc(size, nullptr, alignment);             \
45     if (!p) return errno_ENOMEM;                                   \
46     *memptr = p;                                                   \
47     return 0;                                                      \
48   }                                                                \
49   SCOPED_INTERCEPTOR_RAW(posix_memalign, memptr, alignment, size); \
50   int res = user_posix_memalign(thr, pc, memptr, alignment, size);
51 #define COMMON_MALLOC_VALLOC(size)                            \
52   if (in_symbolizer())                                        \
53     return InternalAlloc(size, nullptr, GetPageSizeCached()); \
54   SCOPED_INTERCEPTOR_RAW(valloc, size);                       \
55   void *p = user_valloc(thr, pc, size)
56 #define COMMON_MALLOC_FREE(ptr)                              \
57   if (in_symbolizer()) return InternalFree(ptr);             \
58   SCOPED_INTERCEPTOR_RAW(free, ptr);                         \
59   user_free(thr, pc, ptr)
60 #define COMMON_MALLOC_SIZE(ptr) uptr size = user_alloc_usable_size(ptr);
61 #define COMMON_MALLOC_FILL_STATS(zone, stats)
62 #define COMMON_MALLOC_REPORT_UNKNOWN_REALLOC(ptr, zone_ptr, zone_name) \
63   (void)zone_name; \
64   Report("mz_realloc(%p) -- attempting to realloc unallocated memory.\n", ptr);
65 #define COMMON_MALLOC_NAMESPACE __tsan
66 #define COMMON_MALLOC_HAS_ZONE_ENUMERATOR 0
67 #define COMMON_MALLOC_HAS_EXTRA_INTROSPECTION_INIT 0
68 
69 #include "sanitizer_common/sanitizer_malloc_mac.inc"
70 
71 #endif
72