1//===-- tsan_malloc_mac.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// Mac-specific malloc interception.
13//===----------------------------------------------------------------------===//
14
15#include "sanitizer_common/sanitizer_platform.h"
16#if SANITIZER_MAC
17
18#include "sanitizer_common/sanitizer_errno.h"
19#include "tsan_interceptors.h"
20#include "tsan_stack_trace.h"
21
22using namespace __tsan;
23#define COMMON_MALLOC_ZONE_NAME "tsan"
24#define COMMON_MALLOC_ENTER()
25#define COMMON_MALLOC_SANITIZER_INITIALIZED (cur_thread()->is_inited)
26#define COMMON_MALLOC_FORCE_LOCK()
27#define COMMON_MALLOC_FORCE_UNLOCK()
28#define COMMON_MALLOC_MEMALIGN(alignment, size) \
29  void *p =                                     \
30      user_memalign(cur_thread(), StackTrace::GetCurrentPc(), alignment, size)
31#define COMMON_MALLOC_MALLOC(size)                             \
32  if (cur_thread()->in_symbolizer) return InternalAlloc(size); \
33  SCOPED_INTERCEPTOR_RAW(malloc, size);                        \
34  void *p = user_alloc(thr, pc, size)
35#define COMMON_MALLOC_REALLOC(ptr, size)                              \
36  if (cur_thread()->in_symbolizer) return InternalRealloc(ptr, size); \
37  SCOPED_INTERCEPTOR_RAW(realloc, ptr, size);                         \
38  void *p = user_realloc(thr, pc, ptr, size)
39#define COMMON_MALLOC_CALLOC(count, size)                              \
40  if (cur_thread()->in_symbolizer) return InternalCalloc(count, size); \
41  SCOPED_INTERCEPTOR_RAW(calloc, size, count);                         \
42  void *p = user_calloc(thr, pc, size, count)
43#define COMMON_MALLOC_POSIX_MEMALIGN(memptr, alignment, size)      \
44  if (cur_thread()->in_symbolizer) {                               \
45    void *p = InternalAlloc(size, nullptr, alignment);             \
46    if (!p) return errno_ENOMEM;                                   \
47    *memptr = p;                                                   \
48    return 0;                                                      \
49  }                                                                \
50  SCOPED_INTERCEPTOR_RAW(posix_memalign, memptr, alignment, size); \
51  int res = user_posix_memalign(thr, pc, memptr, alignment, size);
52#define COMMON_MALLOC_VALLOC(size)                            \
53  if (cur_thread()->in_symbolizer)                            \
54    return InternalAlloc(size, nullptr, GetPageSizeCached()); \
55  SCOPED_INTERCEPTOR_RAW(valloc, size);                       \
56  void *p = user_valloc(thr, pc, size)
57#define COMMON_MALLOC_FREE(ptr)                              \
58  if (cur_thread()->in_symbolizer) return InternalFree(ptr); \
59  SCOPED_INTERCEPTOR_RAW(free, ptr);                         \
60  user_free(thr, pc, ptr)
61#define COMMON_MALLOC_SIZE(ptr) uptr size = user_alloc_usable_size(ptr);
62#define COMMON_MALLOC_FILL_STATS(zone, stats)
63#define COMMON_MALLOC_REPORT_UNKNOWN_REALLOC(ptr, zone_ptr, zone_name) \
64  (void)zone_name; \
65  Report("mz_realloc(%p) -- attempting to realloc unallocated memory.\n", ptr);
66#define COMMON_MALLOC_NAMESPACE __tsan
67
68#include "sanitizer_common/sanitizer_malloc_mac.inc"
69
70#endif
71