libsanitizer/asan/dynamic/asan_interceptors_dynamic.cc

   1 //===-- asan_interceptors_dynamic.cc --------------------------------------===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // This file is a part of AddressSanitizer, an address sanity checker.
   9 //
  10 // __DATA,__interpose section of the dynamic runtime library for Mac OS.
  11 //===----------------------------------------------------------------------===//
  12
  13 #if defined(__APPLE__)
  14
  15 #include "../asan_interceptors.h"
  16 #include "../asan_intercepted_functions.h"
  17
  18 namespace __asan {
  19
  20 #define INTERPOSE_FUNCTION(function) \
  21     { reinterpret_cast<const uptr>(WRAP(function)), \
  22       reinterpret_cast<const uptr>(function) }
  23
  24 #define INTERPOSE_FUNCTION_2(function, wrapper) \
  25     { reinterpret_cast<const uptr>(wrapper), \
  26       reinterpret_cast<const uptr>(function) }
  27
  28 struct interpose_substitution {
  29   const uptr replacement;
  30   const uptr original;
  31 };
  32
  33 __attribute__((used))
  34 const interpose_substitution substitutions[]
  35     __attribute__((section("__DATA, __interpose"))) = {
  36   INTERPOSE_FUNCTION(strlen),
  37   INTERPOSE_FUNCTION(memcmp),
  38   INTERPOSE_FUNCTION(memcpy),
  39   INTERPOSE_FUNCTION(memmove),
  40   INTERPOSE_FUNCTION(memset),
  41   INTERPOSE_FUNCTION(strchr),
  42   INTERPOSE_FUNCTION(strcat),
  43   INTERPOSE_FUNCTION(strncat),
  44   INTERPOSE_FUNCTION(strcpy),
  45   INTERPOSE_FUNCTION(strncpy),
  46   INTERPOSE_FUNCTION(pthread_create),
  47   INTERPOSE_FUNCTION(longjmp),
  48 #if ASAN_INTERCEPT__LONGJMP
  49   INTERPOSE_FUNCTION(_longjmp),
  50 #endif
  51 #if ASAN_INTERCEPT_SIGLONGJMP
  52   INTERPOSE_FUNCTION(siglongjmp),
  53 #endif
  54 #if ASAN_INTERCEPT_STRDUP
  55   INTERPOSE_FUNCTION(strdup),
  56 #endif
  57 #if ASAN_INTERCEPT_STRNLEN
  58   INTERPOSE_FUNCTION(strnlen),
  59 #endif
  60 #if ASAN_INTERCEPT_INDEX
  61   INTERPOSE_FUNCTION_2(index, WRAP(strchr)),
  62 #endif
  63   INTERPOSE_FUNCTION(strcmp),
  64   INTERPOSE_FUNCTION(strncmp),
  65 #if ASAN_INTERCEPT_STRCASECMP_AND_STRNCASECMP
  66   INTERPOSE_FUNCTION(strcasecmp),
  67   INTERPOSE_FUNCTION(strncasecmp),
  68 #endif
  69   INTERPOSE_FUNCTION(atoi),
  70   INTERPOSE_FUNCTION(atol),
  71   INTERPOSE_FUNCTION(strtol),
  72 #if ASAN_INTERCEPT_ATOLL_AND_STRTOLL
  73   INTERPOSE_FUNCTION(atoll),
  74   INTERPOSE_FUNCTION(strtoll),
  75 #endif
  76 #if ASAN_INTERCEPT_MLOCKX
  77   INTERPOSE_FUNCTION(mlock),
  78   INTERPOSE_FUNCTION(munlock),
  79   INTERPOSE_FUNCTION(mlockall),
  80   INTERPOSE_FUNCTION(munlockall),
  81 #endif
  82   INTERPOSE_FUNCTION(dispatch_async_f),
  83   INTERPOSE_FUNCTION(dispatch_sync_f),
  84   INTERPOSE_FUNCTION(dispatch_after_f),
  85   INTERPOSE_FUNCTION(dispatch_barrier_async_f),
  86   INTERPOSE_FUNCTION(dispatch_group_async_f),
  87 #ifndef MISSING_BLOCKS_SUPPORT
  88   INTERPOSE_FUNCTION(dispatch_group_async),
  89   INTERPOSE_FUNCTION(dispatch_async),
  90   INTERPOSE_FUNCTION(dispatch_after),
  91   INTERPOSE_FUNCTION(dispatch_source_set_event_handler),
  92   INTERPOSE_FUNCTION(dispatch_source_set_cancel_handler),
  93 #endif
  94   INTERPOSE_FUNCTION(signal),
  95   INTERPOSE_FUNCTION(sigaction),
  96
  97   INTERPOSE_FUNCTION(malloc_create_zone),
  98   INTERPOSE_FUNCTION(malloc_default_zone),
  99   INTERPOSE_FUNCTION(malloc_default_purgeable_zone),
 100   INTERPOSE_FUNCTION(malloc_make_purgeable),
 101   INTERPOSE_FUNCTION(malloc_make_nonpurgeable),
 102   INTERPOSE_FUNCTION(malloc_set_zone_name),
 103   INTERPOSE_FUNCTION(malloc),
 104   INTERPOSE_FUNCTION(free),
 105   INTERPOSE_FUNCTION(realloc),
 106   INTERPOSE_FUNCTION(calloc),
 107   INTERPOSE_FUNCTION(valloc),
 108   INTERPOSE_FUNCTION(malloc_good_size),
 109   INTERPOSE_FUNCTION(posix_memalign),
 110 };
 111
 112 }  // namespace __asan
 113
 114 #endif  // __APPLE__