libsanitizer/asan/asan_win.cc

   1 //===-- asan_win.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 // Windows-specific details.
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "sanitizer_common/sanitizer_platform.h"
  14 #if SANITIZER_WINDOWS
  15 #include <windows.h>
  16
  17 #include <dbghelp.h>
  18 #include <stdlib.h>
  19
  20 #include "asan_interceptors.h"
  21 #include "asan_internal.h"
  22 #include "asan_thread.h"
  23 #include "sanitizer_common/sanitizer_libc.h"
  24 #include "sanitizer_common/sanitizer_mutex.h"
  25
  26 extern "C" {
  27   SANITIZER_INTERFACE_ATTRIBUTE
  28   int __asan_should_detect_stack_use_after_return() {
  29     __asan_init();
  30     return __asan_option_detect_stack_use_after_return;
  31   }
  32 }
  33
  34 namespace __asan {
  35
  36 // ---------------------- TSD ---------------- {{{1
  37 static bool tsd_key_inited = false;
  38
  39 static __declspec(thread) void *fake_tsd = 0;
  40
  41 void AsanTSDInit(void (*destructor)(void *tsd)) {
  42   // FIXME: we're ignoring the destructor for now.
  43   tsd_key_inited = true;
  44 }
  45
  46 void *AsanTSDGet() {
  47   CHECK(tsd_key_inited);
  48   return fake_tsd;
  49 }
  50
  51 void AsanTSDSet(void *tsd) {
  52   CHECK(tsd_key_inited);
  53   fake_tsd = tsd;
  54 }
  55
  56 void PlatformTSDDtor(void *tsd) {
  57   AsanThread::TSDDtor(tsd);
  58 }
  59 // ---------------------- Various stuff ---------------- {{{1
  60 void MaybeReexec() {
  61   // No need to re-exec on Windows.
  62 }
  63
  64 void *AsanDoesNotSupportStaticLinkage() {
  65 #if defined(_DEBUG)
  66 #error Please build the runtime with a non-debug CRT: /MD or /MT
  67 #endif
  68   return 0;
  69 }
  70
  71 void AsanCheckDynamicRTPrereqs() { UNIMPLEMENTED(); }
  72
  73 void AsanCheckIncompatibleRT() {}
  74
  75 void AsanPlatformThreadInit() {
  76   // Nothing here for now.
  77 }
  78
  79 void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
  80   UNIMPLEMENTED();
  81 }
  82
  83 void AsanOnSIGSEGV(int, void *siginfo, void *context) {
  84   UNIMPLEMENTED();
  85 }
  86
  87 }  // namespace __asan
  88
  89 #endif  // _WIN32