lib/asan/asan_win.cc

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