libsanitizer/lsan/lsan.cc

   1 //=-- lsan.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 LeakSanitizer.
   9 // Standalone LSan RTL.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "lsan.h"
  14
  15 #include "sanitizer_common/sanitizer_flags.h"
  16 #include "sanitizer_common/sanitizer_stacktrace.h"
  17 #include "lsan_allocator.h"
  18 #include "lsan_common.h"
  19 #include "lsan_thread.h"
  20
  21 bool lsan_inited;
  22 bool lsan_init_is_running;
  23
  24 namespace __lsan {
  25
  26 ///// Interface to the common LSan module. /////
  27 bool WordIsPoisoned(uptr addr) {
  28   return false;
  29 }
  30
  31 }  // namespace __lsan
  32
  33 using namespace __lsan;  // NOLINT
  34
  35 extern "C" void __lsan_init() {
  36   CHECK(!lsan_init_is_running);
  37   if (lsan_inited)
  38     return;
  39   lsan_init_is_running = true;
  40   SanitizerToolName = "LeakSanitizer";
  41   InitCommonLsan(true);
  42   InitializeAllocator();
  43   InitTlsSize();
  44   InitializeInterceptors();
  45   InitializeThreadRegistry();
  46   u32 tid = ThreadCreate(0, 0, true);
  47   CHECK_EQ(tid, 0);
  48   ThreadStart(tid, GetTid());
  49   SetCurrentThread(tid);
  50
  51   if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit)
  52     Atexit(DoLeakCheck);
  53   lsan_inited = true;
  54   lsan_init_is_running = false;
  55 }
  56
  57 extern "C" SANITIZER_INTERFACE_ATTRIBUTE
  58 void __sanitizer_print_stack_trace() {
  59   GET_STACK_TRACE_FATAL;
  60   stack.Print();
  61 }