1  //=-- lsan.h --------------------------------------------------------------===//
       2  //
       3  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
       4  // See https://llvm.org/LICENSE.txt for license information.
       5  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
       6  //
       7  //===----------------------------------------------------------------------===//
       8  //
       9  // This file is a part of LeakSanitizer.
      10  // Private header for standalone LSan RTL.
      11  //
      12  //===----------------------------------------------------------------------===//
      13  
      14  #include "lsan_thread.h"
      15  #if SANITIZER_POSIX
      16  #  include "lsan_posix.h"
      17  #elif SANITIZER_FUCHSIA
      18  #  include "lsan_fuchsia.h"
      19  #endif
      20  #include "sanitizer_common/sanitizer_flags.h"
      21  #include "sanitizer_common/sanitizer_stacktrace.h"
      22  
      23  #define GET_STACK_TRACE(max_size, fast)                                        \
      24    __sanitizer::BufferedStackTrace stack;                                       \
      25    stack.Unwind(StackTrace::GetCurrentPc(), GET_CURRENT_FRAME(), nullptr, fast, \
      26                 max_size);
      27  
      28  #define GET_STACK_TRACE_FATAL \
      29    GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_fatal)
      30  
      31  #define GET_STACK_TRACE_MALLOC                                      \
      32    GET_STACK_TRACE(__sanitizer::common_flags()->malloc_context_size, \
      33                    common_flags()->fast_unwind_on_malloc)
      34  
      35  #define GET_STACK_TRACE_THREAD GET_STACK_TRACE(kStackTraceMax, true)
      36  
      37  namespace __lsan {
      38  
      39  void InitializeInterceptors();
      40  void ReplaceSystemMalloc();
      41  void LsanOnDeadlySignal(int signo, void *siginfo, void *context);
      42  void InstallAtExitCheckLeaks();
      43  
      44  #define ENSURE_LSAN_INITED        \
      45    do {                            \
      46      CHECK(!lsan_init_is_running); \
      47      if (!lsan_inited)             \
      48        __lsan_init();              \
      49    } while (0)
      50  
      51  }  // namespace __lsan
      52  
      53  extern bool lsan_inited;
      54  extern bool lsan_init_is_running;
      55  
      56  extern "C" SANITIZER_INTERFACE_ATTRIBUTE void __lsan_init();