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 
43 #define ENSURE_LSAN_INITED        \
44   do {                            \
45     CHECK(!lsan_init_is_running); \
46     if (!lsan_inited)             \
47       __lsan_init();              \
48   } while (0)
49 
50 }  // namespace __lsan
51 
52 extern bool lsan_inited;
53 extern bool lsan_init_is_running;
54 
55 extern "C" SANITIZER_INTERFACE_ATTRIBUTE void __lsan_init();
56