1 //===--- rtsan_assertions.h - Realtime Sanitizer ----------------*- C++ -*-===//
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 // Part of the RealtimeSanitizer runtime library
10 //
11 //===----------------------------------------------------------------------===//
12
13 #pragma once
14
15 #include "rtsan/rtsan.h"
16 #include "rtsan/rtsan_context.h"
17 #include "rtsan/rtsan_diagnostics.h"
18 #include "rtsan/rtsan_stats.h"
19 #include "rtsan/rtsan_suppressions.h"
20
21 #include "sanitizer_common/sanitizer_stacktrace.h"
22
23 namespace __rtsan {
24
25 template <typename OnViolationAction>
ExpectNotRealtime(Context & context,const DiagnosticsInfo & info,OnViolationAction && OnViolation)26 void ExpectNotRealtime(Context &context, const DiagnosticsInfo &info,
27 OnViolationAction &&OnViolation) {
28 CHECK(__rtsan_is_initialized());
29 if (context.InRealtimeContext() && !context.IsBypassed()) {
30 ScopedBypass sb{context};
31
32 if (IsFunctionSuppressed(info.func_name)) {
33 IncrementSuppressedCount();
34 return;
35 }
36
37 __sanitizer::BufferedStackTrace stack;
38
39 // We use the unwind_on_fatal flag here because of precedent with other
40 // sanitizers, this action is not necessarily fatal if halt_on_error=false
41 stack.Unwind(info.pc, info.bp, nullptr,
42 __sanitizer::common_flags()->fast_unwind_on_fatal);
43
44 if (IsStackTraceSuppressed(stack)) {
45 IncrementSuppressedCount();
46 return;
47 }
48
49 OnViolation(stack, info);
50 }
51 }
52
53 } // namespace __rtsan
54