1//===-- dfsan.h -------------------------------------------------*- C++ -*-===//
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 DataFlowSanitizer.
11//
12// Private DFSan header.
13//===----------------------------------------------------------------------===//
14
15#ifndef DFSAN_H
16#define DFSAN_H
17
18#include "sanitizer_common/sanitizer_internal_defs.h"
19#include "dfsan_platform.h"
20
21// Copy declarations from public sanitizer/dfsan_interface.h header here.
22typedef u16 dfsan_label;
23
24struct dfsan_label_info {
25  dfsan_label l1;
26  dfsan_label l2;
27  const char *desc;
28  void *userdata;
29};
30
31extern "C" {
32void dfsan_add_label(dfsan_label label, void *addr, uptr size);
33void dfsan_set_label(dfsan_label label, void *addr, uptr size);
34dfsan_label dfsan_read_label(const void *addr, uptr size);
35dfsan_label dfsan_union(dfsan_label l1, dfsan_label l2);
36}  // extern "C"
37
38template <typename T>
39void dfsan_set_label(dfsan_label label, T &data) {  // NOLINT
40  dfsan_set_label(label, (void *)&data, sizeof(T));
41}
42
43namespace __dfsan {
44
45void InitializeInterceptors();
46
47inline dfsan_label *shadow_for(void *ptr) {
48  return (dfsan_label *) ((((uptr) ptr) & ShadowMask()) << 1);
49}
50
51inline const dfsan_label *shadow_for(const void *ptr) {
52  return shadow_for(const_cast<void *>(ptr));
53}
54
55struct Flags {
56#define DFSAN_FLAG(Type, Name, DefaultValue, Description) Type Name;
57#include "dfsan_flags.inc"
58#undef DFSAN_FLAG
59
60  void SetDefaults();
61};
62
63extern Flags flags_data;
64inline Flags &flags() {
65  return flags_data;
66}
67
68}  // namespace __dfsan
69
70#endif  // DFSAN_H
71