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//===-- dfsan.h -------------------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is a part of DataFlowSanitizer.
//
// Private DFSan header.
//===----------------------------------------------------------------------===//
#ifndef DFSAN_H
#define DFSAN_H
#include "sanitizer_common/sanitizer_internal_defs.h"
#include "dfsan_platform.h"
using __sanitizer::uptr;
using __sanitizer::u16;
// Copy declarations from public sanitizer/dfsan_interface.h header here.
typedef u16 dfsan_label;
struct dfsan_label_info {
dfsan_label l1;
dfsan_label l2;
const char *desc;
void *userdata;
};
extern "C" {
void dfsan_add_label(dfsan_label label, void *addr, uptr size);
void dfsan_set_label(dfsan_label label, void *addr, uptr size);
dfsan_label dfsan_read_label(const void *addr, uptr size);
dfsan_label dfsan_union(dfsan_label l1, dfsan_label l2);
} // extern "C"
template <typename T>
void dfsan_set_label(dfsan_label label, T &data) { // NOLINT
dfsan_set_label(label, (void *)&data, sizeof(T));
}
namespace __dfsan {
void InitializeInterceptors();
inline dfsan_label *shadow_for(void *ptr) {
return (dfsan_label *) ((((uptr) ptr) & ShadowMask()) << 1);
}
inline const dfsan_label *shadow_for(const void *ptr) {
return shadow_for(const_cast<void *>(ptr));
}
struct Flags {
#define DFSAN_FLAG(Type, Name, DefaultValue, Description) Type Name;
#include "dfsan_flags.inc"
#undef DFSAN_FLAG
void SetDefaults();
};
extern Flags flags_data;
inline Flags &flags() {
return flags_data;
}
} // namespace __dfsan
#endif // DFSAN_H
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