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1 //===-- interception_linux.h ------------------------------------*- C++ -*-===//
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2 //
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3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 // See https://llvm.org/LICENSE.txt for license information.
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5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 //
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7 //===----------------------------------------------------------------------===//
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8 //
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9 // This file is a part of AddressSanitizer, an address sanity checker.
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10 //
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11 // Linux-specific interception methods.
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12 //===----------------------------------------------------------------------===//
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13
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14 #if SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD || \
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15 SANITIZER_OPENBSD || SANITIZER_SOLARIS
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16
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17 #if !defined(INCLUDED_FROM_INTERCEPTION_LIB)
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18 # error "interception_linux.h should be included from interception library only"
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19 #endif
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20
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21 #ifndef INTERCEPTION_LINUX_H
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22 #define INTERCEPTION_LINUX_H
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23
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24 namespace __interception {
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25 bool InterceptFunction(const char *name, uptr *ptr_to_real, uptr func,
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26 uptr wrapper);
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27 bool InterceptFunction(const char *name, const char *ver, uptr *ptr_to_real,
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28 uptr func, uptr wrapper);
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29 } // namespace __interception
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30
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31 #define INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func) \
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32 ::__interception::InterceptFunction( \
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33 #func, \
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34 (::__interception::uptr *) & REAL(func), \
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35 (::__interception::uptr) & (func), \
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36 (::__interception::uptr) & WRAP(func))
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37
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38 // Android, Solaris and OpenBSD do not have dlvsym
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39 #if !SANITIZER_ANDROID && !SANITIZER_SOLARIS && !SANITIZER_OPENBSD
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40 #define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \
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41 ::__interception::InterceptFunction( \
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42 #func, symver, \
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43 (::__interception::uptr *) & REAL(func), \
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44 (::__interception::uptr) & (func), \
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45 (::__interception::uptr) & WRAP(func))
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46 #else
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47 #define INTERCEPT_FUNCTION_VER_LINUX_OR_FREEBSD(func, symver) \
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48 INTERCEPT_FUNCTION_LINUX_OR_FREEBSD(func)
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49 #endif // !SANITIZER_ANDROID && !SANITIZER_SOLARIS
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50
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51 #endif // INTERCEPTION_LINUX_H
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52 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD || SANITIZER_NETBSD ||
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53 // SANITIZER_OPENBSD || SANITIZER_SOLARIS
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