| 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_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 trampoline); |
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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 trampoline); |
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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)&TRAMPOLINE(func)) |
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| 37 | |
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| 38 | // dlvsym is a GNU extension supported by some other platforms. |
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| 39 | #if SANITIZER_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD |
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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)&TRAMPOLINE(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_GLIBC || SANITIZER_FREEBSD || SANITIZER_NETBSD |
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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_SOLARIS |
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| 54 | |
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