| //===-- interception_linux.cc -----------------------------------*- C++ -*-===// |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file is a part of AddressSanitizer, an address sanity checker. |
| // |
| // Linux-specific interception methods. |
| //===----------------------------------------------------------------------===// |
| |
| #if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) |
| #include "interception.h" |
| |
| #include <dlfcn.h> // for dlsym() and dlvsym() |
| |
| #ifdef __NetBSD__ |
| #include "sanitizer_common/sanitizer_libc.h" |
| #endif |
| |
| namespace __interception { |
| bool GetRealFunctionAddress(const char *func_name, uptr *func_addr, |
| uptr real, uptr wrapper) { |
| #ifdef __NetBSD__ |
| // XXX: Find a better way to handle renames |
| if (internal_strcmp(func_name, "sigaction") == 0) func_name = "__sigaction14"; |
| #endif |
| *func_addr = (uptr)dlsym(RTLD_NEXT, func_name); |
| return real == wrapper; |
| } |
| |
| #if !defined(__ANDROID__) // android does not have dlvsym |
| void *GetFuncAddrVer(const char *func_name, const char *ver) { |
| return dlvsym(RTLD_NEXT, func_name, ver); |
| } |
| #endif // !defined(__ANDROID__) |
| |
| } // namespace __interception |
| |
| #endif // __linux__ || __FreeBSD__ || __NetBSD__ |
