70a3511bd5
Summary: Part of the code inspired by the original work on libsanitizer in GCC 5.4 by Christos Zoulas. Sponsored by <The NetBSD Foundation> Reviewers: joerg, kcc, vitalybuka, filcab Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D36321 llvm-svn: 310351
44 lines
1.4 KiB
C++
44 lines
1.4 KiB
C++
//===-- interception_linux.cc -----------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of AddressSanitizer, an address sanity checker.
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//
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// Linux-specific interception methods.
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//===----------------------------------------------------------------------===//
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#if defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__)
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#include "interception.h"
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#include <dlfcn.h> // for dlsym() and dlvsym()
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#ifdef __NetBSD__
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#include "sanitizer_common/sanitizer_libc.h"
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#endif
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namespace __interception {
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bool GetRealFunctionAddress(const char *func_name, uptr *func_addr,
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uptr real, uptr wrapper) {
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#ifdef __NetBSD__
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// XXX: Find a better way to handle renames
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if (internal_strcmp(func_name, "sigaction") == 0) func_name = "__sigaction14";
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#endif
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*func_addr = (uptr)dlsym(RTLD_NEXT, func_name);
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return real == wrapper;
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}
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#if !defined(__ANDROID__) // android does not have dlvsym
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void *GetFuncAddrVer(const char *func_name, const char *ver) {
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return dlvsym(RTLD_NEXT, func_name, ver);
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}
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#endif // !defined(__ANDROID__)
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} // namespace __interception
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#endif // __linux__ || __FreeBSD__ || __NetBSD__
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