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c8948855b6
This fixes linking problems on OSX. Unfortunately it turns out we need to use an instance of the ``fuzzer::ExternalFunctions`` object in several places so this commit also replaces all instances with a single global instance. It also turns out initializing a global ``fuzzer::ExternalFunctions`` before main is entered (i.e. letting the object be initialised by the global initializers) is not safe (on OSX the call to ``Printf()`` in the CTOR crashes if it is called from a global initializer) so we instead have a global ``fuzzer::ExternalFunctions*`` and initialize it inside ``FuzzerDriver()``. Multiple unit tests depend also depend on the ``fuzzer::ExternalFunctions*`` global so a ``main()`` function has been added that initializes it before running any tests. Differential Revision: http://reviews.llvm.org/D20943 llvm-svn: 272072
34 lines
1.0 KiB
C++
34 lines
1.0 KiB
C++
//===- FuzzerExtFunctions.h - Interface to external functions ---*- 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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// Defines an interface to (possibly optional) functions.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_FUZZER_EXT_FUNCTIONS_H
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#define LLVM_FUZZER_EXT_FUNCTIONS_H
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#include <stddef.h>
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#include <stdint.h>
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namespace fuzzer {
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struct ExternalFunctions {
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// Initialize function pointers. Functions that are not available will be set
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// to nullptr. Do not call this constructor before ``main()`` has been
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// entered.
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ExternalFunctions();
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#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN) \
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RETURN_TYPE(*NAME) FUNC_SIG = nullptr
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#include "FuzzerExtFunctions.def"
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#undef EXT_FUNC
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};
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} // namespace fuzzer
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#endif
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