fuzzer_initialize.cpp source code [clang_source_code/tools/clang-fuzzer/fuzzer-initialize/fuzzer

1	//===-- fuzzer_initialize.cpp - Fuzz Clang --------------------------------===//
2	//
3	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4	// See https://llvm.org/LICENSE.txt for license information.
5	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6	//
7	//===----------------------------------------------------------------------===//
8	///
9	/// \file
10	/// This file implements two functions: one that returns the command line
11	/// arguments for a given call to the fuzz target and one that initializes
12	/// the fuzzer with the correct command line arguments.
13	///
14	//===----------------------------------------------------------------------===//
15
16	#include "fuzzer_initialize.h"
17
18	#include "llvm/InitializePasses.h"
19	#include "llvm/PassRegistry.h"
20	#include "llvm/Support/TargetSelect.h"
21	#include <cstring>
22
23	using namespace clang_fuzzer;
24	using namespace llvm;
25
26
27	namespace clang_fuzzer {
28
29	static std::vector<const char *> CLArgs;
30
31	const std::vector<const char *>& GetCLArgs() {
32	return CLArgs;
33	}
34
35	}
36
37	extern "C" int LLVMFuzzerInitialize(int argc, char **argv) {
38	InitializeAllTargets();
39	InitializeAllTargetMCs();
40	InitializeAllAsmPrinters();
41	InitializeAllAsmParsers();
42
43	PassRegistry &Registry = *PassRegistry::getPassRegistry();
44	initializeCore(Registry);
45	initializeScalarOpts(Registry);
46	initializeVectorization(Registry);
47	initializeIPO(Registry);
48	initializeAnalysis(Registry);
49	initializeTransformUtils(Registry);
50	initializeInstCombine(Registry);
51	initializeAggressiveInstCombine(Registry);
52	initializeInstrumentation(Registry);
53	initializeTarget(Registry);
54
55	CLArgs.push_back("-O2");
56	for (int I = 1; I < *argc; I++) {
57	if (strcmp((*argv)[I], "-ignore_remaining_args=1") == 0) {
58	for (I++; I < *argc; I++)
59	CLArgs.push_back((*argv)[I]);
60	break;
61	}
62	}
63	return 0;
64	}
65

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