1 //===- FuzzerUtil.h - Internal header for the Fuzzer Utils ------*- C++ -* ===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 //===----------------------------------------------------------------------===//
12 #ifndef LLVM_FUZZER_UTIL_H
13 #define LLVM_FUZZER_UTIL_H
15 #include "FuzzerDefs.h"
16 #include "FuzzerCommand.h"
20 void PrintHexArray(const Unit &U, const char *PrintAfter = "");
22 void PrintHexArray(const uint8_t *Data, size_t Size,
23 const char *PrintAfter = "");
25 void PrintASCII(const uint8_t *Data, size_t Size, const char *PrintAfter = "");
27 void PrintASCII(const Unit &U, const char *PrintAfter = "");
29 // Changes U to contain only ASCII (isprint+isspace) characters.
30 // Returns true iff U has been changed.
31 bool ToASCII(uint8_t *Data, size_t Size);
33 bool IsASCII(const Unit &U);
35 bool IsASCII(const uint8_t *Data, size_t Size);
37 std::string Base64(const Unit &U);
39 void PrintPC(const char *SymbolizedFMT, const char *FallbackFMT, uintptr_t PC);
41 std::string DescribePC(const char *SymbolizedFMT, uintptr_t PC);
43 void PrintStackTrace();
45 void PrintMemoryProfile();
47 unsigned NumberOfCpuCores();
49 // Platform specific functions.
50 void SetSignalHandler(const FuzzingOptions& Options);
52 void SleepSeconds(int Seconds);
54 unsigned long GetPid();
56 size_t GetPeakRSSMb();
58 int ExecuteCommand(const Command &Cmd);
60 FILE *OpenProcessPipe(const char *Command, const char *Mode);
62 const void *SearchMemory(const void *haystack, size_t haystacklen,
63 const void *needle, size_t needlelen);
65 std::string CloneArgsWithoutX(const Vector<std::string> &Args,
66 const char *X1, const char *X2);
68 inline std::string CloneArgsWithoutX(const Vector<std::string> &Args,
70 return CloneArgsWithoutX(Args, X, X);
73 inline std::pair<std::string, std::string> SplitBefore(std::string X,
76 if (Pos == std::string::npos)
77 return std::make_pair(S, "");
78 return std::make_pair(S.substr(0, Pos), S.substr(Pos));
81 std::string DisassembleCmd(const std::string &FileName);
83 std::string SearchRegexCmd(const std::string &Regex);
85 size_t SimpleFastHash(const uint8_t *Data, size_t Size);
87 inline uint32_t Log(uint32_t X) { return 32 - __builtin_clz(X) - 1; }
91 #endif // LLVM_FUZZER_UTIL_H