From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 19:32:43 +0200 Subject: Adding upstream version 1:115.7.0. Signed-off-by: Daniel Baumann --- tools/fuzzing/libfuzzer/FuzzerUtil.h | 111 +++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 tools/fuzzing/libfuzzer/FuzzerUtil.h (limited to 'tools/fuzzing/libfuzzer/FuzzerUtil.h') diff --git a/tools/fuzzing/libfuzzer/FuzzerUtil.h b/tools/fuzzing/libfuzzer/FuzzerUtil.h new file mode 100644 index 0000000000..4ae3583830 --- /dev/null +++ b/tools/fuzzing/libfuzzer/FuzzerUtil.h @@ -0,0 +1,111 @@ +//===- FuzzerUtil.h - Internal header for the Fuzzer Utils ------*- C++ -* ===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// Util functions. +//===----------------------------------------------------------------------===// + +#ifndef LLVM_FUZZER_UTIL_H +#define LLVM_FUZZER_UTIL_H + +#include "FuzzerBuiltins.h" +#include "FuzzerBuiltinsMsvc.h" +#include "FuzzerCommand.h" +#include "FuzzerDefs.h" + +namespace fuzzer { + +void PrintHexArray(const Unit &U, const char *PrintAfter = ""); + +void PrintHexArray(const uint8_t *Data, size_t Size, + const char *PrintAfter = ""); + +void PrintASCII(const uint8_t *Data, size_t Size, const char *PrintAfter = ""); + +void PrintASCII(const Unit &U, const char *PrintAfter = ""); + +// Changes U to contain only ASCII (isprint+isspace) characters. +// Returns true iff U has been changed. +bool ToASCII(uint8_t *Data, size_t Size); + +bool IsASCII(const Unit &U); + +bool IsASCII(const uint8_t *Data, size_t Size); + +std::string Base64(const Unit &U); + +void PrintPC(const char *SymbolizedFMT, const char *FallbackFMT, uintptr_t PC); + +std::string DescribePC(const char *SymbolizedFMT, uintptr_t PC); + +void PrintStackTrace(); + +void PrintMemoryProfile(); + +unsigned NumberOfCpuCores(); + +// Platform specific functions. +void SetSignalHandler(const FuzzingOptions& Options); + +void SleepSeconds(int Seconds); + +unsigned long GetPid(); + +size_t GetPeakRSSMb(); + +int ExecuteCommand(const Command &Cmd); +bool ExecuteCommand(const Command &Cmd, std::string *CmdOutput); + +// Fuchsia does not have popen/pclose. +FILE *OpenProcessPipe(const char *Command, const char *Mode); +int CloseProcessPipe(FILE *F); + +const void *SearchMemory(const void *haystack, size_t haystacklen, + const void *needle, size_t needlelen); + +std::string CloneArgsWithoutX(const Vector &Args, + const char *X1, const char *X2); + +inline std::string CloneArgsWithoutX(const Vector &Args, + const char *X) { + return CloneArgsWithoutX(Args, X, X); +} + +inline std::pair SplitBefore(std::string X, + std::string S) { + auto Pos = S.find(X); + if (Pos == std::string::npos) + return std::make_pair(S, ""); + return std::make_pair(S.substr(0, Pos), S.substr(Pos)); +} + +void DiscardOutput(int Fd); + +std::string DisassembleCmd(const std::string &FileName); + +std::string SearchRegexCmd(const std::string &Regex); + +size_t SimpleFastHash(const uint8_t *Data, size_t Size); + +inline uint32_t Log(uint32_t X) { return 32 - Clz(X) - 1; } + +inline size_t PageSize() { return 4096; } +inline uint8_t *RoundUpByPage(uint8_t *P) { + uintptr_t X = reinterpret_cast(P); + size_t Mask = PageSize() - 1; + X = (X + Mask) & ~Mask; + return reinterpret_cast(X); +} +inline uint8_t *RoundDownByPage(uint8_t *P) { + uintptr_t X = reinterpret_cast(P); + size_t Mask = PageSize() - 1; + X = X & ~Mask; + return reinterpret_cast(X); +} + +} // namespace fuzzer + +#endif // LLVM_FUZZER_UTIL_H -- cgit v1.2.3