Move libFuzzer to compiler_rt.
Resulting library binaries will be named libclang_rt.fuzzer*, and will
be placed in Clang toolchain, allowing redistribution.
Differential Revision: https://reviews.llvm.org/D36908
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/fuzzer@311407 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/FuzzerUtilWindows.cpp b/FuzzerUtilWindows.cpp
new file mode 100644
index 0000000..25ac976
--- /dev/null
+++ b/FuzzerUtilWindows.cpp
@@ -0,0 +1,193 @@
+//===- FuzzerUtilWindows.cpp - Misc utils for Windows. --------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// Misc utils implementation for Windows.
+//===----------------------------------------------------------------------===//
+#include "FuzzerDefs.h"
+#if LIBFUZZER_WINDOWS
+#include "FuzzerIO.h"
+#include "FuzzerInternal.h"
+#include <cassert>
+#include <chrono>
+#include <cstring>
+#include <errno.h>
+#include <iomanip>
+#include <signal.h>
+#include <sstream>
+#include <stdio.h>
+#include <sys/types.h>
+#include <windows.h>
+
+// This must be included after windows.h.
+#include <Psapi.h>
+
+namespace fuzzer {
+
+static const FuzzingOptions* HandlerOpt = nullptr;
+
+static LONG CALLBACK ExceptionHandler(PEXCEPTION_POINTERS ExceptionInfo) {
+ switch (ExceptionInfo->ExceptionRecord->ExceptionCode) {
+ case EXCEPTION_ACCESS_VIOLATION:
+ case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
+ case EXCEPTION_STACK_OVERFLOW:
+ if (HandlerOpt->HandleSegv)
+ Fuzzer::StaticCrashSignalCallback();
+ break;
+ case EXCEPTION_DATATYPE_MISALIGNMENT:
+ case EXCEPTION_IN_PAGE_ERROR:
+ if (HandlerOpt->HandleBus)
+ Fuzzer::StaticCrashSignalCallback();
+ break;
+ case EXCEPTION_ILLEGAL_INSTRUCTION:
+ case EXCEPTION_PRIV_INSTRUCTION:
+ if (HandlerOpt->HandleIll)
+ Fuzzer::StaticCrashSignalCallback();
+ break;
+ case EXCEPTION_FLT_DENORMAL_OPERAND:
+ case EXCEPTION_FLT_DIVIDE_BY_ZERO:
+ case EXCEPTION_FLT_INEXACT_RESULT:
+ case EXCEPTION_FLT_INVALID_OPERATION:
+ case EXCEPTION_FLT_OVERFLOW:
+ case EXCEPTION_FLT_STACK_CHECK:
+ case EXCEPTION_FLT_UNDERFLOW:
+ case EXCEPTION_INT_DIVIDE_BY_ZERO:
+ case EXCEPTION_INT_OVERFLOW:
+ if (HandlerOpt->HandleFpe)
+ Fuzzer::StaticCrashSignalCallback();
+ break;
+ // TODO: handle (Options.HandleXfsz)
+ }
+ return EXCEPTION_CONTINUE_SEARCH;
+}
+
+BOOL WINAPI CtrlHandler(DWORD dwCtrlType) {
+ switch (dwCtrlType) {
+ case CTRL_C_EVENT:
+ if (HandlerOpt->HandleInt)
+ Fuzzer::StaticInterruptCallback();
+ return TRUE;
+ case CTRL_BREAK_EVENT:
+ if (HandlerOpt->HandleTerm)
+ Fuzzer::StaticInterruptCallback();
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void CALLBACK AlarmHandler(PVOID, BOOLEAN) {
+ Fuzzer::StaticAlarmCallback();
+}
+
+class TimerQ {
+ HANDLE TimerQueue;
+ public:
+ TimerQ() : TimerQueue(NULL) {};
+ ~TimerQ() {
+ if (TimerQueue)
+ DeleteTimerQueueEx(TimerQueue, NULL);
+ };
+ void SetTimer(int Seconds) {
+ if (!TimerQueue) {
+ TimerQueue = CreateTimerQueue();
+ if (!TimerQueue) {
+ Printf("libFuzzer: CreateTimerQueue failed.\n");
+ exit(1);
+ }
+ }
+ HANDLE Timer;
+ if (!CreateTimerQueueTimer(&Timer, TimerQueue, AlarmHandler, NULL,
+ Seconds*1000, Seconds*1000, 0)) {
+ Printf("libFuzzer: CreateTimerQueueTimer failed.\n");
+ exit(1);
+ }
+ };
+};
+
+static TimerQ Timer;
+
+static void CrashHandler(int) { Fuzzer::StaticCrashSignalCallback(); }
+
+void SetSignalHandler(const FuzzingOptions& Options) {
+ HandlerOpt = &Options;
+
+ if (Options.UnitTimeoutSec > 0)
+ Timer.SetTimer(Options.UnitTimeoutSec / 2 + 1);
+
+ if (Options.HandleInt || Options.HandleTerm)
+ if (!SetConsoleCtrlHandler(CtrlHandler, TRUE)) {
+ DWORD LastError = GetLastError();
+ Printf("libFuzzer: SetConsoleCtrlHandler failed (Error code: %lu).\n",
+ LastError);
+ exit(1);
+ }
+
+ if (Options.HandleSegv || Options.HandleBus || Options.HandleIll ||
+ Options.HandleFpe)
+ SetUnhandledExceptionFilter(ExceptionHandler);
+
+ if (Options.HandleAbrt)
+ if (SIG_ERR == signal(SIGABRT, CrashHandler)) {
+ Printf("libFuzzer: signal failed with %d\n", errno);
+ exit(1);
+ }
+}
+
+void SleepSeconds(int Seconds) { Sleep(Seconds * 1000); }
+
+unsigned long GetPid() { return GetCurrentProcessId(); }
+
+size_t GetPeakRSSMb() {
+ PROCESS_MEMORY_COUNTERS info;
+ if (!GetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info)))
+ return 0;
+ return info.PeakWorkingSetSize >> 20;
+}
+
+FILE *OpenProcessPipe(const char *Command, const char *Mode) {
+ return _popen(Command, Mode);
+}
+
+int ExecuteCommand(const std::string &Command) {
+ return system(Command.c_str());
+}
+
+const void *SearchMemory(const void *Data, size_t DataLen, const void *Patt,
+ size_t PattLen) {
+ // TODO: make this implementation more efficient.
+ const char *Cdata = (const char *)Data;
+ const char *Cpatt = (const char *)Patt;
+
+ if (!Data || !Patt || DataLen == 0 || PattLen == 0 || DataLen < PattLen)
+ return NULL;
+
+ if (PattLen == 1)
+ return memchr(Data, *Cpatt, DataLen);
+
+ const char *End = Cdata + DataLen - PattLen + 1;
+
+ for (const char *It = Cdata; It < End; ++It)
+ if (It[0] == Cpatt[0] && memcmp(It, Cpatt, PattLen) == 0)
+ return It;
+
+ return NULL;
+}
+
+std::string DisassembleCmd(const std::string &FileName) {
+ if (ExecuteCommand("dumpbin /summary > nul") == 0)
+ return "dumpbin /disasm " + FileName;
+ Printf("libFuzzer: couldn't find tool to disassemble (dumpbin)\n");
+ exit(1);
+}
+
+std::string SearchRegexCmd(const std::string &Regex) {
+ return "findstr /r \"" + Regex + "\"";
+}
+
+} // namespace fuzzer
+
+#endif // LIBFUZZER_WINDOWS