1 files changed, 76 insertions, 0 deletions
diff --git a/lib/Fuzzer/FuzzerUtil.cpp b/lib/Fuzzer/FuzzerUtil.cpp
new file mode 100644
index 000000000000..e381c0406321
--- /dev/null
+++ b/lib/Fuzzer/FuzzerUtil.cpp
@@ -0,0 +1,76 @@
+//===- FuzzerUtil.cpp - Misc utils ----------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// Misc utils.
+//===----------------------------------------------------------------------===//
+
+#include "FuzzerInternal.h"
+#include <sstream>
+#include <iomanip>
+#include <sys/time.h>
+#include <cassert>
+#include <cstring>
+#include <signal.h>
+#include <unistd.h>
+
+namespace fuzzer {
+
+void Print(const Unit &v, const char *PrintAfter) {
+  for (auto x : v)
+    Printf("0x%x,", (unsigned) x);
+  Printf("%s", PrintAfter);
+}
+
+void PrintASCII(const Unit &U, const char *PrintAfter) {
+  for (auto X : U) {
+    if (isprint(X))
+      Printf("%c", X);
+    else
+      Printf("\\x%x", (unsigned)X);
+  }
+  Printf("%s", PrintAfter);
+}
+
+std::string Hash(const Unit &U) {
+  uint8_t Hash[kSHA1NumBytes];
+  ComputeSHA1(U.data(), U.size(), Hash);
+  std::stringstream SS;
+  for (int i = 0; i < kSHA1NumBytes; i++)
+    SS << std::hex << std::setfill('0') << std::setw(2) << (unsigned)Hash[i];
+  return SS.str();
+}
+
+static void AlarmHandler(int, siginfo_t *, void *) {
+  Fuzzer::StaticAlarmCallback();
+}
+
+void SetTimer(int Seconds) {
+  struct itimerval T {{Seconds, 0}, {Seconds, 0}};
+  Printf("SetTimer %d\n", Seconds);
+  int Res = setitimer(ITIMER_REAL, &T, nullptr);
+  assert(Res == 0);
+  struct sigaction sigact;
+  memset(&sigact, 0, sizeof(sigact));
+  sigact.sa_sigaction = AlarmHandler;
+  Res = sigaction(SIGALRM, &sigact, 0);
+  assert(Res == 0);
+}
+
+int NumberOfCpuCores() {
+  FILE *F = popen("nproc", "r");
+  int N = 0;
+  fscanf(F, "%d", &N);
+  fclose(F);
+  return N;
+}
+
+void ExecuteCommand(const std::string &Command) {
+  system(Command.c_str());
+}
+
+}  // namespace fuzzer