X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FFuzzer%2FFuzzerMain.cpp;h=c4dffb45d166af62643e0368e04239c4c11337c6;hb=d00bdb627b38ad63ad00bcfbd7dee28d704bfc3a;hp=9d4004e951d89907208c51cbe50708cff1966e42;hpb=556d1a3b80ddedf8d68bf1293fba755f688e83b7;p=oota-llvm.git

diff --git a/lib/Fuzzer/FuzzerMain.cpp b/lib/Fuzzer/FuzzerMain.cpp
index 9d4004e951d..c4dffb45d16 100644
--- a/lib/Fuzzer/FuzzerMain.cpp
+++ b/lib/Fuzzer/FuzzerMain.cpp
@@ -9,138 +9,12 @@
 // main() and flags.
 //===----------------------------------------------------------------------===//
 
+#include "FuzzerInterface.h"
 #include "FuzzerInternal.h"
 
-#include <climits>
-#include <cstring>
-#include <unistd.h>
-#include <iostream>
-
-// ASAN options:
-//   * don't dump the coverage to disk.
-//   * enable coverage by default.
-extern "C" const char *__asan_default_options() {
-  return "coverage_pcs=0:coverage=1";
-}
-
-// Program arguments.
-struct FlagDescription {
-  const char *Name;
-  const char *Description;
-  int   Default;
-  int   *Flag;
-};
-
-struct {
-#define FUZZER_FLAG(Type, Name, Default, Description) Type Name;
-#include "FuzzerFlags.def"
-#undef FUZZER_FLAG
-} Flags;
-
-static FlagDescription FlagDescriptions [] {
-#define FUZZER_FLAG(Type, Name, Default, Description) {#Name, Description, Default, &Flags.Name},
-#include "FuzzerFlags.def"
-#undef FUZZER_FLAG
-};
-
-static const size_t kNumFlags =
-    sizeof(FlagDescriptions) / sizeof(FlagDescriptions[0]);
-
-static std::vector<std::string> inputs;
-static const char *ProgName;
-
-static void PrintHelp() {
-  std::cerr << "Usage: " << ProgName
-            << " [-flag1=val1 [-flag2=val2 ...] ] [dir1 [dir2 ...] ]\n";
-  std::cerr << "\nFlags: (strictly in form -flag=value)\n";
-  size_t MaxFlagLen = 0;
-  for (size_t F = 0; F < kNumFlags; F++)
-    MaxFlagLen = std::max(strlen(FlagDescriptions[F].Name), MaxFlagLen);
-
-  for (size_t F = 0; F < kNumFlags; F++) {
-    const auto &D = FlagDescriptions[F];
-    std::cerr << "  " << D.Name;
-    for (size_t i = 0, n = MaxFlagLen - strlen(D.Name); i < n; i++)
-      std::cerr << " ";
-    std::cerr << "\t";
-    std::cerr << D.Default << "\t" << D.Description << "\n";
-  }
-}
-
-static const char *FlagValue(const char *Param, const char *Name) {
-  size_t Len = strlen(Name);
-  if (Param[0] == '-' && strstr(Param + 1, Name) == Param + 1 &&
-      Param[Len + 1] == '=')
-      return &Param[Len + 2];
-  return nullptr;
-}
-
-static bool ParseOneFlag(const char *Param) {
-  if (Param[0] != '-') return false;
-  for (size_t F = 0; F < kNumFlags; F++) {
-    const char *Name = FlagDescriptions[F].Name;
-    const char *Str = FlagValue(Param, Name);
-    if (Str)  {
-      int Val = std::stol(Str);
-      *FlagDescriptions[F].Flag = Val;
-      if (Flags.verbosity >= 2)
-        std::cerr << "Flag: " << Name << " " << Val << "\n";
-      return true;
-    }
-  }
-  PrintHelp();
-  exit(1);
-}
-
-// We don't use any library to minimize dependencies.
-static void ParseFlags(int argc, char **argv) {
-  for (size_t F = 0; F < kNumFlags; F++)
-    *FlagDescriptions[F].Flag = FlagDescriptions[F].Default;
-  for (int A = 1; A < argc; A++) {
-    if (ParseOneFlag(argv[A])) continue;
-    inputs.push_back(argv[A]);
-  }
-}
+// This function should be defined by the user.
+extern "C" void LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 
 int main(int argc, char **argv) {
-  using namespace fuzzer;
-
-  ProgName = argv[0];
-  ParseFlags(argc, argv);
-  if (Flags.help) {
-    PrintHelp();
-    return 0;
-  }
-  Fuzzer::FuzzingOptions Options;
-  Options.Verbosity = Flags.verbosity;
-  Options.MaxLen = Flags.max_len;
-  Options.DoCrossOver = Flags.cross_over;
-  Options.MutateDepth = Flags.mutate_depth;
-  Options.ExitOnFirst = Flags.exit_on_first;
-  if (!inputs.empty())
-    Options.OutputCorpus = inputs[0];
-  Fuzzer F(Options);
-
-  unsigned seed = Flags.seed;
-  // Initialize seed.
-  if (seed == 0)
-    seed = time(0) * 10000 + getpid();
-  if (Flags.verbosity)
-    std::cerr << "Seed: " << seed << "\n";
-  srand(seed);
-
-  // Timer
-  if (Flags.timeout > 0)
-    SetTimer(Flags.timeout);
-
-  for (auto &inp : inputs)
-    F.ReadDir(inp);
-
-  if (F.CorpusSize() == 0)
-    F.AddToCorpus(Unit());  // Can't fuzz empty corpus, so add an empty input.
-  F.ShuffleAndMinimize();
-  F.Loop(Flags.iterations < 0 ? INT_MAX : Flags.iterations);
-  if (Flags.verbosity)
-    std::cerr << "Done\n";
-  return 1;
+  return fuzzer::FuzzerDriver(argc, argv, LLVMFuzzerTestOneInput);
 }