Bug 1365994 - Update libfuzzer r=decoder

MozReview-Commit-ID: GCwIIZd5PTS *** 1365994 - update moz.build for libfuzzer MozReview-Commit-ID: IxbLnviJC08
2017-05-18 10:23:05 -07:00
parent 5c5e3b8e4c
commit 5ebee3ca5d
44 changed files with 2843 additions and 1038 deletions
--- a/tools/fuzzing/libfuzzer/FuzzerExtFunctionsDlsymWin.cpp
+++ b/tools/fuzzing/libfuzzer/FuzzerExtFunctionsDlsymWin.cpp
@@ -0,0 +1,60 @@
+//===- FuzzerExtFunctionsDlsymWin.cpp - Interface to external functions ---===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+// Implementation using dynamic loading for Windows.
+//===----------------------------------------------------------------------===//
+#include "FuzzerDefs.h"
+#if LIBFUZZER_WINDOWS
+
+#include "FuzzerExtFunctions.h"
+#include "FuzzerIO.h"
+#include "Windows.h"
+#include "Psapi.h"
+
+namespace fuzzer {
+
+ExternalFunctions::ExternalFunctions() {
+  HMODULE Modules[1024];
+  DWORD BytesNeeded;
+  HANDLE CurrentProcess = GetCurrentProcess();
+
+  if (!EnumProcessModules(CurrentProcess, Modules, sizeof(Modules),
+                          &BytesNeeded)) {
+    Printf("EnumProcessModules failed (error: %d).\n", GetLastError());
+    exit(1);
+  }
+
+  if (sizeof(Modules) < BytesNeeded) {
+    Printf("Error: the array is not big enough to hold all loaded modules.\n");
+    exit(1);
+  }
+
+  for (size_t i = 0; i < (BytesNeeded / sizeof(HMODULE)); i++)
+  {
+    FARPROC Fn;
+#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN)                            \
+    if (this->NAME == nullptr) {                                               \
+      Fn = GetProcAddress(Modules[i], #NAME);                                  \
+      if (Fn == nullptr)                                                       \
+         Fn = GetProcAddress(Modules[i], #NAME "__dll");                       \
+      this->NAME = (decltype(ExternalFunctions::NAME)) Fn;                     \
+    }
+#include "FuzzerExtFunctions.def"
+#undef EXT_FUNC
+  }
+
+#define EXT_FUNC(NAME, RETURN_TYPE, FUNC_SIG, WARN)                            \
+  if (this->NAME == nullptr && WARN)                                           \
+    Printf("WARNING: Failed to find function \"%s\".\n", #NAME);
+#include "FuzzerExtFunctions.def"
+#undef EXT_FUNC
+}
+
+} // namespace fuzzer
+
+#endif // LIBFUZZER_WINDOWS