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
llvm-svn: 311407
diff --git a/compiler-rt/lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp b/compiler-rt/lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp
new file mode 100644
index 0000000..321b3ec
--- /dev/null
+++ b/compiler-rt/lib/fuzzer/FuzzerExtFunctionsDlsymWin.cpp
@@ -0,0 +1,62 @@
+//===- 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"
+
+// This must be included after 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