Bug 1530773 - Add log module and macro for fuzzing. r=froydnj

Differential Revision: https://phabricator.services.mozilla.com/D21251

--HG--
extra : moz-landing-system : lando

tools/fuzzing/interface/FuzzingInterface.cpp

@@ -0,0 +1,16 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Common code for the unified fuzzing interface
+ */
+
+#include "FuzzingInterface.h"
+
+namespace mozilla {
+
+LazyLogModule gFuzzingLog("nsFuzzing");
+
+} // namespace mozilla

tools/fuzzing/interface/FuzzingInterface.h

@@ -14,9 +14,15 @@
 
 #include "FuzzerRegistry.h"
 #include "mozilla/Assertions.h"
+#include "mozilla/Logging.h"
 
 namespace mozilla {
 
+extern LazyLogModule gFuzzingLog;
+
+#define FUZZING_LOG(args) \
+  MOZ_LOG(mozilla::gFuzzingLog, mozilla::LogLevel::Verbose, args)
+
 typedef int (*FuzzingTestFuncRaw)(const uint8_t*, size_t);
 
 #ifdef __AFL_COMPILER

tools/fuzzing/interface/moz.build

@@ -10,6 +10,10 @@ EXPORTS += [
     'FuzzingInterface.h',
 ]
 
+SOURCES += [
+    'FuzzingInterface.cpp',
+]
+
 if CONFIG['JS_STANDALONE']:
     FINAL_LIBRARY = "js"
 else: