Introduce 'safemain' library (#2300)

This commit introduces 'safemain' library which provides 'main' function
that captures std::exception on RELEASE build.

Signed-off-by: Jonghyun Park <jh1302.park@samsung.com>

diff --git a/contrib/safemain/CMakeLists.txt b/contrib/safemain/CMakeLists.txt
new file mode 100644 (file)
index 0000000..c73306a
--- /dev/null
+++ b/contrib/safemain/CMakeLists.txt
@@ -0,0 +1,2 @@
+add_library(safemain STATIC SafeMain.cpp)
+set_target_properties(safemain PROPERTIES POSITION_INDEPENDENT_CODE ON)

diff --git a/contrib/safemain/SafeMain.cpp b/contrib/safemain/SafeMain.cpp
new file mode 100644 (file)
index 0000000..fc0fc96
--- /dev/null
+++ b/contrib/safemain/SafeMain.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <iostream>
+#include <stdexcept>
+
+int entry(int argc, char **argv);
+
+#ifdef NDEBUG
+int main(int argc, char **argv)
+{
+  try
+  {
+    return entry(argc, argv);
+  }
+  catch (const std::exception &e)
+  {
+    std::cerr << "ERROR: " << e.what() << std::endl;
+  }
+
+  return 255;
+}
+#else  // NDEBUG
+int main(int argc, char **argv)
+{
+  // NOTE main does not catch internal exceptions for debug build to make it easy to
+  //      check the stacktrace with a debugger
+  return entry(argc, argv);
+}
+#endif // !NDEBUG