Add segfault debugging to unit test binaries

Author: ianfixes

CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Refactored documentation
 - External libraries aren't forcibly installed via the Arduino binary (in `arduino_cmd_remote.rb`) if they appear to exist on disk already
 - `attachInterrupt` and `detachInterrupt` are now mocked instead of `_NOP`
+- Unit test binaries now run with debugging symbols and address sanitization, to help isolate the causes of segfaults
 
 ### Deprecated
 

lib/arduino_ci/cpp_library.rb

@@ -211,6 +211,12 @@ def build_for_test_with_configuration(test_file, aux_libraries, gcc_binary, ci_g
       File.delete(executable) if File.exist?(executable)
       args = [
         ["-std=c++0x", "-o", executable, "-DARDUINO=100"],
+        [ # Stuff to help with dynamic memory mishandling
+          "-g", "-O1",
+          "-fno-omit-frame-pointer",
+          "-fno-optimize-sibling-calls",
+          "-fsanitize=address"
+        ],
         test_args(aux_libraries, ci_gcc_config),
         cpp_files_libraries(aux_libraries),
         [test_file],