# ArduinoJson - arduinojson.org
# Copyright Benoit Blanchon 2014-2021
# MIT License

if(MSVC)
	add_compile_options(-D_CRT_SECURE_NO_WARNINGS)
endif()

add_executable(msgpack_reproducer
	msgpack_fuzzer.cpp
	reproducer.cpp
)
target_link_libraries(msgpack_reproducer
	ArduinoJson
)

add_executable(json_reproducer
	json_fuzzer.cpp
	reproducer.cpp
)
target_link_libraries(json_reproducer
	ArduinoJson
)

# Infer path of llvm-symbolizer from the path of clang
string(REPLACE "clang++" "llvm-symbolizer" LLVM_SYMBOLIZER ${CMAKE_CXX_COMPILER})

macro(add_fuzzer name mode)	
	set(FUZZER "${name}_${mode}_fuzzer")
	set(CORPUS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${name}_corpus")
	set(SEED_CORPUS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${name}_seed_corpus")
	add_executable("${FUZZER}"
		"${name}_fuzzer.cpp"
	)
	target_link_libraries("${FUZZER}"
		ArduinoJson
	)
	set_target_properties("${FUZZER}"
		PROPERTIES 
			COMPILE_FLAGS  
				"-fprofile-instr-generate -fcoverage-mapping -fsanitize=${mode},fuzzer -fno-sanitize-recover=all"
			LINK_FLAGS
				"-fprofile-instr-generate -fcoverage-mapping -fsanitize=${mode},fuzzer -fno-sanitize-recover=all"
	)

	add_test(
		NAME
			"${FUZZER}"
		COMMAND
			"${FUZZER}" "${CORPUS_DIR}" "${SEED_CORPUS_DIR}" -max_total_time=5 -timeout=1
	)

	set_tests_properties("${FUZZER}"
		PROPERTIES
			ENVIRONMENT
				ASAN_SYMBOLIZER_PATH=${LLVM_SYMBOLIZER}
			ENVIRONMENT
				LLVM_SYMBOLIZER_PATH=${LLVM_SYMBOLIZER}
			ENVIRONMENT
				MSAN_SYMBOLIZER_PATH=${LLVM_SYMBOLIZER}
			ENVIRONMENT
				UBSAN_SYMBOLIZER_PATH=${LLVM_SYMBOLIZER}
	)
endmacro()

if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 6)
	add_fuzzer(json address)
	add_fuzzer(json undefined)
	add_fuzzer(msgpack address)
	add_fuzzer(msgpack undefined)
endif()

if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7)
	# We're getting false positive with Clang 6
	add_fuzzer(json memory)
	add_fuzzer(msgpack memory)
endif()