luau/fuzz/CMakeLists.txt
Bjorn a775bbc6fc
Fix confusing warning when CMake version is too low (#1251)
Experienced brief moment of panic when this warning said I had clang 3
installed.
2024-05-10 03:36:37 -07:00

108 lines
4.5 KiB
CMake

# This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
if(${CMAKE_VERSION} VERSION_LESS "3.26")
message(WARNING "Building the Luau fuzzer requires CMake version 3.26 or higher.")
return()
endif()
include(FetchContent)
cmake_policy(SET CMP0054 NEW)
cmake_policy(SET CMP0058 NEW)
cmake_policy(SET CMP0074 NEW)
cmake_policy(SET CMP0077 NEW)
cmake_policy(SET CMP0091 NEW)
if(NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
message(WARNING "Building the Luau fuzzer requires Clang to be used. AppleClang is not sufficient.")
return()
endif()
if(NOT CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64")
message(WARNING "Building the Luau fuzzer for ARM64 is currently unsupported.")
return()
endif()
# protobuf / std integer types vary based on platform; disable sign-compare
# warnings for portability.
set(FUZZ_COMPILE_OPTIONS ${LUAU_OPTIONS} -fsanitize=address,fuzzer -g2 -Wno-sign-compare)
set(FUZZ_LINK_OPTIONS ${LUAU_OPTIONS} -fsanitize=address,fuzzer)
FetchContent_Declare(
ProtobufMutator
GIT_REPOSITORY https://github.com/google/libprotobuf-mutator
GIT_TAG 212a7be1eb08e7f9c79732d2aab9b2097085d936
# libprotobuf-mutator unconditionally configures its examples, but this
# doesn't actually work with how we're building Protobuf from source. This
# patch disables configuration of the examples.
PATCH_COMMAND
git apply
--reverse
--check
--ignore-space-change
--ignore-whitespace
"${CMAKE_CURRENT_SOURCE_DIR}/libprotobuf-mutator-patch.patch"
||
git apply
--ignore-space-change
--ignore-whitespace
"${CMAKE_CURRENT_SOURCE_DIR}/libprotobuf-mutator-patch.patch"
)
FetchContent_Declare(
Protobuf
GIT_REPOSITORY https://github.com/protocolbuffers/protobuf.git
# Needs to match the Protobuf version that libprotobuf-mutator is written for, roughly.
GIT_TAG v22.3
GIT_SHALLOW ON
# libprotobuf-mutator will need to be able to find this at configuration
# time.
OVERRIDE_FIND_PACKAGE
)
set(protobuf_BUILD_TESTS OFF)
set(protobuf_BUILD_SHARED_LIBS OFF)
# libprotobuf-mutator relies on older module support.
set(protobuf_MODULE_COMPATIBLE ON)
find_package(Protobuf CONFIG REQUIRED)
# libprotobuf-mutator happily ignores CMP0077 because of its minimum version
# requirement. To override that, we set the policy default here.
set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
set(LIB_PROTO_MUTATOR_TESTING OFF)
FetchContent_MakeAvailable(ProtobufMutator)
# This patches around the fact that find_package isn't going to set the right
# values for libprotobuf-mutator to link against protobuf libraries.
target_link_libraries(protobuf-mutator-libfuzzer protobuf::libprotobuf)
target_link_libraries(protobuf-mutator protobuf::libprotobuf)
set(LUAU_PB_DIR ${CMAKE_CURRENT_BINARY_DIR}/protobuf)
set(LUAU_PB_SOURCES ${LUAU_PB_DIR}/luau.pb.cc ${LUAU_PB_DIR}/luau.pb.h)
add_custom_command(
OUTPUT ${LUAU_PB_SOURCES}
COMMAND ${CMAKE_COMMAND} -E make_directory ${LUAU_PB_DIR}
COMMAND $<TARGET_FILE:protobuf::protoc> ${CMAKE_CURRENT_SOURCE_DIR}/luau.proto --proto_path=${CMAKE_CURRENT_SOURCE_DIR} --cpp_out=${LUAU_PB_DIR}
DEPENDS protobuf::protoc ${CMAKE_CURRENT_SOURCE_DIR}/luau.proto
)
add_executable(Luau.Fuzz.Proto)
target_compile_options(Luau.Fuzz.Proto PRIVATE ${FUZZ_COMPILE_OPTIONS})
target_link_options(Luau.Fuzz.Proto PRIVATE ${FUZZ_LINK_OPTIONS})
target_compile_features(Luau.Fuzz.Proto PRIVATE cxx_std_17)
target_include_directories(Luau.Fuzz.Proto PRIVATE ${LUAU_PB_DIR} ${protobufmutator_SOURCE_DIR})
target_sources(Luau.Fuzz.Proto PRIVATE ${LUAU_PB_SOURCES} proto.cpp protoprint.cpp)
target_link_libraries(Luau.Fuzz.Proto PRIVATE protobuf::libprotobuf protobuf-mutator-libfuzzer protobuf-mutator Luau.Analysis Luau.Compiler Luau.Ast Luau.Config Luau.VM Luau.CodeGen)
set_target_properties(Luau.Fuzz.Proto PROPERTIES CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF OUTPUT_NAME fuzz-proto)
add_executable(Luau.Fuzz.ProtoTest)
target_compile_options(Luau.Fuzz.ProtoTest PRIVATE ${FUZZ_COMPILE_OPTIONS})
target_link_options(Luau.Fuzz.ProtoTest PRIVATE ${FUZZ_LINK_OPTIONS})
target_compile_features(Luau.Fuzz.ProtoTest PRIVATE cxx_std_17)
target_include_directories(Luau.Fuzz.ProtoTest PRIVATE ${LUAU_PB_DIR} ${protobufmutator_SOURCE_DIR})
target_sources(Luau.Fuzz.ProtoTest PRIVATE ${LUAU_PB_SOURCES} prototest.cpp protoprint.cpp)
target_link_libraries(Luau.Fuzz.ProtoTest PRIVATE protobuf::libprotobuf protobuf-mutator-libfuzzer protobuf-mutator)
set_target_properties(Luau.Fuzz.ProtoTest PROPERTIES CXX_STANDARD_REQUIRED ON CXX_EXTENSIONS OFF OUTPUT_NAME fuzz-prototest)