Initial wasm simulator checkpoint

core/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.20)
+project(cnc_sim_wasm_core LANGUAGES CXX)
+
+option(CNC_SIM_ENABLE_LINUXCNC_BRIDGE "Build the experimental LinuxCNC canon bridge" OFF)
+option(CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND "Build the native LinuxCNC librs274 backend" OFF)
+set(CNC_SIM_LINUXCNC_ROOT "" CACHE PATH "LinuxCNC source root for the experimental bridge")
+
+set(cnc_sim_core_sources
+    src/canon_event_sink.cpp
+    src/cnc_sim_api.cpp
+    src/gcode_backend.cpp
+    src/rtcp_kinematics.cpp
+    src/simulator_gcode_controls.cpp
+    src/smoke_gcode_parser.cpp
+)
+
+if(CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND)
+    if(EMSCRIPTEN)
+        message(FATAL_ERROR "CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND is native-only; it links LinuxCNC librs274")
+    endif()
+    if(NOT CNC_SIM_LINUXCNC_ROOT)
+        message(FATAL_ERROR "Set CNC_SIM_LINUXCNC_ROOT to the LinuxCNC source root")
+    endif()
+    list(APPEND cnc_sim_core_sources
+        src/linuxcnc_canon_bridge.cpp
+        src/linuxcnc_rs274_backend.cpp
+    )
+endif()
+
+add_library(cnc_sim_objects OBJECT
+    ${cnc_sim_core_sources}
+)
+
+target_include_directories(cnc_sim_objects
+    PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/include
+    PRIVATE
+        ${CMAKE_CURRENT_SOURCE_DIR}/src
+)
+
+target_compile_features(cnc_sim_objects PUBLIC cxx_std_17)
+
+if(CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND)
+    find_package(Python3 REQUIRED COMPONENTS Development)
+    target_compile_definitions(cnc_sim_objects
+        PRIVATE
+            CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND
+    )
+    target_include_directories(cnc_sim_objects
+        PRIVATE
+            ${Python3_INCLUDE_DIRS}
+            ${CNC_SIM_LINUXCNC_ROOT}/src
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc/nml_intf
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc/rs274ngc
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc/motion
+            ${CNC_SIM_LINUXCNC_ROOT}/include
+    )
+endif()
+
+add_library(cnc_sim_core STATIC
+    $<TARGET_OBJECTS:cnc_sim_objects>
+)
+
+target_include_directories(cnc_sim_core
+    PUBLIC
+        ${CMAKE_CURRENT_SOURCE_DIR}/include
+    PRIVATE
+        ${CMAKE_CURRENT_SOURCE_DIR}/src
+)
+
+if(CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND)
+    target_link_directories(cnc_sim_core
+        PUBLIC
+            ${CNC_SIM_LINUXCNC_ROOT}/lib
+    )
+    target_link_libraries(cnc_sim_core
+        PUBLIC
+            rs274
+            tooldata
+            Python3::Python
+    )
+    target_link_options(cnc_sim_core
+        PUBLIC
+            "-Wl,-rpath,${CNC_SIM_LINUXCNC_ROOT}/lib"
+    )
+endif()
+
+if(NOT EMSCRIPTEN)
+    add_executable(cnc_sim_api_smoke
+        tests/cnc_sim_api_smoke.cpp
+    )
+    target_link_libraries(cnc_sim_api_smoke PRIVATE cnc_sim_core)
+    target_include_directories(cnc_sim_api_smoke PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+    add_executable(canon_event_sink_smoke
+        tests/canon_event_sink_smoke.cpp
+    )
+    target_link_libraries(canon_event_sink_smoke PRIVATE cnc_sim_core)
+    target_include_directories(canon_event_sink_smoke PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+    add_executable(rtcp_kinematics_smoke
+        tests/rtcp_kinematics_smoke.cpp
+    )
+    target_link_libraries(rtcp_kinematics_smoke PRIVATE cnc_sim_core)
+    target_include_directories(rtcp_kinematics_smoke PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+    add_executable(simulator_gcode_controls_smoke
+        tests/simulator_gcode_controls_smoke.cpp
+    )
+    target_link_libraries(simulator_gcode_controls_smoke PRIVATE cnc_sim_core)
+    target_include_directories(simulator_gcode_controls_smoke PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+    add_executable(cnc_sim_dump
+        tools/cnc_sim_dump.cpp
+    )
+    target_link_libraries(cnc_sim_dump PRIVATE cnc_sim_core)
+    target_include_directories(cnc_sim_dump PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+
+    if(CNC_SIM_ENABLE_LINUXCNC_RS274_BACKEND)
+        add_executable(cnc_sim_api_linuxcnc_rs274_smoke
+            tests/cnc_sim_api_linuxcnc_rs274_smoke.cpp
+        )
+        target_link_libraries(cnc_sim_api_linuxcnc_rs274_smoke PRIVATE cnc_sim_core)
+        target_include_directories(cnc_sim_api_linuxcnc_rs274_smoke PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/src)
+    endif()
+endif()
+
+if(CNC_SIM_ENABLE_LINUXCNC_BRIDGE)
+    if(NOT CNC_SIM_LINUXCNC_ROOT)
+        message(FATAL_ERROR "Set CNC_SIM_LINUXCNC_ROOT to the LinuxCNC source root")
+    endif()
+    add_library(cnc_sim_linuxcnc_canon_bridge STATIC
+        src/linuxcnc_canon_bridge.cpp
+    )
+    target_include_directories(cnc_sim_linuxcnc_canon_bridge
+        PRIVATE
+            ${CMAKE_CURRENT_SOURCE_DIR}/include
+            ${CMAKE_CURRENT_SOURCE_DIR}/src
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc/nml_intf
+            ${CNC_SIM_LINUXCNC_ROOT}/src/emc/rs274ngc
+            ${CNC_SIM_LINUXCNC_ROOT}/src
+            ${CNC_SIM_LINUXCNC_ROOT}/include
+    )
+    target_link_libraries(cnc_sim_linuxcnc_canon_bridge PRIVATE cnc_sim_core)
+endif()
+
+if(EMSCRIPTEN)
+    add_executable(cnc_sim_wasm
+        $<TARGET_OBJECTS:cnc_sim_objects>
+    )
+
+    target_include_directories(cnc_sim_wasm
+        PRIVATE
+            ${CMAKE_CURRENT_SOURCE_DIR}/include
+            ${CMAKE_CURRENT_SOURCE_DIR}/src
+    )
+
+    set_target_properties(cnc_sim_wasm PROPERTIES
+        OUTPUT_NAME "cnc_sim"
+        SUFFIX ".js"
+    )
+
+    target_link_options(cnc_sim_wasm PRIVATE
+        "--no-entry"
+        "-sMODULARIZE=1"
+        "-sEXPORT_NAME=createCncSimModule"
+        "-sALLOW_MEMORY_GROWTH=1"
+        "-sALLOW_TABLE_GROWTH=1"
+        "-sEXPORTED_FUNCTIONS=['_malloc','_free','_cnc_sim_create','_cnc_sim_destroy','_cnc_sim_reset','_cnc_sim_set_dialect','_cnc_sim_set_event_callback','_cnc_sim_load_config_json','_cnc_sim_parse_program','_cnc_sim_last_error']"
+        "-sEXPORTED_RUNTIME_METHODS=['ccall','cwrap','UTF8ToString','stringToUTF8','lengthBytesUTF8','addFunction','removeFunction']"
+    )
+endif()