feat(protocan): добавь общий ABI для GUI

c/protocan-transport/CMakeLists.txt

@@ -5,7 +5,8 @@ set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)
 
 # Ядро библиотеки: платформенных зависимостей нет, собирается под что угодно.
-add_library(protocan_transport STATIC
+set(PCAN_CORE_SOURCES
+    src/pcan_abi.c
     src/pcan_crc.c
     src/pcan_frame.c
     src/pcan_id.c
@@ -14,14 +15,36 @@ add_library(protocan_transport STATIC
     src/pcan_gas.c
 )
 
+add_library(protocan_transport STATIC ${PCAN_CORE_SOURCES})
+
 target_include_directories(protocan_transport PUBLIC include)
 
+option(PCAN_BUILD_SHARED "Build stable host ABI shared library" ON)
+if(PCAN_BUILD_SHARED)
+    add_library(setcore SHARED ${PCAN_CORE_SOURCES})
+    target_include_directories(setcore PUBLIC include)
+    target_compile_definitions(setcore PRIVATE PCAN_ABI_BUILD_DLL)
+    set_target_properties(setcore PROPERTIES
+        C_VISIBILITY_PRESET hidden
+        VISIBILITY_INLINES_HIDDEN YES
+        OUTPUT_NAME setcore
+    )
+endif()
+
 if(MSVC)
     target_compile_options(protocan_transport PRIVATE /W4)
 else()
     target_compile_options(protocan_transport PRIVATE -Wall -Wextra -Wpedantic)
 endif()
 
+if(TARGET setcore)
+    if(MSVC)
+        target_compile_options(setcore PRIVATE /W4)
+    else()
+        target_compile_options(setcore PRIVATE -Wall -Wextra -Wpedantic)
+    endif()
+endif()
+
 # Порт ports/stm32f4 сюда не входит: ему нужен CMSIS-заголовок stm32f4xx.h,
 # он подключается напрямую в проект прошивки.
 
@@ -32,4 +55,7 @@ if(PCAN_BUILD_TESTS)
     add_executable(test_transport tests/test_transport.c)
     target_link_libraries(test_transport PRIVATE protocan_transport)
     add_test(NAME transport COMMAND test_transport)
+    add_executable(test_abi tests/test_abi.c)
+    target_link_libraries(test_abi PRIVATE protocan_transport)
+    add_test(NAME abi COMMAND test_abi)
 endif()