cmake_minimum_required(VERSION 3.12)
project(hello-world C)

# Set default board to iss if not specified
if(NOT DEFINED BOARD)
    set(BOARD "iss" CACHE STRING "Target board")
endif()

#set(BSP_BASE "${CMAKE_CURRENT_SOURCE_DIR}/../bare-metal-bsp")



# Source files
set(SOURCES
    hello.c
)

message(STATUS "Building for board: ${BOARD}")
message(STATUS "liu:${PROJECT_NAME} ")
message(STATUS "Using board-specific files from: ${BSP_BASE}/env/${BOARD}")

# Create executable with all objects
add_executable(${PROJECT_NAME} 
    ${SOURCES}
    ${BSP_OBJECTS}
   
    
)

# Link with board library
target_link_libraries(${PROJECT_NAME}  PRIVATE 
 ${LIBWRAP_OBJECTS}
 ${ENV_OBJECTS}
 #$<TARGET_OBJECTS:env_entry>
 #$<TARGET_OBJECTS:env_start>
 )

# Include directories
target_include_directories(${PROJECT_NAME}  PRIVATE
    ${BSP_BASE}/include
    ${BSP_BASE}/drivers
    ${BSP_BASE}/env
    ${BSP_BASE}/env/${BOARD}
    ${BSP_BASE}/libwrap
)

# Add compile definitions
target_compile_definitions(${PROJECT_NAME}  PRIVATE
    BOARD_${BOARD}
)

# link global_compile_options to this target
target_link_libraries(${PROJECT_NAME} PRIVATE global_compile_options)

# Set linker options
target_link_options(${PROJECT_NAME}  PRIVATE
    -T${BSP_BASE}/env/${BOARD}/link.ld
    -nostartfiles
    -Wl,--gc-sections
)

# Install target
install(TARGETS ${PROJECT_NAME} 
    RUNTIME DESTINATION bin
)