cmake_minimum_required(VERSION 3.21)
project(mnrs-bsp LANGUAGES ASM C)

if(NOT DEFINED BOARD)
message(FATAL_ERROR "No Board selected")
endif()
add_compile_definitions("BOARD_${BOARD}")

set(TESTBENCHES "rtl" "TGCP")
list(FIND TESTBENCHES ${BOARD} _index)
if(NOT _index EQUAL -1)
    set(BOARD "testbench/${BOARD}")
endif()

option(SEMIHOSTING "Enable semihosting support" OFF)
if(SEMIHOSTING)
    add_compile_definitions(SEMIHOSTING)
endif()

add_library(startup STATIC env/start.S env/entry.S)
target_include_directories(startup PUBLIC env include)

add_subdirectory(libwrap)

add_library(bsp STATIC env/${BOARD}/init.c)
target_link_libraries(bsp PUBLIC startup wrap)
target_include_directories(bsp PUBLIC env/${BOARD})
target_link_options(bsp INTERFACE LINKER:--no-warn-rwx-segments -nostartfiles -T ${CMAKE_CURRENT_SOURCE_DIR}/env/${BOARD}/link.lds)

if(SEMIHOSTING)
    target_include_directories(bsp INTERFACE include)
    target_sources(bsp INTERFACE env/semihosting.c env/trap.c)
endif()