cmake_minimum_required(VERSION 3.21)
project(dhrystone C)
set(TARGET dhrystone)

set(ITERATIONS 50000 CACHE STRING "")
set(FREQ 100e6 CACHE STRING "")

set(CMAKE_C_FLAGS_RELEASE -O3)

add_executable(${TARGET} dhry_1.c dhry_2.c dhry_stubs.c)
target_include_directories(${TARGET} PRIVATE ${CMAKE_CURRENT_LIST_DIR})
target_compile_options(${TARGET} PRIVATE 
        -Wno-implicit -fno-builtin-printf 
        -finline -fno-common -funroll-loops -fpeel-loops 
        -finline-functions -finline-limit=1000
        -fgcse-sm -fgcse-las 
        -falign-functions=16 -falign-jumps=4 -falign-loops=4 
        -freorder-blocks-and-partition -fno-if-conversion2 -fno-crossjumping)
target_compile_definitions(${TARGET} PRIVATE ITERATIONS=${ITERATIONS} HZ=${FREQ} TIME NO_INIT)

set(BOARD "iss" CACHE STRING "Target board")
add_subdirectory(../../bare-metal-bsp bsp)
target_link_libraries(${TARGET} PRIVATE bsp)
target_link_options(${TARGET} PRIVATE LINKER:-Map=${TARGET}.map -Wl,--wrap=scanf)

add_custom_command(TARGET ${TARGET} POST_BUILD
        COMMAND ${CMAKE_OBJDUMP} -S ${TARGET}.elf > ${TARGET}.dis
        COMMENT "Creating disassembly for ${TARGET}")