#include(CMakePrintHelpers)
include(AddFileDependencies)

function(compilerVersion)
  execute_process(COMMAND "${CMAKE_C_COMPILER}" --version_number
     OUTPUT_VARIABLE CVERSION
     ERROR_VARIABLE CVERSION
    )
  SET(COMPILERVERSION ${CVERSION} PARENT_SCOPE)
  #cmake_print_variables(CVERSION)
  #cmake_print_variables(CMAKE_C_COMPILER)
  #MESSAGE( STATUS "CMD_OUTPUT:" ${CVERSION})
endfunction()

function(compilerSpecificCompileOptions PROJECTNAME ROOT)
  if (FASTMATHCOMPUTATIONS)
      target_compile_options(${PROJECTNAME} PUBLIC "-ffast-math")
  endif()
  
  if (HARDFP)
    target_compile_options(${PROJECTNAME} PUBLIC "-mfloat-abi=hard")
  endif()
  
  if (LITTLEENDIAN)
    target_compile_options(${PROJECTNAME} PUBLIC "-mlittle-endian")
  endif()

  if (CORTEXM OR CORTEXR)
    target_compile_options(${PROJECTNAME} PUBLIC "-mthumb")
  endif()
  
  # Core specific config

  if (ARM_CPU STREQUAL "cortex-m55" )
        target_compile_options(${PROJECTNAME} PUBLIC "-fshort-enums")
        target_compile_options(${PROJECTNAME} PUBLIC "-fshort-wchar")
  endif()

  if (ARM_CPU STREQUAL "cortex-m55+nomve" )
        target_compile_options(${PROJECTNAME} PUBLIC "-fshort-enums")
        target_compile_options(${PROJECTNAME} PUBLIC "-fshort-wchar")
  endif()

  if (ARM_CPU STREQUAL "cortex-m33" )
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=fpv5-sp-d16")
  endif()

  if (ARM_CPU STREQUAL "cortex-m33+nodsp" )
    target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=none")
  endif()

  if (ARM_CPU STREQUAL "cortex-m7" )
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=fpv5-sp-d16")
  endif()

  if (ARM_CPU STREQUAL "cortex-m4" )
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=fpv4-sp-d16")
  endif()
  
  if (ARM_CPU STREQUAL "cortex-a9" )
      if (NOT (NEON OR NEONEXPERIMENTAL))
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=vfpv3-d16-fp16")
      endif()
  endif()
  

  if (ARM_CPU STREQUAL "cortex-a32" )
      if (NEON OR NEONEXPERIMENTAL)
          target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=neon-fp-armv8")
      endif()
  endif()

  
  if (ARM_CPU STREQUAL "cortex-a7" )
      if (NOT (NEON OR NEONEXPERIMENTAL))
          target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=vfpv4-d16")
      endif()
  endif()

  
  if (ARM_CPU STREQUAL "cortex-a5" )
      if ((NEON OR NEONEXPERIMENTAL))
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=neon-vfpv4")
      else()
        target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=vfpv4-d16")
      endif()
  endif()

  if (ARM_CPU STREQUAL "cortex-r52" )
      target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=neon-fp-armv8")
  endif()

  if (ARM_CPU STREQUAL "cortex-r8" )
      target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=vfpv3-d16-fp16")
  endif()

  if (ARM_CPU STREQUAL "cortex-r5" )
      target_compile_options(${PROJECTNAME} PUBLIC "-mfpu=vfpv3")
  endif()


  if(EXPERIMENTAL)
    experimentalCompilerSpecificCompileOptions(${PROJECTNAME} ${ROOT})
  endif()

   target_compile_options(${PROJECTNAME} PUBLIC 
    "$<$<COMPILE_LANGUAGE:C>:-O1>"
    "$<$<COMPILE_LANGUAGE:CXX>:-O1>"
   )
endfunction()


function(toolchainSpecificLinkForCortexM PROJECTNAME ROOT CORE PLATFORMFOLDER HASCSTARTUP)
    # A specific library is created for ASM file
    # since we do not want standard compile flags (for C) to be applied to 
    # ASM files.
    if (HASCSTARTUP)
      target_sources(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/Startup/AC6/startup_${CORE}.c)
    else()
      target_sources(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/Startup/AC6/startup_${CORE}.s)
    endif() 
    target_include_directories(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6)

    set(SCATTERFILE "${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/lnk.sct")

    set_target_properties(${PROJECTNAME} PROPERTIES LINK_DEPENDS "${SCATTERFILE};${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/mem_${CORE}.h")
   
    #target_link_options(${PROJECTNAME} PRIVATE "--info=sizes")
    target_link_options(${PROJECTNAME} PRIVATE "--entry=Reset_Handler;--scatter=${SCATTERFILE}")

endfunction()

function(toolchainSpecificLinkForCortexA PROJECTNAME ROOT CORE PLATFORMFOLDER)
    target_sources(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/Startup/AC6/startup_${CORE}.c)
    

    # RTE Components.h
    target_include_directories(${PROJECTNAME} PRIVATE ${ROOT}/CMSIS/DSP/Testing)

    set(SCATTERFILE "${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/lnk.sct")

    set_target_properties(${PROJECTNAME} PROPERTIES LINK_DEPENDS "${SCATTERFILE};${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/mem_${CORE}.h")

    target_include_directories(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6)

    #target_link_options(${PROJECTNAME} PRIVATE "--info=sizes")
    target_link_options(${PROJECTNAME} PRIVATE "--entry=Vectors;--scatter=${SCATTERFILE}")

endfunction()

function(toolchainSpecificLinkForCortexR PROJECTNAME ROOT CORE PLATFORMFOLDER)
    #target_sources(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/Startup/AC6/startup_${CORE}.c)
    target_sources(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/Startup/AC6/startup.s)
    

    # RTE Components.h
    target_include_directories(${PROJECTNAME} PRIVATE ${ROOT}/CMSIS/DSP/Testing)

    set(SCATTERFILE "${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/lnk.sct")

    set_target_properties(${PROJECTNAME} PROPERTIES LINK_DEPENDS "${SCATTERFILE};${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6/mem_${CORE}.h")

    target_include_directories(${PROJECTNAME} PRIVATE ${PLATFORMFOLDER}/${CORE}/LinkScripts/AC6)

    #target_link_options(${PROJECTNAME} PRIVATE "--info=sizes")
    target_link_options(${PROJECTNAME} PRIVATE "--entry=Reset_Handler;--scatter=${SCATTERFILE}")
endfunction()

function(compilerSpecificPlatformConfigLibForM PROJECTNAME ROOT)
endfunction()

function(compilerSpecificPlatformConfigLibForA PROJECTNAME ROOT)
endfunction()

function(compilerSpecificPlatformConfigLibForR PROJECTNAME ROOT)
endfunction()

function(compilerSpecificPlatformConfigAppForM PROJECTNAME ROOT)
target_link_libraries(${PROJECTNAME} 
    "--library_type=microlib"
    "--summary_stderr"
    "--info summarysizes"
    "--map" 
    "--load_addr_map_info"
    "--xref"
    "--callgraph"
    "--symbols"
    "--info sizes" 
    "--info totals" 
    "--info unused" 
    "--info veneers"
  )
endfunction()

function(compilerSpecificPlatformConfigAppForA PROJECTNAME ROOT)
endfunction()

function(compilerSpecificPlatformConfigAppForR PROJECTNAME ROOT)
endfunction()