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Get the XC16 toolchain working properly.
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‎Toolchains/xc16.cmake‎

Lines changed: 129 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,10 +1,46 @@
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# CMake toolchain for the Microchip XC16 compiler
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# http://www.microchip.com/mplab/compilers
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#
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# Copyright 2016 Sam Hanes
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# set the CMake platform
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# Generic is correct for embedded systems without an OS
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set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_SYSTEM_PROCESSOR PIC24FJ256GB106)
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set(XC16_PATH /opt/microchip/xc16/v1.25)
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set(CMAKE_C_COMPILER ${XC16_PATH}/bin/xc16-gcc)
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set(XC16_BIN2HEX ${XC16_PATH}/bin/xc16-bin2hex)
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# set the (default) MCU model
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set(CMAKE_SYSTEM_PROCESSOR PIC24FJ32GB002
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CACHE STRING "the part number of the target Microchip MCU"
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)
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# set the (default) path to XC16
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set(XC16_PATH "/opt/microchip/xc16/v1.25"
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CACHE PATH "the path at which Microchip XC16 is installed"
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)
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# validate the XC16 path
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if(NOT EXISTS ${XC16_PATH})
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message(FATAL_ERROR
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"XC16 path '${XC16_PATH}' does not exist"
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)
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endif()
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# ensure that only the cross toolchain is searched for
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# libraries, include files, and other similar things
@@ -13,3 +49,92 @@ set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM BOTH)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
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# set up the toolchain executables
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find_program(CMAKE_C_COMPILER xc16-gcc)
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find_program(CMAKE_AR xc16-ar)
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find_program(CMAKE_LINKER xc16-ld)
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find_program(CMAKE_NM xc16-nm)
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find_program(CMAKE_OBJDUMP xc16-objdump)
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find_program(CMAKE_RANLIB xc16-ranlib)
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find_program(CMAKE_STRIP xc16-strip)
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find_program(XC16_BIN2HEX xc16-bin2hex)
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# verify the comiler was found
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if(NOT CMAKE_C_COMPILER)
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message(FATAL_ERROR
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"XC16 path '${XC16_PATH}'"
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" does not contain an XC16 compiler"
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)
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endif()
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# parse the CPU option and set relevant options
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "^(dsPIC|PIC)([0-9]+[A-Z])([A-Z0-9]+)$")
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set(XC16_CPU_FAMILY "${CMAKE_MATCH_1}${CMAKE_MATCH_2}")
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set(XC16_CPU_MODEL "${CMAKE_MATCH_2}${CMAKE_MATCH_3}")
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set(XC16_SUPPORT_DIR "${XC16_PATH}/support/${XC16_CPU_FAMILY}")
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set(XC16_LINKER_SCRIPT "p${XC16_CPU_MODEL}.gld")
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set(XC16_GLD_PATH "${XC16_SUPPORT_DIR}/gld/${XC16_LINKER_SCRIPT}")
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if(NOT EXISTS ${XC16_GLD_PATH})
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message(SEND_ERROR
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"CPU '${CMAKE_SYSTEM_PROCESSOR}' is not supported: "
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"linker script '${XC16_GLD_PATH}' does not exist."
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)
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endif()
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add_compile_options(
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"-mcpu=${XC16_CPU_MODEL}"
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)
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set(CMAKE_C_LINK_FLAGS
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"-mcpu=${XC16_CPU_MODEL} -Wl,--script,${XC16_LINKER_SCRIPT}"
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)
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else()
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message(SEND_ERROR
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"Invalid CMAKE_SYSTEM_PROCESSOR value '${CMAKE_SYSTEM_PROCESSOR}'."
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)
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endif()
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# adds an Intel HEX conversion to the given target
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function(bin2hex target)
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function(get_target_property_fallback var target)
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set(result NOTFOUND)
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foreach(property ${ARGN})
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get_target_property(result ${target} ${property})
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if(result)
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break()
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endif()
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endforeach()
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set(${var} ${result} PARENT_SCOPE)
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endfunction()
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get_target_property_fallback(in_f ${target}
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RUNTIME_OUTPUT_NAME
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OUTPUT_NAME
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NAME
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)
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get_target_property_fallback(dir ${target}
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RUNTIME_OUTPUT_DIRECTORY
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BINARY_DIR
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)
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get_filename_component(out_f ${in_f} NAME_WE)
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set(out_f "${out_f}.hex")
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add_custom_command(
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TARGET ${target} POST_BUILD
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WORKING_DIRECTORY ${dir}
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COMMAND ${XC16_BIN2HEX} ${in_f}
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COMMENT "Creating HEX for ${target}"
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BYPRODUCTS ${dir}/${out_f}
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VERBATIM
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)
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set_property(DIRECTORY APPEND
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PROPERTY ADDITIONAL_MAKE_CLEAN_FILES
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${dir}/${out_f}
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)
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endfunction()

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