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Merge pull request #1031 from acudmore/fix914-update-rtems-toolchain-files
Fix #914, Add toolchain file for RTEMS 5.1/pc-rtems
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‎cmake/sample_defs/toolchain-i686-rtems4.11.cmake

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@@ -42,8 +42,7 @@ SET(CMAKE_AR "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}ar")
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SET(CMAKE_OBJDUMP "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objdump")
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SET(CMAKE_OBJCOPY "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objcopy")
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# Note that CEXP is not a shared library loader - it will not support code compiled with -fPIC
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# Also exception handling is very iffy. These two options disable eh_frame creation.
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# Exception handling is very iffy. These two options disable eh_frame creation.
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set(CMAKE_C_COMPILE_OPTIONS_PIC -fno-exceptions -fno-asynchronous-unwind-tables)
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# search for programs in the build host directories

‎cmake/sample_defs/toolchain-i686-rtems5.cmake

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# This example toolchain file describes the cross compiler to use for
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# the target architecture indicated in the configuration file.
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# In this sample application, the cross toolchain is configured to
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# use a compiler for the RTEMS operating system targeting the "pc686" BSP
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# Note that to use this, the "RTEMS" platform module may need to be added
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# to the system-wide CMake installation as a default CMake does not yet
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# recognize RTEMS as a system name. An example of this is distributed with
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# the pc-rtems PSP.
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# Basic cross system configuration
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set(CMAKE_SYSTEM_NAME RTEMS)
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set(CMAKE_SYSTEM_PROCESSOR i386)
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set(CMAKE_SYSTEM_VERSION 5)
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# The TOOLS and BSP are allowed to be installed in different locations.
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# If the README was followed they will both be installed under $HOME
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# By default it is assumed the BSP is installed to the same directory as the tools
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SET(RTEMS_TOOLS_PREFIX "$ENV{HOME}/rtems-${CMAKE_SYSTEM_VERSION}" CACHE PATH
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"RTEMS tools install directory")
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SET(RTEMS_BSP_PREFIX "${RTEMS_TOOLS_PREFIX}" CACHE PATH
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"RTEMS BSP install directory")
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# The BSP that will be used for this build
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set(RTEMS_BSP "pc686")
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# specify the cross compiler - adjust accord to compiler installation
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# This uses the compiler-wrapper toolchain that buildroot produces
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SET(SDKHOSTBINDIR "${RTEMS_TOOLS_PREFIX}/bin")
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set(TARGETPREFIX "${CMAKE_SYSTEM_PROCESSOR}-rtems${CMAKE_SYSTEM_VERSION}-")
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set(RTEMS_BSP_C_FLAGS "-march=i686 -mtune=i686 -fno-common")
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set(RTEMS_BSP_CXX_FLAGS ${RTEMS_BSP_C_FLAGS})
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SET(CMAKE_C_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}gcc")
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SET(CMAKE_CXX_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}g++")
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SET(CMAKE_LINKER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}ld")
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SET(CMAKE_ASM_COMPILER "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}as")
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SET(CMAKE_STRIP "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}strip")
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SET(CMAKE_NM "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}nm")
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SET(CMAKE_AR "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}ar")
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SET(CMAKE_OBJDUMP "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objdump")
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SET(CMAKE_OBJCOPY "${RTEMS_TOOLS_PREFIX}/bin/${TARGETPREFIX}objcopy")
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# Exception handling is very iffy. These two options disable eh_frame creation.
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set(CMAKE_C_COMPILE_OPTIONS_PIC -fno-exceptions -fno-asynchronous-unwind-tables)
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# Link libraries needed for an RTEMS 5.x executable
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# This was handled by the bsp_specs file in 4.11
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set(LINK_LIBRARIES "-lrtemsdefaultconfig -lrtemsbsp -lrtemscpu")
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# search for programs in the build host directories
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SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# for libraries and headers in the target directories
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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_PREFIX_PATH /)
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# these settings are specific to cFE/OSAL and determines which
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# abstraction layers are built when using this toolchain
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SET(CFE_SYSTEM_PSPNAME pc-rtems)
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SET(OSAL_SYSTEM_BSPTYPE pc-rtems)
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SET(OSAL_SYSTEM_OSTYPE rtems)
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# This is for RTEMS 5 specific ifdefs needed by the OSAL
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ADD_DEFINITIONS(-D_RTEMS_5_)
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# Info regarding the RELOCADDR:
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#+--------------------------------------------------------------------------+
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#| Set the value of RELOCADDR to the address where you want your image to
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#| load. If you'll be using GRUB to load the images it will have to be >=
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#| 0x100000 (1024K). If you are using NetBoot to load the images it can be
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#| >= 0x10000 (64K) AND <= 0x97C00 (607K) OR >= 0x100000 (1024K). The memory
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#| top is of course another limit. Make sure there is enough space before the
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#| upper memory limits for the image and the memory allocated by it to fit.
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#| Make sure the value you choose is aligned to 4 bytes.
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#+--------------------------------------------------------------------------+
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set(RTEMS_RELOCADDR 0x00100000)
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