Revision as of 04:49, 7 April 2016

Make the IDP Cross-compiler SDK includes kernel source

1. Configure a build and then add the following to your local.conf file. This could be included within a layer using, for example, a template.conf file too:
   TOOLCHAIN_TARGET_TASK_append = " python-dev kernel-dev"
2. Build and install the SDK:
   $ make export-sdk
   $ export/wrlinux-6.0.0.11-eglibc-x86_64-intel_x86_64-w rlinux-image-glibc-std-sdk.sh
   Enter target directory for SDK (default: /opt/windriver/wrlinux/6.0-intel-x86-64): /path/to/sdk
   You are about to install the SDK to "/path/to/sdk". Proceed[Y/n]?
   Extracting SDK...done 
   Setting it up...done
   SDK has been successfully set up and is ready to be used.
3. Source the SDK environment:
   $ cd /path/to/sdk/
   $ source env.sh
4.  Build the needed scripts
   $ cd /path/to/sdk/sysroots/x86_64-wrs-linux/usr/src/kernel
   $ make CROSS_COMPILE=$CROSS_COMPILE ARCH=$ARCH scripts
    HOSTCC  scripts/basic/fixdep
    CC       scripts/mod/empty.o
    HOSTCC  scripts /mod/mk_elfconfig
    MKELF   scripts/mod/elfconfig.h
    CC       scripts/mod/devicetable-offsets.s
    GEN      scripts/mod/devicetable-offsets.h
    HOSTCC  scripts/mod/file2alias.o
    HOSTCC  scripts/mod/modpost.o
    HOSTCC  scripts/mod/sumversion.o
    HOSTLD  scripts/mod/modpost
    HOSTCC  scripts/kallsyms
    HOSTCC  scripts/conmakehash
    HOSTCC  scripts/bin2c
    HOSTCC  scripts/recordmcount
    HOSTCC  scripts/sortextable
5. You should then be able to build your kernel module:
  $ cd /path/to/your/module
  $ make -C /path/to/sdk/sysroots/x86_64-wrs-linux/usr/src/kernel/ CROSS_COMPILE=$CROSS_COMPILE ARCH=$ARCH M=`pwd`
   make: Entering directory `/path/to/sdk/sysroots/x86_64-wrs-linux/usr/src/kerne l-3.10.38-ltsi-wr6.0.0.11-standard'
   CC [M]  /path/to/your/module/mymod.o
   Building modules, stage 2.
   MODPOST 1 modules 
   CC      /path/to/your/module/mymod.mod.o
   LD [M]  /path/to/your/module/mymod.ko
   make: Leaving directory `/path/to/sdk/sysroots/x86_64-wrs-lin ux/usr/src/kernel-3.10.38-ltsi-wr6.0.0.11-standard'