FreeBSD/Linux Kernel Cross Reference
sys/scripts/headers.sh

     #!/bin/sh
     # Run headers_$1 command for all suitable architectures
     
     # Stop on error
     set -e
     
     do_command()
     {
             if [ -f ${srctree}/arch/$2/include/asm/Kbuild ]; then
                    make ARCH=$2 KBUILD_HEADERS=$1 headers_$1
            else
                    printf "Ignoring arch: %s\n" ${arch}
            fi
    }
    
    archs=${HDR_ARCH_LIST:-$(ls ${srctree}/arch)}
    
    for arch in ${archs}; do
            case ${arch} in
            um)        # no userspace export
                    ;;
            cris)      # headers export are known broken
                    ;;
            *)
                    if [ -d ${srctree}/arch/${arch} ]; then
                            do_command $1 ${arch}
                    fi
                    ;;
            esac
    done
    
    

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