1 | #!/bin/bash |
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2 | # |
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3 | # Kernel stub header creation functions for cross-lfs build |
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4 | # --------------------------------------------------------- |
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5 | # $LastChangedBy$ |
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6 | # $LastChangedDate$ |
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7 | # $LastChangedRevision$ |
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8 | # $HeadURL$ |
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9 | # |
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10 | |
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11 | set_stub_arch_switch() { |
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12 | case ${TGT_ARCH} in |
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13 | x86_64 | x86-64 ) |
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14 | ARCH_SWITCH=__x86_64__ |
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15 | # ARCH1=x86_64 |
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16 | # ARCH2=i386 |
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17 | ;; |
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18 | sparc* | ultrasparc* ) |
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19 | ARCH_SWITCH=__arch64__ |
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20 | # ARCH1=sparc64 |
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21 | # ARCH2=sparc |
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22 | ;; |
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23 | ppc* | powerpc* ) |
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24 | ARCH_SWITCH=__powerpc64__ |
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25 | # ARCH1=ppc64 |
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26 | # ARCH2=ppc |
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27 | ;; |
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28 | s390* ) |
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29 | ARCH_SWITCH=__s390x__ |
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30 | # ARCH1=s390x |
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31 | # ARCH2=s390 |
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32 | ;; |
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33 | esac |
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34 | } |
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35 | |
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36 | # Creates kernel header stubs for biarch builds |
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37 | create_kernel_stubs() { |
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38 | ARCH1=${1} |
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39 | ARCH1_SWITCH=${2} |
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40 | ARCH2=${3} |
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41 | KERN_HDR_DIR=${4} |
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42 | |
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43 | # Store the current directory so we can return. |
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44 | startdir=`pwd` |
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45 | for arch in ${ARCH1} ${ARCH2}; do |
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46 | cd ${KERN_HDR_DIR}/asm-${arch} |
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47 | dirs=`find . -type d | sed 's@^\.*\(\|/\)@@g'` |
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48 | hdrs=`find . -type f -name \*.h | sed 's@^\.*\(\|/\)@@g'` |
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49 | DIRS=`echo ${DIRS} ${dirs} | sort | uniq` |
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50 | HDRS=`echo ${HDRS} ${hdrs} | sort | uniq` |
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51 | done |
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52 | cd ${startdir} |
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53 | |
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54 | # Create directories (if required) under include/asm |
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55 | if [ "${DIRS}" != "" ]; then |
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56 | for dir in ${DIRS}; do |
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57 | mkdir -p ${KERN_HDR_DIR}/asm/${dir} |
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58 | done |
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59 | fi |
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60 | |
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61 | for hdr in ${HDRS}; do |
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62 | # include barrier |
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63 | name=`basename ${hdr} | tr [a-z]. [A-Z]_` |
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64 | cat > ${KERN_HDR_DIR}/asm/${hdr} << EOF |
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65 | #ifndef __STUB__${name}__ |
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66 | #define __STUB__${name}__ |
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67 | |
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68 | EOF |
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69 | |
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70 | # check whether we exist in arch1 |
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71 | if [ -f ${KERN_HDR_DIR}/asm-${ARCH1}/${hdr} ]; then |
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72 | # check if we also exist arch2 |
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73 | if [ -f ${KERN_HDR_DIR}/asm-${ARCH2}/${hdr} ]; then |
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74 | # we exist in both |
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75 | cat >> ${KERN_HDR_DIR}/asm/${hdr} << EOF |
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76 | #ifdef ${ARCH1_SWITCH} |
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77 | #include <asm-${ARCH1}/${hdr}> |
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78 | #else |
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79 | #include <asm-${ARCH2}/${hdr}> |
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80 | #endif |
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81 | EOF |
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82 | else |
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83 | # we only exist in arch1 |
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84 | cat >> ${KERN_HDR_DIR}/asm/${hdr} << EOF |
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85 | #ifdef ${ARCH1_SWITCH} |
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86 | #include <asm-${ARCH1}/${hdr}> |
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87 | #endif |
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88 | EOF |
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89 | fi |
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90 | # end arch1 |
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91 | else |
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92 | # if we get here we only exist in arch2 |
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93 | cat >> ${KERN_HDR_DIR}/asm/${hdr} << EOF |
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94 | #ifndef ${ARCH1_SWITCH} |
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95 | #include <asm-${ARCH2}/${hdr}> |
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96 | #endif |
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97 | EOF |
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98 | |
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99 | fi |
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100 | cat >> ${KERN_HDR_DIR}/asm/${hdr} << EOF |
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101 | |
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102 | #endif /* __STUB__${name}__ */ |
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103 | EOF |
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104 | echo " - ${KERN_HDR_DIR}/asm/${hdr} created" |
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105 | |
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106 | done |
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107 | } |
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108 | |
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109 | # Export functions |
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110 | export -f set_stub_arch_switch |
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111 | export -f create_kernel_stubs |
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112 | |
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