1 | #!/bin/sh
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2 |
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3 | # If not specified in environment...
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4 | if ! test "$LIBC"; then
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5 | # Select which libc to build against
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6 | LIBC="glibc"
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7 | LIBC="uclibc"
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8 | fi
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9 | # x86 32-bit:
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10 | #CROSS_COMPILER_PREFIX="i486-linux-uclibc-"
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11 | # My system has strange prefix for x86 64-bit uclibc:
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12 | #CROSS_COMPILER_PREFIX="x86_64-pc-linux-gnu-"
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13 |
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14 | if test $# -lt 2 || ! test -d "$1" || test -e "$2"; then
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15 | echo "Usage: $0 SRC_DIR TMP_DIR"
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16 | echo
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17 | echo "SRC_DIR will be copied to TMP_DIR directory."
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18 | echo "Then a random build will be performed."
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19 | echo
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20 | echo "Useful variables:"
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21 | echo "\$LIBC, \$CROSS_COMPILER_PREFIX, \$MAKEOPTS"
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22 | exit 1
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23 | fi
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24 |
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25 | cp -dpr -- "$1" "$2" || { echo "copy error"; exit 1; }
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26 | cd -- "$2" || { echo "cd $dir error"; exit 1; }
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27 |
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28 | # Generate random config
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29 | make randconfig >/dev/null || { echo "randconfig error"; exit 1; }
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30 |
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31 | # Tweak resulting config
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32 | cat .config \
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33 | | grep -v CONFIG_DEBUG_PESSIMIZE \
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34 | | grep -v CONFIG_WERROR \
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35 | | grep -v CONFIG_CROSS_COMPILER_PREFIX \
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36 | | grep -v CONFIG_SELINUX \
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37 | | grep -v CONFIG_EFENCE \
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38 | | grep -v CONFIG_DMALLOC \
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39 | \
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40 | | grep -v CONFIG_RFKILL \
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41 | >.config.new
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42 | mv .config.new .config
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43 | echo '# CONFIG_DEBUG_PESSIMIZE is not set' >>.config
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44 | echo '# CONFIG_WERROR is not set' >>.config
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45 | echo "CONFIG_CROSS_COMPILER_PREFIX=\"${CROSS_COMPILER_PREFIX}\"" >>.config
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46 | echo '# CONFIG_SELINUX is not set' >>.config
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47 | echo '# CONFIG_EFENCE is not set' >>.config
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48 | echo '# CONFIG_DMALLOC is not set' >>.config
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49 | echo '# CONFIG_RFKILL is not set' >>.config
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50 |
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51 | # If glibc, don't build static
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52 | if test x"$LIBC" = x"glibc"; then
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53 | cat .config \
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54 | | grep -v CONFIG_STATIC \
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55 | \
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56 | | grep -v CONFIG_FEATURE_2_4_MODULES \
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57 | | grep -v CONFIG_FEATURE_USE_BSS_TAIL \
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58 | | grep -v CONFIG_DEBUG_SANITIZE \
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59 | >.config.new
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60 | mv .config.new .config
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61 | echo '# CONFIG_STATIC is not set' >>.config
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62 | # newer glibc (at least 2.23) no longer supply query_module() ABI.
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63 | # People who target 2.4 kernels would likely use older glibc (and older bbox).
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64 | echo '# CONFIG_FEATURE_2_4_MODULES is not set' >>.config
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65 | echo '# CONFIG_FEATURE_USE_BSS_TAIL is not set' >>.config
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66 | echo '# CONFIG_DEBUG_SANITIZE is not set' >>.config
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67 | fi
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68 |
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69 | # If uclibc, build static, and remove some things
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70 | # likely to not work on uclibc.
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71 | if test x"$LIBC" = x"uclibc"; then
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72 | cat .config \
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73 | | grep -v CONFIG_STATIC \
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74 | | grep -v CONFIG_BUILD_LIBBUSYBOX \
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75 | | grep -v CONFIG_PIE \
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76 | \
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77 | | grep -v CONFIG_FEATURE_2_4_MODULES \
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78 | | grep -v CONFIG_FEATURE_SYNC_FANCY \
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79 | | grep -v CONFIG_FEATURE_TOUCH_NODEREF \
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80 | | grep -v CONFIG_NANDWRITE \
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81 | | grep -v CONFIG_NANDDUMP \
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82 | | grep -v CONFIG_BLKDISCARD \
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83 | | grep -v CONFIG_NSENTER \
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84 | | grep -v CONFIG_UNSHARE \
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85 | >.config.new
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86 | mv .config.new .config
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87 | echo 'CONFIG_STATIC=y' >>.config
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88 | echo '# CONFIG_BUILD_LIBBUSYBOX is not set' >>.config
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89 | echo '# CONFIG_PIE is not set' >>.config
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90 | echo '# CONFIG_FEATURE_2_4_MODULES is not set' >>.config
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91 | echo '# CONFIG_FEATURE_SYNC_FANCY is not set' >>.config
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92 | echo '# CONFIG_FEATURE_TOUCH_NODEREF is not set' >>.config
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93 | # My uclibc installation does not support some needed APIs...
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94 | echo '# CONFIG_NANDWRITE is not set' >>.config
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95 | echo '# CONFIG_NANDDUMP is not set' >>.config
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96 | echo '# CONFIG_BLKDISCARD is not set' >>.config
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97 | echo '# CONFIG_NSENTER is not set' >>.config
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98 | echo '# CONFIG_UNSHARE is not set' >>.config
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99 | fi
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100 |
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101 | # If STATIC, remove some things.
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102 | # PAM with static linking is probably pointless
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103 | # (but I need to try - now I don't have libpam.a on my system, only libpam.so)
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104 | if grep -q "^CONFIG_STATIC=y" .config; then
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105 | cat .config \
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106 | | grep -v CONFIG_PAM \
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107 | >.config.new
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108 | mv .config.new .config
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109 | echo '# CONFIG_PAM is not set' >>.config
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110 | fi
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111 |
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112 | # Regenerate .config with default answers for yanked-off options
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113 | # (most of default answers are "no").
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114 | { yes "" | make oldconfig >/dev/null; } || { echo "oldconfig error"; exit 1; }
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115 |
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116 | # Build!
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117 | nice -n 10 make $MAKEOPTS 2>&1 | tee make.log
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118 | grep 'Rerun make' make.log \
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119 | && nice -n 10 make $MAKEOPTS 2>&1 | tee -a make.log
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120 |
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121 | # Return exitcode 1 if busybox executable does not exist
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122 | test -x busybox
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