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annotate sources/include.sh @ 553:80f3356577fc

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Move kernel building from mini-native to package-mini-native in preparation for initramfs packaging option.
author Rob Landley <rob@landley.net>
date Sat, 27 Dec 2008 06:21:42 -0600
parents 808ba1d186ac
children 036dbe218036
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1 #!/bin/bash
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2
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4e11cfb255e2 Break config out from include.sh, so environment variables users can edit to affect the build are collected together in one place with nothing else in it.
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4 [ -e config ] && source config
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5
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6 source sources/functions.sh
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7
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8 # What host compiler should we use?
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9
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10 [ -z "$CC" ] && CC=gcc
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11
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12 # How many processors should make -j use?
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13
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14 if [ -z "$CPUS" ]
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15 then
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16 export CPUS=$(echo /sys/devices/system/cpu/cpu[0-9]* | wc -w)
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17 [ "$CPUS" -lt 1 ] && CPUS=1
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18 fi
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19
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20 umask 022
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21 unset CFLAGS CXXFLAGS
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22
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23 # Find/create directories
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24
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25 TOP=`pwd`
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26 export SOURCES="${TOP}/sources"
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27 export SRCDIR="${SOURCES}/packages"
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28 export FROMSRC=../packages
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29 export BUILD="${TOP}/build"
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30 export HOSTTOOLS="${BUILD}/host"
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31
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32 [ -z "$WRAPPY_LOGDIR" ] && WRAPPY_LOGDIR="$BUILD"
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33
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34 # Adjust $PATH
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35
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36 if [ "$PATH" != "$HOSTTOOLS" ]
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37 then
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38 if [ -f "$HOSTTOOLS/busybox" ]
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39 then
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40 PATH="$HOSTTOOLS"
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41 else
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42 PATH="${HOSTTOOLS}:$PATH"
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43 fi
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44 fi
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45
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46 STAGE_NAME=`echo $0 | sed 's@.*/\(.*\)\.sh@\1@'`
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47 export WRAPPY_LOGPATH="$WRAPPY_LOGDIR/cmdlines.${STAGE_NAME}.setupfor"
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48 if [ -f "$BUILD/wrapdir/wrappy" ]
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49 then
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50 export WRAPPY_REALPATH="$PATH"
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51 PATH="$BUILD/wrapdir"
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52 fi
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53
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54 mkdir -p "${SRCDIR}" || dienow
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55
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56 # Tell bash not to cache the $PATH because we modify it. Without this, bash
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57 # won't find new executables added after startup.
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58 set +h
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59
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60 # Get target platform from first command line argument.
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61
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62 if [ -z "$NO_ARCH" ]
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63 then
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64 ARCH_NAME="$1"
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65 ARCH="$(echo "$1" | sed 's@.*/@@')"
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66 if [ ! -f "${TOP}/sources/targets/${ARCH}/details" ]
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67 then
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68 echo "Supported architectures: "
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69 (cd "${TOP}/sources/targets" && ls)
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70 exit 1
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71 fi
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73 # Read the relevant config file.
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74
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75 CONFIG_DIR="${TOP}/sources/targets/${ARCH}"
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76 source "${CONFIG_DIR}/details"
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77
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78 # Which platform are we building for?
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79
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80 export WORK="${BUILD}/temp-$ARCH"
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81 rm -rf "${WORK}"
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82 mkdir -p "${WORK}" || dienow
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83
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84 # Say "unknown" in two different ways so it doesn't assume we're NOT
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85 # cross compiling when the host and target are the same processor. (If host
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86 # and target match, the binutils/gcc/make builds won't use the cross compiler
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87 # during mini-native.sh, and the host compiler links binaries against the
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88 # wrong libc.)
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89 [ -z "$CROSS_HOST" ] && export CROSS_HOST=`uname -m`-walrus-linux
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90 [ -z "$CROSS_TARGET" ] && export CROSS_TARGET=${ARCH}-unknown-linux
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91
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92 # Setup directories and add the cross compiler to the start of the path.
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93
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94 export CROSS="${BUILD}/cross-compiler-$ARCH"
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95 export NATIVE="${BUILD}/mini-native-$ARCH"
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96 export PATH="${CROSS}/bin:$PATH"
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97 else
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98 ARCH_NAME=host
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99 export WORK="${BUILD}/host-temp"
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100 mkdir -p "${WORK}" || dienow
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101 fi
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102
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103 if [ ! -z "${NATIVE_TOOLSDIR}" ]
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104 then
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105 TOOLS="${NATIVE}/tools"
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106 else
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107 TOOLS="${NATIVE}/usr"
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108 fi