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annotate sources/native/sbin/init.sh @ 863:4bfe2b34dd9f

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Largeish refactoring/simplification of run-emulator.sh and associated code. Now automatically sets up the distcc trick if the appropriate $ARCH-cc toolchain is in the $PATH (or the current directory).
author Rob Landley <rob@landley.net>
date Mon, 26 Oct 2009 06:09:29 -0500
parents f448815e20b0
children b0aeb3446aa5
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db06a8c1bfed Lots of changes to move buildall.sh functionality into build.sh.
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1 #!/bin/sh
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3 # Otherwise, building source packages wants things like /bin/bash and
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4 # running the results wants /lib/ld-uClibc.so.0, so set up some directories
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5 # and symlinks to let you easily compile source packages.
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6
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7 export HOME=/home
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8
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9 # Populate /dev
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10 mountpoint -q sys || mount -t sysfs sys sys
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78cbd428d60e Feed noatime flag to init.sh mounts.
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11 mountpoint -q dev || mount -t tmpfs -o noatime dev dev
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12 mdev -s
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13
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14 # Make sure /proc is there
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15 mountpoint -q proc || mount -t proc proc proc
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17 # If we're running under qemu, do some more setup
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18 if [ $$ -eq 1 ]
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19 then
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21 # Note that 10.0.2.2 forwards to 127.0.0.1 on the host.
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22
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23 # Setup networking for QEMU (needs /proc)
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24 ifconfig eth0 10.0.2.15
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25 route add default gw 10.0.2.2
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27 # If we have no RTC, try rdate instead:
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a0a26ea9299d Use -lt to more reliably compare numbers in shell script.
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28 [ `date +%s` -lt 1000 ] && rdate 10.0.2.2 # or time-b.nist.gov
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30 mount -t tmpfs /tmp /tmp
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32 # If there's a /dev/hdb or /dev/sdb, mount it on home
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34 [ -b /dev/hdb ] && HOMEDEV=/dev/hdb
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35 [ -b /dev/sdb ] && HOMEDEV=/dev/sdb
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36 if [ ! -z "$HOMEDEV" ]
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37 then
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38 mount -o noatime $HOMEDEV /home
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39 else
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40 mount -t tmpfs /home /home
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41 fi
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42 cd /home
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43
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44 [ -b /dev/hdc ] && MNTDEV=/dev/hdc
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45 [ -b /dev/sdc ] && MNTDEV=/dev/sdc
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46 if [ ! -z "$MNTDEV" ]
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47 then
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48 mount -o ro $MNTDEV /mnt
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49 fi
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51 CONSOLE="$(dmesg |
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52 sed -n '/^Kernel command line:/s@.* console=\(/dev/\)*\([^ ]*\).*@\2@p')"
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54 if [ -z "$DISTCC_HOSTS" ]
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55 then
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56 echo "Not using distcc."
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57 else
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58 echo "Distcc acceleration enabled."
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59 fi
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60 echo Type exit when done.
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62 HANDOFF=/bin/ash
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63 [ -e /mnt/init ] && HANDOFF=/mnt/init
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64 exec /bin/oneit -c /dev/"$CONSOLE" "$HANDOFF"
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66 # If we're not PID 1, it's probably a chroot.
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67 else
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68 [ ! -z $(grep "default for QEMU" /etc/resolv.conf) ] &&
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69 echo "nameserver 4.2.2.1" > /etc/resolv.conf
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71 # Switch to a shell with command history.
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73 echo Type exit when done.
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74 /bin/ash
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75 cd /
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76 umount ./dev
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77 umount ./home
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78 umount ./sys
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79 umount ./proc
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80 sync
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81 fi