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annotate scripts/genconfig.sh @ 552:7b85b0a0e9c0

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Have probe for unshare test for actual unshare() function in libc.
author Rob Landley <rob@landley.net>
date Mon, 19 Mar 2012 20:15:08 -0500
parents c6b3bd689d0a
children 2986aa63a021
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d4176f3f3835 Zap toys/Config.in and instead create generated/Config.in from contents of
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1 #!/bin/bash
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2
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3 # This has to be a separate file from scripts/make.sh so it can be called
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4 # before menuconfig. (It's called again from scripts/make.sh just to be sure.)
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5
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6 mkdir -p generated
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7 OUTFILE=generated/Config.in
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8
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8f5780dd6da4 The unshare test needs $CC defined, source configure to get it.
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9 source configure
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11 probeconfig()
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12 {
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13 # Probe for container support on target
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15 echo -e "# container support\nconfig TOYBOX_CONTAINER\n\tbool" || return 1
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16 ${CROSS_COMPILE}${CC} -xc -o /dev/null - 2>/dev/null << EOF
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17 #include <linux/sched.h>
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18 int x=CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET;
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19
7b85b0a0e9c0 Have probe for unshare test for actual unshare() function in libc.
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20 int main(int argc, char *argv[]) { return unshare(x); }
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21 EOF
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22 [ $? -eq 0 ] && DEFAULT=y || DEFAULT=n
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23 rm a.out 2>/dev/null
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24 echo -e "\tdefault $DEFAULT\n" || return 1
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25 }
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27 genconfig()
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28 {
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29 # extract config stanzas from each command source file, in alphabetical order
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30
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31 for i in $(ls -1 toys/*.c)
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32 do
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33 # Grab the config block for Config.in
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34 echo "# $i"
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35 sed -n '/^\*\//q;/^config [A-Z]/,$p' $i || return 1
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36 echo
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37 done
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38 }
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39
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40 probeconfig > generated/Config.probed || rm generated/Config.probed
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41 genconfig > generated/Config.in || rm generated/Config.in