Mercurial > hg > toybox
annotate scripts/genconfig.sh @ 1259:565980862743 draft
Probes for O_NOFOLLOW that compile and run something aren't compatible with cross compiling, so just #define it to 0 if it's not in fcntl.h where posix-2008 says.
author | Rob Landley <rob@landley.net> |
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date | Tue, 15 Apr 2014 21:59:42 -0500 |
parents | a612857eb52d |
children | 0ce03bb85ebd |
rev | line source |
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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 |
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8 source configure |
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9 |
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10 probeconfig() |
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11 { |
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12 # Probe for container support on target |
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13 |
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14 echo -e "# container support\nconfig TOYBOX_CONTAINER\n\tbool" || return 1 |
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15 ${CROSS_COMPILE}${CC} $CFLAGS -xc -o /dev/null - 2>/dev/null << EOF |
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16 #include <linux/sched.h> |
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17 int x=CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET; |
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18 |
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19 int main(int argc, char *argv[]) { return unshare(x); } |
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20 EOF |
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21 [ $? -eq 0 ] && DEFAULT=y || DEFAULT=n |
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22 rm a.out 2>/dev/null |
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23 echo -e "\tdefault $DEFAULT\n" || return 1 |
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24 } |
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25 |
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26 genconfig() |
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27 { |
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28 # I could query the directory here, but I want to control the order |
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29 # and capitalization in the menu |
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30 for j in toys/*/README |
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31 do |
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32 DIR="$(dirname "$j")" |
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33 |
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34 [ $(ls "$DIR" | wc -l) -lt 2 ] && continue |
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35 |
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36 echo "menu \"$(head -n 1 $j)\"" |
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37 echo |
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38 |
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39 # extract config stanzas from each source file, in alphabetical order |
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40 for i in $(ls -1 $DIR/*.c) |
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41 do |
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42 # Grab the config block for Config.in |
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43 echo "# $i" |
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44 sed -n '/^\*\//q;/^config [A-Z]/,$p' $i || return 1 |
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45 echo |
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46 done |
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47 |
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48 echo endmenu |
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49 done |
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50 } |
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51 |
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52 probeconfig > generated/Config.probed || rm generated/Config.probed |
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53 genconfig > generated/Config.in || rm generated/Config.in |