annotate scripts/make.sh @ 233:d4176f3f3835

Zap toys/Config.in and instead create generated/Config.in from contents of toys/*.c. Move relevant info into comment at the top of each toys/*.c. Also convert more of Makefile into a thin wrapper around shell scripts that actually do the work. (Makefile is only still there for the user interface.)
author Rob Landley <rob@landley.net>
date Sat, 19 Jan 2008 17:08:39 -0600
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children 163498bf547b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #!/bin/bash
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2
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3 # Grab default values for $CFLAGS and such.
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4
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5 source ./configure
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6
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7 echo "Extract configuration information from toys/*.c files."
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8 scripts/genconfig.sh
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9
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10 # Only recreate generated/help.h if python is installed
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11 if [ ! -z "$(which python)" ] && [ ! -z "$(grep 'CONFIG_HELP=y' .config)" ]
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12 then
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13 echo "Extract help text from Config.in."
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14 scripts/config2help.py Config.in > generated/help.h || exit 1
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15 fi
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16
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17 echo "Make generated/config.h from .config."
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18
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19 # This long and roundabout sed invocation is to make old versions of sed happy.
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20 # New ones have '\n' so can replace one line with two without all the branches
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21 # and tedious mucking about with hold space.
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22
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23 sed -n -e 's/^# CONFIG_\(.*\) is not set.*/\1/' \
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24 -e 't notset' -e 'b tryisset' -e ':notset' \
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25 -e 'h' -e 's/.*/#define CFG_& 0/p' \
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26 -e 'g' -e 's/.*/#define USE_&(...)/p' -e 'd' -e ':tryisset' \
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27 -e 's/^CONFIG_\(.*\)=y.*/\1/' -e 't isset' -e 'd' -e ':isset' \
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28 -e 'h' -e 's/.*/#define CFG_& 1/p' \
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29 -e 'g' -e 's/.*/#define USE_&(...) __VA_ARGS__/p' .config > \
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30 generated/config.h || exit 1
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31
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32 #for i in $(echo toys/*.c | sort)
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33 #do
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34 # Grab the function command names
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35 # NAME=$(echo $i | sed -e 's@toys/@@' -e 's@\.c@@')
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36 #sed -n '/struct '$NAME'_command {/,/};/p' $i \
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37 # >> generated/globals_big.h
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38 # echo "struct ${NAME}_command;" >> generated/globals.h
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39 #done
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40
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41 # Extract a list of toys/*.c files to compile from the data in ".config" with
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42 # sed, sort, and tr:
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43
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44 # 1) Grab the XXX part of all CONFIG_XXX entries, removing everything after the
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45 # second underline
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46 # 2) Sort the list, keeping only one of each entry.
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47 # 3) Convert to lower case.
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48 # 4) Remove toybox itself from the list (as that indicates global symbols).
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49 # 5) Add "toys/" prefix and ".c" suffix.
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50
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51 TOYFILES=$(cat .config | sed -nre 's/^CONFIG_(.*)=y/\1/;t skip;b;:skip;s/_.*//;p' | sort -u | tr A-Z a-z | grep -v '^toybox$' | sed 's@\(.*\)@toys/\1.c@' )
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52
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53 echo "Compile toybox..."
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54
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55 $DEBUG $CC $CFLAGS -I . -o toybox_unstripped $OPTIMIZE main.c lib/*.c $TOYFILES
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56 $DEBUG $STRIP toybox_unstripped -o toybox