LXR toybox/scripts/genconfig.sh

   1#!/bin/bash
   2
   3# This has to be a separate file from scripts/make.sh so it can be called
   4# before menuconfig. (It's called again from scripts/make.sh just to be sure.)
   5
   6source scripts/portability.sh
   7
   8mkdir -p "$GENDIR"
   9
  10probecc()
  11{
  12  ${CROSS_COMPILE}${CC} $CFLAGS $LDFLAGS -xc -o /dev/null - "$@"
  13}
  14
  15# Probe for a single config symbol with a "compiles or not" test.
  16# Symbol name is first argument, flags second, feed C file to stdin
  17probesymbol()
  18{
  19  probecc "${@:2}" 2>/dev/null && DEFAULT=y || DEFAULT=n
  20  rm a.out 2>/dev/null
  21  echo -e "config $1\n\tbool\n\tdefault $DEFAULT\n" || exit 1
  22}
  23
  24probeconfig()
  25{
  26  # Some commands are android-specific
  27  probesymbol TOYBOX_ON_ANDROID -c << EOF
  28    #ifndef __ANDROID__
  29    #error nope
  30    #endif
  31EOF
  32
  33  # nommu support
  34  probesymbol TOYBOX_FORK << EOF
  35    #include <unistd.h>
  36    int main(int argc, char *argv[]) { return fork(); }
  37EOF
  38  echo -e '\tdepends on !TOYBOX_FORCE_NOMMU'
  39}
  40
  41genconfig()
  42{
  43  # Reverse sort puts posix first, examples last.
  44  for j in $(ls toys/*/README | sort -s -r)
  45  do
  46    DIR="$(dirname "$j")"
  47
  48    [ $(ls "$DIR" | wc -l) -lt 2 ] && continue
  49
  50    echo "menu \"$(head -n 1 $j)\""
  51    echo
  52
  53    # extract config stanzas from each source file, in alphabetical order
  54    for i in $(ls -1 $DIR/*.c)
  55    do
  56      # Grab the config block for Config.in
  57      echo "# $i"
  58      $SED -n '/^\*\//q;/^config [A-Z]/,$p' $i || return 1
  59      echo
  60    done
  61
  62    echo endmenu
  63  done
  64}
  65
  66probeconfig > "$GENDIR"/Config.probed || rm "$GENDIR"/Config.probed
  67genconfig > "$GENDIR"/Config.in || rm "$GENDIR"/Config.in
  68
  69# Find names of commands that can be built standalone in these C files
  70toys()
  71{
  72  grep 'TOY(.*)' "$@" | grep -v TOYFLAG_NOFORK | grep -v "0))" | \
  73    $SED -En 's/([^:]*):.*(OLD|NEW)TOY\( *([a-zA-Z][^,]*) *,.*/\1:\3/p'
  74}
  75
  76WORKING= PENDING= EXAMPLE=
  77toys toys/*/*.c | (
  78while IFS=":" read FILE NAME
  79do
  80  [ "$NAME" == help ] && continue
  81  [ "$NAME" == install ] && continue
  82  [ "$NAME" == sh ] && FILE="toys/*/*.c"
  83  echo -e "$NAME: $FILE *.[ch] lib/*.[ch]\n\tscripts/single.sh $NAME\n"
  84  echo -e "test_$NAME:\n\tscripts/test.sh $NAME\n"
  85  [ "${FILE/example//}" != "$FILE" ] && EXAMPLE="$EXAMPLE $NAME" ||
  86  [ "${FILE/pending//}" != "$FILE" ] && PENDING="$PENDING $NAME" ||
  87    WORKING="$WORKING $NAME"
  88done &&
  89echo -e "clean::\n\t@rm -f $WORKING $PENDING" &&
  90echo -e "list:\n\t@echo $(echo $WORKING | tr ' ' '\n' | sort | xargs)" &&
  91echo -e "list_example:\n\t@echo $(echo $EXAMPLE | tr ' ' '\n' | sort | xargs)"&&
  92echo -e "list_pending:\n\t@echo $(echo $PENDING | tr ' ' '\n' | sort | xargs)"&&
  93echo -e ".PHONY: $WORKING $PENDING" | $SED 's/ \([^ ]\)/ test_\1/g'
  94) > .singlemake
  95