genconfig.sh revision 3a9241add947cb6d24b5de7a8927517426a78795 
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
6mkdir -p generated
7OUTFILE=generated/Config.in
8
9source configure
10
11probeconfig()
12{
13  # Probe for container support on target
14
15  echo -e "# container support\nconfig TOYBOX_CONTAINER\n\tbool" || return 1
16  ${CROSS_COMPILE}${CC} -xc -o /dev/null - 2>/dev/null << EOF
17    #include <linux/sched.h>
18    int x=CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET;
19
20    int main(int argc, char *argv[]) { return unshare(x); }
21EOF
22  [ $? -eq 0 ] && DEFAULT=y || DEFAULT=n
23  rm a.out 2>/dev/null
24  echo -e "\tdefault $DEFAULT\n" || return 1
25}
26
27genconfig()
28{
29  # I could query the directory here, but I want to control the order
30  # and capitalization in the menu
31  for j in Posix LSB Other
32  do
33    echo "menu \"$j commands\""
34    echo
35
36    DIR=$(echo $j | tr A-Z a-z)
37
38    # extract config stanzas from each source file, in alphabetical order
39    for i in $(ls -1 toys/$DIR/*.c)
40    do
41      # Grab the config block for Config.in
42      echo "# $i"
43      sed -n '/^\*\//q;/^config [A-Z]/,$p' $i || return 1
44      echo
45    done
46
47    echo endmenu
48  done
49}
50
51probeconfig > generated/Config.probed || rm generated/Config.probed
52genconfig > generated/Config.in || rm generated/Config.in
53