| #!/bin/bash |
| |
| # This has to be a separate file from scripts/make.sh so it can be called |
| # before menuconfig. (It's called again from scripts/make.sh just to be sure.) |
| |
| mkdir -p generated |
| |
| source configure |
| |
| # Probe for a single config symbol with a "compiles or not" test. |
| # Symbol name is first argument, flags second, feed C file to stdin |
| probesymbol() |
| { |
| ${CROSS_COMPILE}${CC} $CFLAGS -xc -o /dev/null $2 - 2>/dev/null |
| [ $? -eq 0 ] && DEFAULT=y || DEFAULT=n |
| rm a.out 2>/dev/null |
| echo -e "config $1\n\tbool" || exit 1 |
| echo -e "\tdefault $DEFAULT\n" || exit 1 |
| } |
| |
| probeconfig() |
| { |
| # Probe for container support on target |
| probesymbol TOYBOX_CONTAINER << EOF |
| #include <linux/sched.h> |
| int x=CLONE_NEWNS|CLONE_NEWUTS|CLONE_NEWIPC|CLONE_NEWNET; |
| |
| int main(int argc, char *argv[]) { return unshare(x); } |
| EOF |
| |
| probesymbol TOYBOX_FIFREEZE -c << EOF |
| #include <linux/fs.h> |
| #ifndef FIFREEZE |
| #error nope |
| #endif |
| EOF |
| |
| # Hard to come by in uClibc. |
| probesymbol TOYBOX_ICONV -c << EOF |
| #include "iconv.h" |
| EOF |
| } |
| |
| genconfig() |
| { |
| # Reverse sort puts posix first, examples last. |
| for j in $(ls toys/*/README | sort -r) |
| do |
| DIR="$(dirname "$j")" |
| |
| [ $(ls "$DIR" | wc -l) -lt 2 ] && continue |
| |
| echo "menu \"$(head -n 1 $j)\"" |
| echo |
| |
| # extract config stanzas from each source file, in alphabetical order |
| for i in $(ls -1 $DIR/*.c) |
| do |
| # Grab the config block for Config.in |
| echo "# $i" |
| sed -n '/^\*\//q;/^config [A-Z]/,$p' $i || return 1 |
| echo |
| done |
| |
| echo endmenu |
| done |
| } |
| |
| probeconfig > generated/Config.probed || rm generated/Config.probed |
| genconfig > generated/Config.in || rm generated/Config.in |