#! /bin/sh
#
# mkbltnmlst.sh: generate boot code for linked-in modules
#
# Written by Andrew Main
#

srcdir=${srcdir-`echo $0|sed 's%/[^/][^/]*$%%'`}
test "x$srcdir" = "x$0" && srcdir=.
test "x$srcdir" = "x"   && srcdir=.
MODBINS=${MODBINS-modules-bltin}
XMODCF=${XMODCF-$srcdir/xmods.conf}

bin_mods=" zsh/main "`sed 's/^/ /;s/$/ /' $MODBINS`
x_mods=`sed 's/^.* //' $XMODCF`
. ./modules.index

trap "rm -f $1; exit 1" 1 2 15

exec > $1

for x_mod in $x_mods; do
    q_x_mod=`echo $x_mod | sed 's,Q,Qq,g;s,_,Qu,g;s,/,Qs,g'`
    eval "modfile=\$modfile_$q_x_mod"
    if test "x$modfile" = x; then
	echo >&2 "WARNING: $XMODCF lists non-existent module \`$x_mod' (ignored)"
	continue
    fi
    case "$bin_mods" in
    *" $x_mod "*)
        echo "/* linked-in known module \`$x_mod' */"
	linked=yes
	;;
    *)
        echo "#ifdef DYNAMIC"
        echo "/* non-linked-in known module \`$x_mod' */"
	linked=no
    esac
    unset moddeps autobins autoinfixconds autoprefixconds autoparams
    unset automathfuncs
    . $srcdir/../$modfile
    for bin in $autobins; do
	echo "    add_autobin(\"$bin\", \"$x_mod\");"
    done
    for cond in $autoinfixconds; do
	echo "    add_autocond(\"$cond\", 1, \"$x_mod\");"
    done
    for cond in $autoprefixconds; do
	echo "    add_autocond(\"$cond\", 0, \"$x_mod\");"
    done
    for param in $autoparams; do
	echo "    add_autoparam(\"$param\", \"$x_mod\");"
    done
    for mfunc in $automathfuncs; do
	echo "    add_automath(\"$mfunc\", \"$x_mod\");"
    done
    for dep in $moddeps; do
	echo "    add_dep(\"$x_mod\", \"$dep\");"
    done
    test "x$linked" = xno && echo "#endif"
done

echo
done_mods=" "
for bin_mod in $bin_mods; do
    q_bin_mod=`echo $bin_mod | sed 's,Q,Qq,g;s,_,Qu,g;s,/,Qs,g'`
    echo "/* linked-in module \`$bin_mod' */"
    eval "modfile=\$modfile_$q_bin_mod"
    unset moddeps
    . $srcdir/../$modfile
    for dep in $moddeps; do
	case $done_mods in
	    *" $dep "*)
		echo "    /* depends on \`$dep' */" ;;
	    *)	echo >&2 "ERROR: linked-in module \`$bin_mod' depends on \`$dep'"
		rm -f $1
		exit 1 ;;
	esac
    done
    echo "    {"
    echo "        extern int setup_${q_bin_mod} _((Module));"
    echo "        extern int boot_${q_bin_mod} _((Module));"
    echo "        extern int cleanup_${q_bin_mod} _((Module));"
    echo "        extern int finish_${q_bin_mod} _((Module));"
    echo
    echo "        register_module(\"$bin_mod\","
    echo "                        setup_${q_bin_mod}, boot_${q_bin_mod},"
    echo "                        cleanup_${q_bin_mod}, finish_${q_bin_mod});"
    echo "    }"
    done_mods="$done_mods$bin_mod "
done