grub/genmoddep.awk
2009-10-10 13:30:14 +02:00

62 lines
1.4 KiB
Awk

#! /usr/bin/awk -f
#
# Copyright (C) 2006 Free Software Foundation, Inc.
#
# This genmoddep.awk is free software; the author
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
# Read defined symbols from stdin.
BEGIN {
while (getline <"/dev/stdin") {
symtab[$1] = $2
}
}
# The first line contains a module name.
FNR == 1 {
module = $1
next
};
# The rest is undefined symbols.
{
if ($1 in symtab) {
modtab[module] = modtab[module] " " symtab[$1];
}
else if ($1 != "__gnu_local_gp"){
printf "%s in %s is not defined\n", $1, module >"/dev/stderr";
error++;
exit;
}
}
# Output the result.
END {
if (error == 1)
exit 1;
for (mod in modtab) {
# Remove duplications.
split(modtab[mod], depmods, " ");
for (depmod in uniqmods) {
delete uniqmods[depmod];
}
for (i in depmods) {
depmod = depmods[i];
# Ignore kernel, as always loaded.
if (depmod != "kernel" && depmod != mod)
uniqmods[depmod] = 1;
}
modlist = ""
for (depmod in uniqmods) {
modlist = modlist " " depmod;
}
printf "%s:%s\n", mod, modlist;
}
}