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# Script to preprocess Versions.all lists based on "earliest version"
# specifications in the shlib-versions file.
NF > 2 && $2 == ":" {
for (i = 0; i <= NF - 3; ++i)
firstversion[$1, i] = $(3 + i);
idx[$1] = 0;
next;
}
NF == 2 && $2 == "{" { thislib = $1; print; next }
$1 == "}" {
if ((thislib, idx[thislib]) in firstversion) {
# We haven't seen the stated version, but have produced
# others pointing to it, so we synthesize it now.
printf " %s\n", firstversion[thislib, idx[thislib]];
idx[thislib]++;
}
print;
next;
}
/GLIBC_PRIVATE/ { print; next }
{
if ((thislib, idx[thislib]) in firstversion) {
# XXX relative string comparison loses if we ever have multiple digits
# between dots in GLIBC_x.y[.z] names.
f = v = firstversion[thislib, idx[thislib]];
while ($1 >= v) {
delete firstversion[thislib, idx[thislib]];
idx[thislib]++;
if ((thislib, idx[thislib]) in firstversion)
v = firstversion[thislib, idx[thislib]];
else
break;
}
if ($1 == v || $1 == f)
# This version was the specified earliest version itself.
print;
else if ($1 < v) {
# This version is older than the specified earliest version.
print " " $1, "=", v;
# Record that V has been referred to, so we will be sure to emit it
# if we hit a later one without hitting V itself.
usedversion[thislib, v] = 1;
}
else {
# This version is newer than the specified earliest version.
# We haven't seen that version itself or else we wouldn't be here
# because we would have removed it from the firstversion array.
# If there were any earlier versions that used that one, emit it now.
if ((thislib, v) in usedversion) {
print " " v;
}
print " " $1;
}
}
else
print;
}
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