mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-26 00:57:39 +03:00
90 lines
2.8 KiB
Awk
90 lines
2.8 KiB
Awk
# Script to preprocess Versions.all lists based on "earliest version"
|
|
# specifications in the shlib-versions file.
|
|
|
|
# Return -1, 0 or 1 according to whether v1 is less than, equal to or
|
|
# greater than v2 as a version string. Simplified from GNU Autoconf
|
|
# version; this one does not need to handle .0x fraction-style versions.
|
|
function vers_compare (v1, v2)
|
|
{
|
|
while (length(v1) && length(v2)) {
|
|
if (v1 ~ /^[0-9]/ && v2 ~ /^[0-9]/) {
|
|
for (len1 = 1; substr(v1, len1 + 1) ~ /^[0-9]/; len1++) continue;
|
|
for (len2 = 1; substr(v2, len2 + 1) ~ /^[0-9]/; len2++) continue;
|
|
d1 = substr(v1, 1, len1); v1 = substr(v1, len1 + 1);
|
|
d2 = substr(v2, 1, len2); v2 = substr(v2, len2 + 1);
|
|
d1 += 0;
|
|
d2 += 0;
|
|
} else {
|
|
d1 = substr(v1, 1, 1); v1 = substr(v1, 2);
|
|
d2 = substr(v2, 1, 1); v2 = substr(v2, 2);
|
|
}
|
|
if (d1 < d2) return -1;
|
|
if (d1 > d2) return 1;
|
|
}
|
|
if (length(v2)) return -1;
|
|
if (length(v1)) return 1;
|
|
return 0;
|
|
}
|
|
|
|
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) {
|
|
f = v = firstversion[thislib, idx[thislib]];
|
|
while (vers_compare($1, v) >= 0) {
|
|
delete firstversion[thislib, idx[thislib]];
|
|
idx[thislib]++;
|
|
if ((thislib, idx[thislib]) in firstversion) {
|
|
# If we're skipping a referenced version to jump ahead to a
|
|
# later version, synthesize the earlier referenced version now.
|
|
if (v != $1 && (thislib, v) in usedversion)
|
|
print " " v;
|
|
v = firstversion[thislib, idx[thislib]];
|
|
} else
|
|
break;
|
|
}
|
|
if ($1 == v || $1 == f)
|
|
# This version was the specified earliest version itself.
|
|
print;
|
|
else if (vers_compare($1, v) < 0) {
|
|
# 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;
|
|
}
|