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When generating the version map file, order versions oldest

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first to make it easier for rtld to choose the oldest version
of a symbol.

Sumbitted by:	kan
This commit is contained in:
Daniel Eischen 2007-04-23 03:24:33 +00:00
parent cc7cd831b2
commit 6f91e7a3af
1 changed files with 36 additions and 19 deletions
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55
share/mk/version_gen.awk
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@ -53,6 +53,7 @@ BEGIN {
symver = $1;
versions[symver] = 1;
successors[symver] = "";
generated[symver] = 0;
version_count++;
}
else if (/^[ \t]*} *[a-zA-Z0-9._]+ *;/) {
@ -141,26 +142,42 @@ BEGIN {
FILENAME, FNR, $0) > stderr;
}
function print_version(v)
{
# This function is recursive, so return if this version
# has already been printed. Otherwise, if there is an
# ancestral version, recursively print its symbols before
# printing the symbols for this version.
#
if (generated[v] == 1)
return;
if (successors[v] != "")
print_version(successors[v]);
printf("%s {\n", v);
# The version count is always one more that actual,
# so the loop ranges from 1 to n-1.
#
for (i = 1; i < versions[v]; i++) {
if (i == 1)
printf("global:\n");
printf("\t%s\n", symbols[v, i]);
}
if (successors[v] == "") {
# This version succeeds no other version.
printf("local:\n");
printf("\t*;\n");
printf("};\n");
}
else
printf("} %s;\n", successors[v]);
printf("\n");
generated[v] = 1;
}
END {
for (v in versions) {
printf("\n");
printf("%s {\n", v);
# The version count is always one more that actual,
# so the loop ranges from 1 to n-1.
#
for (i = 1; i < versions[v]; i++) {
if (i == 1)
printf("global:\n");
printf("\t%s\n", symbols[v, i]);
}
if (successors[v] == "") {
# This version succeeds no other version.
printf("local:\n");
printf("\t*;\n");
printf("};\n");
}
else
printf("} %s;\n", successors[v]);
print_version(v);
}
}