d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

When generating the version map file, order versions oldest

Browse Source 
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
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=168963
1 changed files with 36 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
share/mk/version_gen.awk
View File

@ -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);
}
}