https://sourceware.org/bugzilla/show_bug.cgi?id=18703
--- Comment #6 from Cary Coutant <ccoutant at gmail dot com> ---
> Another usage of the '.symver' directive is:
> .symver NAME, NAME2@@NODENAME
> In this case, the symbol NAME must exist and be defined within the
> file being assembled. It is similar to NAME2@NODENAME. The difference
> is NAME2@@NODENAME will also be used to resolve references to NAME2 by
> the linker.
>
> Linker shouldn't use foo@VERS_1.1 to resolve references to foo.
Yes, I understand that much. The example given uses:
.symver foo, foo@VERS_1.1
where the original symbol and the versioned symbol both have the same
name. This produces two symbols in the .o file named "foo":
0000000000000000 T foo
0000000000000000 T foo@VERS_1.1
With the version script, gold sees the first of those (plain "foo")
and makes it the default version (as, I think, it should). The second
one is just seen as a second declaration, but it's already been marked
the default.
If I change Sri's example to use ".symver orig_foo, foo@VERS_1.1" and
rename "foo" to "orig_foo", I get the following in the dynamic symbol
table:
6: 0000000000000725 11 FUNC GLOBAL DEFAULT 12 foo@VERS_1.1
7: 0000000000000725 11 FUNC GLOBAL DEFAULT 12 orig_foo
If it's the "@@" vs. "@" that's causing the problem, then there's your fix.
-cary
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