In message <20030113110036.A873@twiddle.net> you write:
> I discovered this while working on oprofile for Alpha. I thought
> I'd avoid a whole series of nested ifdefs by marking some symbols
> weak, and so let them go undefined and resolve to null. Except
> that we don't handle that in the new module loader.
>
> Fixed thus.
That part looks OK. The second loop was only there so we placed
common symbols first: now we don't do that, your cleanup is a good
idea. I'll extract and test that part.
>
> I also correct a misconception in simplify_symbol. It is pointless
> to lookup an undefined symbol in the module in which it is undefined.
<sigh>. I don't think so.
PPC64 (not in tree yet):
+ /* REL24 references to (external) .function won't
+ resolve; deal with that below */
+ if (!sym->st_value
+ && ELF64_R_TYPE(rela[i].r_info) != R_PPC_REL24) {
+ printk("%s: Unknown symbol %s (index %u)\n",
+ me->name, strtab + sym->st_name,
+ sym->st_shndx);
+ return -ENOENT;
+ }
That's *why* find_symbol_internal() is not static, and why we don't
fail in simplify_symbol() 8(
Hope that clarifies,
Rusty.
-- Anyone who quotes me in their sig is an idiot. -- Rusty Russell. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Jan 15 2003 - 22:00:48 EST