Date: Thu, 15 Jul 2010 22:36:04 +0400 From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-hackers@freebsd.org, Dmitry Krivenok <krivenok.dmitry@gmail.com> Subject: Re: Kernel linker and undefined references in KLD Message-ID: <4C3F5514.70308@yandex.ru> In-Reply-To: <20100715143235.GU2381@deviant.kiev.zoral.com.ua> References: <AANLkTikhrbdbBEFl-I97nBzdvZx6qBaafDUsveRmYyp3@mail.gmail.com> <20100715143235.GU2381@deviant.kiev.zoral.com.ua>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigD51D48E71C3208D4A04FD9C7 Content-Type: text/plain; charset=KOI8-R Content-Transfer-Encoding: quoted-printable On 15.07.2010 18:32, Kostik Belousov wrote: > The kernel linker ignores weak attribute of the symbol, as you see. > There is more bugs in this department, in regard of the list of > exported symbols from the modules. >=20 > I have a patch that fixes the issues, but I am leery to commit it, sinc= e > the fix effectively breaks significant set of the modules. Hi, Kostik i want to remind that some time ago there was a report about another bug. #include <sys/param.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/systm.h> static int tst_modevent(module_t mod, int type, void *unused) { switch (type) { case MOD_LOAD: return (EINVAL); case MOD_UNLOAD: break; }; return (0); } static moduledata_t tstmod =3D { "tst", tst_modevent, 0 }; DECLARE_MODULE(tst, tstmod, SI_SUB_ROOT_CONF, SI_ORDER_ANY); # kldload -v ./tst.ko Loaded ./tst.ko, id=3D16 I think loading of this module should be rejected on MOD_LOAD, but it doesn't. --=20 WBR, Andrey V. Elsukov --------------enigD51D48E71C3208D4A04FD9C7 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iQEcBAEBAgAGBQJMP1UUAAoJEAHF6gQQyKF67oQH/0xHmFc9+XAFCvqxAxYYyi4O ngaGasxW34/Jwpu9txBFkY/jeSGCv81ZPi/yfAxP956pbp6Fbv60/eR8gnZhvAnI 6N0KZ/fal9YgGTMwmgiERvF1oz5C4ydpn/MsEEMTk7XbC22KRIiGIZiFWyj9O0Fg JGcXt7zoMqlI3joSIXmy3W1qiMSjV5Vo1FjcY9ZGomvyfbR3wZL+5HiXG1GQdAOV SrJrYPvOcRSLev+5/GByueYAKfNR4O0FdF+EJohnrB8RfnCvQE81LlOxmevr4q6T WzBoNQvNDABmpAzlxDjM0yzVULTXkOEE5OdnObDIh8s5RwLSA+8yXmYCeD3qnfQ= =pwAX -----END PGP SIGNATURE----- --------------enigD51D48E71C3208D4A04FD9C7--
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