Date: Sat, 16 Apr 2005 00:04:55 +0200 From: Roland Smith <rsmith@xs4all.nl> To: freebsd-amd64@freebsd.org Subject: Re: INCLUDE_CONFIG_FILE broken? Message-ID: <20050415220455.GB1698@slackbox.xs4all.nl> In-Reply-To: <200504151227.45697.peter@wemm.org> References: <E1DEjZu-0007MN-RR@cs1.cs.huji.ac.il> <86k6ntw6f8.fsf@xps.des.no> <200504151227.45697.peter@wemm.org>
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--lEGEL1/lMxI0MVQ2 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Apr 15, 2005 at 12:27:44PM -0700, Peter Wemm wrote: > On Sunday 27 March 2005 05:43 am, Dag-Erling Sm=F8rgrav wrote: > > Danny Braniss <danny@cs.huji.ac.il> writes: > > > it seems that options INCLUDE_CONFIG_FILE in the kernel conf. file > > > does not work: > > > > > > strings -n 3 /boot/kernel/kernel | sed -n 's/^___//p' > > > _````QQQQ > > > _ > > > > The compiler optimizes it away because it's declared static. I have > > no idea why this wasn't a problem before; probably a change in > > compiler flags or in the compiler itself. > > > > DES >=20 > gcc-3.4 does entire-file optimization, while 3.3 and earlier look at > functions at a time. As a result, gcc is now very good at finding > static unused things. >=20 > We might need to do something different. I'd almost like to insert > the config file into its own ELF section via objcopy... Why not use gcc's __attribute__ ((unused))? Roland --=20 R.F. Smith /"\ ASCII Ribbon Campaign r s m i t h @ x s 4 a l l . n l \ / No HTML/RTF in e-mail http://www.xs4all.nl/~rsmith/ X No Word docs in e-mail public key: http://www.keyserver.net / \ Respect for open standards --lEGEL1/lMxI0MVQ2 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCYDqHEnfvsMMhpyURAtFrAJ9C1HBjicTHaOIDlBDgd+BKDRbVugCeN/uK iJ6mvSMSAOW2nmIhQAy2h9A= =t7wW -----END PGP SIGNATURE----- --lEGEL1/lMxI0MVQ2--
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