Date: Fri, 7 Jan 2011 19:26:04 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Ben Kaduk <minimarmot@gmail.com> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r217097 - in head/sys: amd64/include arm/include i386/include ia64/include mips/include powerpc/include sparc64/include sun4v/include Message-ID: <20110107172604.GC12599@deviant.kiev.zoral.com.ua> In-Reply-To: <AANLkTinXfzA4wxWJ5X0i_0dHx7Gag2dAfE0CZgP9D7gh@mail.gmail.com> References: <201101071422.p07EMYlP055071@svn.freebsd.org> <AANLkTinXfzA4wxWJ5X0i_0dHx7Gag2dAfE0CZgP9D7gh@mail.gmail.com>
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--nG7dHWd/DOCuxGWF Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jan 07, 2011 at 12:02:55PM -0500, Ben Kaduk wrote: > On Fri, Jan 7, 2011 at 9:22 AM, Konstantin Belousov <kib@freebsd.org> wro= te: > > Author: kib > > Date: Fri Jan =9A7 14:22:34 2011 > > New Revision: 217097 > > URL: http://svn.freebsd.org/changeset/base/217097 > > > > Log: > > =9AAdd AT_STACKPROT elf aux vector. Will be used to inform rtld about t= he > > =9Ainitial stack protection set by the kernel image activator. > > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > > --- head/sys/amd64/include/elf.h =9A =9A =9A =9AFri Jan =9A7 14:17:29 2= 011 =9A =9A =9A =9A(r217096) > > +++ head/sys/amd64/include/elf.h =9A =9A =9A =9AFri Jan =9A7 14:22:34 2= 011 =9A =9A =9A =9A(r217097) > > @@ -94,8 +94,9 @@ __ElfType(Auxinfo); > > =9A#define =9A =9A =9A =9AAT_NCPUS =9A =9A =9A =9A19 =9A =9A =9A/* Numb= er of CPUs. */ > > =9A#define =9A =9A =9A =9AAT_PAGESIZES =9A =9A20 =9A =9A =9A/* Pagesize= s. */ > > =9A#define =9A =9A =9A =9AAT_PAGESIZESLEN 21 =9A =9A =9A/* Number of pa= gesizes. */ > > +#define =9A =9A =9A =9AAT_STACKPROT =9A =9A23 =9A =9A =9A/* Initial st= ack protection. */ > > > > -#define =9A =9A =9A =9AAT_COUNT =9A =9A =9A =9A22 =9A =9A =9A/* Count = of defined aux entry types. */ > > +#define =9A =9A =9A =9AAT_COUNT =9A =9A =9A =9A24 =9A =9A =9A/* Count = of defined aux entry types. */ >=20 >=20 > Is there a reason to skip 22? Yes, I can swear that I saw the reference that stated that even aux vector types are used for Elf_Auxinfo.a_un.a_ptr, and odd are for a_val. I already received a private inquiry about the same issue, probably had to note this in the commit message. --nG7dHWd/DOCuxGWF Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk0nTKsACgkQC3+MBN1Mb4i1RgCg3dyYIrpd6/gjKcqNEAQOZoKD g/kAoKsfMgou+N9neVYekaMg8c9X/i/L =Aas4 -----END PGP SIGNATURE----- --nG7dHWd/DOCuxGWF--
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