On Fri, Jan 07, 2011 at 12:02:55PM -0500, Ben Kaduk wrote: > On Fri, Jan 7, 2011 at 9:22 AM, Konstantin Belousov <k...@freebsd.org> wrote: > > Author: kib > > Date: Fri Jan 7 14:22:34 2011 > > New Revision: 217097 > > URL: http://svn.freebsd.org/changeset/base/217097 > > > > Log: > > Add AT_STACKPROT elf aux vector. Will be used to inform rtld about the > > initial stack protection set by the kernel image activator. > > > ============================================================================== > > --- head/sys/amd64/include/elf.h Fri Jan 7 14:17:29 2011 > > (r217096) > > +++ head/sys/amd64/include/elf.h Fri Jan 7 14:22:34 2011 > > (r217097) > > @@ -94,8 +94,9 @@ __ElfType(Auxinfo); > > #define AT_NCPUS 19 /* Number of CPUs. */ > > #define AT_PAGESIZES 20 /* Pagesizes. */ > > #define AT_PAGESIZESLEN 21 /* Number of pagesizes. */ > > +#define AT_STACKPROT 23 /* Initial stack protection. */ > > > > -#define AT_COUNT 22 /* Count of defined aux entry > > types. */ > > +#define AT_COUNT 24 /* Count of defined aux entry > > types. */ > > > 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.
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