On 12/27/19 10:43 AM, John Baldwin wrote: > On 12/26/19 8:07 PM, Justin Hibbits wrote: >> Author: jhibbits >> Date: Fri Dec 27 04:07:03 2019 >> New Revision: 356113 >> URL: https://svnweb.freebsd.org/changeset/base/356113 >> >> Log: >> Eliminate the last MI difference in AT_* definitions (for powerpc). >> >> Summary: >> As a transition aide, implement an alternative elfN_freebsd_fixup which >> is called for old powerpc binaries. Similarly, add a translation to rtld >> to >> convert old values to new ones (as expected by a new rtld). >> >> Translation of old<->new values is incomplete, but sufficient to allow an >> installworld of a new userspace from an old one when a new kernel is >> running. >> >> Test Plan: >> Someone needs to see how a new kernel/rtld/libc works with an old >> binary. If if works we can probalby ship this. If not we probalby need >> some more compat bits. >> >> Submitted by: brooks >> Reviewed by: jhibbits >> Differential Revision: https://reviews.freebsd.org/D20799 > > This would be much simpler as a 'sv_copyout_auxargs()' hook instead. You > could > even set it directly in the ELFv1 sysvec instead of needing a runtime check. > You could also move it purely into the powerpc code at that point and not need > to stick it in the MI file.
Oops, should I have finished reading my commit mail, thanks for fixing this. > It probably should also be under COMPAT_FREEBSD12. This should probably still be done if it isn't already, but the entire sysvec that for ELFv1 probably belongs under the #idef, not just the auxargs bit. -- John Baldwin _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
