Date: Fri, 26 Feb 2021 04:25:23 -0800 From: David Wolfskill <david@catwhisker.org> To: current@freebsd.org Subject: Re: HEADS-UP: PIE enabled by default on main Message-ID: <YDjoswwUizEmpIrL@albert.catwhisker.org> In-Reply-To: <CAPyFy2BaXoO0tVd2auHKFKZ17suTDAVzpvGdESaeu4GUFvdJ7Q@mail.gmail.com> References: <CAPyFy2CyxG=Bj8T22ixW3=E3dv6mPoZRwJ_VSN%2BTwky95rUYYw@mail.gmail.com> <20210225231028.GB69550@eureka.lemis.com> <YDg/JkvXdCXNa1Hk@phouka1.phouka.net> <CAPyFy2BaXoO0tVd2auHKFKZ17suTDAVzpvGdESaeu4GUFvdJ7Q@mail.gmail.com>
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[-- Attachment #1 --] On Thu, Feb 25, 2021 at 09:22:43PM -0500, Ed Maste wrote: > On Thu, 25 Feb 2021 at 19:23, John Kennedy <warlock@phouka.net> wrote: > > > > Not sure if Ed Maste just wants to make sure that all the executables > > are rebuilt as PIE (vs hit-and-miss) or there is a sneaker corner-case that > > he knows about. > > The issue is that without a clean build you may have some .o files > left around that are built without PIE enabled (i.e., compiled without > -fPIE), and attempting to link them into a PIE executable will fail > with an error like: > > ld: error: can't create dynamic relocation R_X86_64_32 against local > symbol in readonly segment; recompile object files with -fPIC or pass > '-Wl,-z,notext' to allow text relocations in the output > .... FWIW, my source update from: FreeBSD freebeast.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #1194 main-n245061-c861373bdff9: Thu Feb 25 04:09:17 PST 2021 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/GENERIC amd64 1400005 1400005 to: FreeBSD freebeast.catwhisker.org 14.0-CURRENT FreeBSD 14.0-CURRENT #1195 main-n245107-172f2fc11cc5: Fri Feb 26 04:01:22 PST 2021 root@freebeast.catwhisker.org:/common/S4/obj/usr/src/amd64.amd64/sys/GENERIC amd64 1400005 1400005 this morning was quite uneventful. I did nothing special -- just the normal META_MODE build I always do. Rebooted; started X11 (built under stable/12, as with all of the ports save x11/nvidia-driver)... things Just Worked. :-) (Above was from one machine; I actually updated 3 machines in parallel.) Peace, david -- David H. Wolfskill david@catwhisker.org It is supremely disingenuous to claim a lack of jurisdiction, then proceed to participate in a decision on the same matter. See https://www.catwhisker.org/~david/publickey.gpg for my public key. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQGTBAEBCgB9FiEE4owz2QxMJyaxAefyQLJg+bY2PckFAmA46LNfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEUy OEMzM0Q5MEM0QzI3MjZCMTAxRTdGMjQwQjI2MEY5QjYzNjNEQzkACgkQQLJg+bY2 Pcl7CQf9Ethjg8vu5LLwFj8xekr7WkiDbMvznY37iiodNTwqOcAc1taBCL71xayI 0f3oH/BTwN+DH8fcFgVQKcjkE9R9qZn+epWzn7dwRWXF7bRaLRwtEMF8qkRQdoaC j7fVFGgWpU+yue6GxdBFBocDBvByzTcHUS2AbDc61f7V3Um8Ssy6THz1kfnA++Pe r9AJ2sBJym+l9gKeaEBUdutmdG9B4l4IzybWGB9nLdSNi2bj5rx7wz6wRr7muEfK ENFx55Y40dcPkhvyPdFjUUqEvj0YOssEDYoTnxHpwPUco/MzhSHVgZ7RfJ035uJD d9WcTWefYkDQ48lHun2hEGpKNf4mag== =jsnB -----END PGP SIGNATURE-----help
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