wireguard-openbsd/lib/csu, branch master WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/lib/csu?h=master 2020-10-20T15:26:59Z Use a trap instruction that unconditionally terminates the process. 2020-10-20T15:26:59Z visa visa@openbsd.org 2020-10-20T15:26:59Z urn:sha1:80466dde51009dbd49580caccfb3a8784eaac483 OK deraadt@ replace ad-hoc illegal instruction with the architecturally defined one 2020-10-19T17:57:40Z naddy naddy@openbsd.org 2020-10-19T17:57:40Z urn:sha1:5bbf88322ed6a7a68da69a643f5f3b793160f0cd ("permanently undefined") ok deraadt@ kettenis@ crt0 MD _dl_exit() performs syscall to SYS_exit directly, but then 2020-10-15T16:30:21Z deraadt deraadt@openbsd.org 2020-10-15T16:30:21Z urn:sha1:2bc3a8c076b486ad5cb1adf52ac1373fba054b0a some of these functions were returning. That makes the +1word address a fairly strong and easily located gadget. Put a hard-trap instruction after the syscall. This remains a gadget for 'terminal system' calls (such as execve), but hey that's why we have pledge w/o "exec" throughout the tree. Quite surprisingly, hppa's delay-slot load of SYS_exit makes it the safest of the bunch, not that this helps anyone. ok kettenis use symbolic SYS_exit rather than 1, and skip using 2020-10-14T22:11:52Z deraadt deraadt@openbsd.org 2020-10-14T22:11:52Z urn:sha1:d3209adab54fdc9e17816163c528bb17e59f3188 the 0x400 %g2 syscall method ok kettenis use symbolic SYS_exit instead of the value 1 2020-10-14T22:11:18Z deraadt deraadt@openbsd.org 2020-10-14T22:11:18Z urn:sha1:9c558c1181d4532fa3a04595bff127adc23ef057 ok kettenis Prevent the use of jump tables on powerpc64 as well. 2020-06-27T18:35:07Z kettenis kettenis@openbsd.org 2020-06-27T18:35:07Z urn:sha1:7bccb2005a2d72cfe42eb6761bbc6dd66c3c597c ok patrick@, drahn@ Fix powerpc64 pie binraries, in register renumbering one line was missed. 2020-06-26T19:57:02Z drahn drahn@openbsd.org 2020-06-26T19:57:02Z urn:sha1:6becf2828f4e3f78acd7af3d7beaf754b0bfc7e6 disable altivec and vsx as it causes issues in qemu testing. 2020-06-25T04:11:59Z drahn drahn@openbsd.org 2020-06-25T04:11:59Z urn:sha1:8bf96a7fa8dfda15542fe224b1869f5753d87581 This probably should be backed out after fully debugged, vector instructions caused problems with debug configuration. PowerPC64 startup code. 2020-06-25T04:09:39Z drahn drahn@openbsd.org 2020-06-25T04:09:39Z urn:sha1:530257c27184fee40d2d337ab4c46f4fa7b4232a Determine location of toc based on PC relative location and load into %r2 Disable builtins on ppc in order to prevent the compiler from optimizing in 2020-05-19T11:23:54Z mortimer mortimer@openbsd.org 2020-05-19T11:23:54Z urn:sha1:2d072eeb6cb6a20792ad523e370e0d204055bba7 calls to libc in the process boot code that might not work before things like the GOT are set up. Suggested by deraadt@ ok visa@