wireguard-openbsd/lib/csu/mips64, branch masterWireGuard implementation for the OpenBSD kernelhttps://git.zx2c4.com/wireguard-openbsd/atom/lib/csu/mips64?h=master2020-10-20T15:26:59ZUse a trap instruction that unconditionally terminates the process.2020-10-20T15:26:59Zvisavisa@openbsd.org2020-10-20T15:26:59Zurn:sha1:80466dde51009dbd49580caccfb3a8784eaac483
OK deraadt@
crt0 MD _dl_exit() performs syscall to SYS_exit directly, but then2020-10-15T16:30:21Zderaadtderaadt@openbsd.org2020-10-15T16:30:21Zurn: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 instead of the value 12020-10-14T22:11:18Zderaadtderaadt@openbsd.org2020-10-14T22:11:18Zurn:sha1:9c558c1181d4532fa3a04595bff127adc23ef057
ok kettenis
Work around a limitation of clang integrated assembler on mips64.2019-04-19T09:19:22Zvisavisa@openbsd.org2019-04-19T09:19:22Zurn:sha1:ba36fba2f7dd7c5c34bf6a8358bcb85b5d314e36
The assembler does not handle undeclared local symbols properly
and generates R_MIPS_CALL16 relocations where it should generate
local GOT references. For now, get along with the problem by
declaring local symbols where necessary.
OK kettenis@ guenther@
Separate symbol name and type with a comma for consistency and2019-03-23T15:29:55Zvisavisa@openbsd.org2019-03-23T15:29:55Zurn:sha1:9d16eafffdf8c1a15260e2b70d3e82dd3fb6233d
to make clang happier.
No binary change with gas.
_dl_printf is no longer referenced by RELOC_{JMPREL,DYN,GOT}; delete the stub2017-08-11T20:13:30Zguentherguenther@openbsd.org2017-08-11T20:13:30Zurn:sha1:344baaa7369214af57d570c2005bb07927710f77
ok kettenis@
Teach mips64 to pass &_DYNAMIC to _dl_boot_bind().2016-08-07T02:44:00Zguentherguenther@openbsd.org2016-08-07T02:44:00Zurn:sha1:55a0c4560399e8996c8f78ea46a1e2c8cb5e23c0
mips64be testing by deraadt@
Rearrange C runtime bits: now that ld.so exports environ and __progname,2016-03-20T02:32:39Zguentherguenther@openbsd.org2016-03-20T02:32:39Zurn:sha1:5af055cd66b5450a4935ae30e5716331ca3b13d5
move their definitions and initialization in static links to libc.a
Make crt0 always invoke a new func _csu_finish() in libc to process the auxv
and to either register the ld.so cleanup function (in dynamic links) or
initialize environ and __progname and do MC_DISABLE_KBIND (in static links).
In libc, get pagesize from auxv; cache that between getpagesize() and
sysconf(_SC_PAGESIZE)
ok mpi@ "good time" deraadt@
crt0.c is already setting environ, so don't set it in MD_START_SETUP2016-03-13T18:35:02Zguentherguenther@openbsd.org2016-03-13T18:35:02Zurn:sha1:d5d4315e3de48ca679294ba47062c7faaac64e04
ok kettenis@ mpi@
In static binaries, invoke kbind() once to disable it.2015-09-01T05:40:06Zguentherguenther@openbsd.org2015-09-01T05:40:06Zurn:sha1:0a8a9c346022d9ea9d2d120f75edf8549c4915cf
With much assistance from miod@
ok deraadt@@