Implement single-stepping. Based on an earlier diff from drahn@.
authorkettenis <kettenis@openbsd.org>
Fri, 3 Aug 2018 18:36:01 +0000 (18:36 +0000)
committerkettenis <kettenis@openbsd.org>
Fri, 3 Aug 2018 18:36:01 +0000 (18:36 +0000)
commit1ca21ddba7b166db00c776910cd5f01f54f7af28
tree7f83fda828eb66833de8793c2bbfa4e227a9548e
parent7d83751c9d0f25e88d0b1dcd5519ec7927a61e90
Implement single-stepping.  Based on an earlier diff from drahn@.
Disable userland debug communication access while there.

ok patrick@
sys/arch/arm64/arm64/cpu.c
sys/arch/arm64/arm64/exception.S
sys/arch/arm64/arm64/process_machdep.c
sys/arch/arm64/arm64/trap.c
sys/arch/arm64/include/armreg.h