arm64: Support hardware breakpoints

As with watchpoints allow the kernel debugger to set hardware
breakpoints on arm64.

These have been tested to work in both the ddb and gdb backends.

Reviewed by

arm64: Support hardware breakpoints

As with watchpoints allow the kernel debugger to set hardware
breakpoints on arm64.

These have been tested to work in both the ddb and gdb backends.

Reviewed by: jhb (earlier version)
Sponsored by: Arm Ltd
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D44355

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Make some arm64 debug monitor functions static

These are only used within debug_monitor.c so can become static.

Sponsored by: Arm Ltd

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

S

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

Sponsored by: The FreeBSD Foundation

show more ...

Move the struct debug_monitor_state out of _KERNEL.

Some userland libraries incude machine/pcb.h and this needs the full
definition of struct debug_monitor_state. To allow this to work move
stuct de

Move the struct debug_monitor_state out of _KERNEL.

Some userland libraries incude machine/pcb.h and this needs the full
definition of struct debug_monitor_state. To allow this to work move
stuct debug_monitor_state out of the _KERNEL guard.

Sponsored by: DARPA, AFRL

show more ...

Update the debug monitor handling to work after userspace has started

The debug monitor register state is now stored in a struct and updated
when required. Currently there is only a kernel state, ho

Update the debug monitor handling to work after userspace has started

The debug monitor register state is now stored in a struct and updated
when required. Currently there is only a kernel state, however a
per-process state will be added in a future change.

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D22128

show more ...

arm64: Support hardware breakpoints

As with watchpoints allow the kernel debugger to set hardware
breakpoints on arm64.

These have been tested to work in both the ddb and gdb backends.

Reviewed by

arm64: Support hardware breakpoints

As with watchpoints allow the kernel debugger to set hardware
breakpoints on arm64.

These have been tested to work in both the ddb and gdb backends.

Reviewed by: jhb (earlier version)
Sponsored by: Arm Ltd
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D44355

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Make some arm64 debug monitor functions static

These are only used within debug_monitor.c so can become static.

Sponsored by: Arm Ltd

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

S

Remove "All Rights Reserved" from FreeBSD Foundation sys/ copyrights

These ones were unambiguous cases where the Foundation was the only
listed copyright holder (in the associated license block).

Sponsored by: The FreeBSD Foundation

show more ...

Move the struct debug_monitor_state out of _KERNEL.

Some userland libraries incude machine/pcb.h and this needs the full
definition of struct debug_monitor_state. To allow this to work move
stuct de

Move the struct debug_monitor_state out of _KERNEL.

Some userland libraries incude machine/pcb.h and this needs the full
definition of struct debug_monitor_state. To allow this to work move
stuct debug_monitor_state out of the _KERNEL guard.

Sponsored by: DARPA, AFRL

show more ...

Update the debug monitor handling to work after userspace has started

The debug monitor register state is now stored in a struct and updated
when required. Currently there is only a kernel state, ho

Update the debug monitor handling to work after userspace has started

The debug monitor register state is now stored in a struct and updated
when required. Currently there is only a kernel state, however a
per-process state will be added in a future change.

Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D22128

show more ...

Merge ^/head r305687 through r305890.

Fix the arm64 kernel build when DDB is disabled, debug_monitor.c depends on
DDB, and is unused when it's disabled.

Obtained from: ABT Systems Ltd
MFC after: 3 days
Sponsored by: The FreeBSD Foundati

Fix the arm64 kernel build when DDB is disabled, debug_monitor.c depends on
DDB, and is unused when it's disabled.

Obtained from: ABT Systems Ltd
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

show more ...

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from head

MFH: r280643-r281852

Sponsored by: The FreeBSD Foundation

Bring in the start of the arm64 kernel.

This is only the minimum set of files needed to boot in qemu. As such it is
missing a few things.

The bus_dma code is currently only stub functions with a fu

Bring in the start of the arm64 kernel.

This is only the minimum set of files needed to boot in qemu. As such it is
missing a few things.

The bus_dma code is currently only stub functions with a full implementation
from the development tree to follow.

The gic driver has been copied as the interrupt framework is different. It
is expected the two drivers will be merged by the arm intrng project,
however this will need to be imported into the tree and support for arm64
would need to be added.

This includes code developed by myself, SemiHalf, Ed Maste, and Robin
Randhawa from ARM. This has been funded by the FreeBSD Foundation, with
early development by myself in my spare time with assistance from Robin.

Differential Revision: https://reviews.freebsd.org/D2199
Reviewed by: emaste, imp
Relnotes: yes
Sponsored by: The FreeBSD Foundation

show more ...

Merge ^/head r305687 through r305890.

Fix the arm64 kernel build when DDB is disabled, debug_monitor.c depends on
DDB, and is unused when it's disabled.

Obtained from: ABT Systems Ltd
MFC after: 3 days
Sponsored by: The FreeBSD Foundati

Fix the arm64 kernel build when DDB is disabled, debug_monitor.c depends on
DDB, and is unused when it's disabled.

Obtained from: ABT Systems Ltd
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

show more ...

Catch up with HEAD (r280229-r284686).

Merge sync of head

Merge from head

MFH: r280643-r281852

Sponsored by: The FreeBSD Foundation