So far there is no comment which would require any modification in
this patch set. However, a rebase would be required, because we have a
fixup "arm64: Improve kprobes test for atomic sequence" in the next
now. Also, since we have "arm64: kprobe: Always clear pstate.D in
breakpoint exception handler" in next, so I can remove __kprobes tag
from uprobe_breakpoint_handler() and uprobe_single_step_handler().
Do you think that these patches are good to be taken for 4.9? If yes,
then I will send a quick V2 with above modifications.
On Wed, Aug 24, 2016 at 12:56 PM, Pratyush Anand <pan...@redhat.com> wrote:
> Hi Will/Catalin,
> Do you have any specific comment for this patch set?
>  https://lkml.org/lkml/2016/8/22/69
> On 02/08/2016:11:00:04 AM, Pratyush Anand wrote:
>> ARM64 kprobe support is lying in torvalds/linux.git:master now. Therefore
>> sending my uprobe patches which were dependent on decode-insn code of kprobe
>> Unit tests for following have been done so far and they have been found
>> 1. Step-able instructions, like sub, ldr, add etc.
>> 2. Simulation-able like ret, cbnz, cbz etc.
>> 3. uretprobe
>> 4. Reject-able instructions like sev, wfe etc.
>> 5. trapped and abort xol path
>> 6. probe at unaligned user address.
>> 7. longjump test cases
>> Currently it does not support aarch32 instruction probing.
>> RFC patches were sent long back, and all review comments for RFCs have been
>> incorporated. RFCs were here: https://lwn.net/Articles/648514/
>> Pratyush Anand (5):
>> arm64: kprobe: protect/rename few definitions to be reused by uprobe
>> arm64: kgdb_step_brk_fn: ignore other's exception
>> arm64: Handle TRAP_HWBRKPT for user mode as well
>> arm64: Handle TRAP_BRKPT for user mode as well
>> arm64: Add uprobe support
>> arch/arm64/Kconfig | 3 +
>> arch/arm64/include/asm/debug-monitors.h | 3 +
>> arch/arm64/include/asm/probes.h | 23 ++--
>> arch/arm64/include/asm/ptrace.h | 8 ++
>> arch/arm64/include/asm/thread_info.h | 5 +-
>> arch/arm64/include/asm/uprobes.h | 37 ++++++
>> arch/arm64/kernel/debug-monitors.c | 40 +++---
>> arch/arm64/kernel/entry.S | 6 +-
>> arch/arm64/kernel/kgdb.c | 3 +
>> arch/arm64/kernel/probes/Makefile | 2 +
>> arch/arm64/kernel/probes/decode-insn.c | 31 ++---
>> arch/arm64/kernel/probes/decode-insn.h | 8 +-
>> arch/arm64/kernel/probes/kprobes.c | 36 ++---
>> arch/arm64/kernel/probes/uprobes.c | 227
>> arch/arm64/kernel/signal.c | 4 +-
>> arch/arm64/mm/flush.c | 6 +
>> 16 files changed, 378 insertions(+), 64 deletions(-)
>> create mode 100644 arch/arm64/include/asm/uprobes.h
>> create mode 100644 arch/arm64/kernel/probes/uprobes.c