[PATCH v7 3/3] arm64: implement KPROBES_ON_FTRACE
Masami Hiramatsu
mhiramat at kernel.org
Fri Jul 24 12:54:45 EDT 2020
On Fri, 24 Jul 2020 15:06:11 +0800
Jisheng Zhang <Jisheng.Zhang at synaptics.com> wrote:
>
> On Tue, 21 Jul 2020 22:24:55 +0900 Masami Hiramatsu wrote:
>
> >
> >
> > Hi Jisheng,
>
> Hi,
>
> >
> > Would you be still working on this series?
>
> I will rebase the implementation on the latest code, then try to address
> your comments and Mark's comments. I will send out patches in this weekend.
>
> >
> > If you are still want to put a probe on func+4, it is OK if you can
> > completely emulate the 1st instruction. (lr save on the stack and
> > change the regs->sp)
>
> Will check which is the better solution.
Thanks Jisheng!
What I'm considering is the consistency of pre_handler()@addr and
post_handler()@addr+4. Also, whether the value of regs (and stacks) is
same as the user expected.
Thank you,
--
Masami Hiramatsu <mhiramat at kernel.org>
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