Re: [PATCH bpf-next v2 0/4] kprobes: rethook: x86: Replace kretprobe trampoline with rethook

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On Fri, 25 Mar 2022 17:51:19 +0100
Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:

> On Fri, Mar 25, 2022 at 03:43:15PM +0100, Peter Zijlstra wrote:
> > On Fri, Mar 25, 2022 at 11:22:53PM +0900, Masami Hiramatsu wrote:
> > 
> > > Masami Hiramatsu (3):
> > >       kprobes: Use rethook for kretprobe if possible
> > >       rethook: kprobes: x86: Replace kretprobe with rethook on x86
> > >       x86,kprobes: Fix optprobe trampoline to generate complete pt_regs
> > > 
> > > Peter Zijlstra (1):
> > >       Subject: x86,rethook: Fix arch_rethook_trampoline() to generate a complete pt_regs
> > 
> > You fat-fingered the subject there ^
> > 
> > Other than that:
> > 
> > Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> > 
> > Hopefully the ftrace return trampoline can also be switched over..
> 
> Urgh, allnoconfig doesn't build because..
> 
> diff --git a/kernel/Makefile b/kernel/Makefile
> index 56f4ee97f328..471d71935e90 100644
> --- a/kernel/Makefile
> +++ b/kernel/Makefile
> @@ -108,6 +108,7 @@ obj-$(CONFIG_TRACING) += trace/
>  obj-$(CONFIG_TRACE_CLOCK) += trace/
>  obj-$(CONFIG_RING_BUFFER) += trace/
>  obj-$(CONFIG_TRACEPOINTS) += trace/
> +obj-$(CONFIG_RETHOOK) += trace/
>  obj-$(CONFIG_IRQ_WORK) += irq_work.o
>  obj-$(CONFIG_CPU_PM) += cpu_pm.o
>  obj-$(CONFIG_BPF) += bpf/

Oops, thanks for pointing out!


-- 
Masami Hiramatsu <mhiramat@xxxxxxxxxx>



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