Messages in this thread | | | From | Jisheng Zhang <> | Subject | Re: [PATCH v2 1/3] kprobes/x86: use instruction_pointer and instruction_pointer_set | Date | Tue, 20 Aug 2019 09:20:50 +0000 |
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On Tue, 20 Aug 2019 09:02:59 +0000 Jisheng Zhang wrote:
> > > Hi Thomas, > > On Tue, 20 Aug 2019 10:53:58 +0200 (CEST) Thomas Gleixner wrote: > > > > > > > On Tue, 20 Aug 2019, Jisheng Zhang wrote: > > > > > This is to make the x86 kprobe_ftrace_handler() more common so that > > > the code could be reused in future. > > > > While I agree with the change in general, I can't find anything which > > reuses that code. So the change log is pretty useless and I have no idea > > how this is related to the rest of the series.
Indeed, this isn't related to the rest of the series. So will update the change log and resend it alone.
> > In v1, this code is moved from x86 to common kprobes.c [1] > But I agree with Masami, consolidation could be done when arm64 kprobes > on ftrace is stable. > > In v2, actually, the arm64 version's kprobe_ftrace_handler() is the same > as x86's, the only difference is comment, e.g > > /* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */ > > while in arm64 > > /* Kprobe handler expects regs->pc = ip + 1 as breakpoint hit */ > > > W/ above, any suggestion about the suitable change log? > > Thanks >
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