Re: [RFC][PATCH 1/2] x86: Allow breakpoints to emulate call functions

[Masami Hiramatsu]

On Mon, 6 May 2019 17:45:11 -0400
Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:

> If we go with Peter's patch, I can make this code much more sane, and
> not have to worry about having &regs->sp be at the top of the stack. I
> could simply, just push everything in the order of pt_regs and call the
> handler.

Hi Steve, I need to catch up with the origin of this series, but it seems
also good to optprobe which is doing similar trick on pt_regs. If we can
assume that int3 pt_regs can have a gap, optprobe can also make a gap, and
it can be also used for storing destination address.

Thank you,

-- 
Masami Hiramatsu <mhiramat@xxxxxxxxxx>