Re: [RFC/PATCH] Implement new PTRACE_EVENT_SYSCALL_{ENTER,EXIT}

From: Sergio Durigan Junior
Date: Sat Jan 18 2014 - 21:49:41 EST


On Friday, January 10 2014, Oleg Nesterov wrote:

> So suppose that gdb does ptrace(PTRACE_SINGLESTEP) and the tracee
> executes the "syscall" insn. What it should report?
[...]
> But what should syscall-exit do? Should it still report SIGSEGV as
> it currently does, or should it report _SYSCALL_EXIT instead (if
> PTRACE_O_SYSCALL_EXIT of course), or should it report both?

Both only if _SYSCALL_EXIT is set. Otherwise, stick to the current
behavior, I guess. Isn't it what my current patch does, by the way? I
didn't test this scenario so I'm just guessing here...

--
Sergio
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