On Mon, Mar 30, 2009 at 12:34 PM, Roland McGrath <roland@xxxxxxxxxx> wrote:
>> On Mon, Mar 30, 2009 at 11:35 AM, Roland McGrath <roland@xxxxxxxxxx> wrote:
>> > All of the "resuming" ptracer requests treat the data argument the same.
>> > Those are PTRACE_CONT, PTRACE_SYSCALL, PTRACE_*STEP, PTRACE_SYSEMU*.
>> > The data argument is either 0 or a signal number.
>> > The addr argument is ignored by all these.
>>
>> Thanks for jumping in Roland.
>>
>> So, for PTRACE_SYSCALL, the sameantics are like PTRACE_CONT, that is,
>> it is interpreted as a signal to be sent to the child. Right?
>
> For all those requests, yes.
Hmmm. The existing man page includes this text:
PTRACE_SYSEMU, PTRACE_SYSEMU_SINGLESTEP (since Linux 2.6.14)
...
(addr and data are ignored; ...
which according to what you've said (and also according to my reading
of the source), is wrong. Correct?
Cheers,
Michael
--
Michael Kerrisk
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