funny signal messages when tracing any app

[Dmitry V. Levin]

On Mon, May 13, 2013 at 05:04:36PM +0200, Denys Vlasenko wrote:
> On 05/04/2013 11:21 PM, Dmitry V. Levin wrote:
> > On Wed, May 01, 2013 at 11:04:13PM -0400, Mike Frysinger wrote:
> >> i imagine this has to do with the probing of new ptrace features, but it still 
> >> seems wrong for the first two lines to be signal stuff when tracing any program:
> >> $ ./strace -eexecve /bin/true 
> >> --- stopped by SIGSTOP ---
> >> --- SIGCONT {si_signo=SIGCONT, si_code=SI_USER, si_pid=10908, si_uid=8282} ---
> > 
> > These two lines are annoying, aren't they?
> > It was discussed in February, with no visible result so far.
> 
> I will try to suppress them.

Another issue with USE_SEIZE is that -D option doesn't work:

$ env -i ./strace -D /bin/true
./strace: attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
Alarm clock


-- 
ldv
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