Re: Problem with using PT_SYSCALL.

["rudolf%eq.cz@localhost" <rudolf%eq.cz@localhost>]

Valeriy E. Ushakov wrote:
> Artem Anisimov<aanisimov%inbox.ru@localhost>  wrote:
>
> >   The attached problem is supposed to run "/bin/ls /" and stop at
> > every system call it makes. The problem is that
> > ptrace(PT_SYSCALL,...) at the end of the main loop seems simply to
> > resume the child and make it run until it exits, but not until it
> > makes a system call.
> >
> >   Attached program works as expected under FreeBSD and Linux, so I
> > believe there is some detail that needs to be taken into account for
> > NetBSD and that I have missed.
>
> Seems to work for me under NetBSD/macppc 4-stable and
> NetBSD/landisk 5.99.24:
>
> ...
> child stopped by signal 5 (Trace/BPT trap)
> resuming the child
> altroot   etc       lib       modules   root      testroot
> child stopped by signal 5 (Trace/BPT trap)
> resuming the child
> child stopped by signal 5 (Trace/BPT trap)
> resuming the child
> ...
>
> -uwe


NetBSD/i386 5.1_RC3:

$ cc -DBSD prog.c
$ ./a.out
child stopped by signal 5 (Trace/BPT trap)
resuming the child
[list of /]
child exited with status 0
$

r.