Re: [LTP] [PATCH 1/1] README: Mention -f param for strace

[Avinesh Kumar <akumar@suse.de>]

On Tuesday, January 30, 2024 2:14:29 PM CET Petr Vorel wrote:
> Hi Avinesh,
> 
> > Hi Petr,
> > 
> > > -Debugging with gdb
> > > -==================
> > > +Debugging with gdb and strace
> > > +=============================
> > > 
> > >  The new test library runs the actual test, i.e. the `test()` function
> > >  in a
> > >  forked process. To get stack trace of a crashing test in gdb it's
> > >  needed to
> > > 
> > > [`set follow-fork-mode
> > > child`](https://ftp.gnu.org/old-gnu/Manuals/gdb/html_node/gdb_25.html).
> > > +To
> > > trace test with strace use `-f`.
> > 
> > For a second I thought ltp tests has `-f` option.
> > So maybe if we can make it absolutely clear, or maybe it is just me. :D
> 
> thanks for having a look!
> 
> There is currently no -f parameter, but sure, it could be in the future.
> ./fanotify01 -h # shows no -f parameter
> 
> ./fanotify01 -f
> ...
> tst_test.c:688: TBROK: Invalid option
> 
> But I meant '-f' as strace parameter, e.g.:
> 
> strace -f ./fanotify01
> 
> should I wrote this?
> 
> 	To trace test with strace use call strace with `-f` parameter.
yes, or maybe-
To trace the test with strace, use strace with `-f` option to enable tracing 
of forked processes also.

Thanks,
Avinesh
> 
> Kind regards,
> Petr





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