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RE: RFA [PATCH v3] Implement 'catch syscall' for gdbserver
- From: Philippe Waroquiers <philippe dot waroquiers at skynet dot be>
- To: "Agovic, Sanimir" <sanimir dot agovic at intel dot com>
- Cc: "gdb-patches at sourceware dot org" <gdb-patches at sourceware dot org>
- Date: Mon, 23 Sep 2013 21:32:34 +0200
- Subject: RE: RFA [PATCH v3] Implement 'catch syscall' for gdbserver
- Authentication-results: sourceware.org; auth=none
- References: <1379796907 dot 5980 dot 20 dot camel at soleil> <0377C58828D86C4588AEEC42FC3B85A717680EC1 at IRSMSX105 dot ger dot corp dot intel dot com>
On Mon, 2013-09-23 at 11:50 +0000, Agovic, Sanimir wrote:
> Hello Philippe,
>
> > + if (the_low_target.get_syscall_trapinfo == NULL)
> > + {
> > + *sysno = 0;
> > + *sysret = 0;
> > + return;
> > + }
> >
> Is it sufficient to assign sysno/sysret to 0 to indicate missing 'catch syscall'
> functionality? Both values seem legal to me.
The idea is that will be used in case the user forces the use of the
QCatchSyscalls packet. So, I think it is better to return "valid" (but
not used) values : I do not think there is a syscall nr 0.
Philippe