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Re: [PATCH] not trigger pagination with dprintf
- From: Hui Zhu <teawater at gmail dot com>
- To: Tom Tromey <tromey at redhat dot com>
- Cc: gdb-patches ml <gdb-patches at sourceware dot org>
- Date: Tue, 30 Apr 2013 08:57:42 +0800
- Subject: Re: [PATCH] not trigger pagination with dprintf
- References: <CANFwon2V2vVADH89czoQjS+F=Uxsc5AgMAsQ3=d0nohc2EfBpA at mail dot gmail dot com> <87zjwuv0qn dot fsf at fleche dot redhat dot com> <CANFwon1kWpR9mhGVbzf0qB4GqO89yN+Uj9jGUHpp2-kWWmFC4g at mail dot gmail dot com> <87li87ll0r dot fsf at fleche dot redhat dot com> <CANFwon2jNppHObCEac=aSU6Uq6KLaoC5PGS8Vi3LawA+xzOJ=A at mail dot gmail dot com> <87fvyd827o dot fsf at fleche dot redhat dot com>
On Sat, Apr 27, 2013 at 4:30 AM, Tom Tromey <tromey@redhat.com> wrote:
> Hui> Because as the Marc said in bugzilla, when pagination is triggered,
> Hui> inferior execution will be interrupted until the user answers the
> Hui> pagination prompt. And dptintf breakpoint call printf in its
> Hui> commands. So I want to make dprintf can handle it.
>
> If pagination from a breakpoint's commands really breaks gdb, then it
> should be disabled universally while in "commands", not just for
> dprintf.
>
> If it doesn't break gdb, well, then it seems like it is what the user
> asked for.
Hi Tom,
I post a new patch that temporarily set pagination_enabled to 0 in the
begin of commands execution function bpstat_do_actions to close
pagination.
Then all the commands of breakpoint will not trigger pagination.
If you think this patch is OK, I will update patch for bug 15075
http://sourceware.org/ml/gdb-patches/2013-04/msg00711.html temporarily
set pagination_enabled to 0 too.
Thanks,
Hui
2013-04-30 Hui Zhu <hui@codesourcery.com>
PR gdb/15182
* breakpoint.c (bpstat_do_actions): Temporarily set
pagination_enabled to 0.
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -4374,7 +4374,11 @@ void
bpstat_do_actions (void)
{
struct cleanup *cleanup_if_error = make_bpstat_clear_actions_cleanup ();
+ struct cleanup *back_to;
+ extern int pagination_enabled;
+ back_to = make_cleanup_restore_integer (&pagination_enabled);
+ pagination_enabled = 0;
/* Do any commands attached to breakpoint we are stopped at. */
while (!ptid_equal (inferior_ptid, null_ptid)
&& target_has_execution
@@ -4387,6 +4391,7 @@ bpstat_do_actions (void)
if (!bpstat_do_actions_1 (&inferior_thread ()->control.stop_bpstat))
break;
+ do_cleanups (back_to);
discard_cleanups (cleanup_if_error);
}