From: Philippe De Muyter <phdm@macq.eu>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Greg Ungerer <gerg@uclinux.org>, linux-m68k@vger.kernel.org
Subject: Re: [PATCH] m68k: use conventional function parameters for do_sigreturn
Date: Tue, 9 Feb 2016 16:26:03 +0100 [thread overview]
Message-ID: <20160209152603.GA31805@frolo.macqel> (raw)
In-Reply-To: <mvmh9hit0gx.fsf@hawking.suse.de>
On Tue, Feb 09, 2016 at 03:36:14PM +0100, Andreas Schwab wrote:
> Philippe De Muyter <phdm@macq.eu> writes:
>
> > Given what gcc does now, how can scanf still work then ?
>
> In which way is that related to scanf?
The scanf family uses/used varargs to determine the addresses of the
returned values to fill, like do_sigreturn.
But I see the difference now : with scanf only the addresses are on the
stack, while with do_sigreturn the values themselves are on the stack.
Philippe
--
Philippe De Muyter +32 2 6101532 Macq SA rue de l'Aeronef 2 B-1140 Bruxelles
prev parent reply other threads:[~2016-02-09 15:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-19 5:56 [PATCH] m68k: use conventional function parameters for do_sigreturn Greg Ungerer
2016-02-01 4:33 ` Greg Ungerer
2016-02-01 18:39 ` Andreas Schwab
2016-02-01 23:59 ` Greg Ungerer
2016-02-02 19:25 ` Andreas Schwab
2016-02-03 4:14 ` Greg Ungerer
2016-02-08 23:31 ` Andreas Schwab
2016-02-09 0:21 ` Greg Ungerer
2016-02-09 9:48 ` Andreas Schwab
2016-02-09 13:05 ` Greg Ungerer
2016-02-09 13:17 ` Andreas Schwab
2016-02-09 14:01 ` Philippe De Muyter
2016-02-09 14:36 ` Andreas Schwab
2016-02-09 15:26 ` Philippe De Muyter [this message]
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