From: Andreas Schwab <schwab@linux-m68k.org>
To: Greg Ungerer <gerg@uclinux.org>
Cc: linux-m68k@vger.kernel.org
Subject: Re: [PATCH] m68k: use conventional function parameters for do_sigreturn
Date: Tue, 09 Feb 2016 14:17:24 +0100 [thread overview]
Message-ID: <mvm37t2uior.fsf@hawking.suse.de> (raw)
In-Reply-To: <56B9E435.2000203@uclinux.org> (Greg Ungerer's message of "Tue, 9 Feb 2016 23:05:57 +1000")
Greg Ungerer <gerg@uclinux.org> writes:
> Given the original code is:
>
> asmlinkage int do_sigreturn(unsigned long __unused)
> {
> struct switch_stack *sw = (struct switch_stack *) &__unused;
> struct pt_regs *regs = (struct pt_regs *) (sw + 1);
>
> So gcc is determining that what sw and regs points to are
> part of do_sigreturn() parameters here?
It's basically what varags used to do.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2016-02-09 13:17 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 [this message]
2016-02-09 14:01 ` Philippe De Muyter
2016-02-09 14:36 ` Andreas Schwab
2016-02-09 15:26 ` Philippe De Muyter
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