From: David Miller <davem@davemloft.net>
To: mpatocka@redhat.com
Cc: helge.hafting@aitel.hist.no, sparclinux@vger.kernel.org,
linux-kernel@vger.kernel.org, gcc@gcc.gnu.org
Subject: Re: [10 PATCHES] inline functions to avoid stack overflow
Date: Tue, 01 Jul 2008 21:45:07 -0700 (PDT) [thread overview]
Message-ID: <20080701.214507.261426026.davem@davemloft.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0807020032510.19403@engineering.redhat.com>
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Wed, 2 Jul 2008 00:39:35 -0400 (EDT)
> The ABI is very vague about it. The V9 ABI just displays that 6-word space
> in a figure bug doesn't say anything about it's usage. The V8 ABI just
> says that "the function may write incoming arguments there". If it may
> write anything other, it is unknown --- probably yes, but it is not said
> in the document.
>
> The document nicely specifies who owns which registers, but doesn't say
> that about the stack space :-(
Actually, I know for a fact that you have to have those slots there.
A long time ago in the sparc64 kernel, in the trap entry code, I tried
only giving 128 bytes of stack frame as the trap entry called into C
code. And it did not work, I had to put the 6 slots there.
next prev parent reply other threads:[~2008-07-02 4:45 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-24 5:54 [10 PATCHES] inline functions to avoid stack overflow Mikulas Patocka
2008-06-24 5:55 ` [1/10 PATCH] inline __queue_work Mikulas Patocka
2008-06-24 5:56 ` [2/10 PATCH] inline inline-generic_writepages.patch Mikulas Patocka
2008-06-24 5:57 ` [3/10 PATCH] inline wake_up_bit Mikulas Patocka
2008-06-25 14:17 ` Denys Vlasenko
2008-06-25 14:36 ` Mikulas Patocka
2008-06-25 15:24 ` Denys Vlasenko
2008-06-25 16:01 ` Mikulas Patocka
2008-06-25 20:37 ` Denys Vlasenko
2008-06-26 0:28 ` David Miller
2008-06-26 3:35 ` Denys Vlasenko
2008-06-26 4:18 ` David Miller
2008-06-26 18:22 ` Pavel Machek
2008-06-25 22:23 ` David Miller
2008-06-25 22:30 ` David Miller
2008-06-24 5:57 ` [4/10 PATCH] inline __wake_up_bit Mikulas Patocka
2008-06-24 5:58 ` [5/10 PATCH] inline __wake_up Mikulas Patocka
2008-06-24 5:59 ` [6/10 PATCH] inline default_wake_function Mikulas Patocka
2008-06-24 5:59 ` [6/10 PATCH] inline autoremove_wake_function Mikulas Patocka
2008-06-24 6:01 ` [8/10 PATCH] inline filemap_fdatawrite Mikulas Patocka
2008-06-24 6:01 ` [9/10 PATCH] inline dm-kcopyd-inline-wake.patch Mikulas Patocka
2008-06-24 6:03 ` [10/10 PATCH] inline dispatch_job Mikulas Patocka
2008-06-24 6:06 ` [PATCH] limit irq nesting Mikulas Patocka
2008-06-24 7:01 ` [10 PATCHES] inline functions to avoid stack overflow Ingo Molnar
[not found] ` <486216E7.8000002@aitel.hist.no>
2008-06-25 12:53 ` Mikulas Patocka
2008-06-25 22:09 ` David Miller
2008-06-26 6:32 ` Bart Van Assche
2008-06-26 9:06 ` David Miller
2008-07-02 4:39 ` Mikulas Patocka
2008-07-02 4:45 ` David Miller [this message]
2008-07-03 21:12 ` Mikulas Patocka
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