From: Ralf Baechle <ralf@oss.sgi.com>
To: Atsushi Nemoto <nemoto@toshiba-tops.co.jp>
Cc: linux-mips@fnet.fr, linux-mips@oss.sgi.com
Subject: Re: scall_o32.S in 2.4.6 (or later)
Date: Mon, 27 Aug 2001 08:30:17 +0200 [thread overview]
Message-ID: <20010827083017.A2689@dea.linux-mips.net> (raw)
In-Reply-To: <20010827.101340.74756473.nemoto@toshiba-tops.co.jp>; from nemoto@toshiba-tops.co.jp on Mon, Aug 27, 2001 at 10:13:40AM +0900
On Mon, Aug 27, 2001 at 10:13:40AM +0900, Atsushi Nemoto wrote:
> After merging with 2.4.6, it seems that syscall destroy static
> registers. Isnt't this needed?
Only if you insist on keeping register contents ;-)
The SAVE_STATIC was actually there, just at the wrong place, so the correct
patch is below.
Index: arch/mips/kernel/scall_o32.S
===================================================================
RCS file: /home/pub/cvs/linux/arch/mips/kernel/scall_o32.S,v
retrieving revision 1.16
diff -u -r1.16 scall_o32.S
--- arch/mips/kernel/scall_o32.S 2001/08/22 03:23:59 1.16
+++ arch/mips/kernel/scall_o32.S 2001/08/27 06:31:46
@@ -86,13 +86,13 @@
ori t0, t0, 1
mtc0 t0, CP0_STATUS
+ SAVE_STATIC
move a0, zero
move a1, sp
jal do_signal
b restore_all
o32_reschedule:
- SAVE_STATIC
jal schedule
b o32_ret_from_sys_call
Ralf
prev parent reply other threads:[~2001-08-27 6:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-27 1:13 scall_o32.S in 2.4.6 (or later) Atsushi Nemoto
2001-08-27 6:30 ` Ralf Baechle [this message]
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