From: Bjorn Helgaas <bjorn.helgaas@hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: Kenerl Entry/Exit optimization patch for your bk tree
Date: Wed, 30 Jul 2003 22:13:34 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105960328604158@msgid-missing> (raw)
On Tuesday 10 June 2003 3:26 pm, Seth, Rohit wrote:
> Please find attached the Kernel entry/exit patch against your latest
> 2.4.20-bk tree. This is derived from (now settled) 2.5 kernel patch
> that David has in his tree. One major change from 2.5 is that
> ia64_execve still has the same old hack to support IA-32 apps (that is
> currently broken on 2.5).
>
> This patch also has the support for 16-bytes instructions that are
> mentioned in SDM2.1
I applied this patch to the 2.4 tree, with the following edit:
diff -Nru a/arch/ia64/kernel/entry.h b/arch/ia64/kernel/entry.h
--- a/arch/ia64/kernel/entry.h Wed Jul 30 16:51:44 2003
+++ b/arch/ia64/kernel/entry.h Wed Jul 30 16:51:44 2003
@@ -14,7 +14,7 @@
#define SW(f) (IA64_SWITCH_STACK_##f##_OFFSET)
#define PT_REGS_SAVES(off) \
- .unwabi @svr4, 'i'; \
+ .unwabi 3, 'i'; \
.fframe IA64_PT_REGS_SIZE+16+(off); \
.spillsp rp, PT(CR_IIP)+16+(off); \
.spillsp ar.pfs, PT(CR_IFS)+16+(off); \
reply other threads:[~2003-07-30 22:13 UTC|newest]
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