* Re: Kenerl Entry/Exit optimization patch for your bk tree
@ 2003-07-30 22:13 Bjorn Helgaas
0 siblings, 0 replies; only message in thread
From: Bjorn Helgaas @ 2003-07-30 22:13 UTC (permalink / raw)
To: linux-ia64
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); \
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2003-07-30 22:13 Kenerl Entry/Exit optimization patch for your bk tree Bjorn Helgaas
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