native jdk-15.2 on FreeBSD/amd64?

[Alexey Zelkin]

On Fri, Apr 22, 2005 at 08:44:06PM +0800, Clarence Chu wrote:
> 
> 
> 
> >There're some reported problems with EMT64 support which fixed
> >in Sun closed distribution, but not made available yet to open source
> >world.

As for minimal requirement to build/run -- yes.
 
> could the em64t problem be fixed as follows?
> 
> ---- jdk15.patches.orig  Thu Jan 20 04:47:28 2005
> +++ jdk15.patches       Fri Apr 22 18:00:54 2005
> @@ -13916,7 +13916,7 @@
> diff -N hotspot/src/os_cpu/bsd_amd64/vm/prefetch_bsd_amd64.inline.hpp
> --- hotspot/src/os_cpu/bsd_amd64/vm/prefetch_bsd_amd64.inline.hpp      1 
> Jan 170 00:00:00 -0000
> +++ hotspot/src/os_cpu/bsd_amd64/vm/prefetch_bsd_amd64.inline.hpp      23 
> Dec
> 004 19:35:20 -0000      1.2
> -@@ -0,0 +1,21 @@
> +@@ -0,0 +1,24 @@
> +/*
> + * $Id: prefetch_bsd_amd64.inline.hpp,v 1.2 2004/12/23 19:35:20 phantom 
> Exp $
> + */
> @@ -13935,8 +13935,11 @@
> +  // Force prefetchw.  The gcc builtin produces prefetcht0 or prefetchw
> +  // depending on command line switches we don't control here.
> +  // Use of this method should be gated by VM_Version::has_prefetchw.
> -+  __asm__ ("prefetchw (%0,%1,1)" : : "r" (loc), "r" (interval));
> ++  //__asm__ ("prefetchw (%0,%1,1)" : : "r" (loc), "r" (interval));
> +  //  __builtin_prefetch((char*) loc + interval, 1); // 
> prefetcht0/prefetchw
> %rsi,%rdi,1)
> ++  // prefetcht0/prefetchw (%rsi,%rdi,1)
> ++  // Do not use the 3dnow prefetchw instruction.  It isn't supported on 
> em64t
> ++  __asm__ ("prefetcht0 (%0,%1,1)" : : "r" (loc), "r" (interval));
> +}
> Index: hotspot/src/os_cpu/bsd_amd64/vm/runtime_bsd_amd64.cpp
> ===================================================================
> 
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-- 
/* Alexey Zelkin             && Independent Contractor      */
/* phantom(at)FreeBSD.org    && http://www.FreeBSD.org/java */
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