Subject: Re: pkg/30106
To: None <,,>
From: Shin'ichiro TAYA <>
List: pkgsrc-bugs
Date: 05/07/2005 09:38:01
The following reply was made to PR pkg/30106; it has been noted by GNATS.

From: "Shin'ichiro TAYA" <>
Subject: Re: pkg/30106
Date: Sat, 07 May 2005 18:40:37 +0900

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 segv wrote:
 >  It's not just Solaris problem, it's a 64-bit issue which will bite on 64-bit platforms like UltraSparc, not matter which OS is installed
 I think source code itself has problem.
 I tested this problem with attached source code on sparc64.
 Simply compiled code has problem you mentioned.
 But shared object created from this source code doesn't dump core.
 I don't have much knowledge about toolchain nor sparc asm lang.
 I don't known whether data is properly aligned or unaligned access is 
 prevented. Anyway I never see this problem with alpha, amd64, 
 sparc64(all NetBSD). And there is a official distribution for Solaris.
 I wonder this patch is really required or not....
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 #include	<inttypes.h>
 #define TX_DOUBLE_HI32_SIGNBIT   0x80000000
 #define TX_DOUBLE_HI32_EXPMASK   0x7ff00000 
 #define TX_DOUBLE_HI32_MANTMASK  0x000fffff
 typedef uint32_t PRUint32;
 //-- Initialize Double related constants
 const PRUint32 nanMask[2] =    {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_MANTMASK
 const PRUint32 infMask[2] =    {TX_DOUBLE_HI32_EXPMASK, 0};
 const PRUint32 negInfMask[2] = {TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT,
 const PRUint32 nanMask[2] =    {0xffffffff,
                                 TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_MANTMASK
 const PRUint32 infMask[2] =    {0, TX_DOUBLE_HI32_EXPMASK};
 const PRUint32 negInfMask[2] = {0, TX_DOUBLE_HI32_EXPMASK | TX_DOUBLE_HI32_SIGNBIT};
 const double NaN = *((double*)nanMask); 
 const double POSITIVE_INFINITY = *((double*)infMask);
 const double NEGATIVE_INFINITY = *((double*)negInfMask);
 	return NaN;
 #if 0
 	printf("%f", get_double());