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Re: 64bit HPUX problems

From: John David Anglin
Subject: Re: 64bit HPUX problems
Date: Wed, 14 Aug 2002 14:16:31 -0400 (EDT)

>  >I would argue that the code architecture is in fact different when the
>  >PSW W bit is set to 1 (e.g., assemble_16, assemble_16a, add and branch
>  >instruction conditions in table D-8, and addressing).
> It is different.  But that's not what the "w" character in the output from
> config.guess represents.  That character represents whether or not the
> OS is capable of dealing with 64 bit binaries.

Ok, I understand.  Actually, looking at the sysconf man page:

 KERNEL_BITS              _SC_KERNEL_BITS        Returns the number of
                                                 bits used by the kernel
                                                 for pointer and long
                                                 data types.  Current
                                                 values include 32 and

It doesn't directly indicate that the OS is capable of dealing with
64-bit binaries.  On PA2.0 machines that have wide PDC calls, the
parisc-linux kernel runs in 64-bit mode but binaries run in narrow mode
without the W bit set.

As far as package configuration goes, I doubt that we care about the
number of bits used by the kernel for pointers, etc.  We care about the
code architecure for binaries and the data model.  Thus, it might be
better if this was changed to my original preconception.

J. David Anglin                                  address@hidden
National Research Council of Canada              (613) 990-0752 (FAX: 952-6605)

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