Re: [RFA] Sparc/Linux fixes part 1

[Jason R Thorpe <thorpej@wasabisystems.com>]

On Sat, Apr 20, 2002 at 05:50:49PM -0700, David S. Miller wrote:

 > This won't work at all for my case.  There is no "elfosabi" to use to
 > distinguish between Solaris ELF 32-bit Sparc (which has 16 byte long
 > doubles) and Linux ELF 32-bit Sparc (which has 8 byte long doubles).

...so have your sparc-linux-{nat,tdep} _initialize function set the default
"sparc os abi" to Linux, or something.

 > Maybe I can say "there is no way to distinguish whether it is a Linux
 > 32-bit Sparc binary or a Solaris 32-bit Sparc one" 50 more times and
 > people would begin to understand the situation.

You don't have to distinguish between the two binaries.  Seems like you only
need to provide a default depending on the target GDB was configured for,
and a way to switch them at run-time.

(no ".note.ABI-tag" note section in sparc linux binaries, eh?  oh well... my
suggestion would still work :-)

 > Here, let me show everyone exactly what I am saying:
 > 
 > ? uname -a
 > Linux nuts.ninka.net 2.4.19-pre7 #1 SMP Fri Apr 19 20:18:39 PDT 2002 sparc64 unknown
 > ? readelf -h /bin/sh | grep OS
 >   OS/ABI:                            UNIX - System V
 > ? 
 > 
 > bash-2.03$ uname -a
 > SunOS caip.rutgers.edu 5.8 Generic_108528-13 sun4u sparc SUNW,Ultra-Enterprise-10000
 > bash-2.03$ readelf -h /bin/sh | grep OS
 >   OS/ABI:                            UNIX - System V
 > bash-2.03$ 
 > 
 > See?

Yes, I understood that from the beginning.

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>