Re: [RFA] Sparc/Linux fixes part 1

[Andrew Cagney <ac131313@cygnus.com>]

>  The value of long double can be set at run time by examining information 
>    provided by the BFD.  ARM does this for the ABI, MIPS this for almost 
>    everything.
>    
> I don't see mips-tdep.c using bfd information in it's one and only
> call to set_gdbarch_long_double_bit(), what am I overlooking?

``almost everything''?

>  From: Andrew Cagney <ac131313@cygnus.com>
> Date: Fri, 19 Apr 2002 22:13:05 -0400
>    
>    The value of long double can be set at run time by examining information 
>    provided by the BFD.  ARM does this for the ABI, MIPS this for almost 
>    everything.
> 
> I see what MIPS is doing, it does it for other type.
> 
> But this isn't going to help my long double case on
> sparc, the BFD information is going to look identical.
> 
> It's elf_sparc 32-bit, but under Linux long double's
> are 8 bytes, and that's all she wrote. :-)

The BFD is the starting point, from there you can root around in all 
sorts of nasty places.  .note sections, symbols, ....

How does this Kernel, for instance, differentate between a GNU/Linux 
sparc binary and a Solaris binary when doing emulation?

Andrew