Re: Call i386_frame_p() only for 32bits

[Michal Ludvig <mludvig@suse.cz>]

Mark Kettenis wrote:
>    Date: Fri, 21 Mar 2003 11:08:35 +0100
>    From: Michal Ludvig <mludvig@suse.cz>
> 
>    Hi all,
>    I have this problem with i386newframe-branch on x86-64:
>    In i386-tdep.c:i386_gdbarch_init() there is always called the line
> 
>    frame_unwind_append_predicate (gdbarch, i386_frame_p);
> 
>    regardless if the inferior is 32b or 64b (of course, it isn't yet known 
>    at this time). This is obviously wrong, because what i386_frame_p() 
>    gives out doesn't make sense for 64b processes.
> 
>    How can I achieve that i386_frame_p() is registered only for 32b 
>    processes and x86_64_frame_p() only for 64b ones?
> 
> The code is laid out in such a way that if you call
> 
>    frame_unwind_append_preducte (gdbarch, x86_64_frame_p)
> 
> in your x86_64-specific init_abi functions, and make sure you never
> return NULL, GDB should never use the 32-bit i386 unwinder.

That's the problem - untill x86-64 is completely prepared for this new 
stuff, i386_frame_p always overrides the older behaviour.

Michal Ludvig
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