Re: [PATCH 9/10] signal: do not use save_static_function() anymore

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

On Thu, 8 Feb 2007 16:39:42 +0100, "Franck Bui-Huu" <vagabon.xyz@gmail.com> 
wrote:
> You're right the patch I sent is not sufficient. However, we actually
> could restore save_static_function (well if we do it, I think it's
> much better to do it in assembly code...) for sys_sigreturn() _only_.
> In that case RESTORE_STATIC should load correct values, shouldn't it ?

Yes.  I think you are right.

> But the points are:
> 
>       - get rid of saving static registers in setup_sigcontext()
>       - get rid of restoring static registers in restore_sigcontext()
>       - free space in the signal frame

I'm afraid of ABI compatibility.  Someone might try to handle SIGSEGV
and dump all registers to debug the program without debugger...

---
Atsushi Nemoto