The arguments of sys_sigreturn

[Takashi Komatsu]

Hi,


I have a question about the function of sys_sigreturn.
[sys/arm/arm/machdep.c]

In arm codes, the sys_sigreturn function use sigreturn_args.
I think it has to be used for "struct __ucontext".

But it use "struct sigframe".
In fact, it's called with the argument "sigframe" by other function.
(sys/arm/arm/locore.S: L558)

On the one hand, it's called by the thread library with "ucontext_t".
(lib/libthr/thread/thr_sig.c: L256)

There is collision types.

I attached my patch.
Please review.




Best regards,
Takashi Komatsu
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