hppa fixes

[Dmitry V. Levin]

On Mon, Oct 05, 2009 at 11:10:09PM +0200, Frederik Schüler wrote:
[...]
> hppa issues fixed and tested, patch attached.
[...]
> --- a/syscall.c
> +++ b/syscall.c
> @@ -2119,12 +2119,19 @@ syscall_enter(struct tcb *tcp)
>  	{
>  		int i;
>  
> +		long args[] = { PT_GR26-4*0, PT_GR26-4*1,
> +			PT_GR26-4*2, PT_GR26-4*3,
> +			PT_GR26-4*4, PT_GR26-4*5 };
> +
> +		/* How many arguments does this syscall have?  */
>  		if (tcp->scno >= 0 && tcp->scno < nsyscalls && sysent[tcp->scno].nargs != -1)
> +			/* Syscall is known, and number of arguments is known.  */
>  			tcp->u_nargs = sysent[tcp->scno].nargs;
>  		else
> -			tcp->u_nargs = MAX_ARGS;
> +			/* Unknown syscall, assume maximum number of arguments.  */
> +			tcp->u_nargs = sizeof(args)/sizeof(args[0]);
>  		for (i = 0; i < tcp->u_nargs; i++) {
> -			if (upeek(tcp, PT_GR26-4*i, &tcp->u_arg[i]) < 0)
> +			if (upeek(tcp, args[i], &tcp->u_arg[i]) < 0)
>  				return -1;
>  		}
>  	}

This hunk does not look correct.
If MAX_ARGS should be lowered on HPPA from 32 to 6, let's change it in
the defs.h file.


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