Arnd Bergmann <arnd@xxxxxxxx> 写于 2009-07-13 22:24:28:
> Maybe to get a nicer layout, you can define separate
> structures then:
>
> struct user_regs_struct {
> unsigned long regs[32];
>
> unsigned long cel;
> unsigned long ceh;
>
> unsigned long sr0; /* cnt */
> unsigned long sr1; /* lcr */
> unsigned long sr2; /* scr */
>
> unsigned long cp0_epc;
> unsigned long cp0_ema;
> unsigned long cp0_psr;
> unsigned long cp0_ecr;
> unsigned long cp0_condition;
>
> unsigned long reserved[6]; /* future extensions */
> };
>
> #ifdef __KERNEL__
> struct pt_regs {
> /* stack arguments */
> unsigned long pad0[6];
>
> /* internal use */
> unsigned long orig_r4;
> unsigned long orig_r7;
> long is_syscall;
>
> /* saved registers */
> struct user_regs_struct uregs;
> };
> #endif
>
> That would keep the user struct relatively clean.
OK, I will send this patch soon.
Thanks,
liqin
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