[PATCH] Shrink thread_info a bit
Will Deacon
will.deacon at arm.com
Mon Oct 24 09:18:53 EDT 2011
Hi Russell,
On Mon, Oct 24, 2011 at 01:48:18PM +0100, Russell King - ARM Linux wrote:
> diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
> index 7b5cc8d..a030be7 100644
> --- a/arch/arm/include/asm/thread_info.h
> +++ b/arch/arm/include/asm/thread_info.h
> @@ -59,7 +59,9 @@ struct thread_info {
> __u32 syscall; /* syscall number */
> __u8 used_cp[16]; /* thread used copro */
> unsigned long tp_value;
> +#ifdef CONFIG_CRUNCH
> struct crunch_state crunchstate;
> +#endif
> union fp_state fpstate __attribute__((aligned(8)));
Can we also shrink the contents of fp_state when AEABI && !OABI_COMPAT?
It's slightly more involved as ptrace and core-dumping would need some
similar treatment. We probably need to keep the union kicking around
though, since the iwmmxt state is held in there.
Will
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