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Re: [SPARC] access to atomic compare-and-swap on LEON3


Hi Eric,

Thank you very much for your work. I will test it ASAP

WeiY
Best Regards
在 2013-8-9,下午5:06,Eric Botcazou <ebotcazou@adacore.com> 写道:

> This enables access to the atomic compare-and-swap on LEON3 in conjunction with 
> the binutils patch at:
>  http://sourceware.org/ml/binutils/2013-08/msg00038.html
> 
> Tested on SPARC/Solaris and sparc-elf, applied on the mainline.
> 
> 
> 2013-08-09  Eric Botcazou  <ebotcazou@adacore.com>
> 
> 	* configure.ac: Add GAS check for LEON instructions on SPARC.
> 	* configure: Regenerate.
> 	* config.in: Likewise.
> 	* config.gcc (with_cpu): Remove sparc-leon*-* and deal with LEON in the
> 	sparc*-*-* block.
> 	* config/sparc/sparc.opt (LEON, LEON3): New masks.
> 	* config/sparc/sparc.h (ASM_CPU32_DEFAULT_SPEC): Set to AS_LEON_FLAG
> 	for LEON or LEON3.
> 	(ASM_CPU_SPEC): Pass AS_LEON_FLAG if -mcpu=leon or -mcpu=leon3.
> 	(AS_LEON_FLAG): New macro.
> 	* config/sparc/sparc.c (sparc_option_override): Set MASK_LEON for leon
> 	and MASK_LEON3 for leon3 and unset them if HAVE_AS_LEON is not defined.
> 	Deal with LEON and LEON3 for the memory model.
> 	* config/sparc/sync.m (atomic_compare_and_swap<mode>): Enable for LEON3
> 	(atomic_compare_and_swap<mode>_1): Likewise.
> 	(*atomic_compare_and_swap<mode>_1): Likewise.
> 
> 
> -- 
> Eric Botcazou
> <p.diff>


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