[PATCH] gas: Document sparc's %l34 and %h34

David Miller davem@davemloft.net
Thu Apr 19 20:38:00 GMT 2012


From: David Miller <davem@davemloft.net>
Date: Tue, 17 Apr 2012 19:24:17 -0400 (EDT)

> Ok to commit?

Ping?

> gas/
> 
> 	* doc/c-sparc.text: Document %l34 and %h34.
> 
> diff --git a/gas/doc/c-sparc.texi b/gas/doc/c-sparc.texi
> index 099c031..a47e8b2 100644
> --- a/gas/doc/c-sparc.texi
> +++ b/gas/doc/c-sparc.texi
> @@ -584,9 +584,24 @@ also be generated using @samp{%ulo}.
>  @item
>  @code{R_SPARC_M44} is requested using @samp{%m44}.
>  @item
> -@code{R_SPARC_L44} is requested using @samp{%l44}.
> +@code{R_SPARC_L44} is requested using @samp{%l44} or @samp{%l34}.
> +@item
> +@code{R_SPARC_H34} is requested using @samp{%h34}.
>  @end itemize
>  
> +The @samp{%l34} generates a @code{R_SPARC_L44} relocation because it
> +calculates the necessary value, and therefore no explicit
> +@code{R_SPARC_L34} relocation needed to be created for this purpose.
> +
> +The @samp{%h34} and @samp{%l34} relocations are used for the abs34 code
> +model.  Here is an example abs34 address generation sequence:
> +
> +@example
> +sethi %h34(symbol), %g1
> +sllx  %g1, 2, %g1
> +or    %g1, %l34(symbol), %g1
> +@end example
> +
>  The PC relative relocation @code{R_SPARC_PC22} can be obtained by
>  enclosing an operand inside of @samp{%pc22}.  Likewise, the
>  @code{R_SPARC_PC10} relocation can be obtained using @samp{%pc10}.



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