[PATCH] [ARC][DOC] Add documentation naked, ilink and firq
Andrew Burgess
andrew.burgess@embecosm.com
Tue Jun 11 22:01:00 GMT 2019
* Claudiu Zissulescu <claziss@gmail.com> [2019-06-06 10:37:09 +0300]:
> Hi Sandra, Andrew
>
> Please find a small patch on the documentation which adds info about naked, ilink and firq function attributes.
>
> Ok to apply?
> Claudiu
>
> gcc/
> xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com>
>
> * doc/extend.texi (ARC Function Attributes): Update info.
This change looks good to me.
Thanks,
Andrew
> ---
> gcc/doc/extend.texi | 14 +++++++++++++-
> 1 file changed, 13 insertions(+), 1 deletion(-)
>
> diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
> index e8563fd0803..c2e675afa0f 100644
> --- a/gcc/doc/extend.texi
> +++ b/gcc/doc/extend.texi
> @@ -4139,7 +4139,8 @@ void f () __attribute__ ((interrupt ("ilink1")));
> @end smallexample
>
> Permissible values for this parameter are: @w{@code{ilink1}} and
> -@w{@code{ilink2}}.
> +@w{@code{ilink2}} for ARCv1 architecture, and @w{@code{ilink}} and
> +@w{@code{firq}} for ARCv2 architecture.
>
> @item long_call
> @itemx medium_call
> @@ -4182,7 +4183,17 @@ This attribute allows one to mark secure-code functions that are
> callable from normal mode. The location of the secure call function
> into the @code{sjli} table needs to be passed as argument.
>
> +@item naked
> +@cindex @code{naked} function attribute, ARC
> +This attribute allows the compiler to construct the requisite function
> +declaration, while allowing the body of the function to be assembly
> +code. The specified function will not have prologue/epilogue sequences
> +generated by the compiler. Only basic @code{asm} statements can safely
> +be included in naked functions (@pxref{Basic Asm}). While using
> +extended @code{asm} or a mixture of basic @code{asm} and C code may
> +appear to work, they cannot be depended upon to work reliably and are
> +not supported.
> +
> @end table
>
> @node ARM Function Attributes
> --
> 2.21.0
>
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