[PATCH v1 1/1] gas: microblaze: Add mlittle-endian and mbig-endian flags

Frager, Neal neal.frager@amd.com
Wed Sep 27 14:50:41 GMT 2023


Hi Nick,


> Added support in gas for mlittle-endian and mbig-endian flags as 
> options.

> Thanks for contributing this patch.  There are a few things however that need to be fixed/tidied up:

>   #define OPTION_EB (OPTION_MD_BASE + 0)
>   #define OPTION_EL (OPTION_MD_BASE + 1)
> +#define OPTION_LITTLE (OPTION_MD_BASE + 2) #define OPTION_BIG 
> +(OPTION_MD_BASE + 3)

> There is no need to have new values for the new options, you can just reuse the existing ones.  ie:

Thank you for the simplification!

> @@ -1854,6 +1856,8 @@ struct option md_longopts[] =
>   {
>     {"EB", no_argument, NULL, OPTION_EB},
>     {"EL", no_argument, NULL, OPTION_EL},
> +  {"mlittle-endian", no_argument, NULL, OPTION_LITTLE},  
> + {"mbig-endian", no_argument, NULL, OPTION_BIG},
>     { NULL,          no_argument, NULL, 0}
>   };

> Change this to:

 >     {"EB", no_argument, NULL, OPTION_EB},
 >     {"EL", no_argument, NULL, OPTION_EL},
 > +  {"mlittle-endian", no_argument, NULL, OPTION_EL},  > +  {"mbig-endian", no_argument, NULL, OPTION_EB},
 >     { NULL,          no_argument, NULL, 0}
 >   };

Changed with v2.

> Then you can also delete:

> @@ -2507,9 +2511,11 @@ md_parse_option (int c, const char * arg ATTRIBUTE_UNUSED)
>     switch (c)
>       {
>       case OPTION_EB:
> +    case OPTION_BIG:
>         target_big_endian = 1;
>         break;
>       case OPTION_EL:
> +    case OPTION_LITTLE:
>         target_big_endian = 0;
>         break;
>       default:

> As this change is no longer needed.

Changed with v2.

> More importantly however, since you are adding new MicroBlaze specific command line options you need to update the gas/doc/as.texi file to mention them (search for "Target MICROBLAZE options") and the gas/doc/c-microblaze.texi file to add a "MicroBlaze Options" node.

As it is my first time modifying .texi files, I hope I did it correctly.  Could you review v2 and let me know what changes need to be made?

Best regards,
Neal Frager
AMD


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