[PATCH v4 06/15] tools/gputop: find program name from command line

[Zbigniew Kempczyński]

On Wed, May 07, 2025 at 04:01:39PM +0000, Jeevaka Prabu Badrappan wrote:
> program_invocation_short_name is global variable provided by glibc.
> 
> Inorder to get the igt built for Android(without glibc), find the
> program from command line without using program_invocation_short_name.
> 
> Signed-off-by: Jeevaka Prabu Badrappan <jeevaka.badrappan at intel.com>
> ---
>  tools/gputop.c | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/tools/gputop.c b/tools/gputop.c
> index 43b01f566..457a31969 100644
> --- a/tools/gputop.c
> +++ b/tools/gputop.c
> @@ -335,15 +335,22 @@ struct gputop_args {
>  	unsigned long delay_usec;
>  };
>  
> -static void help(void)
> +static void help(char* full_path)

Minor nit 'char* full_path' -> 'char *full_path'.

With that:

Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>

--
Zbigniew

>  {
> +	const char *short_program_name = strrchr(full_path, '/');
> +	if (short_program_name) {
> +		short_program_name++;
> +	} else {
> +		short_program_name = full_path;
> +	}
> +
>  	printf("Usage:\n"
>  	       "\t%s [options]\n\n"
>  	       "Options:\n"
>  	       "\t-h, --help                show this help\n"
>  	       "\t-d, --delay =SEC[.TENTHS] iterative delay as SECS [.TENTHS]\n"
>  	       "\t-n, --iterations =NUMBER  number of executions\n"
> -	       , program_invocation_short_name);
> +	       , short_program_name);
>  }
>  
>  static int parse_args(int argc, char * const argv[], struct gputop_args *args)
> @@ -384,7 +391,7 @@ static int parse_args(int argc, char * const argv[], struct gputop_args *args)
>  			}
>  			break;
>  		case 'h':
> -			help();
> +			help(argv[0]);
>  			return 0;
>  		default:
>  			fprintf(stderr, "Unkonwn option '%c'.\n", c);
> -- 
> 2.34.1
>