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mkimage: Show an error message when usage() is called 

Sometimes incorrect arguments are supplied but the reason is not obvious to
the user. Add some helpful messages.

Signed-off-by: Simon Glass <sjg@chromium.org>
utp
Simon Glass 2016-02-22 22:55:37 -07:00 committed by Tom Rini
parent b0a487a4eb
commit 1531034831
1 changed files with 9 additions and 8 deletions
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17
tools/mkimage.c
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@ -66,8 +66,9 @@ static void show_image_types(void)
fprintf(stderr, "\n");
}
static void usage(void)
static void usage(const char *msg)
{
fprintf(stderr, "Error: %s\n", msg);
fprintf(stderr, "Usage: %s -l image\n"
" -l ==> list image header information\n",
params.cmdname);
@ -127,7 +128,7 @@ static void process_args(int argc, char **argv)
case 'A':
params.arch = genimg_get_arch_id(optarg);
if (params.arch < 0)
usage();
usage("Invalid architecture");
break;
case 'c':
params.comment = optarg;
@ -135,7 +136,7 @@ static void process_args(int argc, char **argv)
case 'C':
params.comp = genimg_get_comp_id(optarg);
if (params.comp < 0)
usage();
usage("Invalid compression type");
break;
case 'd':
params.datafile = optarg;
@ -179,7 +180,7 @@ static void process_args(int argc, char **argv)
case 'O':
params.os = genimg_get_os_id(optarg);
if (params.os < 0)
usage();
usage("Invalid operating system");
break;
case 'r':
params.require_keys = 1;
@ -198,7 +199,7 @@ static void process_args(int argc, char **argv)
params.type = genimg_get_type_id(optarg);
if (params.type < 0) {
show_image_types();
usage();
usage("Invalid image type");
}
break;
case 'v':
@ -211,12 +212,12 @@ static void process_args(int argc, char **argv)
params.xflag++;
break;
default:
usage();
usage("Invalid option");
}
}
if (optind >= argc)
usage();
usage("Missing output filename");
params.imagefile = argv[optind];
}
@ -251,7 +252,7 @@ int main(int argc, char **argv)
*/
if (tparams->check_params)
if (tparams->check_params (&params))
usage();
usage("Bad parameters for image type");
if (!params.eflag) {
params.ep = params.addr;