perf options: Introduce OPT_UINTEGER

For unsigned int options to be parsed, next patches will make use of it.

Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 22 insertions, 2 deletions

diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index b05d51df2ce7..36d955e49422 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -59,6 +59,7 @@ static int get_value(struct parse_opt_ctx_t *p,
                 case OPTION_GROUP:
                 case OPTION_STRING:
                 case OPTION_INTEGER:
+                case OPTION_UINTEGER:
                 case OPTION_LONG:
                 case OPTION_U64:
                 default:
@@ -126,6 +127,22 @@ static int get_value(struct parse_opt_ctx_t *p,
                         return opterror(opt, "expects a numerical value", flags);
                 return 0;
 
+        case OPTION_UINTEGER:
+                if (unset) {
+                        *(unsigned int *)opt->value = 0;
+                        return 0;
+                }
+                if (opt->flags & PARSE_OPT_OPTARG && !p->opt) {
+                        *(unsigned int *)opt->value = opt->defval;
+                        return 0;
+                }
+                if (get_arg(p, opt, flags, &arg))
+                        return -1;
+                *(unsigned int *)opt->value = strtol(arg, (char **)&s, 10);
+                if (*s)
+                        return opterror(opt, "expects a numerical value", flags);
+                return 0;
+
         case OPTION_LONG:
                 if (unset) {
                         *(long *)opt->value = 0;
@@ -463,7 +480,10 @@ int usage_with_options_internal(const char * const *usagestr,
                 switch (opts->type) {
                 case OPTION_ARGUMENT:
                         break;
+                case OPTION_LONG:
+                case OPTION_U64:
                 case OPTION_INTEGER:
+                case OPTION_UINTEGER:
                         if (opts->flags & PARSE_OPT_OPTARG)
                                 if (opts->long_name)
                                         pos += fprintf(stderr, "[=<n>]");
@@ -503,8 +523,6 @@ int usage_with_options_internal(const char * const *usagestr,
                 case OPTION_INCR:
                 case OPTION_SET_INT:
                 case OPTION_SET_PTR:
-                case OPTION_LONG:
-                case OPTION_U64:
                         break;
                 }
 
diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h
index e301e96b9d17..c6aa4eed5edc 100644
--- a/tools/perf/util/parse-options.h
+++ b/tools/perf/util/parse-options.h
@@ -18,6 +18,7 @@ enum parse_opt_type {
         OPTION_LONG,
         OPTION_CALLBACK,
         OPTION_U64,
+        OPTION_UINTEGER,
 };
 
 enum parse_opt_flags {
@@ -101,6 +102,7 @@ struct option {
 #define OPT_SET_INT(s, l, v, h, i)  { .type = OPTION_SET_INT, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (i) }
 #define OPT_SET_PTR(s, l, v, h, p)  { .type = OPTION_SET_PTR, .short_name = (s), .long_name = (l), .value = (v), .help = (h), .defval = (p) }
 #define OPT_INTEGER(s, l, v, h)     { .type = OPTION_INTEGER, .short_name = (s), .long_name = (l), .value = (v), .help = (h) }
+#define OPT_UINTEGER(s, l, v, h)    { .type = OPTION_UINTEGER, .short_name = (s), .long_name = (l), .value = (v), .help = (h) }
 #define OPT_LONG(s, l, v, h)        { .type = OPTION_LONG, .short_name = (s), .long_name = (l), .value = (v), .help = (h) }
 #define OPT_U64(s, l, v, h)         { .type = OPTION_U64, .short_name = (s), .long_name = (l), .value = (v), .help = (h) }
 #define OPT_STRING(s, l, v, a, h)   { .type = OPTION_STRING,  .short_name = (s), .long_name = (l), .value = (v), (a), .help = (h) }