2 files changed, 17 insertions, 9 deletions

diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 806ec6391fd6..7730c1d2b5d3 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -351,19 +351,19 @@ include::itrace.txt[]
         to end of file.
 
         Also support time percent with multipe time range. Time string is
-        'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'. The maximum number of slices is 10.
+        'a%/n,b%/m,...' or 'a%-b%,c%-%d,...'.
 
         For example:
-        Select the second 10% time slice
+        Select the second 10% time slice:
         perf script --time 10%/2
 
-        Select from 0% to 10% time slice
+        Select from 0% to 10% time slice:
         perf script --time 0%-10%
 
-        Select the first and second 10% time slices
+        Select the first and second 10% time slices:
         perf script --time 10%/1,10%/2
 
-        Select from 0% to 10% and 30% to 40% slices
+        Select from 0% to 10% and 30% to 40% slices:
         perf script --time 0%-10%,30%-40%
 
 --max-blocks::
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index ac781916e51e..3499d68e1d70 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1480,8 +1480,6 @@ static int perf_sample__fprintf_synth(struct perf_sample *sample,
         return 0;
 }
 
-#define PTIME_RANGE_MAX 10
-
 struct perf_script {
         struct perf_tool        tool;
         struct perf_session     *session;
@@ -1496,7 +1494,8 @@ struct perf_script {
         struct thread_map       *threads;
         int                     name_width;
         const char              *time_str;
-        struct perf_time_interval ptime_range[PTIME_RANGE_MAX];
+        struct perf_time_interval *ptime_range;
+        int                     range_size;
         int                     range_num;
 };
 
@@ -3445,6 +3444,13 @@ int cmd_script(int argc, const char **argv)
         if (err < 0)
                 goto out_delete;
 
+        script.ptime_range = perf_time__range_alloc(script.time_str,
+                                                    &script.range_size);
+        if (!script.ptime_range) {
+                err = -ENOMEM;
+                goto out_delete;
+        }
+
         /* needs to be parsed after looking up reference time */
         if (perf_time__parse_str(script.ptime_range, script.time_str) != 0) {
                 if (session->evlist->first_sample_time == 0 &&
@@ -3457,7 +3463,7 @@ int cmd_script(int argc, const char **argv)
                 }
 
                 script.range_num = perf_time__percent_parse_str(
-                                        script.ptime_range, PTIME_RANGE_MAX,
+                                        script.ptime_range, script.range_size,
                                         script.time_str,
                                         session->evlist->first_sample_time,
                                         session->evlist->last_sample_time);
@@ -3476,6 +3482,8 @@ int cmd_script(int argc, const char **argv)
         flush_scripting();
 
 out_delete:
+        zfree(&script.ptime_range);
+
         perf_evlist__free_stats(session->evlist);
         perf_session__delete(session);