diff options
Diffstat (limited to 'kernel/trace/trace_events_hist.c')
| -rw-r--r-- | kernel/trace/trace_events_hist.c | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c index 85f6b01431c7..d239004aaf29 100644 --- a/kernel/trace/trace_events_hist.c +++ b/kernel/trace/trace_events_hist.c @@ -738,16 +738,30 @@ static void free_synth_field(struct synth_field *field) kfree(field); } -static struct synth_field *parse_synth_field(char *field_type, - char *field_name) +static struct synth_field *parse_synth_field(int argc, char **argv, + int *consumed) { struct synth_field *field; + const char *prefix = NULL; + char *field_type = argv[0], *field_name; int len, ret = 0; char *array; if (field_type[0] == ';') field_type++; + if (!strcmp(field_type, "unsigned")) { + if (argc < 3) + return ERR_PTR(-EINVAL); + prefix = "unsigned "; + field_type = argv[1]; + field_name = argv[2]; + *consumed = 3; + } else { + field_name = argv[1]; + *consumed = 2; + } + len = strlen(field_name); if (field_name[len - 1] == ';') field_name[len - 1] = '\0'; @@ -760,11 +774,15 @@ static struct synth_field *parse_synth_field(char *field_type, array = strchr(field_name, '['); if (array) len += strlen(array); + if (prefix) + len += strlen(prefix); field->type = kzalloc(len, GFP_KERNEL); if (!field->type) { ret = -ENOMEM; goto free; } + if (prefix) + strcat(field->type, prefix); strcat(field->type, field_type); if (array) { strcat(field->type, array); @@ -1009,7 +1027,7 @@ static int create_synth_event(int argc, char **argv) struct synth_field *field, *fields[SYNTH_FIELDS_MAX]; struct synth_event *event = NULL; bool delete_event = false; - int i, n_fields = 0, ret = 0; + int i, consumed = 0, n_fields = 0, ret = 0; char *name; mutex_lock(&synth_event_mutex); @@ -1061,16 +1079,16 @@ static int create_synth_event(int argc, char **argv) goto err; } - field = parse_synth_field(argv[i], argv[i + 1]); + field = parse_synth_field(argc - i, &argv[i], &consumed); if (IS_ERR(field)) { ret = PTR_ERR(field); goto err; } - fields[n_fields] = field; - i++; n_fields++; + fields[n_fields++] = field; + i += consumed - 1; } - if (i < argc) { + if (i < argc && strcmp(argv[i], ";") != 0) { ret = -EINVAL; goto err; } |