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-rw-r--r--tools/perf/builtin-trace.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 1a2a605cf068..eb70a4b71755 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1529,6 +1529,7 @@ static int trace__read_syscall_info(struct trace *trace, int id)
static int trace__validate_ev_qualifier(struct trace *trace)
{
int err = 0, i;
+ bool printed_invalid_prefix = false;
size_t nr_allocated;
struct str_node *pos;
@@ -1555,14 +1556,15 @@ static int trace__validate_ev_qualifier(struct trace *trace)
if (id >= 0)
goto matches;
- if (err == 0) {
- fputs("Error:\tInvalid syscall ", trace->output);
- err = -EINVAL;
+ if (!printed_invalid_prefix) {
+ pr_debug("Skipping unknown syscalls: ");
+ printed_invalid_prefix = true;
} else {
- fputs(", ", trace->output);
+ pr_debug(", ");
}
- fputs(sc, trace->output);
+ pr_debug("%s", sc);
+ continue;
}
matches:
trace->ev_qualifier_ids.entries[i++] = id;
@@ -1591,15 +1593,14 @@ matches:
}
}
- if (err < 0) {
- fputs("\nHint:\ttry 'perf list syscalls:sys_enter_*'"
- "\nHint:\tand: 'man syscalls'\n", trace->output);
-out_free:
- zfree(&trace->ev_qualifier_ids.entries);
- trace->ev_qualifier_ids.nr = 0;
- }
out:
+ if (printed_invalid_prefix)
+ pr_debug("\n");
return err;
+out_free:
+ zfree(&trace->ev_qualifier_ids.entries);
+ trace->ev_qualifier_ids.nr = 0;
+ goto out;
}
/*