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-rw-r--r--tools/perf/util/iostat.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/tools/perf/util/iostat.c b/tools/perf/util/iostat.c
new file mode 100644
index 000000000..57dd49da2
--- /dev/null
+++ b/tools/perf/util/iostat.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "util/iostat.h"
+#include "util/debug.h"
+
+enum iostat_mode_t iostat_mode = IOSTAT_NONE;
+
+__weak int iostat_prepare(struct evlist *evlist __maybe_unused,
+ struct perf_stat_config *config __maybe_unused)
+{
+ return -1;
+}
+
+__weak int iostat_parse(const struct option *opt __maybe_unused,
+ const char *str __maybe_unused,
+ int unset __maybe_unused)
+{
+ pr_err("iostat mode is not supported on current platform\n");
+ return -1;
+}
+
+__weak void iostat_list(struct evlist *evlist __maybe_unused,
+ struct perf_stat_config *config __maybe_unused)
+{
+}
+
+__weak void iostat_release(struct evlist *evlist __maybe_unused)
+{
+}
+
+__weak void iostat_print_header_prefix(struct perf_stat_config *config __maybe_unused)
+{
+}
+
+__weak void iostat_print_metric(struct perf_stat_config *config __maybe_unused,
+ struct evsel *evsel __maybe_unused,
+ struct perf_stat_output_ctx *out __maybe_unused)
+{
+}
+
+__weak void iostat_prefix(struct evlist *evlist __maybe_unused,
+ struct perf_stat_config *config __maybe_unused,
+ char *prefix __maybe_unused,
+ struct timespec *ts __maybe_unused)
+{
+}
+
+__weak void iostat_print_counters(struct evlist *evlist __maybe_unused,
+ struct perf_stat_config *config __maybe_unused,
+ struct timespec *ts __maybe_unused,
+ char *prefix __maybe_unused,
+ iostat_print_counter_t print_cnt_cb __maybe_unused)
+{
+}