Merge branch 'feature_wuch' into 'master'

fix usage message

See merge request !548

mace/benchmark/benchmark_model.cc

@@ -201,7 +201,9 @@ DEFINE_int32(cpu_affinity_policy, 1,
 int Main(int argc, char **argv) {
   MACE_CHECK(FLAGS_device != "HEXAGON",
              "Model benchmark tool do not support DSP.");
-  gflags::SetUsageMessage("some usage message");
+  std::string usage = "benchmark model\nusage: " + std::string(argv[0])
+      + " [flags]";
+  gflags::SetUsageMessage(usage);
   gflags::ParseCommandLineFlags(&argc, &argv, true);
 
   LOG(INFO) << "Model name: [" << FLAGS_model_name << "]";

mace/benchmark/model_throughput_test.cc

@@ -163,7 +163,9 @@ DEFINE_string(dsp_model_data_file, "", "dsp model data file name");
 DEFINE_int32(run_seconds, 10, "run seconds");
 
 int Main(int argc, char **argv) {
-  gflags::SetUsageMessage("some usage message");
+  std::string usage = "model throughput test\nusage: " + std::string(argv[0])
+      + " [flags]";
+  gflags::SetUsageMessage(usage);
   gflags::ParseCommandLineFlags(&argc, &argv, true);
 
   LOG(INFO) << "mace version: " << MaceVersion();

mace/core/testing/test_benchmark_main.cc

@@ -27,7 +27,9 @@ DEFINE_int32(cpu_affinity_policy, 1,
              "0:AFFINITY_NONE/1:AFFINITY_BIG_ONLY/2:AFFINITY_LITTLE_ONLY");
 
 int main(int argc, char **argv) {
-  gflags::SetUsageMessage("some usage message");
+  std::string usage = "run ops benchmark\nusage: " + std::string(argv[0])
+      + " [flags]";
+  gflags::SetUsageMessage(usage);
   gflags::ParseCommandLineFlags(&argc, &argv, true);
 
   // config runtime

mace/examples/example.cc

@@ -258,7 +258,9 @@ bool RunModel(const std::vector<std::string> &input_names,
 }
 
 int Main(int argc, char **argv) {
-  gflags::SetUsageMessage("some usage message");
+  std::string usage = "example run\nusage: " + std::string(argv[0])
+      + " [flags]";
+  gflags::SetUsageMessage(usage);
   gflags::ParseCommandLineFlags(&argc, &argv, true);
 
   LOG(INFO) << "mace version: " << MaceVersion();

mace/tools/validation/mace_run.cc

@@ -423,7 +423,9 @@ bool RunModel(const std::string &model_name,
 }
 
 int Main(int argc, char **argv) {
-  gflags::SetUsageMessage("some usage message");
+  std::string usage = "mace run model\nusage: " + std::string(argv[0])
+      + " [flags]";
+  gflags::SetUsageMessage(usage);
   gflags::ParseCommandLineFlags(&argc, &argv, true);
 
   LOG(INFO) << "model name: " << FLAGS_model_name;