Added ITT Option (intel#58)

* Added ITT Option

* Updated Code after Review for ITT Options

* Updated Readme for ITT Logging

---------

Co-authored-by: Sarbojit2019 <sarkar.iitr@gmail.com>
Co-authored-by: CodeSlinger <zhiqiang.ma@intel.com>

Author: 3 people

tools/unitrace/README.md

@@ -56,6 +56,7 @@ The options can be one or more of the following:
 --chrome-sycl-logging          Trace SYCL runtime and plugin
 --chrome-ccl-logging           Trace oneCCL
 --chrome-dnn-logging           Trace oneDNN
+--chrome-itt-logging           Trace activities in applications instrumented using Intel(R) Instrumentation and Tracing Technology APIs
 --chrome-call-logging          Trace Level Zero and/or OpenCL host calls
 --chrome-kernel-logging        Trace device and host kernel activities
 --chrome-device-logging        Trace device activities
@@ -217,6 +218,10 @@ The **--chrome-ccl-logging** traces CCL runtime activities
 
 Similarly, one can use **--chrome-dnn-logging** for oneDNN. 
 
+The **--chrome-itt-logging** traces activities in applications instrumented using Intel(R) Instrumentation and Tracing Technology APIs
+
+![ITT logging!](/tools/unitrace/doc/images/chrome_itt_logging.png)
+
 The **--ccl-summary-report  [-r]** option outputs CCL call timing summary:
 ![CCL Call Timing!](/tools/unitrace/doc/images/ccl_summary_report.png)
 

tools/unitrace/doc/images/chrome_itt_logging.png

@@ -91,6 +91,10 @@ void Usage(char * progname) {
     "--chrome-device-logging        " <<
     "Trace device activities" <<
     std::endl;
+  std::cout <<
+    "--chrome-itt-logging           " <<
+    "Trace activities in applications instrumented using Intel(R) Instrumentation and Tracing Technology APIs" <<
+    std::endl;
   std::cout <<
     "--chrome-no-thread-on-device   " <<
     "Trace device activities without per-thread info." << std::endl << 
@@ -386,6 +390,9 @@ int ParseArgs(int argc, char* argv[]) {
     } else if (strcmp(argv[i], "--version") == 0) {
       std::cout << UNITRACE_VERSION << " (" << COMMIT_HASH << ")" << std::endl;
       return 0;
+    } else if (strcmp(argv[i], "--chrome-itt-logging") == 0 ) {
+      utils::SetEnv("UNITRACE_ChromeIttLogging", "1");
+      ++app_index;
     } else {
       break;
     }