SWDEV-444112: Fixing plugins race condition

Change-Id: I0057d1ade4e1123b878489ff31851b25976217c6


[ROCm/rocprofiler commit: 6ed22f3d62]

projects/rocprofiler/plugin/file/file.cpp

@@ -80,7 +80,6 @@ std::vector<std::string> GetCounterNames() {
   return counters;
 }
 
-static std::string output_file_name;
 class file_plugin_t {
  private:
   enum class output_type_t { COUNTER, TRACER, PC_SAMPLING };
@@ -109,7 +108,8 @@ class file_plugin_t {
       if (fail()) return;
 
       const char* output_dir = getenv("OUTPUT_PATH");
-      output_file_name = getenv("OUT_FILE_NAME") ? std::string(getenv("OUT_FILE_NAME")) : "";
+      const char* output_file_name_env = getenv("OUT_FILE_NAME");
+      std::string output_file_name = output_file_name_env ? output_file_name_env : "";
 
       if (output_dir == nullptr && output_file_name.size() == 0) {
         stream_.copyfmt(std::cout);