Change loader log file location

Signed-off-by: Jemale Lockett <[email protected]>

Author: Jemale

source/loader/ze_loader.cpp

@@ -10,6 +10,12 @@
 #include "driver_discovery.h"
 #include <iostream>
 
+#ifdef __linux__
+#include <unistd.h>
+#include <sys/types.h>
+#include <pwd.h>
+#endif // __linux__
+
 namespace loader
 {
     ///////////////////////////////////////////////////////////////////////////////
@@ -261,16 +267,45 @@ namespace loader
         auto discoveredDrivers = discoverEnabledDrivers();
         std::string loadLibraryErrorValue;
 
-
+        const char *home_dir = "";
+#ifdef _WIN32
+        std::string home_dir_string = getenv_string("USERPROFILE");
+        if (home_dir == ""){
+            auto home_drive = getenv_string("HOMEDRIVE");
+            auto home_path = getenv_string("HOMEPATH");
+            if ((home_drive != "") && (home_path != "")) {
+                home_dir_string = home_drive + home_path;
+            } else {
+                home_dir_string = ".";
+            }
+        }
+        home_dir = home_dir_string.c_str();
+#else
+        home_dir = getenv("HOME");
+
+        if ((home_dir = getenv("HOME")) == NULL) {
+            home_dir = getpwuid(getuid())->pw_dir;
+            if (home_dir == NULL) {
+                home_dir = ".";
+            }
+        }
+#endif
         auto loader_file = getenv_string("ZEL_LOADER_LOG_FILE");
         if (loader_file.empty()){
             loader_file = LOADER_LOG_FILE_DEFAULT;
         }
 
+        std::string full_log_file_path = "";
+
+#ifdef _WIN32
+        full_log_file_path = std::string(home_dir) + "\\" + LOADER_LOG_FILE_DIRECTORY + "\\" + loader_file;
+#else
+        full_log_file_path = std::string(home_dir) + "/" + LOADER_LOG_FILE_DIRECTORY + "/" + loader_file;
+#endif
         auto logging_enabled = getenv_tobool( "ZEL_ENABLE_LOADER_LOGGING" );
 
         auto log_level = getenv_string("ZEL_LOADER_LOGGING_LEVEL");
-        zel_logger =  std::make_shared<Logger>("ze_loader", loader_file, !log_level.empty() ? log_level : "warn", logging_enabled);
+        zel_logger =  std::make_shared<Logger>("ze_loader", full_log_file_path, !log_level.empty() ? log_level : "warn", logging_enabled);
         if ((log_level == "trace") && !debugTraceEnabled) {
             debugTraceEnabled = true;
             zel_logger->log_to_console = false;

source/utils/logging.h

@@ -10,6 +10,7 @@
 #define level_zero_loader_LOGGING_HPP
 
 #define LOADER_LOG_FILE_DEFAULT "ze_loader.log"
+#define LOADER_LOG_FILE_DIRECTORY ".oneapi_logs"
 
 #include <iostream>
 #include <sstream>