IntelSiliconPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / MdeModulePkg / Application / HelloWorld / HelloWorld.c

diff --git a/MdeModulePkg/Application/HelloWorld/HelloWorld.c b/MdeModulePkg/Application/HelloWorld/HelloWorld.c
index bcabed5796dec4b95305ed0d59a2c861ef0147a7..0008cd14fda9f5f0fbf21b8df2a65682bfcc013d 100644 (file)
--- a/MdeModulePkg/Application/HelloWorld/HelloWorld.c
+++ b/MdeModulePkg/Application/HelloWorld/HelloWorld.c
@@ -1,32 +1,66 @@
 /** @file\r
-  This simple application just print a "UEFI Hello World!" to the UEFI Console.\r
-  \r
-  Copyright (c) 2006 - 2007, Intel Corporation                                                         \r
-  All rights reserved. This program and the accompanying materials                          \r
-  are licensed and made available under the terms and conditions of the BSD License         \r
-  which accompanies this distribution.  The full text of the license may be found at        \r
-  http://opensource.org/licenses/bsd-license.php                                            \r
+  This sample application bases on HelloWorld PCD setting\r
+  to print "UEFI Hello World!" to the UEFI Console.\r
 \r
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
+  Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+  This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 \r
 **/\r
 \r
+#include <Uefi.h>\r
+#include <Library/PcdLib.h>\r
+#include <Library/UefiLib.h>\r
+#include <Library/UefiApplicationEntryPoint.h>\r
+\r
 //\r
-// Include common header file for this module.\r
+// String token ID of help message text.\r
+// Shell supports to find help message in the resource section of an application image if\r
+// .MAN file is not found. This global variable is added to make build tool recognizes\r
+// that the help string is consumed by user and then build tool will add the string into\r
+// the resource section. Thus the application can use '-?' option to show help message in\r
+// Shell.\r
 //\r
-#include "CommonHeader.h"\r
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_STRING_ID mStringHelpTokenId = STRING_TOKEN (STR_HELLO_WORLD_HELP_INFORMATION);\r
+\r
+/**\r
+  The user Entry Point for Application. The user code starts with this function\r
+  as the real entry point for the application.\r
+\r
+  @param[in] ImageHandle    The firmware allocated handle for the EFI image.\r
+  @param[in] SystemTable    A pointer to the EFI System Table.\r
+\r
+  @retval EFI_SUCCESS       The entry point is executed successfully.\r
+  @retval other             Some error occurs when executing this entry point.\r
 \r
+**/\r
 EFI_STATUS\r
 EFIAPI\r
 UefiMain (\r
   IN EFI_HANDLE        ImageHandle,\r
   IN EFI_SYSTEM_TABLE  *SystemTable\r
   )\r
-\r
 {\r
-  \r
-  Print ((CHAR16 *)L"UEFI Hello World!\n");\r
+  UINT32 Index;\r
+\r
+  Index = 0;\r
+\r
+  //\r
+  // Three PCD type (FeatureFlag, UINT32 and String) are used as the sample.\r
+  //\r
+  if (FeaturePcdGet (PcdHelloWorldPrintEnable)) {\r
+    for (Index = 0; Index < PcdGet32 (PcdHelloWorldPrintTimes); Index ++) {\r
+      //\r
+      // Use UefiLib Print API to print string to UEFI console\r
+      //\r
+      Print ((CHAR16*)PcdGetPtr (PcdHelloWorldPrintString));\r
+    }\r
+  }\r
 \r
   return EFI_SUCCESS;\r
 }\r