X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FApplication%2FHelloWorld%2FHelloWorld.c;h=e45a3746e7c4b88ccbaa6a5430ffdd57c30662a1;hp=b1d16f76a0b0b9a2de7ec7987c042c5b47606419;hb=HEAD;hpb=223c22d8ea61384a107c6dbc666d6fd33f573cce
diff --git a/MdeModulePkg/Application/HelloWorld/HelloWorld.c b/MdeModulePkg/Application/HelloWorld/HelloWorld.c
index b1d16f76a0..ab581c040c 100644
--- a/MdeModulePkg/Application/HelloWorld/HelloWorld.c
+++ b/MdeModulePkg/Application/HelloWorld/HelloWorld.c
@@ -1,33 +1,34 @@
/** @file
- This simple application just print a "UEFI Hello World!" to the UEFI Console.
-
- Copyright (c) 2006 - 2007, Intel Corporation
- All rights reserved. This program and the accompanying materials
- are licensed and made available under the terms and conditions of the BSD License
- which accompanies this distribution. The full text of the license may be found at
- http://opensource.org/licenses/bsd-license.php
+ This sample application bases on HelloWorld PCD setting
+ to print "UEFI Hello World!" to the UEFI Console.
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include
#include
-#include
#include
#include
-#include
+//
+// String token ID of help message text.
+// Shell supports to find help message in the resource section of an application image if
+// .MAN file is not found. This global variable is added to make build tool recognizes
+// that the help string is consumed by user and then build tool will add the string into
+// the resource section. Thus the application can use '-?' option to show help message in
+// Shell.
+//
+GLOBAL_REMOVE_IF_UNREFERENCED EFI_STRING_ID mStringHelpTokenId = STRING_TOKEN (STR_HELLO_WORLD_HELP_INFORMATION);
/**
The user Entry Point for Application. The user code starts with this function
- as the real entry point for the image goes into a library that calls this
- function.
+ as the real entry point for the application.
- @param[in] ImageHandle The firmware allocated handle for the EFI image.
+ @param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
-
+
@retval EFI_SUCCESS The entry point is executed successfully.
@retval other Some error occurs when executing this entry point.
@@ -39,16 +40,19 @@ UefiMain (
IN EFI_SYSTEM_TABLE *SystemTable
)
{
- UINT32 Index;
-
- Index = 0;
-
+ UINT32 Index;
+
+ Index = 0;
+
//
// Three PCD type (FeatureFlag, UINT32 and String) are used as the sample.
//
if (FeaturePcdGet (PcdHelloWorldPrintEnable)) {
- for (Index = 0; Index < PcdGet32 (PcdHelloWorldPrintTimes); Index ++) {
- Print ((CHAR16*)PcdGetPtr (PcdHelloWorldPrintString));
+ for (Index = 0; Index < PcdGet32 (PcdHelloWorldPrintTimes); Index++) {
+ //
+ // Use UefiLib Print API to print string to UEFI console
+ //
+ Print ((CHAR16 *)PcdGetPtr (PcdHelloWorldPrintString));
}
}