Update DebugLib to provide support for "err" command in the EFI Shell to adjust the filter mask for DEBUG() messages. The "err" command provide the ability to adjust this filter mask at a global level through an EFI Variable and at the module level through a the Debug Mask Protocol. In order to support the degree of flexibility, the DebugLib needs to use library to abstract the get/set operations to the filter mask.

1) Define new DebugPrintErrorLevelLib that produces an API that DebugPrint() APIs in DebugLib implementations can use to retrieve the current mask for filtering DebugPrint() statements.
2) Add a BASE type implementation of the DebugPrintErrorLevelLib that directly accessed PcdDebugPrintErrorLevel to provide backward compatibility with the current EDK II DebugLib behavior.
3) Update description of the DebugPrint() API in the DebugLib to describe the new dependency on the DebugPrintErrorLevelLib that replaces the prior dependency in the PcdDebugPrintErrorLevel PCD.
4) Update the comments in BaseDebugLibNull to match (3).
5) Update BaseDebugLibSerialPort to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.
6) Update UefiDebugLinConOut to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.
7) Update UefiDebugLibStdErr to use DebugPrintErrorLevelLib instead of the PcdDebugPrintErrorLevel PCD.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11365 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 8 insertions, 7 deletions

diff --git a/MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf b/MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
index be636c89a2..61befd688b 100644
--- a/MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
+++ b/MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf
@@ -2,7 +2,7 @@
 #  Instance of Debug Library based on Serial Port Library.

 #  It uses Print Library to produce formatted output strings.

 #

-#  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+#  Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>

 #

 #  This program and the accompanying materials

 #  are licensed and made available under the terms and conditions of the BSD License

@@ -39,9 +39,9 @@
   PcdLib

   PrintLib

   BaseLib

+  DebugPrintErrorLevelLib

 

 [Pcd]

-  gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel

   gEfiMdePkgTokenSpaceGuid.PcdDebugClearMemoryValue

   gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask

 

diff --git a/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c b/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
index b54fa15d98..e1674fc25d 100644
--- a/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
+++ b/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
@@ -7,7 +7,7 @@
   being blocked.  This may occur if a key(s) are pressed in a terminal emulator

   used to monitor the DEBUG() and ASSERT() messages. 

 

-  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>

+  Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>

   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        

@@ -25,6 +25,7 @@
 #include <Library/PcdLib.h>

 #include <Library/BaseMemoryLib.h>

 #include <Library/SerialPortLib.h>

+#include <Library/DebugPrintErrorLevelLib.h>

 

 //

 // Define the maximum debug and assert message length that this library supports 

@@ -49,9 +50,9 @@ BaseDebugLibSerialPortConstructor (
 /**

   Prints a debug message to the debug output device if the specified error level is enabled.

 

-  If any bit in ErrorLevel is also set in PcdDebugPrintErrorLevel, then print 

-  the message specified by Format and the associated variable argument list to 

-  the debug output device.

+  If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function 

+  GetDebugPrintErrorLevel (), then print the message specified by Format and the 

+  associated variable argument list to the debug output device.

 

   If Format is NULL, then ASSERT().

 

@@ -80,7 +81,7 @@ DebugPrint (
   //

   // Check driver debug mask value and global mask

   //

-  if ((ErrorLevel & PcdGet32 (PcdDebugPrintErrorLevel)) == 0) {

+  if ((ErrorLevel & GetDebugPrintErrorLevel ()) == 0) {

     return;

   }