diff options
Diffstat (limited to 'EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c')
| -rw-r--r-- | EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c | 265 |
1 files changed, 155 insertions, 110 deletions
diff --git a/EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c b/EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c index 9945143dc4..5f5f2c56ca 100644 --- a/EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c +++ b/EdkModulePkg/Library/EdkUefiDebugLibConOut/DebugLib.c @@ -1,105 +1,99 @@ -/*++
+/** @file
+ UEFI Debug Library that uses PrintLib to send messages to CONOUT.
-Copyright (c) 2006, 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
-
-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, Intel Corporation<BR>
+ 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
-Module Name:
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
- DebugLib.c
+**/
-Abstract:
+//
+// Define the maximum debug and assert message length that this library supports.
+//
+#define MAX_DEBUG_MESSAGE_LENGTH 0x100
- UEFI Debug Library that uses PrintLib to send messages to CONOUT
+STATIC BOOLEAN mDebugLevelInstalled = FALSE;
+STATIC EFI_DEBUG_LEVEL_PROTOCOL mDebugLevel = { 0 };
---*/
+/**
+ Installs Debug Level Protocol.
+
+ The constructor function installs Debug Level Protocol on the ImageHandle.
+ It will ASSERT() if the installation fails and will always return EFI_SUCCESS.
-static BOOLEAN mDebugLevelInstalled = FALSE;
-static EFI_DEBUG_LEVEL_PROTOCOL mDebugLevel = { 0 };
+ @param ImageHandle The firmware allocated handle for the EFI image.
+ @param SystemTable A pointer to the EFI System Table.
+
+ @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
+**/
EFI_STATUS
+EFIAPI
DebugLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
---*/
{
- EFI_STATUS Status;
+ EFI_STATUS Status;
//
- // Initialize Debug Level Protocol
+ // Initialize Debug Level Protocol.
//
mDebugLevel.DebugLevel = PcdGet32(PcdDebugPrintErrorLevel);
//
- // Install Debug Level Protocol
+ // Install Debug Level Protocol.
//
Status = gBS->InstallMultipleProtocolInterfaces (
&ImageHandle,
- &gEfiDebugLevelProtocolGuid, &mDebugLevel,
+ &gEfiDebugLevelProtocolGuid,
+ &mDebugLevel,
NULL
);
ASSERT_EFI_ERROR (Status);
//
- // Set flag to show that the Debug Level Protocol has been installed
+ // Set flag to show that the Debug Level Protocol has been installed.
//
mDebugLevelInstalled = TRUE;
- return EFI_SUCCESS;
+ return Status;
}
-VOID
-EFIAPI
-DebugPrint (
- IN UINTN ErrorLevel,
- IN CHAR8 *Format,
- ...
- )
-/*++
-
-Routine Description:
-
- Wrapper for DebugVPrint ()
-
-Arguments:
+/**
- ErrorLevel - If error level is set do the debug print.
+ Prints a debug message to the debug output device if the specified error level is enabled.
- Format - String to use for the print, followed by Print arguments.
+ 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.
- ... - Print arguments.
+ If Format is NULL, then ASSERT().
-Returns:
-
- None
+ @param ErrorLevel The error level of the debug message.
+ @param Format Format string for the debug message to print.
---*/
+**/
+VOID
+EFIAPI
+DebugPrint (
+ IN UINTN ErrorLevel,
+ IN CONST CHAR8 *Format,
+ ...
+ )
{
- CHAR16 Buffer[0x100];
- CHAR16 UnicodeBuffer[0x100];
- UINT32 Index;
+ CHAR16 Buffer[MAX_DEBUG_MESSAGE_LENGTH];
VA_LIST Marker;
//
- // Check to see if CONOUT is avilable
+ // If Format is NULL, then ASSERT().
//
- if (gST->ConOut == NULL) {
- return;
- }
+ ASSERT (Format != NULL);
//
// Check driver Debug Level value and global debug level
@@ -115,82 +109,79 @@ Returns: }
//
- // BUGBUG: Need print that take CHAR8 Format and returns CHAR16 Buffer
- //
- for (Index = 0; Format[Index] != 0; Index++) {
- UnicodeBuffer[Index] = Format[Index];
- }
- UnicodeBuffer[Index] = Format[Index];
-
- //
// Convert the DEBUG() message to a Unicode String
//
VA_START (Marker, Format);
- UnicodeVSPrint (Buffer, sizeof (Buffer), UnicodeBuffer, Marker);
+ UnicodeVSPrintAsciiFormat (Buffer, sizeof (Buffer), Format, Marker);
VA_END (Marker);
//
- // Send the print string to the Standard Error device
+ // Send the print string to the Console Output device if CONOUT is available.
//
- gST->ConOut->OutputString (gST->ConOut, Buffer);
+ if (gST->ConOut != NULL) {
+ gST->ConOut->OutputString (gST->ConOut, Buffer);
+ }
}
-VOID
-EFIAPI
-DebugAssert (
- IN CHAR8 *FileName,
- IN UINTN LineNumber,
- IN CHAR8 *Description
- )
-/*++
-Routine Description:
-
- Worker function for ASSERT(). If Error Logging hub is loaded log ASSERT
- information. If Error Logging hub is not loaded CpuBreakpoint ().
+/**
- We use UINT64 buffers due to IPF alignment concerns.
+ Prints an assert message containing a filename, line number, and description.
+ This may be followed by a breakpoint or a dead loop.
-Arguments:
+ Print a message of the form "ASSERT <FileName>(<LineNumber>): <Description>\n"
+ to the debug output device. If DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED bit of
+ PcdDebugProperyMask is set then CpuBreakpoint() is called. Otherwise, if
+ DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED bit of PcdDebugProperyMask is set then
+ CpuDeadLoop() is called. If neither of these bits are set, then this function
+ returns immediately after the message is printed to the debug output device.
+ DebugAssert() must actively prevent recusrsion. If DebugAssert() is called while
+ processing another DebugAssert(), then DebugAssert() must return immediately.
- FileName - File name of failing routine.
+ If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.
- LineNumber - Line number of failing ASSERT().
+ If Description is NULL, then a <Description> string of "(NULL) Description" is printed.
- Description - Descritption, usally the assertion,
-
-Returns:
-
- None
+ @param FileName Pointer to the name of the source file that generated the assert condition.
+ @param LineNumber The line number in the source file that generated the assert condition
+ @param Description Pointer to the description of the assert condition.
---*/
+**/
+VOID
+EFIAPI
+DebugAssert (
+ IN CONST CHAR8 *FileName,
+ IN UINTN LineNumber,
+ IN CONST CHAR8 *Description
+ )
{
- CHAR16 Buffer[0x100];
-
- //
- // Check to see if CONOUT is avilable
- //
- if (gST->ConOut == NULL) {
- return;
- }
+ CHAR16 Buffer[MAX_DEBUG_MESSAGE_LENGTH];
//
// Generate the ASSERT() message in Unicode format
//
- UnicodeSPrint (Buffer, sizeof (Buffer), (CHAR16 *)L"ASSERT %s(%d): %s\n", FileName, LineNumber, Description);
+ UnicodeSPrintAsciiFormat (Buffer, sizeof (Buffer), "ASSERT %s(%d): %s\n", FileName, LineNumber, Description);
//
- // Send the print string to the Standard Error device
+ // Send the print string to the Console Output device if CONOUT is available.
//
- gST->ConOut->OutputString (gST->ConOut, Buffer);
+ if (gST->ConOut != NULL) {
+ gST->ConOut->OutputString (gST->ConOut, Buffer);
+ }
//
- // Put break point in module that contained the error.
+ // Generate a Breakpoint, DeadLoop, or NOP based on PCD settings
//
- CpuBreakpoint ();
+ if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_BREAKPOINT_ENABLED) != 0) {
+ CpuBreakpoint ();
+ } else if ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_ASSERT_DEADLOOP_ENABLED) != 0) {
+ CpuDeadLoop ();
+ }
}
+
/**
+
Fills a target buffer with PcdDebugClearMemoryValue, and returns the target buffer.
This function fills Length bytes of Buffer with the value specified by
@@ -200,8 +191,8 @@ Returns: If Length is greater than (MAX_ADDRESS – Buffer + 1), then ASSERT().
- @param Buffer Pointer to the target buffer to fill with PcdDebugClearMemoryValue.
- @param Length Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.
+ @param Buffer Pointer to the target buffer to fill with PcdDebugClearMemoryValue.
+ @param Length Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue.
@return Buffer
@@ -213,11 +204,29 @@ DebugClearMemory ( IN UINTN Length
)
{
-// SetMem (Buffer, Length, PcdGet8(PcdDebugClearMemoryValue));
- SetMem (Buffer, Length, 0xAF);
- return Buffer;
+ //
+ // If Buffer is NULL, then ASSERT().
+ //
+ ASSERT (Buffer != NULL);
+
+ //
+ // SetMem() checks for the the ASSERT() condition on Length and returns Buffer
+ //
+ return SetMem (Buffer, Length, PcdGet8(PcdDebugClearMemoryValue));
}
+
+/**
+
+ Returns TRUE if ASSERT() macros are enabled.
+
+ This function returns TRUE if the DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of
+ PcdDebugProperyMask is set. Otherwise FALSE is returned.
+
+ @retval TRUE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is set.
+ @retval FALSE The DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED bit of PcdDebugProperyMask is clear.
+
+**/
BOOLEAN
EFIAPI
DebugAssertEnabled (
@@ -227,6 +236,18 @@ DebugAssertEnabled ( return ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_ASSERT_ENABLED) != 0);
}
+
+/**
+
+ Returns TRUE if DEBUG()macros are enabled.
+
+ This function returns TRUE if the DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of
+ PcdDebugProperyMask is set. Otherwise FALSE is returned.
+
+ @retval TRUE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is set.
+ @retval FALSE The DEBUG_PROPERTY_DEBUG_PRINT_ENABLED bit of PcdDebugProperyMask is clear.
+
+**/
BOOLEAN
EFIAPI
DebugPrintEnabled (
@@ -236,6 +257,18 @@ DebugPrintEnabled ( return ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_PRINT_ENABLED) != 0);
}
+
+/**
+
+ Returns TRUE if DEBUG_CODE()macros are enabled.
+
+ This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of
+ PcdDebugProperyMask is set. Otherwise FALSE is returned.
+
+ @retval TRUE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is set.
+ @retval FALSE The DEBUG_PROPERTY_DEBUG_CODE_ENABLED bit of PcdDebugProperyMask is clear.
+
+**/
BOOLEAN
EFIAPI
DebugCodeEnabled (
@@ -245,6 +278,18 @@ DebugCodeEnabled ( return ((PcdGet8(PcdDebugPropertyMask) & DEBUG_PROPERTY_DEBUG_CODE_ENABLED) != 0);
}
+
+/**
+
+ Returns TRUE if DEBUG_CLEAR_MEMORY()macro is enabled.
+
+ This function returns TRUE if the DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of
+ PcdDebugProperyMask is set. Otherwise FALSE is returned.
+
+ @retval TRUE The DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is set.
+ @retval FALSE The DEBUG_PROPERTY_DEBUG_CLEAR_MEMORY_ENABLED bit of PcdDebugProperyMask is clear.
+
+**/
BOOLEAN
EFIAPI
DebugClearMemoryEnabled (
|